Turn "pdo_stmt_methods" into constants.

ext/pdo/php_pdo_driver.h

@@ -563,7 +563,7 @@ struct pdo_bound_param_data {
 /* represents a prepared statement */
 struct _pdo_stmt_t {
 	/* driver specifics */
-	struct pdo_stmt_methods *methods;
+	const struct pdo_stmt_methods *methods;
 	void *driver_data;
 
 	/* if true, we've already successfully executed this statement at least

ext/pdo_dblib/dblib_stmt.c

@@ -554,7 +554,7 @@ static int pdo_dblib_stmt_get_column_meta(pdo_stmt_t *stmt, zend_long colno, zva
 }
 
 
-struct pdo_stmt_methods dblib_stmt_methods = {
+const struct pdo_stmt_methods dblib_stmt_methods = {
 	pdo_dblib_stmt_dtor,
 	pdo_dblib_stmt_execute,
 	pdo_dblib_stmt_fetch,

ext/pdo_dblib/php_pdo_dblib_int.h

@@ -105,7 +105,7 @@ int pdo_dblib_msg_handler(DBPROCESS *dbproc, DBINT msgno, int msgstate,
 	int severity, char *msgtext, char *srvname, char *procname, DBUSMALLINT line);
 
 extern const pdo_driver_t pdo_dblib_driver;
-extern struct pdo_stmt_methods dblib_stmt_methods;
+extern const struct pdo_stmt_methods dblib_stmt_methods;
 
 typedef struct {
 	int severity;

ext/pdo_firebird/firebird_statement.c

@@ -761,7 +761,7 @@ static int firebird_stmt_cursor_closer(pdo_stmt_t *stmt) /* {{{ */
 /* }}} */
 
 
-struct pdo_stmt_methods firebird_stmt_methods = { /* {{{ */
+const struct pdo_stmt_methods firebird_stmt_methods = { /* {{{ */
 	firebird_stmt_dtor,
 	firebird_stmt_execute,
 	firebird_stmt_fetch,

ext/pdo_firebird/php_pdo_firebird_int.h

@@ -132,7 +132,7 @@ typedef struct {
 
 extern const pdo_driver_t pdo_firebird_driver;
 
-extern struct pdo_stmt_methods firebird_stmt_methods;
+extern const struct pdo_stmt_methods firebird_stmt_methods;
 
 void _firebird_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, char const *file, zend_long line);
 

ext/pdo_mysql/mysql_statement.c

@@ -923,7 +923,7 @@ static int pdo_mysql_stmt_cursor_closer(pdo_stmt_t *stmt) /* {{{ */
 }
 /* }}} */
 
-struct pdo_stmt_methods mysql_stmt_methods = {
+const struct pdo_stmt_methods mysql_stmt_methods = {
 	pdo_mysql_stmt_dtor,
 	pdo_mysql_stmt_execute,
 	pdo_mysql_stmt_fetch,

ext/pdo_mysql/php_pdo_mysql_int.h

@@ -155,7 +155,7 @@ extern int _pdo_mysql_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file,
 #define pdo_mysql_error(s) _pdo_mysql_error(s, NULL, __FILE__, __LINE__)
 #define pdo_mysql_error_stmt(s) _pdo_mysql_error(stmt->dbh, stmt, __FILE__, __LINE__)
 
-extern struct pdo_stmt_methods mysql_stmt_methods;
+extern const struct pdo_stmt_methods mysql_stmt_methods;
 
 enum {
 	PDO_MYSQL_ATTR_USE_BUFFERED_QUERY = PDO_ATTR_DRIVER_SPECIFIC,

ext/pdo_oci/oci_statement.c

@@ -795,7 +795,7 @@ static int oci_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, size_t *len
 	}
 } /* }}} */
 
-struct pdo_stmt_methods oci_stmt_methods = {
+const struct pdo_stmt_methods oci_stmt_methods = {
 	oci_stmt_dtor,
 	oci_stmt_execute,
 	oci_stmt_fetch,

ext/pdo_oci/php_pdo_oci_int.h

@@ -93,7 +93,7 @@ ub4 _oci_error(OCIError *err, pdo_dbh_t *dbh, pdo_stmt_t *stmt, char *what, swor
 #define oci_drv_error(w)	_oci_error(H->err, dbh, NULL, w, H->last_err, FALSE, __FILE__, __LINE__)
 #define oci_stmt_error(w)	_oci_error(S->err, stmt->dbh, stmt, w, S->last_err, FALSE, __FILE__, __LINE__)
 
-extern struct pdo_stmt_methods oci_stmt_methods;
+extern const struct pdo_stmt_methods oci_stmt_methods;
 
 /* Default prefetch size in number of rows */
 #define PDO_OCI_PREFETCH_DEFAULT 100

ext/pdo_odbc/odbc_stmt.c

@@ -856,7 +856,7 @@ static int odbc_stmt_next_rowset(pdo_stmt_t *stmt)
 	return 1;
 }
 
-struct pdo_stmt_methods odbc_stmt_methods = {
+const struct pdo_stmt_methods odbc_stmt_methods = {
 	odbc_stmt_dtor,
 	odbc_stmt_execute,
 	odbc_stmt_fetch,

ext/pdo_odbc/php_pdo_odbc_int.h

@@ -165,7 +165,7 @@ typedef struct {
 } pdo_odbc_param;
 
 extern const pdo_driver_t pdo_odbc_driver;
-extern struct pdo_stmt_methods odbc_stmt_methods;
+extern const struct pdo_stmt_methods odbc_stmt_methods;
 
 void pdo_odbc_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, PDO_ODBC_HSTMT statement, char *what, const char *file, int line);
 #define pdo_odbc_drv_error(what)	pdo_odbc_error(dbh, NULL, SQL_NULL_HSTMT, what, __FILE__, __LINE__)

ext/pdo_pgsql/pgsql_statement.c

@@ -707,7 +707,7 @@ static int pdo_pgsql_stmt_cursor_closer(pdo_stmt_t *stmt)
 	return 1;
 }
 
-struct pdo_stmt_methods pgsql_stmt_methods = {
+const struct pdo_stmt_methods pgsql_stmt_methods = {
 	pgsql_stmt_dtor,
 	pgsql_stmt_execute,
 	pgsql_stmt_fetch,

ext/pdo_pgsql/php_pdo_pgsql_int.h

@@ -85,7 +85,7 @@ extern int _pdo_pgsql_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, int errcode, const
 #define pdo_pgsql_error_stmt(s,e,z)	_pdo_pgsql_error(s->dbh, s, e, z, NULL, __FILE__, __LINE__)
 #define pdo_pgsql_error_stmt_msg(s,e,m)	_pdo_pgsql_error(s->dbh, s, e, NULL, m, __FILE__, __LINE__)
 
-extern struct pdo_stmt_methods pgsql_stmt_methods;
+extern const struct pdo_stmt_methods pgsql_stmt_methods;
 
 #define pdo_pgsql_sqlstate(r) PQresultErrorField(r, PG_DIAG_SQLSTATE)
 

ext/pdo_sqlite/php_pdo_sqlite_int.h

@@ -74,7 +74,7 @@ extern int _pdo_sqlite_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file,
 #define pdo_sqlite_error(s) _pdo_sqlite_error(s, NULL, __FILE__, __LINE__)
 #define pdo_sqlite_error_stmt(s) _pdo_sqlite_error(stmt->dbh, stmt, __FILE__, __LINE__)
 
-extern struct pdo_stmt_methods sqlite_stmt_methods;
+extern const struct pdo_stmt_methods sqlite_stmt_methods;
 
 enum {
 	PDO_SQLITE_ATTR_OPEN_FLAGS = PDO_ATTR_DRIVER_SPECIFIC,

ext/pdo_sqlite/sqlite_statement.c

@@ -352,7 +352,7 @@ static int pdo_sqlite_stmt_cursor_closer(pdo_stmt_t *stmt)
 	return 1;
 }
 
-struct pdo_stmt_methods sqlite_stmt_methods = {
+const struct pdo_stmt_methods sqlite_stmt_methods = {
 	pdo_sqlite_stmt_dtor,
 	pdo_sqlite_stmt_execute,
 	pdo_sqlite_stmt_fetch,