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annotate src/c/request.c @ 1955:469e02eea43a

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MySQL: Combine transaction setup commands into one mysql_query()
author Adam Chlipala <adam@chlipala.net>
date Tue, 07 Jan 2014 08:36:18 -0500
parents d02c1a0d8082
children c93fbd139732
rev   line source
adamc@1268 1 #include "config.h"
adamc@1268 2
adamc@853 3 #include <stdio.h>
adamc@853 4 #include <string.h>
adamc@853 5 #include <stdlib.h>
adamc@853 6 #include <sys/types.h>
adamc@853 7 #include <sys/socket.h>
adamc@853 8 #include <netinet/in.h>
adamc@853 9 #include <unistd.h>
adamc@853 10 #include <signal.h>
adamc@853 11
adamc@853 12 #include <pthread.h>
adamc@853 13
adamc@853 14 #include "urweb.h"
adamc@853 15
adamc@853 16 #define MAX_RETRIES 5
adamc@853 17
adamc@1152 18 void *memmem(const void *b1, size_t len1, const void *b2, size_t len2);
adamc@1152 19
adam@1327 20 static int try_rollback(uw_context ctx, int will_retry, void *logger_data, uw_logger log_error) {
adam@1327 21 int r = uw_rollback(ctx, will_retry);
adamc@853 22
adamc@853 23 if (r) {
adamc@856 24 log_error(logger_data, "Error running SQL ROLLBACK\n");
adamc@853 25 uw_reset(ctx);
adamc@1115 26 uw_write(ctx, "HTTP/1.1 500 Internal Server Error\r\n");
adamc@853 27 uw_write(ctx, "Content-type: text/plain\r\n\r\n");
adamc@853 28 uw_write(ctx, "Error running SQL ROLLBACK\n");
adamc@1115 29 uw_set_error_message(ctx, "Database error; you are probably out of storage space.");
adamc@853 30 }
adamc@853 31
adamc@853 32 return r;
adamc@853 33 }
adamc@853 34
adam@1446 35 uw_context uw_request_new_context(int id, uw_app *app, void *logger_data, uw_logger log_error, uw_logger log_debug) {
adam@1446 36 uw_context ctx = uw_init(id, logger_data, log_debug);
adamc@853 37 int retries_left = MAX_RETRIES;
adamc@1094 38 uw_set_app(ctx, app);
adamc@853 39
adamc@853 40 while (1) {
adamc@853 41 failure_kind fk = uw_begin_init(ctx);
adamc@853 42
adamc@853 43 if (fk == SUCCESS) {
adamc@856 44 log_debug(logger_data, "Database connection initialized.\n");
adamc@853 45 break;
adamc@853 46 } else if (fk == BOUNDED_RETRY) {
adamc@853 47 if (retries_left) {
adamc@856 48 log_debug(logger_data, "Initialization error triggers bounded retry: %s\n", uw_error_message(ctx));
adamc@853 49 --retries_left;
adamc@853 50 } else {
adamc@856 51 log_error(logger_data, "Fatal initialization error (out of retries): %s\n", uw_error_message(ctx));
adamc@853 52 uw_free(ctx);
adamc@853 53 return NULL;
adamc@853 54 }
adamc@853 55 } else if (fk == UNLIMITED_RETRY)
adamc@856 56 log_debug(logger_data, "Initialization error triggers unlimited retry: %s\n", uw_error_message(ctx));
adamc@853 57 else if (fk == FATAL) {
adamc@856 58 log_error(logger_data, "Fatal initialization error: %s\n", uw_error_message(ctx));
adamc@853 59 uw_free(ctx);
adamc@853 60 return NULL;
adamc@853 61 } else {
adamc@856 62 log_error(logger_data, "Unknown uw_begin_init return code!\n");
adamc@853 63 uw_free(ctx);
adamc@853 64 return NULL;
adamc@853 65 }
adamc@853 66 }
adamc@853 67
adamc@853 68 return ctx;
adamc@853 69 }
adamc@853 70
adam@1308 71 static void *ticker(void *data) {
adam@1308 72 while (1) {
adam@1308 73 usleep(100000);
adam@1308 74 ++uw_time;
adam@1308 75 }
adam@1308 76
adam@1308 77 return NULL;
adam@1308 78 }
adam@1308 79
adam@1349 80 typedef struct {
adam@1349 81 uw_app *app;
adam@1349 82 void *logger_data;
adam@1349 83 uw_logger log_error, log_debug;
adam@1349 84 } loggers;
adam@1349 85
adam@1349 86 typedef struct {
adam@1446 87 int id;
adam@1349 88 loggers *ls;
adam@1349 89 uw_periodic pdic;
adam@1349 90 } periodic;
adam@1349 91
adam@1349 92 static void *periodic_loop(void *data) {
adam@1349 93 periodic *p = (periodic *)data;
adam@1446 94 uw_context ctx = uw_request_new_context(p->id, p->ls->app, p->ls->logger_data, p->ls->log_error, p->ls->log_debug);
adam@1349 95
adam@1349 96 if (!ctx)
adam@1349 97 exit(1);
adam@1349 98
adam@1349 99 while (1) {
adam@1418 100 int retries_left = MAX_RETRIES;
adam@1418 101
adam@1349 102 failure_kind r;
adam@1349 103 do {
adam@1418 104 uw_reset(ctx);
adam@1349 105 r = uw_runCallback(ctx, p->pdic.callback);
adam@1418 106 if (r == BOUNDED_RETRY)
adam@1418 107 --retries_left;
adam@1418 108 else if (r == UNLIMITED_RETRY)
adam@1418 109 p->ls->log_debug(p->ls->logger_data, "Error triggers unlimited retry in periodic: %s\n", uw_error_message(ctx));
adam@1418 110 else if (r == BOUNDED_RETRY)
adam@1418 111 p->ls->log_debug(p->ls->logger_data, "Error triggers bounded retry in periodic: %s\n", uw_error_message(ctx));
adam@1418 112 else if (r == FATAL)
adam@1418 113 p->ls->log_error(p->ls->logger_data, "Fatal error: %s\n", uw_error_message(ctx));
adam@1418 114 if (r == FATAL || r == BOUNDED_RETRY || r == UNLIMITED_RETRY)
adam@1437 115 if (try_rollback(ctx, 0, p->ls->logger_data, p->ls->log_error))
adam@1437 116 return NULL;
adam@1418 117 } while (r == UNLIMITED_RETRY || (r == BOUNDED_RETRY && retries_left > 0));
adam@1418 118
adam@1938 119 if (r != FATAL && r != BOUNDED_RETRY) {
adam@1938 120 if (uw_commit(ctx))
adam@1938 121 r = UNLIMITED_RETRY;
adam@1938 122 }
adam@1349 123
adam@1349 124 sleep(p->pdic.period);
adam@1349 125 };
adam@1349 126 }
adam@1349 127
adam@1522 128 static unsigned long long stackSize;
adam@1522 129
adam@1522 130 int pthread_create_big(pthread_t *outThread, void *foo, void *threadFunc, void *arg)
adam@1522 131 {
adam@1882 132 if (stackSize > 0) {
adam@1882 133 int err;
adam@1882 134 pthread_attr_t stackSizeAttribute;
adam@1522 135
adam@1882 136 err = pthread_attr_init(&stackSizeAttribute);
adam@1882 137 if (err) return err;
adam@1522 138
adam@1522 139 err = pthread_attr_setstacksize(&stackSizeAttribute, stackSize);
adam@1522 140 if (err) return err;
adam@1882 141
adam@1882 142 return pthread_create(outThread, &stackSizeAttribute, threadFunc, arg);
adam@1882 143 } else {
adam@1882 144 return pthread_create(outThread, NULL, threadFunc, arg);
adam@1522 145 }
adam@1522 146 }
adam@1522 147
adamc@1094 148 void uw_request_init(uw_app *app, void *logger_data, uw_logger log_error, uw_logger log_debug) {
adamc@853 149 uw_context ctx;
adamc@853 150 failure_kind fk;
adam@1349 151 uw_periodic *ps;
adam@1349 152 loggers *ls = malloc(sizeof(loggers));
adam@1446 153 int id;
adam@1522 154 char *stackSize_s;
adam@1522 155
adam@1522 156 if ((stackSize_s = getenv("URWEB_STACK_SIZE")) != NULL && stackSize_s[0] != 0) {
adam@1522 157 stackSize = atoll(stackSize_s);
adam@1522 158
adam@1522 159 if (stackSize <= 0) {
adam@1522 160 fprintf(stderr, "Invalid stack size \"%s\"\n", stackSize_s);
adam@1522 161 exit(1);
adam@1522 162 }
adam@1522 163 }
adam@1349 164
adam@1349 165 ls->app = app;
adam@1349 166 ls->logger_data = logger_data;
adam@1349 167 ls->log_error = log_error;
adam@1349 168 ls->log_debug = log_debug;
adamc@853 169
adamc@853 170 uw_global_init();
adamc@1094 171 uw_app_init(app);
adamc@853 172
adam@1308 173 {
adam@1308 174 pthread_t thread;
adam@1308 175
adam@1522 176 if (uw_time_max && pthread_create_big(&thread, NULL, ticker, NULL)) {
adam@1308 177 fprintf(stderr, "Error creating ticker thread\n");
adam@1308 178 exit(1);
adam@1308 179 }
adam@1308 180 }
adam@1308 181
adam@1446 182 ctx = uw_request_new_context(0, app, logger_data, log_error, log_debug);
adamc@853 183
adamc@853 184 if (!ctx)
adamc@853 185 exit(1);
adamc@853 186
adamc@853 187 for (fk = uw_initialize(ctx); fk == UNLIMITED_RETRY; fk = uw_initialize(ctx)) {
adamc@856 188 log_debug(logger_data, "Unlimited retry during init: %s\n", uw_error_message(ctx));
adam@1327 189 uw_rollback(ctx, 1);
adamc@853 190 uw_reset(ctx);
adamc@853 191 }
adamc@853 192
adamc@853 193 if (fk != SUCCESS) {
adamc@856 194 log_error(logger_data, "Failed to initialize database! %s\n", uw_error_message(ctx));
adam@1327 195 uw_rollback(ctx, 0);
adamc@853 196 exit(1);
adamc@853 197 }
adamc@853 198
adamc@853 199 uw_free(ctx);
adam@1349 200
adam@1446 201 id = 1;
adam@1349 202 for (ps = app->periodics; ps->callback; ++ps) {
adam@1349 203 pthread_t thread;
adam@1349 204 periodic *arg = malloc(sizeof(periodic));
adam@1446 205 arg->id = id++;
adam@1349 206 arg->ls = ls;
adam@1349 207 arg->pdic = *ps;
adam@1349 208
adam@1522 209 if (pthread_create_big(&thread, NULL, periodic_loop, arg)) {
adam@1349 210 fprintf(stderr, "Error creating periodic thread\n");
adam@1349 211 exit(1);
adam@1349 212 }
adam@1349 213 }
adamc@853 214 }
adamc@853 215
adamc@853 216
adamc@853 217 typedef struct uw_rc {
adam@1370 218 size_t path_copy_size, queryString_size;
adam@1370 219 char *path_copy, *queryString;
adamc@853 220 } *uw_request_context;
adamc@853 221
adamc@853 222 uw_request_context uw_new_request_context(void) {
adamc@853 223 uw_request_context r = malloc(sizeof(struct uw_rc));
adam@1371 224 r->path_copy_size = 0;
adam@1371 225 r->queryString_size = 1;
adamc@853 226 r->path_copy = malloc(0);
adam@1371 227 r->queryString = malloc(1);
adamc@853 228 return r;
adamc@853 229 }
adamc@853 230
adamc@853 231 void uw_free_request_context(uw_request_context r) {
adamc@853 232 free(r->path_copy);
adam@1370 233 free(r->queryString);
adamc@853 234 free(r);
adamc@853 235 }
adamc@853 236
adamc@854 237 request_result uw_request(uw_request_context rc, uw_context ctx,
adamc@854 238 char *method, char *path, char *query_string,
adamc@854 239 char *body, size_t body_len,
adamc@856 240 void (*on_success)(uw_context), void (*on_failure)(uw_context),
adamc@856 241 void *logger_data, uw_logger log_error, uw_logger log_debug,
adamc@863 242 int sock,
adamc@863 243 int (*send)(int sockfd, const void *buf, size_t len),
adamc@863 244 int (*close)(int fd)) {
adamc@853 245 int retries_left = MAX_RETRIES;
adamc@853 246 failure_kind fk;
adamc@1134 247 int is_post = 0;
adamc@853 248 char *boundary = NULL;
adamc@1134 249 size_t boundary_len = 0;
adamc@854 250 char *inputs;
adamc@1094 251 const char *prefix = uw_get_url_prefix(ctx);
adamc@1169 252 char *s;
adam@1788 253 int had_error = 0, is_fancy = 0;
adam@1294 254 char errmsg[ERROR_BUF_LEN];
adamc@1169 255
adam@1417 256 uw_reset(ctx);
adam@1446 257
adam@1371 258 rc->queryString[0] = 0;
adam@1371 259
adamc@1169 260 for (s = path; *s; ++s) {
adamc@1169 261 if (s[0] == '%' && s[1] == '2' && s[2] == '7') {
adamc@1169 262 s[0] = '\'';
adamc@1169 263 memmove(s+1, s+3, strlen(s+3)+1);
adamc@1169 264 }
adamc@1169 265 }
adamc@853 266
adamc@1066 267 uw_set_currentUrl(ctx, path);
adamc@1066 268
adamc@854 269 if (!strcmp(method, "POST")) {
adamc@853 270 char *clen_s = uw_Basis_requestHeader(ctx, "Content-length");
adamc@853 271 if (!clen_s) {
adamc@1037 272 clen_s = "0";
adamc@1037 273 /*log_error(logger_data, "No Content-length with POST\n");
adamc@1037 274 return FAILED;*/
adamc@853 275 }
adamc@853 276 int clen = atoi(clen_s);
adamc@853 277 if (clen < 0) {
adamc@856 278 log_error(logger_data, "Negative Content-length with POST\n");
adamc@853 279 return FAILED;
adamc@853 280 }
adamc@853 281
adamc@854 282 if (body_len < clen) {
adamc@856 283 log_error(logger_data, "Request doesn't contain all POST data (according to Content-Length)\n");
adamc@853 284 return FAILED;
adamc@853 285 }
adamc@853 286
adamc@853 287 is_post = 1;
adam@1386 288 uw_isPost(ctx);
adamc@853 289
adamc@853 290 clen_s = uw_Basis_requestHeader(ctx, "Content-type");
adam@1788 291
adam@1788 292 if (!clen_s || strcasecmp(clen_s, "application/x-www-form-urlencoded"))
adam@1788 293 is_fancy = 1;
adam@1788 294
adamc@853 295 if (clen_s && !strncasecmp(clen_s, "multipart/form-data", 19)) {
adamc@853 296 if (strncasecmp(clen_s + 19, "; boundary=", 11)) {
adamc@856 297 log_error(logger_data, "Bad multipart boundary spec");
adamc@853 298 return FAILED;
adamc@853 299 }
adamc@853 300
adamc@853 301 boundary = clen_s + 28;
adamc@853 302 boundary[0] = '-';
adamc@853 303 boundary[1] = '-';
adamc@853 304 boundary_len = strlen(boundary);
adam@1787 305 } else if (clen_s) {
adam@1788 306 uw_Basis_postBody pb = {clen_s, body, body_len};
adam@1347 307 uw_postBody(ctx, pb);
adamc@853 308 }
adamc@854 309 } else if (strcmp(method, "GET")) {
adamc@856 310 log_error(logger_data, "Not ready for non-GET/POST command: %s\n", method);
adamc@853 311 return FAILED;
adamc@853 312 }
adamc@853 313
adamc@1094 314 if (!strncmp(path, prefix, strlen(prefix))
adamc@1094 315 && !strcmp(path + strlen(prefix), ".msgs")) {
adamc@853 316 char *id = uw_Basis_requestHeader(ctx, "UrWeb-Client");
adamc@853 317 char *pass = uw_Basis_requestHeader(ctx, "UrWeb-Pass");
adamc@853 318
adamc@853 319 if (sock < 0) {
adamc@856 320 log_error(logger_data, ".msgs requested, but not socket supplied\n");
adamc@853 321 return FAILED;
adamc@853 322 }
adamc@853 323
adamc@853 324 if (id && pass) {
adamc@853 325 unsigned idn = atoi(id);
adamc@864 326 uw_client_connect(idn, atoi(pass), sock, send, close, logger_data, log_error);
adam@1320 327 log_debug(logger_data, "Processed request for messages by client %u\n\n", idn);
adamc@853 328 return KEEP_OPEN;
adamc@853 329 }
adamc@853 330 else {
adamc@856 331 log_error(logger_data, "Missing fields in .msgs request: %s, %s\n\n", id, pass);
adamc@853 332 return FAILED;
adamc@853 333 }
adamc@853 334 }
adamc@853 335
adamc@853 336 if (boundary) {
adamc@854 337 char *part = body, *after_sub_headers, *header, *after_header;
adamc@853 338 size_t part_len;
adamc@853 339
adamc@853 340 part = strstr(part, boundary);
adamc@853 341 if (!part) {
adamc@856 342 log_error(logger_data, "Missing first multipart boundary\n");
adamc@853 343 return FAILED;
adamc@853 344 }
adamc@853 345 part += boundary_len;
adamc@853 346
adamc@853 347 while (1) {
adamc@853 348 char *name = NULL, *filename = NULL, *type = NULL;
adamc@853 349
adamc@853 350 if (part[0] == '-' && part[1] == '-')
adamc@853 351 break;
adamc@853 352
adamc@853 353 if (*part != '\r') {
adamc@856 354 log_error(logger_data, "No \\r after multipart boundary\n");
adamc@853 355 return FAILED;
adamc@853 356 }
adamc@853 357 ++part;
adamc@853 358 if (*part != '\n') {
adamc@856 359 log_error(logger_data, "No \\n after multipart boundary\n");
adamc@853 360 return FAILED;
adamc@853 361 }
adamc@853 362 ++part;
adamc@853 363
adamc@853 364 if (!(after_sub_headers = strstr(part, "\r\n\r\n"))) {
adamc@856 365 log_error(logger_data, "Missing end of headers after multipart boundary\n");
adamc@853 366 return FAILED;
adamc@853 367 }
adamc@853 368 after_sub_headers[2] = 0;
adamc@853 369 after_sub_headers += 4;
adamc@853 370
adamc@1134 371 for (header = part; (after_header = strstr(header, "\r\n")); header = after_header + 2) {
adamc@853 372 char *colon, *after_colon;
adamc@853 373
adamc@853 374 *after_header = 0;
adamc@853 375 if (!(colon = strchr(header, ':'))) {
adamc@856 376 log_error(logger_data, "Missing colon in multipart sub-header\n");
adamc@853 377 return FAILED;
adamc@853 378 }
adamc@853 379 *colon++ = 0;
adamc@853 380 if (*colon++ != ' ') {
adamc@856 381 log_error(logger_data, "No space after colon in multipart sub-header\n");
adamc@853 382 return FAILED;
adamc@853 383 }
adamc@853 384
adamc@853 385 if (!strcasecmp(header, "Content-Disposition")) {
adamc@853 386 if (strncmp(colon, "form-data; ", 11)) {
adamc@856 387 log_error(logger_data, "Multipart data is not \"form-data\"\n");
adamc@853 388 return FAILED;
adamc@853 389 }
adamc@853 390
adamc@1134 391 for (colon += 11; (after_colon = strchr(colon, '=')); colon = after_colon) {
adamc@853 392 char *data;
adamc@853 393 after_colon[0] = 0;
adamc@853 394 if (after_colon[1] != '"') {
adamc@856 395 log_error(logger_data, "Disposition setting is missing initial quote\n");
adamc@853 396 return FAILED;
adamc@853 397 }
adamc@853 398 data = after_colon+2;
adamc@853 399 if (!(after_colon = strchr(data, '"'))) {
adamc@856 400 log_error(logger_data, "Disposition setting is missing final quote\n");
adamc@853 401 return FAILED;
adamc@853 402 }
adamc@853 403 after_colon[0] = 0;
adamc@853 404 ++after_colon;
adamc@853 405 if (after_colon[0] == ';' && after_colon[1] == ' ')
adamc@853 406 after_colon += 2;
adamc@853 407
adamc@853 408 if (!strcasecmp(colon, "name"))
adamc@853 409 name = data;
adamc@853 410 else if (!strcasecmp(colon, "filename"))
adamc@853 411 filename = data;
adamc@853 412 }
adamc@853 413 } else if (!strcasecmp(header, "Content-Type")) {
adamc@853 414 type = colon;
adamc@853 415 }
adamc@853 416 }
adamc@853 417
adamc@854 418 part = memmem(after_sub_headers, body + body_len - after_sub_headers, boundary, boundary_len);
adamc@853 419 if (!part) {
adamc@856 420 log_error(logger_data, "Missing boundary after multipart payload\n");
adamc@853 421 return FAILED;
adamc@853 422 }
adamc@853 423 part[-2] = 0;
adamc@853 424 part_len = part - after_sub_headers - 2;
adamc@853 425 part[0] = 0;
adamc@853 426 part += boundary_len;
adamc@853 427
adamc@853 428 if (filename) {
adamc@853 429 uw_Basis_file f = {filename, type, {part_len, after_sub_headers}};
adamc@853 430
adamc@853 431 if (uw_set_file_input(ctx, name, f)) {
adamc@856 432 log_error(logger_data, "%s\n", uw_error_message(ctx));
adamc@853 433 return FAILED;
adamc@853 434 }
adamc@853 435 } else if (uw_set_input(ctx, name, after_sub_headers)) {
adamc@856 436 log_error(logger_data, "%s\n", uw_error_message(ctx));
adamc@853 437 return FAILED;
adamc@853 438 }
adamc@853 439 }
adamc@853 440 }
adam@1788 441 else if (!is_fancy) {
adamc@854 442 inputs = is_post ? body : query_string;
adamc@853 443
adamc@853 444 if (inputs) {
adamc@853 445 char *name, *value;
adam@1370 446 int len = strlen(inputs);
adam@1370 447
adam@1370 448 if (len+1 > rc->queryString_size) {
adam@1370 449 rc->queryString_size = len+1;
adam@1370 450 rc->queryString = realloc(rc->queryString, len+1);
adam@1370 451 }
adam@1370 452 strcpy(rc->queryString, inputs);
adamc@853 453
adamc@853 454 while (*inputs) {
adamc@853 455 name = inputs;
adamc@1134 456 if ((inputs = strchr(inputs, '&')))
adamc@853 457 *inputs++ = 0;
adamc@853 458 else
adamc@853 459 inputs = strchr(name, 0);
adamc@853 460
adamc@1134 461 if ((value = strchr(name, '='))) {
adamc@853 462 *value++ = 0;
adamc@853 463 if (uw_set_input(ctx, name, value)) {
adamc@856 464 log_error(logger_data, "%s\n", uw_error_message(ctx));
adamc@853 465 return FAILED;
adamc@853 466 }
adamc@853 467 }
adamc@853 468 else if (uw_set_input(ctx, name, "")) {
adamc@856 469 log_error(logger_data, "%s\n", uw_error_message(ctx));
adamc@853 470 return FAILED;
adamc@853 471 }
adamc@853 472 }
adamc@853 473 }
adamc@853 474 }
adamc@853 475
adamc@853 476 while (1) {
adam@1371 477 uw_setQueryString(ctx, rc->queryString);
adam@1371 478
adam@1294 479 if (!had_error) {
adam@1294 480 size_t path_len = strlen(path);
adamc@853 481
adam@1294 482 on_success(ctx);
adamc@853 483
adam@1294 484 if (path_len + 1 > rc->path_copy_size) {
adam@1294 485 rc->path_copy_size = path_len + 1;
adam@1294 486 rc->path_copy = realloc(rc->path_copy, rc->path_copy_size);
adam@1294 487 }
adam@1294 488 strcpy(rc->path_copy, path);
adam@1308 489
adam@1308 490 uw_set_deadline(ctx, uw_time + uw_time_max);
adam@1294 491 fk = uw_begin(ctx, rc->path_copy);
adam@1308 492 } else {
adam@1308 493 uw_set_deadline(ctx, uw_time + uw_time_max);
adam@1294 494 fk = uw_begin_onError(ctx, errmsg);
adam@1308 495 }
adam@1294 496
adamc@1065 497 if (fk == SUCCESS || fk == RETURN_INDIRECTLY) {
adamc@853 498 uw_commit(ctx);
adam@1294 499 if (uw_has_error(ctx) && !had_error) {
adamc@1131 500 log_error(logger_data, "Fatal error: %s\n", uw_error_message(ctx));
adamc@1131 501 uw_reset_keep_error_message(ctx);
adamc@1131 502 on_failure(ctx);
adam@1294 503
adam@1294 504 if (uw_get_app(ctx)->on_error) {
adam@1294 505 had_error = 1;
adam@1294 506 strcpy(errmsg, uw_error_message(ctx));
adam@1294 507 } else {
adam@1294 508 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1294 509 uw_write(ctx, "<html><head><title>Fatal Error</title></head><body>");
adam@1294 510 uw_write(ctx, "Fatal error: ");
adam@1294 511 uw_write(ctx, uw_error_message(ctx));
adam@1294 512 uw_write(ctx, "\n</body></html>");
adamc@1131 513
adam@1774 514 try_rollback(ctx, 0, logger_data, log_error);
adam@1774 515
adam@1294 516 return FAILED;
adam@1294 517 }
adamc@1131 518 } else
adam@1294 519 return had_error ? FAILED : SERVED;
adamc@853 520 } else if (fk == BOUNDED_RETRY) {
adamc@853 521 if (retries_left) {
adamc@856 522 log_debug(logger_data, "Error triggers bounded retry: %s\n", uw_error_message(ctx));
adamc@853 523 --retries_left;
adamc@853 524 }
adamc@853 525 else {
adamc@856 526 log_error(logger_data, "Fatal error (out of retries): %s\n", uw_error_message(ctx));
adamc@853 527
adam@1294 528 if (!had_error && uw_get_app(ctx)->on_error) {
adam@1294 529 had_error = 1;
adam@1294 530 strcpy(errmsg, uw_error_message(ctx));
adam@1294 531 } else {
adam@1294 532 uw_reset_keep_error_message(ctx);
adam@1294 533 on_failure(ctx);
adam@1294 534 uw_write_header(ctx, "Content-type: text/plain\r\n");
adam@1294 535 uw_write(ctx, "Fatal error (out of retries): ");
adam@1294 536 uw_write(ctx, uw_error_message(ctx));
adam@1294 537 uw_write(ctx, "\n");
adam@1294 538
adam@1774 539 try_rollback(ctx, 0, logger_data, log_error);
adam@1774 540
adam@1294 541 return FAILED;
adam@1294 542 }
adamc@853 543 }
adamc@853 544 } else if (fk == UNLIMITED_RETRY)
adamc@856 545 log_debug(logger_data, "Error triggers unlimited retry: %s\n", uw_error_message(ctx));
adamc@853 546 else if (fk == FATAL) {
adamc@856 547 log_error(logger_data, "Fatal error: %s\n", uw_error_message(ctx));
adamc@853 548
adam@1294 549 if (uw_get_app(ctx)->on_error && !had_error) {
adam@1294 550 had_error = 1;
adam@1294 551 strcpy(errmsg, uw_error_message(ctx));
adam@1294 552 } else {
adam@1294 553 uw_reset_keep_error_message(ctx);
adam@1294 554 on_failure(ctx);
adam@1294 555 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1294 556 uw_write(ctx, "<html><head><title>Fatal Error</title></head><body>");
adam@1294 557 uw_write(ctx, "Fatal error: ");
adam@1294 558 uw_write(ctx, uw_error_message(ctx));
adam@1294 559 uw_write(ctx, "\n</body></html>");
adamc@853 560
adam@1774 561 try_rollback(ctx, 0, logger_data, log_error);
adam@1774 562
adam@1294 563 return FAILED;
adam@1294 564 }
adamc@853 565 } else {
adamc@856 566 log_error(logger_data, "Unknown uw_handle return code!\n");
adamc@853 567
adam@1294 568 if (uw_get_app(ctx)->on_error && !had_error) {
adam@1294 569 had_error = 1;
adam@1294 570 strcpy(errmsg, "Unknown uw_handle return code");
adam@1294 571 } else {
adam@1294 572 uw_reset_keep_request(ctx);
adam@1294 573 on_failure(ctx);
adam@1294 574 uw_write_header(ctx, "Content-type: text/plain\r\n");
adam@1294 575 uw_write(ctx, "Unknown uw_handle return code!\n");
adamc@853 576
adam@1774 577 try_rollback(ctx, 0, logger_data, log_error);
adam@1774 578
adam@1294 579 return FAILED;
adam@1294 580 }
adamc@853 581 }
adamc@853 582
adam@1327 583 if (try_rollback(ctx, 1, logger_data, log_error))
adamc@853 584 return FAILED;
adamc@853 585
adamc@853 586 uw_reset_keep_request(ctx);
adamc@853 587 }
adamc@853 588 }
adamc@853 589
adamc@853 590 void *client_pruner(void *data) {
adamc@856 591 loggers *ls = (loggers *)data;
adam@1446 592 uw_context ctx = uw_request_new_context(0, ls->app, ls->logger_data, ls->log_error, ls->log_debug);
adamc@853 593
adamc@853 594 if (!ctx)
adamc@853 595 exit(1);
adamc@853 596
adamc@853 597 while (1) {
adamc@853 598 uw_prune_clients(ctx);
adamc@853 599 sleep(5);
adamc@853 600 }
adamc@853 601 }