Make grpc_call_log_batch take const char*

src/core/lib/surface/call.h

@@ -89,7 +89,7 @@ grpc_call_error grpc_call_start_batch_and_execute(grpc_exec_ctx *exec_ctx,
 /* Given the top call_element, get the call object. */
 grpc_call *grpc_call_from_top_element(grpc_call_element *surface_element);
 
-void grpc_call_log_batch(char *file, int line, gpr_log_severity severity,
+void grpc_call_log_batch(const char *file, int line, gpr_log_severity severity,
                          grpc_call *call, const grpc_op *ops, size_t nops,
                          void *tag);
 

src/core/lib/surface/call_log_batch.c

@@ -103,7 +103,7 @@ char *grpc_op_string(const grpc_op *op) {
   return out;
 }
 
-void grpc_call_log_batch(char *file, int line, gpr_log_severity severity,
+void grpc_call_log_batch(const char *file, int line, gpr_log_severity severity,
                          grpc_call *call, const grpc_op *ops, size_t nops,
                          void *tag) {
   char *tmp;

src/cpp/server/server_cc.cc

@@ -45,9 +45,6 @@
 #include "src/cpp/thread_manager/thread_manager.h"
 
 namespace grpc {
-namespace {
-constexpr char this_file[] = __FILE__;
-}  // namespace
 
 class DefaultGlobalCallbacks final : public Server::GlobalCallbacks {
  public:
@@ -614,8 +611,8 @@ void Server::PerformOpsOnCall(CallOpSetInterface* ops, Call* call) {
   auto result = grpc_call_start_batch(call->call(), cops, nops, ops, nullptr);
   if (result != GRPC_CALL_OK) {
     gpr_log(GPR_ERROR, "Fatal: grpc_call_start_batch returned %d", result);
-    grpc_call_log_batch(const_cast<char*>(this_file), __LINE__,
-                        GPR_LOG_SEVERITY_ERROR, call->call(), cops, nops, ops);
+    grpc_call_log_batch(__FILE__, __LINE__, GPR_LOG_SEVERITY_ERROR,
+                        call->call(), cops, nops, ops);
     abort();
   }
 }