/
unix.h
507 lines (446 loc) · 19.1 KB
/
unix.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
/* 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"
#elif defined(__QNX__)
# 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(__linux__) && defined(__arm__)
# define UV_FS_O_DIRECT 0x10000
#elif defined(__linux__) && defined(__m68k__)
# define UV_FS_O_DIRECT 0x10000
#elif defined(__linux__) && defined(__mips__)
# define UV_FS_O_DIRECT 0x08000
#elif defined(__linux__) && defined(__powerpc__)
# define UV_FS_O_DIRECT 0x20000
#elif defined(__linux__) && defined(__s390x__)
# define UV_FS_O_DIRECT 0x04000
#elif defined(__linux__) && defined(__x86_64__)
# define UV_FS_O_DIRECT 0x04000
#elif 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 */