initial import of mysql 3.x pdo driver

1 files changed, 164 insertions, 0 deletions

diff --git a/ext/pdo_mysql/mysql_statement.c b/ext/pdo_mysql/mysql_statement.c
new file mode 100755
index 0000000000..0bd3cb31a6
--- /dev/null
+++ b/ext/pdo_mysql/mysql_statement.c
@@ -0,0 +1,164 @@
+/*
+  +----------------------------------------------------------------------+
+  | PHP Version 5                                                        |
+  +----------------------------------------------------------------------+
+  | Copyright (c) 1997-2004 The PHP Group                                |
+  +----------------------------------------------------------------------+
+  | This source file is subject to version 3.0 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_0.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.               |
+  +----------------------------------------------------------------------+
+  | Author: George Schlossnagle <george@omniti.com>                      |
+  +----------------------------------------------------------------------+
+*/
+
+/* $Id$ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+#include "php_ini.h"
+#include "ext/standard/info.h"
+#include "pdo/php_pdo.h"
+#include "pdo/php_pdo_driver.h"
+#include "php_pdo_mysql.h"
+#include "php_pdo_mysql_int.h"
+
+
+static int mysql_stmt_dtor(pdo_stmt_t *stmt TSRMLS_DC)
+{
+	pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
+	int i;
+
+	if (S->result) {
+		/* free the resource */
+		mysql_free_result(S->result);
+		S->result = NULL;
+	}
+	if(S->cols) {
+		efree(S->cols);
+		S->cols = NULL;
+	}
+	efree(S);
+	return 1;
+}
+
+static int mysql_stmt_execute(pdo_stmt_t *stmt TSRMLS_DC)
+{
+	pdo_dbh_t *dbh = stmt->dbh;
+	pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
+	pdo_mysql_db_handle *H = S->H;
+
+	if (stmt->executed) {
+		/* ensure that we free any previous unfetched results */
+		if(S->result) {
+			mysql_free_result(S->result);
+			S->result = NULL;
+		}
+	}
+	if(mysql_real_query(H->server, stmt->active_query_string, 
+           stmt->active_query_stringlen) != 0) 
+	{
+		H->last_err = S->last_err = mysql_errno(H->server);
+		pdo_mysql_error("execute failed", S->last_err);
+		return 0;
+	}
+	if((S->result = mysql_use_result(H->server)) == NULL) {
+		H->last_err = S->last_err = mysql_errno(H->server);
+		pdo_mysql_error("mysql_use_result() failed", S->last_err);
+		return 0;
+	}
+	if(!stmt->executed) { 
+		stmt->column_count = (int) mysql_num_fields(S->result);
+		S->cols = ecalloc(stmt->column_count, sizeof(pdo_mysql_column));
+	}
+	stmt->row_count = (long)mysql_num_rows(S->result);
+	return 1;
+}
+
+static int mysql_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param,
+		enum pdo_param_event event_type TSRMLS_DC)
+{
+	return 1;
+}
+
+static int mysql_stmt_fetch(pdo_stmt_t *stmt TSRMLS_DC)
+{
+	pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
+
+	if((S->current_data = mysql_fetch_row(S->result)) == NULL) {
+		/* there seems to be no way of distinguishing 'no data' from 'error' */
+		return 0;
+	} 
+	S->current_lengths = mysql_fetch_lengths(S->result);
+	return 1;	
+}
+
+static int mysql_stmt_describe(pdo_stmt_t *stmt, int colno TSRMLS_DC)
+{
+	pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
+	MYSQL_RES *R = S->result;
+	MYSQL_FIELD *F;
+	struct pdo_column_data *cols = stmt->columns;
+	unsigned int num_fields, i;
+
+	/* fetch all on demand, this seems easiest 
+	** if we've been here before bail out 
+	*/
+	if(cols[0].name) {
+		return 1;
+	}
+	num_fields = mysql_num_fields(R);
+	F = mysql_fetch_fields(R);
+	for(i=0; i < num_fields; i++) {
+		int namelen;
+		namelen = strlen(F[i].name);
+		cols[i].precision = F[i].decimals;
+		cols[i].maxlen = F[i].length;
+		cols[i].namelen = namelen;
+		/* FIXME where does this get freed? */
+		cols[i].name = estrndup(F[i].name, namelen + 1);
+		cols[i].param_type = PDO_PARAM_STR;
+	}
+	return 1;
+}
+
+static int mysql_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, unsigned long *len TSRMLS_DC)
+{
+	pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
+	if(S->current_data == NULL) {
+		return 0;
+	}
+	if(colno >= mysql_num_fields(S->result)) {
+		/* error invalid column */
+		pdo_mysql_error("invalid column", 0);
+		return 0;
+	}
+	*ptr = estrndup(S->current_data[colno], S->current_lengths[colno] +1);
+	*len = S->current_lengths[colno];
+	return 1;
+}
+
+struct pdo_stmt_methods mysql_stmt_methods = {
+	mysql_stmt_dtor,
+	mysql_stmt_execute,
+	mysql_stmt_fetch,
+	mysql_stmt_describe,
+	mysql_stmt_get_col,
+	mysql_stmt_param_hook
+};
+
+/*
+ * 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
+ */