관리-도구

편집 파일: internal.h

/* 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. */ #ifndef UV_UNIX_INTERNAL_H_ #define UV_UNIX_INTERNAL_H_ #include "uv-common.h" #include <assert.h> #include <stdlib.h> /* abort */ #include <string.h> /* strrchr */ #include <fcntl.h> /* O_CLOEXEC, may be */ #if defined(__STRICT_ANSI__) # define inline __inline #endif #if defined(__linux__) # include "linux-syscalls.h" #endif /* __linux__ */ #if defined(__sun) # include <sys/port.h> # include <port.h> #endif /* __sun */ #if defined(_AIX) #define reqevents events #define rtnevents revents #include <sys/poll.h> #endif /* _AIX */ #if defined(__APPLE__) && !TARGET_OS_IPHONE # include <CoreServices/CoreServices.h> #endif #define ACCESS_ONCE(type, var) \ (*(volatile type*) &(var)) #define ROUND_UP(a, b) \ ((a) % (b) ? ((a) + (b)) - ((a) % (b)) : (a)) #define UNREACHABLE() \ do { \ assert(0 && "unreachable code"); \ abort(); \ } \ while (0) #define SAVE_ERRNO(block) \ do { \ int _saved_errno = errno; \ do { block; } while (0); \ errno = _saved_errno; \ } \ while (0) /* The __clang__ and __INTEL_COMPILER checks are superfluous because they * define __GNUC__. They are here to convey to you, dear reader, that these * macros are enabled when compiling with clang or icc. */ #if defined(__clang__) || \ defined(__GNUC__) || \ defined(__INTEL_COMPILER) || \ defined(__SUNPRO_C) # define UV_DESTRUCTOR(declaration) __attribute__((destructor)) declaration # define UV_UNUSED(declaration) __attribute__((unused)) declaration #else # define UV_DESTRUCTOR(declaration) declaration # define UV_UNUSED(declaration) declaration #endif #if defined(__linux__) # define UV__POLLIN UV__EPOLLIN # define UV__POLLOUT UV__EPOLLOUT # define UV__POLLERR UV__EPOLLERR # define UV__POLLHUP UV__EPOLLHUP #endif #if defined(__sun) || defined(_AIX) # define UV__POLLIN POLLIN # define UV__POLLOUT POLLOUT # define UV__POLLERR POLLERR # define UV__POLLHUP POLLHUP #endif #ifndef UV__POLLIN # define UV__POLLIN 1 #endif #ifndef UV__POLLOUT # define UV__POLLOUT 2 #endif #ifndef UV__POLLERR # define UV__POLLERR 4 #endif #ifndef UV__POLLHUP # define UV__POLLHUP 8 #endif #if !defined(O_CLOEXEC) && defined(__FreeBSD__) /* * It may be that we are just missing `__POSIX_VISIBLE >= 200809`. * Try using fixed value const and give up, if it doesn't work */ # define O_CLOEXEC 0x00100000 #endif typedef struct uv__stream_queued_fds_s uv__stream_queued_fds_t; /* handle flags */ enum { UV_CLOSING = 0x01, /* uv_close() called but not finished. */ UV_CLOSED = 0x02, /* close(2) finished. */ UV_STREAM_READING = 0x04, /* uv_read_start() called. */ UV_STREAM_SHUTTING = 0x08, /* uv_shutdown() called but not complete. */ UV_STREAM_SHUT = 0x10, /* Write side closed. */ UV_STREAM_READABLE = 0x20, /* The stream is readable */ UV_STREAM_WRITABLE = 0x40, /* The stream is writable */ UV_STREAM_BLOCKING = 0x80, /* Synchronous writes. */ UV_STREAM_READ_PARTIAL = 0x100, /* read(2) read less than requested. */ UV_STREAM_READ_EOF = 0x200, /* read(2) read EOF. */ UV_TCP_NODELAY = 0x400, /* Disable Nagle. */ UV_TCP_KEEPALIVE = 0x800, /* Turn on keep-alive. */ UV_TCP_SINGLE_ACCEPT = 0x1000, /* Only accept() when idle. */ UV_HANDLE_IPV6 = 0x10000, /* Handle is bound to a IPv6 socket. */ UV_UDP_PROCESSING = 0x20000 /* Handle is running the send callback queue. */ }; /* loop flags */ enum { UV_LOOP_BLOCK_SIGPROF = 1 }; typedef enum { UV_CLOCK_PRECISE = 0, /* Use the highest resolution clock available. */ UV_CLOCK_FAST = 1 /* Use the fastest clock with <= 1ms granularity. */ } uv_clocktype_t; struct uv__stream_queued_fds_s { unsigned int size; unsigned int offset; int fds[1]; }; /* core */ int uv__nonblock(int fd, int set); int uv__close(int fd); int uv__cloexec(int fd, int set); int uv__socket(int domain, int type, int protocol); int uv__dup(int fd); ssize_t uv__recvmsg(int fd, struct msghdr *msg, int flags); void uv__make_close_pending(uv_handle_t* handle); int uv__getiovmax(void); void uv__io_init(uv__io_t* w, uv__io_cb cb, int fd); void uv__io_start(uv_loop_t* loop, uv__io_t* w, unsigned int events); void uv__io_stop(uv_loop_t* loop, uv__io_t* w, unsigned int events); void uv__io_close(uv_loop_t* loop, uv__io_t* w); void uv__io_feed(uv_loop_t* loop, uv__io_t* w); int uv__io_active(const uv__io_t* w, unsigned int events); void uv__io_poll(uv_loop_t* loop, int timeout); /* in milliseconds or -1 */ /* async */ void uv__async_send(struct uv__async* wa); void uv__async_init(struct uv__async* wa); int uv__async_start(uv_loop_t* loop, struct uv__async* wa, uv__async_cb cb); void uv__async_stop(uv_loop_t* loop, struct uv__async* wa); /* loop */ void uv__run_idle(uv_loop_t* loop); void uv__run_check(uv_loop_t* loop); void uv__run_prepare(uv_loop_t* loop); /* stream */ void uv__stream_init(uv_loop_t* loop, uv_stream_t* stream, uv_handle_type type); int uv__stream_open(uv_stream_t*, int fd, int flags); void uv__stream_destroy(uv_stream_t* stream); #if defined(__APPLE__) int uv__stream_try_select(uv_stream_t* stream, int* fd); #endif /* defined(__APPLE__) */ void uv__server_io(uv_loop_t* loop, uv__io_t* w, unsigned int events); int uv__accept(int sockfd); int uv__dup2_cloexec(int oldfd, int newfd); int uv__open_cloexec(const char* path, int flags); /* tcp */ int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb); int uv__tcp_nodelay(int fd, int on); int uv__tcp_keepalive(int fd, int on, unsigned int delay); /* pipe */ int uv_pipe_listen(uv_pipe_t* handle, int backlog, uv_connection_cb cb); /* timer */ void uv__run_timers(uv_loop_t* loop); int uv__next_timeout(const uv_loop_t* loop); /* signal */ void uv__signal_close(uv_signal_t* handle); void uv__signal_global_once_init(void); void uv__signal_loop_cleanup(uv_loop_t* loop); /* platform specific */ uint64_t uv__hrtime(uv_clocktype_t type); int uv__kqueue_init(uv_loop_t* loop); int uv__platform_loop_init(uv_loop_t* loop); void uv__platform_loop_delete(uv_loop_t* loop); void uv__platform_invalidate_fd(uv_loop_t* loop, int fd); /* various */ void uv__async_close(uv_async_t* handle); void uv__check_close(uv_check_t* handle); void uv__fs_event_close(uv_fs_event_t* handle); void uv__idle_close(uv_idle_t* handle); void uv__pipe_close(uv_pipe_t* handle); void uv__poll_close(uv_poll_t* handle); void uv__prepare_close(uv_prepare_t* handle); void uv__process_close(uv_process_t* handle); void uv__stream_close(uv_stream_t* handle); void uv__tcp_close(uv_tcp_t* handle); void uv__timer_close(uv_timer_t* handle); void uv__udp_close(uv_udp_t* handle); void uv__udp_finish_close(uv_udp_t* handle); uv_handle_type uv__handle_type(int fd); #if defined(__APPLE__) int uv___stream_fd(const uv_stream_t* handle); #define uv__stream_fd(handle) (uv___stream_fd((const uv_stream_t*) (handle))) #else #define uv__stream_fd(handle) ((handle)->io_watcher.fd) #endif /* defined(__APPLE__) */ #ifdef UV__O_NONBLOCK # define UV__F_NONBLOCK UV__O_NONBLOCK #else # define UV__F_NONBLOCK 1 #endif int uv__make_socketpair(int fds[2], int flags); int uv__make_pipe(int fds[2], int flags); #if defined(__APPLE__) int uv__fsevents_init(uv_fs_event_t* handle); int uv__fsevents_close(uv_fs_event_t* handle); void uv__fsevents_loop_delete(uv_loop_t* loop); /* OSX < 10.7 has no file events, polyfill them */ #ifndef MAC_OS_X_VERSION_10_7 static const int kFSEventStreamCreateFlagFileEvents = 0x00000010; static const int kFSEventStreamEventFlagItemCreated = 0x00000100; static const int kFSEventStreamEventFlagItemRemoved = 0x00000200; static const int kFSEventStreamEventFlagItemInodeMetaMod = 0x00000400; static const int kFSEventStreamEventFlagItemRenamed = 0x00000800; static const int kFSEventStreamEventFlagItemModified = 0x00001000; static const int kFSEventStreamEventFlagItemFinderInfoMod = 0x00002000; static const int kFSEventStreamEventFlagItemChangeOwner = 0x00004000; static const int kFSEventStreamEventFlagItemXattrMod = 0x00008000; static const int kFSEventStreamEventFlagItemIsFile = 0x00010000; static const int kFSEventStreamEventFlagItemIsDir = 0x00020000; static const int kFSEventStreamEventFlagItemIsSymlink = 0x00040000; #endif /* __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070 */ #endif /* defined(__APPLE__) */ UV_UNUSED(static void uv__req_init(uv_loop_t* loop, uv_req_t* req, uv_req_type type)) { req->type = type; uv__req_register(loop, req); } #define uv__req_init(loop, req, type) \ uv__req_init((loop), (uv_req_t*)(req), (type)) UV_UNUSED(static void uv__update_time(uv_loop_t* loop)) { /* Use a fast time source if available. We only need millisecond precision. */ loop->time = uv__hrtime(UV_CLOCK_FAST) / 1000000; } UV_UNUSED(static char* uv__basename_r(const char* path)) { char* s; s = strrchr(path, '/'); if (s == NULL) return (char*) path; return s + 1; } #endif /* UV_UNIX_INTERNAL_H_ */