freem/src/shmmgr.c - diff

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Diff for /freem/src/shmmgr.c between versions 1.14 and 1.18

version 1.14, 2025/05/08 14:47:26	version 1.18, 2025/05/16 04:25:15
Line 24	Line 24
* along with FreeM. If not, see <https://www.gnu.org/licenses/>.	* along with FreeM. If not, see <https://www.gnu.org/licenses/>.
*	*
* $Log$	* $Log$
	* Revision 1.18 2025/05/16 04:25:15 snw
	* Make shm seed NULL on ARM
	*
	* Revision 1.17 2025/05/12 18:18:00 snw
	* Further work on shared memory
	*
	* Revision 1.16 2025/05/12 14:26:15 snw
	* Revert bad change in shared memory manager
	*
	* Revision 1.15 2025/05/09 19:44:50 snw
	* Begin shm rework
	*
* Revision 1.14 2025/05/08 14:47:26 snw	* Revision 1.14 2025/05/08 14:47:26 snw
* Break everything to begin shared memory rewrite	* Break everything to begin shared memory rewrite
*	*
Line 122 short shm_init(const size_t seg_size)	Line 134 short shm_init(const size_t seg_size)
NULLPTRCHK(shm_config,"shm_init");	NULLPTRCHK(shm_config,"shm_init");

/* figure out how many pages we can fit in the segment, accounting for header size */	/* figure out how many pages we can fit in the segment, accounting for header size */
shm_config->pgct = (seg_size / pg_size) - sizeof (shm_hdr_t);	shm_config->pgct = (seg_size - sizeof (shm_hdr_t)) / pg_size;

/* how big will the alloc map be? */	/* how big will the alloc map be? */
alloc_map_size = shm_config->pgct * sizeof (shm_page_t);	alloc_map_size = shm_config->pgct * sizeof (shm_page_t);
Line 140 short shm_init(const size_t seg_size)	Line 152 short shm_init(const size_t seg_size)
return SHMS_GET_ERR;	return SHMS_GET_ERR;
}	}

#if !defined(__arm__)
shm_config->dta = shmat (shm_config->seg_id, NULL, 0);	shm_config->dta = shmat (shm_config->seg_id, NULL, 0);
#else
shm_config->dta = shmat (shm_config->seg_id, (void *) 0x1000000, 0);
#endif

if (shm_config->dta == (void *) -1) {	if (shm_config->dta == (void *) -1) {
logprintf (FM_LOG_FATAL, "shm_init: shmat() failed (error code %d [%s])", errno, strerror (errno));	logprintf (FM_LOG_FATAL, "shm_init: shmat() failed (error code %d [%s])", errno, strerror (errno));
Line 169 short shm_init(const size_t seg_size)	Line 177 short shm_init(const size_t seg_size)
daemon_chk = kill (shm_config->hdr->first_process, 0);	daemon_chk = kill (shm_config->hdr->first_process, 0);

if (daemon_chk == -1 && errno == ESRCH) {	if (daemon_chk == -1 && errno == ESRCH) {

logprintf (FM_LOG_WARNING, "shm_init: recovering from crashed daemon pid %ld", shm_config->hdr->first_process);	logprintf (FM_LOG_WARNING, "shm_init: recovering from crashed daemon pid %ld", shm_config->hdr->first_process);

first_process = TRUE;	first_process = TRUE;

shm_daemon_init ();	shm_daemon_init ();

}	}
else {	else {


first_process = FALSE;	first_process = FALSE;

semid_shm = semget (shm_sk, 1, 0);	semid_shm = semget (shm_sk, 1, 0);
Line 187 short shm_init(const size_t seg_size)	Line 189 short shm_init(const size_t seg_size)
logprintf (FM_LOG_FATAL, "shm_init: could not attach to shared memory semaphore [%s]", strerror (errno));	logprintf (FM_LOG_FATAL, "shm_init: could not attach to shared memory semaphore [%s]", strerror (errno));
}	}


shm_config->buf = SHMALIGN(shm_config->dta + (sizeof (shm_hdr_t) * shm_config->pgct));	shm_config->buf = SHMALIGN(shm_config->dta + (sizeof (shm_hdr_t) * shm_config->pgct));


}	}

}	}

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Removed from v.1.14
changed lines
	Added in v.1.18