Removing instances of exec_ctx being passed around in functions in

src/core. exec_ctx is now a thread_local pointer of type ExecCtx instead of
grpc_exec_ctx which is initialized whenever ExecCtx is instantiated. ExecCtx
also keeps track of the previous exec_ctx so that nesting of exec_ctx is
allowed. This means that there is only one exec_ctx being used at any
time. Also, grpc_exec_ctx_finish is called in the destructor of the
object, and the previous exec_ctx is restored to avoid breaking current
functionality. The code still explicitly calls grpc_exec_ctx_finish
because removing all such instances causes the code to break.

1 files changed, 3 insertions, 4 deletions

diff --git a/src/core/lib/iomgr/tcp_posix.h b/src/core/lib/iomgr/tcp_posix.h
index 47e78fa67e..f79d0fb8a3 100644
--- a/src/core/lib/iomgr/tcp_posix.h
+++ b/src/core/lib/iomgr/tcp_posix.h
@@ -41,8 +41,7 @@ extern grpc_tracer_flag grpc_tcp_trace;
 
 /* Create a tcp endpoint given a file desciptor and a read slice size.
    Takes ownership of fd. */
-grpc_endpoint *grpc_tcp_create(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
-                               const grpc_channel_args *args,
+grpc_endpoint *grpc_tcp_create(grpc_fd *fd, const grpc_channel_args *args,
                                const char *peer_string);
 
 /* Return the tcp endpoint's fd, or -1 if this is not available. Does not
@@ -54,8 +53,8 @@ int grpc_tcp_fd(grpc_endpoint *ep);
 /* Destroy the tcp endpoint without closing its fd. *fd will be set and done
  * will be called when the endpoint is destroyed.
  * Requires: ep must be a tcp endpoint and fd must not be NULL. */
-void grpc_tcp_destroy_and_release_fd(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
-                                     int *fd, grpc_closure *done);
+void grpc_tcp_destroy_and_release_fd(grpc_endpoint *ep, int *fd,
+                                     grpc_closure *done);
 
 #ifdef __cplusplus
 }