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annotate src/c/request.c @ 1359:e525ad571e15

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Recursive record unification errors, for more detail
author Adam Chlipala <adam@chlipala.net>
date Thu, 23 Dec 2010 11:23:31 -0500
parents 87156c44824f
children 44a12a321150
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 <mhash.h>
adamc@853 15
adamc@853 16 #include "urweb.h"
adamc@853 17
adamc@853 18 #define MAX_RETRIES 5
adamc@853 19
adamc@1152 20 void *memmem(const void *b1, size_t len1, const void *b2, size_t len2);
adamc@1152 21
adam@1327 22 static int try_rollback(uw_context ctx, int will_retry, void *logger_data, uw_logger log_error) {
adam@1327 23 int r = uw_rollback(ctx, will_retry);
adamc@853 24
adamc@853 25 if (r) {
adamc@856 26 log_error(logger_data, "Error running SQL ROLLBACK\n");
adamc@853 27 uw_reset(ctx);
adamc@1115 28 uw_write(ctx, "HTTP/1.1 500 Internal Server Error\r\n");
adamc@853 29 uw_write(ctx, "Content-type: text/plain\r\n\r\n");
adamc@853 30 uw_write(ctx, "Error running SQL ROLLBACK\n");
adamc@1115 31 uw_set_error_message(ctx, "Database error; you are probably out of storage space.");
adamc@853 32 }
adamc@853 33
adamc@853 34 return r;
adamc@853 35 }
adamc@853 36
adamc@1094 37 uw_context uw_request_new_context(uw_app *app, void *logger_data, uw_logger log_error, uw_logger log_debug) {
adam@1334 38 uw_context ctx = uw_init(logger_data, log_debug);
adamc@853 39 int retries_left = MAX_RETRIES;
adamc@1094 40 uw_set_app(ctx, app);
adamc@853 41
adamc@853 42 while (1) {
adamc@853 43 failure_kind fk = uw_begin_init(ctx);
adamc@853 44
adamc@853 45 if (fk == SUCCESS) {
adamc@856 46 log_debug(logger_data, "Database connection initialized.\n");
adamc@853 47 break;
adamc@853 48 } else if (fk == BOUNDED_RETRY) {
adamc@853 49 if (retries_left) {
adamc@856 50 log_debug(logger_data, "Initialization error triggers bounded retry: %s\n", uw_error_message(ctx));
adamc@853 51 --retries_left;
adamc@853 52 } else {
adamc@856 53 log_error(logger_data, "Fatal initialization error (out of retries): %s\n", uw_error_message(ctx));
adamc@853 54 uw_free(ctx);
adamc@853 55 return NULL;
adamc@853 56 }
adamc@853 57 } else if (fk == UNLIMITED_RETRY)
adamc@856 58 log_debug(logger_data, "Initialization error triggers unlimited retry: %s\n", uw_error_message(ctx));
adamc@853 59 else if (fk == FATAL) {
adamc@856 60 log_error(logger_data, "Fatal initialization error: %s\n", uw_error_message(ctx));
adamc@853 61 uw_free(ctx);
adamc@853 62 return NULL;
adamc@853 63 } else {
adamc@856 64 log_error(logger_data, "Unknown uw_begin_init return code!\n");
adamc@853 65 uw_free(ctx);
adamc@853 66 return NULL;
adamc@853 67 }
adamc@853 68 }
adamc@853 69
adamc@853 70 return ctx;
adamc@853 71 }
adamc@853 72
adam@1308 73 static void *ticker(void *data) {
adam@1308 74 while (1) {
adam@1308 75 usleep(100000);
adam@1308 76 ++uw_time;
adam@1308 77 }
adam@1308 78
adam@1308 79 return NULL;
adam@1308 80 }
adam@1308 81
adam@1349 82 typedef struct {
adam@1349 83 uw_app *app;
adam@1349 84 void *logger_data;
adam@1349 85 uw_logger log_error, log_debug;
adam@1349 86 } loggers;
adam@1349 87
adam@1349 88 typedef struct {
adam@1349 89 loggers *ls;
adam@1349 90 uw_periodic pdic;
adam@1349 91 } periodic;
adam@1349 92
adam@1349 93 static void *periodic_loop(void *data) {
adam@1349 94 periodic *p = (periodic *)data;
adam@1349 95 uw_context ctx = uw_request_new_context(p->ls->app, p->ls->logger_data, p->ls->log_error, p->ls->log_debug);
adam@1349 96
adam@1349 97 if (!ctx)
adam@1349 98 exit(1);
adam@1349 99
adam@1349 100 while (1) {
adam@1349 101 failure_kind r;
adam@1349 102 do {
adam@1349 103 r = uw_runCallback(ctx, p->pdic.callback);
adam@1349 104 } while (r == UNLIMITED_RETRY);
adam@1349 105
adam@1349 106 sleep(p->pdic.period);
adam@1349 107 };
adam@1349 108 }
adam@1349 109
adamc@1094 110 void uw_request_init(uw_app *app, void *logger_data, uw_logger log_error, uw_logger log_debug) {
adamc@853 111 uw_context ctx;
adamc@853 112 failure_kind fk;
adam@1349 113 uw_periodic *ps;
adam@1349 114 loggers *ls = malloc(sizeof(loggers));
adam@1349 115
adam@1349 116 ls->app = app;
adam@1349 117 ls->logger_data = logger_data;
adam@1349 118 ls->log_error = log_error;
adam@1349 119 ls->log_debug = log_debug;
adamc@853 120
adamc@853 121 uw_global_init();
adamc@1094 122 uw_app_init(app);
adamc@853 123
adam@1308 124 {
adam@1308 125 pthread_t thread;
adam@1308 126
adam@1308 127 if (uw_time_max && pthread_create(&thread, NULL, ticker, NULL)) {
adam@1308 128 fprintf(stderr, "Error creating ticker thread\n");
adam@1308 129 exit(1);
adam@1308 130 }
adam@1308 131 }
adam@1308 132
adamc@1094 133 ctx = uw_request_new_context(app, logger_data, log_error, log_debug);
adamc@853 134
adamc@853 135 if (!ctx)
adamc@853 136 exit(1);
adamc@853 137
adamc@853 138 for (fk = uw_initialize(ctx); fk == UNLIMITED_RETRY; fk = uw_initialize(ctx)) {
adamc@856 139 log_debug(logger_data, "Unlimited retry during init: %s\n", uw_error_message(ctx));
adam@1327 140 uw_rollback(ctx, 1);
adamc@853 141 uw_reset(ctx);
adamc@853 142 }
adamc@853 143
adamc@853 144 if (fk != SUCCESS) {
adamc@856 145 log_error(logger_data, "Failed to initialize database! %s\n", uw_error_message(ctx));
adam@1327 146 uw_rollback(ctx, 0);
adamc@853 147 exit(1);
adamc@853 148 }
adamc@853 149
adamc@853 150 uw_free(ctx);
adam@1349 151
adam@1349 152 for (ps = app->periodics; ps->callback; ++ps) {
adam@1349 153 pthread_t thread;
adam@1349 154 periodic *arg = malloc(sizeof(periodic));
adam@1349 155 arg->ls = ls;
adam@1349 156 arg->pdic = *ps;
adam@1349 157
adam@1349 158 if (pthread_create(&thread, NULL, periodic_loop, arg)) {
adam@1349 159 fprintf(stderr, "Error creating periodic thread\n");
adam@1349 160 exit(1);
adam@1349 161 }
adam@1349 162 }
adamc@853 163 }
adamc@853 164
adamc@853 165
adamc@853 166 typedef struct uw_rc {
adamc@853 167 size_t path_copy_size;
adamc@853 168 char *path_copy;
adamc@853 169 } *uw_request_context;
adamc@853 170
adamc@853 171 uw_request_context uw_new_request_context(void) {
adamc@853 172 uw_request_context r = malloc(sizeof(struct uw_rc));
adamc@853 173 r->path_copy_size = 0;
adamc@853 174 r->path_copy = malloc(0);
adamc@853 175 return r;
adamc@853 176 }
adamc@853 177
adamc@853 178 void uw_free_request_context(uw_request_context r) {
adamc@853 179 free(r->path_copy);
adamc@853 180 free(r);
adamc@853 181 }
adamc@853 182
adamc@854 183 request_result uw_request(uw_request_context rc, uw_context ctx,
adamc@854 184 char *method, char *path, char *query_string,
adamc@854 185 char *body, size_t body_len,
adamc@856 186 void (*on_success)(uw_context), void (*on_failure)(uw_context),
adamc@856 187 void *logger_data, uw_logger log_error, uw_logger log_debug,
adamc@863 188 int sock,
adamc@863 189 int (*send)(int sockfd, const void *buf, size_t len),
adamc@863 190 int (*close)(int fd)) {
adamc@853 191 int retries_left = MAX_RETRIES;
adamc@853 192 failure_kind fk;
adamc@1134 193 int is_post = 0;
adamc@853 194 char *boundary = NULL;
adamc@1134 195 size_t boundary_len = 0;
adamc@854 196 char *inputs;
adamc@1094 197 const char *prefix = uw_get_url_prefix(ctx);
adamc@1169 198 char *s;
adam@1294 199 int had_error = 0;
adam@1294 200 char errmsg[ERROR_BUF_LEN];
adamc@1169 201
adamc@1169 202 for (s = path; *s; ++s) {
adamc@1169 203 if (s[0] == '%' && s[1] == '2' && s[2] == '7') {
adamc@1169 204 s[0] = '\'';
adamc@1169 205 memmove(s+1, s+3, strlen(s+3)+1);
adamc@1169 206 }
adamc@1169 207 }
adamc@853 208
adamc@1066 209 uw_set_currentUrl(ctx, path);
adamc@1066 210
adamc@854 211 if (!strcmp(method, "POST")) {
adamc@853 212 char *clen_s = uw_Basis_requestHeader(ctx, "Content-length");
adamc@853 213 if (!clen_s) {
adamc@1037 214 clen_s = "0";
adamc@1037 215 /*log_error(logger_data, "No Content-length with POST\n");
adamc@1037 216 return FAILED;*/
adamc@853 217 }
adamc@853 218 int clen = atoi(clen_s);
adamc@853 219 if (clen < 0) {
adamc@856 220 log_error(logger_data, "Negative Content-length with POST\n");
adamc@853 221 return FAILED;
adamc@853 222 }
adamc@853 223
adamc@854 224 if (body_len < clen) {
adamc@856 225 log_error(logger_data, "Request doesn't contain all POST data (according to Content-Length)\n");
adamc@853 226 return FAILED;
adamc@853 227 }
adamc@853 228
adamc@853 229 is_post = 1;
adamc@853 230
adamc@853 231 clen_s = uw_Basis_requestHeader(ctx, "Content-type");
adamc@853 232 if (clen_s && !strncasecmp(clen_s, "multipart/form-data", 19)) {
adamc@853 233 if (strncasecmp(clen_s + 19, "; boundary=", 11)) {
adamc@856 234 log_error(logger_data, "Bad multipart boundary spec");
adamc@853 235 return FAILED;
adamc@853 236 }
adamc@853 237
adamc@853 238 boundary = clen_s + 28;
adamc@853 239 boundary[0] = '-';
adamc@853 240 boundary[1] = '-';
adamc@853 241 boundary_len = strlen(boundary);
adam@1347 242 } else if (clen_s && strcasecmp(clen_s, "application/x-www-form-urlencoded")) {
adam@1347 243 uw_Basis_postBody pb = {clen_s, body};
adam@1347 244 uw_postBody(ctx, pb);
adamc@853 245 }
adamc@854 246 } else if (strcmp(method, "GET")) {
adamc@856 247 log_error(logger_data, "Not ready for non-GET/POST command: %s\n", method);
adamc@853 248 return FAILED;
adamc@853 249 }
adamc@853 250
adamc@1094 251 if (!strncmp(path, prefix, strlen(prefix))
adamc@1094 252 && !strcmp(path + strlen(prefix), ".msgs")) {
adamc@853 253 char *id = uw_Basis_requestHeader(ctx, "UrWeb-Client");
adamc@853 254 char *pass = uw_Basis_requestHeader(ctx, "UrWeb-Pass");
adamc@853 255
adamc@853 256 if (sock < 0) {
adamc@856 257 log_error(logger_data, ".msgs requested, but not socket supplied\n");
adamc@853 258 return FAILED;
adamc@853 259 }
adamc@853 260
adamc@853 261 if (id && pass) {
adamc@853 262 unsigned idn = atoi(id);
adamc@864 263 uw_client_connect(idn, atoi(pass), sock, send, close, logger_data, log_error);
adam@1320 264 log_debug(logger_data, "Processed request for messages by client %u\n\n", idn);
adamc@853 265 return KEEP_OPEN;
adamc@853 266 }
adamc@853 267 else {
adamc@856 268 log_error(logger_data, "Missing fields in .msgs request: %s, %s\n\n", id, pass);
adamc@853 269 return FAILED;
adamc@853 270 }
adamc@853 271 }
adamc@853 272
adamc@853 273 if (boundary) {
adamc@854 274 char *part = body, *after_sub_headers, *header, *after_header;
adamc@853 275 size_t part_len;
adamc@853 276
adamc@853 277 part = strstr(part, boundary);
adamc@853 278 if (!part) {
adamc@856 279 log_error(logger_data, "Missing first multipart boundary\n");
adamc@853 280 return FAILED;
adamc@853 281 }
adamc@853 282 part += boundary_len;
adamc@853 283
adamc@853 284 while (1) {
adamc@853 285 char *name = NULL, *filename = NULL, *type = NULL;
adamc@853 286
adamc@853 287 if (part[0] == '-' && part[1] == '-')
adamc@853 288 break;
adamc@853 289
adamc@853 290 if (*part != '\r') {
adamc@856 291 log_error(logger_data, "No \\r after multipart boundary\n");
adamc@853 292 return FAILED;
adamc@853 293 }
adamc@853 294 ++part;
adamc@853 295 if (*part != '\n') {
adamc@856 296 log_error(logger_data, "No \\n after multipart boundary\n");
adamc@853 297 return FAILED;
adamc@853 298 }
adamc@853 299 ++part;
adamc@853 300
adamc@853 301 if (!(after_sub_headers = strstr(part, "\r\n\r\n"))) {
adamc@856 302 log_error(logger_data, "Missing end of headers after multipart boundary\n");
adamc@853 303 return FAILED;
adamc@853 304 }
adamc@853 305 after_sub_headers[2] = 0;
adamc@853 306 after_sub_headers += 4;
adamc@853 307
adamc@1134 308 for (header = part; (after_header = strstr(header, "\r\n")); header = after_header + 2) {
adamc@853 309 char *colon, *after_colon;
adamc@853 310
adamc@853 311 *after_header = 0;
adamc@853 312 if (!(colon = strchr(header, ':'))) {
adamc@856 313 log_error(logger_data, "Missing colon in multipart sub-header\n");
adamc@853 314 return FAILED;
adamc@853 315 }
adamc@853 316 *colon++ = 0;
adamc@853 317 if (*colon++ != ' ') {
adamc@856 318 log_error(logger_data, "No space after colon in multipart sub-header\n");
adamc@853 319 return FAILED;
adamc@853 320 }
adamc@853 321
adamc@853 322 if (!strcasecmp(header, "Content-Disposition")) {
adamc@853 323 if (strncmp(colon, "form-data; ", 11)) {
adamc@856 324 log_error(logger_data, "Multipart data is not \"form-data\"\n");
adamc@853 325 return FAILED;
adamc@853 326 }
adamc@853 327
adamc@1134 328 for (colon += 11; (after_colon = strchr(colon, '=')); colon = after_colon) {
adamc@853 329 char *data;
adamc@853 330 after_colon[0] = 0;
adamc@853 331 if (after_colon[1] != '"') {
adamc@856 332 log_error(logger_data, "Disposition setting is missing initial quote\n");
adamc@853 333 return FAILED;
adamc@853 334 }
adamc@853 335 data = after_colon+2;
adamc@853 336 if (!(after_colon = strchr(data, '"'))) {
adamc@856 337 log_error(logger_data, "Disposition setting is missing final quote\n");
adamc@853 338 return FAILED;
adamc@853 339 }
adamc@853 340 after_colon[0] = 0;
adamc@853 341 ++after_colon;
adamc@853 342 if (after_colon[0] == ';' && after_colon[1] == ' ')
adamc@853 343 after_colon += 2;
adamc@853 344
adamc@853 345 if (!strcasecmp(colon, "name"))
adamc@853 346 name = data;
adamc@853 347 else if (!strcasecmp(colon, "filename"))
adamc@853 348 filename = data;
adamc@853 349 }
adamc@853 350 } else if (!strcasecmp(header, "Content-Type")) {
adamc@853 351 type = colon;
adamc@853 352 }
adamc@853 353 }
adamc@853 354
adamc@854 355 part = memmem(after_sub_headers, body + body_len - after_sub_headers, boundary, boundary_len);
adamc@853 356 if (!part) {
adamc@856 357 log_error(logger_data, "Missing boundary after multipart payload\n");
adamc@853 358 return FAILED;
adamc@853 359 }
adamc@853 360 part[-2] = 0;
adamc@853 361 part_len = part - after_sub_headers - 2;
adamc@853 362 part[0] = 0;
adamc@853 363 part += boundary_len;
adamc@853 364
adamc@853 365 if (filename) {
adamc@853 366 uw_Basis_file f = {filename, type, {part_len, after_sub_headers}};
adamc@853 367
adamc@853 368 if (uw_set_file_input(ctx, name, f)) {
adamc@856 369 log_error(logger_data, "%s\n", uw_error_message(ctx));
adamc@853 370 return FAILED;
adamc@853 371 }
adamc@853 372 } else if (uw_set_input(ctx, name, after_sub_headers)) {
adamc@856 373 log_error(logger_data, "%s\n", uw_error_message(ctx));
adamc@853 374 return FAILED;
adamc@853 375 }
adamc@853 376 }
adamc@853 377 }
adam@1347 378 else if (!uw_hasPostBody(ctx)) {
adamc@854 379 inputs = is_post ? body : query_string;
adamc@853 380
adamc@853 381 if (inputs) {
adamc@853 382 char *name, *value;
adamc@853 383
adamc@853 384 while (*inputs) {
adamc@853 385 name = inputs;
adamc@1134 386 if ((inputs = strchr(inputs, '&')))
adamc@853 387 *inputs++ = 0;
adamc@853 388 else
adamc@853 389 inputs = strchr(name, 0);
adamc@853 390
adamc@1134 391 if ((value = strchr(name, '='))) {
adamc@853 392 *value++ = 0;
adamc@853 393 if (uw_set_input(ctx, name, value)) {
adamc@856 394 log_error(logger_data, "%s\n", uw_error_message(ctx));
adamc@853 395 return FAILED;
adamc@853 396 }
adamc@853 397 }
adamc@853 398 else if (uw_set_input(ctx, name, "")) {
adamc@856 399 log_error(logger_data, "%s\n", uw_error_message(ctx));
adamc@853 400 return FAILED;
adamc@853 401 }
adamc@853 402 }
adamc@853 403 }
adamc@853 404 }
adamc@853 405
adamc@856 406 log_debug(logger_data, "Serving URI %s....\n", path);
adamc@853 407
adamc@853 408 while (1) {
adam@1294 409 if (!had_error) {
adam@1294 410 size_t path_len = strlen(path);
adamc@853 411
adam@1294 412 on_success(ctx);
adamc@853 413
adam@1294 414 if (path_len + 1 > rc->path_copy_size) {
adam@1294 415 rc->path_copy_size = path_len + 1;
adam@1294 416 rc->path_copy = realloc(rc->path_copy, rc->path_copy_size);
adam@1294 417 }
adam@1294 418 strcpy(rc->path_copy, path);
adam@1308 419
adam@1308 420 uw_set_deadline(ctx, uw_time + uw_time_max);
adam@1294 421 fk = uw_begin(ctx, rc->path_copy);
adam@1308 422 } else {
adam@1308 423 uw_set_deadline(ctx, uw_time + uw_time_max);
adam@1294 424 fk = uw_begin_onError(ctx, errmsg);
adam@1308 425 }
adam@1294 426
adamc@1065 427 if (fk == SUCCESS || fk == RETURN_INDIRECTLY) {
adamc@853 428 uw_commit(ctx);
adam@1294 429 if (uw_has_error(ctx) && !had_error) {
adamc@1131 430 log_error(logger_data, "Fatal error: %s\n", uw_error_message(ctx));
adamc@1131 431 uw_reset_keep_error_message(ctx);
adamc@1131 432 on_failure(ctx);
adam@1294 433
adam@1294 434 if (uw_get_app(ctx)->on_error) {
adam@1294 435 had_error = 1;
adam@1294 436 strcpy(errmsg, uw_error_message(ctx));
adam@1294 437 } else {
adam@1294 438 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1294 439 uw_write(ctx, "<html><head><title>Fatal Error</title></head><body>");
adam@1294 440 uw_write(ctx, "Fatal error: ");
adam@1294 441 uw_write(ctx, uw_error_message(ctx));
adam@1294 442 uw_write(ctx, "\n</body></html>");
adamc@1131 443
adam@1294 444 return FAILED;
adam@1294 445 }
adamc@1131 446 } else
adam@1294 447 return had_error ? FAILED : SERVED;
adamc@853 448 } else if (fk == BOUNDED_RETRY) {
adamc@853 449 if (retries_left) {
adamc@856 450 log_debug(logger_data, "Error triggers bounded retry: %s\n", uw_error_message(ctx));
adamc@853 451 --retries_left;
adamc@853 452 }
adamc@853 453 else {
adamc@856 454 log_error(logger_data, "Fatal error (out of retries): %s\n", uw_error_message(ctx));
adamc@853 455
adam@1327 456 try_rollback(ctx, 0, logger_data, log_error);
adamc@853 457
adam@1294 458 if (!had_error && uw_get_app(ctx)->on_error) {
adam@1294 459 had_error = 1;
adam@1294 460 strcpy(errmsg, uw_error_message(ctx));
adam@1294 461 } else {
adam@1294 462 uw_reset_keep_error_message(ctx);
adam@1294 463 on_failure(ctx);
adam@1294 464 uw_write_header(ctx, "Content-type: text/plain\r\n");
adam@1294 465 uw_write(ctx, "Fatal error (out of retries): ");
adam@1294 466 uw_write(ctx, uw_error_message(ctx));
adam@1294 467 uw_write(ctx, "\n");
adam@1294 468
adam@1294 469 return FAILED;
adam@1294 470 }
adamc@853 471 }
adamc@853 472 } else if (fk == UNLIMITED_RETRY)
adamc@856 473 log_debug(logger_data, "Error triggers unlimited retry: %s\n", uw_error_message(ctx));
adamc@853 474 else if (fk == FATAL) {
adamc@856 475 log_error(logger_data, "Fatal error: %s\n", uw_error_message(ctx));
adamc@853 476
adam@1327 477 try_rollback(ctx, 0, logger_data, log_error);
adamc@853 478
adam@1294 479 if (uw_get_app(ctx)->on_error && !had_error) {
adam@1294 480 had_error = 1;
adam@1294 481 strcpy(errmsg, uw_error_message(ctx));
adam@1294 482 } else {
adam@1294 483 uw_reset_keep_error_message(ctx);
adam@1294 484 on_failure(ctx);
adam@1294 485 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1294 486 uw_write(ctx, "<html><head><title>Fatal Error</title></head><body>");
adam@1294 487 uw_write(ctx, "Fatal error: ");
adam@1294 488 uw_write(ctx, uw_error_message(ctx));
adam@1294 489 uw_write(ctx, "\n</body></html>");
adamc@853 490
adam@1294 491 return FAILED;
adam@1294 492 }
adamc@853 493 } else {
adamc@856 494 log_error(logger_data, "Unknown uw_handle return code!\n");
adamc@853 495
adam@1327 496 try_rollback(ctx, 0, logger_data, log_error);
adamc@853 497
adam@1294 498 if (uw_get_app(ctx)->on_error && !had_error) {
adam@1294 499 had_error = 1;
adam@1294 500 strcpy(errmsg, "Unknown uw_handle return code");
adam@1294 501 } else {
adam@1294 502 uw_reset_keep_request(ctx);
adam@1294 503 on_failure(ctx);
adam@1294 504 uw_write_header(ctx, "Content-type: text/plain\r\n");
adam@1294 505 uw_write(ctx, "Unknown uw_handle return code!\n");
adamc@853 506
adam@1294 507 return FAILED;
adam@1294 508 }
adamc@853 509 }
adamc@853 510
adam@1327 511 if (try_rollback(ctx, 1, logger_data, log_error))
adamc@853 512 return FAILED;
adamc@853 513
adamc@853 514 uw_reset_keep_request(ctx);
adamc@853 515 }
adamc@853 516 }
adamc@853 517
adamc@853 518 void *client_pruner(void *data) {
adamc@856 519 loggers *ls = (loggers *)data;
adamc@1094 520 uw_context ctx = uw_request_new_context(ls->app, ls->logger_data, ls->log_error, ls->log_debug);
adamc@853 521
adamc@853 522 if (!ctx)
adamc@853 523 exit(1);
adamc@853 524
adamc@853 525 while (1) {
adamc@853 526 uw_prune_clients(ctx);
adamc@853 527 sleep(5);
adamc@853 528 }
adamc@853 529 }