403Webshell
Server IP : 3.138.164.131  /  Your IP : 216.73.216.136
Web Server : Apache
System : Linux ns1.techtime.me 4.18.0-147.8.1.el8.lve.1.x86_64 #1 SMP Mon Jun 29 09:55:57 EDT 2020 x86_64
User : injazaat ( 1471)
PHP Version : 8.1.20
Disable Function : NONE
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : OFF  |  Pkexec : OFF
Directory :  /proc/self/root/opt/alt/postgresql11/usr/include/pgsql/server/storage/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :


[ Back ]     

Current File : /proc/self/root/opt/alt/postgresql11/usr/include/pgsql/server/storage/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 */

Youez - 2016 - github.com/yon3zu
LinuXploit