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

   1 /*
   2    +----------------------------------------------------------------------+
   3    | PECL :: http                                                         |
   4    +----------------------------------------------------------------------+
   5    | This source file is subject to version 3.0 of the PHP license, that  |
   6    | is bundled with this package in the file LICENSE, and is available   |
   7    | through the world-wide-web at http://www.php.net/license/3_0.txt.    |
   8    | If you did not receive a copy of the PHP license and are unable to   |
   9    | obtain it through the world-wide-web, please send a note to          |
  10    | license@php.net so we can mail you a copy immediately.               |
  11    +----------------------------------------------------------------------+
  12    | Copyright (c) 2004-2005 Michael Wallner <mike@php.net>               |
  13    +----------------------------------------------------------------------+
  14 */
  15
  16 /* $Id$ */
  17
  18 #ifdef HAVE_CONFIG_H
  19 #       include "config.h"
  20 #endif
  21 #include "php.h"
  22
  23 #if defined(ZEND_ENGINE_2) && defined(HTTP_HAVE_CURL)
  24
  25 #include "php_http.h"
  26 #include "php_http_std_defs.h"
  27 #include "php_http_api.h"
  28 #include "php_http_request_api.h"
  29 #include "php_http_request_pool_api.h"
  30 #include "php_http_request_object.h"
  31 #include "php_http_requestpool_object.h"
  32
  33 #ifndef HTTP_DEBUG_REQPOOLS
  34 #       define HTTP_DEBUG_REQPOOLS 0
  35 #endif
  36
  37 static void http_request_pool_freebody(http_request_body **body);
  38 static int http_request_pool_compare_handles(void *h1, void *h2);
  39
  40 /* {{{ http_request_pool *http_request_pool_init(http_request_pool *) */
  41 PHP_HTTP_API http_request_pool *_http_request_pool_init(http_request_pool *pool TSRMLS_DC)
  42 {
  43         zend_bool free_pool;
  44 #if HTTP_DEBUG_REQPOOLS
  45         fprintf(stderr, "Initializing request pool %p\n", pool);
  46 #endif
  47         if ((free_pool = (!pool))) {
  48                 pool = emalloc(sizeof(http_request_pool));
  49                 pool->ch = NULL;
  50         }
  51
  52         if (!pool->ch) {
  53                 if (!(pool->ch = curl_multi_init())) {
  54                         http_error(E_WARNING, HTTP_E_CURL, "Could not initialize curl");
  55                         if (free_pool) {
  56                                 efree(pool);
  57                         }
  58                         return NULL;
  59                 }
  60         }
  61
  62         pool->unfinished = 0;
  63         zend_llist_init(&pool->handles, sizeof(zval *), (llist_dtor_func_t) ZVAL_PTR_DTOR, 0);
  64         zend_llist_init(&pool->bodies, sizeof(http_request_body *), (llist_dtor_func_t) http_request_pool_freebody, 0);
  65 #if HTTP_DEBUG_REQPOOLS
  66         fprintf(stderr, "Initialized request pool %p\n", pool);
  67 #endif
  68         return pool;
  69 }
  70 /* }}} */
  71
  72 /* {{{ STATUS http_request_pool_attach(http_request_pool *, zval *) */
  73 PHP_HTTP_API STATUS _http_request_pool_attach(http_request_pool *pool, zval *request TSRMLS_DC)
  74 {
  75         getObjectEx(http_request_object, req, request);
  76 #if HTTP_DEBUG_REQPOOLS
  77         fprintf(stderr, "Attaching HttpRequest(#%d) %p to pool %p\n", Z_OBJ_HANDLE_P(request), req, pool);
  78 #endif
  79         if (req->pool) {
  80                 http_error_ex(E_WARNING, HTTP_E_CURL, "HttpRequest object(#%d) is already member of %s HttpRequestPool", Z_OBJ_HANDLE_P(request), req->pool == pool ? "this" : "another");
  81         } else {
  82                 http_request_body *body = http_request_body_new();
  83
  84                 if (SUCCESS != http_request_object_requesthandler(req, request, body)) {
  85                         http_error_ex(E_WARNING, HTTP_E_CURL, "Could not initialize HttpRequest object for attaching to the HttpRequestPool");
  86                 } else {
  87                         CURLMcode code = curl_multi_add_handle(pool->ch, req->ch);
  88
  89                         if ((CURLM_OK != code) && (CURLM_CALL_MULTI_PERFORM != code)) {
  90                                 http_error_ex(E_WARNING, HTTP_E_CURL, "Could not attach HttpRequest object to the HttpRequestPool: %s", curl_multi_strerror(code));
  91                         } else {
  92                                 req->pool = pool;
  93
  94                                 zend_llist_add_element(&pool->handles, &request);
  95                                 zend_llist_add_element(&pool->bodies, &body);
  96
  97                                 zval_add_ref(&request);
  98                                 zend_objects_store_add_ref(request TSRMLS_CC);
  99
 100 #if HTTP_DEBUG_REQPOOLS
 101                                 fprintf(stderr, "> %d HttpRequests attached to pool %p\n", zend_llist_count(&pool->handles), pool);
 102 #endif
 103                                 return SUCCESS;
 104                         }
 105                 }
 106                 efree(body);
 107         }
 108         return FAILURE;
 109 }
 110 /* }}} */
 111
 112 /* {{{ STATUS http_request_pool_detach(http_request_pool *, zval *) */
 113 PHP_HTTP_API STATUS _http_request_pool_detach(http_request_pool *pool, zval *request TSRMLS_DC)
 114 {
 115         getObjectEx(http_request_object, req, request);
 116 #if HTTP_DEBUG_REQPOOLS
 117         fprintf(stderr, "Detaching HttpRequest(#%d) %p from pool %p\n", Z_OBJ_HANDLE_P(request), req, pool);
 118 #endif
 119         if (!req->pool) {
 120                 /* not attached to any pool */
 121 #if HTTP_DEBUG_REQPOOLS
 122                 fprintf(stderr, "HttpRequest object(#%d) %p is not attached to any HttpRequestPool\n", Z_OBJ_HANDLE_P(request), req);
 123 #endif
 124         } else if (req->pool != pool) {
 125                 http_error_ex(E_WARNING, HTTP_E_CURL, "HttpRequest object(#%d) is not attached to this HttpRequestPool", Z_OBJ_HANDLE_P(request));
 126         } else {
 127                 CURLMcode code;
 128
 129                 req->pool = NULL;
 130                 zend_llist_del_element(&pool->handles, request, http_request_pool_compare_handles);
 131 #if HTTP_DEBUG_REQPOOLS
 132                 fprintf(stderr, "> %d HttpRequests remaining in pool %p\n", zend_llist_count(&pool->handles), pool);
 133 #endif
 134                 if (CURLM_OK != (code = curl_multi_remove_handle(pool->ch, req->ch))) {
 135                         http_error_ex(E_WARNING, HTTP_E_CURL, "Could not detach HttpRequest object from the HttpRequestPool: %s", curl_multi_strerror(code));
 136                 } else {
 137                         return SUCCESS;
 138                 }
 139         }
 140         return FAILURE;
 141 }
 142 /* }}} */
 143
 144 /* {{{ void http_request_pool_detach_all(http_request_pool *) */
 145 PHP_HTTP_API void _http_request_pool_detach_all(http_request_pool *pool TSRMLS_DC)
 146 {
 147         int count = zend_llist_count(&pool->handles);
 148 #if HTTP_DEBUG_REQPOOLS
 149         fprintf(stderr, "Detaching %d requests from pool %p\n", count, pool);
 150 #endif
 151         /*
 152          * we cannot apply a function to the llist which actually detaches
 153          * the curl handle *and* removes the llist element --
 154          * so let's get our hands dirty
 155          */
 156         if (count) {
 157                 int i = 0;
 158                 zend_llist_position pos;
 159                 zval **handle, **handles = emalloc(count * sizeof(zval *));
 160
 161                 for (handle = zend_llist_get_first_ex(&pool->handles, &pos); handle; handle = zend_llist_get_next_ex(&pool->handles, &pos)) {
 162                         handles[i++] = *handle;
 163                 }
 164                 for (i = 0; i < count; ++i) {
 165                         http_request_pool_detach(pool, handles[i]);
 166                 }
 167                 efree(handles);
 168         }
 169 }
 170
 171
 172 /* {{{ STATUS http_request_pool_send(http_request_pool *) */
 173 PHP_HTTP_API STATUS _http_request_pool_send(http_request_pool *pool TSRMLS_DC)
 174 {
 175 #if HTTP_DEBUG_REQPOOLS
 176         fprintf(stderr, "Attempt to send %d requests of pool %p\n", zend_llist_count(&pool->handles), pool);
 177 #endif
 178         while (http_request_pool_perform(pool)) {
 179 #if HTTP_DEBUG_REQPOOLS
 180                 fprintf(stderr, "> %d unfinished requests of pool %p remaining\n", pool->unfinished, pool);
 181 #endif
 182                 if (SUCCESS != http_request_pool_select(pool)) {
 183                         http_error(E_WARNING, HTTP_E_CURL, "Socket error");
 184                         return FAILURE;
 185                 }
 186         }
 187 #if HTTP_DEBUG_REQPOOLS
 188         fprintf(stderr, "Finished sending %d HttpRequests of pool %p (still unfinished: %d)\n", zend_llist_count(&pool->handles), pool, pool->unfinished);
 189 #endif
 190         zend_llist_apply(&pool->handles, (llist_apply_func_t) http_request_pool_responsehandler TSRMLS_CC);
 191         return SUCCESS;
 192 }
 193 /* }}} */
 194
 195 /* {{{ void http_request_pool_dtor(http_request_pool *) */
 196 PHP_HTTP_API void _http_request_pool_dtor(http_request_pool *pool TSRMLS_DC)
 197 {
 198 #if HTTP_DEBUG_REQPOOLS
 199         fprintf(stderr, "Destructing request pool %p\n", pool);
 200 #endif
 201         pool->unfinished = 0;
 202         zend_llist_clean(&pool->handles);
 203         zend_llist_clean(&pool->bodies);
 204         curl_multi_cleanup(pool->ch);
 205 }
 206 /* }}} */
 207
 208 /* {{{ STATUS http_request_pool_select(http_request_pool *) */
 209 PHP_HTTP_API STATUS _http_request_pool_select(http_request_pool *pool)
 210 {
 211         int MAX;
 212         fd_set R, W, E;
 213         struct timeval timeout = {1, 0};
 214
 215         FD_ZERO(&R);
 216         FD_ZERO(&W);
 217         FD_ZERO(&E);
 218
 219         curl_multi_fdset(pool->ch, &R, &W, &E, &MAX);
 220         return (-1 != select(MAX + 1, &R, &W, &E, &timeout)) ? SUCCESS : FAILURE;
 221 }
 222 /* }}} */
 223
 224 /* {{{ int http_request_pool_perform(http_request_pool *) */
 225 PHP_HTTP_API int _http_request_pool_perform(http_request_pool *pool)
 226 {
 227         while (CURLM_CALL_MULTI_PERFORM == curl_multi_perform(pool->ch, &pool->unfinished));
 228         return pool->unfinished;
 229 }
 230 /* }}} */
 231
 232 /* {{{ void http_request_pool_responsehandler(zval **) */
 233 void _http_request_pool_responsehandler(zval **req TSRMLS_DC)
 234 {
 235         getObjectEx(http_request_object, obj, *req);
 236 #if HTTP_DEBUG_REQPOOLS
 237         fprintf(stderr, "Fetching data from HttpRequest(#%d) %p of pool %p\n", Z_OBJ_HANDLE_PP(req), obj, obj->pool);
 238 #endif
 239         http_request_object_responsehandler(obj, *req);
 240 }
 241 /* }}} */
 242
 243 /*#*/
 244
 245 /* {{{ static void http_request_pool_freebody(http_request_body **) */
 246 static void http_request_pool_freebody(http_request_body **body)
 247 {
 248         TSRMLS_FETCH();
 249         http_request_body_free(*body);
 250 }
 251 /* }}} */
 252
 253 /* {{{ static int http_request_pool_compare_handles(void *, void *) */
 254 static int http_request_pool_compare_handles(void *h1, void *h2)
 255 {
 256         int match = (Z_OBJ_HANDLE_PP((zval **) h1) == Z_OBJ_HANDLE_P((zval *) h2));
 257 #if HTTP_DEBUG_REQPOOLS
 258         /* if(match) fprintf(stderr, "OK\n"); */
 259 #endif
 260         return match;
 261 }
 262 /* }}} */
 263
 264 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_CURL */
 265
 266
 267 /*
 268  * Local variables:
 269  * tab-width: 4
 270  * c-basic-offset: 4
 271  * End:
 272  * vim600: noet sw=4 ts=4 fdm=marker
 273  * vim<600: noet sw=4 ts=4
 274  */
 275