version 1.2, 2025/02/28 20:51:20
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version 1.7, 2025/04/09 19:52:02
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/* |
/* |
* * |
* $Id$ |
* * * |
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* * * |
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* *************** |
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* * * * * |
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* * MUMPS * |
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* * * * * |
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* *************** |
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* * * |
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* * * |
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* * |
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* |
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* shmmgr.c |
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* shared memory manager |
* shared memory manager |
* |
* |
* |
* |
* Author: Serena Willis <jpw@coherent-logic.com> |
* Author: Serena Willis <snw@coherent-logic.com> |
* Copyright (C) 1998 MUG Deutschland |
* Copyright (C) 1998 MUG Deutschland |
* Copyright (C) 2020 Coherent Logic Development LLC |
* Copyright (C) 2020, 2025 Coherent Logic Development LLC |
* |
* |
* |
* |
* This file is part of FreeM. |
* This file is part of FreeM. |
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* You should have received a copy of the GNU Affero Public License |
* You should have received a copy of the GNU Affero Public License |
* along with FreeM. If not, see <https://www.gnu.org/licenses/>. |
* along with FreeM. If not, see <https://www.gnu.org/licenses/>. |
* |
* |
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* $Log$ |
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* Revision 1.7 2025/04/09 19:52:02 snw |
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* Eliminate as many warnings as possible while building with -Wall |
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* |
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* Revision 1.6 2025/04/04 19:43:18 snw |
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* Switch to using environment catalog to determine user and group for environment, and remove -u and -g flags from freem |
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* |
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* Revision 1.5 2025/03/24 02:56:50 snw |
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* Shared memory compatibility fixes for OS/2 |
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* |
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* Revision 1.4 2025/03/09 19:50:47 snw |
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* Second phase of REUSE compliance and header reformat |
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* |
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* |
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* SPDX-FileCopyrightText: (C) 2025 Coherent Logic Development LLC |
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* SPDX-License-Identifier: AGPL-3.0-or-later |
**/ |
**/ |
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#include <stdlib.h> |
#include <stdlib.h> |
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#include <sys/ipc.h> |
#include <sys/ipc.h> |
#include <sys/sem.h> |
#include <sys/sem.h> |
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#if !defined(__OpenBSD__) && !defined(__APPLE__) |
#if !defined(__OpenBSD__) && !defined(__APPLE__) && !defined(__OS2__) |
union semun { |
union semun { |
int val; /* Value for SETVAL */ |
int val; /* Value for SETVAL */ |
struct semid_ds *buf; /* Buffer for IPC_STAT, IPC_SET */ |
struct semid_ds *buf; /* Buffer for IPC_STAT, IPC_SET */ |
Line 75 shm_config_t *shm_config = (shm_config_t
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Line 79 shm_config_t *shm_config = (shm_config_t
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short shm_init(const size_t seg_size) |
short shm_init(const size_t seg_size) |
{ |
{ |
union semun arg; |
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size_t alloc_map_size; |
size_t alloc_map_size; |
long pg_size; |
long pg_size; |
register int i; |
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key_t shm_sk; |
key_t shm_sk; |
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shm_sk = ftok (config_file, 5); |
shm_sk = ftok (config_file, 5); |
Line 97 short shm_init(const size_t seg_size)
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Line 99 short shm_init(const size_t seg_size)
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shm_config->key = ftok (config_file, 1); |
shm_config->key = ftok (config_file, 1); |
shm_config->pgsiz = pg_size; |
shm_config->pgsiz = pg_size; |
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shm_config->seg_id = shmget (shm_config->key, shm_config->segsiz, 0660 | IPC_CREAT); |
shm_config->seg_id = shmget (shm_config->key, shm_config->segsiz, 0770 | IPC_CREAT); |
if (shm_config->seg_id == -1) { |
if (shm_config->seg_id == -1) { |
if (errno == 22) { |
if (errno == 22) { |
fprintf (stderr, "shm_init: cannot get shared memory segment of %ld bytes\r\n\r\n", (unsigned long) shm_config->segsiz); |
fprintf (stderr, "shm_init: cannot get shared memory segment of %ld bytes\r\n\r\n", (unsigned long) shm_config->segsiz); |
Line 199 short shm_init(const size_t seg_size)
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Line 201 short shm_init(const size_t seg_size)
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void shm_daemon_init(void) |
void shm_daemon_init(void) |
{ |
{ |
union semun arg; |
union semun arg; |
size_t alloc_map_size; |
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key_t shm_sk; |
key_t shm_sk; |
register int i; |
register int i; |
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Line 475 void shm_dump(void)
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Line 476 void shm_dump(void)
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printf ("SHARED MEMORY CONFIGURATION\r\n"); |
printf ("SHARED MEMORY CONFIGURATION\r\n"); |
printf (" pgsiz %ld\r\n", (unsigned long) shm_config->pgsiz); |
printf (" pgsiz %ld\r\n", (unsigned long) shm_config->pgsiz); |
printf (" pgct %d\r\n", shm_config->pgct); |
printf (" pgct %d\r\n", shm_config->pgct); |
printf (" key %ld\r\n", shm_config->key); |
printf (" key %d\r\n", shm_config->key); |
printf (" segid %d\r\n", shm_config->seg_id); |
printf (" segid %d\r\n", shm_config->seg_id); |
printf (" sizeof shm_page_t %ld\r\n", (long) sizeof (shm_page_t)); |
printf (" sizeof shm_page_t %ld\r\n", (long) sizeof (shm_page_t)); |
printf (" segsiz %ld\r\n", (long) shm_config->segsiz); |
printf (" segsiz %ld\r\n", (long) shm_config->segsiz); |