mirror of
https://github.com/php/php-src.git
synced 2024-12-01 13:54:10 +08:00
99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| Zend OPcache |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1998-2018 The PHP Group |
|
|
+----------------------------------------------------------------------+
|
|
| This source file is subject to version 3.01 of the PHP license, |
|
|
| that is bundled with this package in the file LICENSE, and is |
|
|
| available through the world-wide-web at the following url: |
|
|
| http://www.php.net/license/3_01.txt |
|
|
| If you did not receive a copy of the PHP license and are unable to |
|
|
| obtain it through the world-wide-web, please send a note to |
|
|
| license@php.net so we can mail you a copy immediately. |
|
|
+----------------------------------------------------------------------+
|
|
| Authors: Andi Gutmans <andi@php.net> |
|
|
| Zeev Suraski <zeev@php.net> |
|
|
| Stanislav Malyshev <stas@zend.com> |
|
|
| Dmitry Stogov <dmitry@php.net> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
#include "zend_shared_alloc.h"
|
|
|
|
#ifdef USE_SHM_OPEN
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <sys/mman.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
|
|
typedef struct {
|
|
zend_shared_segment common;
|
|
int shm_fd;
|
|
} zend_shared_segment_posix;
|
|
|
|
static int create_segments(size_t requested_size, zend_shared_segment_posix ***shared_segments_p, int *shared_segments_count, char **error_in)
|
|
{
|
|
zend_shared_segment_posix *shared_segment;
|
|
char shared_segment_name[sizeof("/ZendAccelerator.") + 20];
|
|
|
|
*shared_segments_count = 1;
|
|
*shared_segments_p = (zend_shared_segment_posix **) calloc(1, sizeof(zend_shared_segment_posix) + sizeof(void *));
|
|
if (!*shared_segments_p) {
|
|
*error_in = "calloc";
|
|
return ALLOC_FAILURE;
|
|
}
|
|
shared_segment = (zend_shared_segment_posix *)((char *)(*shared_segments_p) + sizeof(void *));
|
|
(*shared_segments_p)[0] = shared_segment;
|
|
|
|
sprintf(shared_segment_name, "/ZendAccelerator.%d", getpid());
|
|
shared_segment->shm_fd = shm_open(shared_segment_name, O_RDWR|O_CREAT|O_TRUNC, 0600);
|
|
if (shared_segment->shm_fd == -1) {
|
|
*error_in = "shm_open";
|
|
return ALLOC_FAILURE;
|
|
}
|
|
|
|
if (ftruncate(shared_segment->shm_fd, requested_size) != 0) {
|
|
*error_in = "ftruncate";
|
|
shm_unlink(shared_segment_name);
|
|
return ALLOC_FAILURE;
|
|
}
|
|
|
|
shared_segment->common.p = mmap(0, requested_size, PROT_READ | PROT_WRITE, MAP_SHARED, shared_segment->shm_fd, 0);
|
|
if (shared_segment->common.p == MAP_FAILED) {
|
|
*error_in = "mmap";
|
|
shm_unlink(shared_segment_name);
|
|
return ALLOC_FAILURE;
|
|
}
|
|
shm_unlink(shared_segment_name);
|
|
|
|
shared_segment->common.pos = 0;
|
|
shared_segment->common.size = requested_size;
|
|
|
|
return ALLOC_SUCCESS;
|
|
}
|
|
|
|
static int detach_segment(zend_shared_segment_posix *shared_segment)
|
|
{
|
|
munmap(shared_segment->common.p, shared_segment->common.size);
|
|
close(shared_segment->shm_fd);
|
|
return 0;
|
|
}
|
|
|
|
static size_t segment_type_size(void)
|
|
{
|
|
return sizeof(zend_shared_segment_posix);
|
|
}
|
|
|
|
zend_shared_memory_handlers zend_alloc_posix_handlers = {
|
|
(create_segments_t)create_segments,
|
|
(detach_segment_t)detach_segment,
|
|
segment_type_size
|
|
};
|
|
|
|
#endif /* USE_SHM_OPEN */
|