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 ZEND_EXTERN_MODULE_GLOBALS(http);
  38
  39 static void http_request_pool_freebody(http_request_body **body);
  40 static int http_request_pool_compare_handles(void *h1, void *h2);
  41
  42 /* {{{ http_request_pool *http_request_pool_init(http_request_pool *) */
  43 PHP_HTTP_API http_request_pool *_http_request_pool_init(http_request_pool *pool TSRMLS_DC)
  44 {
  45         zend_bool free_pool;
  46 #if HTTP_DEBUG_REQPOOLS
  47         fprintf(stderr, "Initializing request pool %p\n", pool);
  48 #endif
  49         if ((free_pool = (!pool))) {
  50                 pool = emalloc(sizeof(http_request_pool));
  51                 pool->ch = NULL;
  52         }
  53
  54         if (!pool->ch) {
  55                 if (!(pool->ch = curl_multi_init())) {
  56                         http_error(HE_WARNING, HTTP_E_REQUEST, "Could not initialize curl");
  57                         if (free_pool) {
  58                                 efree(pool);
  59                         }
  60                         return NULL;
  61                 }
  62         }
  63
  64         pool->unfinished = 0;
  65         zend_llist_init(&pool->handles, sizeof(zval *), (llist_dtor_func_t) ZVAL_PTR_DTOR, 0);
  66         zend_llist_init(&pool->bodies, sizeof(http_request_body *), (llist_dtor_func_t) http_request_pool_freebody, 0);
  67 #if HTTP_DEBUG_REQPOOLS
  68         fprintf(stderr, "Initialized request pool %p\n", pool);
  69 #endif
  70         return pool;
  71 }
  72 /* }}} */
  73
  74 /* {{{ STATUS http_request_pool_attach(http_request_pool *, zval *) */
  75 PHP_HTTP_API STATUS _http_request_pool_attach(http_request_pool *pool, zval *request TSRMLS_DC)
  76 {
  77         getObjectEx(http_request_object, req, request);
  78 #if HTTP_DEBUG_REQPOOLS
  79         fprintf(stderr, "Attaching HttpRequest(#%d) %p to pool %p\n", Z_OBJ_HANDLE_P(request), req, pool);
  80 #endif
  81         if (req->pool) {
  82                 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");
  83         } else {
  84                 http_request_body *body = http_request_body_new();
  85
  86                 if (SUCCESS != http_request_pool_requesthandler(request, body)) {
  87                         http_error_ex(HE_WARNING, HTTP_E_REQUEST, "Could not initialize HttpRequest object for attaching to the HttpRequestPool");
  88                 } else {
  89                         CURLMcode code = curl_multi_add_handle(pool->ch, req->ch);
  90
  91                         if ((CURLM_OK != code) && (CURLM_CALL_MULTI_PERFORM != code)) {
  92                                 http_error_ex(HE_WARNING, HTTP_E_REQUEST_POOL, "Could not attach HttpRequest object to the HttpRequestPool: %s", curl_multi_strerror(code));
  93                         } else {
  94                                 req->pool = pool;
  95
  96                                 zend_llist_add_element(&pool->handles, &request);
  97                                 zend_llist_add_element(&pool->bodies, &body);
  98
  99                                 zval_add_ref(&request);
 100                                 zend_objects_store_add_ref(request TSRMLS_CC);
 101
 102 #if HTTP_DEBUG_REQPOOLS
 103                                 fprintf(stderr, "> %d HttpRequests attached to pool %p\n", zend_llist_count(&pool->handles), pool);
 104 #endif
 105                                 return SUCCESS;
 106                         }
 107                 }
 108                 efree(body);
 109         }
 110         return FAILURE;
 111 }
 112 /* }}} */
 113
 114 /* {{{ STATUS http_request_pool_detach(http_request_pool *, zval *) */
 115 PHP_HTTP_API STATUS _http_request_pool_detach(http_request_pool *pool, zval *request TSRMLS_DC)
 116 {
 117         getObjectEx(http_request_object, req, request);
 118 #if HTTP_DEBUG_REQPOOLS
 119         fprintf(stderr, "Detaching HttpRequest(#%d) %p from pool %p\n", Z_OBJ_HANDLE_P(request), req, pool);
 120 #endif
 121         if (!req->pool) {
 122                 /* not attached to any pool */
 123 #if HTTP_DEBUG_REQPOOLS
 124                 fprintf(stderr, "HttpRequest object(#%d) %p is not attached to any HttpRequestPool\n", Z_OBJ_HANDLE_P(request), req);
 125 #endif
 126         } else if (req->pool != pool) {
 127                 http_error_ex(HE_WARNING, HTTP_E_INVALID_PARAM, "HttpRequest object(#%d) is not attached to this HttpRequestPool", Z_OBJ_HANDLE_P(request));
 128         } else {
 129                 CURLMcode code;
 130
 131                 req->pool = NULL;
 132                 zend_llist_del_element(&pool->handles, request, http_request_pool_compare_handles);
 133 #if HTTP_DEBUG_REQPOOLS
 134                 fprintf(stderr, "> %d HttpRequests remaining in pool %p\n", zend_llist_count(&pool->handles), pool);
 135 #endif
 136                 if (CURLM_OK != (code = curl_multi_remove_handle(pool->ch, req->ch))) {
 137                         http_error_ex(HE_WARNING, HTTP_E_REQUEST_POOL, "Could not detach HttpRequest object from the HttpRequestPool: %s", curl_multi_strerror(code));
 138                 } else {
 139                         return SUCCESS;
 140                 }
 141         }
 142         return FAILURE;
 143 }
 144 /* }}} */
 145
 146 /* {{{ void http_request_pool_detach_all(http_request_pool *) */
 147 PHP_HTTP_API void _http_request_pool_detach_all(http_request_pool *pool TSRMLS_DC)
 148 {
 149         int count = zend_llist_count(&pool->handles);
 150 #if HTTP_DEBUG_REQPOOLS
 151         fprintf(stderr, "Detaching %d requests from pool %p\n", count, pool);
 152 #endif
 153         /*
 154          * we cannot apply a function to the llist which actually detaches
 155          * the curl handle *and* removes the llist element --
 156          * so let's get our hands dirty
 157          */
 158         if (count) {
 159                 int i = 0;
 160                 zend_llist_position pos;
 161                 zval **handle, **handles = emalloc(count * sizeof(zval *));
 162
 163                 for (handle = zend_llist_get_first_ex(&pool->handles, &pos); handle; handle = zend_llist_get_next_ex(&pool->handles, &pos)) {
 164                         handles[i++] = *handle;
 165                 }
 166                 for (i = 0; i < count; ++i) {
 167                         http_request_pool_detach(pool, handles[i]);
 168                 }
 169                 efree(handles);
 170         }
 171 }
 172
 173
 174 /* {{{ STATUS http_request_pool_send(http_request_pool *) */
 175 PHP_HTTP_API STATUS _http_request_pool_send(http_request_pool *pool TSRMLS_DC)
 176 {
 177 #if HTTP_DEBUG_REQPOOLS
 178         fprintf(stderr, "Attempt to send %d requests of pool %p\n", zend_llist_count(&pool->handles), pool);
 179 #endif
 180         while (http_request_pool_perform(pool)) {
 181 #if HTTP_DEBUG_REQPOOLS
 182                 fprintf(stderr, "> %d unfinished requests of pool %p remaining\n", pool->unfinished, pool);
 183 #endif
 184                 if (SUCCESS != http_request_pool_select(pool)) {
 185                         http_error(HE_WARNING, HTTP_E_SOCKET, "Socket error");
 186                         return FAILURE;
 187                 }
 188         }
 189 #if HTTP_DEBUG_REQPOOLS
 190         fprintf(stderr, "Finished sending %d HttpRequests of pool %p (still unfinished: %d)\n", zend_llist_count(&pool->handles), pool, pool->unfinished);
 191 #endif
 192         zend_llist_apply(&pool->handles, (llist_apply_func_t) http_request_pool_responsehandler TSRMLS_CC);
 193         return SUCCESS;
 194 }
 195 /* }}} */
 196
 197 /* {{{ void http_request_pool_dtor(http_request_pool *) */
 198 PHP_HTTP_API void _http_request_pool_dtor(http_request_pool *pool TSRMLS_DC)
 199 {
 200 #if HTTP_DEBUG_REQPOOLS
 201         fprintf(stderr, "Destructing request pool %p\n", pool);
 202 #endif
 203         pool->unfinished = 0;
 204         zend_llist_clean(&pool->handles);
 205         zend_llist_clean(&pool->bodies);
 206         curl_multi_cleanup(pool->ch);
 207 }
 208 /* }}} */
 209
 210 /* {{{ STATUS http_request_pool_select(http_request_pool *) */
 211 PHP_HTTP_API STATUS _http_request_pool_select(http_request_pool *pool)
 212 {
 213         int MAX;
 214         fd_set R, W, E;
 215         struct timeval timeout = {1, 0};
 216
 217         FD_ZERO(&R);
 218         FD_ZERO(&W);
 219         FD_ZERO(&E);
 220
 221         curl_multi_fdset(pool->ch, &R, &W, &E, &MAX);
 222         return (-1 != select(MAX + 1, &R, &W, &E, &timeout)) ? SUCCESS : FAILURE;
 223 }
 224 /* }}} */
 225
 226 /* {{{ int http_request_pool_perform(http_request_pool *) */
 227 PHP_HTTP_API int _http_request_pool_perform(http_request_pool *pool)
 228 {
 229         while (CURLM_CALL_MULTI_PERFORM == curl_multi_perform(pool->ch, &pool->unfinished));
 230         return pool->unfinished;
 231 }
 232 /* }}} */
 233
 234 /* {{{ STATUS http_request_pool_requesthandler(zval *, http_request_body *) */
 235 STATUS _http_request_pool_requesthandler(zval *request, http_request_body *body TSRMLS_DC)
 236 {
 237         getObjectEx(http_request_object, req, request);
 238         if (SUCCESS == http_request_object_requesthandler(req, request, body)) {
 239                 http_request_conv(req->ch, &req->response, &req->request);
 240                 return SUCCESS;
 241         }
 242         return FAILURE;
 243 }
 244 /* }}} */
 245
 246 /* {{{ void http_request_pool_responsehandler(zval **) */
 247 void _http_request_pool_responsehandler(zval **req TSRMLS_DC)
 248 {
 249         getObjectEx(http_request_object, obj, *req);
 250 #if HTTP_DEBUG_REQPOOLS
 251         fprintf(stderr, "Fetching data from HttpRequest(#%d) %p of pool %p\n", Z_OBJ_HANDLE_PP(req), obj, obj->pool);
 252 #endif
 253         http_request_object_responsehandler(obj, *req);
 254 }
 255 /* }}} */
 256
 257 /*#*/
 258
 259 /* {{{ static void http_request_pool_freebody(http_request_body **) */
 260 static void http_request_pool_freebody(http_request_body **body)
 261 {
 262         TSRMLS_FETCH();
 263         http_request_body_free(*body);
 264 }
 265 /* }}} */
 266
 267 /* {{{ static int http_request_pool_compare_handles(void *, void *) */
 268 static int http_request_pool_compare_handles(void *h1, void *h2)
 269 {
 270         int match = (Z_OBJ_HANDLE_PP((zval **) h1) == Z_OBJ_HANDLE_P((zval *) h2));
 271 #if HTTP_DEBUG_REQPOOLS
 272         /* if(match) fprintf(stderr, "OK\n"); */
 273 #endif
 274         return match;
 275 }
 276 /* }}} */
 277
 278 #endif /* ZEND_ENGINE_2 && HTTP_HAVE_CURL */
 279
 280
 281 /*
 282  * Local variables:
 283  * tab-width: 4
 284  * c-basic-offset: 4
 285  * End:
 286  * vim600: noet sw=4 ts=4 fdm=marker
 287  * vim<600: noet sw=4 ts=4
 288  */
 289