summaryrefslogtreecommitdiff
path: root/ext/mysqlnd/mysqlnd_driver.c
blob: e67d023edb4ca4d716e70c5eb663dc1e25ff38b0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
/*
  +----------------------------------------------------------------------+
  | PHP Version 7                                                        |
  +----------------------------------------------------------------------+
  | Copyright (c) 2006-2014 The PHP Group                                |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | http://www.php.net/license/3_01.txt                                  |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Authors: Andrey Hristov <andrey@mysql.com>                           |
  |          Ulf Wendel <uwendel@mysql.com>                              |
  |          Georg Richter <georg@mysql.com>                             |
  +----------------------------------------------------------------------+
*/

/* $Id: mysqlnd.c 317989 2011-10-10 20:49:28Z andrey $ */
#include "php.h"
#include "mysqlnd.h"
#include "mysqlnd_wireprotocol.h"
#include "mysqlnd_priv.h"
#include "mysqlnd_result.h"
#include "mysqlnd_statistics.h"
#include "mysqlnd_charset.h"
#include "mysqlnd_debug.h"
#include "mysqlnd_reverse_api.h"
#include "mysqlnd_ext_plugin.h"

static zend_bool mysqlnd_library_initted = FALSE;

static struct st_mysqlnd_plugin_core mysqlnd_plugin_core =
{
	{
		MYSQLND_PLUGIN_API_VERSION,
		"mysqlnd",
		MYSQLND_VERSION_ID,
		MYSQLND_VERSION,
		"PHP License 3.01",
		"Andrey Hristov <andrey@mysql.com>,  Ulf Wendel <uwendel@mysql.com>, Georg Richter <georg@mysql.com>",
		{
			NULL, /* will be filled later */
			mysqlnd_stats_values_names,
		},
		{
			NULL /* plugin shutdown */
		}
	}
};


/* {{{ mysqlnd_library_end */
PHPAPI void mysqlnd_library_end(TSRMLS_D)
{
	if (mysqlnd_library_initted == TRUE) {
		mysqlnd_plugin_subsystem_end(TSRMLS_C);
		mysqlnd_stats_end(mysqlnd_global_stats);
		mysqlnd_global_stats = NULL;
		mysqlnd_library_initted = FALSE;
		mysqlnd_reverse_api_end(TSRMLS_C);
	}
}
/* }}} */


/* {{{ mysqlnd_library_init */
PHPAPI void mysqlnd_library_init(TSRMLS_D)
{
	if (mysqlnd_library_initted == FALSE) {
		mysqlnd_library_initted = TRUE;
		mysqlnd_conn_set_methods(&MYSQLND_CLASS_METHOD_TABLE_NAME(mysqlnd_conn));
		mysqlnd_conn_data_set_methods(&MYSQLND_CLASS_METHOD_TABLE_NAME(mysqlnd_conn_data));
		_mysqlnd_init_ps_subsystem();
		/* Should be calloc, as mnd_calloc will reference LOCK_access*/
		mysqlnd_stats_init(&mysqlnd_global_stats, STAT_LAST);
		mysqlnd_plugin_subsystem_init(TSRMLS_C);
		{
			mysqlnd_plugin_core.plugin_header.plugin_stats.values = mysqlnd_global_stats;
			mysqlnd_plugin_register_ex((struct st_mysqlnd_plugin_header *) &mysqlnd_plugin_core TSRMLS_CC);
		}
#if defined(MYSQLND_DBG_ENABLED) && MYSQLND_DBG_ENABLED == 1
		mysqlnd_example_plugin_register(TSRMLS_C);
#endif
		mysqlnd_debug_trace_plugin_register(TSRMLS_C);
		mysqlnd_register_builtin_authentication_plugins(TSRMLS_C);

		mysqlnd_reverse_api_init(TSRMLS_C);
	}
}
/* }}} */



/* {{{ mysqlnd_error_list_pdtor */
static void
mysqlnd_error_list_pdtor(void * pDest)
{
	MYSQLND_ERROR_LIST_ELEMENT * element = (MYSQLND_ERROR_LIST_ELEMENT *) pDest;
#ifdef ZTS
	TSRMLS_FETCH();
#endif
	DBG_ENTER("mysqlnd_error_list_pdtor");
	if (element->error) {
		mnd_pefree(element->error, TRUE);
	}
	DBG_VOID_RETURN;
}
/* }}} */


/* {{{ mysqlnd_object_factory::get_connection */
static MYSQLND *
MYSQLND_METHOD(mysqlnd_object_factory, get_connection)(zend_bool persistent TSRMLS_DC)
{
	size_t alloc_size_ret = sizeof(MYSQLND) + mysqlnd_plugin_count() * sizeof(void *);
	size_t alloc_size_ret_data = sizeof(MYSQLND_CONN_DATA) + mysqlnd_plugin_count() * sizeof(void *);
	MYSQLND * new_object;
	MYSQLND_CONN_DATA * data;

	DBG_ENTER("mysqlnd_driver::get_connection");
	DBG_INF_FMT("persistent=%u", persistent);
	new_object = mnd_pecalloc(1, alloc_size_ret, persistent);
	if (!new_object) {
		DBG_RETURN(NULL);
	}
	new_object->data = mnd_pecalloc(1, alloc_size_ret_data, persistent);
	if (!new_object->data) {
		mnd_pefree(new_object, persistent);
		DBG_RETURN(NULL);
	}
	new_object->persistent = persistent;
	new_object->m = mysqlnd_conn_get_methods();
	data = new_object->data;

	data->error_info = &(data->error_info_impl);
	data->options = &(data->options_impl);
	data->upsert_status = &(data->upsert_status_impl);

	data->persistent = persistent;
	data->m = mysqlnd_conn_data_get_methods();
	CONN_SET_STATE(data, CONN_ALLOCED);
	data->m->get_reference(data TSRMLS_CC);

	if (PASS != data->m->init(data TSRMLS_CC)) {
		new_object->m->dtor(new_object TSRMLS_CC);
		DBG_RETURN(NULL);
	}

	data->error_info->error_list = mnd_pecalloc(1, sizeof(zend_llist), persistent);
	if (!data->error_info->error_list) {
		new_object->m->dtor(new_object TSRMLS_CC);
		DBG_RETURN(NULL);
	} else {
		zend_llist_init(data->error_info->error_list, sizeof(MYSQLND_ERROR_LIST_ELEMENT), (llist_dtor_func_t)mysqlnd_error_list_pdtor, persistent);
	}

	DBG_RETURN(new_object);
}
/* }}} */


/* {{{ mysqlnd_object_factory::clone_connection_object */
static MYSQLND *
MYSQLND_METHOD(mysqlnd_object_factory, clone_connection_object)(MYSQLND * to_be_cloned TSRMLS_DC)
{
	size_t alloc_size_ret = sizeof(MYSQLND) + mysqlnd_plugin_count() * sizeof(void *);
	MYSQLND * new_object;

	DBG_ENTER("mysqlnd_driver::clone_connection_object");
	DBG_INF_FMT("persistent=%u", to_be_cloned->persistent);
	if (!to_be_cloned || !to_be_cloned->data) {
		DBG_RETURN(NULL);
	}
	new_object = mnd_pecalloc(1, alloc_size_ret, to_be_cloned->persistent);
	if (!new_object) {
		DBG_RETURN(NULL);
	}
	new_object->persistent = to_be_cloned->persistent;
	new_object->m = to_be_cloned->m;

	new_object->data = to_be_cloned->data->m->get_reference(to_be_cloned->data TSRMLS_CC);
	if (!new_object->data) {
		new_object->m->dtor(new_object TSRMLS_CC);
		new_object = NULL;
	}
	DBG_RETURN(new_object);
}
/* }}} */


/* {{{ mysqlnd_object_factory::get_prepared_statement */
static MYSQLND_STMT *
MYSQLND_METHOD(mysqlnd_object_factory, get_prepared_statement)(MYSQLND_CONN_DATA * const conn TSRMLS_DC)
{
	size_t alloc_size = sizeof(MYSQLND_STMT) + mysqlnd_plugin_count() * sizeof(void *);
	MYSQLND_STMT * ret = mnd_pecalloc(1, alloc_size, conn->persistent);
	MYSQLND_STMT_DATA * stmt = NULL;

	DBG_ENTER("mysqlnd_object_factory::get_prepared_statement");
	do {
		if (!ret) {
			break;
		}
		ret->m = mysqlnd_stmt_get_methods();
		ret->persistent = conn->persistent;

		stmt = ret->data = mnd_pecalloc(1, sizeof(MYSQLND_STMT_DATA), conn->persistent);
		DBG_INF_FMT("stmt=%p", stmt);
		if (!stmt) {
			break;
		}
		stmt->persistent = conn->persistent;
		stmt->error_info = &(stmt->error_info_impl);
		stmt->upsert_status = &(stmt->upsert_status_impl);
		stmt->state = MYSQLND_STMT_INITTED;
		stmt->execute_cmd_buffer.length = 4096;
		stmt->execute_cmd_buffer.buffer = mnd_pemalloc(stmt->execute_cmd_buffer.length, stmt->persistent);
		if (!stmt->execute_cmd_buffer.buffer) {
			break;
		}

		stmt->prefetch_rows = MYSQLND_DEFAULT_PREFETCH_ROWS;
		/*
		  Mark that we reference the connection, thus it won't be
		  be destructed till there is open statements. The last statement
		  or normal query result will close it then.
		*/
		stmt->conn = conn->m->get_reference(conn TSRMLS_CC);
		stmt->error_info->error_list = mnd_pecalloc(1, sizeof(zend_llist), ret->persistent);
		if (!stmt->error_info->error_list) {
			break;
		}

		zend_llist_init(stmt->error_info->error_list, sizeof(MYSQLND_ERROR_LIST_ELEMENT), (llist_dtor_func_t) mysqlnd_error_list_pdtor, conn->persistent);

		DBG_RETURN(ret);
	} while (0);

	SET_OOM_ERROR(*conn->error_info);
	if (ret) {
		ret->m->dtor(ret, TRUE TSRMLS_CC);
		ret = NULL;
	}
	DBG_RETURN(NULL);
}
/* }}} */


/* {{{ mysqlnd_object_factory::get_io_channel */
PHPAPI MYSQLND_NET *
MYSQLND_METHOD(mysqlnd_object_factory, get_io_channel)(zend_bool persistent, MYSQLND_STATS * stats, MYSQLND_ERROR_INFO * error_info TSRMLS_DC)
{
	size_t net_alloc_size = sizeof(MYSQLND_NET) + mysqlnd_plugin_count() * sizeof(void *);
	size_t net_data_alloc_size = sizeof(MYSQLND_NET_DATA) + mysqlnd_plugin_count() * sizeof(void *);
	MYSQLND_NET * net = mnd_pecalloc(1, net_alloc_size, persistent);
	MYSQLND_NET_DATA * net_data = mnd_pecalloc(1, net_data_alloc_size, persistent);

	DBG_ENTER("mysqlnd_object_factory::get_io_channel");
	DBG_INF_FMT("persistent=%u", persistent);
	if (net && net_data) {
		net->data = net_data;
		net->persistent = net->data->persistent = persistent;
		net->data->m = *mysqlnd_net_get_methods();

		if (PASS != net->data->m.init(net, stats, error_info TSRMLS_CC)) {
			net->data->m.dtor(net, stats, error_info TSRMLS_CC);
			net = NULL;
		}
	} else {
		if (net_data) {
			mnd_pefree(net_data, persistent);
			net_data = NULL;
		}
		if (net) {
			mnd_pefree(net, persistent);
			net = NULL;
		}
	}
	DBG_RETURN(net);
}
/* }}} */


/* {{{ mysqlnd_object_factory::get_protocol_decoder */
static MYSQLND_PROTOCOL *
MYSQLND_METHOD(mysqlnd_object_factory, get_protocol_decoder)(zend_bool persistent TSRMLS_DC)
{
	size_t alloc_size = sizeof(MYSQLND_PROTOCOL) + mysqlnd_plugin_count() * sizeof(void *);
	MYSQLND_PROTOCOL *ret = mnd_pecalloc(1, alloc_size, persistent);

	DBG_ENTER("mysqlnd_object_factory::get_protocol_decoder");
	DBG_INF_FMT("persistent=%u", persistent);
	if (ret) {
		ret->persistent = persistent;
		ret->m = mysqlnd_mysqlnd_protocol_methods;
	}

	DBG_RETURN(ret);
}
/* }}} */


PHPAPI MYSQLND_CLASS_METHODS_START(mysqlnd_object_factory)
	MYSQLND_METHOD(mysqlnd_object_factory, get_connection),
	MYSQLND_METHOD(mysqlnd_object_factory, clone_connection_object),
	MYSQLND_METHOD(mysqlnd_object_factory, get_prepared_statement),
	MYSQLND_METHOD(mysqlnd_object_factory, get_io_channel),
	MYSQLND_METHOD(mysqlnd_object_factory, get_protocol_decoder)
MYSQLND_CLASS_METHODS_END;

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: noet sw=4 ts=4 fdm=marker
 * vim<600: noet sw=4 ts=4
 */