Rename some signal and interrupt handling functions for consistency

The usual pattern for handling a signal is that the signal handler
sets a flag and calls SetLatch(MyLatch), and CHECK_FOR_INTERRUPTS() or
other code that is part of a wait loop calls another function to deal
with it. The naming of the functions involved was a bit inconsistent,
however. CHECK_FOR_INTERRUPTS() calls ProcessInterrupts() to do the
heavy-lifting, but the analogous functions in aux processes were
called HandleMainLoopInterrupts(), HandleStartupProcInterrupts(),
etc. Similarly, most subroutines of ProcessInterrupts() were called
Process*(), but some were called Handle*().

To make things less confusing, rename all the functions that are part
of the overall signal/interrupt handling system but are not executed
in a signal handler to e.g. ProcessSomething(), rather than
HandleSomething(). The "Process" prefix is now consistently used in
the non-signal-handler functions, and the "Handle" prefix in functions
that are part of signal handlers, except for some completely unrelated
functions that clearly have nothing to do with signal or interrupt
handling.

Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Discussion: https://www.postgresql.org/message-id/8a384b26-1499-41f6-be33-64b801fb98b8@iki.fi

1 files changed, 6 insertions, 6 deletions

diff --git a/src/backend/replication/logical/applyparallelworker.c b/src/backend/replication/logical/applyparallelworker.c
index 268b2675caa..d25085d3515 100644
--- a/src/backend/replication/logical/applyparallelworker.c
+++ b/src/backend/replication/logical/applyparallelworker.c
@@ -983,7 +983,7 @@ ParallelApplyWorkerMain(Datum main_arg)
  *
  * Note: this is called within a signal handler! All we can do is set a flag
  * that will cause the next CHECK_FOR_INTERRUPTS() to invoke
- * HandleParallelApplyMessages().
+ * ProcessParallelApplyMessages().
  */
 void
 HandleParallelApplyMessageInterrupt(void)
@@ -994,11 +994,11 @@ HandleParallelApplyMessageInterrupt(void)
 }
 
 /*
- * Handle a single protocol message received from a single parallel apply
+ * Process a single protocol message received from a single parallel apply
  * worker.
  */
 static void
-HandleParallelApplyMessage(StringInfo msg)
+ProcessParallelApplyMessage(StringInfo msg)
 {
 	char		msgtype;
 
@@ -1060,7 +1060,7 @@ HandleParallelApplyMessage(StringInfo msg)
  * Handle any queued protocol messages received from parallel apply workers.
  */
 void
-HandleParallelApplyMessages(void)
+ProcessParallelApplyMessages(void)
 {
 	ListCell   *lc;
 	MemoryContext oldcontext;
@@ -1083,7 +1083,7 @@ HandleParallelApplyMessages(void)
 	 */
 	if (!hpam_context)			/* first time through? */
 		hpam_context = AllocSetContextCreate(TopMemoryContext,
-											 "HandleParallelApplyMessages",
+											 "ProcessParallelApplyMessages",
 											 ALLOCSET_DEFAULT_SIZES);
 	else
 		MemoryContextReset(hpam_context);
@@ -1118,7 +1118,7 @@ HandleParallelApplyMessages(void)
 
 			initStringInfo(&msg);
 			appendBinaryStringInfo(&msg, data, nbytes);
-			HandleParallelApplyMessage(&msg);
+			ProcessParallelApplyMessage(&msg);
 			pfree(msg.data);
 		}
 		else