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Bug#14013 mysql_stmt_store_result() bombs if a cursor is open

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- Add code to 'mysql_stmt_store_result' to allow it to be called on 
   a prepared statement with open server side cursor.
 - Add tests to mysql_client_test that uses 'mysql_stmt_store_result'
This commit is contained in:
msvensson@neptunus.(none)
2006-02-10 14:50:29 +01:00
parent 102aa5a79f
commit 5000951ab4
3 changed files with 73 additions and 22 deletions
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35
libmysql/libmysql.c
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@ -4757,12 +4757,39 @@ int STDCALL mysql_stmt_store_result(MYSQL_STMT *stmt)
if (!stmt->field_count)
DBUG_RETURN(0);
if ((int) stmt->state < (int) MYSQL_STMT_EXECUTE_DONE ||
mysql->status != MYSQL_STATUS_GET_RESULT)
if ((int) stmt->state < (int) MYSQL_STMT_EXECUTE_DONE)
{
set_stmt_error(stmt, CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);
DBUG_RETURN(1);
}
if (mysql->status == MYSQL_STATUS_READY &&
stmt->server_status & SERVER_STATUS_CURSOR_EXISTS)
{
/*
Server side cursor exist, tell server to start sending the rows
*/
NET *net= &mysql->net;
char buff[4 /* statement id */ +
4 /* number of rows to fetch */];
/* Send row request to the server */
int4store(buff, stmt->stmt_id);
int4store(buff + 4, (int)~0); /* number of rows to fetch */
if (cli_advanced_command(mysql, COM_STMT_FETCH, buff, sizeof(buff),
NullS, 0, 1))
{
set_stmt_errmsg(stmt, net->last_error, net->last_errno, net->sqlstate);
DBUG_RETURN(1);
}
}
else if (mysql->status != MYSQL_STATUS_GET_RESULT)
{
set_stmt_error(stmt, CR_COMMANDS_OUT_OF_SYNC, unknown_sqlstate);
DBUG_RETURN(1);
}
if (result->data)
{
free_root(&result->alloc, MYF(MY_KEEP_PREALLOC));
@ -4803,6 +4830,10 @@ int STDCALL mysql_stmt_store_result(MYSQL_STMT *stmt)
DBUG_RETURN(1);
}
/* Assert that if there was a cursor, all rows have been fetched */
DBUG_ASSERT(mysql->status != MYSQL_STATUS_READY ||
(mysql->server_status & SERVER_STATUS_LAST_ROW_SENT));
if (stmt->update_max_length)
{
MYSQL_ROWS *cur= result->data;