/* 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 #include #if defined(_MSC_VER) && _MSC_VER < 1600 # include "uv-private/stdint-msvc2008.h" #else # include #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_ */