mirror of
https://github.com/nginx/nginx.git
synced 2024-12-16 14:19:00 +08:00
4ecb4d721d
*) Feature: the -v switch.
*) Bugfix: the segmentation fault may occurred if the SSI page has
remote subrequests.
*) Bugfix: in FastCGI handling.
*) Bugfix: if the perl modules path was not set using
--with-perl_modules_path=PATH or the "perl_modules", then the
segmentation fault was occurred.
126 lines
2.8 KiB
C
126 lines
2.8 KiB
C
|
|
/*
|
|
* Copyright (C) Igor Sysoev
|
|
*/
|
|
|
|
|
|
#include <ngx_config.h>
|
|
#include <ngx_core.h>
|
|
|
|
|
|
#if (NGX_HAVE_MAP_ANON)
|
|
|
|
ngx_int_t
|
|
ngx_shm_alloc(ngx_shm_t *shm)
|
|
{
|
|
shm->addr = (u_char *) mmap(NULL, shm->size,
|
|
PROT_READ|PROT_WRITE,
|
|
MAP_ANON|MAP_SHARED, -1, 0);
|
|
|
|
if (shm->addr == MAP_FAILED) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"mmap(MAP_ANON|MAP_SHARED, %uz) failed", shm->size);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
void
|
|
ngx_shm_free(ngx_shm_t *shm)
|
|
{
|
|
if (munmap((void *) shm->addr, shm->size) == -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"munmap(%p, %uz) failed", shm->addr, shm->size);
|
|
}
|
|
}
|
|
|
|
#elif (NGX_HAVE_MAP_DEVZERO)
|
|
|
|
ngx_int_t
|
|
ngx_shm_alloc(ngx_shm_t *shm)
|
|
{
|
|
ngx_fd_t fd;
|
|
|
|
fd = open("/dev/zero", O_RDWR);
|
|
|
|
if (fd == -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"open(\"/dev/zero\") failed");
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
shm->addr = (u_char *) mmap(NULL, shm->size, PROT_READ|PROT_WRITE,
|
|
MAP_SHARED, fd, 0);
|
|
|
|
if (shm->addr == MAP_FAILED) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"mmap(/dev/zero, MAP_SHARED, %uz) failed", shm->size);
|
|
}
|
|
|
|
if (close(fd) == -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"close(\"/dev/zero\") failed");
|
|
}
|
|
|
|
return (shm->addr == MAP_FAILED) ? NGX_ERROR : NGX_OK;
|
|
}
|
|
|
|
|
|
void
|
|
ngx_shm_free(ngx_shm_t *shm)
|
|
{
|
|
if (munmap((void *) shm->addr, shm->size) == -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"munmap(%p, %uz) failed", shm->addr, shm->size);
|
|
}
|
|
}
|
|
|
|
#elif (NGX_HAVE_SYSVSHM)
|
|
|
|
#include <sys/ipc.h>
|
|
#include <sys/shm.h>
|
|
|
|
|
|
ngx_int_t
|
|
ngx_shm_alloc(ngx_shm_t *shm)
|
|
{
|
|
int id;
|
|
|
|
id = shmget(IPC_PRIVATE, shm->size, (SHM_R|SHM_W|IPC_CREAT));
|
|
|
|
if (id == -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"shmget(%uz) failed", shm->size);
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_CORE, shm->log, 0, "shmget id: %d", id);
|
|
|
|
shm->addr = shmat(id, NULL, 0);
|
|
|
|
if (shm->addr == (void *) -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, "shmat() failed");
|
|
}
|
|
|
|
if (shmctl(id, IPC_RMID, NULL) == -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"shmctl(IPC_RMID) failed");
|
|
}
|
|
|
|
return (shm->addr == (void *) -1) ? NGX_ERROR : NGX_OK;
|
|
}
|
|
|
|
|
|
void
|
|
ngx_shm_free(ngx_shm_t *shm)
|
|
{
|
|
if (shmdt(shm->addr) == -1) {
|
|
ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
|
|
"shmdt(%p) failed", shm->addr);
|
|
}
|
|
}
|
|
|
|
#endif
|