113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
/* ----------
|
|
* backend_progress.c
|
|
*
|
|
* Command progress reporting infrastructure.
|
|
*
|
|
* Copyright (c) 2001-2023, PostgreSQL Global Development Group
|
|
*
|
|
* src/backend/utils/activity/backend_progress.c
|
|
* ----------
|
|
*/
|
|
#include "postgres.h"
|
|
|
|
#include "port/atomics.h" /* for memory barriers */
|
|
#include "utils/backend_progress.h"
|
|
#include "utils/backend_status.h"
|
|
|
|
|
|
/*-----------
|
|
* pgstat_progress_start_command() -
|
|
*
|
|
* Set st_progress_command (and st_progress_command_target) in own backend
|
|
* entry. Also, zero-initialize st_progress_param array.
|
|
*-----------
|
|
*/
|
|
void
|
|
pgstat_progress_start_command(ProgressCommandType cmdtype, Oid relid)
|
|
{
|
|
volatile PgBackendStatus *beentry = MyBEEntry;
|
|
|
|
if (!beentry || !pgstat_track_activities)
|
|
return;
|
|
|
|
PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
|
|
beentry->st_progress_command = cmdtype;
|
|
beentry->st_progress_command_target = relid;
|
|
MemSet(&beentry->st_progress_param, 0, sizeof(beentry->st_progress_param));
|
|
PGSTAT_END_WRITE_ACTIVITY(beentry);
|
|
}
|
|
|
|
/*-----------
|
|
* pgstat_progress_update_param() -
|
|
*
|
|
* Update index'th member in st_progress_param[] of own backend entry.
|
|
*-----------
|
|
*/
|
|
void
|
|
pgstat_progress_update_param(int index, int64 val)
|
|
{
|
|
volatile PgBackendStatus *beentry = MyBEEntry;
|
|
|
|
Assert(index >= 0 && index < PGSTAT_NUM_PROGRESS_PARAM);
|
|
|
|
if (!beentry || !pgstat_track_activities)
|
|
return;
|
|
|
|
PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
|
|
beentry->st_progress_param[index] = val;
|
|
PGSTAT_END_WRITE_ACTIVITY(beentry);
|
|
}
|
|
|
|
/*-----------
|
|
* pgstat_progress_update_multi_param() -
|
|
*
|
|
* Update multiple members in st_progress_param[] of own backend entry.
|
|
* This is atomic; readers won't see intermediate states.
|
|
*-----------
|
|
*/
|
|
void
|
|
pgstat_progress_update_multi_param(int nparam, const int *index,
|
|
const int64 *val)
|
|
{
|
|
volatile PgBackendStatus *beentry = MyBEEntry;
|
|
int i;
|
|
|
|
if (!beentry || !pgstat_track_activities || nparam == 0)
|
|
return;
|
|
|
|
PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
|
|
|
|
for (i = 0; i < nparam; ++i)
|
|
{
|
|
Assert(index[i] >= 0 && index[i] < PGSTAT_NUM_PROGRESS_PARAM);
|
|
|
|
beentry->st_progress_param[index[i]] = val[i];
|
|
}
|
|
|
|
PGSTAT_END_WRITE_ACTIVITY(beentry);
|
|
}
|
|
|
|
/*-----------
|
|
* pgstat_progress_end_command() -
|
|
*
|
|
* Reset st_progress_command (and st_progress_command_target) in own backend
|
|
* entry. This signals the end of the command.
|
|
*-----------
|
|
*/
|
|
void
|
|
pgstat_progress_end_command(void)
|
|
{
|
|
volatile PgBackendStatus *beentry = MyBEEntry;
|
|
|
|
if (!beentry || !pgstat_track_activities)
|
|
return;
|
|
|
|
if (beentry->st_progress_command == PROGRESS_COMMAND_INVALID)
|
|
return;
|
|
|
|
PGSTAT_BEGIN_WRITE_ACTIVITY(beentry);
|
|
beentry->st_progress_command = PROGRESS_COMMAND_INVALID;
|
|
beentry->st_progress_command_target = InvalidOid;
|
|
PGSTAT_END_WRITE_ACTIVITY(beentry);
|
|
}
|