Add ExecCtx

Author: yashykt

src/cpp/ext/otel/BUILD

@@ -64,6 +64,7 @@ grpc_cc_library(
     deps = [
         "//:call_tracer",
         "//:config",
+        "//:exec_ctx",
         "//:gpr",
         "//:gpr_platform",
         "//:grpc++",

src/cpp/ext/otel/otel_client_call_tracer.cc

@@ -50,6 +50,7 @@
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/event_engine/utils.h"
 #include "src/core/lib/experiments/experiments.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/promise/context.h"
 #include "src/core/lib/resource_quota/arena.h"
 #include "src/core/lib/slice/slice.h"
@@ -82,6 +83,7 @@ class OpenTelemetryPluginImpl::ClientCallTracer::CallAttemptTracer<
   }
 
   ~TcpCallTracer() override {
+    grpc_core::ExecCtx exec_ctx;
     auto* arena = call_attempt_tracer_->parent_->arena_;
     // The CallAttemptTracer can be allocated on the arena and hence needs to be
     // reset before unreffing the call.

src/cpp/ext/otel/otel_server_call_tracer.cc

@@ -41,6 +41,7 @@
 #include "src/core/lib/event_engine/utils.h"
 #include "src/core/lib/experiments/experiments.h"
 #include "src/core/lib/iomgr/error.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/slice/slice.h"
 #include "src/core/lib/slice/slice_buffer.h"
 #include "src/core/lib/surface/call.h"
@@ -66,6 +67,7 @@ class OpenTelemetryPluginImpl::ServerCallTracer::TcpCallTracer
   }
 
   ~TcpCallTracer() override {
+    grpc_core::ExecCtx exec_ctx;
     auto* arena = server_call_tracer_->arena_;
     // The ServerCallTracer is allocated on the arena and hence needs to be
     // reset before unreffing the call.