Sanity fixes

grpc.def

@@ -67,6 +67,7 @@ EXPORTS
     grpc_channel_check_connectivity_state
     grpc_channel_num_external_connectivity_watchers
     grpc_channel_watch_connectivity_state
+    grpc_channel_support_connectivity_watcher
     grpc_channel_create_call
     grpc_channel_ping
     grpc_channel_register_call

src/cpp/client/channel_cc.cc

@@ -205,9 +205,7 @@ Channel::Channel(const grpc::string& host, grpc_channel* channel)
   }
 }
 
-Channel::~Channel() {
+Channel::~Channel() { grpc_channel_destroy(c_channel_); }
-  grpc_channel_destroy(c_channel_);
-}
 
 namespace {
 

src/ruby/ext/grpc/rb_grpc_imports.generated.c

@@ -90,6 +90,7 @@ grpc_alarm_destroy_type grpc_alarm_destroy_import;
 grpc_channel_check_connectivity_state_type grpc_channel_check_connectivity_state_import;
 grpc_channel_num_external_connectivity_watchers_type grpc_channel_num_external_connectivity_watchers_import;
 grpc_channel_watch_connectivity_state_type grpc_channel_watch_connectivity_state_import;
+grpc_channel_support_connectivity_watcher_type grpc_channel_support_connectivity_watcher_import;
 grpc_channel_create_call_type grpc_channel_create_call_import;
 grpc_channel_ping_type grpc_channel_ping_import;
 grpc_channel_register_call_type grpc_channel_register_call_import;
@@ -393,6 +394,7 @@ void grpc_rb_load_imports(HMODULE library) {
   grpc_channel_check_connectivity_state_import = (grpc_channel_check_connectivity_state_type) GetProcAddress(library, "grpc_channel_check_connectivity_state");
   grpc_channel_num_external_connectivity_watchers_import = (grpc_channel_num_external_connectivity_watchers_type) GetProcAddress(library, "grpc_channel_num_external_connectivity_watchers");
   grpc_channel_watch_connectivity_state_import = (grpc_channel_watch_connectivity_state_type) GetProcAddress(library, "grpc_channel_watch_connectivity_state");
+  grpc_channel_support_connectivity_watcher_import = (grpc_channel_support_connectivity_watcher_type) GetProcAddress(library, "grpc_channel_support_connectivity_watcher");
   grpc_channel_create_call_import = (grpc_channel_create_call_type) GetProcAddress(library, "grpc_channel_create_call");
   grpc_channel_ping_import = (grpc_channel_ping_type) GetProcAddress(library, "grpc_channel_ping");
   grpc_channel_register_call_import = (grpc_channel_register_call_type) GetProcAddress(library, "grpc_channel_register_call");

src/ruby/ext/grpc/rb_grpc_imports.generated.h

@@ -251,6 +251,9 @@ extern grpc_channel_num_external_connectivity_watchers_type grpc_channel_num_ext
 typedef void(*grpc_channel_watch_connectivity_state_type)(grpc_channel *channel, grpc_connectivity_state last_observed_state, gpr_timespec deadline, grpc_completion_queue *cq, void *tag);
 extern grpc_channel_watch_connectivity_state_type grpc_channel_watch_connectivity_state_import;
 #define grpc_channel_watch_connectivity_state grpc_channel_watch_connectivity_state_import
+typedef int(*grpc_channel_support_connectivity_watcher_type)(grpc_channel *channel);
+extern grpc_channel_support_connectivity_watcher_type grpc_channel_support_connectivity_watcher_import;
+#define grpc_channel_support_connectivity_watcher grpc_channel_support_connectivity_watcher_import
 typedef grpc_call *(*grpc_channel_create_call_type)(grpc_channel *channel, grpc_call *parent_call, uint32_t propagation_mask, grpc_completion_queue *completion_queue, grpc_slice method, const grpc_slice *host, gpr_timespec deadline, void *reserved);
 extern grpc_channel_create_call_type grpc_channel_create_call_import;
 #define grpc_channel_create_call grpc_channel_create_call_import