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annotate src/c/urweb.c @ 693:655bcc9b77e0

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_Really_ implement embedded closure GC; extend Scriptcheck to figure out when client IDs must be assigned
author Adam Chlipala <adamc@hcoop.net>
date Sat, 04 Apr 2009 14:03:39 -0400
parents b6a8425e1b1f
children 7ea0df9e56b6
rev   line source
adamc@436 1 #define _XOPEN_SOURCE
adamc@436 2
adamc@117 3 #include <stdlib.h>
adamc@102 4 #include <stdio.h>
adamc@117 5 #include <string.h>
adamc@457 6 #include <strings.h>
adamc@106 7 #include <ctype.h>
adamc@167 8 #include <setjmp.h>
adamc@167 9 #include <stdarg.h>
adamc@682 10 #include <assert.h>
adamc@102 11
adamc@667 12 #include <pthread.h>
adamc@667 13
adamc@102 14 #include "types.h"
adamc@102 15
adamc@311 16 uw_unit uw_unit_v = {};
adamc@102 17
adamc@667 18
adamc@667 19 // Socket extras
adamc@667 20
adamc@667 21 int uw_really_send(int sock, const void *buf, size_t len) {
adamc@667 22 while (len > 0) {
adamc@667 23 size_t n = send(sock, buf, len, 0);
adamc@667 24
adamc@667 25 if (n < 0)
adamc@667 26 return n;
adamc@667 27
adamc@667 28 buf += n;
adamc@667 29 len -= n;
adamc@667 30 }
adamc@667 31
adamc@667 32 return 0;
adamc@667 33 }
adamc@667 34
adamc@667 35
adamc@667 36 // Buffers
adamc@667 37
adamc@667 38 typedef struct {
adamc@667 39 char *start, *front, *back;
adamc@667 40 } buf;
adamc@667 41
adamc@667 42 static void buf_init(buf *b, size_t s) {
adamc@667 43 b->front = b->start = malloc(s);
adamc@667 44 b->back = b->front + s;
adamc@667 45 }
adamc@667 46
adamc@667 47 static void buf_free(buf *b) {
adamc@667 48 free(b->start);
adamc@667 49 }
adamc@667 50
adamc@667 51 static void buf_reset(buf *b) {
adamc@667 52 b->front = b->start;
adamc@667 53 }
adamc@667 54
adamc@667 55 static void buf_check(buf *b, size_t extra) {
adamc@667 56 if (b->back - b->front < extra) {
adamc@667 57 size_t desired = b->front - b->start + extra, next;
adamc@667 58 char *new_heap;
adamc@667 59
adamc@667 60 next = b->back - b->start;
adamc@667 61 if (next == 0)
adamc@667 62 next = 1;
adamc@667 63 for (; next < desired; next *= 2);
adamc@667 64
adamc@667 65 new_heap = realloc(b->start, next);
adamc@667 66 b->front = new_heap + (b->front - b->start);
adamc@667 67 b->back = new_heap + next;
adamc@667 68 b->start = new_heap;
adamc@667 69 }
adamc@667 70 }
adamc@667 71
adamc@667 72 static size_t buf_used(buf *b) {
adamc@667 73 return b->front - b->start;
adamc@667 74 }
adamc@667 75
adamc@667 76 static size_t buf_avail(buf *b) {
adamc@667 77 return b->back - b->start;
adamc@667 78 }
adamc@667 79
adamc@668 80 static void buf_append(buf *b, const char *s, size_t len) {
adamc@672 81 buf_check(b, len+1);
adamc@668 82 memcpy(b->front, s, len);
adamc@668 83 b->front += len;
adamc@672 84 *b->front = 0;
adamc@668 85 }
adamc@667 86
adamc@668 87
adamc@672 88 // Persistent state types
adamc@667 89
adamc@667 90 typedef enum { UNUSED, USED } usage;
adamc@667 91
adamc@667 92 typedef struct client {
adamc@682 93 unsigned id;
adamc@667 94 usage mode;
adamc@682 95 int pass;
adamc@682 96 struct client *next;
adamc@689 97 pthread_mutex_t lock, pull_lock;
adamc@682 98 buf msgs;
adamc@682 99 int sock;
adamc@682 100 time_t last_contact;
adamc@682 101 unsigned n_channels;
adamc@685 102 unsigned refcount;
adamc@667 103 } client;
adamc@667 104
adamc@672 105
adamc@672 106 // Persistent client state
adamc@672 107
adamc@682 108 static client **clients, *clients_free, *clients_used;
adamc@682 109 static unsigned n_clients;
adamc@667 110
adamc@667 111 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667 112
adamc@682 113 static client *new_client() {
adamc@667 114 client *c;
adamc@667 115
adamc@667 116 pthread_mutex_lock(&clients_mutex);
adamc@667 117
adamc@667 118 if (clients_free) {
adamc@667 119 c = clients_free;
adamc@682 120 clients_free = clients_free->next;
adamc@667 121 }
adamc@667 122 else {
adamc@667 123 ++n_clients;
adamc@667 124 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667 125 c = malloc(sizeof(client));
adamc@667 126 c->id = n_clients-1;
adamc@682 127 pthread_mutex_init(&c->lock, NULL);
adamc@689 128 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682 129 buf_init(&c->msgs, 0);
adamc@667 130 clients[n_clients-1] = c;
adamc@667 131 }
adamc@667 132
adamc@682 133 pthread_mutex_lock(&c->lock);
adamc@667 134 c->mode = USED;
adamc@682 135 c->pass = rand();
adamc@682 136 c->sock = -1;
adamc@682 137 c->last_contact = time(NULL);
adamc@682 138 buf_reset(&c->msgs);
adamc@682 139 c->n_channels = 0;
adamc@685 140 c->refcount = 0;
adamc@682 141 pthread_mutex_unlock(&c->lock);
adamc@682 142
adamc@682 143 c->next = clients_used;
adamc@682 144 clients_used = c;
adamc@667 145
adamc@667 146 pthread_mutex_unlock(&clients_mutex);
adamc@667 147
adamc@667 148 return c;
adamc@667 149 }
adamc@667 150
adamc@685 151 static void use_client(client *c) {
adamc@685 152 pthread_mutex_lock(&c->lock);
adamc@685 153 ++c->refcount;
adamc@685 154 pthread_mutex_unlock(&c->lock);
adamc@689 155 pthread_mutex_lock(&c->pull_lock);
adamc@685 156 }
adamc@685 157
adamc@685 158 static void release_client(client *c) {
adamc@689 159 pthread_mutex_unlock(&c->pull_lock);
adamc@685 160 pthread_mutex_lock(&c->lock);
adamc@685 161 --c->refcount;
adamc@685 162 pthread_mutex_unlock(&c->lock);
adamc@689 163
adamc@685 164 }
adamc@685 165
adamc@667 166 static const char begin_msgs[] = "HTTP/1.1 200 OK\r\nContent-type: text/plain\r\n\r\n";
adamc@667 167
adamc@682 168 static client *find_client(unsigned id) {
adamc@667 169 client *c;
adamc@667 170
adamc@667 171 pthread_mutex_lock(&clients_mutex);
adamc@667 172
adamc@667 173 if (id >= n_clients) {
adamc@667 174 pthread_mutex_unlock(&clients_mutex);
adamc@668 175 return NULL;
adamc@667 176 }
adamc@667 177
adamc@667 178 c = clients[id];
adamc@667 179
adamc@668 180 pthread_mutex_unlock(&clients_mutex);
adamc@668 181 return c;
adamc@668 182 }
adamc@668 183
adamc@682 184 void uw_client_connect(unsigned id, int pass, int sock) {
adamc@682 185 client *c = find_client(id);
adamc@668 186
adamc@668 187 if (c == NULL) {
adamc@667 188 close(sock);
adamc@682 189 fprintf(stderr, "Out-of-bounds client request (%u)\n", id);
adamc@667 190 return;
adamc@667 191 }
adamc@667 192
adamc@682 193 pthread_mutex_lock(&c->lock);
adamc@671 194
adamc@682 195 if (c->mode != USED) {
adamc@682 196 pthread_mutex_unlock(&c->lock);
adamc@667 197 close(sock);
adamc@682 198 fprintf(stderr, "Client request for unused slot (%u)\n", id);
adamc@667 199 return;
adamc@667 200 }
adamc@667 201
adamc@682 202 if (pass != c->pass) {
adamc@682 203 pthread_mutex_unlock(&c->lock);
adamc@682 204 close(sock);
adamc@682 205 fprintf(stderr, "Wrong client password (%u, %d)\n", id, pass);
adamc@682 206 return;
adamc@667 207 }
adamc@667 208
adamc@682 209 if (c->sock != -1) {
adamc@682 210 close(c->sock);
adamc@682 211 c->sock = -1;
adamc@682 212 }
adamc@667 213
adamc@682 214 c->last_contact = time(NULL);
adamc@682 215
adamc@682 216 if (buf_used(&c->msgs) > 0) {
adamc@667 217 uw_really_send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@682 218 uw_really_send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682 219 buf_reset(&c->msgs);
adamc@667 220 close(sock);
adamc@667 221 }
adamc@668 222 else
adamc@682 223 c->sock = sock;
adamc@667 224
adamc@682 225 pthread_mutex_unlock(&c->lock);
adamc@667 226 }
adamc@667 227
adamc@682 228 static void free_client(client *c) {
adamc@683 229 printf("Freeing client %u\n", c->id);
adamc@667 230
adamc@682 231 c->mode = UNUSED;
adamc@682 232 c->pass = -1;
adamc@667 233
adamc@682 234 c->next = clients_free;
adamc@682 235 clients_free = c;
adamc@667 236 }
adamc@667 237
adamc@682 238 static uw_Basis_channel new_channel(client *c) {
adamc@682 239 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668 240 return ch;
adamc@668 241 }
adamc@668 242
adamc@685 243 static void client_send(client *c, buf *msg) {
adamc@685 244 pthread_mutex_lock(&c->lock);
adamc@671 245
adamc@682 246 if (c->sock != -1) {
adamc@682 247 uw_really_send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@682 248 uw_really_send(c->sock, msg->start, buf_used(msg));
adamc@682 249 close(c->sock);
adamc@682 250 c->sock = -1;
adamc@682 251 } else
adamc@682 252 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671 253
adamc@685 254 pthread_mutex_unlock(&c->lock);
adamc@668 255 }
adamc@668 256
adamc@668 257
adamc@668 258 // Global entry points
adamc@668 259
adamc@668 260 void uw_global_init() {
adamc@668 261 srand(time(NULL) ^ getpid());
adamc@668 262
adamc@668 263 clients = malloc(0);
adamc@668 264 }
adamc@668 265
adamc@668 266
adamc@667 267 // Single-request state
adamc@667 268
adamc@167 269 #define ERROR_BUF_LEN 1024
adamc@167 270
adamc@323 271 typedef struct regions {
adamc@323 272 struct regions *next;
adamc@323 273 } regions;
adamc@323 274
adamc@425 275 typedef struct {
adamc@425 276 void (*func)(void*);
adamc@425 277 void *arg;
adamc@425 278 } cleanup;
adamc@425 279
adamc@671 280 typedef struct {
adamc@682 281 unsigned client;
adamc@671 282 buf msgs;
adamc@682 283 } delta;
adamc@671 284
adamc@311 285 struct uw_context {
adamc@458 286 char *headers, *headers_end;
adamc@457 287
adamc@666 288 buf outHeaders, page, heap, script;
adamc@144 289 char **inputs;
adamc@167 290
adamc@565 291 int source_count;
adamc@562 292
adamc@272 293 void *db;
adamc@272 294
adamc@167 295 jmp_buf jmp_buf;
adamc@167 296
adamc@323 297 regions *regions;
adamc@323 298
adamc@425 299 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 300
adamc@667 301 const char *script_header, *url_prefix;
adamc@643 302
adamc@693 303 int needs_push;
adamc@693 304
adamc@682 305 size_t n_deltas, used_deltas;
adamc@682 306 delta *deltas;
adamc@671 307
adamc@673 308 int timeout;
adamc@673 309
adamc@682 310 client *client;
adamc@682 311
adamc@167 312 char error_message[ERROR_BUF_LEN];
adamc@117 313 };
adamc@117 314
adamc@683 315 extern int uw_inputs_len, uw_timeout;
adamc@144 316
adamc@687 317 uw_context uw_init() {
adamc@311 318 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 319
adamc@458 320 ctx->headers = ctx->headers_end = NULL;
adamc@457 321
adamc@687 322 buf_init(&ctx->outHeaders, 0);
adamc@687 323 buf_init(&ctx->page, 0);
adamc@687 324 buf_init(&ctx->heap, 0);
adamc@687 325 buf_init(&ctx->script, 0);
adamc@667 326 ctx->script.start[0] = 0;
adamc@136 327
adamc@311 328 ctx->inputs = calloc(uw_inputs_len, sizeof(char *));
adamc@144 329
adamc@272 330 ctx->db = NULL;
adamc@272 331
adamc@323 332 ctx->regions = NULL;
adamc@323 333
adamc@425 334 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 335
adamc@643 336 ctx->script_header = "";
adamc@667 337 ctx->url_prefix = "/";
adamc@693 338 ctx->needs_push = 0;
adamc@643 339
adamc@167 340 ctx->error_message[0] = 0;
adamc@167 341
adamc@565 342 ctx->source_count = 0;
adamc@562 343
adamc@682 344 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 345 ctx->deltas = malloc(0);
adamc@671 346
adamc@673 347 ctx->timeout = uw_timeout;
adamc@673 348
adamc@117 349 return ctx;
adamc@106 350 }
adamc@106 351
adamc@311 352 void uw_set_db(uw_context ctx, void *db) {
adamc@272 353 ctx->db = db;
adamc@272 354 }
adamc@272 355
adamc@311 356 void *uw_get_db(uw_context ctx) {
adamc@272 357 return ctx->db;
adamc@272 358 }
adamc@272 359
adamc@311 360 void uw_free(uw_context ctx) {
adamc@671 361 size_t i;
adamc@671 362
adamc@666 363 buf_free(&ctx->outHeaders);
adamc@666 364 buf_free(&ctx->script);
adamc@666 365 buf_free(&ctx->page);
adamc@666 366 buf_free(&ctx->heap);
adamc@144 367 free(ctx->inputs);
adamc@425 368 free(ctx->cleanup);
adamc@671 369
adamc@682 370 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671 371 buf_free(&ctx->deltas[i].msgs);
adamc@671 372
adamc@136 373 free(ctx);
adamc@136 374 }
adamc@136 375
adamc@562 376 void uw_reset_keep_error_message(uw_context ctx) {
adamc@666 377 buf_reset(&ctx->outHeaders);
adamc@666 378 buf_reset(&ctx->script);
adamc@667 379 ctx->script.start[0] = 0;
adamc@666 380 buf_reset(&ctx->page);
adamc@666 381 buf_reset(&ctx->heap);
adamc@323 382 ctx->regions = NULL;
adamc@425 383 ctx->cleanup_front = ctx->cleanup;
adamc@565 384 ctx->source_count = 0;
adamc@682 385 ctx->used_deltas = 0;
adamc@682 386 ctx->client = NULL;
adamc@167 387 }
adamc@167 388
adamc@562 389 void uw_reset_keep_request(uw_context ctx) {
adamc@562 390 uw_reset_keep_error_message(ctx);
adamc@562 391 ctx->error_message[0] = 0;
adamc@167 392 }
adamc@167 393
adamc@311 394 void uw_reset(uw_context ctx) {
adamc@311 395 uw_reset_keep_request(ctx);
adamc@311 396 memset(ctx->inputs, 0, uw_inputs_len * sizeof(char *));
adamc@144 397 }
adamc@144 398
adamc@311 399 void uw_db_init(uw_context);
adamc@311 400 void uw_handle(uw_context, char *);
adamc@167 401
adamc@311 402 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 403 int r = setjmp(ctx->jmp_buf);
adamc@272 404
adamc@272 405 if (r == 0)
adamc@311 406 uw_db_init(ctx);
adamc@272 407
adamc@272 408 return r;
adamc@272 409 }
adamc@272 410
adamc@458 411 void uw_set_headers(uw_context ctx, char *headers) {
adamc@458 412 char *s = headers, *s2;
adamc@458 413 ctx->headers = headers;
adamc@458 414
adamc@458 415 while (s2 = strchr(s, '\r')) {
adamc@458 416 s = s2;
adamc@458 417
adamc@458 418 if (s[1] == 0)
adamc@458 419 break;
adamc@458 420
adamc@458 421 *s = 0;
adamc@458 422 s += 2;
adamc@458 423 }
adamc@458 424
adamc@458 425 ctx->headers_end = s;
adamc@458 426 }
adamc@458 427
adamc@671 428 int uw_db_begin(uw_context);
adamc@167 429
adamc@311 430 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 431 cleanup *cl;
adamc@425 432
adamc@167 433 va_list ap;
adamc@167 434 va_start(ap, fmt);
adamc@167 435
adamc@167 436 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 437
adamc@425 438 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 439 cl->func(cl->arg);
adamc@425 440
adamc@425 441 ctx->cleanup_front = ctx->cleanup;
adamc@425 442
adamc@190 443 longjmp(ctx->jmp_buf, fk);
adamc@167 444 }
adamc@167 445
adamc@425 446 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 447 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 448 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 449 if (len == 0)
adamc@425 450 newLen = 1;
adamc@425 451 else
adamc@428 452 newLen = len * 2;
adamc@470 453 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 454 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 455 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 456 }
adamc@425 457
adamc@425 458 ctx->cleanup_front->func = func;
adamc@425 459 ctx->cleanup_front->arg = arg;
adamc@425 460 ++ctx->cleanup_front;
adamc@425 461 }
adamc@425 462
adamc@682 463 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@682 464 int len = strlen(h);
adamc@682 465 char *s = ctx->headers, *p;
adamc@682 466
adamc@682 467 while (p = strchr(s, ':')) {
adamc@682 468 if (p - s == len && !strncasecmp(s, h, len)) {
adamc@682 469 return p + 2;
adamc@682 470 } else {
adamc@682 471 if ((s = strchr(p, 0)) && s < ctx->headers_end)
adamc@682 472 s += 2;
adamc@682 473 else
adamc@682 474 return NULL;
adamc@682 475 }
adamc@682 476 }
adamc@682 477
adamc@682 478 return NULL;
adamc@682 479 }
adamc@682 480
adamc@682 481 void uw_login(uw_context ctx) {
adamc@693 482 if (ctx->needs_push) {
adamc@682 483 char *id_s, *pass_s;
adamc@682 484
adamc@682 485 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682 486 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682 487 unsigned id = atoi(id_s);
adamc@682 488 int pass = atoi(pass_s);
adamc@682 489 client *c = find_client(id);
adamc@682 490
adamc@682 491 if (c == NULL)
adamc@682 492 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682 493 else {
adamc@685 494 use_client(c);
adamc@682 495 ctx->client = c;
adamc@682 496
adamc@682 497 if (c->mode != USED)
adamc@682 498 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682 499 if (c->pass != pass)
adamc@682 500 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682 501 }
adamc@682 502 } else {
adamc@682 503 client *c = new_client();
adamc@685 504 use_client(c);
adamc@682 505 ctx->client = c;
adamc@682 506 }
adamc@682 507 }
adamc@682 508 }
adamc@682 509
adamc@671 510 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 511 int r = setjmp(ctx->jmp_buf);
adamc@671 512
adamc@671 513 if (r == 0) {
adamc@671 514 if (uw_db_begin(ctx))
adamc@671 515 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682 516
adamc@671 517 uw_handle(ctx, path);
adamc@671 518 }
adamc@671 519
adamc@671 520 return r;
adamc@671 521 }
adamc@671 522
adamc@682 523 uw_Basis_client uw_Basis_self(uw_context ctx, uw_unit u) {
adamc@682 524 if (ctx->client == NULL)
adamc@682 525 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 526
adamc@682 527 return ctx->client->id;
adamc@682 528 }
adamc@682 529
adamc@425 530 void uw_pop_cleanup(uw_context ctx) {
adamc@425 531 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 532 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 533
adamc@425 534 --ctx->cleanup_front;
adamc@425 535 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 536 }
adamc@425 537
adamc@311 538 char *uw_error_message(uw_context ctx) {
adamc@167 539 return ctx->error_message;
adamc@167 540 }
adamc@167 541
adamc@311 542 int uw_input_num(char*);
adamc@144 543
adamc@311 544 void uw_set_input(uw_context ctx, char *name, char *value) {
adamc@311 545 int n = uw_input_num(name);
adamc@144 546
adamc@169 547 if (n < 0)
adamc@311 548 uw_error(ctx, FATAL, "Bad input name %s", name);
adamc@144 549
adamc@311 550 if (n >= uw_inputs_len)
adamc@311 551 uw_error(ctx, FATAL, "For input name %s, index %d is out of range", name, n);
adamc@169 552
adamc@144 553 ctx->inputs[n] = value;
adamc@144 554
adamc@282 555 //printf("[%d] %s = %s\n", n, name, value);
adamc@144 556 }
adamc@144 557
adamc@311 558 char *uw_get_input(uw_context ctx, int n) {
adamc@169 559 if (n < 0)
adamc@311 560 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 561 if (n >= uw_inputs_len)
adamc@311 562 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@282 563 //printf("[%d] = %s\n", n, ctx->inputs[n]);
adamc@144 564 return ctx->inputs[n];
adamc@138 565 }
adamc@138 566
adamc@311 567 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 568 if (n < 0)
adamc@311 569 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 570 if (n >= uw_inputs_len)
adamc@311 571 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@426 572 //printf("[%d] = %s\n", n, ctx->inputs[n]);
adamc@190 573 return (ctx->inputs[n] == NULL ? "" : ctx->inputs[n]);
adamc@190 574 }
adamc@190 575
adamc@643 576 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 577 ctx->script_header = s;
adamc@643 578 }
adamc@643 579
adamc@667 580 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667 581 ctx->url_prefix = s;
adamc@667 582 }
adamc@667 583
adamc@693 584 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 585 ctx->needs_push = n;
adamc@693 586 }
adamc@693 587
adamc@667 588
adamc@667 589 static void buf_check_ctx(uw_context ctx, buf *b, size_t extra, const char *desc) {
adamc@666 590 if (b->back - b->front < extra) {
adamc@666 591 size_t desired = b->front - b->start + extra, next;
adamc@136 592 char *new_heap;
adamc@136 593
adamc@666 594 next = b->back - b->start;
adamc@317 595 if (next == 0)
adamc@317 596 next = 1;
adamc@317 597 for (; next < desired; next *= 2);
adamc@136 598
adamc@666 599 new_heap = realloc(b->start, next);
adamc@666 600 b->front = new_heap + (b->front - b->start);
adamc@666 601 b->back = new_heap + next;
adamc@136 602
adamc@667 603 if (new_heap != b->start) {
adamc@666 604 b->start = new_heap;
adamc@666 605 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136 606 }
adamc@136 607
adamc@666 608 b->start = new_heap;
adamc@136 609 }
adamc@136 610 }
adamc@136 611
adamc@666 612 static void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667 613 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666 614 }
adamc@666 615
adamc@311 616 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136 617 void *result;
adamc@136 618
adamc@311 619 uw_check_heap(ctx, len);
adamc@136 620
adamc@666 621 result = ctx->heap.front;
adamc@666 622 ctx->heap.front += len;
adamc@136 623 return result;
adamc@117 624 }
adamc@117 625
adamc@323 626 void uw_begin_region(uw_context ctx) {
adamc@666 627 regions *r = (regions *) ctx->heap.front;
adamc@323 628
adamc@323 629 uw_check_heap(ctx, sizeof(regions));
adamc@323 630
adamc@666 631 ctx->heap.front += sizeof(regions);
adamc@323 632
adamc@323 633 r->next = ctx->regions;
adamc@323 634 ctx->regions = r;
adamc@323 635 }
adamc@323 636
adamc@323 637 void uw_end_region(uw_context ctx) {
adamc@323 638 regions *r = ctx->regions;
adamc@323 639
adamc@323 640 if (r == NULL)
adamc@323 641 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 642
adamc@666 643 ctx->heap.front = (char *) r;
adamc@323 644 ctx->regions = r->next;
adamc@323 645 }
adamc@323 646
adamc@324 647 void uw_memstats(uw_context ctx) {
adamc@666 648 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666 649 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666 650 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666 651 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324 652 }
adamc@324 653
adamc@311 654 int uw_send(uw_context ctx, int sock) {
adamc@666 655 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462 656
adamc@462 657 if (n < 0)
adamc@462 658 return n;
adamc@462 659
adamc@462 660 n = uw_really_send(sock, "\r\n", 2);
adamc@462 661
adamc@462 662 if (n < 0)
adamc@462 663 return n;
adamc@462 664
adamc@666 665 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462 666 }
adamc@462 667
adamc@462 668 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667 669 buf_check(&ctx->outHeaders, extra);
adamc@462 670 }
adamc@462 671
adamc@462 672 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 673 int len = strlen(s);
adamc@462 674
adamc@462 675 uw_check_headers(ctx, len + 1);
adamc@666 676 strcpy(ctx->outHeaders.front, s);
adamc@666 677 ctx->outHeaders.front += len;
adamc@562 678 }
adamc@562 679
adamc@562 680 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667 681 buf_check(&ctx->script, extra);
adamc@562 682 }
adamc@562 683
adamc@562 684 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 685 int len = strlen(s);
adamc@562 686
adamc@562 687 uw_check_script(ctx, len + 1);
adamc@666 688 strcpy(ctx->script.front, s);
adamc@666 689 ctx->script.front += len;
adamc@562 690 }
adamc@562 691
adamc@645 692 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@667 693 if (ctx->script_header[0] == 0)
adamc@667 694 return "";
adamc@667 695 else {
adamc@679 696 char *r = uw_malloc(ctx, strlen(ctx->script_header) + 18 + buf_used(&ctx->script));
adamc@679 697 sprintf(r, "%s<script>%s</script>",
adamc@673 698 ctx->script_header,
adamc@673 699 ctx->script.start);
adamc@565 700 return r;
adamc@565 701 }
adamc@565 702 }
adamc@565 703
adamc@679 704 const char *uw_Basis_get_settings(uw_context ctx, uw_Basis_string onload) {
adamc@682 705 if (ctx->client == NULL)
adamc@667 706 return "";
adamc@668 707 else {
adamc@681 708 char *r = uw_malloc(ctx, 52 + 3 * INTS_MAX + strlen(ctx->url_prefix) + strlen(onload));
adamc@682 709 sprintf(r, " onload='client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;listener();%s'",
adamc@682 710 ctx->client->id,
adamc@682 711 ctx->client->pass,
adamc@679 712 ctx->url_prefix,
adamc@679 713 ctx->timeout,
adamc@679 714 onload);
adamc@679 715 return r;
adamc@668 716 }
adamc@667 717 }
adamc@667 718
adamc@574 719 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 720 char *r, *s2;
adamc@574 721
adamc@574 722 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574 723
adamc@666 724 r = s2 = ctx->heap.front;
adamc@574 725 *s2++ = '"';
adamc@574 726
adamc@574 727 for (; *s; s++) {
adamc@574 728 char c = *s;
adamc@574 729
adamc@574 730 switch (c) {
adamc@574 731 case '"':
adamc@574 732 strcpy(s2, "\\\"");
adamc@574 733 s2 += 2;
adamc@574 734 break;
adamc@574 735 case '\\':
adamc@574 736 strcpy(s2, "\\\\");
adamc@574 737 s2 += 2;
adamc@574 738 break;
adamc@574 739 default:
adamc@574 740 if (isprint(c))
adamc@574 741 *s2++ = c;
adamc@574 742 else {
adamc@574 743 sprintf(s2, "\\%3o", c);
adamc@574 744 s2 += 4;
adamc@574 745 }
adamc@574 746 }
adamc@574 747 }
adamc@574 748
adamc@574 749 strcpy(s2, "\"");
adamc@666 750 ctx->heap.front = s2 + 1;
adamc@574 751 return r;
adamc@574 752 }
adamc@574 753
adamc@574 754 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 755 char *r, *s2;
adamc@574 756
adamc@574 757 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574 758
adamc@666 759 r = s2 = ctx->script.front;
adamc@574 760 *s2++ = '"';
adamc@574 761
adamc@574 762 for (; *s; s++) {
adamc@574 763 char c = *s;
adamc@574 764
adamc@574 765 switch (c) {
adamc@577 766 case '\'':
adamc@574 767 strcpy(s2, "\\\"");
adamc@574 768 s2 += 2;
adamc@574 769 break;
adamc@574 770 case '\\':
adamc@574 771 strcpy(s2, "\\\\");
adamc@574 772 s2 += 2;
adamc@574 773 break;
adamc@574 774 default:
adamc@574 775 if (isprint(c))
adamc@574 776 *s2++ = c;
adamc@574 777 else {
adamc@574 778 sprintf(s2, "\\%3o", c);
adamc@574 779 s2 += 4;
adamc@574 780 }
adamc@574 781 }
adamc@574 782 }
adamc@574 783
adamc@574 784 strcpy(s2, "\"");
adamc@666 785 ctx->script.front = s2 + 1;
adamc@574 786 return r;
adamc@574 787 }
adamc@574 788
adamc@682 789 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 790 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 791 return "null";
adamc@682 792 else {
adamc@682 793 int len;
adamc@682 794 char *r;
adamc@682 795
adamc@682 796 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 797 r = ctx->heap.front;
adamc@682 798 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 799 ctx->heap.front += len+1;
adamc@682 800 return r;
adamc@682 801 }
adamc@682 802 }
adamc@682 803
adamc@577 804 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 805 int len;
adamc@577 806 size_t s_len = strlen(s);
adamc@562 807
adamc@577 808 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@666 809 sprintf(ctx->script.front, "var s%d=sc(%n", ctx->source_count, &len);
adamc@666 810 ctx->script.front += len;
adamc@666 811 strcpy(ctx->script.front, s);
adamc@666 812 ctx->script.front += s_len;
adamc@666 813 strcpy(ctx->script.front, ");");
adamc@666 814 ctx->script.front += 2;
adamc@562 815
adamc@565 816 return ctx->source_count++;
adamc@117 817 }
adamc@117 818
adamc@577 819 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577 820 int len;
adamc@577 821 size_t s_len = strlen(s);
adamc@577 822
adamc@577 823 uw_check_script(ctx, 6 + INTS_MAX + s_len);
adamc@666 824 sprintf(ctx->script.front, "s%d.v=%n", (int)n, &len);
adamc@666 825 ctx->script.front += len;
adamc@666 826 strcpy(ctx->script.front, s);
adamc@666 827 ctx->script.front += s_len;
adamc@666 828 strcpy(ctx->script.front, ";");
adamc@666 829 ctx->script.front++;
adamc@577 830
adamc@577 831 return uw_unit_v;
adamc@577 832 }
adamc@577 833
adamc@311 834 static void uw_check(uw_context ctx, size_t extra) {
adamc@667 835 buf_check(&ctx->page, extra);
adamc@117 836 }
adamc@117 837
adamc@311 838 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 839 *(ctx->page.front)++ = c;
adamc@117 840 }
adamc@117 841
adamc@311 842 void uw_writec(uw_context ctx, char c) {
adamc@311 843 uw_check(ctx, 1);
adamc@311 844 uw_writec_unsafe(ctx, c);
adamc@117 845 }
adamc@117 846
adamc@311 847 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 848 int len = strlen(s);
adamc@666 849 memcpy(ctx->page.front, s, len);
adamc@666 850 ctx->page.front += len;
adamc@117 851 }
adamc@117 852
adamc@311 853 void uw_write(uw_context ctx, const char* s) {
adamc@311 854 uw_check(ctx, strlen(s) + 1);
adamc@311 855 uw_write_unsafe(ctx, s);
adamc@666 856 *ctx->page.front = 0;
adamc@102 857 }
adamc@106 858
adamc@311 859 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 860 char *result;
adamc@136 861 int len;
adamc@311 862 uw_check_heap(ctx, INTS_MAX);
adamc@666 863 result = ctx->heap.front;
adamc@276 864 sprintf(result, "%lld%n", n, &len);
adamc@666 865 ctx->heap.front += len+1;
adamc@136 866 return result;
adamc@106 867 }
adamc@106 868
adamc@311 869 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 870 char *result;
adamc@136 871 int len;
adamc@311 872 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 873 result = ctx->heap.front;
adamc@136 874 sprintf(result, "%g%n", n, &len);
adamc@666 875 ctx->heap.front += len+1;
adamc@136 876 return result;
adamc@106 877 }
adamc@106 878
adamc@311 879 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 880 int len = strlen(s);
adamc@136 881 char *result, *p;
adamc@311 882 uw_check_heap(ctx, len * 6 + 1);
adamc@136 883
adamc@666 884 result = p = ctx->heap.front;
adamc@136 885
adamc@136 886 for (; *s; s++) {
adamc@136 887 char c = *s;
adamc@136 888
adamc@136 889 if (c == '"') {
adamc@136 890 strcpy(p, "&quot;");
adamc@136 891 p += 6;
adamc@136 892 } else if (c == '&') {
adamc@136 893 strcpy(p, "&amp;");
adamc@136 894 p += 5;
adamc@136 895 }
adamc@136 896 else if (isprint(c))
adamc@136 897 *p++ = c;
adamc@136 898 else {
adamc@136 899 int len2;
adamc@136 900 sprintf(p, "&#%d;%n", c, &len2);
adamc@136 901 p += len2;
adamc@136 902 }
adamc@136 903 }
adamc@136 904
adamc@137 905 *p++ = 0;
adamc@666 906 ctx->heap.front = p;
adamc@136 907 return result;
adamc@106 908 }
adamc@106 909
adamc@311 910 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 911 int len;
adamc@117 912
adamc@666 913 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 914 ctx->page.front += len;
adamc@106 915 }
adamc@106 916
adamc@428 917 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 918 uw_check(ctx, INTS_MAX);
adamc@311 919 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 920
adamc@428 921 return uw_unit_v;
adamc@106 922 }
adamc@106 923
adamc@428 924 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 925 int len;
adamc@117 926
adamc@311 927 uw_check(ctx, FLOATS_MAX);
adamc@666 928 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 929 ctx->page.front += len;
adamc@428 930
adamc@428 931 return uw_unit_v;
adamc@117 932 }
adamc@117 933
adamc@428 934 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 935 uw_check(ctx, strlen(s) * 6);
adamc@117 936
adamc@106 937 for (; *s; s++) {
adamc@106 938 char c = *s;
adamc@106 939
adamc@106 940 if (c == '"')
adamc@311 941 uw_write_unsafe(ctx, "&quot;");
adamc@136 942 else if (c == '&')
adamc@311 943 uw_write_unsafe(ctx, "&amp;");
adamc@106 944 else if (isprint(c))
adamc@311 945 uw_writec_unsafe(ctx, c);
adamc@106 946 else {
adamc@311 947 uw_write_unsafe(ctx, "&#");
adamc@311 948 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 949 uw_writec_unsafe(ctx, ';');
adamc@106 950 }
adamc@106 951 }
adamc@428 952
adamc@428 953 return uw_unit_v;
adamc@106 954 }
adamc@120 955
adamc@120 956
adamc@311 957 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 958 int len;
adamc@137 959 char *r;
adamc@137 960
adamc@311 961 uw_check_heap(ctx, INTS_MAX);
adamc@666 962 r = ctx->heap.front;
adamc@276 963 sprintf(r, "%lld%n", n, &len);
adamc@666 964 ctx->heap.front += len+1;
adamc@137 965 return r;
adamc@120 966 }
adamc@120 967
adamc@682 968 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 969 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 970 return "";
adamc@682 971 else {
adamc@682 972 int len;
adamc@682 973 char *r;
adamc@679 974
adamc@682 975 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 976 r = ctx->heap.front;
adamc@682 977 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 978 ctx->heap.front += len+1;
adamc@682 979 return r;
adamc@682 980 }
adamc@679 981 }
adamc@679 982
adamc@311 983 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 984 int len;
adamc@137 985 char *r;
adamc@137 986
adamc@311 987 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 988 r = ctx->heap.front;
adamc@137 989 sprintf(r, "%g%n", n, &len);
adamc@666 990 ctx->heap.front += len+1;
adamc@137 991 return r;
adamc@120 992 }
adamc@120 993
adamc@311 994 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 995 char *r, *p;
adamc@137 996
adamc@311 997 uw_check_heap(ctx, strlen(s) * 3 + 1);
adamc@137 998
adamc@666 999 for (r = p = ctx->heap.front; *s; s++) {
adamc@137 1000 char c = *s;
adamc@137 1001
adamc@137 1002 if (c == ' ')
adamc@137 1003 *p++ = '+';
adamc@137 1004 else if (isalnum(c))
adamc@137 1005 *p++ = c;
adamc@137 1006 else {
adamc@137 1007 sprintf(p, "%%%02X", c);
adamc@137 1008 p += 3;
adamc@137 1009 }
adamc@137 1010 }
adamc@137 1011
adamc@137 1012 *p++ = 0;
adamc@666 1013 ctx->heap.front = p;
adamc@137 1014 return r;
adamc@120 1015 }
adamc@120 1016
adamc@311 1017 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1018 if (b == uw_Basis_False)
adamc@186 1019 return "0";
adamc@186 1020 else
adamc@186 1021 return "1";
adamc@186 1022 }
adamc@186 1023
adamc@311 1024 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1025 int len;
adamc@120 1026
adamc@666 1027 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1028 ctx->page.front += len;
adamc@120 1029 }
adamc@120 1030
adamc@428 1031 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1032 uw_check(ctx, INTS_MAX);
adamc@311 1033 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1034
adamc@428 1035 return uw_unit_v;
adamc@120 1036 }
adamc@120 1037
adamc@682 1038 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1039 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1040 int len;
adamc@682 1041
adamc@682 1042 uw_check(ctx, INTS_MAX + 1);
adamc@682 1043 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1044 ctx->page.front += len;
adamc@682 1045 }
adamc@682 1046
adamc@679 1047 return uw_unit_v;
adamc@679 1048 }
adamc@679 1049
adamc@428 1050 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1051 int len;
adamc@120 1052
adamc@311 1053 uw_check(ctx, FLOATS_MAX);
adamc@666 1054 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1055 ctx->page.front += len;
adamc@428 1056
adamc@428 1057 return uw_unit_v;
adamc@120 1058 }
adamc@120 1059
adamc@488 1060 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488 1061 return uw_Basis_urlifyInt(ctx, t);
adamc@488 1062 }
adamc@488 1063
adamc@428 1064 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1065 uw_check(ctx, strlen(s) * 3);
adamc@120 1066
adamc@120 1067 for (; *s; s++) {
adamc@120 1068 char c = *s;
adamc@120 1069
adamc@120 1070 if (c == ' ')
adamc@311 1071 uw_writec_unsafe(ctx, '+');
adamc@120 1072 else if (isalnum(c))
adamc@311 1073 uw_writec_unsafe(ctx, c);
adamc@120 1074 else {
adamc@666 1075 sprintf(ctx->page.front, "%%%02X", c);
adamc@666 1076 ctx->page.front += 3;
adamc@120 1077 }
adamc@120 1078 }
adamc@428 1079
adamc@428 1080 return uw_unit_v;
adamc@120 1081 }
adamc@120 1082
adamc@428 1083 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1084 if (b == uw_Basis_False)
adamc@311 1085 uw_writec(ctx, '0');
adamc@186 1086 else
adamc@311 1087 uw_writec(ctx, '1');
adamc@428 1088
adamc@428 1089 return uw_unit_v;
adamc@186 1090 }
adamc@186 1091
adamc@120 1092
adamc@311 1093 static char *uw_unurlify_advance(char *s) {
adamc@144 1094 char *new_s = strchr(s, '/');
adamc@120 1095
adamc@120 1096 if (new_s)
adamc@120 1097 *new_s++ = 0;
adamc@120 1098 else
adamc@144 1099 new_s = strchr(s, 0);
adamc@144 1100
adamc@144 1101 return new_s;
adamc@144 1102 }
adamc@144 1103
adamc@311 1104 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 1105 char *new_s = uw_unurlify_advance(*s);
adamc@311 1106 uw_Basis_int r;
adamc@120 1107
adamc@276 1108 r = atoll(*s);
adamc@120 1109 *s = new_s;
adamc@120 1110 return r;
adamc@120 1111 }
adamc@120 1112
adamc@311 1113 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 1114 char *new_s = uw_unurlify_advance(*s);
adamc@311 1115 uw_Basis_float r;
adamc@120 1116
adamc@120 1117 r = atof(*s);
adamc@120 1118 *s = new_s;
adamc@120 1119 return r;
adamc@120 1120 }
adamc@120 1121
adamc@488 1122 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488 1123 return uw_Basis_unurlifyInt(ctx, s);
adamc@488 1124 }
adamc@488 1125
adamc@311 1126 static uw_Basis_string uw_unurlifyString_to(uw_context ctx, char *r, char *s) {
adamc@144 1127 char *s1, *s2;
adamc@144 1128 int n;
adamc@136 1129
adamc@144 1130 for (s1 = r, s2 = s; *s2; ++s1, ++s2) {
adamc@136 1131 char c = *s2;
adamc@136 1132
adamc@136 1133 switch (c) {
adamc@136 1134 case '+':
adamc@136 1135 *s1 = ' ';
adamc@136 1136 break;
adamc@136 1137 case '%':
adamc@169 1138 if (s2[1] == 0)
adamc@311 1139 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 1140 if (s2[2] == 0)
adamc@311 1141 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 1142 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311 1143 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136 1144 *s1 = n;
adamc@136 1145 s2 += 2;
adamc@136 1146 break;
adamc@136 1147 default:
adamc@136 1148 *s1 = c;
adamc@136 1149 }
adamc@136 1150 }
adamc@136 1151 *s1++ = 0;
adamc@144 1152 return s1;
adamc@144 1153 }
adamc@144 1154
adamc@311 1155 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 1156 char *new_s = uw_unurlify_advance(*s);
adamc@311 1157 uw_Basis_bool r;
adamc@186 1158
adamc@186 1159 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 1160 r = uw_Basis_False;
adamc@186 1161 else
adamc@311 1162 r = uw_Basis_True;
adamc@186 1163
adamc@186 1164 *s = new_s;
adamc@186 1165 return r;
adamc@186 1166 }
adamc@186 1167
adamc@311 1168 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 1169 char *new_s = uw_unurlify_advance(*s);
adamc@144 1170 char *r, *s1, *s2;
adamc@144 1171 int len, n;
adamc@144 1172
adamc@200 1173 len = strlen(*s);
adamc@311 1174 uw_check_heap(ctx, len + 1);
adamc@144 1175
adamc@666 1176 r = ctx->heap.front;
adamc@666 1177 ctx->heap.front = uw_unurlifyString_to(ctx, ctx->heap.front, *s);
adamc@136 1178 *s = new_s;
adamc@136 1179 return r;
adamc@120 1180 }
adamc@135 1181
adamc@135 1182
adamc@311 1183 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 1184 int len;
adamc@286 1185 char *r;
adamc@286 1186
adamc@311 1187 uw_check_heap(ctx, INTS_MAX);
adamc@666 1188 r = ctx->heap.front;
adamc@286 1189 sprintf(r, "%lld%n", n, &len);
adamc@666 1190 ctx->heap.front += len+1;
adamc@286 1191 return r;
adamc@286 1192 }
adamc@286 1193
adamc@428 1194 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 1195 int len;
adamc@286 1196
adamc@311 1197 uw_check(ctx, INTS_MAX);
adamc@666 1198 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1199 ctx->page.front += len;
adamc@428 1200
adamc@428 1201 return uw_unit_v;
adamc@286 1202 }
adamc@286 1203
adamc@311 1204 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 1205 int len;
adamc@286 1206 char *r;
adamc@286 1207
adamc@311 1208 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1209 r = ctx->heap.front;
adamc@286 1210 sprintf(r, "%g%n", n, &len);
adamc@666 1211 ctx->heap.front += len+1;
adamc@286 1212 return r;
adamc@286 1213 }
adamc@286 1214
adamc@428 1215 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 1216 int len;
adamc@286 1217
adamc@311 1218 uw_check(ctx, FLOATS_MAX);
adamc@666 1219 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1220 ctx->page.front += len;
adamc@428 1221
adamc@428 1222 return uw_unit_v;
adamc@286 1223 }
adamc@286 1224
adamc@311 1225 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1226 char *r, *s2;
adamc@137 1227
adamc@311 1228 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 1229
adamc@666 1230 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137 1231 char c = *s;
adamc@137 1232
adamc@137 1233 switch (c) {
adamc@137 1234 case '<':
adamc@137 1235 strcpy(s2, "&lt;");
adamc@137 1236 s2 += 4;
adamc@137 1237 break;
adamc@137 1238 case '&':
adamc@137 1239 strcpy(s2, "&amp;");
adamc@137 1240 s2 += 5;
adamc@137 1241 break;
adamc@137 1242 default:
adamc@137 1243 if (isprint(c))
adamc@137 1244 *s2++ = c;
adamc@137 1245 else {
adamc@137 1246 int len2;
adamc@137 1247 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137 1248 s2 += len2;
adamc@137 1249 }
adamc@137 1250 }
adamc@137 1251 }
adamc@137 1252
adamc@137 1253 *s2++ = 0;
adamc@666 1254 ctx->heap.front = s2;
adamc@137 1255 return r;
adamc@135 1256 }
adamc@135 1257
adamc@428 1258 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 1259 uw_check(ctx, strlen(s) * 6);
adamc@135 1260
adamc@135 1261 for (; *s; s++) {
adamc@135 1262 char c = *s;
adamc@135 1263
adamc@135 1264 switch (c) {
adamc@135 1265 case '<':
adamc@311 1266 uw_write_unsafe(ctx, "&lt;");
adamc@135 1267 break;
adamc@135 1268 case '&':
adamc@311 1269 uw_write_unsafe(ctx, "&amp;");
adamc@135 1270 break;
adamc@135 1271 default:
adamc@135 1272 if (isprint(c))
adamc@311 1273 uw_writec_unsafe(ctx, c);
adamc@135 1274 else {
adamc@311 1275 uw_write_unsafe(ctx, "&#");
adamc@311 1276 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1277 uw_writec_unsafe(ctx, ';');
adamc@135 1278 }
adamc@135 1279 }
adamc@135 1280 }
adamc@428 1281
adamc@428 1282 return uw_unit_v;
adamc@135 1283 }
adamc@180 1284
adamc@311 1285 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1286 if (b == uw_Basis_False)
adamc@286 1287 return "False";
adamc@286 1288 else
adamc@286 1289 return "True";
adamc@286 1290 }
adamc@286 1291
adamc@428 1292 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1293 if (b == uw_Basis_False) {
adamc@311 1294 uw_check(ctx, 6);
adamc@666 1295 strcpy(ctx->page.front, "False");
adamc@666 1296 ctx->page.front += 5;
adamc@286 1297 } else {
adamc@311 1298 uw_check(ctx, 5);
adamc@666 1299 strcpy(ctx->page.front, "True");
adamc@666 1300 ctx->page.front += 4;
adamc@286 1301 }
adamc@428 1302
adamc@428 1303 return uw_unit_v;
adamc@286 1304 }
adamc@286 1305
adamc@436 1306 #define TIME_FMT "%x %X"
adamc@438 1307 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436 1308
adamc@436 1309 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436 1310 size_t len;
adamc@436 1311 char *r;
adamc@436 1312 struct tm stm;
adamc@436 1313
adamc@436 1314 if (localtime_r(&t, &stm)) {
adamc@436 1315 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1316 r = ctx->heap.front;
adamc@436 1317 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1318 ctx->heap.front += len+1;
adamc@436 1319 return r;
adamc@436 1320 } else
adamc@436 1321 return "<i>Invalid time</i>";
adamc@436 1322 }
adamc@436 1323
adamc@436 1324 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436 1325 size_t len;
adamc@436 1326 char *r;
adamc@436 1327 struct tm stm;
adamc@436 1328
adamc@436 1329 if (localtime_r(&t, &stm)) {
adamc@436 1330 uw_check(ctx, TIMES_MAX);
adamc@666 1331 r = ctx->page.front;
adamc@436 1332 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1333 ctx->page.front += len;
adamc@436 1334 } else {
adamc@436 1335 uw_check(ctx, 20);
adamc@666 1336 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666 1337 ctx->page.front += 19;
adamc@436 1338 }
adamc@436 1339
adamc@436 1340 return uw_unit_v;
adamc@436 1341 }
adamc@436 1342
adamc@311 1343 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@180 1344 int len = strlen(s1) + strlen(s2) + 1;
adamc@180 1345 char *s;
adamc@180 1346
adamc@311 1347 uw_check_heap(ctx, len);
adamc@180 1348
adamc@666 1349 s = ctx->heap.front;
adamc@180 1350
adamc@180 1351 strcpy(s, s1);
adamc@180 1352 strcat(s, s2);
adamc@666 1353 ctx->heap.front += len;
adamc@180 1354
adamc@180 1355 return s;
adamc@180 1356 }
adamc@278 1357
adamc@311 1358 uw_Basis_string uw_Basis_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@278 1359 int len = strlen(s1) + 1;
adamc@278 1360 char *s;
adamc@278 1361
adamc@311 1362 uw_check_heap(ctx, len);
adamc@278 1363
adamc@666 1364 s = ctx->heap.front;
adamc@278 1365
adamc@278 1366 strcpy(s, s1);
adamc@666 1367 ctx->heap.front += len;
adamc@278 1368
adamc@278 1369 return s;
adamc@278 1370 }
adamc@280 1371
adamc@493 1372 uw_Basis_string uw_Basis_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 1373 if (s1)
adamc@493 1374 return uw_Basis_strdup(ctx, s1);
adamc@493 1375 else
adamc@493 1376 return NULL;
adamc@493 1377 }
adamc@493 1378
adamc@280 1379
adamc@311 1380 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 1381 int len;
adamc@281 1382 char *r;
adamc@281 1383
adamc@311 1384 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 1385 r = ctx->heap.front;
adamc@281 1386 sprintf(r, "%lld::int8%n", n, &len);
adamc@666 1387 ctx->heap.front += len+1;
adamc@281 1388 return r;
adamc@281 1389 }
adamc@281 1390
adamc@467 1391 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 1392 if (n == NULL)
adamc@467 1393 return "NULL";
adamc@467 1394 else
adamc@467 1395 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 1396 }
adamc@467 1397
adamc@311 1398 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 1399 int len;
adamc@281 1400 char *r;
adamc@281 1401
adamc@311 1402 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 1403 r = ctx->heap.front;
adamc@281 1404 sprintf(r, "%g::float8%n", n, &len);
adamc@666 1405 ctx->heap.front += len+1;
adamc@281 1406 return r;
adamc@281 1407 }
adamc@281 1408
adamc@467 1409 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 1410 if (n == NULL)
adamc@467 1411 return "NULL";
adamc@467 1412 else
adamc@467 1413 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 1414 }
adamc@467 1415
adamc@281 1416
adamc@311 1417 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 1418 char *r, *s2;
adamc@280 1419
adamc@311 1420 uw_check_heap(ctx, strlen(s) * 2 + 10);
adamc@280 1421
adamc@666 1422 r = s2 = ctx->heap.front;
adamc@280 1423 *s2++ = 'E';
adamc@280 1424 *s2++ = '\'';
adamc@280 1425
adamc@280 1426 for (; *s; s++) {
adamc@280 1427 char c = *s;
adamc@280 1428
adamc@280 1429 switch (c) {
adamc@280 1430 case '\'':
adamc@280 1431 strcpy(s2, "\\'");
adamc@280 1432 s2 += 2;
adamc@280 1433 break;
adamc@280 1434 case '\\':
adamc@280 1435 strcpy(s2, "\\\\");
adamc@280 1436 s2 += 2;
adamc@280 1437 break;
adamc@280 1438 default:
adamc@280 1439 if (isprint(c))
adamc@280 1440 *s2++ = c;
adamc@280 1441 else {
adamc@280 1442 sprintf(s2, "\\%3o", c);
adamc@280 1443 s2 += 4;
adamc@280 1444 }
adamc@280 1445 }
adamc@280 1446 }
adamc@280 1447
adamc@281 1448 strcpy(s2, "'::text");
adamc@666 1449 ctx->heap.front = s2 + 8;
adamc@280 1450 return r;
adamc@280 1451 }
adamc@281 1452
adamc@682 1453 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1454 int len;
adamc@682 1455 char *r;
adamc@682 1456 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 1457
adamc@682 1458 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 1459 r = ctx->heap.front;
adamc@682 1460 sprintf(r, "%lld::int8%n", combo, &len);
adamc@682 1461 ctx->heap.front += len+1;
adamc@682 1462 return r;
adamc@682 1463 }
adamc@682 1464
adamc@682 1465 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1466 int len;
adamc@682 1467 char *r;
adamc@682 1468 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 1469
adamc@682 1470 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1471 r = ctx->heap.front;
adamc@682 1472 sprintf(r, "%lld%n", combo, &len);
adamc@682 1473 ctx->heap.front += len+1;
adamc@682 1474 return r;
adamc@682 1475 }
adamc@682 1476
adamc@682 1477 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 1478 int len;
adamc@682 1479 char *r;
adamc@682 1480
adamc@682 1481 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 1482 r = ctx->heap.front;
adamc@682 1483 sprintf(r, "%u::int4%n", cli, &len);
adamc@682 1484 ctx->heap.front += len+1;
adamc@682 1485 return r;
adamc@682 1486 }
adamc@682 1487
adamc@682 1488 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 1489 int len;
adamc@682 1490 char *r;
adamc@682 1491
adamc@682 1492 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1493 r = ctx->heap.front;
adamc@682 1494 sprintf(r, "%u%n", cli, &len);
adamc@682 1495 ctx->heap.front += len+1;
adamc@682 1496 return r;
adamc@682 1497 }
adamc@682 1498
adamc@467 1499 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 1500 if (s == NULL)
adamc@467 1501 return "NULL";
adamc@467 1502 else
adamc@467 1503 return uw_Basis_sqlifyString(ctx, s);
adamc@467 1504 }
adamc@467 1505
adamc@311 1506 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1507 if (b == uw_Basis_False)
adamc@281 1508 return "FALSE";
adamc@281 1509 else
adamc@281 1510 return "TRUE";
adamc@281 1511 }
adamc@282 1512
adamc@467 1513 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 1514 if (b == NULL)
adamc@467 1515 return "NULL";
adamc@467 1516 else
adamc@467 1517 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 1518 }
adamc@467 1519
adamc@439 1520 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 1521 size_t len;
adamc@682 1522 char *r, *s;
adamc@682 1523 struct tm stm;
adamc@682 1524
adamc@682 1525 if (localtime_r(&t, &stm)) {
adamc@682 1526 s = uw_malloc(ctx, TIMES_MAX);
adamc@682 1527 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682 1528 r = uw_malloc(ctx, len + 14);
adamc@682 1529 sprintf(r, "'%s'::timestamp", s);
adamc@682 1530 return r;
adamc@682 1531 } else
adamc@682 1532 return "<Invalid time>";
adamc@682 1533 }
adamc@682 1534
adamc@682 1535 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 1536 size_t len;
adamc@439 1537 char *r;
adamc@439 1538 struct tm stm;
adamc@439 1539
adamc@439 1540 if (localtime_r(&t, &stm)) {
adamc@439 1541 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1542 r = ctx->heap.front;
adamc@439 1543 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1544 ctx->heap.front += len+1;
adamc@439 1545 return r;
adamc@439 1546 } else
adamc@439 1547 return "<Invalid time>";
adamc@439 1548 }
adamc@439 1549
adamc@467 1550 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 1551 if (t == NULL)
adamc@467 1552 return "NULL";
adamc@467 1553 else
adamc@467 1554 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 1555 }
adamc@467 1556
adamc@311 1557 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 1558 static uw_Basis_int true = 1;
adamc@311 1559 static uw_Basis_int false = 0;
adamc@282 1560
adamc@311 1561 if (b == uw_Basis_False)
adamc@282 1562 return (char *)&false;
adamc@282 1563 else
adamc@282 1564 return (char *)&true;
adamc@282 1565 }
adamc@284 1566
adamc@311 1567 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 1568 int len;
adamc@284 1569 char *r;
adamc@284 1570
adamc@311 1571 uw_check_heap(ctx, INTS_MAX);
adamc@666 1572 r = ctx->heap.front;
adamc@284 1573 sprintf(r, "%lld%n", n, &len);
adamc@666 1574 ctx->heap.front += len+1;
adamc@284 1575 return r;
adamc@284 1576 }
adamc@285 1577
adamc@311 1578 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 1579 int len;
adamc@285 1580 char *r;
adamc@285 1581
adamc@311 1582 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1583 r = ctx->heap.front;
adamc@285 1584 sprintf(r, "%g%n", n, &len);
adamc@666 1585 ctx->heap.front += len+1;
adamc@285 1586 return r;
adamc@285 1587 }
adamc@285 1588
adamc@311 1589 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 1590 if (b == uw_Basis_False)
adamc@285 1591 return "False";
adamc@285 1592 else
adamc@285 1593 return "True";
adamc@285 1594 }
adamc@288 1595
adamc@436 1596 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436 1597 size_t len;
adamc@436 1598 char *r;
adamc@436 1599 struct tm stm;
adamc@436 1600
adamc@436 1601 if (localtime_r(&t, &stm)) {
adamc@436 1602 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1603 r = ctx->heap.front;
adamc@436 1604 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1605 ctx->heap.front += len+1;
adamc@436 1606 return r;
adamc@436 1607 } else
adamc@436 1608 return "<Invalid time>";
adamc@436 1609 }
adamc@288 1610
adamc@311 1611 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 1612 char *endptr;
adamc@311 1613 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 1614
adamc@288 1615 if (*s != '\0' && *endptr == '\0') {
adamc@311 1616 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 1617 *r = n;
adamc@288 1618 return r;
adamc@288 1619 } else
adamc@288 1620 return NULL;
adamc@288 1621 }
adamc@289 1622
adamc@311 1623 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 1624 char *endptr;
adamc@311 1625 uw_Basis_float n = strtod(s, &endptr);
adamc@289 1626
adamc@289 1627 if (*s != '\0' && *endptr == '\0') {
adamc@311 1628 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 1629 *r = n;
adamc@289 1630 return r;
adamc@289 1631 } else
adamc@289 1632 return NULL;
adamc@289 1633 }
adamc@289 1634
adamc@311 1635 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 1636 static uw_Basis_bool true = uw_Basis_True;
adamc@311 1637 static uw_Basis_bool false = uw_Basis_False;
adamc@289 1638
adamc@289 1639 if (!strcasecmp (s, "True"))
adamc@289 1640 return &true;
adamc@289 1641 else if (!strcasecmp (s, "False"))
adamc@289 1642 return &false;
adamc@289 1643 else
adamc@289 1644 return NULL;
adamc@289 1645 }
adamc@292 1646
adamc@436 1647 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 1648 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 1649 struct tm stm;
adamc@436 1650
adamc@439 1651 if (dot) {
adamc@439 1652 *dot = 0;
adamc@439 1653 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 1654 *dot = '.';
adamc@439 1655 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1656 *r = mktime(&stm);
adamc@439 1657 return r;
adamc@439 1658 }
adamc@439 1659 else {
adamc@439 1660 *dot = '.';
adamc@439 1661 return NULL;
adamc@439 1662 }
adamc@436 1663 }
adamc@439 1664 else {
adamc@439 1665 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 1666 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1667 *r = mktime(&stm);
adamc@439 1668 return r;
adamc@439 1669 }
adamc@439 1670 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 1671 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1672 *r = mktime(&stm);
adamc@439 1673 return r;
adamc@439 1674 }
adamc@439 1675 else
adamc@439 1676 return NULL;
adamc@439 1677 }
adamc@436 1678 }
adamc@436 1679
adamc@311 1680 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 1681 char *endptr;
adamc@311 1682 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 1683
adamc@292 1684 if (*s != '\0' && *endptr == '\0')
adamc@292 1685 return n;
adamc@292 1686 else
adamc@311 1687 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292 1688 }
adamc@293 1689
adamc@682 1690 #include <errno.h>
adamc@682 1691
adamc@678 1692 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 1693 unsigned long long n;
adamc@682 1694
adamc@682 1695 if (sscanf(s, "%llu", &n) < 1)
adamc@682 1696 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682 1697 else {
adamc@682 1698 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 1699 return ch;
adamc@682 1700 }
adamc@682 1701 }
adamc@682 1702
adamc@682 1703 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 1704 char *endptr;
adamc@682 1705 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 1706
adamc@678 1707 if (*s != '\0' && *endptr == '\0')
adamc@678 1708 return n;
adamc@678 1709 else
adamc@682 1710 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678 1711 }
adamc@678 1712
adamc@311 1713 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 1714 char *endptr;
adamc@311 1715 uw_Basis_float n = strtod(s, &endptr);
adamc@293 1716
adamc@293 1717 if (*s != '\0' && *endptr == '\0')
adamc@293 1718 return n;
adamc@293 1719 else
adamc@311 1720 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293 1721 }
adamc@293 1722
adamc@311 1723 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 1724 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 1725 return uw_Basis_True;
adamc@296 1726 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 1727 return uw_Basis_False;
adamc@293 1728 else
adamc@311 1729 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293 1730 }
adamc@436 1731
adamc@436 1732 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 1733 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 1734 struct tm stm = {};
adamc@436 1735
adamc@438 1736 if (dot) {
adamc@438 1737 *dot = 0;
adamc@438 1738 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 1739 *dot = '.';
adamc@438 1740 return mktime(&stm);
adamc@438 1741 }
adamc@438 1742 else {
adamc@438 1743 *dot = '.';
adamc@438 1744 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 1745 }
adamc@438 1746 }
adamc@438 1747 else {
adamc@439 1748 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439 1749 return mktime(&stm);
adamc@439 1750 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438 1751 return mktime(&stm);
adamc@438 1752 else
adamc@438 1753 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 1754 }
adamc@436 1755 }
adamc@457 1756
adamc@463 1757 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 1758 int len = strlen(c);
adamc@666 1759 char *s = ctx->headers, *p = ctx->outHeaders.start;
adamc@474 1760
adamc@474 1761 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474 1762 char *p2;
adamc@474 1763 p += 13;
adamc@474 1764 p2 = strchr(p, '=');
adamc@474 1765
adamc@474 1766 if (p2) {
adamc@474 1767 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 1768
adamc@474 1769 if (!strncasecmp(p, c, p2 - p)) {
adamc@474 1770 char *ret = uw_malloc(ctx, sz + 1);
adamc@474 1771 memcpy(ret, p2+1, sz);
adamc@474 1772 ret[sz] = 0;
adamc@474 1773 return ret;
adamc@474 1774 }
adamc@474 1775 }
adamc@474 1776 }
adamc@463 1777
adamc@463 1778 while (p = strchr(s, ':')) {
adamc@476 1779 if (!strncasecmp(s, "Cookie: ", 8)) {
adamc@476 1780 p += 2;
adamc@476 1781 while (1) {
adamc@476 1782 if (!strncmp(p, c, len)
adamc@476 1783 && p + len < ctx->headers_end && p[len] == '=')
adamc@476 1784 return p + 1 + len;
adamc@476 1785 else if (p = strchr(p, ';'))
adamc@476 1786 p += 2;
adamc@476 1787 else if ((s = strchr(s, 0)) && s < ctx->headers_end) {
adamc@476 1788 s += 2;
adamc@476 1789 break;
adamc@476 1790 }
adamc@476 1791 else
adamc@476 1792 return NULL;
adamc@476 1793 }
adamc@463 1794 } else {
adamc@463 1795 if ((s = strchr(p, 0)) && s < ctx->headers_end)
adamc@463 1796 s += 2;
adamc@463 1797 else
adamc@463 1798 return NULL;
adamc@463 1799 }
adamc@463 1800 }
adamc@457 1801 }
adamc@462 1802
adamc@466 1803 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462 1804 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 1805 uw_write_header(ctx, c);
adamc@462 1806 uw_write_header(ctx, "=");
adamc@462 1807 uw_write_header(ctx, v);
adamc@466 1808 uw_write_header(ctx, "; path=");
adamc@466 1809 uw_write_header(ctx, prefix);
adamc@462 1810 uw_write_header(ctx, "\r\n");
adamc@462 1811
adamc@462 1812 return uw_unit_v;
adamc@462 1813 }
adamc@667 1814
adamc@682 1815 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 1816 unsigned i;
adamc@682 1817 delta *d;
adamc@671 1818
adamc@682 1819 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 1820 if (ctx->deltas[i].client == client)
adamc@682 1821 return &ctx->deltas[i];
adamc@671 1822
adamc@682 1823 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682 1824 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682 1825 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 1826 }
adamc@671 1827
adamc@682 1828 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 1829 d->client = client;
adamc@682 1830 buf_reset(&d->msgs);
adamc@682 1831 return d;
adamc@671 1832 }
adamc@671 1833
adamc@668 1834 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 1835 if (ctx->client == NULL)
adamc@682 1836 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 1837
adamc@682 1838 return new_channel(ctx->client);
adamc@668 1839 }
adamc@668 1840
adamc@668 1841 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 1842 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 1843 size_t len;
adamc@682 1844 int preLen;
adamc@682 1845 char pre[INTS_MAX + 2];
adamc@668 1846
adamc@682 1847 len = strlen(msg);
adamc@682 1848
adamc@682 1849 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 1850
adamc@682 1851 buf_append(&d->msgs, pre, preLen);
adamc@682 1852 buf_append(&d->msgs, msg, len);
adamc@682 1853 buf_append(&d->msgs, "\n", 1);
adamc@671 1854
adamc@671 1855 return uw_unit_v;
adamc@668 1856 }
adamc@671 1857
adamc@671 1858 int uw_db_commit(uw_context);
adamc@671 1859 int uw_db_rollback(uw_context);
adamc@671 1860
adamc@671 1861 void uw_commit(uw_context ctx) {
adamc@682 1862 unsigned i;
adamc@671 1863
adamc@671 1864 if (uw_db_commit(ctx))
adamc@671 1865 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682 1866
adamc@682 1867 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 1868 delta *d = &ctx->deltas[i];
adamc@682 1869 client *c = find_client(d->client);
adamc@682 1870
adamc@682 1871 assert (c != NULL && c->mode == USED);
adamc@682 1872
adamc@685 1873 client_send(c, &d->msgs);
adamc@682 1874 }
adamc@682 1875
adamc@682 1876 if (ctx->client)
adamc@685 1877 release_client(ctx->client);
adamc@671 1878 }
adamc@671 1879
adamc@671 1880 int uw_rollback(uw_context ctx) {
adamc@682 1881 if (ctx->client)
adamc@685 1882 release_client(ctx->client);
adamc@671 1883
adamc@671 1884 return uw_db_rollback(ctx);
adamc@671 1885 }
adamc@683 1886
adamc@683 1887
adamc@683 1888 // "Garbage collection"
adamc@683 1889
adamc@683 1890 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683 1891
adamc@683 1892 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683 1893 int r = setjmp(ctx->jmp_buf);
adamc@683 1894
adamc@684 1895 if (r == 0) {
adamc@684 1896 if (uw_db_begin(ctx))
adamc@684 1897 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683 1898 uw_expunger(ctx, cli);
adamc@684 1899 if (uw_db_commit(ctx))
adamc@684 1900 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684 1901 }
adamc@683 1902
adamc@683 1903 return r;
adamc@683 1904 }
adamc@683 1905
adamc@683 1906 void uw_prune_clients(uw_context ctx) {
adamc@683 1907 client *c, *next, *prev = NULL;
adamc@683 1908 time_t cutoff;
adamc@683 1909
adamc@683 1910 cutoff = time(NULL) - uw_timeout;
adamc@683 1911
adamc@683 1912 pthread_mutex_lock(&clients_mutex);
adamc@683 1913
adamc@683 1914 for (c = clients_used; c; c = next) {
adamc@683 1915 next = c->next;
adamc@683 1916 pthread_mutex_lock(&c->lock);
adamc@685 1917 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 1918 failure_kind fk = UNLIMITED_RETRY;
adamc@683 1919 if (prev)
adamc@683 1920 prev->next = next;
adamc@683 1921 else
adamc@683 1922 clients_used = next;
adamc@684 1923 uw_reset(ctx);
adamc@683 1924 while (fk == UNLIMITED_RETRY) {
adamc@683 1925 fk = uw_expunge(ctx, c->id);
adamc@684 1926 if (fk == UNLIMITED_RETRY) {
adamc@684 1927 uw_db_rollback(ctx);
adamc@684 1928 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 1929 }
adamc@683 1930 }
adamc@684 1931 if (fk == SUCCESS)
adamc@684 1932 free_client(c);
adamc@684 1933 else {
adamc@684 1934 uw_db_rollback(ctx);
adamc@683 1935 printf("Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684 1936 }
adamc@683 1937 }
adamc@683 1938 else
adamc@683 1939 prev = c;
adamc@683 1940 pthread_mutex_unlock(&c->lock);
adamc@683 1941 }
adamc@683 1942
adamc@683 1943 pthread_mutex_unlock(&clients_mutex);
adamc@683 1944 }
adamc@687 1945
adamc@687 1946 void uw_initializer(uw_context ctx);
adamc@687 1947
adamc@687 1948 failure_kind uw_initialize(uw_context ctx) {
adamc@687 1949 int r = setjmp(ctx->jmp_buf);
adamc@687 1950
adamc@687 1951 if (r == 0) {
adamc@687 1952 if (uw_db_begin(ctx))
adamc@687 1953 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687 1954 uw_initializer(ctx);
adamc@687 1955 if (uw_db_commit(ctx))
adamc@687 1956 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 1957 }
adamc@687 1958
adamc@687 1959 return r;
adamc@687 1960 }