1 /**
2  * Copyright 2015-2017 DataStax, Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "php_driver.h"
18 #include "php_driver_globals.h"
19 #include "php_driver_types.h"
20 #include "util/future.h"
21 #include "util/ref.h"
22 
23 zend_class_entry *php_driver_default_cluster_ce = NULL;
24 
25 static void
free_session(void * session)26 free_session(void *session)
27 {
28   cass_session_free((CassSession*) session);
29 }
30 
PHP_METHOD(DefaultCluster,connect)31 PHP_METHOD(DefaultCluster, connect)
32 {
33   char *keyspace = NULL;
34   php5to7_size keyspace_len;
35   zval *timeout = NULL;
36   php_driver_cluster *self = NULL;
37   php_driver_session *session = NULL;
38   CassFuture *future = NULL;
39   char *hash_key;
40   php5to7_size hash_key_len = 0;
41   php_driver_psession *psession;
42 
43 
44   if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|sz", &keyspace, &keyspace_len, &timeout) == FAILURE) {
45     return;
46   }
47 
48   self = PHP_DRIVER_GET_CLUSTER(getThis());
49 
50   object_init_ex(return_value, php_driver_default_session_ce);
51   session = PHP_DRIVER_GET_SESSION(return_value);
52 
53   session->default_consistency = self->default_consistency;
54   session->default_page_size   = self->default_page_size;
55   session->persist             = self->persist;
56 
57   if (!PHP5TO7_ZVAL_IS_UNDEF(session->default_timeout)) {
58     PHP5TO7_ZVAL_COPY(PHP5TO7_ZVAL_MAYBE_P(session->default_timeout),
59                       PHP5TO7_ZVAL_MAYBE_P(self->default_timeout));
60   }
61 
62   if (session->persist) {
63     php5to7_zend_resource_le *le;
64 
65     hash_key_len = spprintf(&hash_key, 0, "%s:session:%s",
66                             self->hash_key, SAFE_STR(keyspace));
67 
68     if (PHP5TO7_ZEND_HASH_FIND(&EG(persistent_list), hash_key, hash_key_len + 1, le) &&
69         Z_RES_P(le)->type == php_le_php_driver_session()) {
70       psession = (php_driver_psession *) Z_RES_P(le)->ptr;
71       session->session = php_driver_add_ref(psession->session);
72       future = psession->future;
73     }
74   }
75 
76   if (future == NULL) {
77     php5to7_zend_resource_le resource;
78 
79     session->session = php_driver_new_peref(cass_session_new(), free_session, 1);
80 
81     if (keyspace) {
82       future = cass_session_connect_keyspace((CassSession *) session->session->data,
83                                              self->cluster,
84                                              keyspace);
85     } else {
86       future = cass_session_connect((CassSession *) session->session->data,
87                                     self->cluster);
88     }
89 
90     if (session->persist) {
91       psession = (php_driver_psession *) pecalloc(1, sizeof(php_driver_psession), 1);
92       psession->session = php_driver_add_ref(session->session);
93       psession->future  = future;
94 
95 #if PHP_MAJOR_VERSION >= 7
96       ZVAL_NEW_PERSISTENT_RES(&resource, 0, psession, php_le_php_driver_session());
97       PHP5TO7_ZEND_HASH_UPDATE(&EG(persistent_list), hash_key, hash_key_len + 1, &resource, sizeof(php5to7_zend_resource_le));
98       PHP_DRIVER_G(persistent_sessions)++;
99 #else
100       resource.type = php_le_php_driver_session();
101       resource.ptr = psession;
102       PHP5TO7_ZEND_HASH_UPDATE(&EG(persistent_list), hash_key, hash_key_len + 1, resource, sizeof(php5to7_zend_resource_le));
103       PHP_DRIVER_G(persistent_sessions)++;
104 #endif
105     }
106   }
107 
108   if (php_driver_future_wait_timed(future, timeout TSRMLS_CC) == FAILURE) {
109     if (session->persist) {
110       efree(hash_key);
111     } else {
112       cass_future_free(future);
113     }
114 
115     return;
116   }
117 
118   if (php_driver_future_is_error(future TSRMLS_CC) == FAILURE) {
119     if (session->persist) {
120       (void) PHP5TO7_ZEND_HASH_DEL(&EG(persistent_list), hash_key, hash_key_len + 1);
121       efree(hash_key);
122     } else {
123       cass_future_free(future);
124     }
125 
126     return;
127   }
128 
129   if (session->persist)
130     efree(hash_key);
131 }
132 
PHP_METHOD(DefaultCluster,connectAsync)133 PHP_METHOD(DefaultCluster, connectAsync)
134 {
135   char *hash_key = NULL;
136   php5to7_size hash_key_len = 0;
137   char *keyspace = NULL;
138   php5to7_size keyspace_len;
139   php_driver_cluster *self = NULL;
140   php_driver_future_session *future = NULL;
141 
142   if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &keyspace, &keyspace_len) == FAILURE) {
143     return;
144   }
145 
146   self = PHP_DRIVER_GET_CLUSTER(getThis());
147 
148   object_init_ex(return_value, php_driver_future_session_ce);
149   future = PHP_DRIVER_GET_FUTURE_SESSION(return_value);
150 
151   future->persist = self->persist;
152 
153   if (self->persist) {
154     php5to7_zend_resource_le *le;
155 
156     hash_key_len = spprintf(&hash_key, 0, "%s:session:%s",
157                             self->hash_key, SAFE_STR(keyspace));
158 
159     future->hash_key     = hash_key;
160     future->hash_key_len = hash_key_len;
161 
162     if (PHP5TO7_ZEND_HASH_FIND(&EG(persistent_list), hash_key, hash_key_len + 1, le) &&
163         Z_RES_P(le)->type == php_le_php_driver_session()) {
164       php_driver_psession *psession = (php_driver_psession *) Z_RES_P(le)->ptr;
165       future->session = php_driver_add_ref(psession->session);
166       future->future  = psession->future;
167       return;
168     }
169   }
170 
171   future->session = php_driver_new_peref(cass_session_new(), free_session, 1);
172 
173   if (keyspace) {
174     future->future = cass_session_connect_keyspace((CassSession *) future->session->data,
175                                                    self->cluster,
176                                                    keyspace);
177   } else {
178     future->future = cass_session_connect((CassSession *) future->session->data,
179                                           self->cluster);
180   }
181 
182   if (self->persist) {
183     php5to7_zend_resource_le resource;
184     php_driver_psession *psession =
185       (php_driver_psession *) pecalloc(1, sizeof(php_driver_psession), 1);
186     psession->session = php_driver_add_ref(future->session);
187     psession->future  = future->future;
188 
189 #if PHP_MAJOR_VERSION >= 7
190     ZVAL_NEW_PERSISTENT_RES(&resource, 0, psession, php_le_php_driver_session());
191     PHP5TO7_ZEND_HASH_UPDATE(&EG(persistent_list), hash_key, hash_key_len + 1, &resource, sizeof(php5to7_zend_resource_le));
192     PHP_DRIVER_G(persistent_sessions)++;
193 #else
194       resource.type = php_le_php_driver_session();
195       resource.ptr = psession;
196       PHP5TO7_ZEND_HASH_UPDATE(&EG(persistent_list), hash_key, hash_key_len + 1, resource, sizeof(php5to7_zend_resource_le));
197       PHP_DRIVER_G(persistent_sessions)++;
198 #endif
199 
200   }
201 }
202 
203 ZEND_BEGIN_ARG_INFO_EX(arginfo_connect, 0, ZEND_RETURN_VALUE, 0)
204   ZEND_ARG_INFO(0, keyspace)
205   ZEND_ARG_INFO(0, timeout)
206 ZEND_END_ARG_INFO()
207 
208 ZEND_BEGIN_ARG_INFO_EX(arginfo_connectAsync, 0, ZEND_RETURN_VALUE, 0)
209   ZEND_ARG_INFO(0, keyspace)
210 ZEND_END_ARG_INFO()
211 
212 static zend_function_entry php_driver_default_cluster_methods[] = {
213   PHP_ME(DefaultCluster, connect, arginfo_connect, ZEND_ACC_PUBLIC)
214   PHP_ME(DefaultCluster, connectAsync, arginfo_connectAsync, ZEND_ACC_PUBLIC)
215   PHP_FE_END
216 };
217 
218 static zend_object_handlers php_driver_default_cluster_handlers;
219 
220 static HashTable *
php_driver_default_cluster_properties(zval * object TSRMLS_DC)221 php_driver_default_cluster_properties(zval *object TSRMLS_DC)
222 {
223   HashTable *props = zend_std_get_properties(object TSRMLS_CC);
224 
225   return props;
226 }
227 
228 static int
php_driver_default_cluster_compare(zval * obj1,zval * obj2 TSRMLS_DC)229 php_driver_default_cluster_compare(zval *obj1, zval *obj2 TSRMLS_DC)
230 {
231   if (Z_OBJCE_P(obj1) != Z_OBJCE_P(obj2))
232     return 1; /* different classes */
233 
234   return Z_OBJ_HANDLE_P(obj1) != Z_OBJ_HANDLE_P(obj1);
235 }
236 
237 static void
php_driver_default_cluster_free(php5to7_zend_object_free * object TSRMLS_DC)238 php_driver_default_cluster_free(php5to7_zend_object_free *object TSRMLS_DC)
239 {
240   php_driver_cluster *self = PHP5TO7_ZEND_OBJECT_GET(cluster, object);
241 
242   if (self->persist) {
243     efree(self->hash_key);
244   } else {
245     if (self->cluster) {
246       cass_cluster_free(self->cluster);
247     }
248   }
249 
250   PHP5TO7_ZVAL_MAYBE_DESTROY(self->default_timeout);
251 
252   zend_object_std_dtor(&self->zval TSRMLS_CC);
253   PHP5TO7_MAYBE_EFREE(self);
254 }
255 
256 static php5to7_zend_object
php_driver_default_cluster_new(zend_class_entry * ce TSRMLS_DC)257 php_driver_default_cluster_new(zend_class_entry *ce TSRMLS_DC)
258 {
259   php_driver_cluster *self =
260       PHP5TO7_ZEND_OBJECT_ECALLOC(cluster, ce);
261 
262   self->cluster             = NULL;
263   self->default_consistency = PHP_DRIVER_DEFAULT_CONSISTENCY;
264   self->default_page_size   = 5000;
265   self->persist             = 0;
266   self->hash_key            = NULL;
267 
268   PHP5TO7_ZVAL_UNDEF(self->default_timeout);
269 
270   PHP5TO7_ZEND_OBJECT_INIT_EX(cluster, default_cluster, self, ce);
271 }
272 
php_driver_define_DefaultCluster(TSRMLS_D)273 void php_driver_define_DefaultCluster(TSRMLS_D)
274 {
275   zend_class_entry ce;
276 
277   INIT_CLASS_ENTRY(ce, PHP_DRIVER_NAMESPACE "\\DefaultCluster", php_driver_default_cluster_methods);
278   php_driver_default_cluster_ce = zend_register_internal_class(&ce TSRMLS_CC);
279   zend_class_implements(php_driver_default_cluster_ce TSRMLS_CC, 1, php_driver_cluster_ce);
280   php_driver_default_cluster_ce->ce_flags     |= PHP5TO7_ZEND_ACC_FINAL;
281   php_driver_default_cluster_ce->create_object = php_driver_default_cluster_new;
282 
283   memcpy(&php_driver_default_cluster_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
284   php_driver_default_cluster_handlers.get_properties  = php_driver_default_cluster_properties;
285   php_driver_default_cluster_handlers.compare_objects = php_driver_default_cluster_compare;
286 }
287