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/****************************************************************
* *
* Copyright (c) 2001-2023 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/* gtm_ipc.h - interlude to <ipc.h> system header file. */
#ifndef GTM_IPCH
#define GTM_IPCH
#include <sys/ipc.h>
#include "gtm_fcntl.h" /* Needed for AIX's silly open to open64 translations (open used in JNLPOOL_CLEAR_FIELDS macro) */
#ifdef __MVS__
/* For shmget with __IPC_MEGA or _LP64 */
#define MEGA_BOUND (1024 * 1024)
#endif
#define FTOK gtm_ftok
#define FTOK_OLD ftok
#define JNLPOOL_CLEAR_FIELDS(JNLPOOL) \
{ \
GBLREF int pool_init; \
\
assert(NULL != JNLPOOL); \
JNLPOOL->jnlpool_ctl = NULL; \
JNLPOOL->gtmsrc_lcl_array = NULL; \
JNLPOOL->gtmsource_local_array = NULL; \
JNLPOOL->jnldata_base = NULL; \
JNLPOOL->repl_inst_filehdr = NULL; \
JNLPOOL->jnlpool_dummy_reg->open = FALSE; \
JNLPOOL->gd_ptr = NULL; \
if (JNLPOOL->pool_init && (0 < pool_init)) \
pool_init--; \
JNLPOOL->pool_init = JNLPOOL->recv_pool = FALSE; \
}
#define JNLPOOL_SHMDT(JNLPOOL, RC, SAVE_ERRNO) \
{ \
jnlpool_ctl_ptr_t save_jnlpool_ctl; \
intrpt_state_t prev_intrpt_state; \
\
SAVE_ERRNO = 0; /* clear any left-over value */ \
assert(NULL != JNLPOOL); \
assert(NULL != JNLPOOL->jnlpool_ctl); \
assert((NULL == JNLPOOL->jnlpool_dummy_reg) \
|| !REG2CSA(JNLPOOL->jnlpool_dummy_reg)->now_crit); \
DEFER_INTERRUPTS(INTRPT_IN_SHMDT, prev_intrpt_state); \
save_jnlpool_ctl = JNLPOOL->jnlpool_ctl; \
JNLPOOL->jnlpool_ctl = NULL; \
RC = SHMDT(save_jnlpool_ctl); \
SAVE_ERRNO = errno; \
JNLPOOL_CLEAR_FIELDS(JNLPOOL); \
ENABLE_INTERRUPTS(INTRPT_IN_SHMDT, prev_intrpt_state); \
}
key_t gtm_ftok(const char *path, int id);
unsigned int gtm_stat_hash(struct stat *statbuf);
#define IPC_REMOVED(ERRNO) ((EINVAL == ERRNO) || (EIDRM == ERRNO)) /* EIDRM is only on Linux */
#define SEM_REMOVED(ERRNO) IPC_REMOVED(ERRNO)
#define SHM_REMOVED(ERRNO) IPC_REMOVED(ERRNO)
#endif
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