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📁 ..
📄 backendid.h(730 B)
📄 barrier.h(6.6 KB)
📄 block.h(3.21 KB)
📄 buf.h(1.06 KB)
📄 buf_internals.h(7.79 KB)
📄 buffile.h(1.67 KB)
📄 bufmgr.h(7.2 KB)
📄 bufpage.h(12.91 KB)
📄 copydir.h(561 B)
📄 fd.h(3.56 KB)
📄 freespace.h(1.23 KB)
📄 fsm_internals.h(2.24 KB)
📄 indexfsm.h(795 B)
📄 ipc.h(2.54 KB)
📄 item.h(469 B)
📄 itemid.h(4.24 KB)
📄 itemptr.h(3.72 KB)
📄 large_object.h(2.89 KB)
📄 latch.h(5.28 KB)
📄 lmgr.h(3.22 KB)
📄 lock.h(21.16 KB)
📄 lwlock.h(3.58 KB)
📄 off.h(1.58 KB)
📄 pg_sema.h(2.41 KB)
📄 pg_shmem.h(1.95 KB)
📄 pmsignal.h(2.03 KB)
📄 pos.h(1.56 KB)
📄 predicate.h(2.56 KB)
📄 predicate_internals.h(16.98 KB)
📄 proc.h(9.58 KB)
📄 procarray.h(2.96 KB)
📄 procsignal.h(1.76 KB)
📄 reinit.h(588 B)
📄 relfilenode.h(4.31 KB)
📄 s_lock.h(28 KB)
📄 shmem.h(2.63 KB)
📄 sinval.h(4.97 KB)
📄 sinvaladt.h(1.49 KB)
📄 smgr.h(5.67 KB)
📄 spin.h(2.71 KB)
📄 standby.h(3.97 KB)

Editing: ipc.h

/*-------------------------------------------------------------------------
 *
 * ipc.h
 *	  POSTGRES inter-process communication definitions.
 *
 * This file is misnamed, as it no longer has much of anything directly
 * to do with IPC.  The functionality here is concerned with managing
 * exit-time cleanup for either a postmaster or a backend.
 *
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/storage/ipc.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef IPC_H
#define IPC_H

typedef void (*pg_on_exit_callback) (int code, Datum arg);
typedef void (*shmem_startup_hook_type) (void);

/*----------
 * API for handling cleanup that must occur during either ereport(ERROR)
 * or ereport(FATAL) exits from a block of code.  (Typical examples are
 * undoing transient changes to shared-memory state.)
 *
 *		PG_ENSURE_ERROR_CLEANUP(cleanup_function, arg);
 *		{
 *			... code that might throw ereport(ERROR) or ereport(FATAL) ...
 *		}
 *		PG_END_ENSURE_ERROR_CLEANUP(cleanup_function, arg);
 *
 * where the cleanup code is in a function declared per pg_on_exit_callback.
 * The Datum value "arg" can carry any information the cleanup function
 * needs.
 *
 * This construct ensures that cleanup_function() will be called during
 * either ERROR or FATAL exits.  It will not be called on successful
 * exit from the controlled code.  (If you want it to happen then too,
 * call the function yourself from just after the construct.)
 *
 * Note: the macro arguments are multiply evaluated, so avoid side-effects.
 *----------
 */
#define PG_ENSURE_ERROR_CLEANUP(cleanup_function, arg)	\
	do { \
		on_shmem_exit(cleanup_function, arg); \
		PG_TRY()

#define PG_END_ENSURE_ERROR_CLEANUP(cleanup_function, arg)	\
		cancel_shmem_exit(cleanup_function, arg); \
		PG_CATCH(); \
		{ \
			cancel_shmem_exit(cleanup_function, arg); \
			cleanup_function (0, arg); \
			PG_RE_THROW(); \
		} \
		PG_END_TRY(); \
	} while (0)

/* ipc.c */
extern bool proc_exit_inprogress;

extern void proc_exit(int code);
extern void shmem_exit(int code);
extern void on_proc_exit(pg_on_exit_callback function, Datum arg);
extern void on_shmem_exit(pg_on_exit_callback function, Datum arg);
extern void cancel_shmem_exit(pg_on_exit_callback function, Datum arg);
extern void on_exit_reset(void);

/* ipci.c */
extern PGDLLIMPORT shmem_startup_hook_type shmem_startup_hook;

extern void CreateSharedMemoryAndSemaphores(bool makePrivate, int port);

#endif   /* IPC_H */

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Editing: ipc.h

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