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Unify several ways to tracking backend type

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Add a new global variable MyBackendType that uses the same BackendType
enum that was previously only used by the stats collector.  That way
several duplicate ways of checking what type a particular process is
can be simplified.  Since it's no longer just for stats, move to
miscinit.c and rename existing functions to match the expanded
purpose.

Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Reviewed-by: Kuntal Ghosh <kuntalghosh.2007@gmail.com>
Reviewed-by: Alvaro Herrera <alvherre@2ndquadrant.com>
Discussion: https://www.postgresql.org/message-id/flat/c65e5196-4f04-4ead-9353-6088c19615a3@2ndquadrant.com
This commit is contained in:
Peter Eisentraut
2020-03-11 16:36:40 +01:00
parent 1cc9c2412c
commit 8e8a0becb3
12 changed files with 126 additions and 164 deletions
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11
src/backend/utils/misc/ps_status.c
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@@ -28,6 +28,7 @@
#include "libpq/libpq.h"
#include "miscadmin.h"
#include "pgstat.h"
#include "utils/guc.h"
#include "utils/ps_status.h"
@@ -247,14 +248,20 @@ save_ps_display_args(int argc, char **argv)
/*
* Call this once during subprocess startup to set the identification
* values. At this point, the original argv[] array may be overwritten.
* values.
*
* If fixed_part is NULL, a default will be obtained from MyBackendType.
*
* At this point, the original argv[] array may be overwritten.
*/
void
init_ps_display(const char *fixed_part)
{
bool save_update_process_title;
Assert(fixed_part);
Assert(fixed_part || MyBackendType);
if (!fixed_part)
fixed_part = GetBackendTypeDesc(MyBackendType);
#ifndef PS_USE_NONE
/* no ps display for stand-alone backend */