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Fix for CONC-218:

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To prevent unexpected behavior when reusing a statement with mariadb_stmt_execute_direct
a call to mysql_stmt_attr_set with option STMT_ATTR_PREBIND_PARAMS will reset the statement before.
This commit is contained in:
Georg Richter
2016-11-29 13:30:17 +01:00
parent dad2cf6cf4
commit 64536703c7
3 changed files with 94 additions and 10 deletions
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32
unittest/libmariadb/features-10_2.c
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@@ -155,8 +155,40 @@ static int conc_212(MYSQL *mysql)
return OK;
}
static int conc_218(MYSQL *mysql)
{
MYSQL_STMT *stmt= mysql_stmt_init(mysql);
MYSQL_BIND bind[2];
int id=1;
my_bool is_null= 0, error= 0;
unsigned int param_count= 1;
memset(bind, 0, 2 * sizeof(MYSQL_BIND));
bind[0].buffer_type = MYSQL_TYPE_LONG;
bind[0].buffer = (void *)&id;
bind[0].buffer_length = 4;
bind[0].is_null = &is_null;
bind[0].error = &error;
mysql_stmt_attr_set(stmt, STMT_ATTR_PREBIND_PARAMS, &param_count);
check_stmt_rc(mysql_stmt_bind_param(stmt, bind), stmt);
check_stmt_rc(mariadb_stmt_execute_direct(stmt, "SELECT ?", -1), stmt);
check_stmt_rc(mysql_stmt_store_result(stmt), stmt);
check_stmt_rc(mysql_stmt_free_result(stmt), stmt);
param_count= 1;
mysql_stmt_attr_set(stmt, STMT_ATTR_PREBIND_PARAMS, &param_count);
check_stmt_rc(mysql_stmt_bind_param(stmt, bind), stmt);
check_stmt_rc(mariadb_stmt_execute_direct(stmt, "SELECT ?", -1), stmt);
mysql_stmt_close(stmt);
return OK;
}
struct my_tests_st my_tests[] = {
{"conc_218", conc_218, TEST_CONNECTION_DEFAULT, 0, NULL, NULL},
{"conc_212", conc_212, TEST_CONNECTION_DEFAULT, 0, NULL, NULL},
{"conc_213", conc_213, TEST_CONNECTION_DEFAULT, 0, NULL, NULL},
{"execute_direct", execute_direct, TEST_CONNECTION_DEFAULT, 0, NULL, NULL},