libwebsockets
Lightweight C library for HTML5 websockets
libwebsockets.h
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1 /*
2  * libwebsockets - small server side websockets and web server implementation
3  *
4  * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to
8  * deal in the Software without restriction, including without limitation the
9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10  * sell copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22  * IN THE SOFTWARE.
23  */
24 
27 #ifndef LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
28 #define LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
29 
30 #ifdef __cplusplus
31 #include <cstddef>
32 #include <cstdarg>
33 
34 extern "C" {
35 #else
36 #include <stdarg.h>
37 #endif
38 
39 #include <string.h>
40 #include <stdlib.h>
41 
42 #include "lws_config.h"
43 
44 #if defined(LWS_SUPPRESS_DEPRECATED_API_WARNINGS)
45 #define OPENSSL_USE_DEPRECATED
46 #endif
47 
48 /* place for one-shot opaque forward references */
49 
50 typedef struct lws_context * lws_ctx_t;
51 struct lws_sequencer;
52 struct lws_dsh;
53 
54 /*
55  * CARE: everything using cmake defines needs to be below here
56  */
57 
58 #define LWS_US_PER_SEC ((lws_usec_t)1000000)
59 #define LWS_MS_PER_SEC ((lws_usec_t)1000)
60 #define LWS_US_PER_MS ((lws_usec_t)1000)
61 #define LWS_NS_PER_US ((lws_usec_t)1000)
62 
63 #define LWS_KI (1024)
64 #define LWS_MI (LWS_KI * 1024)
65 #define LWS_GI (LWS_MI * 1024)
66 #define LWS_TI ((uint64_t)LWS_GI * 1024)
67 #define LWS_PI ((uint64_t)LWS_TI * 1024)
68 
69 #define LWS_US_TO_MS(x) ((x + (LWS_US_PER_MS / 2)) / LWS_US_PER_MS)
70 
71 #if defined(LWS_HAS_INTPTR_T)
72 #include <stdint.h>
73 #define lws_intptr_t intptr_t
74 #else
75 typedef unsigned long long lws_intptr_t;
76 #endif
77 
78 #if defined(WIN32) || defined(_WIN32)
79 #ifndef WIN32_LEAN_AND_MEAN
80 #define WIN32_LEAN_AND_MEAN
81 #endif
82 
83 #include <winsock2.h>
84 #include <ws2tcpip.h>
85 #include <stddef.h>
86 #include <basetsd.h>
87 #include <io.h>
88 #ifndef _WIN32_WCE
89 #include <fcntl.h>
90 #else
91 #define _O_RDONLY 0x0000
92 #define O_RDONLY _O_RDONLY
93 #endif
94 
95 typedef int uid_t;
96 typedef int gid_t;
97 typedef unsigned short sa_family_t;
98 #if !defined(LWS_HAVE_SUSECONDS_T)
99 typedef unsigned int useconds_t;
100 typedef int suseconds_t;
101 #endif
102 
103 #define LWS_INLINE __inline
104 #define LWS_VISIBLE
105 #define LWS_WARN_UNUSED_RESULT
106 #define LWS_WARN_DEPRECATED
107 #define LWS_FORMAT(string_index)
108 
109 #if !defined(LWS_EXTERN) && defined(LWS_BUILDING_SHARED)
110 #ifdef LWS_DLL
111 #ifdef LWS_INTERNAL
112 #define LWS_EXTERN extern __declspec(dllexport)
113 #else
114 #define LWS_EXTERN extern __declspec(dllimport)
115 #endif
116 #endif
117 #endif
118 
119 #if !defined(LWS_INTERNAL) && !defined(LWS_EXTERN)
120 #define LWS_EXTERN
121 #define LWS_VISIBLE
122 #endif
123 
124 #if !defined(LWS_EXTERN)
125 #define LWS_EXTERN
126 #endif
127 
128 #define LWS_INVALID_FILE INVALID_HANDLE_VALUE
129 #define LWS_SOCK_INVALID (INVALID_SOCKET)
130 #define LWS_O_RDONLY _O_RDONLY
131 #define LWS_O_WRONLY _O_WRONLY
132 #define LWS_O_CREAT _O_CREAT
133 #define LWS_O_TRUNC _O_TRUNC
134 
135 #ifndef __func__
136 #define __func__ __FUNCTION__
137 #endif
138 
139 #else /* NOT WIN32 */
140 #include <unistd.h>
141 #if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
142 #include <sys/capability.h>
143 #endif
144 
145 #if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__QNX__) || defined(__OpenBSD__)
146 #include <sys/socket.h>
147 #include <netinet/in.h>
148 #endif
149 
150 #define LWS_INLINE inline
151 #define LWS_O_RDONLY O_RDONLY
152 #define LWS_O_WRONLY O_WRONLY
153 #define LWS_O_CREAT O_CREAT
154 #define LWS_O_TRUNC O_TRUNC
155 
156 #if !defined(LWS_PLAT_OPTEE) && !defined(OPTEE_TA) && !defined(LWS_PLAT_FREERTOS)
157 #include <poll.h>
158 #include <netdb.h>
159 #define LWS_INVALID_FILE -1
160 #define LWS_SOCK_INVALID (-1)
161 #else
162 #define getdtablesize() (30)
163 #if defined(LWS_PLAT_FREERTOS)
164 #define LWS_INVALID_FILE NULL
165 #define LWS_SOCK_INVALID (-1)
166 #else
167 #define LWS_INVALID_FILE NULL
168 #define LWS_SOCK_INVALID (-1)
169 #endif
170 #endif
171 
172 #if defined(__FreeBSD__)
173 #include <sys/signal.h>
174 #endif
175 #if defined(__GNUC__)
176 
177 /* warn_unused_result attribute only supported by GCC 3.4 or later */
178 #if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
179 #define LWS_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
180 #else
181 #define LWS_WARN_UNUSED_RESULT
182 #endif
183 
184 #if defined(LWS_BUILDING_SHARED)
185 /* this is only set when we're building lws itself shared */
186 #define LWS_VISIBLE __attribute__((visibility("default")))
187 #define LWS_EXTERN extern
188 
189 #else /* not shared */
190 #if defined(WIN32) || defined(_WIN32) || defined(__MINGW32__)
191 #define LWS_VISIBLE
192 #define LWS_EXTERN extern
193 #else
194 /*
195  * If we explicitly say hidden here, symbols exist as T but
196  * cannot be imported at link-time.
197  */
198 #define LWS_VISIBLE
199 #define LWS_EXTERN
200 #endif
201 
202 #endif /* not shared */
203 
204 #define LWS_WARN_DEPRECATED __attribute__ ((deprecated))
205 #define LWS_FORMAT(string_index) __attribute__ ((format(printf, string_index, string_index+1)))
206 #else /* not GNUC */
207 
208 #define LWS_VISIBLE
209 #define LWS_WARN_UNUSED_RESULT
210 #define LWS_WARN_DEPRECATED
211 #define LWS_FORMAT(string_index)
212 #if !defined(LWS_EXTERN)
213 #define LWS_EXTERN extern
214 #endif
215 #endif
216 
217 
218 #if defined(__ANDROID__)
219 #include <netinet/in.h>
220 #include <unistd.h>
221 #endif
222 #endif
223 
224 #ifdef _WIN32
225 #define random rand
226 #else
227 #if !defined(LWS_PLAT_OPTEE)
228 #include <sys/time.h>
229 #include <unistd.h>
230 #endif
231 #endif
232 
233 #if defined(LWS_WITH_LIBUV_INTERNAL)
234 #include <uv.h>
235 
236 #ifdef LWS_HAVE_UV_VERSION_H
237 #include <uv-version.h>
238 #endif
239 
240 #ifdef LWS_HAVE_NEW_UV_VERSION_H
241 #include <uv/version.h>
242 #endif
243 #endif
244 
245 #if defined(LWS_WITH_TLS)
246 
247 #ifdef USE_WOLFSSL
248 #ifdef USE_OLD_CYASSL
249 #ifdef _WIN32
250 /*
251  * Include user-controlled settings for windows from
252  * <wolfssl-root>/IDE/WIN/user_settings.h
253  */
254 #include <IDE/WIN/user_settings.h>
255 #include <cyassl/ctaocrypt/settings.h>
256 #else
257 #include <cyassl/options.h>
258 #endif
259 #include <cyassl/openssl/ssl.h>
260 #include <cyassl/error-ssl.h>
261 
262 #else
263 #ifdef _WIN32
264 /*
265  * Include user-controlled settings for windows from
266  * <wolfssl-root>/IDE/WIN/user_settings.h
267  */
268 #include <IDE/WIN/user_settings.h>
269 #include <wolfssl/wolfcrypt/settings.h>
270 #else
271 #include <wolfssl/options.h>
272 #endif
273 #include <wolfssl/openssl/ssl.h>
274 #include <wolfssl/error-ssl.h>
275 #endif /* not USE_OLD_CYASSL */
276 #else
277 #if defined(LWS_WITH_MBEDTLS)
278 #if defined(LWS_PLAT_FREERTOS)
279 /* this filepath is passed to us but without quotes or <> */
280 #if !defined(LWS_AMAZON_RTOS)
281 /* AMAZON RTOS has its own setting via MTK_MBEDTLS_CONFIG_FILE */
282 #undef MBEDTLS_CONFIG_FILE
283 #define MBEDTLS_CONFIG_FILE <mbedtls/esp_config.h>
284 #endif
285 #endif
286 #if defined(LWS_WITH_TLS)
287 #include <mbedtls/ssl.h>
288 #include <mbedtls/entropy.h>
289 #include <mbedtls/ctr_drbg.h>
290 
291 #if !defined(MBEDTLS_PRIVATE)
292 #define MBEDTLS_PRIVATE(_q) _q
293 #endif
294 
295 #endif
296 #else
297 #include <openssl/ssl.h>
298 #if !defined(LWS_WITH_MBEDTLS)
299 #include <openssl/err.h>
300 #endif
301 #endif
302 #endif /* not USE_WOLFSSL */
303 #endif
304 
305 /*
306  * Helpers for pthread mutex in user code... if lws is built for
307  * multiple service threads, these resolve to pthread mutex
308  * operations. In the case LWS_MAX_SMP is 1 (the default), they
309  * are all NOPs and no pthread type or api is referenced.
310  */
311 
312 #if LWS_MAX_SMP > 1
313 
314 #include <pthread.h>
315 
316 #define lws_pthread_mutex(name) pthread_mutex_t name;
317 
318 static LWS_INLINE void
319 lws_pthread_mutex_init(pthread_mutex_t *lock)
320 {
321  pthread_mutex_init(lock, NULL);
322 }
323 
324 static LWS_INLINE void
325 lws_pthread_mutex_destroy(pthread_mutex_t *lock)
326 {
327  pthread_mutex_destroy(lock);
328 }
329 
330 static LWS_INLINE void
331 lws_pthread_mutex_lock(pthread_mutex_t *lock)
332 {
333  pthread_mutex_lock(lock);
334 }
335 
336 static LWS_INLINE void
337 lws_pthread_mutex_unlock(pthread_mutex_t *lock)
338 {
339  pthread_mutex_unlock(lock);
340 }
341 
342 #else
343 #define lws_pthread_mutex(name)
344 #define lws_pthread_mutex_init(_a)
345 #define lws_pthread_mutex_destroy(_a)
346 #define lws_pthread_mutex_lock(_a)
347 #define lws_pthread_mutex_unlock(_a)
348 #endif
349 
350 
351 #define CONTEXT_PORT_NO_LISTEN -1
352 #define CONTEXT_PORT_NO_LISTEN_SERVER -2
353 
354 #include <libwebsockets/lws-logs.h>
355 
356 
357 #include <stddef.h>
358 
359 #ifndef lws_container_of
360 #define lws_container_of(P,T,M) ((T *)((char *)(P) - offsetof(T, M)))
361 #endif
362 #define LWS_ALIGN_TO(x, bou) x += ((bou) - ((x) % (bou))) % (bou)
363 
364 struct lws;
365 
366 /* api change list for user code to test against */
367 
368 #define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_ARG
369 
370 /* the struct lws_protocols has the id field present */
371 #define LWS_FEATURE_PROTOCOLS_HAS_ID_FIELD
372 
373 /* you can call lws_get_peer_write_allowance */
374 #define LWS_FEATURE_PROTOCOLS_HAS_PEER_WRITE_ALLOWANCE
375 
376 /* extra parameter introduced in 917f43ab821 */
377 #define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_LEN
378 
379 /* File operations stuff exists */
380 #define LWS_FEATURE_FOPS
381 
382 
383 #if defined(_WIN32)
384 #if !defined(LWS_WIN32_HANDLE_TYPES)
385 typedef SOCKET lws_sockfd_type;
386 typedef HANDLE lws_filefd_type;
387 #endif
388 
389 
390 #define lws_pollfd pollfd
391 #define LWS_POLLHUP (POLLHUP)
392 #define LWS_POLLIN (POLLRDNORM | POLLRDBAND)
393 #define LWS_POLLOUT (POLLWRNORM)
394 
395 #else
396 
397 
398 #if defined(LWS_PLAT_FREERTOS)
399 #include <libwebsockets/lws-freertos.h>
400 #else
401 typedef int lws_sockfd_type;
402 typedef int lws_filefd_type;
403 #endif
404 
405 #if defined(LWS_PLAT_OPTEE)
406 #include <time.h>
407 struct timeval {
408  time_t tv_sec;
409  unsigned int tv_usec;
410 };
411 #if defined(LWS_WITH_NETWORK)
412 // #include <poll.h>
413 #define lws_pollfd pollfd
414 
415 struct timezone;
416 
417 int gettimeofday(struct timeval *tv, struct timezone *tz);
418 
419  /* Internet address. */
420  struct in_addr {
421  uint32_t s_addr; /* address in network byte order */
422  };
423 
424 typedef unsigned short sa_family_t;
425 typedef unsigned short in_port_t;
426 typedef uint32_t socklen_t;
427 
428 #include <libwebsockets/lws-optee.h>
429 
430 #if !defined(TEE_SE_READER_NAME_MAX)
431  struct addrinfo {
432  int ai_flags;
433  int ai_family;
434  int ai_socktype;
435  int ai_protocol;
436  socklen_t ai_addrlen;
437  struct sockaddr *ai_addr;
438  char *ai_canonname;
439  struct addrinfo *ai_next;
440  };
441 #endif
442 
443 ssize_t recv(int sockfd, void *buf, size_t len, int flags);
444 ssize_t send(int sockfd, const void *buf, size_t len, int flags);
445 ssize_t read(int fd, void *buf, size_t count);
446 int getsockopt(int sockfd, int level, int optname,
447  void *optval, socklen_t *optlen);
448  int setsockopt(int sockfd, int level, int optname,
449  const void *optval, socklen_t optlen);
450 int connect(int sockfd, const struct sockaddr *addr,
451  socklen_t addrlen);
452 
453 extern int errno;
454 
455 uint16_t ntohs(uint16_t netshort);
456 uint16_t htons(uint16_t hostshort);
457 
458 int bind(int sockfd, const struct sockaddr *addr,
459  socklen_t addrlen);
460 
461 
462 #define MSG_NOSIGNAL 0x4000
463 #define EAGAIN 11
464 #define EINTR 4
465 #define EWOULDBLOCK EAGAIN
466 #define EADDRINUSE 98
467 #define INADDR_ANY 0
468 #define AF_INET 2
469 #define SHUT_WR 1
470 #define AF_UNSPEC 0
471 #define PF_UNSPEC 0
472 #define SOCK_STREAM 1
473 #define SOCK_DGRAM 2
474 # define AI_PASSIVE 0x0001
475 #define IPPROTO_UDP 17
476 #define SOL_SOCKET 1
477 #define SO_SNDBUF 7
478 #define EISCONN 106
479 #define EALREADY 114
480 #define EINPROGRESS 115
481 int shutdown(int sockfd, int how);
482 int close(int fd);
483 int atoi(const char *nptr);
484 long long atoll(const char *nptr);
485 
486 int socket(int domain, int type, int protocol);
487  int getaddrinfo(const char *node, const char *service,
488  const struct addrinfo *hints,
489  struct addrinfo **res);
490 
491  void freeaddrinfo(struct addrinfo *res);
492 
493 #if !defined(TEE_SE_READER_NAME_MAX)
494 struct lws_pollfd
495 {
496  int fd; /* File descriptor to poll. */
497  short int events; /* Types of events poller cares about. */
498  short int revents; /* Types of events that actually occurred. */
499 };
500 #endif
501 
502 int poll(struct pollfd *fds, int nfds, int timeout);
503 
504 #define LWS_POLLHUP (0x18)
505 #define LWS_POLLIN (1)
506 #define LWS_POLLOUT (4)
507 #else
508 struct lws_pollfd;
509 struct sockaddr_in;
510 #endif
511 #else
512 #define lws_pollfd pollfd
513 #define LWS_POLLHUP (POLLHUP | POLLERR)
514 #define LWS_POLLIN (POLLIN)
515 #define LWS_POLLOUT (POLLOUT)
516 #endif
517 #endif
518 
519 
520 #if (defined(WIN32) || defined(_WIN32)) && !defined(__MINGW32__)
521 /* ... */
522 #define ssize_t SSIZE_T
523 #endif
524 
525 #if defined(WIN32) && defined(LWS_HAVE__STAT32I64)
526 #include <sys/types.h>
527 #include <sys/stat.h>
528 #endif
529 
530 #if defined(LWS_HAVE_STDINT_H)
531 #include <stdint.h>
532 #else
533 #if defined(WIN32) || defined(_WIN32)
534 /* !!! >:-[ */
535 typedef __int64 int64_t;
536 typedef unsigned __int64 uint64_t;
537 typedef __int32 int32_t;
538 typedef unsigned __int32 uint32_t;
539 typedef __int16 int16_t;
540 typedef unsigned __int16 uint16_t;
541 typedef unsigned __int8 uint8_t;
542 #else
543 typedef unsigned int uint32_t;
544 typedef unsigned short uint16_t;
545 typedef unsigned char uint8_t;
546 #endif
547 #endif
548 
549 typedef int64_t lws_usec_t;
550 typedef unsigned long long lws_filepos_t;
551 typedef long long lws_fileofs_t;
552 typedef uint32_t lws_fop_flags_t;
553 
554 #define lws_concat_temp(_t, _l) (_t + sizeof(_t) - _l)
555 #define lws_concat_used(_t, _l) (sizeof(_t) - _l)
556 
559 struct lws_pollargs {
560  lws_sockfd_type fd;
561  int events;
563 };
564 
565 struct lws_extension; /* needed even with ws exts disabled for create context */
566 struct lws_token_limits;
567 struct lws_protocols;
568 struct lws_context;
569 struct lws_tokens;
570 struct lws_vhost;
571 struct lws;
572 
573 #include <libwebsockets/lws-dll2.h>
574 #include <libwebsockets/lws-map.h>
575 
576 #include <libwebsockets/lws-fault-injection.h>
577 #include <libwebsockets/lws-timeout-timer.h>
578 #include <libwebsockets/lws-cache-ttl.h>
579 #if defined(LWS_WITH_SYS_SMD)
580 #include <libwebsockets/lws-smd.h>
581 #endif
582 #include <libwebsockets/lws-state.h>
583 #include <libwebsockets/lws-retry.h>
584 #include <libwebsockets/lws-adopt.h>
585 #include <libwebsockets/lws-network-helper.h>
586 #include <libwebsockets/lws-metrics.h>
587 #include <libwebsockets/lws-system.h>
588 #include <libwebsockets/lws-ws-close.h>
589 #include <libwebsockets/lws-callbacks.h>
590 #include <libwebsockets/lws-ws-state.h>
591 #include <libwebsockets/lws-ws-ext.h>
592 #include <libwebsockets/lws-protocols-plugins.h>
593 
594 #include <libwebsockets/lws-context-vhost.h>
595 
596 #if defined(LWS_WITH_CONMON)
597 #include <libwebsockets/lws-conmon.h>
598 #endif
599 
600 #if defined(LWS_ROLE_MQTT)
601 #include <libwebsockets/lws-mqtt.h>
602 #endif
603 #include <libwebsockets/lws-client.h>
604 #include <libwebsockets/lws-http.h>
605 #include <libwebsockets/lws-spa.h>
606 #include <libwebsockets/lws-purify.h>
607 #include <libwebsockets/lws-misc.h>
608 #include <libwebsockets/lws-dsh.h>
609 #include <libwebsockets/lws-service.h>
610 #include <libwebsockets/lws-write.h>
611 #include <libwebsockets/lws-writeable.h>
612 #include <libwebsockets/lws-ring.h>
613 #include <libwebsockets/lws-sha1-base64.h>
614 #include <libwebsockets/lws-x509.h>
615 #include <libwebsockets/lws-cgi.h>
616 #if defined(LWS_WITH_FILE_OPS)
617 #include <libwebsockets/lws-vfs.h>
618 #endif
619 #include <libwebsockets/lws-gencrypto.h>
620 
621 #include <libwebsockets/lws-lejp.h>
622 #include <libwebsockets/lws-lecp.h>
623 #include <libwebsockets/lws-cose.h>
624 #include <libwebsockets/lws-struct.h>
625 #include <libwebsockets/lws-threadpool.h>
626 #include <libwebsockets/lws-tokenize.h>
627 #include <libwebsockets/lws-lwsac.h>
628 #include <libwebsockets/lws-fts.h>
629 #include <libwebsockets/lws-diskcache.h>
630 #include <libwebsockets/lws-sequencer.h>
631 #include <libwebsockets/lws-secure-streams.h>
632 #include <libwebsockets/lws-secure-streams-policy.h>
633 #include <libwebsockets/lws-secure-streams-client.h>
634 
635 #if !defined(LWS_PLAT_FREERTOS)
636 #include <libwebsockets/abstract/abstract.h>
637 
638 #include <libwebsockets/lws-test-sequencer.h>
639 #endif
640 #include <libwebsockets/lws-async-dns.h>
641 
642 #if defined(LWS_WITH_TLS)
643 
644 #include <libwebsockets/lws-tls-sessions.h>
645 
646 #if defined(LWS_WITH_MBEDTLS)
647 #include <mbedtls/md5.h>
648 #include <mbedtls/sha1.h>
649 #include <mbedtls/sha256.h>
650 #include <mbedtls/sha512.h>
651 #endif
652 
653 #include <libwebsockets/lws-genhash.h>
654 #include <libwebsockets/lws-genrsa.h>
655 #include <libwebsockets/lws-genaes.h>
656 #include <libwebsockets/lws-genec.h>
657 
658 #include <libwebsockets/lws-jwk.h>
659 #include <libwebsockets/lws-jose.h>
660 #include <libwebsockets/lws-jws.h>
661 #include <libwebsockets/lws-jwe.h>
662 
663 #endif
664 
665 #include <libwebsockets/lws-eventlib-exports.h>
666 #include <libwebsockets/lws-i2c.h>
667 #include <libwebsockets/lws-spi.h>
668 #include <libwebsockets/lws-gpio.h>
669 #include <libwebsockets/lws-bb-i2c.h>
670 #include <libwebsockets/lws-bb-spi.h>
671 #include <libwebsockets/lws-button.h>
672 #include <libwebsockets/lws-led.h>
673 #include <libwebsockets/lws-pwm.h>
674 #include <libwebsockets/lws-display.h>
675 #include <libwebsockets/lws-ssd1306-i2c.h>
676 #include <libwebsockets/lws-ili9341-spi.h>
677 #include <libwebsockets/lws-settings.h>
678 #include <libwebsockets/lws-netdev.h>
679 
680 #ifdef __cplusplus
681 }
682 #endif
683 
684 #endif
Definition: lws-ws-ext.h:139
Definition: libwebsockets.h:559
int events
Definition: libwebsockets.h:561
int prev_events
Definition: libwebsockets.h:562
lws_sockfd_type fd
Definition: libwebsockets.h:560
Definition: lws-protocols-plugins.h:44
Definition: lws-http.h:369
Definition: lws-http.h:204