mirror of
https://github.com/postgres/postgres.git
synced 2025-10-29 22:49:41 +03:00
0a78320057
This includes removing tabs after periods in C comments, which was applied to back branches, so this change should not effect backpatching.
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/*--------------------------------------------------------------------------
|
|
*
|
|
* test_shm_mq.h
|
|
* Definitions for shared memory message queues
|
|
*
|
|
* Copyright (C) 2013, PostgreSQL Global Development Group
|
|
*
|
|
* IDENTIFICATION
|
|
* contrib/test_shm_mq/test_shm_mq.h
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
#ifndef TEST_SHM_MQ_H
|
|
#define TEST_SHM_MQ_H
|
|
|
|
#include "storage/dsm.h"
|
|
#include "storage/shm_mq.h"
|
|
#include "storage/spin.h"
|
|
|
|
/* Identifier for shared memory segments used by this extension. */
|
|
#define PG_TEST_SHM_MQ_MAGIC 0x79fb2447
|
|
|
|
/*
|
|
* This structure is stored in the dynamic shared memory segment. We use
|
|
* it to determine whether all workers started up OK and successfully
|
|
* attached to their respective shared message queues.
|
|
*/
|
|
typedef struct
|
|
{
|
|
slock_t mutex;
|
|
int workers_total;
|
|
int workers_attached;
|
|
int workers_ready;
|
|
} test_shm_mq_header;
|
|
|
|
/* Set up dynamic shared memory and background workers for test run. */
|
|
extern void test_shm_mq_setup(int64 queue_size, int32 nworkers,
|
|
dsm_segment **seg, shm_mq_handle **output,
|
|
shm_mq_handle **input);
|
|
|
|
/* Main entrypoint for a worker. */
|
|
extern void test_shm_mq_main(Datum);
|
|
|
|
#endif
|