| /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| /* |
| * This file is private to libuv. It provides common functionality to both |
| * Windows and Unix backends. |
| */ |
| |
| #ifndef UV_COMMON_H_ |
| #define UV_COMMON_H_ |
| |
| #include <assert.h> |
| #include <stddef.h> |
| |
| #if defined(_MSC_VER) && _MSC_VER < 1600 |
| # include "uv-private/stdint-msvc2008.h" |
| #else |
| # include <stdint.h> |
| #endif |
| |
| #include "uv.h" |
| #include "tree.h" |
| |
| |
| #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) |
| |
| #define container_of(ptr, type, member) \ |
| ((type *) ((char *) (ptr) - offsetof(type, member))) |
| |
| #ifdef _MSC_VER |
| # define UNUSED /* empty */ |
| # define INLINE __inline |
| #else |
| # define UNUSED __attribute__((unused)) |
| # define INLINE inline |
| #endif |
| |
| |
| #ifndef _WIN32 |
| enum { |
| UV__HANDLE_INTERNAL = 0x8000, |
| UV__HANDLE_ACTIVE = 0x4000, |
| UV__HANDLE_REF = 0x2000, |
| UV__HANDLE_CLOSING = 0 /* no-op on unix */ |
| }; |
| #else |
| # define UV__HANDLE_INTERNAL 0x80 |
| # define UV__HANDLE_ACTIVE 0x40 |
| # define UV__HANDLE_REF 0x20 |
| # define UV__HANDLE_CLOSING 0x01 |
| #endif |
| |
| extern const uv_err_t uv_ok_; |
| |
| uv_err_code uv_translate_sys_error(int sys_errno); |
| int uv__set_error(uv_loop_t* loop, uv_err_code code, int sys_error); |
| int uv__set_sys_error(uv_loop_t* loop, int sys_error); |
| int uv__set_artificial_error(uv_loop_t* loop, uv_err_code code); |
| uv_err_t uv__new_sys_error(int sys_error); |
| uv_err_t uv__new_artificial_error(uv_err_code code); |
| |
| int uv__tcp_bind(uv_tcp_t* handle, struct sockaddr_in addr); |
| int uv__tcp_bind6(uv_tcp_t* handle, struct sockaddr_in6 addr); |
| |
| int uv__udp_bind(uv_udp_t* handle, struct sockaddr_in addr, unsigned flags); |
| int uv__udp_bind6(uv_udp_t* handle, struct sockaddr_in6 addr, unsigned flags); |
| |
| int uv__tcp_connect(uv_connect_t* req, |
| uv_tcp_t* handle, |
| struct sockaddr_in address, |
| uv_connect_cb cb); |
| |
| int uv__tcp_connect6(uv_connect_t* req, |
| uv_tcp_t* handle, |
| struct sockaddr_in6 address, |
| uv_connect_cb cb); |
| |
| int uv__udp_send(uv_udp_send_t* req, |
| uv_udp_t* handle, |
| uv_buf_t bufs[], |
| int bufcnt, |
| struct sockaddr_in addr, |
| uv_udp_send_cb send_cb); |
| |
| int uv__udp_send6(uv_udp_send_t* req, |
| uv_udp_t* handle, |
| uv_buf_t bufs[], |
| int bufcnt, |
| struct sockaddr_in6 addr, |
| uv_udp_send_cb send_cb); |
| |
| int uv__udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloccb, |
| uv_udp_recv_cb recv_cb); |
| |
| int uv__udp_recv_stop(uv_udp_t* handle); |
| |
| void uv__fs_poll_close(uv_fs_poll_t* handle); |
| |
| |
| #define uv__has_active_reqs(loop) \ |
| (ngx_queue_empty(&(loop)->active_reqs) == 0) |
| |
| #define uv__req_register(loop, req) \ |
| do { \ |
| ngx_queue_insert_tail(&(loop)->active_reqs, &(req)->active_queue); \ |
| } \ |
| while (0) |
| |
| #define uv__req_unregister(loop, req) \ |
| do { \ |
| assert(uv__has_active_reqs(loop)); \ |
| ngx_queue_remove(&(req)->active_queue); \ |
| } \ |
| while (0) |
| |
| #define uv__has_active_handles(loop) \ |
| ((loop)->active_handles > 0) |
| |
| #define uv__active_handle_add(h) \ |
| do { \ |
| (h)->loop->active_handles++; \ |
| } \ |
| while (0) |
| |
| #define uv__active_handle_rm(h) \ |
| do { \ |
| (h)->loop->active_handles--; \ |
| } \ |
| while (0) |
| |
| #define uv__is_active(h) \ |
| (((h)->flags & UV__HANDLE_ACTIVE) != 0) |
| |
| #define uv__is_closing(h) \ |
| (((h)->flags & (UV_CLOSING | UV_CLOSED)) != 0) |
| |
| #define uv__handle_start(h) \ |
| do { \ |
| assert(((h)->flags & UV__HANDLE_CLOSING) == 0); \ |
| if (((h)->flags & UV__HANDLE_ACTIVE) != 0) break; \ |
| (h)->flags |= UV__HANDLE_ACTIVE; \ |
| if (((h)->flags & UV__HANDLE_REF) != 0) uv__active_handle_add(h); \ |
| } \ |
| while (0) |
| |
| #define uv__handle_stop(h) \ |
| do { \ |
| assert(((h)->flags & UV__HANDLE_CLOSING) == 0); \ |
| if (((h)->flags & UV__HANDLE_ACTIVE) == 0) break; \ |
| (h)->flags &= ~UV__HANDLE_ACTIVE; \ |
| if (((h)->flags & UV__HANDLE_REF) != 0) uv__active_handle_rm(h); \ |
| } \ |
| while (0) |
| |
| #define uv__handle_ref(h) \ |
| do { \ |
| if (((h)->flags & UV__HANDLE_REF) != 0) break; \ |
| (h)->flags |= UV__HANDLE_REF; \ |
| if (((h)->flags & UV__HANDLE_CLOSING) != 0) break; \ |
| if (((h)->flags & UV__HANDLE_ACTIVE) != 0) uv__active_handle_add(h); \ |
| } \ |
| while (0) |
| |
| #define uv__handle_unref(h) \ |
| do { \ |
| if (((h)->flags & UV__HANDLE_REF) == 0) break; \ |
| (h)->flags &= ~UV__HANDLE_REF; \ |
| if (((h)->flags & UV__HANDLE_CLOSING) != 0) break; \ |
| if (((h)->flags & UV__HANDLE_ACTIVE) != 0) uv__active_handle_rm(h); \ |
| } \ |
| while (0) |
| |
| #if defined(_WIN32) |
| # define uv__handle_platform_init(h) |
| #else |
| # define uv__handle_platform_init(h) ((h)->next_closing = NULL) |
| #endif |
| |
| #define uv__handle_init(loop_, h, type_) \ |
| do { \ |
| (h)->loop = (loop_); \ |
| (h)->type = (type_); \ |
| (h)->flags = UV__HANDLE_REF; /* Ref the loop when active. */ \ |
| ngx_queue_insert_tail(&(loop_)->handle_queue, &(h)->handle_queue); \ |
| uv__handle_platform_init(h); \ |
| } \ |
| while (0) |
| |
| #endif /* UV_COMMON_H_ */ |
