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@ -38,14 +38,17 @@ |
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#include <limits.h> |
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#include <string.h> |
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#include <grpc/slice_buffer.h> |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include <grpc/support/slice_buffer.h> |
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#include <grpc/support/string_util.h> |
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#include "src/core/lib/iomgr/error.h" |
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#include "src/core/lib/iomgr/network_status_tracker.h" |
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#include "src/core/lib/iomgr/resource_quota.h" |
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#include "src/core/lib/iomgr/tcp_uv.h" |
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#include "src/core/lib/slice/slice_string_helpers.h" |
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#include "src/core/lib/support/string.h" |
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int grpc_tcp_trace = 0; |
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@ -62,15 +65,14 @@ typedef struct { |
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grpc_closure *read_cb; |
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grpc_closure *write_cb; |
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GRPC_SLICE read_slice; |
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GRPC_SLICE_buffer *read_slices; |
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GRPC_SLICE_buffer *write_slices; |
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grpc_slice read_slice; |
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grpc_slice_buffer *read_slices; |
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grpc_slice_buffer *write_slices; |
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uv_buf_t *write_buffers; |
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grpc_resource_user resource_user; |
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grpc_resource_user *resource_user; |
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bool shutting_down; |
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bool resource_user_shutting_down; |
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char *peer_string; |
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grpc_pollset *pollset; |
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@ -78,23 +80,21 @@ typedef struct { |
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static void uv_close_callback(uv_handle_t *handle) { gpr_free(handle); } |
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static void tcp_free(grpc_tcp *tcp) { |
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
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grpc_resource_user_destroy(&exec_ctx, &tcp->resource_user); |
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static void tcp_free(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) { |
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grpc_resource_user_unref(exec_ctx, tcp->resource_user); |
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gpr_free(tcp); |
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grpc_exec_ctx_finish(&exec_ctx); |
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} |
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/*#define GRPC_TCP_REFCOUNT_DEBUG*/ |
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#ifdef GRPC_TCP_REFCOUNT_DEBUG |
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#define TCP_UNREF(tcp, reason) tcp_unref((tcp), (reason), __FILE__, __LINE__) |
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#define TCP_REF(tcp, reason) tcp_ref((tcp), (reason), __FILE__, __LINE__) |
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static void tcp_unref(grpc_tcp *tcp, const char *reason, const char *file, |
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#define TCP_UNREF(exec_ctx, tcp, reason) tcp_unref((exec_ctx), (tcp), (reason), __FILE__, __LINE__) |
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#define TCP_REF(tcp, reason) tcp_ref((exec_ctx), (tcp), (reason), __FILE__, __LINE__) |
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static void tcp_unref(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp, const char *reason, const char *file, |
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int line) { |
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gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "TCP unref %p : %s %d -> %d", tcp, |
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reason, tcp->refcount.count, tcp->refcount.count - 1); |
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if (gpr_unref(&tcp->refcount)) { |
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tcp_free(tcp); |
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tcp_free(exec_ctx, tcp); |
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} |
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} |
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@ -105,11 +105,11 @@ static void tcp_ref(grpc_tcp *tcp, const char *reason, const char *file, |
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gpr_ref(&tcp->refcount); |
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} |
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#else |
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#define TCP_UNREF(tcp, reason) tcp_unref((tcp)) |
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#define TCP_UNREF(exec_ctx, tcp, reason) tcp_unref((exec_ctx), (tcp)) |
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#define TCP_REF(tcp, reason) tcp_ref((tcp)) |
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static void tcp_unref(grpc_tcp *tcp) { |
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static void tcp_unref(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) { |
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if (gpr_unref(&tcp->refcount)) { |
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tcp_free(tcp); |
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tcp_free(exec_ctx, tcp); |
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} |
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} |
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@ -122,7 +122,7 @@ static void alloc_uv_buf(uv_handle_t *handle, size_t suggested_size, |
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grpc_tcp *tcp = handle->data; |
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(void)suggested_size; |
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tcp->read_slice = grpc_resource_user_slice_malloc( |
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&exec_ctx, &tcp->resource_user, GRPC_TCP_DEFAULT_READ_SLICE_SIZE); |
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&exec_ctx, tcp->resource_user, GRPC_TCP_DEFAULT_READ_SLICE_SIZE); |
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buf->base = (char *)GRPC_SLICE_START_PTR(tcp->read_slice); |
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buf->len = GRPC_SLICE_LENGTH(tcp->read_slice); |
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grpc_exec_ctx_finish(&exec_ctx); |
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@ -130,7 +130,7 @@ static void alloc_uv_buf(uv_handle_t *handle, size_t suggested_size, |
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static void read_callback(uv_stream_t *stream, ssize_t nread, |
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const uv_buf_t *buf) { |
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GRPC_SLICE sub; |
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grpc_slice sub; |
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grpc_error *error; |
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
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grpc_tcp *tcp = stream->data; |
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@ -139,7 +139,7 @@ static void read_callback(uv_stream_t *stream, ssize_t nread, |
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// Nothing happened. Wait for the next callback
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return; |
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} |
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TCP_UNREF(tcp, "read"); |
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TCP_UNREF(&exec_ctx, tcp, "read"); |
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tcp->read_cb = NULL; |
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// TODO(murgatroid99): figure out what the return value here means
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uv_read_stop(stream); |
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@ -147,8 +147,8 @@ static void read_callback(uv_stream_t *stream, ssize_t nread, |
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error = GRPC_ERROR_CREATE("EOF"); |
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} else if (nread > 0) { |
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// Successful read
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sub = GRPC_SLICE_sub_no_ref(tcp->read_slice, 0, (size_t)nread); |
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GRPC_SLICE_buffer_add(tcp->read_slices, sub); |
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sub = grpc_slice_sub_no_ref(tcp->read_slice, 0, (size_t)nread); |
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grpc_slice_buffer_add(tcp->read_slices, sub); |
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error = GRPC_ERROR_NONE; |
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if (grpc_tcp_trace) { |
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size_t i; |
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@ -156,7 +156,7 @@ static void read_callback(uv_stream_t *stream, ssize_t nread, |
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gpr_log(GPR_DEBUG, "read: error=%s", str); |
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grpc_error_free_string(str); |
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for (i = 0; i < tcp->read_slices->count; i++) { |
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char *dump = gpr_dump_slice(tcp->read_slices->slices[i], |
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char *dump = grpc_dump_slice(tcp->read_slices->slices[i], |
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GPR_DUMP_HEX | GPR_DUMP_ASCII); |
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gpr_log(GPR_DEBUG, "READ %p (peer=%s): %s", tcp, tcp->peer_string, |
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dump); |
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@ -172,14 +172,14 @@ static void read_callback(uv_stream_t *stream, ssize_t nread, |
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} |
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static void uv_endpoint_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, |
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GRPC_SLICE_buffer *read_slices, grpc_closure *cb) { |
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grpc_slice_buffer *read_slices, grpc_closure *cb) { |
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grpc_tcp *tcp = (grpc_tcp *)ep; |
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int status; |
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grpc_error *error = GRPC_ERROR_NONE; |
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GPR_ASSERT(tcp->read_cb == NULL); |
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tcp->read_cb = cb; |
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tcp->read_slices = read_slices; |
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GRPC_SLICE_buffer_reset_and_unref(read_slices); |
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grpc_slice_buffer_reset_and_unref(read_slices); |
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TCP_REF(tcp, "read"); |
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// TODO(murgatroid99): figure out what the return value here means
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status = |
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@ -202,7 +202,7 @@ static void write_callback(uv_write_t *req, int status) { |
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
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grpc_closure *cb = tcp->write_cb; |
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tcp->write_cb = NULL; |
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TCP_UNREF(tcp, "write"); |
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TCP_UNREF(&exec_ctx, tcp, "write"); |
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if (status == 0) { |
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error = GRPC_ERROR_NONE; |
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} else { |
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@ -213,27 +213,27 @@ static void write_callback(uv_write_t *req, int status) { |
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gpr_log(GPR_DEBUG, "write complete on %p: error=%s", tcp, str); |
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} |
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gpr_free(tcp->write_buffers); |
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grpc_resource_user_free(&exec_ctx, &tcp->resource_user, |
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grpc_resource_user_free(&exec_ctx, tcp->resource_user, |
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sizeof(uv_buf_t) * tcp->write_slices->count); |
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grpc_exec_ctx_sched(&exec_ctx, cb, error, NULL); |
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grpc_exec_ctx_finish(&exec_ctx); |
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} |
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static void uv_endpoint_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, |
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GRPC_SLICE_buffer *write_slices, |
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grpc_slice_buffer *write_slices, |
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grpc_closure *cb) { |
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grpc_tcp *tcp = (grpc_tcp *)ep; |
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uv_buf_t *buffers; |
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unsigned int buffer_count; |
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unsigned int i; |
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GRPC_SLICE *slice; |
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grpc_slice *slice; |
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uv_write_t *write_req; |
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if (grpc_tcp_trace) { |
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size_t j; |
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for (j = 0; j < write_slices->count; j++) { |
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char *data = gpr_dump_slice(write_slices->slices[j], |
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char *data = grpc_dump_slice(write_slices->slices[j], |
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GPR_DUMP_HEX | GPR_DUMP_ASCII); |
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gpr_log(GPR_DEBUG, "WRITE %p (peer=%s): %s", tcp, tcp->peer_string, data); |
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gpr_free(data); |
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@ -259,7 +259,7 @@ static void uv_endpoint_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, |
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tcp->write_cb = cb; |
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buffer_count = (unsigned int)tcp->write_slices->count; |
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buffers = gpr_malloc(sizeof(uv_buf_t) * buffer_count); |
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grpc_resource_user_alloc(exec_ctx, &tcp->resource_user, |
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grpc_resource_user_alloc(exec_ctx, tcp->resource_user, |
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sizeof(uv_buf_t) * buffer_count, NULL); |
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for (i = 0; i < buffer_count; i++) { |
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slice = &tcp->write_slices->slices[i]; |
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@ -295,22 +295,6 @@ static void uv_add_to_pollset_set(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, |
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static void shutdown_callback(uv_shutdown_t *req, int status) {} |
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static void resource_user_shutdown_done(grpc_exec_ctx *exec_ctx, void *arg, |
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grpc_error *error) { |
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TCP_UNREF(arg, "resource_user"); |
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} |
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static void uv_resource_user_maybe_shutdown(grpc_exec_ctx *exec_ctx, |
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grpc_tcp *tcp) { |
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if (!tcp->resource_user_shutting_down) { |
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tcp->resource_user_shutting_down = true; |
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TCP_REF(tcp, "resource_user"); |
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grpc_resource_user_shutdown( |
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exec_ctx, &tcp->resource_user, |
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grpc_closure_create(resource_user_shutdown_done, tcp)); |
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} |
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} |
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static void uv_endpoint_shutdown(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep) { |
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grpc_tcp *tcp = (grpc_tcp *)ep; |
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if (!tcp->shutting_down) { |
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@ -324,8 +308,7 @@ static void uv_destroy(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep) { |
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grpc_network_status_unregister_endpoint(ep); |
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grpc_tcp *tcp = (grpc_tcp *)ep; |
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uv_close((uv_handle_t *)tcp->handle, uv_close_callback); |
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uv_resource_user_maybe_shutdown(exec_ctx, tcp); |
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TCP_UNREF(tcp, "destroy"); |
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TCP_UNREF(exec_ctx, tcp, "destroy"); |
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} |
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static char *uv_get_peer(grpc_endpoint *ep) { |
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@ -335,7 +318,7 @@ static char *uv_get_peer(grpc_endpoint *ep) { |
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static grpc_resource_user *uv_get_resource_user(grpc_endpoint *ep) { |
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grpc_tcp *tcp = (grpc_tcp *)ep; |
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return &tcp->resource_user; |
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return tcp->resource_user; |
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} |
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static grpc_workqueue *uv_get_workqueue(grpc_endpoint *ep) { return NULL; } |
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@ -364,8 +347,7 @@ grpc_endpoint *grpc_tcp_create(uv_tcp_t *handle, |
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gpr_ref_init(&tcp->refcount, 1); |
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tcp->peer_string = gpr_strdup(peer_string); |
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tcp->shutting_down = false; |
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tcp->resource_user_shutting_down = false; |
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grpc_resource_user_init(&tcp->resource_user, resource_quota, peer_string); |
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tcp->resource_user = grpc_resource_user_create(resource_quota, peer_string); |
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/* Tell network status tracking code about the new endpoint */ |
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grpc_network_status_register_endpoint(&tcp->base); |
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