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unix.h
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/* 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_H #define UV_UNIX_H #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <dirent.h> #include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h> #include <arpa/inet.h> #include <netdb.h> /* MAXHOSTNAMELEN on Solaris */ #include <termios.h> #include <pwd.h> #if !defined(__MVS__) #include <semaphore.h> #include <sys/param.h> /* MAXHOSTNAMELEN on Linux and the BSDs */ #endif #include <pthread.h> #include <signal.h> #include "uv/threadpool.h" #if defined(__linux__) # include "uv/linux.h" #elif defined (__MVS__) # include "uv/os390.h" #elif defined(__PASE__) /* __PASE__ and _AIX are both defined on IBM i */ # include "uv/posix.h" /* IBM i needs uv/posix.h, not uv/aix.h */ #elif defined(_AIX) # include "uv/aix.h" #elif defined(__sun) # include "uv/sunos.h" #elif defined(__APPLE__) # include "uv/darwin.h" #elif defined(__DragonFly__) || \ defined(__FreeBSD__) || \ defined(__FreeBSD_kernel__) || \ defined(__OpenBSD__) || \ defined(__NetBSD__) # include "uv/bsd.h" #elif defined(__CYGWIN__) || \ defined(__MSYS__) || \ defined(__GNU__) # include "uv/posix.h" #elif defined(__HAIKU__) # include "uv/posix.h" #endif #ifndef NI_MAXHOST # define NI_MAXHOST 1025 #endif #ifndef NI_MAXSERV # define NI_MAXSERV 32 #endif #ifndef UV_IO_PRIVATE_PLATFORM_FIELDS # define UV_IO_PRIVATE_PLATFORM_FIELDS /* empty */ #endif struct uv__io_s; struct uv_loop_s; typedef void (*uv__io_cb)(struct uv_loop_s* loop, struct uv__io_s* w, unsigned int events); typedef struct uv__io_s uv__io_t; struct uv__io_s { uv__io_cb cb; void* pending_queue[2]; void* watcher_queue[2]; unsigned int pevents; /* Pending event mask i.e. mask at next tick. */ unsigned int events; /* Current event mask. */ int fd; UV_IO_PRIVATE_PLATFORM_FIELDS }; #ifndef UV_PLATFORM_SEM_T # define UV_PLATFORM_SEM_T sem_t #endif #ifndef UV_PLATFORM_LOOP_FIELDS # define UV_PLATFORM_LOOP_FIELDS /* empty */ #endif #ifndef UV_PLATFORM_FS_EVENT_FIELDS # define UV_PLATFORM_FS_EVENT_FIELDS /* empty */ #endif #ifndef UV_STREAM_PRIVATE_PLATFORM_FIELDS # define UV_STREAM_PRIVATE_PLATFORM_FIELDS /* empty */ #endif /* Note: May be cast to struct iovec. See writev(2). */ typedef struct uv_buf_t { char* base; size_t len; } uv_buf_t; typedef int uv_file; typedef int uv_os_sock_t; typedef int uv_os_fd_t; typedef pid_t uv_pid_t; #define UV_ONCE_INIT PTHREAD_ONCE_INIT typedef pthread_once_t uv_once_t; typedef pthread_t uv_thread_t; typedef pthread_mutex_t uv_mutex_t; typedef pthread_rwlock_t uv_rwlock_t; typedef UV_PLATFORM_SEM_T uv_sem_t; typedef pthread_cond_t uv_cond_t; typedef pthread_key_t uv_key_t; /* Note: guard clauses should match uv_barrier_init's in src/unix/thread.c. */ #if defined(_AIX) || \ defined(__OpenBSD__) || \ !defined(PTHREAD_BARRIER_SERIAL_THREAD) /* TODO(bnoordhuis) Merge into uv_barrier_t in v2. */ struct _uv_barrier { uv_mutex_t mutex; uv_cond_t cond; unsigned threshold; unsigned in; unsigned out; }; typedef struct { struct _uv_barrier* b; # if defined(PTHREAD_BARRIER_SERIAL_THREAD) /* TODO(bnoordhuis) Remove padding in v2. */ char pad[sizeof(pthread_barrier_t) - sizeof(struct _uv_barrier*)]; # endif } uv_barrier_t; #else typedef pthread_barrier_t uv_barrier_t; #endif /* Platform-specific definitions for uv_spawn support. */ typedef gid_t uv_gid_t; typedef uid_t uv_uid_t; typedef struct dirent uv__dirent_t; #define UV_DIR_PRIVATE_FIELDS \ DIR* dir; #if defined(DT_UNKNOWN) # define HAVE_DIRENT_TYPES # if defined(DT_REG) # define UV__DT_FILE DT_REG # else # define UV__DT_FILE -1 # endif # if defined(DT_DIR) # define UV__DT_DIR DT_DIR # else # define UV__DT_DIR -2 # endif # if defined(DT_LNK) # define UV__DT_LINK DT_LNK # else # define UV__DT_LINK -3 # endif # if defined(DT_FIFO) # define UV__DT_FIFO DT_FIFO # else # define UV__DT_FIFO -4 # endif # if defined(DT_SOCK) # define UV__DT_SOCKET DT_SOCK # else # define UV__DT_SOCKET -5 # endif # if defined(DT_CHR) # define UV__DT_CHAR DT_CHR # else # define UV__DT_CHAR -6 # endif # if defined(DT_BLK) # define UV__DT_BLOCK DT_BLK # else # define UV__DT_BLOCK -7 # endif #endif /* Platform-specific definitions for uv_dlopen support. */ #define UV_DYNAMIC /* empty */ typedef struct { void* handle; char* errmsg; } uv_lib_t; #define UV_LOOP_PRIVATE_FIELDS \ unsigned long flags; \ int backend_fd; \ void* pending_queue[2]; \ void* watcher_queue[2]; \ uv__io_t** watchers; \ unsigned int nwatchers; \ unsigned int nfds; \ void* wq[2]; \ uv_mutex_t wq_mutex; \ uv_async_t wq_async; \ uv_rwlock_t cloexec_lock; \ uv_handle_t* closing_handles; \ void* process_handles[2]; \ void* prepare_handles[2]; \ void* check_handles[2]; \ void* idle_handles[2]; \ void* async_handles[2]; \ void (*async_unused)(void); /* TODO(bnoordhuis) Remove in libuv v2. */ \ uv__io_t async_io_watcher; \ int async_wfd; \ struct { \ void* min; \ unsigned int nelts; \ } timer_heap; \ uint64_t timer_counter; \ uint64_t time; \ int signal_pipefd[2]; \ uv__io_t signal_io_watcher; \ uv_signal_t child_watcher; \ int emfile_fd; \ UV_PLATFORM_LOOP_FIELDS \ #define UV_REQ_TYPE_PRIVATE /* empty */ #define UV_REQ_PRIVATE_FIELDS /* empty */ #define UV_PRIVATE_REQ_TYPES /* empty */ #define UV_WRITE_PRIVATE_FIELDS \ void* queue[2]; \ unsigned int write_index; \ uv_buf_t* bufs; \ unsigned int nbufs; \ int error; \ uv_buf_t bufsml[4]; \ #define UV_CONNECT_PRIVATE_FIELDS \ void* queue[2]; \ #define UV_SHUTDOWN_PRIVATE_FIELDS /* empty */ #define UV_UDP_SEND_PRIVATE_FIELDS \ void* queue[2]; \ struct sockaddr_storage addr; \ unsigned int nbufs; \ uv_buf_t* bufs; \ ssize_t status; \ uv_udp_send_cb send_cb; \ uv_buf_t bufsml[4]; \ #define UV_HANDLE_PRIVATE_FIELDS \ uv_handle_t* next_closing; \ unsigned int flags; \ #define UV_STREAM_PRIVATE_FIELDS \ uv_connect_t *connect_req; \ uv_shutdown_t *shutdown_req; \ uv__io_t io_watcher; \ void* write_queue[2]; \ void* write_completed_queue[2]; \ uv_connection_cb connection_cb; \ int delayed_error; \ int accepted_fd; \ void* queued_fds; \ UV_STREAM_PRIVATE_PLATFORM_FIELDS \ #define UV_TCP_PRIVATE_FIELDS /* empty */ #define UV_UDP_PRIVATE_FIELDS \ uv_alloc_cb alloc_cb; \ uv_udp_recv_cb recv_cb; \ uv__io_t io_watcher; \ void* write_queue[2]; \ void* write_completed_queue[2]; \ #define UV_PIPE_PRIVATE_FIELDS \ const char* pipe_fname; /* strdup'ed */ #define UV_POLL_PRIVATE_FIELDS \ uv__io_t io_watcher; #define UV_PREPARE_PRIVATE_FIELDS \ uv_prepare_cb prepare_cb; \ void* queue[2]; \ #define UV_CHECK_PRIVATE_FIELDS \ uv_check_cb check_cb; \ void* queue[2]; \ #define UV_IDLE_PRIVATE_FIELDS \ uv_idle_cb idle_cb; \ void* queue[2]; \ #define UV_ASYNC_PRIVATE_FIELDS \ uv_async_cb async_cb; \ void* queue[2]; \ int pending; \ #define UV_TIMER_PRIVATE_FIELDS \ uv_timer_cb timer_cb; \ void* heap_node[3]; \ uint64_t timeout; \ uint64_t repeat; \ uint64_t start_id; #define UV_GETADDRINFO_PRIVATE_FIELDS \ struct uv__work work_req; \ uv_getaddrinfo_cb cb; \ struct addrinfo* hints; \ char* hostname; \ char* service; \ struct addrinfo* addrinfo; \ int retcode; #define UV_GETNAMEINFO_PRIVATE_FIELDS \ struct uv__work work_req; \ uv_getnameinfo_cb getnameinfo_cb; \ struct sockaddr_storage storage; \ int flags; \ char host[NI_MAXHOST]; \ char service[NI_MAXSERV]; \ int retcode; #define UV_PROCESS_PRIVATE_FIELDS \ void* queue[2]; \ int status; \ #define UV_FS_PRIVATE_FIELDS \ const char *new_path; \ uv_file file; \ int flags; \ mode_t mode; \ unsigned int nbufs; \ uv_buf_t* bufs; \ off_t off; \ uv_uid_t uid; \ uv_gid_t gid; \ double atime; \ double mtime; \ struct uv__work work_req; \ uv_buf_t bufsml[4]; \ #define UV_WORK_PRIVATE_FIELDS \ struct uv__work work_req; #define UV_TTY_PRIVATE_FIELDS \ struct termios orig_termios; \ int mode; #define UV_SIGNAL_PRIVATE_FIELDS \ /* RB_ENTRY(uv_signal_s) tree_entry; */ \ struct { \ struct uv_signal_s* rbe_left; \ struct uv_signal_s* rbe_right; \ struct uv_signal_s* rbe_parent; \ int rbe_color; \ } tree_entry; \ /* Use two counters here so we don have to fiddle with atomics. */ \ unsigned int caught_signals; \ unsigned int dispatched_signals; #define UV_FS_EVENT_PRIVATE_FIELDS \ uv_fs_event_cb cb; \ UV_PLATFORM_FS_EVENT_FIELDS \ /* fs open() flags supported on this platform: */ #if defined(O_APPEND) # define UV_FS_O_APPEND O_APPEND #else # define UV_FS_O_APPEND 0 #endif #if defined(O_CREAT) # define UV_FS_O_CREAT O_CREAT #else # define UV_FS_O_CREAT 0 #endif #if defined(O_DIRECT) # define UV_FS_O_DIRECT O_DIRECT #else # define UV_FS_O_DIRECT 0 #endif #if defined(O_DIRECTORY) # define UV_FS_O_DIRECTORY O_DIRECTORY #else # define UV_FS_O_DIRECTORY 0 #endif #if defined(O_DSYNC) # define UV_FS_O_DSYNC O_DSYNC #else # define UV_FS_O_DSYNC 0 #endif #if defined(O_EXCL) # define UV_FS_O_EXCL O_EXCL #else # define UV_FS_O_EXCL 0 #endif #if defined(O_EXLOCK) # define UV_FS_O_EXLOCK O_EXLOCK #else # define UV_FS_O_EXLOCK 0 #endif #if defined(O_NOATIME) # define UV_FS_O_NOATIME O_NOATIME #else # define UV_FS_O_NOATIME 0 #endif #if defined(O_NOCTTY) # define UV_FS_O_NOCTTY O_NOCTTY #else # define UV_FS_O_NOCTTY 0 #endif #if defined(O_NOFOLLOW) # define UV_FS_O_NOFOLLOW O_NOFOLLOW #else # define UV_FS_O_NOFOLLOW 0 #endif #if defined(O_NONBLOCK) # define UV_FS_O_NONBLOCK O_NONBLOCK #else # define UV_FS_O_NONBLOCK 0 #endif #if defined(O_RDONLY) # define UV_FS_O_RDONLY O_RDONLY #else # define UV_FS_O_RDONLY 0 #endif #if defined(O_RDWR) # define UV_FS_O_RDWR O_RDWR #else # define UV_FS_O_RDWR 0 #endif #if defined(O_SYMLINK) # define UV_FS_O_SYMLINK O_SYMLINK #else # define UV_FS_O_SYMLINK 0 #endif #if defined(O_SYNC) # define UV_FS_O_SYNC O_SYNC #else # define UV_FS_O_SYNC 0 #endif #if defined(O_TRUNC) # define UV_FS_O_TRUNC O_TRUNC #else # define UV_FS_O_TRUNC 0 #endif #if defined(O_WRONLY) # define UV_FS_O_WRONLY O_WRONLY #else # define UV_FS_O_WRONLY 0 #endif /* fs open() flags supported on other platforms: */ #define UV_FS_O_FILEMAP 0 #define UV_FS_O_RANDOM 0 #define UV_FS_O_SHORT_LIVED 0 #define UV_FS_O_SEQUENTIAL 0 #define UV_FS_O_TEMPORARY 0 #endif /* UV_UNIX_H */