Remove _ prefixed variable names

src/core/ext/filters/client_channel/channel_connectivity.cc

@@ -33,7 +33,7 @@ grpc_connectivity_state grpc_channel_check_connectivity_state(
   /* forward through to the underlying client channel */
   grpc_channel_element* client_channel_elem =
       grpc_channel_stack_last_element(grpc_channel_get_channel_stack(channel));
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_connectivity_state state;
   GRPC_API_TRACE(
       "grpc_channel_check_connectivity_state(channel=%p, try_to_connect=%d)", 2,
@@ -198,7 +198,7 @@ void grpc_channel_watch_connectivity_state(
     gpr_timespec deadline, grpc_completion_queue* cq, void* tag) {
   grpc_channel_element* client_channel_elem =
       grpc_channel_stack_last_element(grpc_channel_get_channel_stack(channel));
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   state_watcher* w = (state_watcher*)gpr_malloc(sizeof(*w));
 
   GRPC_API_TRACE(

src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc

@@ -213,7 +213,7 @@ static void on_hostbyname_done_cb(void* arg, int status, int timeouts,
 static void on_srv_query_done_cb(void* arg, int status, int timeouts,
                                  unsigned char* abuf, int alen) {
   grpc_ares_request* r = (grpc_ares_request*)arg;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   gpr_log(GPR_DEBUG, "on_query_srv_done_cb");
   if (status == ARES_SUCCESS) {
     gpr_log(GPR_DEBUG, "on_query_srv_done_cb ARES_SUCCESS");

src/core/ext/transport/chttp2/client/insecure/channel_create.cc

@@ -80,7 +80,7 @@ static grpc_client_channel_factory client_channel_factory = {
 grpc_channel* grpc_insecure_channel_create(const char* target,
                                            const grpc_channel_args* args,
                                            void* reserved) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_API_TRACE(
       "grpc_insecure_channel_create(target=%s, args=%p, reserved=%p)", 3,
       (target, args, reserved));

src/core/ext/transport/chttp2/client/insecure/channel_create_posix.cc

@@ -37,7 +37,7 @@
 
 grpc_channel* grpc_insecure_channel_create_from_fd(
     const char* target, int fd, const grpc_channel_args* args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_API_TRACE("grpc_insecure_channel_create(target=%p, fd=%d, args=%p)", 3,
                  (target, fd, args));
 

src/core/ext/transport/chttp2/client/secure/secure_channel_create.cc

@@ -190,7 +190,7 @@ grpc_channel* grpc_secure_channel_create(grpc_channel_credentials* creds,
                                          const char* target,
                                          const grpc_channel_args* args,
                                          void* reserved) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_API_TRACE(
       "grpc_secure_channel_create(creds=%p, target=%s, args=%p, "
       "reserved=%p)",

src/core/ext/transport/chttp2/server/insecure/server_chttp2.cc

@@ -26,7 +26,7 @@
 #include "src/core/lib/surface/server.h"
 
 int grpc_server_add_insecure_http2_port(grpc_server* server, const char* addr) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   int port_num = 0;
   GRPC_API_TRACE("grpc_server_add_insecure_http2_port(server=%p, addr=%s)", 2,
                  (server, addr));

src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.cc

@@ -38,7 +38,7 @@ void grpc_server_add_insecure_channel_from_fd(grpc_server* server,
                                               void* reserved, int fd) {
   GPR_ASSERT(reserved == nullptr);
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   char* name;
   gpr_asprintf(&name, "fd:%d", fd);
 

src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.cc

@@ -36,7 +36,7 @@
 
 int grpc_server_add_secure_http2_port(grpc_server* server, const char* addr,
                                       grpc_server_credentials* creds) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_error* err = GRPC_ERROR_NONE;
   grpc_server_security_connector* sc = nullptr;
   int port_num = 0;

src/core/ext/transport/cronet/client/secure/cronet_channel_create.cc

@@ -49,6 +49,6 @@ GRPCAPI grpc_channel* grpc_cronet_secure_channel_create(
   grpc_transport* ct =
       grpc_create_cronet_transport(engine, target, args, reserved);
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   return grpc_channel_create(target, args, GRPC_CLIENT_DIRECT_CHANNEL, ct);
 }

src/core/ext/transport/cronet/transport/cronet_transport.cc

@@ -398,7 +398,7 @@ static void execute_from_storage(stream_obj* s) {
 */
 static void on_failed(bidirectional_stream* stream, int net_error) {
   CRONET_LOG(GPR_DEBUG, "on_failed(%p, %d)", stream, net_error);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   stream_obj* s = (stream_obj*)stream->annotation;
   gpr_mu_lock(&s->mu);
@@ -424,7 +424,7 @@ static void on_failed(bidirectional_stream* stream, int net_error) {
 */
 static void on_canceled(bidirectional_stream* stream) {
   CRONET_LOG(GPR_DEBUG, "on_canceled(%p)", stream);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   stream_obj* s = (stream_obj*)stream->annotation;
   gpr_mu_lock(&s->mu);
@@ -450,7 +450,7 @@ static void on_canceled(bidirectional_stream* stream) {
 */
 static void on_succeeded(bidirectional_stream* stream) {
   CRONET_LOG(GPR_DEBUG, "on_succeeded(%p)", stream);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   stream_obj* s = (stream_obj*)stream->annotation;
   gpr_mu_lock(&s->mu);
@@ -468,7 +468,7 @@ static void on_succeeded(bidirectional_stream* stream) {
 */
 static void on_stream_ready(bidirectional_stream* stream) {
   CRONET_LOG(GPR_DEBUG, "W: on_stream_ready(%p)", stream);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   stream_obj* s = (stream_obj*)stream->annotation;
   grpc_cronet_transport* t = (grpc_cronet_transport*)s->curr_ct;
   gpr_mu_lock(&s->mu);
@@ -498,7 +498,7 @@ static void on_response_headers_received(
     bidirectional_stream* stream,
     const bidirectional_stream_header_array* headers,
     const char* negotiated_protocol) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   CRONET_LOG(GPR_DEBUG, "R: on_response_headers_received(%p, %p, %s)", stream,
              headers, negotiated_protocol);
   stream_obj* s = (stream_obj*)stream->annotation;
@@ -550,7 +550,7 @@ static void on_response_headers_received(
   Cronet callback
 */
 static void on_write_completed(bidirectional_stream* stream, const char* data) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   stream_obj* s = (stream_obj*)stream->annotation;
   CRONET_LOG(GPR_DEBUG, "W: on_write_completed(%p, %s)", stream, data);
   gpr_mu_lock(&s->mu);
@@ -568,7 +568,7 @@ static void on_write_completed(bidirectional_stream* stream, const char* data) {
 */
 static void on_read_completed(bidirectional_stream* stream, char* data,
                               int count) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   stream_obj* s = (stream_obj*)stream->annotation;
   CRONET_LOG(GPR_DEBUG, "R: on_read_completed(%p, %p, %d)", stream, data,
              count);
@@ -610,7 +610,7 @@ static void on_read_completed(bidirectional_stream* stream, char* data,
 static void on_response_trailers_received(
     bidirectional_stream* stream,
     const bidirectional_stream_header_array* trailers) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   CRONET_LOG(GPR_DEBUG, "R: on_response_trailers_received(%p,%p)", stream,
              trailers);
   stream_obj* s = (stream_obj*)stream->annotation;

src/core/ext/transport/inproc/inproc_transport.cc

@@ -1096,7 +1096,7 @@ static grpc_endpoint* get_endpoint(grpc_transport* t) { return nullptr; }
 static void do_nothing(void* arg, grpc_error* error) {}
 
 void grpc_inproc_transport_init(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_CLOSURE_INIT(&do_nothing_closure, do_nothing, nullptr,
                     grpc_schedule_on_exec_ctx);
   g_empty_slice = grpc_slice_from_static_buffer(nullptr, 0);
@@ -1160,7 +1160,7 @@ grpc_channel* grpc_inproc_channel_create(grpc_server* server,
   GRPC_API_TRACE("grpc_inproc_channel_create(server=%p, args=%p)", 2,
                  (server, args));
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   const grpc_channel_args* server_args = grpc_server_get_channel_args(server);
 
@@ -1191,7 +1191,7 @@ grpc_channel* grpc_inproc_channel_create(grpc_server* server,
 }
 
 void grpc_inproc_transport_shutdown(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_slice_unref_internal(g_empty_slice);
   grpc_slice_unref_internal(g_fake_path_key);
   grpc_slice_unref_internal(g_fake_path_value);

src/core/lib/compression/stream_compression_gzip.cc

@@ -40,7 +40,7 @@ static bool gzip_flate(grpc_stream_compression_context_gzip* ctx,
   /* Full flush is not allowed when inflating. */
   GPR_ASSERT(!(ctx->flate == inflate && (flush == Z_FINISH)));
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   int r;
   bool eoc = false;
   size_t original_max_output_size = max_output_size;

src/core/lib/iomgr/endpoint_pair_posix.cc

@@ -54,7 +54,7 @@ grpc_endpoint_pair grpc_iomgr_create_endpoint_pair(const char* name,
   char* final_name;
   create_sockets(sv);
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   gpr_asprintf(&final_name, "%s:client", name);
   p.client = grpc_tcp_create(grpc_fd_create(sv[1], final_name), args,

src/core/lib/iomgr/endpoint_pair_windows.cc

@@ -72,7 +72,7 @@ grpc_endpoint_pair grpc_iomgr_create_endpoint_pair(
   SOCKET sv[2];
   grpc_endpoint_pair p;
   create_sockets(sv);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   p.client = grpc_tcp_create(grpc_winsocket_create(sv[1], "endpoint:client"),
                              channel_args, "endpoint:server");
   p.server = grpc_tcp_create(grpc_winsocket_create(sv[0], "endpoint:server"),

src/core/lib/iomgr/executor.cc

@@ -143,7 +143,7 @@ static void executor_thread(void* arg) {
   thread_state* ts = (thread_state*)arg;
   gpr_tls_set(&g_this_thread_state, (intptr_t)ts);
 
-  grpc_core::ExecCtx _local_exec_ctx(0);
+  grpc_core::ExecCtx exec_ctx(0);
 
   size_t subtract_depth = 0;
   for (;;) {

src/core/lib/iomgr/iocp_windows.cc

@@ -113,7 +113,7 @@ void grpc_iocp_kick(void) {
 }
 
 void grpc_iocp_flush(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_iocp_work_status work_status;
 
   do {
@@ -123,7 +123,7 @@ void grpc_iocp_flush(void) {
 }
 
 void grpc_iocp_shutdown(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   while (gpr_atm_acq_load(&g_custom_events)) {
     grpc_iocp_work(GRPC_MILLIS_INF_FUTURE);
     grpc_core::ExecCtx::Get()->Flush();

src/core/lib/iomgr/iomgr.cc

@@ -46,7 +46,7 @@ static int g_shutdown;
 static grpc_iomgr_object g_root_object;
 
 void grpc_iomgr_init() {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   g_shutdown = 0;
   gpr_mu_init(&g_mu);
   gpr_cv_init(&g_rcv);

src/core/lib/iomgr/iomgr_uv.cc

@@ -29,7 +29,7 @@
 gpr_thd_id g_init_thread;
 
 void grpc_iomgr_platform_init(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_pollset_global_init();
 
   grpc_executor_set_threading(false);

src/core/lib/iomgr/resolve_address_uv.cc

@@ -114,7 +114,7 @@ static grpc_error* handle_addrinfo_result(int status, struct addrinfo* result,
 static void getaddrinfo_callback(uv_getaddrinfo_t* req, int status,
                                  struct addrinfo* res) {
   request* r = (request*)req->data;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_error* error;
   int retry_status;
   char* port = r->port;

src/core/lib/iomgr/resource_quota.cc

@@ -621,7 +621,7 @@ void grpc_resource_quota_unref_internal(grpc_resource_quota* resource_quota) {
 
 /* Public API */
 void grpc_resource_quota_unref(grpc_resource_quota* resource_quota) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_resource_quota_unref_internal(resource_quota);
 }
 
@@ -646,7 +646,7 @@ double grpc_resource_quota_get_memory_pressure(
 /* Public API */
 void grpc_resource_quota_resize(grpc_resource_quota* resource_quota,
                                 size_t size) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   rq_resize_args* a = (rq_resize_args*)gpr_malloc(sizeof(*a));
   a->resource_quota = grpc_resource_quota_ref_internal(resource_quota);
   a->size = (int64_t)size;

src/core/lib/iomgr/tcp_client_uv.cc

@@ -76,7 +76,7 @@ static void uv_tc_on_alarm(void* acp, grpc_error* error) {
 
 static void uv_tc_on_connect(uv_connect_t* req, int status) {
   grpc_uv_tcp_connect* connect = (grpc_uv_tcp_connect*)req->data;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_error* error = GRPC_ERROR_NONE;
   int done;
   grpc_closure* closure = connect->closure;

src/core/lib/iomgr/tcp_server_uv.cc

@@ -137,7 +137,7 @@ static void finish_shutdown(grpc_tcp_server* s) {
 
 static void handle_close_callback(uv_handle_t* handle) {
   grpc_tcp_listener* sp = (grpc_tcp_listener*)handle->data;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   sp->server->open_ports--;
   if (sp->server->open_ports == 0 && sp->server->shutdown) {
     finish_shutdown(sp->server);
@@ -174,7 +174,7 @@ void grpc_tcp_server_unref(grpc_tcp_server* s) {
   GRPC_UV_ASSERT_SAME_THREAD();
   if (gpr_unref(&s->refs)) {
     /* Complete shutdown_starting work before destroying. */
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     GRPC_CLOSURE_LIST_SCHED(&s->shutdown_starting);
     grpc_core::ExecCtx::Get()->Flush();
     tcp_server_destroy(s);
@@ -223,7 +223,7 @@ static void finish_accept(grpc_tcp_listener* sp) {
 
 static void on_connect(uv_stream_t* server, int status) {
   grpc_tcp_listener* sp = (grpc_tcp_listener*)server->data;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   if (status < 0) {
     switch (status) {

src/core/lib/iomgr/tcp_uv.cc

@@ -111,14 +111,14 @@ static void tcp_ref(grpc_tcp* tcp) { gpr_ref(&tcp->refcount); }
 #endif
 
 static void uv_close_callback(uv_handle_t* handle) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_tcp* tcp = (grpc_tcp*)handle->data;
   TCP_UNREF(tcp, "destroy");
 }
 
 static void alloc_uv_buf(uv_handle_t* handle, size_t suggested_size,
                          uv_buf_t* buf) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_tcp* tcp = (grpc_tcp*)handle->data;
   (void)suggested_size;
   /* Before calling uv_read_start, we allocate a buffer with exactly one slice
@@ -151,7 +151,7 @@ static void call_read_cb(grpc_tcp* tcp, grpc_error* error) {
 static void read_callback(uv_stream_t* stream, ssize_t nread,
                           const uv_buf_t* buf) {
   grpc_error* error;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_tcp* tcp = (grpc_tcp*)stream->data;
   grpc_slice_buffer garbage;
   if (nread == 0) {
@@ -228,7 +228,7 @@ static void uv_endpoint_read(grpc_endpoint* ep, grpc_slice_buffer* read_slices,
 static void write_callback(uv_write_t* req, int status) {
   grpc_tcp* tcp = (grpc_tcp*)req->data;
   grpc_error* error;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_closure* cb = tcp->write_cb;
   tcp->write_cb = NULL;
   TCP_UNREF(tcp, "write");
@@ -372,7 +372,7 @@ grpc_endpoint* grpc_tcp_create(uv_tcp_t* handle,
                                grpc_resource_quota* resource_quota,
                                char* peer_string) {
   grpc_tcp* tcp = (grpc_tcp*)gpr_malloc(sizeof(grpc_tcp));
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   if (grpc_tcp_trace.enabled()) {
     gpr_log(GPR_DEBUG, "Creating TCP endpoint %p", tcp);

src/core/lib/iomgr/timer_manager.cc

@@ -98,7 +98,7 @@ static void start_timer_thread_and_unlock(void) {
 }
 
 void grpc_timer_manager_tick() {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_millis next = GRPC_MILLIS_INF_FUTURE;
   grpc_timer_check(&next);
 }
@@ -273,7 +273,7 @@ static void timer_thread_cleanup(completed_thread* ct) {
 static void timer_thread(void* completed_thread_ptr) {
   // this threads exec_ctx: we try to run things through to completion here
   // since it's easy to spin up new threads
-  grpc_core::ExecCtx _local_exec_ctx(0);
+  grpc_core::ExecCtx exec_ctx(0);
   timer_main_loop();
 
   timer_thread_cleanup((completed_thread*)completed_thread_ptr);

src/core/lib/iomgr/timer_uv.cc

@@ -42,7 +42,7 @@ static void stop_uv_timer(uv_timer_t* handle) {
 
 void run_expired_timer(uv_timer_t* handle) {
   grpc_timer* timer = (grpc_timer*)handle->data;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_UV_ASSERT_SAME_THREAD();
   GPR_ASSERT(timer->pending);
   timer->pending = 0;

src/core/lib/security/context/security_context.cc

@@ -36,7 +36,7 @@ grpc_core::DebugOnlyTraceFlag grpc_trace_auth_context_refcount(
 
 grpc_call_error grpc_call_set_credentials(grpc_call* call,
                                           grpc_call_credentials* creds) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_client_security_context* ctx = nullptr;
   GRPC_API_TRACE("grpc_call_set_credentials(call=%p, creds=%p)", 2,
                  (call, creds));
@@ -85,7 +85,7 @@ grpc_client_security_context* grpc_client_security_context_create(void) {
 }
 
 void grpc_client_security_context_destroy(void* ctx) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_client_security_context* c = (grpc_client_security_context*)ctx;
   grpc_call_credentials_unref(c->creds);
   GRPC_AUTH_CONTEXT_UNREF(c->auth_context, "client_security_context");

src/core/lib/security/credentials/credentials.cc

@@ -72,7 +72,7 @@ void grpc_channel_credentials_unref(grpc_channel_credentials* creds) {
 
 void grpc_channel_credentials_release(grpc_channel_credentials* creds) {
   GRPC_API_TRACE("grpc_channel_credentials_release(creds=%p)", 1, (creds));
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_channel_credentials_unref(creds);
 }
 
@@ -94,7 +94,7 @@ void grpc_call_credentials_unref(grpc_call_credentials* creds) {
 
 void grpc_call_credentials_release(grpc_call_credentials* creds) {
   GRPC_API_TRACE("grpc_call_credentials_release(creds=%p)", 1, (creds));
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_call_credentials_unref(creds);
 }
 
@@ -211,7 +211,7 @@ void grpc_server_credentials_unref(grpc_server_credentials* creds) {
 
 void grpc_server_credentials_release(grpc_server_credentials* creds) {
   GRPC_API_TRACE("grpc_server_credentials_release(creds=%p)", 1, (creds));
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_server_credentials_unref(creds);
 }
 

src/core/lib/security/credentials/google_default/google_default_credentials.cc

@@ -221,7 +221,7 @@ grpc_channel_credentials* grpc_google_default_credentials_create(void) {
   grpc_error* error = GRPC_ERROR_CREATE_FROM_STATIC_STRING(
       "Failed to create Google credentials");
   grpc_error* err;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   GRPC_API_TRACE("grpc_google_default_credentials_create(void)", 0, ());
 
@@ -291,7 +291,7 @@ end:
 }
 
 void grpc_flush_cached_google_default_credentials(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   gpr_once_init(&g_once, init_default_credentials);
   gpr_mu_lock(&g_state_mu);
   if (default_credentials != nullptr) {

src/core/lib/security/credentials/iam/iam_credentials.cc

@@ -54,7 +54,7 @@ static grpc_call_credentials_vtable iam_vtable = {
 
 grpc_call_credentials* grpc_google_iam_credentials_create(
     const char* token, const char* authority_selector, void* reserved) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_API_TRACE(
       "grpc_iam_credentials_create(token=%s, authority_selector=%s, "
       "reserved=%p)",

src/core/lib/security/credentials/jwt/jwt_credentials.cc

@@ -181,7 +181,7 @@ grpc_call_credentials* grpc_service_account_jwt_access_credentials_create(
     gpr_free(clean_json);
   }
   GPR_ASSERT(reserved == nullptr);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_call_credentials* creds =
       grpc_service_account_jwt_access_credentials_create_from_auth_json_key(
           grpc_auth_json_key_create_from_string(json_key), token_lifetime);

src/core/lib/security/credentials/jwt/jwt_verifier.cc

@@ -347,7 +347,7 @@ static verifier_cb_ctx* verifier_cb_ctx_create(
     grpc_jwt_claims* claims, const char* audience, grpc_slice signature,
     const char* signed_jwt, size_t signed_jwt_len, void* user_data,
     grpc_jwt_verification_done_cb cb) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   verifier_cb_ctx* ctx = (verifier_cb_ctx*)gpr_zalloc(sizeof(verifier_cb_ctx));
   ctx->verifier = verifier;
   ctx->pollent = grpc_polling_entity_create_from_pollset(pollset);

src/core/lib/security/credentials/oauth2/oauth2_credentials.cc

@@ -515,7 +515,7 @@ grpc_call_credentials* grpc_access_token_credentials_create(
   gpr_ref_init(&c->base.refcount, 1);
   char* token_md_value;
   gpr_asprintf(&token_md_value, "Bearer %s", access_token);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   c->access_token_md = grpc_mdelem_from_slices(
       grpc_slice_from_static_string(GRPC_AUTHORIZATION_METADATA_KEY),
       grpc_slice_from_copied_string(token_md_value));

src/core/lib/security/credentials/plugin/plugin_credentials.cc

@@ -115,7 +115,7 @@ static void plugin_md_request_metadata_ready(void* request,
                                              grpc_status_code status,
                                              const char* error_details) {
   /* called from application code */
-  grpc_core::ExecCtx _local_exec_ctx(GRPC_EXEC_CTX_FLAG_IS_FINISHED |
+  grpc_core::ExecCtx exec_ctx(GRPC_EXEC_CTX_FLAG_IS_FINISHED |
                               GRPC_EXEC_CTX_FLAG_THREAD_RESOURCE_LOOP);
   grpc_plugin_credentials_pending_request* r =
       (grpc_plugin_credentials_pending_request*)request;

src/core/lib/security/transport/security_handshaker.cc

@@ -271,7 +271,7 @@ static void on_handshake_next_done_grpc_wrapper(
   security_handshaker* h = (security_handshaker*)user_data;
   // This callback will be invoked by TSI in a non-grpc thread, so it's
   // safe to create our own exec_ctx here.
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   gpr_mu_lock(&h->mu);
   grpc_error* error = on_handshake_next_done_locked(
       h, result, bytes_to_send, bytes_to_send_size, handshaker_result);

src/core/lib/security/transport/server_auth_filter.cc

@@ -118,7 +118,7 @@ static void on_md_processing_done(
     grpc_status_code status, const char* error_details) {
   grpc_call_element* elem = (grpc_call_element*)user_data;
   call_data* calld = (call_data*)elem->call_data;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   // If the call was not cancelled while we were in flight, process the result.
   if (gpr_atm_full_cas(&calld->state, (gpr_atm)STATE_INIT,
                        (gpr_atm)STATE_DONE)) {

src/core/lib/slice/slice.cc

@@ -67,7 +67,7 @@ grpc_slice grpc_slice_ref(grpc_slice slice) {
 
 /* Public API */
 void grpc_slice_unref(grpc_slice slice) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_slice_unref_internal(slice);
 }
 

src/core/lib/slice/slice_buffer.cc

@@ -73,7 +73,7 @@ void grpc_slice_buffer_destroy_internal(grpc_slice_buffer* sb) {
 }
 
 void grpc_slice_buffer_destroy(grpc_slice_buffer* sb) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_slice_buffer_destroy_internal(sb);
 }
 
@@ -172,7 +172,7 @@ void grpc_slice_buffer_reset_and_unref_internal(grpc_slice_buffer* sb) {
 }
 
 void grpc_slice_buffer_reset_and_unref(grpc_slice_buffer* sb) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_slice_buffer_reset_and_unref_internal(sb);
 }
 

src/core/lib/surface/alarm.cc

@@ -45,7 +45,7 @@ static void alarm_ref(grpc_alarm* alarm) { gpr_ref(&alarm->refs); }
 
 static void alarm_unref(grpc_alarm* alarm) {
   if (gpr_unref(&alarm->refs)) {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     if (alarm->cq != nullptr) {
       GRPC_CQ_INTERNAL_UNREF(alarm->cq, "alarm");
     }
@@ -115,7 +115,7 @@ grpc_alarm* grpc_alarm_create(void* reserved) {
 
 void grpc_alarm_set(grpc_alarm* alarm, grpc_completion_queue* cq,
                     gpr_timespec deadline, void* tag, void* reserved) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   GRPC_CQ_INTERNAL_REF(cq, "alarm");
   alarm->cq = cq;
@@ -127,7 +127,7 @@ void grpc_alarm_set(grpc_alarm* alarm, grpc_completion_queue* cq,
 }
 
 void grpc_alarm_cancel(grpc_alarm* alarm, void* reserved) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_timer_cancel(&alarm->alarm);
 }
 

src/core/lib/surface/byte_buffer.cc

@@ -71,7 +71,7 @@ grpc_byte_buffer* grpc_byte_buffer_copy(grpc_byte_buffer* bb) {
 
 void grpc_byte_buffer_destroy(grpc_byte_buffer* bb) {
   if (!bb) return;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   switch (bb->type) {
     case GRPC_BB_RAW:
       grpc_slice_buffer_destroy_internal(&bb->data.raw.slice_buffer);

src/core/lib/surface/byte_buffer_reader.cc

@@ -42,7 +42,7 @@ static int is_compressed(grpc_byte_buffer* buffer) {
 
 int grpc_byte_buffer_reader_init(grpc_byte_buffer_reader* reader,
                                  grpc_byte_buffer* buffer) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_slice_buffer decompressed_slices_buffer;
   reader->buffer_in = buffer;
   switch (reader->buffer_in->type) {
@@ -110,7 +110,7 @@ grpc_slice grpc_byte_buffer_reader_readall(grpc_byte_buffer_reader* reader) {
   grpc_slice out_slice = GRPC_SLICE_MALLOC(input_size);
   uint8_t* const outbuf = GRPC_SLICE_START_PTR(out_slice); /* just an alias */
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   while (grpc_byte_buffer_reader_next(reader, &in_slice) != 0) {
     const size_t slice_length = GRPC_SLICE_LENGTH(in_slice);
     memcpy(&(outbuf[bytes_read]), GRPC_SLICE_START_PTR(in_slice), slice_length);

src/core/lib/surface/call.cc

@@ -560,7 +560,7 @@ void grpc_call_unref(grpc_call* c) {
   if (!gpr_unref(&c->ext_ref)) return;
 
   child_call* cc = c->child;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   GPR_TIMER_BEGIN("grpc_call_unref", 0);
   GRPC_API_TRACE("grpc_call_unref(c=%p)", 1, (c));
@@ -601,7 +601,7 @@ void grpc_call_unref(grpc_call* c) {
 grpc_call_error grpc_call_cancel(grpc_call* call, void* reserved) {
   GRPC_API_TRACE("grpc_call_cancel(call=%p, reserved=%p)", 2, (call, reserved));
   GPR_ASSERT(!reserved);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   cancel_with_error(call, STATUS_FROM_API_OVERRIDE, GRPC_ERROR_CANCELLED);
 
   return GRPC_CALL_OK;
@@ -651,7 +651,7 @@ grpc_call_error grpc_call_cancel_with_status(grpc_call* c,
                                              grpc_status_code status,
                                              const char* description,
                                              void* reserved) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_API_TRACE(
       "grpc_call_cancel_with_status("
       "c=%p, status=%d, description=%s, reserved=%p)",
@@ -2038,7 +2038,7 @@ done_with_error:
 
 grpc_call_error grpc_call_start_batch(grpc_call* call, const grpc_op* ops,
                                       size_t nops, void* tag, void* reserved) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_call_error err;
 
   GRPC_API_TRACE(

src/core/lib/surface/call_details.cc

@@ -34,7 +34,7 @@ void grpc_call_details_init(grpc_call_details* cd) {
 
 void grpc_call_details_destroy(grpc_call_details* cd) {
   GRPC_API_TRACE("grpc_call_details_destroy(cd=%p)", 1, (cd));
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_slice_unref_internal(cd->method);
   grpc_slice_unref_internal(cd->host);
 }

src/core/lib/surface/channel.cc

@@ -248,7 +248,7 @@ char* grpc_channel_get_target(grpc_channel* channel) {
 
 void grpc_channel_get_info(grpc_channel* channel,
                            const grpc_channel_info* channel_info) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_channel_element* elem =
       grpc_channel_stack_element(CHANNEL_STACK_FROM_CHANNEL(channel), 0);
   elem->filter->get_channel_info(elem, channel_info);
@@ -296,7 +296,7 @@ grpc_call* grpc_channel_create_call(grpc_channel* channel,
                                     grpc_slice method, const grpc_slice* host,
                                     gpr_timespec deadline, void* reserved) {
   GPR_ASSERT(!reserved);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_call* call = grpc_channel_create_call_internal(
       channel, parent_call, propagation_mask, cq, nullptr,
       grpc_mdelem_from_slices(GRPC_MDSTR_PATH, grpc_slice_ref_internal(method)),
@@ -329,7 +329,7 @@ void* grpc_channel_register_call(grpc_channel* channel, const char* method,
       "grpc_channel_register_call(channel=%p, method=%s, host=%s, reserved=%p)",
       4, (channel, method, host, reserved));
   GPR_ASSERT(!reserved);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   rc->path = grpc_mdelem_from_slices(
       GRPC_MDSTR_PATH,
@@ -364,7 +364,7 @@ grpc_call* grpc_channel_create_registered_call(
        registered_call_handle, deadline.tv_sec, deadline.tv_nsec,
        (int)deadline.clock_type, reserved));
   GPR_ASSERT(!reserved);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_call* call = grpc_channel_create_call_internal(
       channel, parent_call, propagation_mask, completion_queue, nullptr,
       GRPC_MDELEM_REF(rc->path), GRPC_MDELEM_REF(rc->authority),
@@ -407,7 +407,7 @@ static void destroy_channel(void* arg, grpc_error* error) {
 void grpc_channel_destroy(grpc_channel* channel) {
   grpc_transport_op* op = grpc_make_transport_op(nullptr);
   grpc_channel_element* elem;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_API_TRACE("grpc_channel_destroy(channel=%p)", 1, (channel));
   op->disconnect_with_error =
       GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Destroyed");

src/core/lib/surface/channel_ping.cc

@@ -51,7 +51,7 @@ void grpc_channel_ping(grpc_channel* channel, grpc_completion_queue* cq,
   ping_result* pr = (ping_result*)gpr_malloc(sizeof(*pr));
   grpc_channel_element* top_elem =
       grpc_channel_stack_element(grpc_channel_get_channel_stack(channel), 0);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GPR_ASSERT(reserved == nullptr);
   pr->tag = tag;
   pr->cq = cq;

src/core/lib/surface/completion_queue.cc

@@ -353,7 +353,7 @@ int grpc_completion_queue_thread_local_cache_flush(grpc_completion_queue* cq,
   if (storage != nullptr &&
       (grpc_completion_queue*)gpr_tls_get(&g_cached_cq) == cq) {
     *tag = storage->tag;
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     *ok = (storage->next & (uintptr_t)(1)) == 1;
     storage->done(storage->done_arg, storage);
     ret = 1;
@@ -389,7 +389,7 @@ static bool cq_event_queue_push(grpc_cq_event_queue* q, grpc_cq_completion* c) {
 
 static grpc_cq_completion* cq_event_queue_pop(grpc_cq_event_queue* q) {
   grpc_cq_completion* c = nullptr;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   if (gpr_spinlock_trylock(&q->queue_lock)) {
     GRPC_STATS_INC_CQ_EV_QUEUE_TRYLOCK_SUCCESSES();
@@ -434,7 +434,7 @@ grpc_completion_queue* grpc_completion_queue_create_internal(
   const cq_poller_vtable* poller_vtable =
       &g_poller_vtable_by_poller_type[polling_type];
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_STATS_INC_CQS_CREATED();
 
   cq = (grpc_completion_queue*)gpr_zalloc(sizeof(grpc_completion_queue) +
@@ -868,7 +868,7 @@ static grpc_event cq_next(grpc_completion_queue* cq, gpr_timespec deadline,
       nullptr,
       nullptr,
       true};
-  ExecCtxNext _local_exec_ctx(&is_finished_arg);
+  ExecCtxNext exec_ctx(&is_finished_arg);
   for (;;) {
     grpc_millis iteration_deadline = deadline_millis;
 
@@ -1111,7 +1111,7 @@ static grpc_event cq_pluck(grpc_completion_queue* cq, void* tag,
       nullptr,
       tag,
       true};
-  ExecCtxPluck _local_exec_ctx(&is_finished_arg);
+  ExecCtxPluck exec_ctx(&is_finished_arg);
   for (;;) {
     if (is_finished_arg.stolen_completion != nullptr) {
       gpr_mu_unlock(cq->mu);
@@ -1240,7 +1240,7 @@ static void cq_shutdown_pluck(grpc_completion_queue* cq) {
 /* Shutdown simply drops a ref that we reserved at creation time; if we drop
    to zero here, then enter shutdown mode and wake up any waiters */
 void grpc_completion_queue_shutdown(grpc_completion_queue* cq) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GPR_TIMER_BEGIN("grpc_completion_queue_shutdown", 0);
   GRPC_API_TRACE("grpc_completion_queue_shutdown(cq=%p)", 1, (cq));
   cq->vtable->shutdown(cq);
@@ -1253,7 +1253,7 @@ void grpc_completion_queue_destroy(grpc_completion_queue* cq) {
   GPR_TIMER_BEGIN("grpc_completion_queue_destroy", 0);
   grpc_completion_queue_shutdown(cq);
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_CQ_INTERNAL_UNREF(cq, "destroy");
 
   GPR_TIMER_END("grpc_completion_queue_destroy", 0);

src/core/lib/surface/init.cc

@@ -157,7 +157,7 @@ void grpc_shutdown(void) {
   gpr_mu_lock(&g_init_mu);
   if (--g_initializations == 0) {
     {
-      grpc_core::ExecCtx _local_exec_ctx(0);
+      grpc_core::ExecCtx exec_ctx(0);
       {
         grpc_executor_shutdown();
         grpc_timer_manager_set_threading(

src/core/lib/surface/lame_client.cc

@@ -154,7 +154,7 @@ extern "C" const grpc_channel_filter grpc_lame_filter = {
 grpc_channel* grpc_lame_client_channel_create(const char* target,
                                               grpc_status_code error_code,
                                               const char* error_message) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_channel_element* elem;
   grpc_channel* channel =
       grpc_channel_create(target, nullptr, GRPC_CLIENT_LAME_CHANNEL, nullptr);

src/core/lib/surface/server.cc

@@ -1015,7 +1015,7 @@ static void start_listeners(void* s, grpc_error* error) {
 
 void grpc_server_start(grpc_server* server) {
   size_t i;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   GRPC_API_TRACE("grpc_server_start(server=%p)", 1, (server));
 
@@ -1161,7 +1161,7 @@ void grpc_server_shutdown_and_notify(grpc_server* server,
   listener* l;
   shutdown_tag* sdt;
   channel_broadcaster broadcaster;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   GRPC_API_TRACE("grpc_server_shutdown_and_notify(server=%p, cq=%p, tag=%p)", 3,
                  (server, cq, tag));
@@ -1220,7 +1220,7 @@ void grpc_server_shutdown_and_notify(grpc_server* server,
 
 void grpc_server_cancel_all_calls(grpc_server* server) {
   channel_broadcaster broadcaster;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   GRPC_API_TRACE("grpc_server_cancel_all_calls(server=%p)", 1, (server));
 
@@ -1235,7 +1235,7 @@ void grpc_server_cancel_all_calls(grpc_server* server) {
 
 void grpc_server_destroy(grpc_server* server) {
   listener* l;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   GRPC_API_TRACE("grpc_server_destroy(server=%p)", 1, (server));
 
@@ -1317,7 +1317,7 @@ grpc_call_error grpc_server_request_call(
     grpc_completion_queue* cq_bound_to_call,
     grpc_completion_queue* cq_for_notification, void* tag) {
   grpc_call_error error;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   requested_call* rc = (requested_call*)gpr_malloc(sizeof(*rc));
   GRPC_STATS_INC_SERVER_REQUESTED_CALLS();
   GRPC_API_TRACE(
@@ -1364,7 +1364,7 @@ grpc_call_error grpc_server_request_registered_call(
     grpc_completion_queue* cq_bound_to_call,
     grpc_completion_queue* cq_for_notification, void* tag) {
   grpc_call_error error;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   requested_call* rc = (requested_call*)gpr_malloc(sizeof(*rc));
   registered_method* rm = (registered_method*)rmp;
   GRPC_STATS_INC_SERVER_REQUESTED_CALLS();

src/cpp/common/channel_arguments.cc

@@ -67,7 +67,7 @@ ChannelArguments::ChannelArguments(const ChannelArguments& other)
 }
 
 ChannelArguments::~ChannelArguments() {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   for (auto it = args_.begin(); it != args_.end(); ++it) {
     if (it->type == GRPC_ARG_POINTER) {
       it->value.pointer.vtable->destroy(it->value.pointer.p);
@@ -95,7 +95,7 @@ void ChannelArguments::SetSocketMutator(grpc_socket_mutator* mutator) {
   }
   grpc_arg mutator_arg = grpc_socket_mutator_to_arg(mutator);
   bool replaced = false;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   for (auto it = args_.begin(); it != args_.end(); ++it) {
     if (it->type == mutator_arg.type &&
         grpc::string(it->key) == grpc::string(mutator_arg.key)) {

src/objective-c/tests/CoreCronetEnd2EndTests/CoreCronetEnd2EndTests.mm

@@ -110,7 +110,7 @@ static void chttp2_tear_down_secure_fullstack(grpc_end2end_test_fixture *f) {
 
 static void cronet_init_client_simple_ssl_secure_fullstack(
     grpc_end2end_test_fixture *f, grpc_channel_args *client_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   stream_engine *cronetEngine = [Cronet getGlobalEngine];
 
   grpc_channel_args *new_client_args = grpc_channel_args_copy(client_args);

test/core/backoff/backoff_test.cc

@@ -33,7 +33,7 @@ static void test_constant_backoff(void) {
   const grpc_millis max_backoff = 1000;
   grpc_backoff_init(&backoff, initial_backoff, multiplier, jitter,
                     min_connect_timeout, max_backoff);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_backoff_result next_deadlines = grpc_backoff_begin(&backoff);
   GPR_ASSERT(next_deadlines.current_deadline -
                  grpc_core::ExecCtx::Get()->Now() ==
@@ -62,7 +62,7 @@ static void test_min_connect(void) {
   const grpc_millis max_backoff = 1000;
   grpc_backoff_init(&backoff, initial_backoff, multiplier, jitter,
                     min_connect_timeout, max_backoff);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_backoff_result next = grpc_backoff_begin(&backoff);
   // Because the min_connect_timeout > initial_backoff, current_deadline is used
   // as the deadline for the current attempt.
@@ -85,7 +85,7 @@ static void test_no_jitter_backoff(void) {
                     min_connect_timeout, max_backoff);
   // x_1 = 2
   // x_n = 2**i + x_{i-1} ( = 2**(n+1) - 2 )
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_core::ExecCtx::Get()->TestOnlySetNow(0);
   grpc_backoff_result next_deadlines = grpc_backoff_begin(&backoff);
   GPR_ASSERT(next_deadlines.current_deadline ==
@@ -141,7 +141,7 @@ static void test_jitter_backoff(void) {
 
   backoff.rng_state = 0;  // force consistent PRNG
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_backoff_result next_deadlines = grpc_backoff_begin(&backoff);
   GPR_ASSERT(next_deadlines.current_deadline -
                  grpc_core::ExecCtx::Get()->Now() ==

test/core/bad_client/bad_client.cc

@@ -57,7 +57,7 @@ static void done_write(void* arg, grpc_error* error) {
 
 static void server_setup_transport(void* ts, grpc_transport* transport) {
   thd_args* a = (thd_args*)ts;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_server_setup_transport(a->server, transport, nullptr,
                               grpc_server_get_channel_args(a->server));
 }
@@ -80,7 +80,7 @@ void grpc_run_bad_client_test(
       grpc_slice_from_copied_buffer(client_payload, client_payload_length);
   grpc_slice_buffer outgoing;
   grpc_closure done_write_closure;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_completion_queue* shutdown_cq;
 
   if (client_payload_length < 4 * 1024) {

test/core/channel/channel_args_test.cc

@@ -26,7 +26,7 @@
 #include "test/core/util/test_config.h"
 
 static void test_create(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   grpc_arg arg_int;
   grpc_arg arg_string;
@@ -59,7 +59,7 @@ static void test_create(void) {
 }
 
 static void test_set_compression_algorithm(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_channel_args* ch_args;
 
   ch_args =
@@ -73,7 +73,7 @@ static void test_set_compression_algorithm(void) {
 }
 
 static void test_compression_algorithm_states(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_channel_args *ch_args, *ch_args_wo_gzip, *ch_args_wo_gzip_deflate;
   unsigned states_bitset;
   size_t i;
@@ -134,7 +134,7 @@ static void test_set_socket_mutator(void) {
   GPR_ASSERT(ch_args->args[0].type == GRPC_ARG_POINTER);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(ch_args);
   }
 }

test/core/channel/channel_stack_test.cc

@@ -95,7 +95,7 @@ static void test_create_channel_stack(void) {
   grpc_channel_args chan_args;
   int* channel_data;
   int* call_data;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_slice path = grpc_slice_from_static_string("/service/method");
 
   arg.type = GRPC_ARG_INTEGER;

test/core/channel/minimal_stack_is_minimal_test.cc

@@ -125,7 +125,7 @@ static int check_stack(const char* file, int line, const char* transport_name,
     grpc_channel_stack_builder_set_transport(builder, &fake_transport);
   }
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_stack_builder_set_channel_arguments(builder, channel_args);
     GPR_ASSERT(grpc_channel_init_create_stack(
         builder, (grpc_channel_stack_type)channel_stack_type));
@@ -210,7 +210,7 @@ static int check_stack(const char* file, int line, const char* transport_name,
   gpr_free(expect);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_stack_builder_destroy(builder);
     grpc_channel_args_destroy(channel_args);
   }

test/core/client_channel/lb_policies_test.cc

@@ -651,7 +651,7 @@ static void test_get_channel_info() {
   grpc_channel_args* args = grpc_channel_args_copy_and_add(nullptr, &arg, 1);
   channel = grpc_insecure_channel_create("ipv4:127.0.0.1:1234", args, nullptr);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(args);
   }
   // Ensures that resolver returns.
@@ -958,7 +958,7 @@ static void verify_rebirth_round_robin(const servers_fixture* f,
 }
 
 int main(int argc, char** argv) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   test_spec* spec;
   size_t i;
   const size_t NUM_ITERS = 10;

test/core/client_channel/parse_address_test.cc

@@ -34,7 +34,7 @@
 #ifdef GRPC_HAVE_UNIX_SOCKET
 
 static void test_grpc_parse_unix(const char* uri_text, const char* pathname) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_uri* uri = grpc_uri_parse(uri_text, 0);
   grpc_resolved_address addr;
 
@@ -54,7 +54,7 @@ static void test_grpc_parse_unix(const char* uri_text, const char* pathname) {}
 
 static void test_grpc_parse_ipv4(const char* uri_text, const char* host,
                                  unsigned short port) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_uri* uri = grpc_uri_parse(uri_text, 0);
   grpc_resolved_address addr;
   char ntop_buf[INET_ADDRSTRLEN];
@@ -72,7 +72,7 @@ static void test_grpc_parse_ipv4(const char* uri_text, const char* host,
 
 static void test_grpc_parse_ipv6(const char* uri_text, const char* host,
                                  unsigned short port, uint32_t scope_id) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_uri* uri = grpc_uri_parse(uri_text, 0);
   grpc_resolved_address addr;
   char ntop_buf[INET6_ADDRSTRLEN];

test/core/client_channel/resolvers/dns_resolver_connectivity_test.cc

@@ -105,7 +105,7 @@ static bool wait_loop(int deadline_seconds, gpr_event* ev) {
     if (gpr_event_wait(ev, grpc_timeout_seconds_to_deadline(1))) return true;
     deadline_seconds--;
 
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_timer_check(nullptr);
   }
   return false;
@@ -148,7 +148,7 @@ int main(int argc, char** argv) {
   grpc_channel_args* result = (grpc_channel_args*)1;
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_resolver* resolver = create_resolver("dns:test");
     gpr_event ev1;
     gpr_event_init(&ev1);

test/core/client_channel/resolvers/dns_resolver_test.cc

@@ -28,7 +28,7 @@
 static grpc_combiner* g_combiner;
 
 static void test_succeeds(grpc_resolver_factory* factory, const char* string) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_uri* uri = grpc_uri_parse(string, 0);
   grpc_resolver_args args;
   grpc_resolver* resolver;
@@ -45,7 +45,7 @@ static void test_succeeds(grpc_resolver_factory* factory, const char* string) {
 }
 
 static void test_fails(grpc_resolver_factory* factory, const char* string) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_uri* uri = grpc_uri_parse(string, 0);
   grpc_resolver_args args;
   grpc_resolver* resolver;
@@ -80,7 +80,7 @@ int main(int argc, char** argv) {
 
   grpc_resolver_factory_unref(dns);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     GRPC_COMBINER_UNREF(g_combiner, "test");
   }
   grpc_shutdown();

test/core/client_channel/resolvers/fake_resolver_test.cc

@@ -72,7 +72,7 @@ void on_resolution_cb(void* arg, grpc_error* error) {
 }
 
 static void test_fake_resolver() {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_combiner* combiner = grpc_combiner_create();
   // Create resolver.
   grpc_fake_resolver_response_generator* response_generator =

test/core/client_channel/resolvers/sockaddr_resolver_test.cc

@@ -41,7 +41,7 @@ void on_resolution_cb(void* arg, grpc_error* error) {
 }
 
 static void test_succeeds(grpc_resolver_factory* factory, const char* string) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_uri* uri = grpc_uri_parse(string, 0);
   grpc_resolver_args args;
   grpc_resolver* resolver;
@@ -68,7 +68,7 @@ static void test_succeeds(grpc_resolver_factory* factory, const char* string) {
 }
 
 static void test_fails(grpc_resolver_factory* factory, const char* string) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_uri* uri = grpc_uri_parse(string, 0);
   grpc_resolver_args args;
   grpc_resolver* resolver;
@@ -111,7 +111,7 @@ int main(int argc, char** argv) {
   grpc_resolver_factory_unref(ipv6);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     GRPC_COMBINER_UNREF(g_combiner, "test");
   }
   grpc_shutdown();

test/core/client_channel/uri_fuzzer_test.cc

@@ -37,7 +37,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   grpc_init();
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_uri* x;
     if ((x = grpc_uri_parse(s, 1))) {
       grpc_uri_destroy(x);

test/core/client_channel/uri_parser_test.cc

@@ -29,7 +29,7 @@
 static void test_succeeds(const char* uri_text, const char* scheme,
                           const char* authority, const char* path,
                           const char* query, const char* fragment) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_uri* uri = grpc_uri_parse(uri_text, 0);
   GPR_ASSERT(uri);
   GPR_ASSERT(0 == strcmp(scheme, uri->scheme));
@@ -42,13 +42,13 @@ static void test_succeeds(const char* uri_text, const char* scheme,
 }
 
 static void test_fails(const char* uri_text) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GPR_ASSERT(nullptr == grpc_uri_parse(uri_text, 0));
 }
 
 static void test_query_parts() {
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     const char* uri_text = "http://foo/path?a&b=B&c=&#frag";
     grpc_uri* uri = grpc_uri_parse(uri_text, 0);
     GPR_ASSERT(uri);
@@ -82,7 +82,7 @@ static void test_query_parts() {
   }
   {
     /* test the current behavior of multiple query part values */
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     const char* uri_text = "http://auth/path?foo=bar=baz&foobar==";
     grpc_uri* uri = grpc_uri_parse(uri_text, 0);
     GPR_ASSERT(uri);
@@ -100,7 +100,7 @@ static void test_query_parts() {
   }
   {
     /* empty query */
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     const char* uri_text = "http://foo/path";
     grpc_uri* uri = grpc_uri_parse(uri_text, 0);
     GPR_ASSERT(uri);

test/core/compression/algorithm_test.cc

@@ -39,7 +39,7 @@ static void test_algorithm_mesh(void) {
     grpc_compression_algorithm parsed;
     grpc_slice mdstr;
     grpc_mdelem mdelem;
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     GPR_ASSERT(
         grpc_compression_algorithm_name((grpc_compression_algorithm)i, &name));
     GPR_ASSERT(grpc_compression_algorithm_parse(
@@ -61,7 +61,7 @@ static void test_algorithm_mesh(void) {
 }
 
 static void test_algorithm_failure(void) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_slice mdstr;
 
   gpr_log(GPR_DEBUG, "test_algorithm_failure");

test/core/compression/message_compress_test.cc

@@ -70,7 +70,7 @@ static void assert_passthrough(grpc_slice value,
   grpc_split_slices_to_buffer(uncompressed_split_mode, &value, 1, &input);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     was_compressed = grpc_msg_compress(algorithm, &input, &compressed_raw);
   }
   GPR_ASSERT(input.count > 0);
@@ -90,7 +90,7 @@ static void assert_passthrough(grpc_slice value,
   grpc_split_slice_buffer(compressed_split_mode, &compressed_raw, &compressed);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     GPR_ASSERT(grpc_msg_decompress(
         was_compressed ? algorithm : GRPC_COMPRESS_NONE, &compressed, &output));
   }
@@ -152,7 +152,7 @@ static void test_tiny_data_compress(void) {
 
   for (int i = 0; i < GRPC_COMPRESS_ALGORITHMS_COUNT; i++) {
     if (i == GRPC_COMPRESS_NONE) continue;
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     GPR_ASSERT(0 ==
                grpc_msg_compress(static_cast<grpc_compression_algorithm>(i),
                                  &input, &output));
@@ -176,7 +176,7 @@ static void test_bad_decompression_data_crc(void) {
   grpc_slice_buffer_init(&output);
   grpc_slice_buffer_add(&input, create_test_value(ONE_MB_A));
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   /* compress it */
   grpc_msg_compress(GRPC_COMPRESS_GZIP, &input, &corrupted);
   /* corrupt the output by smashing the CRC */
@@ -205,7 +205,7 @@ static void test_bad_decompression_data_trailing_garbage(void) {
                   "\x78\xda\x63\x60\x60\x60\x00\x00\x00\x04\x00\x01\x99", 13));
 
   /* try (and fail) to decompress the invalid compresed buffer */
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GPR_ASSERT(0 == grpc_msg_decompress(GRPC_COMPRESS_DEFLATE, &input, &output));
 
   grpc_slice_buffer_destroy(&input);
@@ -222,7 +222,7 @@ static void test_bad_decompression_data_stream(void) {
                         grpc_slice_from_copied_buffer("\x78\xda\xff\xff", 4));
 
   /* try (and fail) to decompress the invalid compresed buffer */
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GPR_ASSERT(0 == grpc_msg_decompress(GRPC_COMPRESS_DEFLATE, &input, &output));
 
   grpc_slice_buffer_destroy(&input);
@@ -239,7 +239,7 @@ static void test_bad_compression_algorithm(void) {
   grpc_slice_buffer_add(
       &input, grpc_slice_from_copied_string("Never gonna give you up"));
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   was_compressed =
       grpc_msg_compress(GRPC_COMPRESS_ALGORITHMS_COUNT, &input, &output);
   GPR_ASSERT(0 == was_compressed);
@@ -263,7 +263,7 @@ static void test_bad_decompression_algorithm(void) {
   grpc_slice_buffer_add(&input,
                         grpc_slice_from_copied_string(
                             "I'm not really compressed but it doesn't matter"));
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   was_decompressed =
       grpc_msg_decompress(GRPC_COMPRESS_ALGORITHMS_COUNT, &input, &output);
   GPR_ASSERT(0 == was_decompressed);

test/core/debug/stats_test.cc

@@ -49,7 +49,7 @@ TEST(StatsTest, IncCounters) {
   for (int i = 0; i < GRPC_STATS_COUNTER_COUNT; i++) {
     Snapshot snapshot;
 
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     GRPC_STATS_INC_COUNTER((grpc_stats_counters)i);
 
     EXPECT_EQ(snapshot.delta().counters[i], 1);
@@ -59,7 +59,7 @@ TEST(StatsTest, IncCounters) {
 TEST(StatsTest, IncSpecificCounter) {
   Snapshot snapshot;
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_STATS_INC_SYSCALL_POLL();
 
   EXPECT_EQ(snapshot.delta().counters[GRPC_STATS_COUNTER_SYSCALL_POLL], 1);
@@ -92,7 +92,7 @@ TEST_P(HistogramTest, IncHistogram) {
     for (auto j : test_values) {
       Snapshot snapshot;
 
-      grpc_core::ExecCtx _local_exec_ctx;
+      grpc_core::ExecCtx exec_ctx;
       grpc_stats_inc_histogram[kHistogram](j);
 
       auto delta = snapshot.delta();

test/core/end2end/bad_server_response_test.cc

@@ -269,7 +269,7 @@ static void run_test(const char* response_payload,
                      grpc_status_code expected_status,
                      const char* expected_detail) {
   test_tcp_server test_server;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   gpr_event ev;
 
   grpc_init();

test/core/end2end/connection_refused_test.cc

@@ -133,7 +133,7 @@ static void run_test(bool wait_for_ready, bool use_service_config) {
   grpc_metadata_array_destroy(&trailing_metadata_recv);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     if (args != nullptr) grpc_channel_args_destroy(args);
   }
 

test/core/end2end/fixtures/h2_census.cc

@@ -75,7 +75,7 @@ void chttp2_init_client_fullstack(grpc_end2end_test_fixture* f,
       grpc_insecure_channel_create(ffd->localaddr, client_args, nullptr);
   GPR_ASSERT(f->client);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(client_args);
   }
 }
@@ -91,7 +91,7 @@ void chttp2_init_server_fullstack(grpc_end2end_test_fixture* f,
   server_args = grpc_channel_args_copy_and_add(server_args, &arg, 1);
   f->server = grpc_server_create(server_args, nullptr);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(server_args);
   }
   grpc_server_register_completion_queue(f->server, f->cq, nullptr);

test/core/end2end/fixtures/h2_compress.cc

@@ -66,7 +66,7 @@ void chttp2_init_client_fullstack_compression(grpc_end2end_test_fixture* f,
   fullstack_compression_fixture_data* ffd =
       static_cast<fullstack_compression_fixture_data*>(f->fixture_data);
   if (ffd->client_args_compression != nullptr) {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(ffd->client_args_compression);
   }
   ffd->client_args_compression = grpc_channel_args_set_compression_algorithm(
@@ -80,7 +80,7 @@ void chttp2_init_server_fullstack_compression(grpc_end2end_test_fixture* f,
   fullstack_compression_fixture_data* ffd =
       static_cast<fullstack_compression_fixture_data*>(f->fixture_data);
   if (ffd->server_args_compression != nullptr) {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(ffd->server_args_compression);
   }
   ffd->server_args_compression = grpc_channel_args_set_compression_algorithm(
@@ -95,7 +95,7 @@ void chttp2_init_server_fullstack_compression(grpc_end2end_test_fixture* f,
 }
 
 void chttp2_tear_down_fullstack_compression(grpc_end2end_test_fixture* f) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   fullstack_compression_fixture_data* ffd =
       static_cast<fullstack_compression_fixture_data*>(f->fixture_data);
   grpc_channel_args_destroy(ffd->client_args_compression);

test/core/end2end/fixtures/h2_fd.cc

@@ -68,7 +68,7 @@ static grpc_end2end_test_fixture chttp2_create_fixture_socketpair(
 
 static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
                                           grpc_channel_args* client_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   sp_fixture_data* sfd = static_cast<sp_fixture_data*>(f->fixture_data);
 
   GPR_ASSERT(!f->client);
@@ -79,7 +79,7 @@ static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
 
 static void chttp2_init_server_socketpair(grpc_end2end_test_fixture* f,
                                           grpc_channel_args* server_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   sp_fixture_data* sfd = static_cast<sp_fixture_data*>(f->fixture_data);
   GPR_ASSERT(!f->server);
   f->server = grpc_server_create(server_args, nullptr);

test/core/end2end/fixtures/h2_full+workarounds.cc

@@ -72,7 +72,7 @@ void chttp2_init_client_fullstack(grpc_end2end_test_fixture* f,
 void chttp2_init_server_fullstack(grpc_end2end_test_fixture* f,
                                   grpc_channel_args* server_args) {
   int i;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   fullstack_fixture_data* ffd =
       static_cast<fullstack_fixture_data*>(f->fixture_data);
   grpc_arg args[GRPC_MAX_WORKAROUND_ID];

test/core/end2end/fixtures/h2_load_reporting.cc

@@ -78,7 +78,7 @@ void chttp2_init_server_load_reporting(grpc_end2end_test_fixture* f,
   server_args = grpc_channel_args_copy_and_add(server_args, &arg, 1);
   f->server = grpc_server_create(server_args, nullptr);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(server_args);
   }
   grpc_server_register_completion_queue(f->server, f->cq, nullptr);

test/core/end2end/fixtures/h2_oauth2.cc

@@ -143,7 +143,7 @@ void chttp2_tear_down_secure_fullstack(grpc_end2end_test_fixture* f) {
 
 static void chttp2_init_client_simple_ssl_with_oauth2_secure_fullstack(
     grpc_end2end_test_fixture* f, grpc_channel_args* client_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_channel_credentials* ssl_creds =
       grpc_ssl_credentials_create(test_root_cert, nullptr, nullptr);
   grpc_call_credentials* oauth2_creds = grpc_md_only_test_credentials_create(

test/core/end2end/fixtures/h2_sockpair+trace.cc

@@ -50,7 +50,7 @@
 
 static void server_setup_transport(void* ts, grpc_transport* transport) {
   grpc_end2end_test_fixture* f = static_cast<grpc_end2end_test_fixture*>(ts);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_endpoint_add_to_pollset(sfd->server, grpc_cq_pollset(f->cq));
   grpc_server_setup_transport(f->server, transport, nullptr,
@@ -87,7 +87,7 @@ static grpc_end2end_test_fixture chttp2_create_fixture_socketpair(
 
 static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
                                           grpc_channel_args* client_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_transport* transport;
   sp_client_setup cs;
@@ -101,7 +101,7 @@ static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
 
 static void chttp2_init_server_socketpair(grpc_end2end_test_fixture* f,
                                           grpc_channel_args* server_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_transport* transport;
   GPR_ASSERT(!f->server);

test/core/end2end/fixtures/h2_sockpair.cc

@@ -44,7 +44,7 @@
 
 static void server_setup_transport(void* ts, grpc_transport* transport) {
   grpc_end2end_test_fixture* f = static_cast<grpc_end2end_test_fixture*>(ts);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_endpoint_add_to_pollset(sfd->server, grpc_cq_pollset(f->cq));
   grpc_server_setup_transport(f->server, transport, nullptr,
@@ -81,7 +81,7 @@ static grpc_end2end_test_fixture chttp2_create_fixture_socketpair(
 
 static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
                                           grpc_channel_args* client_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_transport* transport;
   sp_client_setup cs;
@@ -95,7 +95,7 @@ static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
 
 static void chttp2_init_server_socketpair(grpc_end2end_test_fixture* f,
                                           grpc_channel_args* server_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_transport* transport;
   GPR_ASSERT(!f->server);

test/core/end2end/fixtures/h2_sockpair_1byte.cc

@@ -44,7 +44,7 @@
 
 static void server_setup_transport(void* ts, grpc_transport* transport) {
   grpc_end2end_test_fixture* f = static_cast<grpc_end2end_test_fixture*>(ts);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_endpoint_add_to_pollset(sfd->server, grpc_cq_pollset(f->cq));
   grpc_server_setup_transport(f->server, transport, nullptr,
@@ -92,7 +92,7 @@ static grpc_end2end_test_fixture chttp2_create_fixture_socketpair(
 
 static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
                                           grpc_channel_args* client_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_transport* transport;
   sp_client_setup cs;
@@ -106,7 +106,7 @@ static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
 
 static void chttp2_init_server_socketpair(grpc_end2end_test_fixture* f,
                                           grpc_channel_args* server_args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
   grpc_transport* transport;
   GPR_ASSERT(!f->server);

test/core/end2end/fixtures/h2_ssl.cc

@@ -110,7 +110,7 @@ static void chttp2_init_client_simple_ssl_secure_fullstack(
       grpc_channel_args_copy_and_add(client_args, &ssl_name_override, 1);
   chttp2_init_client_secure_fullstack(f, new_client_args, ssl_creds);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(new_client_args);
   }
 }

test/core/end2end/fixtures/h2_ssl_proxy.cc

@@ -66,7 +66,7 @@ static grpc_channel* create_proxy_client(const char* target,
       grpc_secure_channel_create(ssl_creds, target, new_client_args, nullptr);
   grpc_channel_credentials_release(ssl_creds);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(new_client_args);
   }
   return channel;
@@ -147,7 +147,7 @@ static void chttp2_init_client_simple_ssl_secure_fullstack(
       grpc_channel_args_copy_and_add(client_args, &ssl_name_override, 1);
   chttp2_init_client_secure_fullstack(f, new_client_args, ssl_creds);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(new_client_args);
   }
 }

test/core/end2end/fixtures/http_proxy_fixture.cc

@@ -457,7 +457,7 @@ static void on_accept(void* arg, grpc_endpoint* endpoint,
 
 static void thread_main(void* arg) {
   grpc_end2end_http_proxy* proxy = (grpc_end2end_http_proxy*)arg;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   do {
     gpr_ref(&proxy->users);
     grpc_pollset_worker* worker = nullptr;
@@ -473,7 +473,7 @@ static void thread_main(void* arg) {
 
 grpc_end2end_http_proxy* grpc_end2end_http_proxy_create(
     grpc_channel_args* args) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_end2end_http_proxy* proxy =
       (grpc_end2end_http_proxy*)gpr_malloc(sizeof(*proxy));
   memset(proxy, 0, sizeof(*proxy));
@@ -518,7 +518,7 @@ static void destroy_pollset(void* arg, grpc_error* error) {
 
 void grpc_end2end_http_proxy_destroy(grpc_end2end_http_proxy* proxy) {
   gpr_unref(&proxy->users);  // Signal proxy thread to shutdown.
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   gpr_thd_join(proxy->thd);
   grpc_tcp_server_shutdown_listeners(proxy->server);
   grpc_tcp_server_unref(proxy->server);

test/core/end2end/fuzzers/api_fuzzer.cc

@@ -748,7 +748,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   grpc_init();
   grpc_timer_manager_set_threading(false);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_executor_set_threading(false);
   }
   grpc_resolve_address = my_resolve_address;
@@ -842,7 +842,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
           g_channel = grpc_insecure_channel_create(target_uri, args, nullptr);
           GPR_ASSERT(g_channel != nullptr);
           {
-            grpc_core::ExecCtx _local_exec_ctx;
+            grpc_core::ExecCtx exec_ctx;
             grpc_channel_args_destroy(args);
           }
           gpr_free(target_uri);
@@ -869,7 +869,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
           g_server = grpc_server_create(args, nullptr);
           GPR_ASSERT(g_server != nullptr);
           {
-            grpc_core::ExecCtx _local_exec_ctx;
+            grpc_core::ExecCtx exec_ctx;
             grpc_channel_args_destroy(args);
           }
           grpc_server_register_completion_queue(g_server, cq, nullptr);
@@ -1199,7 +1199,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
               grpc_secure_channel_create(creds, target_uri, args, nullptr);
           GPR_ASSERT(g_channel != nullptr);
           {
-            grpc_core::ExecCtx _local_exec_ctx;
+            grpc_core::ExecCtx exec_ctx;
             grpc_channel_args_destroy(args);
           }
           gpr_free(target_uri);

test/core/end2end/fuzzers/client_fuzzer.cc

@@ -44,7 +44,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   if (leak_check) grpc_memory_counters_init();
   grpc_init();
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_executor_set_threading(false);
 
     grpc_resource_quota* resource_quota =

test/core/end2end/fuzzers/server_fuzzer.cc

@@ -42,7 +42,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   if (leak_check) grpc_memory_counters_init();
   grpc_init();
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_executor_set_threading(false);
 
     grpc_resource_quota* resource_quota =

test/core/end2end/h2_ssl_cert_test.cc

@@ -181,7 +181,7 @@ typedef enum { NONE, SELF_SIGNED, SIGNED, BAD_CERT_PAIR } certtype;
         grpc_channel_args_copy_and_add(client_args, &ssl_name_override, 1);  \
     chttp2_init_client_secure_fullstack(f, new_client_args, ssl_creds);      \
     {                                                                        \
-      grpc_core::ExecCtx _local_exec_ctx;                                    \
+      grpc_core::ExecCtx exec_ctx;                                           \
       grpc_channel_args_destroy(new_client_args);                            \
     }                                                                        \
   }

test/core/end2end/tests/cancel_after_accept.cc

@@ -245,7 +245,7 @@ static void test_cancel_after_accept(grpc_end2end_test_config config,
   grpc_call_unref(s);
 
   if (args != nullptr) {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(args);
   }
 

test/core/end2end/tests/cancel_after_round_trip.cc

@@ -278,7 +278,7 @@ static void test_cancel_after_round_trip(grpc_end2end_test_config config,
   grpc_call_unref(s);
 
   if (args != nullptr) {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(args);
   }
 

test/core/end2end/tests/compressed_payload.cc

@@ -129,7 +129,7 @@ static void request_for_disabled_algorithm(
   server_args =
       grpc_channel_args_set_compression_algorithm(nullptr, GRPC_COMPRESS_NONE);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     server_args = grpc_channel_args_compression_algorithm_set_state(
         &server_args, algorithm_to_disable, false);
   }
@@ -256,7 +256,7 @@ static void request_for_disabled_algorithm(
   grpc_byte_buffer_destroy(request_payload_recv);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(client_args);
     grpc_channel_args_destroy(server_args);
   }
@@ -537,7 +537,7 @@ static void request_with_payload_template(
   cq_verifier_destroy(cqv);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(client_args);
     grpc_channel_args_destroy(server_args);
   }

test/core/end2end/tests/load_reporting_hook.cc

@@ -300,7 +300,7 @@ static void test_load_reporting_hook(grpc_end2end_test_config config) {
                                 &trailing_lr_metadata);
   end_test(&f);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(lr_server_args);
   }
   config.tear_down_data(&f);

test/core/end2end/tests/max_message_length.cc

@@ -173,7 +173,7 @@ static void test_max_message_length_on_request(grpc_end2end_test_config config,
   f = begin_test(config, "test_max_request_message_length", client_args,
                  server_args);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     if (client_args != nullptr) grpc_channel_args_destroy(client_args);
     if (server_args != nullptr) grpc_channel_args_destroy(server_args);
   }
@@ -363,7 +363,7 @@ static void test_max_message_length_on_response(grpc_end2end_test_config config,
   f = begin_test(config, "test_max_response_message_length", client_args,
                  server_args);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     if (client_args != nullptr) grpc_channel_args_destroy(client_args);
     if (server_args != nullptr) grpc_channel_args_destroy(server_args);
   }

test/core/end2end/tests/stream_compression_compressed_payload.cc

@@ -129,7 +129,7 @@ static void request_for_disabled_algorithm(
   server_args = grpc_channel_args_set_stream_compression_algorithm(
       nullptr, GRPC_STREAM_COMPRESS_NONE);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     server_args = grpc_channel_args_stream_compression_algorithm_set_state(
         &server_args, algorithm_to_disable, false);
   }
@@ -257,7 +257,7 @@ static void request_for_disabled_algorithm(
   grpc_byte_buffer_destroy(request_payload_recv);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(client_args);
     grpc_channel_args_destroy(server_args);
   }
@@ -545,7 +545,7 @@ static void request_with_payload_template(
   cq_verifier_destroy(cqv);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(client_args);
     grpc_channel_args_destroy(server_args);
   }

test/core/end2end/tests/stream_compression_payload.cc

@@ -277,7 +277,7 @@ static void test_invoke_request_response_with_payload(
   end_test(&f);
   config.tear_down_data(&f);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(client_args);
     grpc_channel_args_destroy(server_args);
   }

test/core/end2end/tests/stream_compression_ping_pong_streaming.cc

@@ -275,7 +275,7 @@ static void test_pingpong_streaming(grpc_end2end_test_config config,
   end_test(&f);
   config.tear_down_data(&f);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(client_args);
     grpc_channel_args_destroy(server_args);
   }

test/core/end2end/tests/workaround_cronet_compression.cc

@@ -142,7 +142,7 @@ static void request_with_payload_template(
       nullptr, default_server_channel_compression_algorithm);
 
   if (user_agent_override) {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args* client_args_old = client_args;
     grpc_arg arg;
     arg.key = const_cast<char*>(GRPC_ARG_PRIMARY_USER_AGENT_STRING);
@@ -350,7 +350,7 @@ static void request_with_payload_template(
   cq_verifier_destroy(cqv);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_channel_args_destroy(client_args);
     grpc_channel_args_destroy(server_args);
   }

test/core/http/httpcli_test.cc

@@ -60,7 +60,7 @@ static void on_finish(void* arg, grpc_error* error) {
 static void test_get(int port) {
   grpc_httpcli_request req;
   char* host;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   g_done = 0;
   gpr_log(GPR_INFO, "test_get");
@@ -99,7 +99,7 @@ static void test_get(int port) {
 static void test_post(int port) {
   grpc_httpcli_request req;
   char* host;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   g_done = 0;
   gpr_log(GPR_INFO, "test_post");
@@ -146,7 +146,7 @@ int main(int argc, char** argv) {
   grpc_init();
   {
     grpc_closure destroyed;
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     char* me = argv[0];
     char* lslash = strrchr(me, '/');
     char* args[4];

test/core/http/httpscli_test.cc

@@ -60,7 +60,7 @@ static void on_finish(void* arg, grpc_error* error) {
 static void test_get(int port) {
   grpc_httpcli_request req;
   char* host;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   g_done = 0;
   gpr_log(GPR_INFO, "test_get");
@@ -100,7 +100,7 @@ static void test_get(int port) {
 static void test_post(int port) {
   grpc_httpcli_request req;
   char* host;
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
 
   g_done = 0;
   gpr_log(GPR_INFO, "test_post");
@@ -195,7 +195,7 @@ int main(int argc, char** argv) {
   test_post(port);
 
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_httpcli_context_destroy(&g_context);
     GRPC_CLOSURE_INIT(&destroyed, destroy_pops, &g_pops,
                       grpc_schedule_on_exec_ctx);

test/core/iomgr/combiner_test.cc

@@ -28,7 +28,7 @@
 
 static void test_no_op(void) {
   gpr_log(GPR_DEBUG, "test_no_op");
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_COMBINER_UNREF(grpc_combiner_create(), "test_no_op");
 }
 
@@ -42,7 +42,7 @@ static void test_execute_one(void) {
   grpc_combiner* lock = grpc_combiner_create();
   gpr_event done;
   gpr_event_init(&done);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_CLOSURE_SCHED(GRPC_CLOSURE_CREATE(set_event_to_true, &done,
                                          grpc_combiner_scheduler(lock)),
                      GRPC_ERROR_NONE);
@@ -72,7 +72,7 @@ static void check_one(void* a, grpc_error* error) {
 
 static void execute_many_loop(void* a) {
   thd_args* args = static_cast<thd_args*>(a);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   size_t n = 1;
   for (size_t i = 0; i < 10; i++) {
     for (size_t j = 0; j < 10000; j++) {
@@ -112,7 +112,7 @@ static void test_execute_many(void) {
                               gpr_inf_future(GPR_CLOCK_REALTIME)) != nullptr);
     gpr_thd_join(thds[i]);
   }
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   GRPC_COMBINER_UNREF(lock, "test_execute_many");
 }
 
@@ -133,7 +133,7 @@ static void test_execute_finally(void) {
   gpr_log(GPR_DEBUG, "test_execute_finally");
 
   grpc_combiner* lock = grpc_combiner_create();
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   gpr_event_init(&got_in_finally);
   GRPC_CLOSURE_SCHED(
       GRPC_CLOSURE_CREATE(add_finally, lock, grpc_combiner_scheduler(lock)),

test/core/iomgr/endpoint_pair_test.cc

@@ -32,7 +32,7 @@ static void clean_up(void) {}
 
 static grpc_endpoint_test_fixture create_fixture_endpoint_pair(
     size_t slice_size) {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_test_fixture f;
   grpc_arg a[1];
   a[0].key = const_cast<char*>(GRPC_ARG_TCP_READ_CHUNK_SIZE);
@@ -62,7 +62,7 @@ int main(int argc, char** argv) {
   grpc_test_init(argc, argv);
   grpc_init();
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     g_pollset = static_cast<grpc_pollset*>(gpr_zalloc(grpc_pollset_size()));
     grpc_pollset_init(g_pollset, &g_mu);
     grpc_endpoint_tests(configs[0], g_pollset, g_mu);

test/core/iomgr/endpoint_tests.cc

@@ -173,7 +173,7 @@ static void read_and_write_test(grpc_endpoint_test_config config,
   struct read_and_write_test_state state;
   grpc_endpoint_test_fixture f =
       begin_test(config, "read_and_write_test", slice_size);
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_millis deadline =
       grpc_timespec_to_millis_round_up(grpc_timeout_seconds_to_deadline(20));
   gpr_log(GPR_DEBUG,
@@ -277,7 +277,7 @@ static void multiple_shutdown_test(grpc_endpoint_test_config config) {
   grpc_slice_buffer slice_buffer;
   grpc_slice_buffer_init(&slice_buffer);
 
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   grpc_endpoint_add_to_pollset(f.client_ep, g_pollset);
   grpc_endpoint_read(f.client_ep, &slice_buffer,
                      GRPC_CLOSURE_CREATE(inc_on_failure, &fail_count,

test/core/iomgr/ev_epollsig_linux_test.cc

@@ -130,7 +130,7 @@ static void test_pollset_cleanup(test_pollset* pollsets, int num_pollsets) {
 #define NUM_POLLSETS 4
 
 static void test_add_fd_to_pollset() {
-  grpc_core::ExecCtx _local_exec_ctx;
+  grpc_core::ExecCtx exec_ctx;
   test_fd tfds[NUM_FDS];
   int fds[NUM_FDS];
   test_pollset pollsets[NUM_POLLSETS];
@@ -231,7 +231,7 @@ static __thread int thread_wakeups = 0;
 static void test_threading_loop(void* arg) {
   threading_shared* shared = static_cast<threading_shared*>(arg);
   while (thread_wakeups < 1000000) {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_pollset_worker* worker;
     gpr_mu_lock(shared->mu);
     GPR_ASSERT(GRPC_LOG_IF_ERROR(
@@ -271,7 +271,7 @@ static void test_threading(void) {
   shared.wakeup_desc = grpc_fd_create(fd.read_fd, "wakeup");
   shared.wakeups = 0;
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_pollset_add_fd(shared.pollset, shared.wakeup_desc);
     grpc_fd_notify_on_read(
         shared.wakeup_desc,
@@ -286,7 +286,7 @@ static void test_threading(void) {
   fd.read_fd = 0;
   grpc_wakeup_fd_destroy(&fd);
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
     grpc_fd_shutdown(shared.wakeup_desc, GRPC_ERROR_CANCELLED);
     grpc_fd_orphan(shared.wakeup_desc, nullptr, nullptr,
                    false /* already_closed */, "done");
@@ -302,7 +302,7 @@ int main(int argc, char** argv) {
   grpc_test_init(argc, argv);
   grpc_init();
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
 
     poll_strategy = grpc_get_poll_strategy_name();
     if (poll_strategy != nullptr && strcmp(poll_strategy, "epollsig") == 0) {

test/core/iomgr/fd_conservation_posix_test.cc

@@ -32,7 +32,7 @@ int main(int argc, char** argv) {
   grpc_test_init(argc, argv);
   grpc_init();
   {
-    grpc_core::ExecCtx _local_exec_ctx;
+    grpc_core::ExecCtx exec_ctx;
 
     /* set max # of file descriptors to a low value, and
        verify we can create and destroy many more than this number