git.m6w6.name Git - m6w6/ext-http/blob - http_request_pool_api.c

   1 /*
   2     +--------------------------------------------------------------------+
   3     | PECL :: http                                                       |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted provided that the conditions mentioned |
   7     | in the accompanying LICENSE file are met.                          |
   8     +--------------------------------------------------------------------+
   9     | Copyright (c) 2004-2007, Michael Wallner <mike@php.net>            |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 /* $Id$ */
  14
  15 #define HTTP_WANT_CURL
  16 #define HTTP_WANT_EVENT
  17 #include "php_http.h"
  18
  19 #if defined(ZEND_ENGINE_2) && defined(HTTP_HAVE_CURL)
  20
  21 #include "php_http_api.h"
  22 #include "php_http_exception_object.h"
  23 #include "php_http_persistent_handle_api.h"
  24 #include "php_http_request_api.h"
  25 #include "php_http_request_object.h"
  26 #include "php_http_request_pool_api.h"
  27 #include "php_http_requestpool_object.h"
  28
  29 #ifndef HTTP_DEBUG_REQPOOLS
  30 #       define HTTP_DEBUG_REQPOOLS 0
  31 #endif
  32
  33 #ifdef HTTP_HAVE_EVENT
  34 typedef struct _http_request_pool_event_t {
  35         struct event evnt;
  36         http_request_pool *pool;
  37 } http_request_pool_event;
  38
  39 static inline void http_request_pool_update_timeout(http_request_pool *pool);
  40 static void http_request_pool_timeout_callback(int socket, short action, void *event_data);
  41 static void http_request_pool_event_callback(int socket, short action, void *event_data);
  42 static int http_request_pool_socket_callback(CURL *easy, curl_socket_t s, int action, void *, void *);
  43 #endif
  44
  45 static int http_request_pool_compare_handles(void *h1, void *h2);
  46
  47 PHP_MINIT_FUNCTION(http_request_pool)
  48 {
  49         if (SUCCESS != http_persistent_handle_provide("http_request_pool", curl_multi_init, (http_persistent_handle_dtor) curl_multi_cleanup, NULL)) {
  50                 return FAILURE;
  51         }
  52         return SUCCESS;
  53 }
  54
  55 #ifdef HTTP_HAVE_EVENT
  56 PHP_RINIT_FUNCTION(http_request_pool)
  57 {
  58         if (!HTTP_G->request.pool.event.base && !(HTTP_G->request.pool.event.base = event_init())) {
  59                 return FAILURE;
  60         }
  61
  62         return SUCCESS;
  63 }
  64 #endif
  65
  66 /* {{{ http_request_pool *http_request_pool_init(http_request_pool *) */
  67 PHP_HTTP_API http_request_pool *_http_request_pool_init(http_request_pool *pool TSRMLS_DC)
  68 {
  69         zend_bool free_pool;
  70
  71 #if HTTP_DEBUG_REQPOOLS
  72         fprintf(stderr, "Initializing request pool %p\n", pool);
  73 #endif
  74
  75         if ((free_pool = (!pool))) {
  76                 pool = emalloc(sizeof(http_request_pool));
  77                 pool->ch = NULL;
  78         }
  79
  80         if (SUCCESS != http_persistent_handle_acquire("http_request_pool", &pool->ch)) {
  81                 if (free_pool) {
  82                         efree(pool);
  83                 }
  84                 return NULL;
  85         }
  86
  87         TSRMLS_SET_CTX(pool->tsrm_ls);
  88
  89 #if HTTP_HAVE_EVENT
  90         pool->timeout = ecalloc(1, sizeof(struct event));
  91         curl_multi_setopt(pool->ch, CURLMOPT_SOCKETDATA, pool);
  92         curl_multi_setopt(pool->ch, CURLMOPT_SOCKETFUNCTION, http_request_pool_socket_callback);
  93 #endif
  94
  95         pool->unfinished = 0;
  96         zend_llist_init(&pool->finished, sizeof(zval *), (llist_dtor_func_t) ZVAL_PTR_DTOR, 0);
  97         zend_llist_init(&pool->handles, sizeof(zval *), (llist_dtor_func_t) ZVAL_PTR_DTOR, 0);
  98
  99 #if HTTP_DEBUG_REQPOOLS
 100         fprintf(stderr, "Initialized request pool %p\n", pool);
 101 #endif
 102
 103         return pool;
 104 }
 105 /* }}} */
 106
 107 /* {{{ STATUS http_request_pool_attach(http_request_pool *, zval *) */
 108 PHP_HTTP_API STATUS _http_request_pool_attach(http_request_pool *pool, zval *request)
 109 {
 110         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 111         getObjectEx(http_request_object, req, request);
 112
 113 #if HTTP_DEBUG_REQPOOLS
 114         fprintf(stderr, "Attaching HttpRequest(#%d) %p to pool %p\n", Z_OBJ_HANDLE_P(request), req, pool);
 115 #endif
 116
 117         if (req->pool) {
 118                 http_error_ex(HE_WARNING, HTTP_E_INVALID_PARAM, "HttpRequest object(#%d) is already member of %s HttpRequestPool", Z_OBJ_HANDLE_P(request), req->pool == pool ? "this" : "another");
 119         } else if (SUCCESS != http_request_object_requesthandler(req, request)) {
 120                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "Could not initialize HttpRequest object(#%d) for attaching to the HttpRequestPool", Z_OBJ_HANDLE_P(request));
 121         } else {
 122                 CURLMcode code = curl_multi_add_handle(pool->ch, req->request->ch);
 123
 124                 if ((CURLM_OK != code) && (CURLM_CALL_MULTI_PERFORM != code)) {
 125                         http_error_ex(HE_WARNING, HTTP_E_REQUEST_POOL, "Could not attach HttpRequest object(#%d) to the HttpRequestPool: %s", Z_OBJ_HANDLE_P(request), curl_multi_strerror(code));
 126                 } else {
 127                         req->pool = pool;
 128
 129                         ZVAL_ADDREF(request);
 130                         zend_llist_add_element(&pool->handles, &request);
 131
 132 #if HTTP_DEBUG_REQPOOLS
 133                         fprintf(stderr, "> %d HttpRequests attached to pool %p\n", zend_llist_count(&pool->handles), pool);
 134 #endif
 135                         return SUCCESS;
 136                 }
 137         }
 138         return FAILURE;
 139 }
 140 /* }}} */
 141
 142 /* {{{ STATUS http_request_pool_detach(http_request_pool *, zval *) */
 143 PHP_HTTP_API STATUS _http_request_pool_detach(http_request_pool *pool, zval *request)
 144 {
 145         CURLMcode code;
 146         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 147         getObjectEx(http_request_object, req, request);
 148
 149 #if HTTP_DEBUG_REQPOOLS
 150         fprintf(stderr, "Detaching HttpRequest(#%d) %p from pool %p\n", Z_OBJ_HANDLE_P(request), req, pool);
 151 #endif
 152
 153         if (!req->pool) {
 154                 /* not attached to any pool */
 155 #if HTTP_DEBUG_REQPOOLS
 156                 fprintf(stderr, "HttpRequest object(#%d) %p is not attached to any HttpRequestPool\n", Z_OBJ_HANDLE_P(request), req);
 157 #endif
 158         } else if (req->pool != pool) {
 159                 http_error_ex(HE_WARNING, HTTP_E_INVALID_PARAM, "HttpRequest object(#%d) is not attached to this HttpRequestPool", Z_OBJ_HANDLE_P(request));
 160         } else if (req->request->_in_progress_cb) {
 161                 http_error_ex(HE_WARNING, HTTP_E_REQUEST_POOL, "HttpRequest object(#%d) cannot be detached from the HttpRequestPool while executing the progress callback", Z_OBJ_HANDLE_P(request));
 162         } else if (CURLM_OK != (code = curl_multi_remove_handle(pool->ch, req->request->ch))) {
 163                 http_error_ex(HE_WARNING, HTTP_E_REQUEST_POOL, "Could not detach HttpRequest object(#%d) from the HttpRequestPool: %s", Z_OBJ_HANDLE_P(request), curl_multi_strerror(code));
 164         } else {
 165                 req->pool = NULL;
 166                 zend_llist_del_element(&pool->finished, request, http_request_pool_compare_handles);
 167                 zend_llist_del_element(&pool->handles, request, http_request_pool_compare_handles);
 168
 169 #if HTTP_DEBUG_REQPOOLS
 170                 fprintf(stderr, "> %d HttpRequests remaining in pool %p\n", zend_llist_count(&pool->handles), pool);
 171 #endif
 172
 173                 return SUCCESS;
 174         }
 175         return FAILURE;
 176 }
 177 /* }}} */
 178
 179 /* {{{ void http_request_pool_apply(http_request_pool *, http_request_pool_apply_func) */
 180 PHP_HTTP_API void _http_request_pool_apply(http_request_pool *pool, http_request_pool_apply_func cb)
 181 {
 182         int count = zend_llist_count(&pool->handles);
 183
 184         if (count) {
 185                 int i = 0;
 186                 zend_llist_position pos;
 187                 zval **handle, **handles = emalloc(count * sizeof(zval *));
 188
 189                 for (handle = zend_llist_get_first_ex(&pool->handles, &pos); handle; handle = zend_llist_get_next_ex(&pool->handles, &pos)) {
 190                         handles[i++] = *handle;
 191                 }
 192
 193                 /* should never happen */
 194                 if (i != count) {
 195                         zend_error(E_ERROR, "number of fetched request handles do not match overall count");
 196                         count = i;
 197                 }
 198
 199                 for (i = 0; i < count; ++i) {
 200                         if (cb(pool, handles[i])) {
 201                                 break;
 202                         }
 203                 }
 204                 efree(handles);
 205         }
 206 }
 207 /* }}} */
 208
 209 /* {{{ void http_request_pool_apply_with_arg(http_request_pool *, http_request_pool_apply_with_arg_func, void *) */
 210 PHP_HTTP_API void _http_request_pool_apply_with_arg(http_request_pool *pool, http_request_pool_apply_with_arg_func cb, void *arg)
 211 {
 212         int count = zend_llist_count(&pool->handles);
 213
 214         if (count) {
 215                 int i = 0;
 216                 zend_llist_position pos;
 217                 zval **handle, **handles = emalloc(count * sizeof(zval *));
 218
 219                 for (handle = zend_llist_get_first_ex(&pool->handles, &pos); handle; handle = zend_llist_get_next_ex(&pool->handles, &pos)) {
 220                         handles[i++] = *handle;
 221                 }
 222
 223                 /* should never happen */
 224                 if (i != count) {
 225                         zend_error(E_ERROR, "number of fetched request handles do not match overall count");
 226                         count = i;
 227                 }
 228
 229                 for (i = 0; i < count; ++i) {
 230                         if (cb(pool, handles[i], arg)) {
 231                                 break;
 232                         }
 233                 }
 234                 efree(handles);
 235         }
 236 }
 237 /* }}} */
 238
 239 /* {{{ void http_request_pool_detach_all(http_request_pool *) */
 240 PHP_HTTP_API void _http_request_pool_detach_all(http_request_pool *pool)
 241 {
 242 #if HTTP_DEBUG_REQPOOLS
 243         fprintf(stderr, "Detaching %d requests from pool %p\n", zend_llist_count(&pool->handles), pool);
 244 #endif
 245         http_request_pool_apply(pool, _http_request_pool_detach);
 246 }
 247 /* }}} */
 248
 249 /* {{{ STATUS http_request_pool_send(http_request_pool *) */
 250 PHP_HTTP_API STATUS _http_request_pool_send(http_request_pool *pool)
 251 {
 252         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 253
 254 #if HTTP_DEBUG_REQPOOLS
 255         fprintf(stderr, "Attempt to send %d requests of pool %p\n", zend_llist_count(&pool->handles), pool);
 256 #endif
 257
 258 #ifdef HTTP_HAVE_EVENT
 259         while (CURLM_CALL_MULTI_PERFORM == curl_multi_socket_all(pool->ch, &pool->unfinished));
 260         http_request_pool_update_timeout(pool);
 261
 262         event_base_dispatch(HTTP_G->request.pool.event.base);
 263 #else
 264         while (http_request_pool_perform(pool)) {
 265                 if (SUCCESS != http_request_pool_select(pool)) {
 266 #       ifdef PHP_WIN32
 267                         /* see http://msdn.microsoft.com/library/en-us/winsock/winsock/windows_sockets_error_codes_2.asp */
 268                         http_error_ex(HE_WARNING, HTTP_E_SOCKET, "WinSock error: %d", WSAGetLastError());
 269 #       else
 270                         http_error(HE_WARNING, HTTP_E_SOCKET, strerror(errno));
 271 #       endif
 272                         return FAILURE;
 273                 }
 274         }
 275 #endif
 276
 277 #if HTTP_DEBUG_REQPOOLS
 278         fprintf(stderr, "Finished sending %d HttpRequests of pool %p (still unfinished: %d)\n", zend_llist_count(&pool->handles), pool, pool->unfinished);
 279 #endif
 280
 281         return SUCCESS;
 282 }
 283 /* }}} */
 284
 285 /* {{{ void http_request_pool_dtor(http_request_pool *) */
 286 PHP_HTTP_API void _http_request_pool_dtor(http_request_pool *pool)
 287 {
 288         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 289
 290 #if HTTP_DEBUG_REQPOOLS
 291         fprintf(stderr, "Destructing request pool %p\n", pool);
 292 #endif
 293
 294         pool->unfinished = 0;
 295         zend_llist_clean(&pool->finished);
 296         zend_llist_clean(&pool->handles);
 297         efree(pool->timeout);
 298         http_persistent_handle_release("http_request_pool", &pool->ch);
 299 }
 300 /* }}} */
 301
 302 #ifdef PHP_WIN32
 303 #       define SELECT_ERROR SOCKET_ERROR
 304 #else
 305 #       define SELECT_ERROR -1
 306 #endif
 307
 308 /* {{{ STATUS http_request_pool_select(http_request_pool *) */
 309 PHP_HTTP_API STATUS _http_request_pool_select(http_request_pool *pool)
 310 {
 311 #ifdef HTTP_HAVE_EVENT
 312         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 313         http_error(HE_WARNING, HTTP_E_RUNTIME, "not implemented; use HttpRequest::onProgress callback");
 314         return FAILURE;
 315 #else
 316         int MAX;
 317         fd_set R, W, E;
 318         struct timeval timeout;
 319
 320         http_request_pool_timeout(pool, &timeout);
 321
 322         FD_ZERO(&R);
 323         FD_ZERO(&W);
 324         FD_ZERO(&E);
 325
 326         if (CURLM_OK == curl_multi_fdset(pool->ch, &R, &W, &E, &MAX)) {
 327                 if (MAX == -1) {
 328                         http_sleep((double) timeout.tv_sec + (double) (timeout.tv_usec / HTTP_MCROSEC));
 329                         return SUCCESS;
 330                 } else if (SELECT_ERROR != select(MAX + 1, &R, &W, &E, &timeout)) {
 331                         return SUCCESS;
 332                 }
 333         }
 334         return FAILURE;
 335 #endif
 336 }
 337 /* }}} */
 338
 339 /* {{{ int http_request_pool_perform(http_request_pool *) */
 340 PHP_HTTP_API int _http_request_pool_perform(http_request_pool *pool)
 341 {
 342         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 343 #ifdef HTTP_HAVE_EVENT
 344         http_error(HE_WARNING, HTTP_E_RUNTIME, "not implemented; use HttpRequest::onProgress callback");
 345         return FAILURE;
 346 #else
 347         CURLMsg *msg;
 348         int remaining = 0;
 349
 350         while (CURLM_CALL_MULTI_PERFORM == curl_multi_perform(pool->ch, &pool->unfinished));
 351
 352         http_request_pool_response_handler(pool);
 353
 354         return pool->unfinished;
 355 #endif
 356 }
 357 /* }}} */
 358
 359 /* {{{ void http_request_pool_responsehandler(http_request_pool *) */
 360 void _http_request_pool_responsehandler(http_request_pool *pool)
 361 {
 362         CURLMsg *msg;
 363         int remaining = 0;
 364         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 365
 366         do {
 367                 msg = curl_multi_info_read(pool->ch, &remaining);
 368                 if (msg && CURLMSG_DONE == msg->msg) {
 369                         if (CURLE_OK != msg->data.result) {
 370                                 http_request *r = NULL;
 371                                 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &r);
 372                                 http_error_ex(HE_WARNING, HTTP_E_REQUEST, "%s; %s (%s)", curl_easy_strerror(msg->data.result), r?r->_error:"", r?r->url:"");
 373                         }
 374                         http_request_pool_apply_with_arg(pool, _http_request_pool_apply_responsehandler, msg->easy_handle);
 375                 }
 376         } while (remaining);
 377 }
 378 /* }}} */
 379
 380 /* {{{ int http_request_pool_apply_responsehandler(http_request_pool *, zval *, void *) */
 381 int _http_request_pool_apply_responsehandler(http_request_pool *pool, zval *req, void *ch)
 382 {
 383         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 384         getObjectEx(http_request_object, obj, req);
 385
 386         if ((!ch) || obj->request->ch == (CURL *) ch) {
 387
 388 #if HTTP_DEBUG_REQPOOLS
 389                 fprintf(stderr, "Fetching data from HttpRequest(#%d) %p of pool %p\n", Z_OBJ_HANDLE_P(req), obj, obj->pool);
 390 #endif
 391
 392                 ZVAL_ADDREF(req);
 393                 zend_llist_add_element(&obj->pool->finished, &req);
 394                 http_request_object_responsehandler(obj, req);
 395                 return 1;
 396         }
 397         return 0;
 398 }
 399 /* }}} */
 400
 401 /* {{{ struct timeval *_http_request_pool_timeout(http_request_pool *, struct timeval *) */
 402 struct timeval *_http_request_pool_timeout(http_request_pool *pool, struct timeval *timeout)
 403 {
 404 #ifdef HAVE_CURL_MULTI_TIMEOUT
 405         long max_tout = 1000;
 406
 407         if ((CURLM_OK == curl_multi_timeout(pool->ch, &max_tout)) && (max_tout != -1)) {
 408                 timeout->tv_sec = max_tout / 1000;
 409                 timeout->tv_usec = (max_tout % 1000) * 1000;
 410         } else {
 411 #endif
 412                 timeout->tv_sec = 1;
 413                 timeout->tv_usec = 0;
 414 #ifdef HAVE_CURL_MULTI_TIMEOUT
 415         }
 416 #endif
 417
 418 #if HTTP_DEBUG_REQPOOLS
 419         fprintf(stderr, "Calculating timeout (%lu, %lu) of pool %p\n", (ulong) timeout->tv_sec, (ulong) timeout->tv_usec, pool);
 420 #endif
 421
 422         return timeout;
 423 }
 424 /* }}} */
 425
 426 /*#*/
 427
 428 /* {{{ static int http_request_pool_compare_handles(void *, void *) */
 429 static int http_request_pool_compare_handles(void *h1, void *h2)
 430 {
 431         return (Z_OBJ_HANDLE_PP((zval **) h1) == Z_OBJ_HANDLE_P((zval *) h2));
 432 }
 433 /* }}} */
 434
 435 #ifdef HTTP_HAVE_EVENT
 436 /* {{{ static void http_request_pool_update_timeout(http_request_pool *) */
 437 static inline void http_request_pool_update_timeout(http_request_pool *pool)
 438 {
 439         struct timeval timeout;
 440         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 441
 442         if (event_initialized(pool->timeout)) {
 443                 event_del(pool->timeout);
 444         }
 445
 446         if (pool->unfinished) {
 447                 event_set(pool->timeout, -1, 0, http_request_pool_timeout_callback, pool);
 448                 event_base_set(HTTP_G->request.pool.event.base, pool->timeout);
 449                 event_add(pool->timeout, http_request_pool_timeout(pool, &timeout));
 450
 451 #if HTTP_DEBUG_REQPOOLS
 452                 fprintf(stderr, "Updating timeout (%lu, %lu) of pool %p\n", (ulong) timeout.tv_sec, (ulong) timeout.tv_usec, pool);
 453 #endif
 454         }
 455 #if HTTP_DEBUG_REQPOOLS
 456                 else fprintf(stderr, "Removed timeout of pool %p\n", pool);
 457 #endif
 458 }
 459 /* }}} */
 460
 461 /* {{{ static void http_request_pool_timeout_callback(int, short, void *) */
 462 static void http_request_pool_timeout_callback(int socket, short action, void *event_data)
 463 {
 464         CURLMcode rc;
 465         http_request_pool *pool = event_data;
 466         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 467
 468 #if HTTP_DEBUG_REQPOOLS
 469         fprintf(stderr, "Timeout occurred of pool %p\n", pool);
 470 #endif
 471
 472         while (CURLM_CALL_MULTI_PERFORM == (rc = curl_multi_socket(pool->ch, CURL_SOCKET_TIMEOUT, &pool->unfinished)));
 473
 474         if (CURLM_OK != rc) {
 475                 http_error(HE_WARNING, HTTP_E_SOCKET, curl_multi_strerror(rc));
 476         }
 477
 478         http_request_pool_update_timeout(pool);
 479 }
 480 /* }}} */
 481
 482 /* {{{ static void http_request_pool_event_callback(int, short, void *) */
 483 static void http_request_pool_event_callback(int socket, short action, void *event_data)
 484 {
 485         CURLMcode rc = CURLE_OK;
 486         http_request_pool_event *ev = event_data;
 487         http_request_pool *pool = ev->pool;
 488         TSRMLS_FETCH_FROM_CTX(ev->pool->tsrm_ls);
 489
 490 #if HTTP_DEBUG_REQPOOLS
 491         {
 492                 static const char event_strings[][20] = {"NONE","TIMEOUT","READ","TIMEOUT|READ","WRITE","TIMEOUT|WRITE","READ|WRITE","TIMEOUT|READ|WRITE","SIGNAL"};
 493                 fprintf(stderr, "Event on socket %d (%s) event %p of pool %p\n", socket, event_strings[action], ev, pool);
 494         }
 495 #endif
 496
 497         /* don't use 'ev' below this loop as it might 've been freed in the socket callback */
 498         do {
 499 #ifdef HAVE_CURL_MULTI_SOCKET_ACTION
 500                 switch (action & (EV_READ|EV_WRITE)) {
 501                         case EV_READ:
 502                                 rc = curl_multi_socket_action(pool->ch, socket, CURL_CSELECT_IN, &pool->unfinished);
 503                                 break;
 504                         case EV_WRITE:
 505                                 rc = curl_multi_socket_action(pool->ch, socket, CURL_CSELECT_OUT, &pool->unfinished);
 506                                 break;
 507                         case EV_READ|EV_WRITE:
 508                                 rc = curl_multi_socket_action(pool->chm socket, CURL_CSELECT_IN|CURL_CSELECT_OUT, &pool->unfinished);
 509                                 break;
 510                         default:
 511                                 http_error(HE_WARNING, HTTP_E_SOCKET, "Unknown event %d", (int) action);
 512                                 return;
 513                 }
 514 #else
 515                 rc = curl_multi_socket(pool->ch, socket, &pool->unfinished);
 516 #endif
 517         } while (CURLM_CALL_MULTI_PERFORM == rc);
 518
 519         if (CURLM_OK != rc) {
 520                 http_error(HE_WARNING, HTTP_E_SOCKET, curl_multi_strerror(rc));
 521         }
 522
 523         http_request_pool_responsehandler(pool);
 524
 525         if (!pool->unfinished) {
 526                 http_request_pool_update_timeout(pool);
 527         }
 528 }
 529 /* }}} */
 530
 531 /* {{{ static int http_request_pool_socket_callback(CURL *, curl_socket_t, int, void *, void *) */
 532 static int http_request_pool_socket_callback(CURL *easy, curl_socket_t sock, int action, void *socket_data, void *assign_data)
 533 {
 534         int events = EV_PERSIST;
 535         http_request_pool *pool = socket_data;
 536         http_request_pool_event *ev = assign_data;
 537         TSRMLS_FETCH_FROM_CTX(pool->tsrm_ls);
 538
 539         if (!ev) {
 540                 ev = ecalloc(1, sizeof(http_request_pool_event));
 541                 ev->pool = pool;
 542                 curl_multi_assign(pool->ch, sock, ev);
 543         } else {
 544                 event_del(&ev->evnt);
 545         }
 546
 547 #if HTTP_DEBUG_REQPOOLS
 548         {
 549                 static const char action_strings[][8] = {"NONE", "IN", "OUT", "INOUT", "REMOVE"};
 550                 fprintf(stderr, "Callback on socket %d (%s) event %p of pool %p\n", (int) sock, action_strings[action], ev, pool);
 551         }
 552 #endif
 553
 554         switch (action) {
 555                 case CURL_POLL_IN:
 556                         events |= EV_READ;
 557                         break;
 558                 case CURL_POLL_OUT:
 559                         events |= EV_WRITE;
 560                         break;
 561                 case CURL_POLL_INOUT:
 562                         events |= EV_READ|EV_WRITE;
 563                         break;
 564
 565                 case CURL_POLL_REMOVE:
 566                         efree(ev);
 567                 case CURL_POLL_NONE:
 568                         return 0;
 569
 570                 default:
 571                         http_error_ex(HE_WARNING, HTTP_E_SOCKET, "Unknown socket action %d", action);
 572                         return -1;
 573         }
 574
 575         event_set(&ev->evnt, sock, events, http_request_pool_event_callback, ev);
 576         event_base_set(HTTP_G->request.pool.event.base, &ev->evnt);
 577         event_add(&ev->evnt, NULL);
 578
 579         return 0;
 580 }
 581 /* }}} */
 582 #endif /* HTTP_HAVE_EVENT */
 583
 584 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_CURL */
 585
 586
 587 /*
 588  * Local variables:
 589  * tab-width: 4
 590  * c-basic-offset: 4
 591  * End:
 592  * vim600: noet sw=4 ts=4 fdm=marker
 593  * vim<600: noet sw=4 ts=4
 594  */
 595