diff options
Diffstat (limited to 'app/nginx/src/os/unix/ngx_shmem.c')
| -rw-r--r-- | app/nginx/src/os/unix/ngx_shmem.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/app/nginx/src/os/unix/ngx_shmem.c b/app/nginx/src/os/unix/ngx_shmem.c deleted file mode 100644 index 3ec7cbf..0000000 --- a/app/nginx/src/os/unix/ngx_shmem.c +++ /dev/null @@ -1,126 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#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 |