database/mariadb-connector-c
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Fixed crash/undefined behaviour when running large amount of threads:

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replaced select() with poll()
Added conneciton timeout support for windows platforms
This commit is contained in:
holzboote@googlemail.com
2013-08-01 09:56:36 +02:00
parent 077afd8e10
commit b5db6c127f
4 changed files with 104 additions and 79 deletions
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9
unittest/libmariadb/thread.c
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@@ -45,8 +45,9 @@ int thread_conc27(void);
DWORD WINAPI thread_conc27(void);
#endif
#define THREAD_NUM 150
#define THREAD_NUM 1800
/* run this test as root and increase the number of handles (ulimit -n) */
static int test_conc_27(MYSQL *mysql)
{
@@ -70,6 +71,9 @@ static int test_conc_27(MYSQL *mysql)
rc= mysql_query(mysql, "INSERT INTO t_conc27 VALUES(0)");
check_mysql_rc(rc, mysql);
rc= mysql_query(mysql, "SET GLOBAL max_connections=100000");
check_mysql_rc(rc, mysql);
pthread_mutex_init(&LOCK_test, NULL);
for (i=0; i < THREAD_NUM; i++)
{
@@ -121,7 +125,7 @@ DWORD WINAPI thread_conc27(void)
if(!mysql_real_connect(mysql, hostname, username, password, schema,
port, socketname, 0))
{
diag("Error: %s", mysql_error(mysql));
diag(">Error: %s", mysql_error(mysql));
mysql_close(mysql);
mysql_thread_end();
goto end;
@@ -130,7 +134,6 @@ DWORD WINAPI thread_conc27(void)
rc= mysql_query(mysql, "UPDATE t_conc27 SET a=a+1");
check_mysql_rc(rc, mysql);
pthread_mutex_unlock(&LOCK_test);
rc= mysql_query(mysql, "SELECT SLEEP(5)");
check_mysql_rc(rc, mysql);
if (res= mysql_store_result(mysql))
mysql_free_result(res);