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 | #include "uv.h" |
23 | #include "uv-common.h" |
24 | |
25 | #include <assert.h> |
26 | #include <errno.h> |
27 | #include <stdarg.h> |
28 | #include <stddef.h> /* NULL */ |
29 | #include <stdio.h> |
30 | #include <stdlib.h> /* malloc */ |
31 | #include <string.h> /* memset */ |
32 | |
33 | #if defined(_WIN32) |
34 | # include <malloc.h> /* malloc */ |
35 | #else |
36 | # include <net/if.h> /* if_nametoindex */ |
37 | # include <sys/un.h> /* AF_UNIX, sockaddr_un */ |
38 | #endif |
39 | |
40 | |
41 | typedef struct { |
42 | uv_malloc_func local_malloc; |
43 | uv_realloc_func local_realloc; |
44 | uv_calloc_func local_calloc; |
45 | uv_free_func local_free; |
46 | } uv__allocator_t; |
47 | |
48 | static uv__allocator_t uv__allocator = { |
49 | malloc, |
50 | realloc, |
51 | calloc, |
52 | free, |
53 | }; |
54 | |
55 | char* uv__strdup(const char* s) { |
56 | size_t len = strlen(s) + 1; |
57 | char* m = uv__malloc(len); |
58 | if (m == NULL) |
59 | return NULL; |
60 | return memcpy(m, s, len); |
61 | } |
62 | |
63 | char* uv__strndup(const char* s, size_t n) { |
64 | char* m; |
65 | size_t len = strlen(s); |
66 | if (n < len) |
67 | len = n; |
68 | m = uv__malloc(len + 1); |
69 | if (m == NULL) |
70 | return NULL; |
71 | m[len] = '\0'; |
72 | return memcpy(m, s, len); |
73 | } |
74 | |
75 | void* uv__malloc(size_t size) { |
76 | if (size > 0) |
77 | return uv__allocator.local_malloc(size); |
78 | return NULL; |
79 | } |
80 | |
81 | void uv__free(void* ptr) { |
82 | int saved_errno; |
83 | |
84 | /* Libuv expects that free() does not clobber errno. The system allocator |
85 | * honors that assumption but custom allocators may not be so careful. |
86 | */ |
87 | saved_errno = errno; |
88 | uv__allocator.local_free(ptr); |
89 | errno = saved_errno; |
90 | } |
91 | |
92 | void* uv__calloc(size_t count, size_t size) { |
93 | return uv__allocator.local_calloc(count, size); |
94 | } |
95 | |
96 | void* uv__realloc(void* ptr, size_t size) { |
97 | if (size > 0) |
98 | return uv__allocator.local_realloc(ptr, size); |
99 | uv__free(ptr); |
100 | return NULL; |
101 | } |
102 | |
103 | int uv_replace_allocator(uv_malloc_func malloc_func, |
104 | uv_realloc_func realloc_func, |
105 | uv_calloc_func calloc_func, |
106 | uv_free_func free_func) { |
107 | if (malloc_func == NULL || realloc_func == NULL || |
108 | calloc_func == NULL || free_func == NULL) { |
109 | return UV_EINVAL; |
110 | } |
111 | |
112 | uv__allocator.local_malloc = malloc_func; |
113 | uv__allocator.local_realloc = realloc_func; |
114 | uv__allocator.local_calloc = calloc_func; |
115 | uv__allocator.local_free = free_func; |
116 | |
117 | return 0; |
118 | } |
119 | |
120 | #define XX(uc, lc) case UV_##uc: return sizeof(uv_##lc##_t); |
121 | |
122 | size_t uv_handle_size(uv_handle_type type) { |
123 | switch (type) { |
124 | UV_HANDLE_TYPE_MAP(XX) |
125 | default: |
126 | return -1; |
127 | } |
128 | } |
129 | |
130 | size_t uv_req_size(uv_req_type type) { |
131 | switch(type) { |
132 | UV_REQ_TYPE_MAP(XX) |
133 | default: |
134 | return -1; |
135 | } |
136 | } |
137 | |
138 | #undef XX |
139 | |
140 | |
141 | size_t uv_loop_size(void) { |
142 | return sizeof(uv_loop_t); |
143 | } |
144 | |
145 | |
146 | uv_buf_t uv_buf_init(char* base, unsigned int len) { |
147 | uv_buf_t buf; |
148 | buf.base = base; |
149 | buf.len = len; |
150 | return buf; |
151 | } |
152 | |
153 | |
154 | static const char* uv__unknown_err_code(int err) { |
155 | char buf[32]; |
156 | char* copy; |
157 | |
158 | snprintf(buf, sizeof(buf), "Unknown system error %d" , err); |
159 | copy = uv__strdup(buf); |
160 | |
161 | return copy != NULL ? copy : "Unknown system error" ; |
162 | } |
163 | |
164 | #define UV_ERR_NAME_GEN_R(name, _) \ |
165 | case UV_## name: \ |
166 | uv__strscpy(buf, #name, buflen); break; |
167 | char* uv_err_name_r(int err, char* buf, size_t buflen) { |
168 | switch (err) { |
169 | UV_ERRNO_MAP(UV_ERR_NAME_GEN_R) |
170 | default: snprintf(buf, buflen, "Unknown system error %d" , err); |
171 | } |
172 | return buf; |
173 | } |
174 | #undef UV_ERR_NAME_GEN_R |
175 | |
176 | |
177 | #define UV_ERR_NAME_GEN(name, _) case UV_ ## name: return #name; |
178 | const char* uv_err_name(int err) { |
179 | switch (err) { |
180 | UV_ERRNO_MAP(UV_ERR_NAME_GEN) |
181 | } |
182 | return uv__unknown_err_code(err); |
183 | } |
184 | #undef UV_ERR_NAME_GEN |
185 | |
186 | |
187 | #define UV_STRERROR_GEN_R(name, msg) \ |
188 | case UV_ ## name: \ |
189 | snprintf(buf, buflen, "%s", msg); break; |
190 | char* uv_strerror_r(int err, char* buf, size_t buflen) { |
191 | switch (err) { |
192 | UV_ERRNO_MAP(UV_STRERROR_GEN_R) |
193 | default: snprintf(buf, buflen, "Unknown system error %d" , err); |
194 | } |
195 | return buf; |
196 | } |
197 | #undef UV_STRERROR_GEN_R |
198 | |
199 | |
200 | #define UV_STRERROR_GEN(name, msg) case UV_ ## name: return msg; |
201 | const char* uv_strerror(int err) { |
202 | switch (err) { |
203 | UV_ERRNO_MAP(UV_STRERROR_GEN) |
204 | } |
205 | return uv__unknown_err_code(err); |
206 | } |
207 | #undef UV_STRERROR_GEN |
208 | |
209 | |
210 | int uv_ip4_addr(const char* ip, int port, struct sockaddr_in* addr) { |
211 | memset(addr, 0, sizeof(*addr)); |
212 | addr->sin_family = AF_INET; |
213 | addr->sin_port = htons(port); |
214 | return uv_inet_pton(AF_INET, ip, &(addr->sin_addr.s_addr)); |
215 | } |
216 | |
217 | |
218 | int uv_ip6_addr(const char* ip, int port, struct sockaddr_in6* addr) { |
219 | char address_part[40]; |
220 | size_t address_part_size; |
221 | const char* zone_index; |
222 | |
223 | memset(addr, 0, sizeof(*addr)); |
224 | addr->sin6_family = AF_INET6; |
225 | addr->sin6_port = htons(port); |
226 | #ifdef SIN6_LEN |
227 | addr->sin6_len = sizeof(*addr); |
228 | #endif |
229 | |
230 | zone_index = strchr(ip, '%'); |
231 | if (zone_index != NULL) { |
232 | address_part_size = zone_index - ip; |
233 | if (address_part_size >= sizeof(address_part)) |
234 | address_part_size = sizeof(address_part) - 1; |
235 | |
236 | memcpy(address_part, ip, address_part_size); |
237 | address_part[address_part_size] = '\0'; |
238 | ip = address_part; |
239 | |
240 | zone_index++; /* skip '%' */ |
241 | /* NOTE: unknown interface (id=0) is silently ignored */ |
242 | #ifdef _WIN32 |
243 | addr->sin6_scope_id = atoi(zone_index); |
244 | #else |
245 | addr->sin6_scope_id = if_nametoindex(zone_index); |
246 | #endif |
247 | } |
248 | |
249 | return uv_inet_pton(AF_INET6, ip, &addr->sin6_addr); |
250 | } |
251 | |
252 | |
253 | int uv_ip4_name(const struct sockaddr_in* src, char* dst, size_t size) { |
254 | return uv_inet_ntop(AF_INET, &src->sin_addr, dst, size); |
255 | } |
256 | |
257 | |
258 | int uv_ip6_name(const struct sockaddr_in6* src, char* dst, size_t size) { |
259 | return uv_inet_ntop(AF_INET6, &src->sin6_addr, dst, size); |
260 | } |
261 | |
262 | |
263 | int uv_tcp_bind(uv_tcp_t* handle, |
264 | const struct sockaddr* addr, |
265 | unsigned int flags) { |
266 | unsigned int addrlen; |
267 | |
268 | if (handle->type != UV_TCP) |
269 | return UV_EINVAL; |
270 | |
271 | if (addr->sa_family == AF_INET) |
272 | addrlen = sizeof(struct sockaddr_in); |
273 | else if (addr->sa_family == AF_INET6) |
274 | addrlen = sizeof(struct sockaddr_in6); |
275 | else |
276 | return UV_EINVAL; |
277 | |
278 | return uv__tcp_bind(handle, addr, addrlen, flags); |
279 | } |
280 | |
281 | |
282 | int uv_udp_bind(uv_udp_t* handle, |
283 | const struct sockaddr* addr, |
284 | unsigned int flags) { |
285 | unsigned int addrlen; |
286 | |
287 | if (handle->type != UV_UDP) |
288 | return UV_EINVAL; |
289 | |
290 | if (addr->sa_family == AF_INET) |
291 | addrlen = sizeof(struct sockaddr_in); |
292 | else if (addr->sa_family == AF_INET6) |
293 | addrlen = sizeof(struct sockaddr_in6); |
294 | else |
295 | return UV_EINVAL; |
296 | |
297 | return uv__udp_bind(handle, addr, addrlen, flags); |
298 | } |
299 | |
300 | |
301 | int uv_tcp_connect(uv_connect_t* req, |
302 | uv_tcp_t* handle, |
303 | const struct sockaddr* addr, |
304 | uv_connect_cb cb) { |
305 | unsigned int addrlen; |
306 | |
307 | if (handle->type != UV_TCP) |
308 | return UV_EINVAL; |
309 | |
310 | if (addr->sa_family == AF_INET) |
311 | addrlen = sizeof(struct sockaddr_in); |
312 | else if (addr->sa_family == AF_INET6) |
313 | addrlen = sizeof(struct sockaddr_in6); |
314 | else |
315 | return UV_EINVAL; |
316 | |
317 | return uv__tcp_connect(req, handle, addr, addrlen, cb); |
318 | } |
319 | |
320 | |
321 | int uv_udp_connect(uv_udp_t* handle, const struct sockaddr* addr) { |
322 | unsigned int addrlen; |
323 | |
324 | if (handle->type != UV_UDP) |
325 | return UV_EINVAL; |
326 | |
327 | /* Disconnect the handle */ |
328 | if (addr == NULL) { |
329 | if (!(handle->flags & UV_HANDLE_UDP_CONNECTED)) |
330 | return UV_ENOTCONN; |
331 | |
332 | return uv__udp_disconnect(handle); |
333 | } |
334 | |
335 | if (addr->sa_family == AF_INET) |
336 | addrlen = sizeof(struct sockaddr_in); |
337 | else if (addr->sa_family == AF_INET6) |
338 | addrlen = sizeof(struct sockaddr_in6); |
339 | else |
340 | return UV_EINVAL; |
341 | |
342 | if (handle->flags & UV_HANDLE_UDP_CONNECTED) |
343 | return UV_EISCONN; |
344 | |
345 | return uv__udp_connect(handle, addr, addrlen); |
346 | } |
347 | |
348 | |
349 | int uv__udp_is_connected(uv_udp_t* handle) { |
350 | struct sockaddr_storage addr; |
351 | int addrlen; |
352 | if (handle->type != UV_UDP) |
353 | return 0; |
354 | |
355 | addrlen = sizeof(addr); |
356 | if (uv_udp_getpeername(handle, (struct sockaddr*) &addr, &addrlen) != 0) |
357 | return 0; |
358 | |
359 | return addrlen > 0; |
360 | } |
361 | |
362 | |
363 | int uv__udp_check_before_send(uv_udp_t* handle, const struct sockaddr* addr) { |
364 | unsigned int addrlen; |
365 | |
366 | if (handle->type != UV_UDP) |
367 | return UV_EINVAL; |
368 | |
369 | if (addr != NULL && (handle->flags & UV_HANDLE_UDP_CONNECTED)) |
370 | return UV_EISCONN; |
371 | |
372 | if (addr == NULL && !(handle->flags & UV_HANDLE_UDP_CONNECTED)) |
373 | return UV_EDESTADDRREQ; |
374 | |
375 | if (addr != NULL) { |
376 | if (addr->sa_family == AF_INET) |
377 | addrlen = sizeof(struct sockaddr_in); |
378 | else if (addr->sa_family == AF_INET6) |
379 | addrlen = sizeof(struct sockaddr_in6); |
380 | #if defined(AF_UNIX) && !defined(_WIN32) |
381 | else if (addr->sa_family == AF_UNIX) |
382 | addrlen = sizeof(struct sockaddr_un); |
383 | #endif |
384 | else |
385 | return UV_EINVAL; |
386 | } else { |
387 | addrlen = 0; |
388 | } |
389 | |
390 | return addrlen; |
391 | } |
392 | |
393 | |
394 | int uv_udp_send(uv_udp_send_t* req, |
395 | uv_udp_t* handle, |
396 | const uv_buf_t bufs[], |
397 | unsigned int nbufs, |
398 | const struct sockaddr* addr, |
399 | uv_udp_send_cb send_cb) { |
400 | int addrlen; |
401 | |
402 | addrlen = uv__udp_check_before_send(handle, addr); |
403 | if (addrlen < 0) |
404 | return addrlen; |
405 | |
406 | return uv__udp_send(req, handle, bufs, nbufs, addr, addrlen, send_cb); |
407 | } |
408 | |
409 | |
410 | int uv_udp_try_send(uv_udp_t* handle, |
411 | const uv_buf_t bufs[], |
412 | unsigned int nbufs, |
413 | const struct sockaddr* addr) { |
414 | int addrlen; |
415 | |
416 | addrlen = uv__udp_check_before_send(handle, addr); |
417 | if (addrlen < 0) |
418 | return addrlen; |
419 | |
420 | return uv__udp_try_send(handle, bufs, nbufs, addr, addrlen); |
421 | } |
422 | |
423 | |
424 | int uv_udp_recv_start(uv_udp_t* handle, |
425 | uv_alloc_cb alloc_cb, |
426 | uv_udp_recv_cb recv_cb) { |
427 | if (handle->type != UV_UDP || alloc_cb == NULL || recv_cb == NULL) |
428 | return UV_EINVAL; |
429 | else |
430 | return uv__udp_recv_start(handle, alloc_cb, recv_cb); |
431 | } |
432 | |
433 | |
434 | int uv_udp_recv_stop(uv_udp_t* handle) { |
435 | if (handle->type != UV_UDP) |
436 | return UV_EINVAL; |
437 | else |
438 | return uv__udp_recv_stop(handle); |
439 | } |
440 | |
441 | |
442 | void uv_walk(uv_loop_t* loop, uv_walk_cb walk_cb, void* arg) { |
443 | QUEUE queue; |
444 | QUEUE* q; |
445 | uv_handle_t* h; |
446 | |
447 | QUEUE_MOVE(&loop->handle_queue, &queue); |
448 | while (!QUEUE_EMPTY(&queue)) { |
449 | q = QUEUE_HEAD(&queue); |
450 | h = QUEUE_DATA(q, uv_handle_t, handle_queue); |
451 | |
452 | QUEUE_REMOVE(q); |
453 | QUEUE_INSERT_TAIL(&loop->handle_queue, q); |
454 | |
455 | if (h->flags & UV_HANDLE_INTERNAL) continue; |
456 | walk_cb(h, arg); |
457 | } |
458 | } |
459 | |
460 | |
461 | static void uv__print_handles(uv_loop_t* loop, int only_active, FILE* stream) { |
462 | const char* type; |
463 | QUEUE* q; |
464 | uv_handle_t* h; |
465 | |
466 | if (loop == NULL) |
467 | loop = uv_default_loop(); |
468 | |
469 | QUEUE_FOREACH(q, &loop->handle_queue) { |
470 | h = QUEUE_DATA(q, uv_handle_t, handle_queue); |
471 | |
472 | if (only_active && !uv__is_active(h)) |
473 | continue; |
474 | |
475 | switch (h->type) { |
476 | #define X(uc, lc) case UV_##uc: type = #lc; break; |
477 | UV_HANDLE_TYPE_MAP(X) |
478 | #undef X |
479 | default: type = "<unknown>" ; |
480 | } |
481 | |
482 | fprintf(stream, |
483 | "[%c%c%c] %-8s %p\n" , |
484 | "R-" [!(h->flags & UV_HANDLE_REF)], |
485 | "A-" [!(h->flags & UV_HANDLE_ACTIVE)], |
486 | "I-" [!(h->flags & UV_HANDLE_INTERNAL)], |
487 | type, |
488 | (void*)h); |
489 | } |
490 | } |
491 | |
492 | |
493 | void uv_print_all_handles(uv_loop_t* loop, FILE* stream) { |
494 | uv__print_handles(loop, 0, stream); |
495 | } |
496 | |
497 | |
498 | void uv_print_active_handles(uv_loop_t* loop, FILE* stream) { |
499 | uv__print_handles(loop, 1, stream); |
500 | } |
501 | |
502 | |
503 | void uv_ref(uv_handle_t* handle) { |
504 | uv__handle_ref(handle); |
505 | } |
506 | |
507 | |
508 | void uv_unref(uv_handle_t* handle) { |
509 | uv__handle_unref(handle); |
510 | } |
511 | |
512 | |
513 | int uv_has_ref(const uv_handle_t* handle) { |
514 | return uv__has_ref(handle); |
515 | } |
516 | |
517 | |
518 | void uv_stop(uv_loop_t* loop) { |
519 | loop->stop_flag = 1; |
520 | } |
521 | |
522 | |
523 | uint64_t uv_now(const uv_loop_t* loop) { |
524 | return loop->time; |
525 | } |
526 | |
527 | |
528 | |
529 | size_t uv__count_bufs(const uv_buf_t bufs[], unsigned int nbufs) { |
530 | unsigned int i; |
531 | size_t bytes; |
532 | |
533 | bytes = 0; |
534 | for (i = 0; i < nbufs; i++) |
535 | bytes += (size_t) bufs[i].len; |
536 | |
537 | return bytes; |
538 | } |
539 | |
540 | int uv_recv_buffer_size(uv_handle_t* handle, int* value) { |
541 | return uv__socket_sockopt(handle, SO_RCVBUF, value); |
542 | } |
543 | |
544 | int uv_send_buffer_size(uv_handle_t* handle, int *value) { |
545 | return uv__socket_sockopt(handle, SO_SNDBUF, value); |
546 | } |
547 | |
548 | int uv_fs_event_getpath(uv_fs_event_t* handle, char* buffer, size_t* size) { |
549 | size_t required_len; |
550 | |
551 | if (!uv__is_active(handle)) { |
552 | *size = 0; |
553 | return UV_EINVAL; |
554 | } |
555 | |
556 | required_len = strlen(handle->path); |
557 | if (required_len >= *size) { |
558 | *size = required_len + 1; |
559 | return UV_ENOBUFS; |
560 | } |
561 | |
562 | memcpy(buffer, handle->path, required_len); |
563 | *size = required_len; |
564 | buffer[required_len] = '\0'; |
565 | |
566 | return 0; |
567 | } |
568 | |
569 | /* The windows implementation does not have the same structure layout as |
570 | * the unix implementation (nbufs is not directly inside req but is |
571 | * contained in a nested union/struct) so this function locates it. |
572 | */ |
573 | static unsigned int* uv__get_nbufs(uv_fs_t* req) { |
574 | #ifdef _WIN32 |
575 | return &req->fs.info.nbufs; |
576 | #else |
577 | return &req->nbufs; |
578 | #endif |
579 | } |
580 | |
581 | /* uv_fs_scandir() uses the system allocator to allocate memory on non-Windows |
582 | * systems. So, the memory should be released using free(). On Windows, |
583 | * uv__malloc() is used, so use uv__free() to free memory. |
584 | */ |
585 | #ifdef _WIN32 |
586 | # define uv__fs_scandir_free uv__free |
587 | #else |
588 | # define uv__fs_scandir_free free |
589 | #endif |
590 | |
591 | void uv__fs_scandir_cleanup(uv_fs_t* req) { |
592 | uv__dirent_t** dents; |
593 | |
594 | unsigned int* nbufs = uv__get_nbufs(req); |
595 | |
596 | dents = req->ptr; |
597 | if (*nbufs > 0 && *nbufs != (unsigned int) req->result) |
598 | (*nbufs)--; |
599 | for (; *nbufs < (unsigned int) req->result; (*nbufs)++) |
600 | uv__fs_scandir_free(dents[*nbufs]); |
601 | |
602 | uv__fs_scandir_free(req->ptr); |
603 | req->ptr = NULL; |
604 | } |
605 | |
606 | |
607 | int uv_fs_scandir_next(uv_fs_t* req, uv_dirent_t* ent) { |
608 | uv__dirent_t** dents; |
609 | uv__dirent_t* dent; |
610 | unsigned int* nbufs; |
611 | |
612 | /* Check to see if req passed */ |
613 | if (req->result < 0) |
614 | return req->result; |
615 | |
616 | /* Ptr will be null if req was canceled or no files found */ |
617 | if (!req->ptr) |
618 | return UV_EOF; |
619 | |
620 | nbufs = uv__get_nbufs(req); |
621 | assert(nbufs); |
622 | |
623 | dents = req->ptr; |
624 | |
625 | /* Free previous entity */ |
626 | if (*nbufs > 0) |
627 | uv__fs_scandir_free(dents[*nbufs - 1]); |
628 | |
629 | /* End was already reached */ |
630 | if (*nbufs == (unsigned int) req->result) { |
631 | uv__fs_scandir_free(dents); |
632 | req->ptr = NULL; |
633 | return UV_EOF; |
634 | } |
635 | |
636 | dent = dents[(*nbufs)++]; |
637 | |
638 | ent->name = dent->d_name; |
639 | ent->type = uv__fs_get_dirent_type(dent); |
640 | |
641 | return 0; |
642 | } |
643 | |
644 | uv_dirent_type_t uv__fs_get_dirent_type(uv__dirent_t* dent) { |
645 | uv_dirent_type_t type; |
646 | |
647 | #ifdef HAVE_DIRENT_TYPES |
648 | switch (dent->d_type) { |
649 | case UV__DT_DIR: |
650 | type = UV_DIRENT_DIR; |
651 | break; |
652 | case UV__DT_FILE: |
653 | type = UV_DIRENT_FILE; |
654 | break; |
655 | case UV__DT_LINK: |
656 | type = UV_DIRENT_LINK; |
657 | break; |
658 | case UV__DT_FIFO: |
659 | type = UV_DIRENT_FIFO; |
660 | break; |
661 | case UV__DT_SOCKET: |
662 | type = UV_DIRENT_SOCKET; |
663 | break; |
664 | case UV__DT_CHAR: |
665 | type = UV_DIRENT_CHAR; |
666 | break; |
667 | case UV__DT_BLOCK: |
668 | type = UV_DIRENT_BLOCK; |
669 | break; |
670 | default: |
671 | type = UV_DIRENT_UNKNOWN; |
672 | } |
673 | #else |
674 | type = UV_DIRENT_UNKNOWN; |
675 | #endif |
676 | |
677 | return type; |
678 | } |
679 | |
680 | void uv__fs_readdir_cleanup(uv_fs_t* req) { |
681 | uv_dir_t* dir; |
682 | uv_dirent_t* dirents; |
683 | int i; |
684 | |
685 | if (req->ptr == NULL) |
686 | return; |
687 | |
688 | dir = req->ptr; |
689 | dirents = dir->dirents; |
690 | req->ptr = NULL; |
691 | |
692 | if (dirents == NULL) |
693 | return; |
694 | |
695 | for (i = 0; i < req->result; ++i) { |
696 | uv__free((char*) dirents[i].name); |
697 | dirents[i].name = NULL; |
698 | } |
699 | } |
700 | |
701 | |
702 | int uv_loop_configure(uv_loop_t* loop, uv_loop_option option, ...) { |
703 | va_list ap; |
704 | int err; |
705 | |
706 | va_start(ap, option); |
707 | /* Any platform-agnostic options should be handled here. */ |
708 | err = uv__loop_configure(loop, option, ap); |
709 | va_end(ap); |
710 | |
711 | return err; |
712 | } |
713 | |
714 | |
715 | static uv_loop_t default_loop_struct; |
716 | static uv_loop_t* default_loop_ptr; |
717 | |
718 | |
719 | uv_loop_t* uv_default_loop(void) { |
720 | if (default_loop_ptr != NULL) |
721 | return default_loop_ptr; |
722 | |
723 | if (uv_loop_init(&default_loop_struct)) |
724 | return NULL; |
725 | |
726 | default_loop_ptr = &default_loop_struct; |
727 | return default_loop_ptr; |
728 | } |
729 | |
730 | |
731 | uv_loop_t* uv_loop_new(void) { |
732 | uv_loop_t* loop; |
733 | |
734 | loop = uv__malloc(sizeof(*loop)); |
735 | if (loop == NULL) |
736 | return NULL; |
737 | |
738 | if (uv_loop_init(loop)) { |
739 | uv__free(loop); |
740 | return NULL; |
741 | } |
742 | |
743 | return loop; |
744 | } |
745 | |
746 | |
747 | int uv_loop_close(uv_loop_t* loop) { |
748 | QUEUE* q; |
749 | uv_handle_t* h; |
750 | #ifndef NDEBUG |
751 | void* saved_data; |
752 | #endif |
753 | |
754 | if (uv__has_active_reqs(loop)) |
755 | return UV_EBUSY; |
756 | |
757 | QUEUE_FOREACH(q, &loop->handle_queue) { |
758 | h = QUEUE_DATA(q, uv_handle_t, handle_queue); |
759 | if (!(h->flags & UV_HANDLE_INTERNAL)) |
760 | return UV_EBUSY; |
761 | } |
762 | |
763 | uv__loop_close(loop); |
764 | |
765 | #ifndef NDEBUG |
766 | saved_data = loop->data; |
767 | memset(loop, -1, sizeof(*loop)); |
768 | loop->data = saved_data; |
769 | #endif |
770 | if (loop == default_loop_ptr) |
771 | default_loop_ptr = NULL; |
772 | |
773 | return 0; |
774 | } |
775 | |
776 | |
777 | void uv_loop_delete(uv_loop_t* loop) { |
778 | uv_loop_t* default_loop; |
779 | int err; |
780 | |
781 | default_loop = default_loop_ptr; |
782 | |
783 | err = uv_loop_close(loop); |
784 | (void) err; /* Squelch compiler warnings. */ |
785 | assert(err == 0); |
786 | if (loop != default_loop) |
787 | uv__free(loop); |
788 | } |
789 | |