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The C and C++ Include Header Files
/usr/include/node/uv.h
$ cat -n /usr/include/node/uv.h 1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a copy 4 * of this software and associated documentation files (the "Software"), to 5 * deal in the Software without restriction, including without limitation the 6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 7 * sell copies of the Software, and to permit persons to whom the Software is 8 * furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 19 * IN THE SOFTWARE. 20 */ 21 22 /* See https://github.com/libuv/libuv#documentation for documentation. */ 23 24 #ifndef UV_H 25 #define UV_H 26 #ifdef __cplusplus 27 extern "C" { 28 #endif 29 30 #if defined(BUILDING_UV_SHARED) && defined(USING_UV_SHARED) 31 #error "Define either BUILDING_UV_SHARED or USING_UV_SHARED, not both." 32 #endif 33 34 #ifndef UV_EXTERN 35 #ifdef _WIN32 36 /* Windows - set up dll import/export decorators. */ 37 # if defined(BUILDING_UV_SHARED) 38 /* Building shared library. */ 39 # define UV_EXTERN __declspec(dllexport) 40 # elif defined(USING_UV_SHARED) 41 /* Using shared library. */ 42 # define UV_EXTERN __declspec(dllimport) 43 # else 44 /* Building static library. */ 45 # define UV_EXTERN /* nothing */ 46 # endif 47 #elif __GNUC__ >= 4 48 # define UV_EXTERN __attribute__((visibility("default"))) 49 #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) /* Sun Studio >= 8 */ 50 # define UV_EXTERN __global 51 #else 52 # define UV_EXTERN /* nothing */ 53 #endif 54 #endif /* UV_EXTERN */ 55 56 #include "uv/errno.h" 57 #include "uv/version.h" 58 #include <stddef.h> 59 #include <stdio.h> 60 #include <stdint.h> 61 #include <math.h> 62 63 /* Internal type, do not use. */ 64 struct uv__queue { 65 struct uv__queue* next; 66 struct uv__queue* prev; 67 }; 68 69 #if defined(_WIN32) 70 # include "uv/win.h" 71 #else 72 # include "uv/unix.h" 73 #endif 74 75 /* Expand this list if necessary. */ 76 #define UV_ERRNO_MAP(XX) \ 77 XX(E2BIG, "argument list too long") \ 78 XX(EACCES, "permission denied") \ 79 XX(EADDRINUSE, "address already in use") \ 80 XX(EADDRNOTAVAIL, "address not available") \ 81 XX(EAFNOSUPPORT, "address family not supported") \ 82 XX(EAGAIN, "resource temporarily unavailable") \ 83 XX(EAI_ADDRFAMILY, "address family not supported") \ 84 XX(EAI_AGAIN, "temporary failure") \ 85 XX(EAI_BADFLAGS, "bad ai_flags value") \ 86 XX(EAI_BADHINTS, "invalid value for hints") \ 87 XX(EAI_CANCELED, "request canceled") \ 88 XX(EAI_FAIL, "permanent failure") \ 89 XX(EAI_FAMILY, "ai_family not supported") \ 90 XX(EAI_MEMORY, "out of memory") \ 91 XX(EAI_NODATA, "no address") \ 92 XX(EAI_NONAME, "unknown node or service") \ 93 XX(EAI_OVERFLOW, "argument buffer overflow") \ 94 XX(EAI_PROTOCOL, "resolved protocol is unknown") \ 95 XX(EAI_SERVICE, "service not available for socket type") \ 96 XX(EAI_SOCKTYPE, "socket type not supported") \ 97 XX(EALREADY, "connection already in progress") \ 98 XX(EBADF, "bad file descriptor") \ 99 XX(EBUSY, "resource busy or locked") \ 100 XX(ECANCELED, "operation canceled") \ 101 XX(ECHARSET, "invalid Unicode character") \ 102 XX(ECONNABORTED, "software caused connection abort") \ 103 XX(ECONNREFUSED, "connection refused") \ 104 XX(ECONNRESET, "connection reset by peer") \ 105 XX(EDESTADDRREQ, "destination address required") \ 106 XX(EEXIST, "file already exists") \ 107 XX(EFAULT, "bad address in system call argument") \ 108 XX(EFBIG, "file too large") \ 109 XX(EHOSTUNREACH, "host is unreachable") \ 110 XX(EINTR, "interrupted system call") \ 111 XX(EINVAL, "invalid argument") \ 112 XX(EIO, "i/o error") \ 113 XX(EISCONN, "socket is already connected") \ 114 XX(EISDIR, "illegal operation on a directory") \ 115 XX(ELOOP, "too many symbolic links encountered") \ 116 XX(EMFILE, "too many open files") \ 117 XX(EMSGSIZE, "message too long") \ 118 XX(ENAMETOOLONG, "name too long") \ 119 XX(ENETDOWN, "network is down") \ 120 XX(ENETUNREACH, "network is unreachable") \ 121 XX(ENFILE, "file table overflow") \ 122 XX(ENOBUFS, "no buffer space available") \ 123 XX(ENODEV, "no such device") \ 124 XX(ENOENT, "no such file or directory") \ 125 XX(ENOMEM, "not enough memory") \ 126 XX(ENONET, "machine is not on the network") \ 127 XX(ENOPROTOOPT, "protocol not available") \ 128 XX(ENOSPC, "no space left on device") \ 129 XX(ENOSYS, "function not implemented") \ 130 XX(ENOTCONN, "socket is not connected") \ 131 XX(ENOTDIR, "not a directory") \ 132 XX(ENOTEMPTY, "directory not empty") \ 133 XX(ENOTSOCK, "socket operation on non-socket") \ 134 XX(ENOTSUP, "operation not supported on socket") \ 135 XX(EOVERFLOW, "value too large for defined data type") \ 136 XX(EPERM, "operation not permitted") \ 137 XX(EPIPE, "broken pipe") \ 138 XX(EPROTO, "protocol error") \ 139 XX(EPROTONOSUPPORT, "protocol not supported") \ 140 XX(EPROTOTYPE, "protocol wrong type for socket") \ 141 XX(ERANGE, "result too large") \ 142 XX(EROFS, "read-only file system") \ 143 XX(ESHUTDOWN, "cannot send after transport endpoint shutdown") \ 144 XX(ESPIPE, "invalid seek") \ 145 XX(ESRCH, "no such process") \ 146 XX(ETIMEDOUT, "connection timed out") \ 147 XX(ETXTBSY, "text file is busy") \ 148 XX(EXDEV, "cross-device link not permitted") \ 149 XX(UNKNOWN, "unknown error") \ 150 XX(EOF, "end of file") \ 151 XX(ENXIO, "no such device or address") \ 152 XX(EMLINK, "too many links") \ 153 XX(EHOSTDOWN, "host is down") \ 154 XX(EREMOTEIO, "remote I/O error") \ 155 XX(ENOTTY, "inappropriate ioctl for device") \ 156 XX(EFTYPE, "inappropriate file type or format") \ 157 XX(EILSEQ, "illegal byte sequence") \ 158 XX(ESOCKTNOSUPPORT, "socket type not supported") \ 159 XX(ENODATA, "no data available") \ 160 XX(EUNATCH, "protocol driver not attached") \ 161 XX(ENOEXEC, "exec format error") \ 162 163 #define UV_HANDLE_TYPE_MAP(XX) \ 164 XX(ASYNC, async) \ 165 XX(CHECK, check) \ 166 XX(FS_EVENT, fs_event) \ 167 XX(FS_POLL, fs_poll) \ 168 XX(HANDLE, handle) \ 169 XX(IDLE, idle) \ 170 XX(NAMED_PIPE, pipe) \ 171 XX(POLL, poll) \ 172 XX(PREPARE, prepare) \ 173 XX(PROCESS, process) \ 174 XX(STREAM, stream) \ 175 XX(TCP, tcp) \ 176 XX(TIMER, timer) \ 177 XX(TTY, tty) \ 178 XX(UDP, udp) \ 179 XX(SIGNAL, signal) \ 180 181 #define UV_REQ_TYPE_MAP(XX) \ 182 XX(REQ, req) \ 183 XX(CONNECT, connect) \ 184 XX(WRITE, write) \ 185 XX(SHUTDOWN, shutdown) \ 186 XX(UDP_SEND, udp_send) \ 187 XX(FS, fs) \ 188 XX(WORK, work) \ 189 XX(GETADDRINFO, getaddrinfo) \ 190 XX(GETNAMEINFO, getnameinfo) \ 191 XX(RANDOM, random) \ 192 193 typedef enum { 194 #define XX(code, _) UV_ ## code = UV__ ## code, 195 UV_ERRNO_MAP(XX) 196 #undef XX 197 UV_ERRNO_MAX = UV__EOF - 1 198 } uv_errno_t; 199 200 typedef enum { 201 UV_UNKNOWN_HANDLE = 0, 202 #define XX(uc, lc) UV_##uc, 203 UV_HANDLE_TYPE_MAP(XX) 204 #undef XX 205 UV_FILE, 206 UV_HANDLE_TYPE_MAX 207 } uv_handle_type; 208 209 typedef enum { 210 UV_UNKNOWN_REQ = 0, 211 #define XX(uc, lc) UV_##uc, 212 UV_REQ_TYPE_MAP(XX) 213 #undef XX 214 UV_REQ_TYPE_PRIVATE 215 UV_REQ_TYPE_MAX 216 } uv_req_type; 217 218 219 /* Handle types. */ 220 typedef struct uv_loop_s uv_loop_t; 221 typedef struct uv_handle_s uv_handle_t; 222 typedef struct uv_dir_s uv_dir_t; 223 typedef struct uv_stream_s uv_stream_t; 224 typedef struct uv_tcp_s uv_tcp_t; 225 typedef struct uv_udp_s uv_udp_t; 226 typedef struct uv_pipe_s uv_pipe_t; 227 typedef struct uv_tty_s uv_tty_t; 228 typedef struct uv_poll_s uv_poll_t; 229 typedef struct uv_timer_s uv_timer_t; 230 typedef struct uv_prepare_s uv_prepare_t; 231 typedef struct uv_check_s uv_check_t; 232 typedef struct uv_idle_s uv_idle_t; 233 typedef struct uv_async_s uv_async_t; 234 typedef struct uv_process_s uv_process_t; 235 typedef struct uv_fs_event_s uv_fs_event_t; 236 typedef struct uv_fs_poll_s uv_fs_poll_t; 237 typedef struct uv_signal_s uv_signal_t; 238 239 /* Request types. */ 240 typedef struct uv_req_s uv_req_t; 241 typedef struct uv_getaddrinfo_s uv_getaddrinfo_t; 242 typedef struct uv_getnameinfo_s uv_getnameinfo_t; 243 typedef struct uv_shutdown_s uv_shutdown_t; 244 typedef struct uv_write_s uv_write_t; 245 typedef struct uv_connect_s uv_connect_t; 246 typedef struct uv_udp_send_s uv_udp_send_t; 247 typedef struct uv_fs_s uv_fs_t; 248 typedef struct uv_work_s uv_work_t; 249 typedef struct uv_random_s uv_random_t; 250 251 /* None of the above. */ 252 typedef struct uv_env_item_s uv_env_item_t; 253 typedef struct uv_cpu_info_s uv_cpu_info_t; 254 typedef struct uv_interface_address_s uv_interface_address_t; 255 typedef struct uv_dirent_s uv_dirent_t; 256 typedef struct uv_passwd_s uv_passwd_t; 257 typedef struct uv_group_s uv_group_t; 258 typedef struct uv_utsname_s uv_utsname_t; 259 typedef struct uv_statfs_s uv_statfs_t; 260 261 typedef struct uv_metrics_s uv_metrics_t; 262 263 typedef enum { 264 UV_LOOP_BLOCK_SIGNAL = 0, 265 UV_METRICS_IDLE_TIME, 266 UV_LOOP_USE_IO_URING_SQPOLL 267 #define UV_LOOP_USE_IO_URING_SQPOLL UV_LOOP_USE_IO_URING_SQPOLL 268 } uv_loop_option; 269 270 typedef enum { 271 UV_RUN_DEFAULT = 0, 272 UV_RUN_ONCE, 273 UV_RUN_NOWAIT 274 } uv_run_mode; 275 276 277 UV_EXTERN unsigned int uv_version(void); 278 UV_EXTERN const char* uv_version_string(void); 279 280 typedef void* (*uv_malloc_func)(size_t size); 281 typedef void* (*uv_realloc_func)(void* ptr, size_t size); 282 typedef void* (*uv_calloc_func)(size_t count, size_t size); 283 typedef void (*uv_free_func)(void* ptr); 284 285 UV_EXTERN void uv_library_shutdown(void); 286 287 UV_EXTERN int uv_replace_allocator(uv_malloc_func malloc_func, 288 uv_realloc_func realloc_func, 289 uv_calloc_func calloc_func, 290 uv_free_func free_func); 291 292 UV_EXTERN uv_loop_t* uv_default_loop(void); 293 UV_EXTERN int uv_loop_init(uv_loop_t* loop); 294 UV_EXTERN int uv_loop_close(uv_loop_t* loop); 295 /* 296 * NOTE: 297 * This function is DEPRECATED, users should 298 * allocate the loop manually and use uv_loop_init instead. 299 */ 300 UV_EXTERN uv_loop_t* uv_loop_new(void); 301 /* 302 * NOTE: 303 * This function is DEPRECATED. Users should use 304 * uv_loop_close and free the memory manually instead. 305 */ 306 UV_EXTERN void uv_loop_delete(uv_loop_t*); 307 UV_EXTERN size_t uv_loop_size(void); 308 UV_EXTERN int uv_loop_alive(const uv_loop_t* loop); 309 UV_EXTERN int uv_loop_configure(uv_loop_t* loop, uv_loop_option option, ...); 310 UV_EXTERN int uv_loop_fork(uv_loop_t* loop); 311 312 UV_EXTERN int uv_run(uv_loop_t*, uv_run_mode mode); 313 UV_EXTERN void uv_stop(uv_loop_t*); 314 315 UV_EXTERN void uv_ref(uv_handle_t*); 316 UV_EXTERN void uv_unref(uv_handle_t*); 317 UV_EXTERN int uv_has_ref(const uv_handle_t*); 318 319 UV_EXTERN void uv_update_time(uv_loop_t*); 320 UV_EXTERN uint64_t uv_now(const uv_loop_t*); 321 322 UV_EXTERN int uv_backend_fd(const uv_loop_t*); 323 UV_EXTERN int uv_backend_timeout(const uv_loop_t*); 324 325 typedef void (*uv_alloc_cb)(uv_handle_t* handle, 326 size_t suggested_size, 327 uv_buf_t* buf); 328 typedef void (*uv_read_cb)(uv_stream_t* stream, 329 ssize_t nread, 330 const uv_buf_t* buf); 331 typedef void (*uv_write_cb)(uv_write_t* req, int status); 332 typedef void (*uv_connect_cb)(uv_connect_t* req, int status); 333 typedef void (*uv_shutdown_cb)(uv_shutdown_t* req, int status); 334 typedef void (*uv_connection_cb)(uv_stream_t* server, int status); 335 typedef void (*uv_close_cb)(uv_handle_t* handle); 336 typedef void (*uv_poll_cb)(uv_poll_t* handle, int status, int events); 337 typedef void (*uv_timer_cb)(uv_timer_t* handle); 338 typedef void (*uv_async_cb)(uv_async_t* handle); 339 typedef void (*uv_prepare_cb)(uv_prepare_t* handle); 340 typedef void (*uv_check_cb)(uv_check_t* handle); 341 typedef void (*uv_idle_cb)(uv_idle_t* handle); 342 typedef void (*uv_exit_cb)(uv_process_t*, int64_t exit_status, int term_signal); 343 typedef void (*uv_walk_cb)(uv_handle_t* handle, void* arg); 344 typedef void (*uv_fs_cb)(uv_fs_t* req); 345 typedef void (*uv_work_cb)(uv_work_t* req); 346 typedef void (*uv_after_work_cb)(uv_work_t* req, int status); 347 typedef void (*uv_getaddrinfo_cb)(uv_getaddrinfo_t* req, 348 int status, 349 struct addrinfo* res); 350 typedef void (*uv_getnameinfo_cb)(uv_getnameinfo_t* req, 351 int status, 352 const char* hostname, 353 const char* service); 354 typedef void (*uv_random_cb)(uv_random_t* req, 355 int status, 356 void* buf, 357 size_t buflen); 358 359 typedef enum { 360 UV_CLOCK_MONOTONIC, 361 UV_CLOCK_REALTIME 362 } uv_clock_id; 363 364 /* XXX(bnoordhuis) not 2038-proof, https://github.com/libuv/libuv/issues/3864 */ 365 typedef struct { 366 long tv_sec; 367 long tv_nsec; 368 } uv_timespec_t; 369 370 typedef struct { 371 int64_t tv_sec; 372 int32_t tv_nsec; 373 } uv_timespec64_t; 374 375 /* XXX(bnoordhuis) not 2038-proof, https://github.com/libuv/libuv/issues/3864 */ 376 typedef struct { 377 long tv_sec; 378 long tv_usec; 379 } uv_timeval_t; 380 381 typedef struct { 382 int64_t tv_sec; 383 int32_t tv_usec; 384 } uv_timeval64_t; 385 386 typedef struct { 387 uint64_t st_dev; 388 uint64_t st_mode; 389 uint64_t st_nlink; 390 uint64_t st_uid; 391 uint64_t st_gid; 392 uint64_t st_rdev; 393 uint64_t st_ino; 394 uint64_t st_size; 395 uint64_t st_blksize; 396 uint64_t st_blocks; 397 uint64_t st_flags; 398 uint64_t st_gen; 399 uv_timespec_t st_atim; 400 uv_timespec_t st_mtim; 401 uv_timespec_t st_ctim; 402 uv_timespec_t st_birthtim; 403 } uv_stat_t; 404 405 406 typedef void (*uv_fs_event_cb)(uv_fs_event_t* handle, 407 const char* filename, 408 int events, 409 int status); 410 411 typedef void (*uv_fs_poll_cb)(uv_fs_poll_t* handle, 412 int status, 413 const uv_stat_t* prev, 414 const uv_stat_t* curr); 415 416 typedef void (*uv_signal_cb)(uv_signal_t* handle, int signum); 417 418 419 typedef enum { 420 UV_LEAVE_GROUP = 0, 421 UV_JOIN_GROUP 422 } uv_membership; 423 424 425 UV_EXTERN int uv_translate_sys_error(int sys_errno); 426 427 UV_EXTERN const char* uv_strerror(int err); 428 UV_EXTERN char* uv_strerror_r(int err, char* buf, size_t buflen); 429 430 UV_EXTERN const char* uv_err_name(int err); 431 UV_EXTERN char* uv_err_name_r(int err, char* buf, size_t buflen); 432 433 434 #define UV_REQ_FIELDS \ 435 /* public */ \ 436 void* data; \ 437 /* read-only */ \ 438 uv_req_type type; \ 439 /* private */ \ 440 void* reserved[6]; \ 441 UV_REQ_PRIVATE_FIELDS \ 442 443 /* Abstract base class of all requests. */ 444 struct uv_req_s { 445 UV_REQ_FIELDS 446 }; 447 448 449 /* Platform-specific request types. */ 450 UV_PRIVATE_REQ_TYPES 451 452 453 UV_EXTERN int uv_shutdown(uv_shutdown_t* req, 454 uv_stream_t* handle, 455 uv_shutdown_cb cb); 456 457 struct uv_shutdown_s { 458 UV_REQ_FIELDS 459 uv_stream_t* handle; 460 uv_shutdown_cb cb; 461 UV_SHUTDOWN_PRIVATE_FIELDS 462 }; 463 464 465 #define UV_HANDLE_FIELDS \ 466 /* public */ \ 467 void* data; \ 468 /* read-only */ \ 469 uv_loop_t* loop; \ 470 uv_handle_type type; \ 471 /* private */ \ 472 uv_close_cb close_cb; \ 473 struct uv__queue handle_queue; \ 474 union { \ 475 int fd; \ 476 void* reserved[4]; \ 477 } u; \ 478 UV_HANDLE_PRIVATE_FIELDS \ 479 480 /* The abstract base class of all handles. */ 481 struct uv_handle_s { 482 UV_HANDLE_FIELDS 483 }; 484 485 UV_EXTERN size_t uv_handle_size(uv_handle_type type); 486 UV_EXTERN uv_handle_type uv_handle_get_type(const uv_handle_t* handle); 487 UV_EXTERN const char* uv_handle_type_name(uv_handle_type type); 488 UV_EXTERN void* uv_handle_get_data(const uv_handle_t* handle); 489 UV_EXTERN uv_loop_t* uv_handle_get_loop(const uv_handle_t* handle); 490 UV_EXTERN void uv_handle_set_data(uv_handle_t* handle, void* data); 491 492 UV_EXTERN size_t uv_req_size(uv_req_type type); 493 UV_EXTERN void* uv_req_get_data(const uv_req_t* req); 494 UV_EXTERN void uv_req_set_data(uv_req_t* req, void* data); 495 UV_EXTERN uv_req_type uv_req_get_type(const uv_req_t* req); 496 UV_EXTERN const char* uv_req_type_name(uv_req_type type); 497 498 UV_EXTERN int uv_is_active(const uv_handle_t* handle); 499 500 UV_EXTERN void uv_walk(uv_loop_t* loop, uv_walk_cb walk_cb, void* arg); 501 502 /* Helpers for ad hoc debugging, no API/ABI stability guaranteed. */ 503 UV_EXTERN void uv_print_all_handles(uv_loop_t* loop, FILE* stream); 504 UV_EXTERN void uv_print_active_handles(uv_loop_t* loop, FILE* stream); 505 506 UV_EXTERN void uv_close(uv_handle_t* handle, uv_close_cb close_cb); 507 508 UV_EXTERN int uv_send_buffer_size(uv_handle_t* handle, int* value); 509 UV_EXTERN int uv_recv_buffer_size(uv_handle_t* handle, int* value); 510 511 UV_EXTERN int uv_fileno(const uv_handle_t* handle, uv_os_fd_t* fd); 512 513 UV_EXTERN uv_buf_t uv_buf_init(char* base, unsigned int len); 514 515 UV_EXTERN int uv_pipe(uv_file fds[2], int read_flags, int write_flags); 516 UV_EXTERN int uv_socketpair(int type, 517 int protocol, 518 uv_os_sock_t socket_vector[2], 519 int flags0, 520 int flags1); 521 522 #define UV_STREAM_FIELDS \ 523 /* number of bytes queued for writing */ \ 524 size_t write_queue_size; \ 525 uv_alloc_cb alloc_cb; \ 526 uv_read_cb read_cb; \ 527 /* private */ \ 528 UV_STREAM_PRIVATE_FIELDS 529 530 /* 531 * uv_stream_t is a subclass of uv_handle_t. 532 * 533 * uv_stream is an abstract class. 534 * 535 * uv_stream_t is the parent class of uv_tcp_t, uv_pipe_t and uv_tty_t. 536 */ 537 struct uv_stream_s { 538 UV_HANDLE_FIELDS 539 UV_STREAM_FIELDS 540 }; 541 542 UV_EXTERN size_t uv_stream_get_write_queue_size(const uv_stream_t* stream); 543 544 UV_EXTERN int uv_listen(uv_stream_t* stream, int backlog, uv_connection_cb cb); 545 UV_EXTERN int uv_accept(uv_stream_t* server, uv_stream_t* client); 546 547 UV_EXTERN int uv_read_start(uv_stream_t*, 548 uv_alloc_cb alloc_cb, 549 uv_read_cb read_cb); 550 UV_EXTERN int uv_read_stop(uv_stream_t*); 551 552 UV_EXTERN int uv_write(uv_write_t* req, 553 uv_stream_t* handle, 554 const uv_buf_t bufs[], 555 unsigned int nbufs, 556 uv_write_cb cb); 557 UV_EXTERN int uv_write2(uv_write_t* req, 558 uv_stream_t* handle, 559 const uv_buf_t bufs[], 560 unsigned int nbufs, 561 uv_stream_t* send_handle, 562 uv_write_cb cb); 563 UV_EXTERN int uv_try_write(uv_stream_t* handle, 564 const uv_buf_t bufs[], 565 unsigned int nbufs); 566 UV_EXTERN int uv_try_write2(uv_stream_t* handle, 567 const uv_buf_t bufs[], 568 unsigned int nbufs, 569 uv_stream_t* send_handle); 570 571 /* uv_write_t is a subclass of uv_req_t. */ 572 struct uv_write_s { 573 UV_REQ_FIELDS 574 uv_write_cb cb; 575 uv_stream_t* send_handle; /* TODO: make private and unix-only in v2.x. */ 576 uv_stream_t* handle; 577 UV_WRITE_PRIVATE_FIELDS 578 }; 579 580 581 UV_EXTERN int uv_is_readable(const uv_stream_t* handle); 582 UV_EXTERN int uv_is_writable(const uv_stream_t* handle); 583 584 UV_EXTERN int uv_stream_set_blocking(uv_stream_t* handle, int blocking); 585 586 UV_EXTERN int uv_is_closing(const uv_handle_t* handle); 587 588 589 /* 590 * uv_tcp_t is a subclass of uv_stream_t. 591 * 592 * Represents a TCP stream or TCP server. 593 */ 594 struct uv_tcp_s { 595 UV_HANDLE_FIELDS 596 UV_STREAM_FIELDS 597 UV_TCP_PRIVATE_FIELDS 598 }; 599 600 UV_EXTERN int uv_tcp_init(uv_loop_t*, uv_tcp_t* handle); 601 UV_EXTERN int uv_tcp_init_ex(uv_loop_t*, uv_tcp_t* handle, unsigned int flags); 602 UV_EXTERN int uv_tcp_open(uv_tcp_t* handle, uv_os_sock_t sock); 603 UV_EXTERN int uv_tcp_nodelay(uv_tcp_t* handle, int enable); 604 UV_EXTERN int uv_tcp_keepalive(uv_tcp_t* handle, 605 int enable, 606 unsigned int delay); 607 UV_EXTERN int uv_tcp_simultaneous_accepts(uv_tcp_t* handle, int enable); 608 609 enum uv_tcp_flags { 610 /* Used with uv_tcp_bind, when an IPv6 address is used. */ 611 UV_TCP_IPV6ONLY = 1, 612 613 /* Enable SO_REUSEPORT socket option when binding the handle. 614 * This allows completely duplicate bindings by multiple processes 615 * or threads if they all set SO_REUSEPORT before binding the port. 616 * Incoming connections are distributed across the participating 617 * listener sockets. 618 * 619 * This flag is available only on Linux 3.9+, DragonFlyBSD 3.6+, 620 * FreeBSD 12.0+, Solaris 11.4, and AIX 7.2.5+ for now. 621 */ 622 UV_TCP_REUSEPORT = 2, 623 }; 624 625 UV_EXTERN int uv_tcp_bind(uv_tcp_t* handle, 626 const struct sockaddr* addr, 627 unsigned int flags); 628 UV_EXTERN int uv_tcp_getsockname(const uv_tcp_t* handle, 629 struct sockaddr* name, 630 int* namelen); 631 UV_EXTERN int uv_tcp_getpeername(const uv_tcp_t* handle, 632 struct sockaddr* name, 633 int* namelen); 634 UV_EXTERN int uv_tcp_close_reset(uv_tcp_t* handle, uv_close_cb close_cb); 635 UV_EXTERN int uv_tcp_connect(uv_connect_t* req, 636 uv_tcp_t* handle, 637 const struct sockaddr* addr, 638 uv_connect_cb cb); 639 640 /* uv_connect_t is a subclass of uv_req_t. */ 641 struct uv_connect_s { 642 UV_REQ_FIELDS 643 uv_connect_cb cb; 644 uv_stream_t* handle; 645 UV_CONNECT_PRIVATE_FIELDS 646 }; 647 648 649 /* 650 * UDP support. 651 */ 652 653 enum uv_udp_flags { 654 /* Disables dual stack mode. */ 655 UV_UDP_IPV6ONLY = 1, 656 /* 657 * Indicates message was truncated because read buffer was too small. The 658 * remainder was discarded by the OS. Used in uv_udp_recv_cb. 659 */ 660 UV_UDP_PARTIAL = 2, 661 /* 662 * Indicates if SO_REUSEADDR will be set when binding the handle. 663 * This sets the SO_REUSEPORT socket flag on the BSDs (except for 664 * DragonFlyBSD), OS X, and other platforms where SO_REUSEPORTs don't 665 * have the capability of load balancing, as the opposite of what 666 * UV_UDP_REUSEPORT would do. On other Unix platforms, it sets the 667 * SO_REUSEADDR flag. What that means is that multiple threads or 668 * processes can bind to the same address without error (provided 669 * they all set the flag) but only the last one to bind will receive 670 * any traffic, in effect "stealing" the port from the previous listener. 671 */ 672 UV_UDP_REUSEADDR = 4, 673 /* 674 * Indicates that the message was received by recvmmsg, so the buffer provided 675 * must not be freed by the recv_cb callback. 676 */ 677 UV_UDP_MMSG_CHUNK = 8, 678 /* 679 * Indicates that the buffer provided has been fully utilized by recvmmsg and 680 * that it should now be freed by the recv_cb callback. When this flag is set 681 * in uv_udp_recv_cb, nread will always be 0 and addr will always be NULL. 682 */ 683 UV_UDP_MMSG_FREE = 16, 684 /* 685 * Indicates if IP_RECVERR/IPV6_RECVERR will be set when binding the handle. 686 * This sets IP_RECVERR for IPv4 and IPV6_RECVERR for IPv6 UDP sockets on 687 * Linux. This stops the Linux kernel from suppressing some ICMP error 688 * messages and enables full ICMP error reporting for faster failover. 689 * This flag is no-op on platforms other than Linux. 690 */ 691 UV_UDP_LINUX_RECVERR = 32, 692 /* 693 * Indicates if SO_REUSEPORT will be set when binding the handle. 694 * This sets the SO_REUSEPORT socket option on supported platforms. 695 * Unlike UV_UDP_REUSEADDR, this flag will make multiple threads or 696 * processes that are binding to the same address and port "share" 697 * the port, which means incoming datagrams are distributed across 698 * the receiving sockets among threads or processes. 699 * 700 * This flag is available only on Linux 3.9+, DragonFlyBSD 3.6+, 701 * FreeBSD 12.0+, Solaris 11.4, and AIX 7.2.5+ for now. 702 */ 703 UV_UDP_REUSEPORT = 64, 704 /* 705 * Indicates that recvmmsg should be used, if available. 706 */ 707 UV_UDP_RECVMMSG = 256 708 }; 709 710 typedef void (*uv_udp_send_cb)(uv_udp_send_t* req, int status); 711 typedef void (*uv_udp_recv_cb)(uv_udp_t* handle, 712 ssize_t nread, 713 const uv_buf_t* buf, 714 const struct sockaddr* addr, 715 unsigned flags); 716 717 /* uv_udp_t is a subclass of uv_handle_t. */ 718 struct uv_udp_s { 719 UV_HANDLE_FIELDS 720 /* read-only */ 721 /* 722 * Number of bytes queued for sending. This field strictly shows how much 723 * information is currently queued. 724 */ 725 size_t send_queue_size; 726 /* 727 * Number of send requests currently in the queue awaiting to be processed. 728 */ 729 size_t send_queue_count; 730 UV_UDP_PRIVATE_FIELDS 731 }; 732 733 /* uv_udp_send_t is a subclass of uv_req_t. */ 734 struct uv_udp_send_s { 735 UV_REQ_FIELDS 736 uv_udp_t* handle; 737 uv_udp_send_cb cb; 738 UV_UDP_SEND_PRIVATE_FIELDS 739 }; 740 741 UV_EXTERN int uv_udp_init(uv_loop_t*, uv_udp_t* handle); 742 UV_EXTERN int uv_udp_init_ex(uv_loop_t*, uv_udp_t* handle, unsigned int flags); 743 UV_EXTERN int uv_udp_open(uv_udp_t* handle, uv_os_sock_t sock); 744 UV_EXTERN int uv_udp_bind(uv_udp_t* handle, 745 const struct sockaddr* addr, 746 unsigned int flags); 747 UV_EXTERN int uv_udp_connect(uv_udp_t* handle, const struct sockaddr* addr); 748 749 UV_EXTERN int uv_udp_getpeername(const uv_udp_t* handle, 750 struct sockaddr* name, 751 int* namelen); 752 UV_EXTERN int uv_udp_getsockname(const uv_udp_t* handle, 753 struct sockaddr* name, 754 int* namelen); 755 UV_EXTERN int uv_udp_set_membership(uv_udp_t* handle, 756 const char* multicast_addr, 757 const char* interface_addr, 758 uv_membership membership); 759 UV_EXTERN int uv_udp_set_source_membership(uv_udp_t* handle, 760 const char* multicast_addr, 761 const char* interface_addr, 762 const char* source_addr, 763 uv_membership membership); 764 UV_EXTERN int uv_udp_set_multicast_loop(uv_udp_t* handle, int on); 765 UV_EXTERN int uv_udp_set_multicast_ttl(uv_udp_t* handle, int ttl); 766 UV_EXTERN int uv_udp_set_multicast_interface(uv_udp_t* handle, 767 const char* interface_addr); 768 UV_EXTERN int uv_udp_set_broadcast(uv_udp_t* handle, int on); 769 UV_EXTERN int uv_udp_set_ttl(uv_udp_t* handle, int ttl); 770 UV_EXTERN int uv_udp_send(uv_udp_send_t* req, 771 uv_udp_t* handle, 772 const uv_buf_t bufs[], 773 unsigned int nbufs, 774 const struct sockaddr* addr, 775 uv_udp_send_cb send_cb); 776 UV_EXTERN int uv_udp_try_send(uv_udp_t* handle, 777 const uv_buf_t bufs[], 778 unsigned int nbufs, 779 const struct sockaddr* addr); 780 UV_EXTERN int uv_udp_try_send2(uv_udp_t* handle, 781 unsigned int count, 782 uv_buf_t* bufs[/*count*/], 783 unsigned int nbufs[/*count*/], 784 struct sockaddr* addrs[/*count*/], 785 unsigned int flags); 786 UV_EXTERN int uv_udp_recv_start(uv_udp_t* handle, 787 uv_alloc_cb alloc_cb, 788 uv_udp_recv_cb recv_cb); 789 UV_EXTERN int uv_udp_using_recvmmsg(const uv_udp_t* handle); 790 UV_EXTERN int uv_udp_recv_stop(uv_udp_t* handle); 791 UV_EXTERN size_t uv_udp_get_send_queue_size(const uv_udp_t* handle); 792 UV_EXTERN size_t uv_udp_get_send_queue_count(const uv_udp_t* handle); 793 794 795 /* 796 * uv_tty_t is a subclass of uv_stream_t. 797 * 798 * Representing a stream for the console. 799 */ 800 struct uv_tty_s { 801 UV_HANDLE_FIELDS 802 UV_STREAM_FIELDS 803 UV_TTY_PRIVATE_FIELDS 804 }; 805 806 typedef enum { 807 /* Initial/normal terminal mode */ 808 UV_TTY_MODE_NORMAL, 809 /* 810 * Raw input mode (On Windows, ENABLE_WINDOW_INPUT is also enabled). 811 * May become equivalent to UV_TTY_MODE_RAW_VT in future libuv versions. 812 */ 813 UV_TTY_MODE_RAW, 814 /* Binary-safe I/O mode for IPC (Unix-only) */ 815 UV_TTY_MODE_IO, 816 /* Raw input mode. On Windows ENABLE_VIRTUAL_TERMINAL_INPUT is also set. */ 817 UV_TTY_MODE_RAW_VT 818 } uv_tty_mode_t; 819 820 typedef enum { 821 /* 822 * The console supports handling of virtual terminal sequences 823 * (Windows10 new console, ConEmu) 824 */ 825 UV_TTY_SUPPORTED, 826 /* The console cannot process the virtual terminal sequence. (Legacy 827 * console) 828 */ 829 UV_TTY_UNSUPPORTED 830 } uv_tty_vtermstate_t; 831 832 833 UV_EXTERN int uv_tty_init(uv_loop_t*, uv_tty_t*, uv_file fd, int readable); 834 UV_EXTERN int uv_tty_set_mode(uv_tty_t*, uv_tty_mode_t mode); 835 UV_EXTERN int uv_tty_reset_mode(void); 836 UV_EXTERN int uv_tty_get_winsize(uv_tty_t*, int* width, int* height); 837 UV_EXTERN void uv_tty_set_vterm_state(uv_tty_vtermstate_t state); 838 UV_EXTERN int uv_tty_get_vterm_state(uv_tty_vtermstate_t* state); 839 840 #ifdef __cplusplus 841 extern "C++" { 842 843 inline int uv_tty_set_mode(uv_tty_t* handle, int mode) { 844 return uv_tty_set_mode(handle, static_cast<uv_tty_mode_t>(mode)); 845 } 846 847 } 848 #endif 849 850 UV_EXTERN uv_handle_type uv_guess_handle(uv_file file); 851 852 enum { 853 UV_PIPE_NO_TRUNCATE = 1u << 0 854 }; 855 856 /* 857 * uv_pipe_t is a subclass of uv_stream_t. 858 * 859 * Representing a pipe stream or pipe server. On Windows this is a Named 860 * Pipe. On Unix this is a Unix domain socket. 861 */ 862 struct uv_pipe_s { 863 UV_HANDLE_FIELDS 864 UV_STREAM_FIELDS 865 int ipc; /* non-zero if this pipe is used for passing handles */ 866 UV_PIPE_PRIVATE_FIELDS 867 }; 868 869 UV_EXTERN int uv_pipe_init(uv_loop_t*, uv_pipe_t* handle, int ipc); 870 UV_EXTERN int uv_pipe_open(uv_pipe_t*, uv_file file); 871 UV_EXTERN int uv_pipe_bind(uv_pipe_t* handle, const char* name); 872 UV_EXTERN int uv_pipe_bind2(uv_pipe_t* handle, 873 const char* name, 874 size_t namelen, 875 unsigned int flags); 876 UV_EXTERN void uv_pipe_connect(uv_connect_t* req, 877 uv_pipe_t* handle, 878 const char* name, 879 uv_connect_cb cb); 880 UV_EXTERN int uv_pipe_connect2(uv_connect_t* req, 881 uv_pipe_t* handle, 882 const char* name, 883 size_t namelen, 884 unsigned int flags, 885 uv_connect_cb cb); 886 UV_EXTERN int uv_pipe_getsockname(const uv_pipe_t* handle, 887 char* buffer, 888 size_t* size); 889 UV_EXTERN int uv_pipe_getpeername(const uv_pipe_t* handle, 890 char* buffer, 891 size_t* size); 892 UV_EXTERN void uv_pipe_pending_instances(uv_pipe_t* handle, int count); 893 UV_EXTERN int uv_pipe_pending_count(uv_pipe_t* handle); 894 UV_EXTERN uv_handle_type uv_pipe_pending_type(uv_pipe_t* handle); 895 UV_EXTERN int uv_pipe_chmod(uv_pipe_t* handle, int flags); 896 897 898 struct uv_poll_s { 899 UV_HANDLE_FIELDS 900 uv_poll_cb poll_cb; 901 UV_POLL_PRIVATE_FIELDS 902 }; 903 904 enum uv_poll_event { 905 UV_READABLE = 1, 906 UV_WRITABLE = 2, 907 UV_DISCONNECT = 4, 908 UV_PRIORITIZED = 8 909 }; 910 911 UV_EXTERN int uv_poll_init(uv_loop_t* loop, uv_poll_t* handle, int fd); 912 UV_EXTERN int uv_poll_init_socket(uv_loop_t* loop, 913 uv_poll_t* handle, 914 uv_os_sock_t socket); 915 UV_EXTERN int uv_poll_start(uv_poll_t* handle, int events, uv_poll_cb cb); 916 UV_EXTERN int uv_poll_stop(uv_poll_t* handle); 917 918 919 struct uv_prepare_s { 920 UV_HANDLE_FIELDS 921 UV_PREPARE_PRIVATE_FIELDS 922 }; 923 924 UV_EXTERN int uv_prepare_init(uv_loop_t*, uv_prepare_t* prepare); 925 UV_EXTERN int uv_prepare_start(uv_prepare_t* prepare, uv_prepare_cb cb); 926 UV_EXTERN int uv_prepare_stop(uv_prepare_t* prepare); 927 928 929 struct uv_check_s { 930 UV_HANDLE_FIELDS 931 UV_CHECK_PRIVATE_FIELDS 932 }; 933 934 UV_EXTERN int uv_check_init(uv_loop_t*, uv_check_t* check); 935 UV_EXTERN int uv_check_start(uv_check_t* check, uv_check_cb cb); 936 UV_EXTERN int uv_check_stop(uv_check_t* check); 937 938 939 struct uv_idle_s { 940 UV_HANDLE_FIELDS 941 UV_IDLE_PRIVATE_FIELDS 942 }; 943 944 UV_EXTERN int uv_idle_init(uv_loop_t*, uv_idle_t* idle); 945 UV_EXTERN int uv_idle_start(uv_idle_t* idle, uv_idle_cb cb); 946 UV_EXTERN int uv_idle_stop(uv_idle_t* idle); 947 948 949 struct uv_async_s { 950 UV_HANDLE_FIELDS 951 UV_ASYNC_PRIVATE_FIELDS 952 }; 953 954 UV_EXTERN int uv_async_init(uv_loop_t*, 955 uv_async_t* async, 956 uv_async_cb async_cb); 957 UV_EXTERN int uv_async_send(uv_async_t* async); 958 959 960 /* 961 * uv_timer_t is a subclass of uv_handle_t. 962 * 963 * Used to get woken up at a specified time in the future. 964 */ 965 struct uv_timer_s { 966 UV_HANDLE_FIELDS 967 UV_TIMER_PRIVATE_FIELDS 968 }; 969 970 UV_EXTERN int uv_timer_init(uv_loop_t*, uv_timer_t* handle); 971 UV_EXTERN int uv_timer_start(uv_timer_t* handle, 972 uv_timer_cb cb, 973 uint64_t timeout, 974 uint64_t repeat); 975 UV_EXTERN int uv_timer_stop(uv_timer_t* handle); 976 UV_EXTERN int uv_timer_again(uv_timer_t* handle); 977 UV_EXTERN void uv_timer_set_repeat(uv_timer_t* handle, uint64_t repeat); 978 UV_EXTERN uint64_t uv_timer_get_repeat(const uv_timer_t* handle); 979 UV_EXTERN uint64_t uv_timer_get_due_in(const uv_timer_t* handle); 980 981 982 /* 983 * uv_getaddrinfo_t is a subclass of uv_req_t. 984 * 985 * Request object for uv_getaddrinfo. 986 */ 987 struct uv_getaddrinfo_s { 988 UV_REQ_FIELDS 989 /* read-only */ 990 uv_loop_t* loop; 991 /* struct addrinfo* addrinfo is marked as private, but it really isn't. */ 992 UV_GETADDRINFO_PRIVATE_FIELDS 993 }; 994 995 996 UV_EXTERN int uv_getaddrinfo(uv_loop_t* loop, 997 uv_getaddrinfo_t* req, 998 uv_getaddrinfo_cb getaddrinfo_cb, 999 const char* node, 1000 const char* service, 1001 const struct addrinfo* hints); 1002 UV_EXTERN void uv_freeaddrinfo(struct addrinfo* ai); 1003 1004 1005 /* 1006 * uv_getnameinfo_t is a subclass of uv_req_t. 1007 * 1008 * Request object for uv_getnameinfo. 1009 */ 1010 struct uv_getnameinfo_s { 1011 UV_REQ_FIELDS 1012 /* read-only */ 1013 uv_loop_t* loop; 1014 /* host and service are marked as private, but they really aren't. */ 1015 UV_GETNAMEINFO_PRIVATE_FIELDS 1016 }; 1017 1018 UV_EXTERN int uv_getnameinfo(uv_loop_t* loop, 1019 uv_getnameinfo_t* req, 1020 uv_getnameinfo_cb getnameinfo_cb, 1021 const struct sockaddr* addr, 1022 int flags); 1023 1024 1025 /* uv_spawn() options. */ 1026 typedef enum { 1027 UV_IGNORE = 0x00, 1028 UV_CREATE_PIPE = 0x01, 1029 UV_INHERIT_FD = 0x02, 1030 UV_INHERIT_STREAM = 0x04, 1031 1032 /* 1033 * When UV_CREATE_PIPE is specified, UV_READABLE_PIPE and UV_WRITABLE_PIPE 1034 * determine the direction of flow, from the child process' perspective. Both 1035 * flags may be specified to create a duplex data stream. 1036 */ 1037 UV_READABLE_PIPE = 0x10, 1038 UV_WRITABLE_PIPE = 0x20, 1039 1040 /* 1041 * When UV_CREATE_PIPE is specified, specifying UV_NONBLOCK_PIPE opens the 1042 * handle in non-blocking mode in the child. This may cause loss of data, 1043 * if the child is not designed to handle to encounter this mode, 1044 * but can also be significantly more efficient. 1045 */ 1046 UV_NONBLOCK_PIPE = 0x40, 1047 UV_OVERLAPPED_PIPE = 0x40 /* old name, for compatibility */ 1048 } uv_stdio_flags; 1049 1050 typedef struct uv_stdio_container_s { 1051 uv_stdio_flags flags; 1052 1053 union { 1054 uv_stream_t* stream; 1055 int fd; 1056 } data; 1057 } uv_stdio_container_t; 1058 1059 typedef struct uv_process_options_s { 1060 uv_exit_cb exit_cb; /* Called after the process exits. */ 1061 const char* file; /* Path to program to execute. */ 1062 /* 1063 * Command line arguments. args[0] should be the path to the program. On 1064 * Windows this uses CreateProcess which concatenates the arguments into a 1065 * string this can cause some strange errors. See the note at 1066 * windows_verbatim_arguments. 1067 */ 1068 char** args; 1069 /* 1070 * This will be set as the environ variable in the subprocess. If this is 1071 * NULL then the parents environ will be used. 1072 */ 1073 char** env; 1074 /* 1075 * If non-null this represents a directory the subprocess should execute 1076 * in. Stands for current working directory. 1077 */ 1078 const char* cwd; 1079 /* 1080 * Various flags that control how uv_spawn() behaves. See the definition of 1081 * `enum uv_process_flags` below. 1082 */ 1083 unsigned int flags; 1084 /* 1085 * The `stdio` field points to an array of uv_stdio_container_t structs that 1086 * describe the file descriptors that will be made available to the child 1087 * process. The convention is that stdio[0] points to stdin, fd 1 is used for 1088 * stdout, and fd 2 is stderr. 1089 * 1090 * Note that on windows file descriptors greater than 2 are available to the 1091 * child process only if the child processes uses the MSVCRT runtime. 1092 */ 1093 int stdio_count; 1094 uv_stdio_container_t* stdio; 1095 /* 1096 * Libuv can change the child process' user/group id. This happens only when 1097 * the appropriate bits are set in the flags fields. This is not supported on 1098 * windows; uv_spawn() will fail and set the error to UV_ENOTSUP. 1099 */ 1100 uv_uid_t uid; 1101 uv_gid_t gid; 1102 } uv_process_options_t; 1103 1104 /* 1105 * These are the flags that can be used for the uv_process_options.flags field. 1106 */ 1107 enum uv_process_flags { 1108 /* 1109 * Set the child process' user id. The user id is supplied in the `uid` field 1110 * of the options struct. This does not work on windows; setting this flag 1111 * will cause uv_spawn() to fail. 1112 */ 1113 UV_PROCESS_SETUID = (1 << 0), 1114 /* 1115 * Set the child process' group id. The user id is supplied in the `gid` 1116 * field of the options struct. This does not work on windows; setting this 1117 * flag will cause uv_spawn() to fail. 1118 */ 1119 UV_PROCESS_SETGID = (1 << 1), 1120 /* 1121 * Do not wrap any arguments in quotes, or perform any other escaping, when 1122 * converting the argument list into a command line string. This option is 1123 * only meaningful on Windows systems. On Unix it is silently ignored. 1124 */ 1125 UV_PROCESS_WINDOWS_VERBATIM_ARGUMENTS = (1 << 2), 1126 /* 1127 * Spawn the child process in a detached state - this will make it a process 1128 * group leader, and will effectively enable the child to keep running after 1129 * the parent exits. Note that the child process will still keep the 1130 * parent's event loop alive unless the parent process calls uv_unref() on 1131 * the child's process handle. 1132 */ 1133 UV_PROCESS_DETACHED = (1 << 3), 1134 /* 1135 * Hide the subprocess window that would normally be created. This option is 1136 * only meaningful on Windows systems. On Unix it is silently ignored. 1137 */ 1138 UV_PROCESS_WINDOWS_HIDE = (1 << 4), 1139 /* 1140 * Hide the subprocess console window that would normally be created. This 1141 * option is only meaningful on Windows systems. On Unix it is silently 1142 * ignored. 1143 */ 1144 UV_PROCESS_WINDOWS_HIDE_CONSOLE = (1 << 5), 1145 /* 1146 * Hide the subprocess GUI window that would normally be created. This 1147 * option is only meaningful on Windows systems. On Unix it is silently 1148 * ignored. 1149 */ 1150 UV_PROCESS_WINDOWS_HIDE_GUI = (1 << 6), 1151 /* 1152 * On Windows, if the path to the program to execute, specified in 1153 * uv_process_options_t's file field, has a directory component, 1154 * search for the exact file name before trying variants with 1155 * extensions like '.exe' or '.cmd'. 1156 */ 1157 UV_PROCESS_WINDOWS_FILE_PATH_EXACT_NAME = (1 << 7) 1158 }; 1159 1160 /* 1161 * uv_process_t is a subclass of uv_handle_t. 1162 */ 1163 struct uv_process_s { 1164 UV_HANDLE_FIELDS 1165 uv_exit_cb exit_cb; 1166 int pid; 1167 UV_PROCESS_PRIVATE_FIELDS 1168 }; 1169 1170 UV_EXTERN int uv_spawn(uv_loop_t* loop, 1171 uv_process_t* handle, 1172 const uv_process_options_t* options); 1173 UV_EXTERN int uv_process_kill(uv_process_t*, int signum); 1174 UV_EXTERN int uv_kill(int pid, int signum); 1175 UV_EXTERN uv_pid_t uv_process_get_pid(const uv_process_t*); 1176 1177 1178 /* 1179 * uv_work_t is a subclass of uv_req_t. 1180 */ 1181 struct uv_work_s { 1182 UV_REQ_FIELDS 1183 uv_loop_t* loop; 1184 uv_work_cb work_cb; 1185 uv_after_work_cb after_work_cb; 1186 UV_WORK_PRIVATE_FIELDS 1187 }; 1188 1189 UV_EXTERN int uv_queue_work(uv_loop_t* loop, 1190 uv_work_t* req, 1191 uv_work_cb work_cb, 1192 uv_after_work_cb after_work_cb); 1193 1194 UV_EXTERN int uv_cancel(uv_req_t* req); 1195 1196 1197 struct uv_cpu_times_s { 1198 uint64_t user; /* milliseconds */ 1199 uint64_t nice; /* milliseconds */ 1200 uint64_t sys; /* milliseconds */ 1201 uint64_t idle; /* milliseconds */ 1202 uint64_t irq; /* milliseconds */ 1203 }; 1204 1205 struct uv_cpu_info_s { 1206 char* model; 1207 int speed; 1208 struct uv_cpu_times_s cpu_times; 1209 }; 1210 1211 struct uv_interface_address_s { 1212 char* name; 1213 char phys_addr[6]; 1214 int is_internal; 1215 union { 1216 struct sockaddr_in address4; 1217 struct sockaddr_in6 address6; 1218 } address; 1219 union { 1220 struct sockaddr_in netmask4; 1221 struct sockaddr_in6 netmask6; 1222 } netmask; 1223 }; 1224 1225 struct uv_passwd_s { 1226 char* username; 1227 unsigned long uid; 1228 unsigned long gid; 1229 char* shell; 1230 char* homedir; 1231 }; 1232 1233 struct uv_group_s { 1234 char* groupname; 1235 unsigned long gid; 1236 char** members; 1237 }; 1238 1239 struct uv_utsname_s { 1240 char sysname[256]; 1241 char release[256]; 1242 char version[256]; 1243 char machine[256]; 1244 /* This struct does not contain the nodename and domainname fields present in 1245 the utsname type. domainname is a GNU extension. Both fields are referred 1246 to as meaningless in the docs. */ 1247 }; 1248 1249 struct uv_statfs_s { 1250 uint64_t f_type; 1251 uint64_t f_bsize; 1252 uint64_t f_blocks; 1253 uint64_t f_bfree; 1254 uint64_t f_bavail; 1255 uint64_t f_files; 1256 uint64_t f_ffree; 1257 uint64_t f_spare[4]; 1258 }; 1259 1260 typedef enum { 1261 UV_DIRENT_UNKNOWN, 1262 UV_DIRENT_FILE, 1263 UV_DIRENT_DIR, 1264 UV_DIRENT_LINK, 1265 UV_DIRENT_FIFO, 1266 UV_DIRENT_SOCKET, 1267 UV_DIRENT_CHAR, 1268 UV_DIRENT_BLOCK 1269 } uv_dirent_type_t; 1270 1271 struct uv_dirent_s { 1272 const char* name; 1273 uv_dirent_type_t type; 1274 }; 1275 1276 UV_EXTERN char** uv_setup_args(int argc, char** argv); 1277 UV_EXTERN int uv_get_process_title(char* buffer, size_t size); 1278 UV_EXTERN int uv_set_process_title(const char* title); 1279 UV_EXTERN int uv_resident_set_memory(size_t* rss); 1280 UV_EXTERN int uv_uptime(double* uptime); 1281 UV_EXTERN uv_os_fd_t uv_get_osfhandle(int fd); 1282 UV_EXTERN int uv_open_osfhandle(uv_os_fd_t os_fd); 1283 1284 typedef struct { 1285 uv_timeval_t ru_utime; /* user CPU time used */ 1286 uv_timeval_t ru_stime; /* system CPU time used */ 1287 uint64_t ru_maxrss; /* maximum resident set size */ 1288 uint64_t ru_ixrss; /* integral shared memory size */ 1289 uint64_t ru_idrss; /* integral unshared data size */ 1290 uint64_t ru_isrss; /* integral unshared stack size */ 1291 uint64_t ru_minflt; /* page reclaims (soft page faults) */ 1292 uint64_t ru_majflt; /* page faults (hard page faults) */ 1293 uint64_t ru_nswap; /* swaps */ 1294 uint64_t ru_inblock; /* block input operations */ 1295 uint64_t ru_oublock; /* block output operations */ 1296 uint64_t ru_msgsnd; /* IPC messages sent */ 1297 uint64_t ru_msgrcv; /* IPC messages received */ 1298 uint64_t ru_nsignals; /* signals received */ 1299 uint64_t ru_nvcsw; /* voluntary context switches */ 1300 uint64_t ru_nivcsw; /* involuntary context switches */ 1301 } uv_rusage_t; 1302 1303 UV_EXTERN int uv_getrusage(uv_rusage_t* rusage); 1304 UV_EXTERN int uv_getrusage_thread(uv_rusage_t* rusage); 1305 1306 UV_EXTERN int uv_os_homedir(char* buffer, size_t* size); 1307 UV_EXTERN int uv_os_tmpdir(char* buffer, size_t* size); 1308 UV_EXTERN int uv_os_get_passwd(uv_passwd_t* pwd); 1309 UV_EXTERN void uv_os_free_passwd(uv_passwd_t* pwd); 1310 UV_EXTERN int uv_os_get_passwd2(uv_passwd_t* pwd, uv_uid_t uid); 1311 UV_EXTERN int uv_os_get_group(uv_group_t* grp, uv_uid_t gid); 1312 UV_EXTERN void uv_os_free_group(uv_group_t* grp); 1313 UV_EXTERN uv_pid_t uv_os_getpid(void); 1314 UV_EXTERN uv_pid_t uv_os_getppid(void); 1315 1316 #if defined(__PASE__) 1317 /* On IBM i PASE, the highest process priority is -10 */ 1318 # define UV_PRIORITY_LOW 39 /* RUNPTY(99) */ 1319 # define UV_PRIORITY_BELOW_NORMAL 15 /* RUNPTY(50) */ 1320 # define UV_PRIORITY_NORMAL 0 /* RUNPTY(20) */ 1321 # define UV_PRIORITY_ABOVE_NORMAL -4 /* RUNTY(12) */ 1322 # define UV_PRIORITY_HIGH -7 /* RUNPTY(6) */ 1323 # define UV_PRIORITY_HIGHEST -10 /* RUNPTY(1) */ 1324 #else 1325 # define UV_PRIORITY_LOW 19 1326 # define UV_PRIORITY_BELOW_NORMAL 10 1327 # define UV_PRIORITY_NORMAL 0 1328 # define UV_PRIORITY_ABOVE_NORMAL -7 1329 # define UV_PRIORITY_HIGH -14 1330 # define UV_PRIORITY_HIGHEST -20 1331 #endif 1332 1333 UV_EXTERN int uv_os_getpriority(uv_pid_t pid, int* priority); 1334 UV_EXTERN int uv_os_setpriority(uv_pid_t pid, int priority); 1335 1336 enum { 1337 UV_THREAD_PRIORITY_HIGHEST = 2, 1338 UV_THREAD_PRIORITY_ABOVE_NORMAL = 1, 1339 UV_THREAD_PRIORITY_NORMAL = 0, 1340 UV_THREAD_PRIORITY_BELOW_NORMAL = -1, 1341 UV_THREAD_PRIORITY_LOWEST = -2, 1342 }; 1343 1344 UV_EXTERN int uv_thread_getpriority(uv_thread_t tid, int* priority); 1345 UV_EXTERN int uv_thread_setpriority(uv_thread_t tid, int priority); 1346 1347 UV_EXTERN unsigned int uv_available_parallelism(void); 1348 UV_EXTERN int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count); 1349 UV_EXTERN void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count); 1350 UV_EXTERN int uv_cpumask_size(void); 1351 1352 UV_EXTERN int uv_interface_addresses(uv_interface_address_t** addresses, 1353 int* count); 1354 UV_EXTERN void uv_free_interface_addresses(uv_interface_address_t* addresses, 1355 int count); 1356 1357 struct uv_env_item_s { 1358 char* name; 1359 char* value; 1360 }; 1361 1362 UV_EXTERN int uv_os_environ(uv_env_item_t** envitems, int* count); 1363 UV_EXTERN void uv_os_free_environ(uv_env_item_t* envitems, int count); 1364 UV_EXTERN int uv_os_getenv(const char* name, char* buffer, size_t* size); 1365 UV_EXTERN int uv_os_setenv(const char* name, const char* value); 1366 UV_EXTERN int uv_os_unsetenv(const char* name); 1367 1368 #ifdef MAXHOSTNAMELEN 1369 # define UV_MAXHOSTNAMESIZE (MAXHOSTNAMELEN + 1) 1370 #else 1371 /* 1372 Fallback for the maximum hostname size, including the null terminator. The 1373 Windows gethostname() documentation states that 256 bytes will always be 1374 large enough to hold the null-terminated hostname. 1375 */ 1376 # define UV_MAXHOSTNAMESIZE 256 1377 #endif 1378 1379 UV_EXTERN int uv_os_gethostname(char* buffer, size_t* size); 1380 1381 UV_EXTERN int uv_os_uname(uv_utsname_t* buffer); 1382 1383 struct uv_metrics_s { 1384 uint64_t loop_count; 1385 uint64_t events; 1386 uint64_t events_waiting; 1387 /* private */ 1388 uint64_t* reserved[13]; 1389 }; 1390 1391 UV_EXTERN int uv_metrics_info(uv_loop_t* loop, uv_metrics_t* metrics); 1392 UV_EXTERN uint64_t uv_metrics_idle_time(uv_loop_t* loop); 1393 1394 typedef enum { 1395 UV_FS_UNKNOWN = -1, 1396 UV_FS_CUSTOM, 1397 UV_FS_OPEN, 1398 UV_FS_CLOSE, 1399 UV_FS_READ, 1400 UV_FS_WRITE, 1401 UV_FS_SENDFILE, 1402 UV_FS_STAT, 1403 UV_FS_LSTAT, 1404 UV_FS_FSTAT, 1405 UV_FS_FTRUNCATE, 1406 UV_FS_UTIME, 1407 UV_FS_FUTIME, 1408 UV_FS_ACCESS, 1409 UV_FS_CHMOD, 1410 UV_FS_FCHMOD, 1411 UV_FS_FSYNC, 1412 UV_FS_FDATASYNC, 1413 UV_FS_UNLINK, 1414 UV_FS_RMDIR, 1415 UV_FS_MKDIR, 1416 UV_FS_MKDTEMP, 1417 UV_FS_RENAME, 1418 UV_FS_SCANDIR, 1419 UV_FS_LINK, 1420 UV_FS_SYMLINK, 1421 UV_FS_READLINK, 1422 UV_FS_CHOWN, 1423 UV_FS_FCHOWN, 1424 UV_FS_REALPATH, 1425 UV_FS_COPYFILE, 1426 UV_FS_LCHOWN, 1427 UV_FS_OPENDIR, 1428 UV_FS_READDIR, 1429 UV_FS_CLOSEDIR, 1430 UV_FS_STATFS, 1431 UV_FS_MKSTEMP, 1432 UV_FS_LUTIME 1433 } uv_fs_type; 1434 1435 struct uv_dir_s { 1436 uv_dirent_t* dirents; 1437 size_t nentries; 1438 void* reserved[4]; 1439 UV_DIR_PRIVATE_FIELDS 1440 }; 1441 1442 /* uv_fs_t is a subclass of uv_req_t. */ 1443 struct uv_fs_s { 1444 UV_REQ_FIELDS 1445 uv_fs_type fs_type; 1446 uv_loop_t* loop; 1447 uv_fs_cb cb; 1448 ssize_t result; 1449 void* ptr; 1450 const char* path; 1451 uv_stat_t statbuf; /* Stores the result of uv_fs_stat() and uv_fs_fstat(). */ 1452 UV_FS_PRIVATE_FIELDS 1453 }; 1454 1455 UV_EXTERN uv_fs_type uv_fs_get_type(const uv_fs_t*); 1456 UV_EXTERN ssize_t uv_fs_get_result(const uv_fs_t*); 1457 UV_EXTERN int uv_fs_get_system_error(const uv_fs_t*); 1458 UV_EXTERN void* uv_fs_get_ptr(const uv_fs_t*); 1459 UV_EXTERN const char* uv_fs_get_path(const uv_fs_t*); 1460 UV_EXTERN uv_stat_t* uv_fs_get_statbuf(uv_fs_t*); 1461 1462 UV_EXTERN void uv_fs_req_cleanup(uv_fs_t* req); 1463 UV_EXTERN int uv_fs_close(uv_loop_t* loop, 1464 uv_fs_t* req, 1465 uv_file file, 1466 uv_fs_cb cb); 1467 UV_EXTERN int uv_fs_open(uv_loop_t* loop, 1468 uv_fs_t* req, 1469 const char* path, 1470 int flags, 1471 int mode, 1472 uv_fs_cb cb); 1473 UV_EXTERN int uv_fs_read(uv_loop_t* loop, 1474 uv_fs_t* req, 1475 uv_file file, 1476 const uv_buf_t bufs[], 1477 unsigned int nbufs, 1478 int64_t offset, 1479 uv_fs_cb cb); 1480 UV_EXTERN int uv_fs_unlink(uv_loop_t* loop, 1481 uv_fs_t* req, 1482 const char* path, 1483 uv_fs_cb cb); 1484 UV_EXTERN int uv_fs_write(uv_loop_t* loop, 1485 uv_fs_t* req, 1486 uv_file file, 1487 const uv_buf_t bufs[], 1488 unsigned int nbufs, 1489 int64_t offset, 1490 uv_fs_cb cb); 1491 /* 1492 * This flag can be used with uv_fs_copyfile() to return an error if the 1493 * destination already exists. 1494 */ 1495 #define UV_FS_COPYFILE_EXCL 0x0001 1496 1497 /* 1498 * This flag can be used with uv_fs_copyfile() to attempt to create a reflink. 1499 * If copy-on-write is not supported, a fallback copy mechanism is used. 1500 */ 1501 #define UV_FS_COPYFILE_FICLONE 0x0002 1502 1503 /* 1504 * This flag can be used with uv_fs_copyfile() to attempt to create a reflink. 1505 * If copy-on-write is not supported, an error is returned. 1506 */ 1507 #define UV_FS_COPYFILE_FICLONE_FORCE 0x0004 1508 1509 UV_EXTERN int uv_fs_copyfile(uv_loop_t* loop, 1510 uv_fs_t* req, 1511 const char* path, 1512 const char* new_path, 1513 int flags, 1514 uv_fs_cb cb); 1515 UV_EXTERN int uv_fs_mkdir(uv_loop_t* loop, 1516 uv_fs_t* req, 1517 const char* path, 1518 int mode, 1519 uv_fs_cb cb); 1520 UV_EXTERN int uv_fs_mkdtemp(uv_loop_t* loop, 1521 uv_fs_t* req, 1522 const char* tpl, 1523 uv_fs_cb cb); 1524 UV_EXTERN int uv_fs_mkstemp(uv_loop_t* loop, 1525 uv_fs_t* req, 1526 const char* tpl, 1527 uv_fs_cb cb); 1528 UV_EXTERN int uv_fs_rmdir(uv_loop_t* loop, 1529 uv_fs_t* req, 1530 const char* path, 1531 uv_fs_cb cb); 1532 UV_EXTERN int uv_fs_scandir(uv_loop_t* loop, 1533 uv_fs_t* req, 1534 const char* path, 1535 int flags, 1536 uv_fs_cb cb); 1537 UV_EXTERN int uv_fs_scandir_next(uv_fs_t* req, 1538 uv_dirent_t* ent); 1539 UV_EXTERN int uv_fs_opendir(uv_loop_t* loop, 1540 uv_fs_t* req, 1541 const char* path, 1542 uv_fs_cb cb); 1543 UV_EXTERN int uv_fs_readdir(uv_loop_t* loop, 1544 uv_fs_t* req, 1545 uv_dir_t* dir, 1546 uv_fs_cb cb); 1547 UV_EXTERN int uv_fs_closedir(uv_loop_t* loop, 1548 uv_fs_t* req, 1549 uv_dir_t* dir, 1550 uv_fs_cb cb); 1551 UV_EXTERN int uv_fs_stat(uv_loop_t* loop, 1552 uv_fs_t* req, 1553 const char* path, 1554 uv_fs_cb cb); 1555 UV_EXTERN int uv_fs_fstat(uv_loop_t* loop, 1556 uv_fs_t* req, 1557 uv_file file, 1558 uv_fs_cb cb); 1559 UV_EXTERN int uv_fs_rename(uv_loop_t* loop, 1560 uv_fs_t* req, 1561 const char* path, 1562 const char* new_path, 1563 uv_fs_cb cb); 1564 UV_EXTERN int uv_fs_fsync(uv_loop_t* loop, 1565 uv_fs_t* req, 1566 uv_file file, 1567 uv_fs_cb cb); 1568 UV_EXTERN int uv_fs_fdatasync(uv_loop_t* loop, 1569 uv_fs_t* req, 1570 uv_file file, 1571 uv_fs_cb cb); 1572 UV_EXTERN int uv_fs_ftruncate(uv_loop_t* loop, 1573 uv_fs_t* req, 1574 uv_file file, 1575 int64_t offset, 1576 uv_fs_cb cb); 1577 UV_EXTERN int uv_fs_sendfile(uv_loop_t* loop, 1578 uv_fs_t* req, 1579 uv_file out_fd, 1580 uv_file in_fd, 1581 int64_t in_offset, 1582 size_t length, 1583 uv_fs_cb cb); 1584 UV_EXTERN int uv_fs_access(uv_loop_t* loop, 1585 uv_fs_t* req, 1586 const char* path, 1587 int mode, 1588 uv_fs_cb cb); 1589 UV_EXTERN int uv_fs_chmod(uv_loop_t* loop, 1590 uv_fs_t* req, 1591 const char* path, 1592 int mode, 1593 uv_fs_cb cb); 1594 #define UV_FS_UTIME_NOW (INFINITY) 1595 #define UV_FS_UTIME_OMIT (NAN) 1596 UV_EXTERN int uv_fs_utime(uv_loop_t* loop, 1597 uv_fs_t* req, 1598 const char* path, 1599 double atime, 1600 double mtime, 1601 uv_fs_cb cb); 1602 UV_EXTERN int uv_fs_futime(uv_loop_t* loop, 1603 uv_fs_t* req, 1604 uv_file file, 1605 double atime, 1606 double mtime, 1607 uv_fs_cb cb); 1608 UV_EXTERN int uv_fs_lutime(uv_loop_t* loop, 1609 uv_fs_t* req, 1610 const char* path, 1611 double atime, 1612 double mtime, 1613 uv_fs_cb cb); 1614 UV_EXTERN int uv_fs_lstat(uv_loop_t* loop, 1615 uv_fs_t* req, 1616 const char* path, 1617 uv_fs_cb cb); 1618 UV_EXTERN int uv_fs_link(uv_loop_t* loop, 1619 uv_fs_t* req, 1620 const char* path, 1621 const char* new_path, 1622 uv_fs_cb cb); 1623 1624 /* 1625 * This flag can be used with uv_fs_symlink() on Windows to specify whether 1626 * path argument points to a directory. 1627 */ 1628 #define UV_FS_SYMLINK_DIR 0x0001 1629 1630 /* 1631 * This flag can be used with uv_fs_symlink() on Windows to specify whether 1632 * the symlink is to be created using junction points. 1633 */ 1634 #define UV_FS_SYMLINK_JUNCTION 0x0002 1635 1636 UV_EXTERN int uv_fs_symlink(uv_loop_t* loop, 1637 uv_fs_t* req, 1638 const char* path, 1639 const char* new_path, 1640 int flags, 1641 uv_fs_cb cb); 1642 UV_EXTERN int uv_fs_readlink(uv_loop_t* loop, 1643 uv_fs_t* req, 1644 const char* path, 1645 uv_fs_cb cb); 1646 UV_EXTERN int uv_fs_realpath(uv_loop_t* loop, 1647 uv_fs_t* req, 1648 const char* path, 1649 uv_fs_cb cb); 1650 UV_EXTERN int uv_fs_fchmod(uv_loop_t* loop, 1651 uv_fs_t* req, 1652 uv_file file, 1653 int mode, 1654 uv_fs_cb cb); 1655 UV_EXTERN int uv_fs_chown(uv_loop_t* loop, 1656 uv_fs_t* req, 1657 const char* path, 1658 uv_uid_t uid, 1659 uv_gid_t gid, 1660 uv_fs_cb cb); 1661 UV_EXTERN int uv_fs_fchown(uv_loop_t* loop, 1662 uv_fs_t* req, 1663 uv_file file, 1664 uv_uid_t uid, 1665 uv_gid_t gid, 1666 uv_fs_cb cb); 1667 UV_EXTERN int uv_fs_lchown(uv_loop_t* loop, 1668 uv_fs_t* req, 1669 const char* path, 1670 uv_uid_t uid, 1671 uv_gid_t gid, 1672 uv_fs_cb cb); 1673 UV_EXTERN int uv_fs_statfs(uv_loop_t* loop, 1674 uv_fs_t* req, 1675 const char* path, 1676 uv_fs_cb cb); 1677 1678 1679 enum uv_fs_event { 1680 UV_RENAME = 1, 1681 UV_CHANGE = 2 1682 }; 1683 1684 1685 struct uv_fs_event_s { 1686 UV_HANDLE_FIELDS 1687 /* private */ 1688 char* path; 1689 UV_FS_EVENT_PRIVATE_FIELDS 1690 }; 1691 1692 1693 /* 1694 * uv_fs_stat() based polling file watcher. 1695 */ 1696 struct uv_fs_poll_s { 1697 UV_HANDLE_FIELDS 1698 /* Private, don't touch. */ 1699 void* poll_ctx; 1700 }; 1701 1702 UV_EXTERN int uv_fs_poll_init(uv_loop_t* loop, uv_fs_poll_t* handle); 1703 UV_EXTERN int uv_fs_poll_start(uv_fs_poll_t* handle, 1704 uv_fs_poll_cb poll_cb, 1705 const char* path, 1706 unsigned int interval); 1707 UV_EXTERN int uv_fs_poll_stop(uv_fs_poll_t* handle); 1708 UV_EXTERN int uv_fs_poll_getpath(uv_fs_poll_t* handle, 1709 char* buffer, 1710 size_t* size); 1711 1712 1713 struct uv_signal_s { 1714 UV_HANDLE_FIELDS 1715 uv_signal_cb signal_cb; 1716 int signum; 1717 UV_SIGNAL_PRIVATE_FIELDS 1718 }; 1719 1720 UV_EXTERN int uv_signal_init(uv_loop_t* loop, uv_signal_t* handle); 1721 UV_EXTERN int uv_signal_start(uv_signal_t* handle, 1722 uv_signal_cb signal_cb, 1723 int signum); 1724 UV_EXTERN int uv_signal_start_oneshot(uv_signal_t* handle, 1725 uv_signal_cb signal_cb, 1726 int signum); 1727 UV_EXTERN int uv_signal_stop(uv_signal_t* handle); 1728 1729 UV_EXTERN void uv_loadavg(double avg[3]); 1730 1731 1732 /* 1733 * Flags to be passed to uv_fs_event_start(). 1734 */ 1735 enum uv_fs_event_flags { 1736 /* 1737 * By default, if the fs event watcher is given a directory name, we will 1738 * watch for all events in that directory. This flags overrides this behavior 1739 * and makes fs_event report only changes to the directory entry itself. This 1740 * flag does not affect individual files watched. 1741 * This flag is currently not implemented yet on any backend. 1742 */ 1743 UV_FS_EVENT_WATCH_ENTRY = 1, 1744 1745 /* 1746 * By default uv_fs_event will try to use a kernel interface such as inotify 1747 * or kqueue to detect events. This may not work on remote filesystems such 1748 * as NFS mounts. This flag makes fs_event fall back to calling stat() on a 1749 * regular interval. 1750 * This flag is currently not implemented yet on any backend. 1751 */ 1752 UV_FS_EVENT_STAT = 2, 1753 1754 /* 1755 * By default, event watcher, when watching directory, is not registering 1756 * (is ignoring) changes in it's subdirectories. 1757 * This flag will override this behaviour on platforms that support it. 1758 */ 1759 UV_FS_EVENT_RECURSIVE = 4 1760 }; 1761 1762 1763 UV_EXTERN int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle); 1764 UV_EXTERN int uv_fs_event_start(uv_fs_event_t* handle, 1765 uv_fs_event_cb cb, 1766 const char* path, 1767 unsigned int flags); 1768 UV_EXTERN int uv_fs_event_stop(uv_fs_event_t* handle); 1769 UV_EXTERN int uv_fs_event_getpath(uv_fs_event_t* handle, 1770 char* buffer, 1771 size_t* size); 1772 1773 UV_EXTERN int uv_ip4_addr(const char* ip, int port, struct sockaddr_in* addr); 1774 UV_EXTERN int uv_ip6_addr(const char* ip, int port, struct sockaddr_in6* addr); 1775 1776 UV_EXTERN int uv_ip4_name(const struct sockaddr_in* src, char* dst, size_t size); 1777 UV_EXTERN int uv_ip6_name(const struct sockaddr_in6* src, char* dst, size_t size); 1778 UV_EXTERN int uv_ip_name(const struct sockaddr* src, char* dst, size_t size); 1779 1780 UV_EXTERN int uv_inet_ntop(int af, const void* src, char* dst, size_t size); 1781 UV_EXTERN int uv_inet_pton(int af, const char* src, void* dst); 1782 1783 1784 struct uv_random_s { 1785 UV_REQ_FIELDS 1786 /* read-only */ 1787 uv_loop_t* loop; 1788 /* private */ 1789 int status; 1790 void* buf; 1791 size_t buflen; 1792 uv_random_cb cb; 1793 struct uv__work work_req; 1794 }; 1795 1796 UV_EXTERN int uv_random(uv_loop_t* loop, 1797 uv_random_t* req, 1798 void *buf, 1799 size_t buflen, 1800 unsigned flags, /* For future extension; must be 0. */ 1801 uv_random_cb cb); 1802 1803 #if defined(IF_NAMESIZE) 1804 # define UV_IF_NAMESIZE (IF_NAMESIZE + 1) 1805 #elif defined(IFNAMSIZ) 1806 # define UV_IF_NAMESIZE (IFNAMSIZ + 1) 1807 #else 1808 # define UV_IF_NAMESIZE (16 + 1) 1809 #endif 1810 1811 UV_EXTERN int uv_if_indextoname(unsigned int ifindex, 1812 char* buffer, 1813 size_t* size); 1814 UV_EXTERN int uv_if_indextoiid(unsigned int ifindex, 1815 char* buffer, 1816 size_t* size); 1817 1818 UV_EXTERN int uv_exepath(char* buffer, size_t* size); 1819 1820 UV_EXTERN int uv_cwd(char* buffer, size_t* size); 1821 1822 UV_EXTERN int uv_chdir(const char* dir); 1823 1824 UV_EXTERN uint64_t uv_get_free_memory(void); 1825 UV_EXTERN uint64_t uv_get_total_memory(void); 1826 UV_EXTERN uint64_t uv_get_constrained_memory(void); 1827 UV_EXTERN uint64_t uv_get_available_memory(void); 1828 1829 UV_EXTERN int uv_clock_gettime(uv_clock_id clock_id, uv_timespec64_t* ts); 1830 UV_EXTERN uint64_t uv_hrtime(void); 1831 UV_EXTERN void uv_sleep(unsigned int msec); 1832 1833 UV_EXTERN void uv_disable_stdio_inheritance(void); 1834 1835 UV_EXTERN int uv_dlopen(const char* filename, uv_lib_t* lib); 1836 UV_EXTERN void uv_dlclose(uv_lib_t* lib); 1837 UV_EXTERN int uv_dlsym(uv_lib_t* lib, const char* name, void** ptr); 1838 UV_EXTERN const char* uv_dlerror(const uv_lib_t* lib); 1839 1840 UV_EXTERN int uv_mutex_init(uv_mutex_t* handle); 1841 UV_EXTERN int uv_mutex_init_recursive(uv_mutex_t* handle); 1842 UV_EXTERN void uv_mutex_destroy(uv_mutex_t* handle); 1843 UV_EXTERN void uv_mutex_lock(uv_mutex_t* handle); 1844 UV_EXTERN int uv_mutex_trylock(uv_mutex_t* handle); 1845 UV_EXTERN void uv_mutex_unlock(uv_mutex_t* handle); 1846 1847 UV_EXTERN int uv_rwlock_init(uv_rwlock_t* rwlock); 1848 UV_EXTERN void uv_rwlock_destroy(uv_rwlock_t* rwlock); 1849 UV_EXTERN void uv_rwlock_rdlock(uv_rwlock_t* rwlock); 1850 UV_EXTERN int uv_rwlock_tryrdlock(uv_rwlock_t* rwlock); 1851 UV_EXTERN void uv_rwlock_rdunlock(uv_rwlock_t* rwlock); 1852 UV_EXTERN void uv_rwlock_wrlock(uv_rwlock_t* rwlock); 1853 UV_EXTERN int uv_rwlock_trywrlock(uv_rwlock_t* rwlock); 1854 UV_EXTERN void uv_rwlock_wrunlock(uv_rwlock_t* rwlock); 1855 1856 UV_EXTERN int uv_sem_init(uv_sem_t* sem, unsigned int value); 1857 UV_EXTERN void uv_sem_destroy(uv_sem_t* sem); 1858 UV_EXTERN void uv_sem_post(uv_sem_t* sem); 1859 UV_EXTERN void uv_sem_wait(uv_sem_t* sem); 1860 UV_EXTERN int uv_sem_trywait(uv_sem_t* sem); 1861 1862 UV_EXTERN int uv_cond_init(uv_cond_t* cond); 1863 UV_EXTERN void uv_cond_destroy(uv_cond_t* cond); 1864 UV_EXTERN void uv_cond_signal(uv_cond_t* cond); 1865 UV_EXTERN void uv_cond_broadcast(uv_cond_t* cond); 1866 1867 UV_EXTERN int uv_barrier_init(uv_barrier_t* barrier, unsigned int count); 1868 UV_EXTERN void uv_barrier_destroy(uv_barrier_t* barrier); 1869 UV_EXTERN int uv_barrier_wait(uv_barrier_t* barrier); 1870 1871 UV_EXTERN void uv_cond_wait(uv_cond_t* cond, uv_mutex_t* mutex); 1872 UV_EXTERN int uv_cond_timedwait(uv_cond_t* cond, 1873 uv_mutex_t* mutex, 1874 uint64_t timeout); 1875 1876 UV_EXTERN void uv_once(uv_once_t* guard, void (*callback)(void)); 1877 1878 UV_EXTERN int uv_key_create(uv_key_t* key); 1879 UV_EXTERN void uv_key_delete(uv_key_t* key); 1880 UV_EXTERN void* uv_key_get(uv_key_t* key); 1881 UV_EXTERN void uv_key_set(uv_key_t* key, void* value); 1882 1883 UV_EXTERN int uv_gettimeofday(uv_timeval64_t* tv); 1884 1885 typedef void (*uv_thread_cb)(void* arg); 1886 1887 UV_EXTERN int uv_thread_create(uv_thread_t* tid, uv_thread_cb entry, void* arg); 1888 UV_EXTERN int uv_thread_detach(uv_thread_t* tid); 1889 1890 typedef enum { 1891 UV_THREAD_NO_FLAGS = 0x00, 1892 UV_THREAD_HAS_STACK_SIZE = 0x01 1893 } uv_thread_create_flags; 1894 1895 struct uv_thread_options_s { 1896 unsigned int flags; 1897 size_t stack_size; 1898 /* More fields may be added at any time. */ 1899 }; 1900 1901 typedef struct uv_thread_options_s uv_thread_options_t; 1902 1903 UV_EXTERN int uv_thread_create_ex(uv_thread_t* tid, 1904 const uv_thread_options_t* params, 1905 uv_thread_cb entry, 1906 void* arg); 1907 UV_EXTERN int uv_thread_setaffinity(uv_thread_t* tid, 1908 char* cpumask, 1909 char* oldmask, 1910 size_t mask_size); 1911 UV_EXTERN int uv_thread_getaffinity(uv_thread_t* tid, 1912 char* cpumask, 1913 size_t mask_size); 1914 UV_EXTERN int uv_thread_getcpu(void); 1915 UV_EXTERN uv_thread_t uv_thread_self(void); 1916 UV_EXTERN int uv_thread_join(uv_thread_t *tid); 1917 UV_EXTERN int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2); 1918 UV_EXTERN int uv_thread_setname(const char* name); 1919 UV_EXTERN int uv_thread_getname(uv_thread_t* tid, char* name, size_t size); 1920 1921 1922 /* The presence of these unions force similar struct layout. */ 1923 #define XX(_, name) uv_ ## name ## _t name; 1924 union uv_any_handle { 1925 UV_HANDLE_TYPE_MAP(XX) 1926 }; 1927 1928 union uv_any_req { 1929 UV_REQ_TYPE_MAP(XX) 1930 }; 1931 #undef XX 1932 1933 1934 struct uv_loop_s { 1935 /* User data - use this for whatever. */ 1936 void* data; 1937 /* Loop reference counting. */ 1938 unsigned int active_handles; 1939 struct uv__queue handle_queue; 1940 union { 1941 void* unused; 1942 unsigned int count; 1943 } active_reqs; 1944 /* Internal storage for future extensions. */ 1945 void* internal_fields; 1946 /* Internal flag to signal loop stop. */ 1947 unsigned int stop_flag; 1948 UV_LOOP_PRIVATE_FIELDS 1949 }; 1950 1951 UV_EXTERN void* uv_loop_get_data(const uv_loop_t*); 1952 UV_EXTERN void uv_loop_set_data(uv_loop_t*, void* data); 1953 1954 /* Unicode utilities needed for dealing with Windows. */ 1955 UV_EXTERN size_t uv_utf16_length_as_wtf8(const uint16_t* utf16, 1956 ssize_t utf16_len); 1957 UV_EXTERN int uv_utf16_to_wtf8(const uint16_t* utf16, 1958 ssize_t utf16_len, 1959 char** wtf8_ptr, 1960 size_t* wtf8_len_ptr); 1961 UV_EXTERN ssize_t uv_wtf8_length_as_utf16(const char* wtf8); 1962 UV_EXTERN void uv_wtf8_to_utf16(const char* wtf8, 1963 uint16_t* utf16, 1964 size_t utf16_len); 1965 1966 /* Don't export the private CPP symbols. */ 1967 #undef UV_HANDLE_TYPE_PRIVATE 1968 #undef UV_REQ_TYPE_PRIVATE 1969 #undef UV_REQ_PRIVATE_FIELDS 1970 #undef UV_STREAM_PRIVATE_FIELDS 1971 #undef UV_TCP_PRIVATE_FIELDS 1972 #undef UV_PREPARE_PRIVATE_FIELDS 1973 #undef UV_CHECK_PRIVATE_FIELDS 1974 #undef UV_IDLE_PRIVATE_FIELDS 1975 #undef UV_ASYNC_PRIVATE_FIELDS 1976 #undef UV_TIMER_PRIVATE_FIELDS 1977 #undef UV_GETADDRINFO_PRIVATE_FIELDS 1978 #undef UV_GETNAMEINFO_PRIVATE_FIELDS 1979 #undef UV_FS_REQ_PRIVATE_FIELDS 1980 #undef UV_WORK_PRIVATE_FIELDS 1981 #undef UV_FS_EVENT_PRIVATE_FIELDS 1982 #undef UV_SIGNAL_PRIVATE_FIELDS 1983 #undef UV_LOOP_PRIVATE_FIELDS 1984 #undef UV_LOOP_PRIVATE_PLATFORM_FIELDS 1985 #undef UV__ERR 1986 1987 #ifdef __cplusplus 1988 } 1989 #endif 1990 #endif /* UV_H */
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