C++ (Cpp) ngx_shmtx_destroy Examples

Example #1

File: ngx_shmtx.c Project: ayoah/nginx

ngx_int_t
ngx_shmtx_create(ngx_shmtx_t *mtx, ngx_shmtx_sh_t *addr, u_char *name)
{
    if (mtx->name) {

        if (ngx_strcmp(name, mtx->name) == 0) {
            mtx->name = name;
            return NGX_OK;
        }

        ngx_shmtx_destroy(mtx);
    }

    mtx->fd = ngx_open_file(name, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN,
                            NGX_FILE_DEFAULT_ACCESS);

    if (mtx->fd == NGX_INVALID_FILE) {
        ngx_log_error(NGX_LOG_EMERG, ngx_cycle->log, ngx_errno,
                      ngx_open_file_n " \"%s\" failed", name);
        return NGX_ERROR;
    }

    if (ngx_delete_file(name) == NGX_FILE_ERROR) {
        ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno,
                      ngx_delete_file_n " \"%s\" failed", name);
    }

    mtx->name = name;

    return NGX_OK;
}

Example #2

File: ngx_http_session.c Project: higkoo/SEnginx

static ngx_int_t 
__ngx_http_session_delete(ngx_http_session_t *session)
{
    ngx_int_t ret;
    ngx_http_session_list_t          *session_list;
    
    session_list = ngx_http_session_shm_zone->data;
 
    if (!session->ref) {
        if (!session->next && !session->prev) {
            /* the only node in the chain */
            *(session->slot) = NULL;
        } else if (!session->prev && session->next) {
            /* first node in the chain */
            *(session->slot) = session->next;
            ((ngx_http_session_t *)(session->next))->prev = NULL;
            ((ngx_http_session_t *)(session->next))->slot = session->slot;
        } else if (session->next && session->prev) {
            /* node in the middle */
            ((ngx_http_session_t *)(session->prev))->next = session->next;
            ((ngx_http_session_t *)(session->next))->prev = session->prev;
        } else if (session->prev && !session->next) {
            /* last node in the chain */
            ((ngx_http_session_t *)(session->prev))->next = NULL;
        }

        session->next = session->prev = NULL;

        if (session->ev.timer_set) {
            ngx_del_timer(&session->ev);
        }

        if (!ngx_queue_empty(&session->redirect_queue_node)) {
            ngx_queue_remove(&session->redirect_queue_node);
            session_list->redirect_num--;
        }

        __ngx_http_session_ctx_delete(session);
        ngx_shmtx_destroy(&session->mutex);

        ngx_slab_free_locked(session_list->shpool, session);
        ret = NGX_OK;
    } else {
        ret = NGX_ERROR;
    }

    return ret;
}