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annotate src/c/urweb.c @ 737:d049d31a1966

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Initial support for blobs and upload
author Adam Chlipala <adamc@hcoop.net>
date Sat, 25 Apr 2009 13:59:11 -0400
parents 796e42c93c48
children 4bb7e1c0550a
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@737 285 typedef enum {
adamc@737 286 UNSET, NORMAL, FILES
adamc@737 287 } input_kind;
adamc@737 288
adamc@737 289 typedef struct {
adamc@737 290 input_kind kind;
adamc@737 291 union {
adamc@737 292 char *normal;
adamc@737 293 uw_Basis_files files;
adamc@737 294 } data;
adamc@737 295 } input;
adamc@737 296
adamc@311 297 struct uw_context {
adamc@458 298 char *headers, *headers_end;
adamc@457 299
adamc@666 300 buf outHeaders, page, heap, script;
adamc@737 301 input *inputs;
adamc@167 302
adamc@565 303 int source_count;
adamc@562 304
adamc@272 305 void *db;
adamc@272 306
adamc@167 307 jmp_buf jmp_buf;
adamc@167 308
adamc@323 309 regions *regions;
adamc@323 310
adamc@425 311 cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425 312
adamc@667 313 const char *script_header, *url_prefix;
adamc@643 314
adamc@736 315 int needs_push, needs_sig;
adamc@693 316
adamc@682 317 size_t n_deltas, used_deltas;
adamc@682 318 delta *deltas;
adamc@671 319
adamc@673 320 int timeout;
adamc@673 321
adamc@682 322 client *client;
adamc@682 323
adamc@167 324 char error_message[ERROR_BUF_LEN];
adamc@117 325 };
adamc@117 326
adamc@683 327 extern int uw_inputs_len, uw_timeout;
adamc@144 328
adamc@687 329 uw_context uw_init() {
adamc@311 330 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136 331
adamc@458 332 ctx->headers = ctx->headers_end = NULL;
adamc@457 333
adamc@687 334 buf_init(&ctx->outHeaders, 0);
adamc@687 335 buf_init(&ctx->page, 0);
adamc@687 336 buf_init(&ctx->heap, 0);
adamc@698 337 buf_init(&ctx->script, 1);
adamc@667 338 ctx->script.start[0] = 0;
adamc@136 339
adamc@737 340 ctx->inputs = calloc(uw_inputs_len, sizeof(input));
adamc@144 341
adamc@272 342 ctx->db = NULL;
adamc@272 343
adamc@323 344 ctx->regions = NULL;
adamc@323 345
adamc@425 346 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425 347
adamc@643 348 ctx->script_header = "";
adamc@667 349 ctx->url_prefix = "/";
adamc@693 350 ctx->needs_push = 0;
adamc@736 351 ctx->needs_sig = 0;
adamc@643 352
adamc@167 353 ctx->error_message[0] = 0;
adamc@167 354
adamc@565 355 ctx->source_count = 0;
adamc@562 356
adamc@682 357 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671 358 ctx->deltas = malloc(0);
adamc@671 359
adamc@673 360 ctx->timeout = uw_timeout;
adamc@673 361
adamc@700 362 ctx->client = NULL;
adamc@700 363
adamc@700 364 ctx->error_message[0] = 0;
adamc@700 365
adamc@117 366 return ctx;
adamc@106 367 }
adamc@106 368
adamc@311 369 void uw_set_db(uw_context ctx, void *db) {
adamc@272 370 ctx->db = db;
adamc@272 371 }
adamc@272 372
adamc@311 373 void *uw_get_db(uw_context ctx) {
adamc@272 374 return ctx->db;
adamc@272 375 }
adamc@272 376
adamc@311 377 void uw_free(uw_context ctx) {
adamc@671 378 size_t i;
adamc@671 379
adamc@666 380 buf_free(&ctx->outHeaders);
adamc@666 381 buf_free(&ctx->script);
adamc@666 382 buf_free(&ctx->page);
adamc@666 383 buf_free(&ctx->heap);
adamc@144 384 free(ctx->inputs);
adamc@425 385 free(ctx->cleanup);
adamc@671 386
adamc@682 387 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671 388 buf_free(&ctx->deltas[i].msgs);
adamc@671 389
adamc@136 390 free(ctx);
adamc@136 391 }
adamc@136 392
adamc@562 393 void uw_reset_keep_error_message(uw_context ctx) {
adamc@666 394 buf_reset(&ctx->outHeaders);
adamc@666 395 buf_reset(&ctx->script);
adamc@667 396 ctx->script.start[0] = 0;
adamc@666 397 buf_reset(&ctx->page);
adamc@666 398 buf_reset(&ctx->heap);
adamc@323 399 ctx->regions = NULL;
adamc@425 400 ctx->cleanup_front = ctx->cleanup;
adamc@565 401 ctx->source_count = 0;
adamc@682 402 ctx->used_deltas = 0;
adamc@682 403 ctx->client = NULL;
adamc@167 404 }
adamc@167 405
adamc@562 406 void uw_reset_keep_request(uw_context ctx) {
adamc@562 407 uw_reset_keep_error_message(ctx);
adamc@562 408 ctx->error_message[0] = 0;
adamc@167 409 }
adamc@167 410
adamc@311 411 void uw_reset(uw_context ctx) {
adamc@311 412 uw_reset_keep_request(ctx);
adamc@737 413 memset(ctx->inputs, 0, uw_inputs_len * sizeof(input));
adamc@144 414 }
adamc@144 415
adamc@311 416 void uw_db_init(uw_context);
adamc@311 417 void uw_handle(uw_context, char *);
adamc@167 418
adamc@311 419 failure_kind uw_begin_init(uw_context ctx) {
adamc@272 420 int r = setjmp(ctx->jmp_buf);
adamc@272 421
adamc@272 422 if (r == 0)
adamc@311 423 uw_db_init(ctx);
adamc@272 424
adamc@272 425 return r;
adamc@272 426 }
adamc@272 427
adamc@458 428 void uw_set_headers(uw_context ctx, char *headers) {
adamc@458 429 char *s = headers, *s2;
adamc@458 430 ctx->headers = headers;
adamc@458 431
adamc@458 432 while (s2 = strchr(s, '\r')) {
adamc@458 433 s = s2;
adamc@458 434
adamc@458 435 if (s[1] == 0)
adamc@458 436 break;
adamc@458 437
adamc@458 438 *s = 0;
adamc@458 439 s += 2;
adamc@458 440 }
adamc@458 441
adamc@458 442 ctx->headers_end = s;
adamc@458 443 }
adamc@458 444
adamc@671 445 int uw_db_begin(uw_context);
adamc@167 446
adamc@311 447 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425 448 cleanup *cl;
adamc@425 449
adamc@167 450 va_list ap;
adamc@167 451 va_start(ap, fmt);
adamc@167 452
adamc@167 453 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167 454
adamc@425 455 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425 456 cl->func(cl->arg);
adamc@425 457
adamc@425 458 ctx->cleanup_front = ctx->cleanup;
adamc@425 459
adamc@190 460 longjmp(ctx->jmp_buf, fk);
adamc@167 461 }
adamc@167 462
adamc@425 463 void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425 464 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425 465 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425 466 if (len == 0)
adamc@425 467 newLen = 1;
adamc@425 468 else
adamc@428 469 newLen = len * 2;
adamc@470 470 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425 471 ctx->cleanup_front = ctx->cleanup + len;
adamc@425 472 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425 473 }
adamc@425 474
adamc@425 475 ctx->cleanup_front->func = func;
adamc@425 476 ctx->cleanup_front->arg = arg;
adamc@425 477 ++ctx->cleanup_front;
adamc@425 478 }
adamc@425 479
adamc@682 480 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@682 481 int len = strlen(h);
adamc@682 482 char *s = ctx->headers, *p;
adamc@682 483
adamc@682 484 while (p = strchr(s, ':')) {
adamc@682 485 if (p - s == len && !strncasecmp(s, h, len)) {
adamc@682 486 return p + 2;
adamc@682 487 } else {
adamc@682 488 if ((s = strchr(p, 0)) && s < ctx->headers_end)
adamc@682 489 s += 2;
adamc@682 490 else
adamc@682 491 return NULL;
adamc@682 492 }
adamc@682 493 }
adamc@682 494
adamc@682 495 return NULL;
adamc@682 496 }
adamc@682 497
adamc@682 498 void uw_login(uw_context ctx) {
adamc@693 499 if (ctx->needs_push) {
adamc@682 500 char *id_s, *pass_s;
adamc@682 501
adamc@682 502 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682 503 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682 504 unsigned id = atoi(id_s);
adamc@682 505 int pass = atoi(pass_s);
adamc@682 506 client *c = find_client(id);
adamc@682 507
adamc@682 508 if (c == NULL)
adamc@682 509 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682 510 else {
adamc@685 511 use_client(c);
adamc@682 512 ctx->client = c;
adamc@682 513
adamc@682 514 if (c->mode != USED)
adamc@682 515 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682 516 if (c->pass != pass)
adamc@682 517 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682 518 }
adamc@682 519 } else {
adamc@682 520 client *c = new_client();
adamc@685 521 use_client(c);
adamc@682 522 ctx->client = c;
adamc@682 523 }
adamc@682 524 }
adamc@682 525 }
adamc@682 526
adamc@671 527 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671 528 int r = setjmp(ctx->jmp_buf);
adamc@671 529
adamc@671 530 if (r == 0) {
adamc@671 531 if (uw_db_begin(ctx))
adamc@671 532 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682 533
adamc@671 534 uw_handle(ctx, path);
adamc@671 535 }
adamc@671 536
adamc@671 537 return r;
adamc@671 538 }
adamc@671 539
adamc@682 540 uw_Basis_client uw_Basis_self(uw_context ctx, uw_unit u) {
adamc@682 541 if (ctx->client == NULL)
adamc@682 542 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682 543
adamc@682 544 return ctx->client->id;
adamc@682 545 }
adamc@682 546
adamc@425 547 void uw_pop_cleanup(uw_context ctx) {
adamc@425 548 if (ctx->cleanup_front == ctx->cleanup)
adamc@425 549 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425 550
adamc@425 551 --ctx->cleanup_front;
adamc@425 552 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425 553 }
adamc@425 554
adamc@311 555 char *uw_error_message(uw_context ctx) {
adamc@167 556 return ctx->error_message;
adamc@167 557 }
adamc@167 558
adamc@737 559 extern int uw_input_num(const char*);
adamc@144 560
adamc@737 561 void uw_set_input(uw_context ctx, const char *name, char *value) {
adamc@311 562 int n = uw_input_num(name);
adamc@144 563
adamc@169 564 if (n < 0)
adamc@311 565 uw_error(ctx, FATAL, "Bad input name %s", name);
adamc@144 566
adamc@311 567 if (n >= uw_inputs_len)
adamc@311 568 uw_error(ctx, FATAL, "For input name %s, index %d is out of range", name, n);
adamc@169 569
adamc@737 570 ctx->inputs[n].kind = NORMAL;
adamc@737 571 ctx->inputs[n].data.normal = value;
adamc@144 572 }
adamc@144 573
adamc@311 574 char *uw_get_input(uw_context ctx, int n) {
adamc@169 575 if (n < 0)
adamc@311 576 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 577 if (n >= uw_inputs_len)
adamc@311 578 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 579
adamc@737 580 switch (ctx->inputs[n].kind) {
adamc@737 581 case UNSET:
adamc@737 582 return NULL;
adamc@737 583 case FILES:
adamc@737 584 uw_error(ctx, FATAL, "Tried to read a files form input as normal");
adamc@737 585 case NORMAL:
adamc@737 586 return ctx->inputs[n].data.normal;
adamc@737 587 default:
adamc@737 588 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 589 }
adamc@138 590 }
adamc@138 591
adamc@311 592 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190 593 if (n < 0)
adamc@311 594 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311 595 if (n >= uw_inputs_len)
adamc@311 596 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737 597
adamc@737 598 switch (ctx->inputs[n].kind) {
adamc@737 599 case UNSET:
adamc@737 600 return "";
adamc@737 601 case FILES:
adamc@737 602 uw_error(ctx, FATAL, "Tried to read a files form input as normal");
adamc@737 603 case NORMAL:
adamc@737 604 return ctx->inputs[n].data.normal;
adamc@737 605 default:
adamc@737 606 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 607 }
adamc@737 608 }
adamc@737 609
adamc@737 610 void uw_set_file_input(uw_context ctx, const char *name, uw_Basis_files fs) {
adamc@737 611 int n = uw_input_num(name);
adamc@737 612
adamc@737 613 if (n < 0)
adamc@737 614 uw_error(ctx, FATAL, "Bad file input name %s", name);
adamc@737 615
adamc@737 616 if (n >= uw_inputs_len)
adamc@737 617 uw_error(ctx, FATAL, "For file input name %s, index %d is out of range", name, n);
adamc@737 618
adamc@737 619 ctx->inputs[n].kind = FILES;
adamc@737 620 ctx->inputs[n].data.files = fs;
adamc@737 621 }
adamc@737 622
adamc@737 623 uw_Basis_files uw_get_file_input(uw_context ctx, int n) {
adamc@737 624 if (n < 0)
adamc@737 625 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@737 626 if (n >= uw_inputs_len)
adamc@737 627 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737 628
adamc@737 629 switch (ctx->inputs[n].kind) {
adamc@737 630 case UNSET:
adamc@737 631 {
adamc@737 632 uw_Basis_files fs = {};
adamc@737 633 return fs;
adamc@737 634 }
adamc@737 635 case FILES:
adamc@737 636 return ctx->inputs[n].data.files;
adamc@737 637 case NORMAL:
adamc@737 638 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@737 639 default:
adamc@737 640 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737 641 }
adamc@190 642 }
adamc@190 643
adamc@643 644 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643 645 ctx->script_header = s;
adamc@643 646 }
adamc@643 647
adamc@667 648 void uw_set_url_prefix(uw_context ctx, const char *s) {
adamc@667 649 ctx->url_prefix = s;
adamc@667 650 }
adamc@667 651
adamc@693 652 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693 653 ctx->needs_push = n;
adamc@693 654 }
adamc@693 655
adamc@736 656 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736 657 ctx->needs_sig = n;
adamc@736 658 }
adamc@736 659
adamc@667 660
adamc@667 661 static void buf_check_ctx(uw_context ctx, buf *b, size_t extra, const char *desc) {
adamc@666 662 if (b->back - b->front < extra) {
adamc@666 663 size_t desired = b->front - b->start + extra, next;
adamc@136 664 char *new_heap;
adamc@136 665
adamc@666 666 next = b->back - b->start;
adamc@317 667 if (next == 0)
adamc@317 668 next = 1;
adamc@317 669 for (; next < desired; next *= 2);
adamc@136 670
adamc@666 671 new_heap = realloc(b->start, next);
adamc@666 672 b->front = new_heap + (b->front - b->start);
adamc@666 673 b->back = new_heap + next;
adamc@136 674
adamc@667 675 if (new_heap != b->start) {
adamc@666 676 b->start = new_heap;
adamc@666 677 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136 678 }
adamc@136 679
adamc@666 680 b->start = new_heap;
adamc@136 681 }
adamc@136 682 }
adamc@136 683
adamc@666 684 static void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667 685 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666 686 }
adamc@666 687
adamc@311 688 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136 689 void *result;
adamc@136 690
adamc@311 691 uw_check_heap(ctx, len);
adamc@136 692
adamc@666 693 result = ctx->heap.front;
adamc@666 694 ctx->heap.front += len;
adamc@136 695 return result;
adamc@117 696 }
adamc@117 697
adamc@323 698 void uw_begin_region(uw_context ctx) {
adamc@666 699 regions *r = (regions *) ctx->heap.front;
adamc@323 700
adamc@323 701 uw_check_heap(ctx, sizeof(regions));
adamc@323 702
adamc@666 703 ctx->heap.front += sizeof(regions);
adamc@323 704
adamc@323 705 r->next = ctx->regions;
adamc@323 706 ctx->regions = r;
adamc@323 707 }
adamc@323 708
adamc@323 709 void uw_end_region(uw_context ctx) {
adamc@323 710 regions *r = ctx->regions;
adamc@323 711
adamc@323 712 if (r == NULL)
adamc@323 713 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323 714
adamc@666 715 ctx->heap.front = (char *) r;
adamc@323 716 ctx->regions = r->next;
adamc@323 717 }
adamc@323 718
adamc@324 719 void uw_memstats(uw_context ctx) {
adamc@666 720 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666 721 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666 722 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666 723 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324 724 }
adamc@324 725
adamc@311 726 int uw_send(uw_context ctx, int sock) {
adamc@666 727 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462 728
adamc@462 729 if (n < 0)
adamc@462 730 return n;
adamc@462 731
adamc@462 732 n = uw_really_send(sock, "\r\n", 2);
adamc@462 733
adamc@462 734 if (n < 0)
adamc@462 735 return n;
adamc@462 736
adamc@666 737 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462 738 }
adamc@462 739
adamc@462 740 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667 741 buf_check(&ctx->outHeaders, extra);
adamc@462 742 }
adamc@462 743
adamc@462 744 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462 745 int len = strlen(s);
adamc@462 746
adamc@462 747 uw_check_headers(ctx, len + 1);
adamc@666 748 strcpy(ctx->outHeaders.front, s);
adamc@666 749 ctx->outHeaders.front += len;
adamc@562 750 }
adamc@562 751
adamc@562 752 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667 753 buf_check(&ctx->script, extra);
adamc@562 754 }
adamc@562 755
adamc@562 756 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562 757 int len = strlen(s);
adamc@562 758
adamc@562 759 uw_check_script(ctx, len + 1);
adamc@666 760 strcpy(ctx->script.front, s);
adamc@666 761 ctx->script.front += len;
adamc@562 762 }
adamc@562 763
adamc@645 764 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@667 765 if (ctx->script_header[0] == 0)
adamc@667 766 return "";
adamc@696 767 else if (buf_used(&ctx->script) == 0)
adamc@696 768 return ctx->script_header;
adamc@667 769 else {
adamc@695 770 char *r = uw_malloc(ctx, strlen(ctx->script_header) + 42 + buf_used(&ctx->script));
adamc@695 771 sprintf(r, "%s<script type=\"text/javascript\">%s</script>",
adamc@673 772 ctx->script_header,
adamc@673 773 ctx->script.start);
adamc@565 774 return r;
adamc@565 775 }
adamc@565 776 }
adamc@565 777
adamc@695 778 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695 779 if (s[0] == 0)
adamc@695 780 return "";
adamc@695 781 else {
adamc@695 782 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695 783 sprintf(r, " onload='%s'", s);
adamc@695 784 return r;
adamc@695 785 }
adamc@695 786 }
adamc@695 787
adamc@736 788 extern uw_Basis_string uw_cookie_sig(uw_context);
adamc@736 789
adamc@694 790 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736 791 if (ctx->client == NULL) {
adamc@736 792 if (ctx->needs_sig) {
adamc@736 793 char *sig = uw_cookie_sig(ctx);
adamc@736 794 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736 795 sprintf(r, "sig=\"%s\";", sig);
adamc@736 796 return r;
adamc@736 797 }
adamc@736 798 else
adamc@736 799 return "";
adamc@736 800 } else {
adamc@736 801 char *sig = ctx->needs_sig ? uw_cookie_sig(ctx) : "";
adamc@736 802 char *r = uw_malloc(ctx, 59 + 3 * INTS_MAX + strlen(ctx->url_prefix)
adamc@736 803 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736 804 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682 805 ctx->client->id,
adamc@682 806 ctx->client->pass,
adamc@679 807 ctx->url_prefix,
adamc@736 808 ctx->timeout,
adamc@736 809 ctx->needs_sig ? "sig=\"" : "",
adamc@736 810 sig,
adamc@736 811 ctx->needs_sig ? "\";" : "");
adamc@679 812 return r;
adamc@668 813 }
adamc@667 814 }
adamc@667 815
adamc@574 816 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574 817 char *r, *s2;
adamc@574 818
adamc@574 819 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574 820
adamc@666 821 r = s2 = ctx->heap.front;
adamc@574 822 *s2++ = '"';
adamc@574 823
adamc@574 824 for (; *s; s++) {
adamc@574 825 char c = *s;
adamc@574 826
adamc@574 827 switch (c) {
adamc@574 828 case '"':
adamc@574 829 strcpy(s2, "\\\"");
adamc@574 830 s2 += 2;
adamc@574 831 break;
adamc@574 832 case '\\':
adamc@574 833 strcpy(s2, "\\\\");
adamc@574 834 s2 += 2;
adamc@574 835 break;
adamc@574 836 default:
adamc@574 837 if (isprint(c))
adamc@574 838 *s2++ = c;
adamc@574 839 else {
adamc@574 840 sprintf(s2, "\\%3o", c);
adamc@574 841 s2 += 4;
adamc@574 842 }
adamc@574 843 }
adamc@574 844 }
adamc@574 845
adamc@574 846 strcpy(s2, "\"");
adamc@666 847 ctx->heap.front = s2 + 1;
adamc@574 848 return r;
adamc@574 849 }
adamc@574 850
adamc@574 851 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574 852 char *r, *s2;
adamc@574 853
adamc@574 854 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574 855
adamc@666 856 r = s2 = ctx->script.front;
adamc@574 857 *s2++ = '"';
adamc@574 858
adamc@574 859 for (; *s; s++) {
adamc@574 860 char c = *s;
adamc@574 861
adamc@574 862 switch (c) {
adamc@577 863 case '\'':
adamc@574 864 strcpy(s2, "\\\"");
adamc@574 865 s2 += 2;
adamc@574 866 break;
adamc@574 867 case '\\':
adamc@574 868 strcpy(s2, "\\\\");
adamc@574 869 s2 += 2;
adamc@574 870 break;
adamc@574 871 default:
adamc@574 872 if (isprint(c))
adamc@574 873 *s2++ = c;
adamc@574 874 else {
adamc@574 875 sprintf(s2, "\\%3o", c);
adamc@574 876 s2 += 4;
adamc@574 877 }
adamc@574 878 }
adamc@574 879 }
adamc@574 880
adamc@574 881 strcpy(s2, "\"");
adamc@666 882 ctx->script.front = s2 + 1;
adamc@574 883 return r;
adamc@574 884 }
adamc@574 885
adamc@682 886 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 887 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 888 return "null";
adamc@682 889 else {
adamc@682 890 int len;
adamc@682 891 char *r;
adamc@682 892
adamc@682 893 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 894 r = ctx->heap.front;
adamc@682 895 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 896 ctx->heap.front += len+1;
adamc@682 897 return r;
adamc@682 898 }
adamc@682 899 }
adamc@682 900
adamc@577 901 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577 902 int len;
adamc@577 903 size_t s_len = strlen(s);
adamc@562 904
adamc@577 905 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@666 906 sprintf(ctx->script.front, "var s%d=sc(%n", ctx->source_count, &len);
adamc@666 907 ctx->script.front += len;
adamc@666 908 strcpy(ctx->script.front, s);
adamc@666 909 ctx->script.front += s_len;
adamc@666 910 strcpy(ctx->script.front, ");");
adamc@666 911 ctx->script.front += 2;
adamc@562 912
adamc@565 913 return ctx->source_count++;
adamc@117 914 }
adamc@117 915
adamc@577 916 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577 917 int len;
adamc@577 918 size_t s_len = strlen(s);
adamc@577 919
adamc@577 920 uw_check_script(ctx, 6 + INTS_MAX + s_len);
adamc@666 921 sprintf(ctx->script.front, "s%d.v=%n", (int)n, &len);
adamc@666 922 ctx->script.front += len;
adamc@666 923 strcpy(ctx->script.front, s);
adamc@666 924 ctx->script.front += s_len;
adamc@666 925 strcpy(ctx->script.front, ";");
adamc@666 926 ctx->script.front++;
adamc@577 927
adamc@577 928 return uw_unit_v;
adamc@577 929 }
adamc@577 930
adamc@311 931 static void uw_check(uw_context ctx, size_t extra) {
adamc@667 932 buf_check(&ctx->page, extra);
adamc@117 933 }
adamc@117 934
adamc@311 935 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666 936 *(ctx->page.front)++ = c;
adamc@117 937 }
adamc@117 938
adamc@311 939 void uw_writec(uw_context ctx, char c) {
adamc@311 940 uw_check(ctx, 1);
adamc@311 941 uw_writec_unsafe(ctx, c);
adamc@117 942 }
adamc@117 943
adamc@311 944 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117 945 int len = strlen(s);
adamc@666 946 memcpy(ctx->page.front, s, len);
adamc@666 947 ctx->page.front += len;
adamc@117 948 }
adamc@117 949
adamc@311 950 void uw_write(uw_context ctx, const char* s) {
adamc@311 951 uw_check(ctx, strlen(s) + 1);
adamc@311 952 uw_write_unsafe(ctx, s);
adamc@666 953 *ctx->page.front = 0;
adamc@102 954 }
adamc@106 955
adamc@311 956 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136 957 char *result;
adamc@136 958 int len;
adamc@311 959 uw_check_heap(ctx, INTS_MAX);
adamc@666 960 result = ctx->heap.front;
adamc@276 961 sprintf(result, "%lld%n", n, &len);
adamc@666 962 ctx->heap.front += len+1;
adamc@136 963 return result;
adamc@106 964 }
adamc@106 965
adamc@311 966 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136 967 char *result;
adamc@136 968 int len;
adamc@311 969 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 970 result = ctx->heap.front;
adamc@136 971 sprintf(result, "%g%n", n, &len);
adamc@666 972 ctx->heap.front += len+1;
adamc@136 973 return result;
adamc@106 974 }
adamc@106 975
adamc@311 976 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136 977 int len = strlen(s);
adamc@136 978 char *result, *p;
adamc@311 979 uw_check_heap(ctx, len * 6 + 1);
adamc@136 980
adamc@666 981 result = p = ctx->heap.front;
adamc@136 982
adamc@136 983 for (; *s; s++) {
adamc@136 984 char c = *s;
adamc@136 985
adamc@136 986 if (c == '"') {
adamc@136 987 strcpy(p, "&quot;");
adamc@136 988 p += 6;
adamc@136 989 } else if (c == '&') {
adamc@136 990 strcpy(p, "&amp;");
adamc@136 991 p += 5;
adamc@136 992 }
adamc@136 993 else if (isprint(c))
adamc@136 994 *p++ = c;
adamc@136 995 else {
adamc@136 996 int len2;
adamc@136 997 sprintf(p, "&#%d;%n", c, &len2);
adamc@136 998 p += len2;
adamc@136 999 }
adamc@136 1000 }
adamc@136 1001
adamc@137 1002 *p++ = 0;
adamc@666 1003 ctx->heap.front = p;
adamc@136 1004 return result;
adamc@106 1005 }
adamc@106 1006
adamc@721 1007 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721 1008 return s;
adamc@721 1009 }
adamc@721 1010
adamc@311 1011 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117 1012 int len;
adamc@117 1013
adamc@666 1014 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1015 ctx->page.front += len;
adamc@106 1016 }
adamc@106 1017
adamc@428 1018 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1019 uw_check(ctx, INTS_MAX);
adamc@311 1020 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428 1021
adamc@428 1022 return uw_unit_v;
adamc@106 1023 }
adamc@106 1024
adamc@428 1025 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117 1026 int len;
adamc@117 1027
adamc@311 1028 uw_check(ctx, FLOATS_MAX);
adamc@666 1029 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1030 ctx->page.front += len;
adamc@428 1031
adamc@428 1032 return uw_unit_v;
adamc@117 1033 }
adamc@117 1034
adamc@428 1035 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1036 uw_check(ctx, strlen(s) * 6);
adamc@117 1037
adamc@106 1038 for (; *s; s++) {
adamc@106 1039 char c = *s;
adamc@106 1040
adamc@106 1041 if (c == '"')
adamc@311 1042 uw_write_unsafe(ctx, "&quot;");
adamc@136 1043 else if (c == '&')
adamc@311 1044 uw_write_unsafe(ctx, "&amp;");
adamc@106 1045 else if (isprint(c))
adamc@311 1046 uw_writec_unsafe(ctx, c);
adamc@106 1047 else {
adamc@311 1048 uw_write_unsafe(ctx, "&#");
adamc@311 1049 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1050 uw_writec_unsafe(ctx, ';');
adamc@106 1051 }
adamc@106 1052 }
adamc@428 1053
adamc@428 1054 return uw_unit_v;
adamc@106 1055 }
adamc@120 1056
adamc@120 1057
adamc@311 1058 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137 1059 int len;
adamc@137 1060 char *r;
adamc@137 1061
adamc@311 1062 uw_check_heap(ctx, INTS_MAX);
adamc@666 1063 r = ctx->heap.front;
adamc@276 1064 sprintf(r, "%lld%n", n, &len);
adamc@666 1065 ctx->heap.front += len+1;
adamc@137 1066 return r;
adamc@120 1067 }
adamc@120 1068
adamc@682 1069 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1070 if (ctx->client == NULL || chn.cli != ctx->client->id)
adamc@682 1071 return "";
adamc@682 1072 else {
adamc@682 1073 int len;
adamc@682 1074 char *r;
adamc@679 1075
adamc@682 1076 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1077 r = ctx->heap.front;
adamc@682 1078 sprintf(r, "%u%n", chn.chn, &len);
adamc@682 1079 ctx->heap.front += len+1;
adamc@682 1080 return r;
adamc@682 1081 }
adamc@679 1082 }
adamc@679 1083
adamc@311 1084 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137 1085 int len;
adamc@137 1086 char *r;
adamc@137 1087
adamc@311 1088 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1089 r = ctx->heap.front;
adamc@137 1090 sprintf(r, "%g%n", n, &len);
adamc@666 1091 ctx->heap.front += len+1;
adamc@137 1092 return r;
adamc@120 1093 }
adamc@120 1094
adamc@311 1095 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1096 char *r, *p;
adamc@137 1097
adamc@311 1098 uw_check_heap(ctx, strlen(s) * 3 + 1);
adamc@137 1099
adamc@666 1100 for (r = p = ctx->heap.front; *s; s++) {
adamc@137 1101 char c = *s;
adamc@137 1102
adamc@137 1103 if (c == ' ')
adamc@137 1104 *p++ = '+';
adamc@137 1105 else if (isalnum(c))
adamc@137 1106 *p++ = c;
adamc@137 1107 else {
adamc@137 1108 sprintf(p, "%%%02X", c);
adamc@137 1109 p += 3;
adamc@137 1110 }
adamc@137 1111 }
adamc@137 1112
adamc@137 1113 *p++ = 0;
adamc@666 1114 ctx->heap.front = p;
adamc@137 1115 return r;
adamc@120 1116 }
adamc@120 1117
adamc@311 1118 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1119 if (b == uw_Basis_False)
adamc@186 1120 return "0";
adamc@186 1121 else
adamc@186 1122 return "1";
adamc@186 1123 }
adamc@186 1124
adamc@311 1125 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120 1126 int len;
adamc@120 1127
adamc@666 1128 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1129 ctx->page.front += len;
adamc@120 1130 }
adamc@120 1131
adamc@428 1132 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311 1133 uw_check(ctx, INTS_MAX);
adamc@311 1134 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428 1135
adamc@428 1136 return uw_unit_v;
adamc@120 1137 }
adamc@120 1138
adamc@682 1139 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1140 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682 1141 int len;
adamc@682 1142
adamc@682 1143 uw_check(ctx, INTS_MAX + 1);
adamc@682 1144 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682 1145 ctx->page.front += len;
adamc@682 1146 }
adamc@682 1147
adamc@679 1148 return uw_unit_v;
adamc@679 1149 }
adamc@679 1150
adamc@428 1151 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120 1152 int len;
adamc@120 1153
adamc@311 1154 uw_check(ctx, FLOATS_MAX);
adamc@666 1155 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1156 ctx->page.front += len;
adamc@428 1157
adamc@428 1158 return uw_unit_v;
adamc@120 1159 }
adamc@120 1160
adamc@488 1161 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488 1162 return uw_Basis_urlifyInt(ctx, t);
adamc@488 1163 }
adamc@488 1164
adamc@428 1165 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311 1166 uw_check(ctx, strlen(s) * 3);
adamc@120 1167
adamc@120 1168 for (; *s; s++) {
adamc@120 1169 char c = *s;
adamc@120 1170
adamc@120 1171 if (c == ' ')
adamc@311 1172 uw_writec_unsafe(ctx, '+');
adamc@120 1173 else if (isalnum(c))
adamc@311 1174 uw_writec_unsafe(ctx, c);
adamc@120 1175 else {
adamc@666 1176 sprintf(ctx->page.front, "%%%02X", c);
adamc@666 1177 ctx->page.front += 3;
adamc@120 1178 }
adamc@120 1179 }
adamc@428 1180
adamc@428 1181 return uw_unit_v;
adamc@120 1182 }
adamc@120 1183
adamc@428 1184 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1185 if (b == uw_Basis_False)
adamc@311 1186 uw_writec(ctx, '0');
adamc@186 1187 else
adamc@311 1188 uw_writec(ctx, '1');
adamc@428 1189
adamc@428 1190 return uw_unit_v;
adamc@186 1191 }
adamc@186 1192
adamc@120 1193
adamc@311 1194 static char *uw_unurlify_advance(char *s) {
adamc@144 1195 char *new_s = strchr(s, '/');
adamc@120 1196
adamc@120 1197 if (new_s)
adamc@120 1198 *new_s++ = 0;
adamc@120 1199 else
adamc@144 1200 new_s = strchr(s, 0);
adamc@144 1201
adamc@144 1202 return new_s;
adamc@144 1203 }
adamc@144 1204
adamc@311 1205 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311 1206 char *new_s = uw_unurlify_advance(*s);
adamc@311 1207 uw_Basis_int r;
adamc@120 1208
adamc@276 1209 r = atoll(*s);
adamc@120 1210 *s = new_s;
adamc@120 1211 return r;
adamc@120 1212 }
adamc@120 1213
adamc@311 1214 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311 1215 char *new_s = uw_unurlify_advance(*s);
adamc@311 1216 uw_Basis_float r;
adamc@120 1217
adamc@120 1218 r = atof(*s);
adamc@120 1219 *s = new_s;
adamc@120 1220 return r;
adamc@120 1221 }
adamc@120 1222
adamc@488 1223 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488 1224 return uw_Basis_unurlifyInt(ctx, s);
adamc@488 1225 }
adamc@488 1226
adamc@311 1227 static uw_Basis_string uw_unurlifyString_to(uw_context ctx, char *r, char *s) {
adamc@144 1228 char *s1, *s2;
adamc@144 1229 int n;
adamc@136 1230
adamc@144 1231 for (s1 = r, s2 = s; *s2; ++s1, ++s2) {
adamc@136 1232 char c = *s2;
adamc@136 1233
adamc@136 1234 switch (c) {
adamc@136 1235 case '+':
adamc@136 1236 *s1 = ' ';
adamc@136 1237 break;
adamc@136 1238 case '%':
adamc@169 1239 if (s2[1] == 0)
adamc@311 1240 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169 1241 if (s2[2] == 0)
adamc@311 1242 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169 1243 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311 1244 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136 1245 *s1 = n;
adamc@136 1246 s2 += 2;
adamc@136 1247 break;
adamc@136 1248 default:
adamc@136 1249 *s1 = c;
adamc@136 1250 }
adamc@136 1251 }
adamc@136 1252 *s1++ = 0;
adamc@144 1253 return s1;
adamc@144 1254 }
adamc@144 1255
adamc@311 1256 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311 1257 char *new_s = uw_unurlify_advance(*s);
adamc@311 1258 uw_Basis_bool r;
adamc@186 1259
adamc@186 1260 if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311 1261 r = uw_Basis_False;
adamc@186 1262 else
adamc@311 1263 r = uw_Basis_True;
adamc@186 1264
adamc@186 1265 *s = new_s;
adamc@186 1266 return r;
adamc@186 1267 }
adamc@186 1268
adamc@311 1269 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311 1270 char *new_s = uw_unurlify_advance(*s);
adamc@144 1271 char *r, *s1, *s2;
adamc@144 1272 int len, n;
adamc@144 1273
adamc@200 1274 len = strlen(*s);
adamc@311 1275 uw_check_heap(ctx, len + 1);
adamc@144 1276
adamc@666 1277 r = ctx->heap.front;
adamc@666 1278 ctx->heap.front = uw_unurlifyString_to(ctx, ctx->heap.front, *s);
adamc@136 1279 *s = new_s;
adamc@136 1280 return r;
adamc@120 1281 }
adamc@135 1282
adamc@135 1283
adamc@311 1284 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286 1285 int len;
adamc@286 1286 char *r;
adamc@286 1287
adamc@311 1288 uw_check_heap(ctx, INTS_MAX);
adamc@666 1289 r = ctx->heap.front;
adamc@286 1290 sprintf(r, "%lld%n", n, &len);
adamc@666 1291 ctx->heap.front += len+1;
adamc@286 1292 return r;
adamc@286 1293 }
adamc@286 1294
adamc@428 1295 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286 1296 int len;
adamc@286 1297
adamc@311 1298 uw_check(ctx, INTS_MAX);
adamc@666 1299 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666 1300 ctx->page.front += len;
adamc@428 1301
adamc@428 1302 return uw_unit_v;
adamc@286 1303 }
adamc@286 1304
adamc@311 1305 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286 1306 int len;
adamc@286 1307 char *r;
adamc@286 1308
adamc@311 1309 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1310 r = ctx->heap.front;
adamc@286 1311 sprintf(r, "%g%n", n, &len);
adamc@666 1312 ctx->heap.front += len+1;
adamc@286 1313 return r;
adamc@286 1314 }
adamc@286 1315
adamc@428 1316 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286 1317 int len;
adamc@286 1318
adamc@311 1319 uw_check(ctx, FLOATS_MAX);
adamc@666 1320 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666 1321 ctx->page.front += len;
adamc@428 1322
adamc@428 1323 return uw_unit_v;
adamc@286 1324 }
adamc@286 1325
adamc@311 1326 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137 1327 char *r, *s2;
adamc@137 1328
adamc@311 1329 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137 1330
adamc@666 1331 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@137 1332 char c = *s;
adamc@137 1333
adamc@137 1334 switch (c) {
adamc@137 1335 case '<':
adamc@137 1336 strcpy(s2, "&lt;");
adamc@137 1337 s2 += 4;
adamc@137 1338 break;
adamc@137 1339 case '&':
adamc@137 1340 strcpy(s2, "&amp;");
adamc@137 1341 s2 += 5;
adamc@137 1342 break;
adamc@137 1343 default:
adamc@137 1344 if (isprint(c))
adamc@137 1345 *s2++ = c;
adamc@137 1346 else {
adamc@137 1347 int len2;
adamc@137 1348 sprintf(s2, "&#%d;%n", c, &len2);
adamc@137 1349 s2 += len2;
adamc@137 1350 }
adamc@137 1351 }
adamc@137 1352 }
adamc@137 1353
adamc@137 1354 *s2++ = 0;
adamc@666 1355 ctx->heap.front = s2;
adamc@137 1356 return r;
adamc@135 1357 }
adamc@135 1358
adamc@428 1359 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321 1360 uw_check(ctx, strlen(s) * 6);
adamc@135 1361
adamc@135 1362 for (; *s; s++) {
adamc@135 1363 char c = *s;
adamc@135 1364
adamc@135 1365 switch (c) {
adamc@135 1366 case '<':
adamc@311 1367 uw_write_unsafe(ctx, "&lt;");
adamc@135 1368 break;
adamc@135 1369 case '&':
adamc@311 1370 uw_write_unsafe(ctx, "&amp;");
adamc@135 1371 break;
adamc@135 1372 default:
adamc@135 1373 if (isprint(c))
adamc@311 1374 uw_writec_unsafe(ctx, c);
adamc@135 1375 else {
adamc@311 1376 uw_write_unsafe(ctx, "&#");
adamc@311 1377 uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311 1378 uw_writec_unsafe(ctx, ';');
adamc@135 1379 }
adamc@135 1380 }
adamc@135 1381 }
adamc@428 1382
adamc@428 1383 return uw_unit_v;
adamc@135 1384 }
adamc@180 1385
adamc@311 1386 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1387 if (b == uw_Basis_False)
adamc@286 1388 return "False";
adamc@286 1389 else
adamc@286 1390 return "True";
adamc@286 1391 }
adamc@286 1392
adamc@428 1393 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311 1394 if (b == uw_Basis_False) {
adamc@311 1395 uw_check(ctx, 6);
adamc@666 1396 strcpy(ctx->page.front, "False");
adamc@666 1397 ctx->page.front += 5;
adamc@286 1398 } else {
adamc@311 1399 uw_check(ctx, 5);
adamc@666 1400 strcpy(ctx->page.front, "True");
adamc@666 1401 ctx->page.front += 4;
adamc@286 1402 }
adamc@428 1403
adamc@428 1404 return uw_unit_v;
adamc@286 1405 }
adamc@286 1406
adamc@436 1407 #define TIME_FMT "%x %X"
adamc@438 1408 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436 1409
adamc@436 1410 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436 1411 size_t len;
adamc@436 1412 char *r;
adamc@436 1413 struct tm stm;
adamc@436 1414
adamc@436 1415 if (localtime_r(&t, &stm)) {
adamc@436 1416 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1417 r = ctx->heap.front;
adamc@436 1418 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1419 ctx->heap.front += len+1;
adamc@436 1420 return r;
adamc@436 1421 } else
adamc@436 1422 return "<i>Invalid time</i>";
adamc@436 1423 }
adamc@436 1424
adamc@436 1425 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436 1426 size_t len;
adamc@436 1427 char *r;
adamc@436 1428 struct tm stm;
adamc@436 1429
adamc@436 1430 if (localtime_r(&t, &stm)) {
adamc@436 1431 uw_check(ctx, TIMES_MAX);
adamc@666 1432 r = ctx->page.front;
adamc@436 1433 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1434 ctx->page.front += len;
adamc@436 1435 } else {
adamc@436 1436 uw_check(ctx, 20);
adamc@666 1437 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666 1438 ctx->page.front += 19;
adamc@436 1439 }
adamc@436 1440
adamc@436 1441 return uw_unit_v;
adamc@436 1442 }
adamc@436 1443
adamc@311 1444 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@180 1445 int len = strlen(s1) + strlen(s2) + 1;
adamc@180 1446 char *s;
adamc@180 1447
adamc@311 1448 uw_check_heap(ctx, len);
adamc@180 1449
adamc@666 1450 s = ctx->heap.front;
adamc@180 1451
adamc@180 1452 strcpy(s, s1);
adamc@180 1453 strcat(s, s2);
adamc@666 1454 ctx->heap.front += len;
adamc@180 1455
adamc@180 1456 return s;
adamc@180 1457 }
adamc@278 1458
adamc@737 1459 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@278 1460 int len = strlen(s1) + 1;
adamc@278 1461 char *s;
adamc@278 1462
adamc@311 1463 uw_check_heap(ctx, len);
adamc@278 1464
adamc@666 1465 s = ctx->heap.front;
adamc@278 1466
adamc@278 1467 strcpy(s, s1);
adamc@666 1468 ctx->heap.front += len;
adamc@278 1469
adamc@278 1470 return s;
adamc@278 1471 }
adamc@280 1472
adamc@737 1473 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493 1474 if (s1)
adamc@737 1475 return uw_strdup(ctx, s1);
adamc@493 1476 else
adamc@493 1477 return NULL;
adamc@493 1478 }
adamc@493 1479
adamc@280 1480
adamc@311 1481 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281 1482 int len;
adamc@281 1483 char *r;
adamc@281 1484
adamc@311 1485 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666 1486 r = ctx->heap.front;
adamc@281 1487 sprintf(r, "%lld::int8%n", n, &len);
adamc@666 1488 ctx->heap.front += len+1;
adamc@281 1489 return r;
adamc@281 1490 }
adamc@281 1491
adamc@467 1492 char *uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int *n) {
adamc@467 1493 if (n == NULL)
adamc@467 1494 return "NULL";
adamc@467 1495 else
adamc@467 1496 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467 1497 }
adamc@467 1498
adamc@311 1499 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281 1500 int len;
adamc@281 1501 char *r;
adamc@281 1502
adamc@311 1503 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666 1504 r = ctx->heap.front;
adamc@281 1505 sprintf(r, "%g::float8%n", n, &len);
adamc@666 1506 ctx->heap.front += len+1;
adamc@281 1507 return r;
adamc@281 1508 }
adamc@281 1509
adamc@467 1510 char *uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float *n) {
adamc@467 1511 if (n == NULL)
adamc@467 1512 return "NULL";
adamc@467 1513 else
adamc@467 1514 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467 1515 }
adamc@467 1516
adamc@281 1517
adamc@311 1518 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280 1519 char *r, *s2;
adamc@280 1520
adamc@311 1521 uw_check_heap(ctx, strlen(s) * 2 + 10);
adamc@280 1522
adamc@666 1523 r = s2 = ctx->heap.front;
adamc@280 1524 *s2++ = 'E';
adamc@280 1525 *s2++ = '\'';
adamc@280 1526
adamc@280 1527 for (; *s; s++) {
adamc@280 1528 char c = *s;
adamc@280 1529
adamc@280 1530 switch (c) {
adamc@280 1531 case '\'':
adamc@280 1532 strcpy(s2, "\\'");
adamc@280 1533 s2 += 2;
adamc@280 1534 break;
adamc@280 1535 case '\\':
adamc@280 1536 strcpy(s2, "\\\\");
adamc@280 1537 s2 += 2;
adamc@280 1538 break;
adamc@280 1539 default:
adamc@280 1540 if (isprint(c))
adamc@280 1541 *s2++ = c;
adamc@280 1542 else {
adamc@737 1543 sprintf(s2, "\\%03o", c);
adamc@280 1544 s2 += 4;
adamc@280 1545 }
adamc@280 1546 }
adamc@280 1547 }
adamc@280 1548
adamc@281 1549 strcpy(s2, "'::text");
adamc@666 1550 ctx->heap.front = s2 + 8;
adamc@280 1551 return r;
adamc@280 1552 }
adamc@281 1553
adamc@737 1554 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737 1555 char *r, *s2;
adamc@737 1556 size_t i;
adamc@737 1557
adamc@737 1558 uw_check_heap(ctx, b.size * 5 + 11);
adamc@737 1559
adamc@737 1560 r = s2 = ctx->heap.front;
adamc@737 1561 *s2++ = 'E';
adamc@737 1562 *s2++ = '\'';
adamc@737 1563
adamc@737 1564 for (i = 0; i < b.size; ++i) {
adamc@737 1565 char c = b.data[i];
adamc@737 1566
adamc@737 1567 switch (c) {
adamc@737 1568 case '\'':
adamc@737 1569 strcpy(s2, "\\'");
adamc@737 1570 s2 += 2;
adamc@737 1571 break;
adamc@737 1572 case '\\':
adamc@737 1573 strcpy(s2, "\\\\\\\\");
adamc@737 1574 s2 += 4;
adamc@737 1575 break;
adamc@737 1576 default:
adamc@737 1577 if (isprint(c))
adamc@737 1578 *s2++ = c;
adamc@737 1579 else {
adamc@737 1580 sprintf(s2, "\\\\%03o", c);
adamc@737 1581 s2 += 5;
adamc@737 1582 }
adamc@737 1583 }
adamc@737 1584 }
adamc@737 1585
adamc@737 1586 strcpy(s2, "'::bytea");
adamc@737 1587 ctx->heap.front = s2 + 9;
adamc@737 1588 return r;
adamc@737 1589 }
adamc@737 1590
adamc@682 1591 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1592 int len;
adamc@682 1593 char *r;
adamc@682 1594 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 1595
adamc@682 1596 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 1597 r = ctx->heap.front;
adamc@682 1598 sprintf(r, "%lld::int8%n", combo, &len);
adamc@682 1599 ctx->heap.front += len+1;
adamc@682 1600 return r;
adamc@682 1601 }
adamc@682 1602
adamc@682 1603 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682 1604 int len;
adamc@682 1605 char *r;
adamc@682 1606 unsigned long long combo = ((unsigned long long)chn.cli << 32) | chn.chn;
adamc@682 1607
adamc@682 1608 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1609 r = ctx->heap.front;
adamc@682 1610 sprintf(r, "%lld%n", combo, &len);
adamc@682 1611 ctx->heap.front += len+1;
adamc@682 1612 return r;
adamc@682 1613 }
adamc@682 1614
adamc@682 1615 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 1616 int len;
adamc@682 1617 char *r;
adamc@682 1618
adamc@682 1619 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682 1620 r = ctx->heap.front;
adamc@682 1621 sprintf(r, "%u::int4%n", cli, &len);
adamc@682 1622 ctx->heap.front += len+1;
adamc@682 1623 return r;
adamc@682 1624 }
adamc@682 1625
adamc@682 1626 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682 1627 int len;
adamc@682 1628 char *r;
adamc@682 1629
adamc@682 1630 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682 1631 r = ctx->heap.front;
adamc@682 1632 sprintf(r, "%u%n", cli, &len);
adamc@682 1633 ctx->heap.front += len+1;
adamc@682 1634 return r;
adamc@682 1635 }
adamc@682 1636
adamc@467 1637 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467 1638 if (s == NULL)
adamc@467 1639 return "NULL";
adamc@467 1640 else
adamc@467 1641 return uw_Basis_sqlifyString(ctx, s);
adamc@467 1642 }
adamc@467 1643
adamc@311 1644 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311 1645 if (b == uw_Basis_False)
adamc@281 1646 return "FALSE";
adamc@281 1647 else
adamc@281 1648 return "TRUE";
adamc@281 1649 }
adamc@282 1650
adamc@467 1651 char *uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool *b) {
adamc@467 1652 if (b == NULL)
adamc@467 1653 return "NULL";
adamc@467 1654 else
adamc@467 1655 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467 1656 }
adamc@467 1657
adamc@439 1658 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439 1659 size_t len;
adamc@682 1660 char *r, *s;
adamc@682 1661 struct tm stm;
adamc@682 1662
adamc@682 1663 if (localtime_r(&t, &stm)) {
adamc@682 1664 s = uw_malloc(ctx, TIMES_MAX);
adamc@682 1665 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682 1666 r = uw_malloc(ctx, len + 14);
adamc@682 1667 sprintf(r, "'%s'::timestamp", s);
adamc@682 1668 return r;
adamc@682 1669 } else
adamc@682 1670 return "<Invalid time>";
adamc@682 1671 }
adamc@682 1672
adamc@682 1673 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682 1674 size_t len;
adamc@439 1675 char *r;
adamc@439 1676 struct tm stm;
adamc@439 1677
adamc@439 1678 if (localtime_r(&t, &stm)) {
adamc@439 1679 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1680 r = ctx->heap.front;
adamc@439 1681 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1682 ctx->heap.front += len+1;
adamc@439 1683 return r;
adamc@439 1684 } else
adamc@439 1685 return "<Invalid time>";
adamc@439 1686 }
adamc@439 1687
adamc@467 1688 char *uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time *t) {
adamc@467 1689 if (t == NULL)
adamc@467 1690 return "NULL";
adamc@467 1691 else
adamc@467 1692 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467 1693 }
adamc@467 1694
adamc@311 1695 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311 1696 static uw_Basis_int true = 1;
adamc@311 1697 static uw_Basis_int false = 0;
adamc@282 1698
adamc@311 1699 if (b == uw_Basis_False)
adamc@282 1700 return (char *)&false;
adamc@282 1701 else
adamc@282 1702 return (char *)&true;
adamc@282 1703 }
adamc@284 1704
adamc@311 1705 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284 1706 int len;
adamc@284 1707 char *r;
adamc@284 1708
adamc@311 1709 uw_check_heap(ctx, INTS_MAX);
adamc@666 1710 r = ctx->heap.front;
adamc@284 1711 sprintf(r, "%lld%n", n, &len);
adamc@666 1712 ctx->heap.front += len+1;
adamc@284 1713 return r;
adamc@284 1714 }
adamc@285 1715
adamc@311 1716 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285 1717 int len;
adamc@285 1718 char *r;
adamc@285 1719
adamc@311 1720 uw_check_heap(ctx, FLOATS_MAX);
adamc@666 1721 r = ctx->heap.front;
adamc@285 1722 sprintf(r, "%g%n", n, &len);
adamc@666 1723 ctx->heap.front += len+1;
adamc@285 1724 return r;
adamc@285 1725 }
adamc@285 1726
adamc@311 1727 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311 1728 if (b == uw_Basis_False)
adamc@285 1729 return "False";
adamc@285 1730 else
adamc@285 1731 return "True";
adamc@285 1732 }
adamc@288 1733
adamc@436 1734 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436 1735 size_t len;
adamc@436 1736 char *r;
adamc@436 1737 struct tm stm;
adamc@436 1738
adamc@436 1739 if (localtime_r(&t, &stm)) {
adamc@436 1740 uw_check_heap(ctx, TIMES_MAX);
adamc@666 1741 r = ctx->heap.front;
adamc@436 1742 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666 1743 ctx->heap.front += len+1;
adamc@436 1744 return r;
adamc@436 1745 } else
adamc@436 1746 return "<Invalid time>";
adamc@436 1747 }
adamc@288 1748
adamc@311 1749 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288 1750 char *endptr;
adamc@311 1751 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288 1752
adamc@288 1753 if (*s != '\0' && *endptr == '\0') {
adamc@311 1754 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288 1755 *r = n;
adamc@288 1756 return r;
adamc@288 1757 } else
adamc@288 1758 return NULL;
adamc@288 1759 }
adamc@289 1760
adamc@311 1761 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289 1762 char *endptr;
adamc@311 1763 uw_Basis_float n = strtod(s, &endptr);
adamc@289 1764
adamc@289 1765 if (*s != '\0' && *endptr == '\0') {
adamc@311 1766 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289 1767 *r = n;
adamc@289 1768 return r;
adamc@289 1769 } else
adamc@289 1770 return NULL;
adamc@289 1771 }
adamc@289 1772
adamc@311 1773 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311 1774 static uw_Basis_bool true = uw_Basis_True;
adamc@311 1775 static uw_Basis_bool false = uw_Basis_False;
adamc@289 1776
adamc@289 1777 if (!strcasecmp (s, "True"))
adamc@289 1778 return &true;
adamc@289 1779 else if (!strcasecmp (s, "False"))
adamc@289 1780 return &false;
adamc@289 1781 else
adamc@289 1782 return NULL;
adamc@289 1783 }
adamc@292 1784
adamc@436 1785 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438 1786 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 1787 struct tm stm;
adamc@436 1788
adamc@439 1789 if (dot) {
adamc@439 1790 *dot = 0;
adamc@439 1791 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 1792 *dot = '.';
adamc@439 1793 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1794 *r = mktime(&stm);
adamc@439 1795 return r;
adamc@439 1796 }
adamc@439 1797 else {
adamc@439 1798 *dot = '.';
adamc@439 1799 return NULL;
adamc@439 1800 }
adamc@436 1801 }
adamc@439 1802 else {
adamc@439 1803 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439 1804 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1805 *r = mktime(&stm);
adamc@439 1806 return r;
adamc@439 1807 }
adamc@439 1808 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439 1809 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439 1810 *r = mktime(&stm);
adamc@439 1811 return r;
adamc@439 1812 }
adamc@439 1813 else
adamc@439 1814 return NULL;
adamc@439 1815 }
adamc@436 1816 }
adamc@436 1817
adamc@311 1818 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292 1819 char *endptr;
adamc@311 1820 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292 1821
adamc@292 1822 if (*s != '\0' && *endptr == '\0')
adamc@292 1823 return n;
adamc@292 1824 else
adamc@311 1825 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292 1826 }
adamc@293 1827
adamc@682 1828 #include <errno.h>
adamc@682 1829
adamc@678 1830 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682 1831 unsigned long long n;
adamc@682 1832
adamc@682 1833 if (sscanf(s, "%llu", &n) < 1)
adamc@682 1834 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682 1835 else {
adamc@682 1836 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682 1837 return ch;
adamc@682 1838 }
adamc@682 1839 }
adamc@682 1840
adamc@682 1841 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678 1842 char *endptr;
adamc@682 1843 unsigned long n = strtoul(s, &endptr, 10);
adamc@678 1844
adamc@678 1845 if (*s != '\0' && *endptr == '\0')
adamc@678 1846 return n;
adamc@678 1847 else
adamc@682 1848 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678 1849 }
adamc@678 1850
adamc@311 1851 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293 1852 char *endptr;
adamc@311 1853 uw_Basis_float n = strtod(s, &endptr);
adamc@293 1854
adamc@293 1855 if (*s != '\0' && *endptr == '\0')
adamc@293 1856 return n;
adamc@293 1857 else
adamc@311 1858 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293 1859 }
adamc@293 1860
adamc@311 1861 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296 1862 if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311 1863 return uw_Basis_True;
adamc@296 1864 else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311 1865 return uw_Basis_False;
adamc@293 1866 else
adamc@311 1867 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293 1868 }
adamc@436 1869
adamc@436 1870 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438 1871 char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436 1872 struct tm stm = {};
adamc@436 1873
adamc@438 1874 if (dot) {
adamc@438 1875 *dot = 0;
adamc@438 1876 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438 1877 *dot = '.';
adamc@438 1878 return mktime(&stm);
adamc@438 1879 }
adamc@438 1880 else {
adamc@438 1881 *dot = '.';
adamc@438 1882 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 1883 }
adamc@438 1884 }
adamc@438 1885 else {
adamc@439 1886 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439 1887 return mktime(&stm);
adamc@439 1888 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438 1889 return mktime(&stm);
adamc@438 1890 else
adamc@438 1891 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438 1892 }
adamc@436 1893 }
adamc@457 1894
adamc@463 1895 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463 1896 int len = strlen(c);
adamc@666 1897 char *s = ctx->headers, *p = ctx->outHeaders.start;
adamc@474 1898
adamc@474 1899 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474 1900 char *p2;
adamc@474 1901 p += 13;
adamc@474 1902 p2 = strchr(p, '=');
adamc@474 1903
adamc@474 1904 if (p2) {
adamc@474 1905 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474 1906
adamc@474 1907 if (!strncasecmp(p, c, p2 - p)) {
adamc@474 1908 char *ret = uw_malloc(ctx, sz + 1);
adamc@474 1909 memcpy(ret, p2+1, sz);
adamc@474 1910 ret[sz] = 0;
adamc@474 1911 return ret;
adamc@474 1912 }
adamc@474 1913 }
adamc@474 1914 }
adamc@463 1915
adamc@463 1916 while (p = strchr(s, ':')) {
adamc@476 1917 if (!strncasecmp(s, "Cookie: ", 8)) {
adamc@476 1918 p += 2;
adamc@476 1919 while (1) {
adamc@476 1920 if (!strncmp(p, c, len)
adamc@476 1921 && p + len < ctx->headers_end && p[len] == '=')
adamc@476 1922 return p + 1 + len;
adamc@476 1923 else if (p = strchr(p, ';'))
adamc@476 1924 p += 2;
adamc@476 1925 else if ((s = strchr(s, 0)) && s < ctx->headers_end) {
adamc@476 1926 s += 2;
adamc@476 1927 break;
adamc@476 1928 }
adamc@476 1929 else
adamc@476 1930 return NULL;
adamc@476 1931 }
adamc@463 1932 } else {
adamc@463 1933 if ((s = strchr(p, 0)) && s < ctx->headers_end)
adamc@463 1934 s += 2;
adamc@463 1935 else
adamc@463 1936 return NULL;
adamc@463 1937 }
adamc@463 1938 }
adamc@457 1939 }
adamc@462 1940
adamc@466 1941 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v) {
adamc@462 1942 uw_write_header(ctx, "Set-Cookie: ");
adamc@462 1943 uw_write_header(ctx, c);
adamc@462 1944 uw_write_header(ctx, "=");
adamc@462 1945 uw_write_header(ctx, v);
adamc@466 1946 uw_write_header(ctx, "; path=");
adamc@466 1947 uw_write_header(ctx, prefix);
adamc@462 1948 uw_write_header(ctx, "\r\n");
adamc@462 1949
adamc@462 1950 return uw_unit_v;
adamc@462 1951 }
adamc@667 1952
adamc@682 1953 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682 1954 unsigned i;
adamc@682 1955 delta *d;
adamc@671 1956
adamc@682 1957 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682 1958 if (ctx->deltas[i].client == client)
adamc@682 1959 return &ctx->deltas[i];
adamc@671 1960
adamc@682 1961 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682 1962 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682 1963 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682 1964 }
adamc@671 1965
adamc@682 1966 d = &ctx->deltas[ctx->used_deltas++];
adamc@682 1967 d->client = client;
adamc@682 1968 buf_reset(&d->msgs);
adamc@682 1969 return d;
adamc@671 1970 }
adamc@671 1971
adamc@668 1972 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682 1973 if (ctx->client == NULL)
adamc@682 1974 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671 1975
adamc@682 1976 return new_channel(ctx->client);
adamc@668 1977 }
adamc@668 1978
adamc@668 1979 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682 1980 delta *d = allocate_delta(ctx, chn.cli);
adamc@682 1981 size_t len;
adamc@682 1982 int preLen;
adamc@682 1983 char pre[INTS_MAX + 2];
adamc@668 1984
adamc@682 1985 len = strlen(msg);
adamc@682 1986
adamc@682 1987 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682 1988
adamc@682 1989 buf_append(&d->msgs, pre, preLen);
adamc@682 1990 buf_append(&d->msgs, msg, len);
adamc@682 1991 buf_append(&d->msgs, "\n", 1);
adamc@671 1992
adamc@671 1993 return uw_unit_v;
adamc@668 1994 }
adamc@671 1995
adamc@671 1996 int uw_db_commit(uw_context);
adamc@671 1997 int uw_db_rollback(uw_context);
adamc@671 1998
adamc@671 1999 void uw_commit(uw_context ctx) {
adamc@682 2000 unsigned i;
adamc@671 2001
adamc@700 2002 if (uw_db_commit(ctx))
adamc@671 2003 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682 2004
adamc@682 2005 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682 2006 delta *d = &ctx->deltas[i];
adamc@682 2007 client *c = find_client(d->client);
adamc@682 2008
adamc@682 2009 assert (c != NULL && c->mode == USED);
adamc@682 2010
adamc@685 2011 client_send(c, &d->msgs);
adamc@682 2012 }
adamc@682 2013
adamc@682 2014 if (ctx->client)
adamc@685 2015 release_client(ctx->client);
adamc@671 2016 }
adamc@671 2017
adamc@671 2018 int uw_rollback(uw_context ctx) {
adamc@682 2019 if (ctx->client)
adamc@685 2020 release_client(ctx->client);
adamc@671 2021
adamc@671 2022 return uw_db_rollback(ctx);
adamc@671 2023 }
adamc@683 2024
adamc@683 2025
adamc@683 2026 // "Garbage collection"
adamc@683 2027
adamc@683 2028 void uw_expunger(uw_context ctx, uw_Basis_client cli);
adamc@683 2029
adamc@683 2030 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683 2031 int r = setjmp(ctx->jmp_buf);
adamc@683 2032
adamc@684 2033 if (r == 0) {
adamc@684 2034 if (uw_db_begin(ctx))
adamc@684 2035 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@683 2036 uw_expunger(ctx, cli);
adamc@684 2037 if (uw_db_commit(ctx))
adamc@684 2038 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684 2039 }
adamc@683 2040
adamc@683 2041 return r;
adamc@683 2042 }
adamc@683 2043
adamc@683 2044 void uw_prune_clients(uw_context ctx) {
adamc@683 2045 client *c, *next, *prev = NULL;
adamc@683 2046 time_t cutoff;
adamc@683 2047
adamc@683 2048 cutoff = time(NULL) - uw_timeout;
adamc@683 2049
adamc@683 2050 pthread_mutex_lock(&clients_mutex);
adamc@683 2051
adamc@683 2052 for (c = clients_used; c; c = next) {
adamc@683 2053 next = c->next;
adamc@683 2054 pthread_mutex_lock(&c->lock);
adamc@685 2055 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683 2056 failure_kind fk = UNLIMITED_RETRY;
adamc@683 2057 if (prev)
adamc@683 2058 prev->next = next;
adamc@683 2059 else
adamc@683 2060 clients_used = next;
adamc@684 2061 uw_reset(ctx);
adamc@683 2062 while (fk == UNLIMITED_RETRY) {
adamc@683 2063 fk = uw_expunge(ctx, c->id);
adamc@684 2064 if (fk == UNLIMITED_RETRY) {
adamc@684 2065 uw_db_rollback(ctx);
adamc@684 2066 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683 2067 }
adamc@683 2068 }
adamc@684 2069 if (fk == SUCCESS)
adamc@684 2070 free_client(c);
adamc@684 2071 else {
adamc@684 2072 uw_db_rollback(ctx);
adamc@683 2073 printf("Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684 2074 }
adamc@683 2075 }
adamc@683 2076 else
adamc@683 2077 prev = c;
adamc@683 2078 pthread_mutex_unlock(&c->lock);
adamc@683 2079 }
adamc@683 2080
adamc@683 2081 pthread_mutex_unlock(&clients_mutex);
adamc@683 2082 }
adamc@687 2083
adamc@687 2084 void uw_initializer(uw_context ctx);
adamc@687 2085
adamc@687 2086 failure_kind uw_initialize(uw_context ctx) {
adamc@687 2087 int r = setjmp(ctx->jmp_buf);
adamc@687 2088
adamc@687 2089 if (r == 0) {
adamc@687 2090 if (uw_db_begin(ctx))
adamc@687 2091 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@687 2092 uw_initializer(ctx);
adamc@687 2093 if (uw_db_commit(ctx))
adamc@687 2094 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687 2095 }
adamc@687 2096
adamc@687 2097 return r;
adamc@687 2098 }
adamc@717 2099
adamc@717 2100 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@717 2101 return s;
adamc@717 2102 }
adamc@734 2103
adamc@734 2104 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734 2105 return s ? s : "";
adamc@734 2106 }
adamc@734 2107
adamc@734 2108 extern int uw_hash_blocksize;
adamc@734 2109
adamc@734 2110 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734 2111 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734 2112 int i;
adamc@734 2113
adamc@734 2114 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734 2115 sprintf(&r[2*i], "%.02X", ((unsigned char *)sig)[i]);
adamc@734 2116
adamc@734 2117 return r;
adamc@734 2118 }
adamc@734 2119
adamc@734 2120 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@734 2121 return uw_cookie_sig(ctx);
adamc@734 2122 }
adamc@737 2123
adamc@737 2124 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737 2125 return f.name;
adamc@737 2126 }
adamc@737 2127
adamc@737 2128 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737 2129 return f.data;
adamc@737 2130 }
adamc@737 2131
adamc@737 2132 uw_Basis_int uw_Basis_numFiles(uw_context ctx, uw_Basis_files fs) {
adamc@737 2133 return fs.size;
adamc@737 2134 }
adamc@737 2135
adamc@737 2136 uw_Basis_file uw_Basis_fileNum(uw_context ctx, uw_Basis_files fs, uw_Basis_int n) {
adamc@737 2137 if (n < 0 || n >= fs.size)
adamc@737 2138 uw_error(ctx, FATAL, "Files index out of bounds");
adamc@737 2139 else
adamc@737 2140 return fs.files[n];
adamc@737 2141 }