508 lines
19 KiB
C
508 lines
19 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef UV_UNIX_H
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#define UV_UNIX_H
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include <netdb.h> /* MAXHOSTNAMELEN on Solaris */
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#include <termios.h>
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#include <pwd.h>
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#if !defined(__MVS__)
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#include <semaphore.h>
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#include <sys/param.h> /* MAXHOSTNAMELEN on Linux and the BSDs */
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#endif
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#include <pthread.h>
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#include <signal.h>
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#include "uv/threadpool.h"
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#if defined(__linux__)
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# include "uv/linux.h"
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#elif defined (__MVS__)
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# include "uv/os390.h"
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#elif defined(__PASE__) /* __PASE__ and _AIX are both defined on IBM i */
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# include "uv/posix.h" /* IBM i needs uv/posix.h, not uv/aix.h */
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#elif defined(_AIX)
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# include "uv/aix.h"
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#elif defined(__sun)
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# include "uv/sunos.h"
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#elif defined(__APPLE__)
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# include "uv/darwin.h"
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#elif defined(__DragonFly__) || \
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defined(__FreeBSD__) || \
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defined(__FreeBSD_kernel__) || \
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defined(__OpenBSD__) || \
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defined(__NetBSD__)
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# include "uv/bsd.h"
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#elif defined(__CYGWIN__) || \
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defined(__MSYS__) || \
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defined(__GNU__)
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# include "uv/posix.h"
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#elif defined(__HAIKU__)
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# include "uv/posix.h"
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#elif defined(__QNX__)
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# include "uv/posix.h"
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#endif
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#ifndef NI_MAXHOST
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# define NI_MAXHOST 1025
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#endif
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#ifndef NI_MAXSERV
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# define NI_MAXSERV 32
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#endif
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#ifndef UV_IO_PRIVATE_PLATFORM_FIELDS
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# define UV_IO_PRIVATE_PLATFORM_FIELDS /* empty */
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#endif
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struct uv__io_s;
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struct uv_loop_s;
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typedef void (*uv__io_cb)(struct uv_loop_s* loop,
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struct uv__io_s* w,
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unsigned int events);
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typedef struct uv__io_s uv__io_t;
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struct uv__io_s {
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uv__io_cb cb;
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void* pending_queue[2];
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void* watcher_queue[2];
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unsigned int pevents; /* Pending event mask i.e. mask at next tick. */
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unsigned int events; /* Current event mask. */
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int fd;
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UV_IO_PRIVATE_PLATFORM_FIELDS
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};
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#ifndef UV_PLATFORM_SEM_T
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# define UV_PLATFORM_SEM_T sem_t
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#endif
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#ifndef UV_PLATFORM_LOOP_FIELDS
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# define UV_PLATFORM_LOOP_FIELDS /* empty */
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#endif
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#ifndef UV_PLATFORM_FS_EVENT_FIELDS
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# define UV_PLATFORM_FS_EVENT_FIELDS /* empty */
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#endif
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#ifndef UV_STREAM_PRIVATE_PLATFORM_FIELDS
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# define UV_STREAM_PRIVATE_PLATFORM_FIELDS /* empty */
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#endif
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/* Note: May be cast to struct iovec. See writev(2). */
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typedef struct uv_buf_t {
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char* base;
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size_t len;
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} uv_buf_t;
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typedef int uv_file;
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typedef int uv_os_sock_t;
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typedef int uv_os_fd_t;
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typedef pid_t uv_pid_t;
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#define UV_ONCE_INIT PTHREAD_ONCE_INIT
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typedef pthread_once_t uv_once_t;
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typedef pthread_t uv_thread_t;
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typedef pthread_mutex_t uv_mutex_t;
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typedef pthread_rwlock_t uv_rwlock_t;
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typedef UV_PLATFORM_SEM_T uv_sem_t;
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typedef pthread_cond_t uv_cond_t;
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typedef pthread_key_t uv_key_t;
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/* Note: guard clauses should match uv_barrier_init's in src/unix/thread.c. */
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#if defined(_AIX) || \
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defined(__OpenBSD__) || \
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!defined(PTHREAD_BARRIER_SERIAL_THREAD)
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/* TODO(bnoordhuis) Merge into uv_barrier_t in v2. */
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struct _uv_barrier {
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uv_mutex_t mutex;
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uv_cond_t cond;
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unsigned threshold;
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unsigned in;
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unsigned out;
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};
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typedef struct {
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struct _uv_barrier* b;
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# if defined(PTHREAD_BARRIER_SERIAL_THREAD)
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/* TODO(bnoordhuis) Remove padding in v2. */
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char pad[sizeof(pthread_barrier_t) - sizeof(struct _uv_barrier*)];
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# endif
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} uv_barrier_t;
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#else
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typedef pthread_barrier_t uv_barrier_t;
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#endif
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/* Platform-specific definitions for uv_spawn support. */
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typedef gid_t uv_gid_t;
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typedef uid_t uv_uid_t;
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typedef struct dirent uv__dirent_t;
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#define UV_DIR_PRIVATE_FIELDS \
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DIR* dir;
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#if defined(DT_UNKNOWN)
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# define HAVE_DIRENT_TYPES
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# if defined(DT_REG)
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# define UV__DT_FILE DT_REG
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# else
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# define UV__DT_FILE -1
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# endif
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# if defined(DT_DIR)
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# define UV__DT_DIR DT_DIR
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# else
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# define UV__DT_DIR -2
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# endif
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# if defined(DT_LNK)
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# define UV__DT_LINK DT_LNK
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# else
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# define UV__DT_LINK -3
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# endif
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# if defined(DT_FIFO)
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# define UV__DT_FIFO DT_FIFO
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# else
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# define UV__DT_FIFO -4
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# endif
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# if defined(DT_SOCK)
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# define UV__DT_SOCKET DT_SOCK
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# else
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# define UV__DT_SOCKET -5
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# endif
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# if defined(DT_CHR)
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# define UV__DT_CHAR DT_CHR
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# else
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# define UV__DT_CHAR -6
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# endif
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# if defined(DT_BLK)
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# define UV__DT_BLOCK DT_BLK
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# else
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# define UV__DT_BLOCK -7
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# endif
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#endif
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/* Platform-specific definitions for uv_dlopen support. */
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#define UV_DYNAMIC /* empty */
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typedef struct {
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void* handle;
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char* errmsg;
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} uv_lib_t;
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#define UV_LOOP_PRIVATE_FIELDS \
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unsigned long flags; \
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int backend_fd; \
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void* pending_queue[2]; \
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void* watcher_queue[2]; \
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uv__io_t** watchers; \
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unsigned int nwatchers; \
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unsigned int nfds; \
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void* wq[2]; \
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uv_mutex_t wq_mutex; \
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uv_async_t wq_async; \
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uv_rwlock_t cloexec_lock; \
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uv_handle_t* closing_handles; \
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void* process_handles[2]; \
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void* prepare_handles[2]; \
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void* check_handles[2]; \
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void* idle_handles[2]; \
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void* async_handles[2]; \
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void (*async_unused)(void); /* TODO(bnoordhuis) Remove in libuv v2. */ \
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uv__io_t async_io_watcher; \
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int async_wfd; \
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struct { \
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void* min; \
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unsigned int nelts; \
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} timer_heap; \
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uint64_t timer_counter; \
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uint64_t time; \
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int signal_pipefd[2]; \
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uv__io_t signal_io_watcher; \
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uv_signal_t child_watcher; \
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int emfile_fd; \
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UV_PLATFORM_LOOP_FIELDS \
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#define UV_REQ_TYPE_PRIVATE /* empty */
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#define UV_REQ_PRIVATE_FIELDS /* empty */
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#define UV_PRIVATE_REQ_TYPES /* empty */
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#define UV_WRITE_PRIVATE_FIELDS \
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void* queue[2]; \
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unsigned int write_index; \
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uv_buf_t* bufs; \
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unsigned int nbufs; \
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int error; \
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uv_buf_t bufsml[4]; \
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#define UV_CONNECT_PRIVATE_FIELDS \
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void* queue[2]; \
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#define UV_SHUTDOWN_PRIVATE_FIELDS /* empty */
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#define UV_UDP_SEND_PRIVATE_FIELDS \
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void* queue[2]; \
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struct sockaddr_storage addr; \
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unsigned int nbufs; \
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uv_buf_t* bufs; \
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ssize_t status; \
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uv_udp_send_cb send_cb; \
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uv_buf_t bufsml[4]; \
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#define UV_HANDLE_PRIVATE_FIELDS \
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uv_handle_t* next_closing; \
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unsigned int flags; \
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#define UV_STREAM_PRIVATE_FIELDS \
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uv_connect_t *connect_req; \
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uv_shutdown_t *shutdown_req; \
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uv__io_t io_watcher; \
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void* write_queue[2]; \
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void* write_completed_queue[2]; \
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uv_connection_cb connection_cb; \
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int delayed_error; \
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int accepted_fd; \
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void* queued_fds; \
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UV_STREAM_PRIVATE_PLATFORM_FIELDS \
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#define UV_TCP_PRIVATE_FIELDS /* empty */
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#define UV_UDP_PRIVATE_FIELDS \
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uv_alloc_cb alloc_cb; \
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uv_udp_recv_cb recv_cb; \
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uv__io_t io_watcher; \
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void* write_queue[2]; \
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void* write_completed_queue[2]; \
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#define UV_PIPE_PRIVATE_FIELDS \
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const char* pipe_fname; /* strdup'ed */
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#define UV_POLL_PRIVATE_FIELDS \
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uv__io_t io_watcher;
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#define UV_PREPARE_PRIVATE_FIELDS \
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uv_prepare_cb prepare_cb; \
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void* queue[2]; \
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#define UV_CHECK_PRIVATE_FIELDS \
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uv_check_cb check_cb; \
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void* queue[2]; \
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#define UV_IDLE_PRIVATE_FIELDS \
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uv_idle_cb idle_cb; \
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void* queue[2]; \
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#define UV_ASYNC_PRIVATE_FIELDS \
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uv_async_cb async_cb; \
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void* queue[2]; \
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int pending; \
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#define UV_TIMER_PRIVATE_FIELDS \
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uv_timer_cb timer_cb; \
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void* heap_node[3]; \
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uint64_t timeout; \
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uint64_t repeat; \
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uint64_t start_id;
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#define UV_GETADDRINFO_PRIVATE_FIELDS \
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struct uv__work work_req; \
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uv_getaddrinfo_cb cb; \
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struct addrinfo* hints; \
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char* hostname; \
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char* service; \
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struct addrinfo* addrinfo; \
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int retcode;
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#define UV_GETNAMEINFO_PRIVATE_FIELDS \
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struct uv__work work_req; \
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uv_getnameinfo_cb getnameinfo_cb; \
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struct sockaddr_storage storage; \
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int flags; \
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char host[NI_MAXHOST]; \
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char service[NI_MAXSERV]; \
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int retcode;
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#define UV_PROCESS_PRIVATE_FIELDS \
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void* queue[2]; \
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int status; \
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#define UV_FS_PRIVATE_FIELDS \
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const char *new_path; \
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uv_file file; \
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int flags; \
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mode_t mode; \
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unsigned int nbufs; \
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uv_buf_t* bufs; \
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off_t off; \
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uv_uid_t uid; \
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uv_gid_t gid; \
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double atime; \
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double mtime; \
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struct uv__work work_req; \
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uv_buf_t bufsml[4]; \
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#define UV_WORK_PRIVATE_FIELDS \
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struct uv__work work_req;
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#define UV_TTY_PRIVATE_FIELDS \
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struct termios orig_termios; \
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int mode;
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#define UV_SIGNAL_PRIVATE_FIELDS \
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/* RB_ENTRY(uv_signal_s) tree_entry; */ \
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struct { \
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struct uv_signal_s* rbe_left; \
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struct uv_signal_s* rbe_right; \
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struct uv_signal_s* rbe_parent; \
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int rbe_color; \
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} tree_entry; \
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/* Use two counters here so we don have to fiddle with atomics. */ \
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unsigned int caught_signals; \
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unsigned int dispatched_signals;
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#define UV_FS_EVENT_PRIVATE_FIELDS \
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uv_fs_event_cb cb; \
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UV_PLATFORM_FS_EVENT_FIELDS \
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/* fs open() flags supported on this platform: */
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#if defined(O_APPEND)
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# define UV_FS_O_APPEND O_APPEND
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#else
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# define UV_FS_O_APPEND 0
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#endif
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#if defined(O_CREAT)
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# define UV_FS_O_CREAT O_CREAT
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#else
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# define UV_FS_O_CREAT 0
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#endif
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#if defined(__linux__) && defined(__arm__)
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# define UV_FS_O_DIRECT 0x10000
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#elif defined(__linux__) && defined(__m68k__)
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# define UV_FS_O_DIRECT 0x10000
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#elif defined(__linux__) && defined(__mips__)
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# define UV_FS_O_DIRECT 0x08000
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#elif defined(__linux__) && defined(__powerpc__)
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# define UV_FS_O_DIRECT 0x20000
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#elif defined(__linux__) && defined(__s390x__)
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# define UV_FS_O_DIRECT 0x04000
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#elif defined(__linux__) && defined(__x86_64__)
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# define UV_FS_O_DIRECT 0x04000
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#elif defined(O_DIRECT)
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# define UV_FS_O_DIRECT O_DIRECT
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#else
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# define UV_FS_O_DIRECT 0
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#endif
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#if defined(O_DIRECTORY)
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# define UV_FS_O_DIRECTORY O_DIRECTORY
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#else
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# define UV_FS_O_DIRECTORY 0
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#endif
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#if defined(O_DSYNC)
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# define UV_FS_O_DSYNC O_DSYNC
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#else
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# define UV_FS_O_DSYNC 0
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#endif
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#if defined(O_EXCL)
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# define UV_FS_O_EXCL O_EXCL
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#else
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# define UV_FS_O_EXCL 0
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#endif
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#if defined(O_EXLOCK)
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# define UV_FS_O_EXLOCK O_EXLOCK
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#else
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# define UV_FS_O_EXLOCK 0
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#endif
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#if defined(O_NOATIME)
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# define UV_FS_O_NOATIME O_NOATIME
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#else
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# define UV_FS_O_NOATIME 0
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#endif
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#if defined(O_NOCTTY)
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# define UV_FS_O_NOCTTY O_NOCTTY
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#else
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# define UV_FS_O_NOCTTY 0
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#endif
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#if defined(O_NOFOLLOW)
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# define UV_FS_O_NOFOLLOW O_NOFOLLOW
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#else
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# define UV_FS_O_NOFOLLOW 0
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#endif
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#if defined(O_NONBLOCK)
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# define UV_FS_O_NONBLOCK O_NONBLOCK
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#else
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# define UV_FS_O_NONBLOCK 0
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#endif
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#if defined(O_RDONLY)
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# define UV_FS_O_RDONLY O_RDONLY
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#else
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# define UV_FS_O_RDONLY 0
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#endif
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#if defined(O_RDWR)
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# define UV_FS_O_RDWR O_RDWR
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#else
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# define UV_FS_O_RDWR 0
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#endif
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#if defined(O_SYMLINK)
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# define UV_FS_O_SYMLINK O_SYMLINK
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#else
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# define UV_FS_O_SYMLINK 0
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#endif
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#if defined(O_SYNC)
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# define UV_FS_O_SYNC O_SYNC
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#else
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# define UV_FS_O_SYNC 0
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#endif
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#if defined(O_TRUNC)
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# define UV_FS_O_TRUNC O_TRUNC
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#else
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# define UV_FS_O_TRUNC 0
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#endif
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#if defined(O_WRONLY)
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# define UV_FS_O_WRONLY O_WRONLY
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#else
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# define UV_FS_O_WRONLY 0
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#endif
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/* fs open() flags supported on other platforms: */
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#define UV_FS_O_FILEMAP 0
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#define UV_FS_O_RANDOM 0
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#define UV_FS_O_SHORT_LIVED 0
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#define UV_FS_O_SEQUENTIAL 0
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#define UV_FS_O_TEMPORARY 0
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#endif /* UV_UNIX_H */
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