void test_microsecond()
{
ulonglong t1= my_timer_microseconds();
ulonglong t2;
int i;
int backward= 0;
int nonzero= 0;
for (i=0 ; i < LOOP_COUNT ; i++)
{
t2= my_timer_microseconds();
if (t1 > t2)
backward++;
if (t2 != 0)
nonzero++;
t1= t2;
}
ok((backward == 0), "The microsecond timer is increasing");
if (myt.microseconds.routine != 0)
ok((nonzero != 0), "The microsecond timer is implemented");
else
ok((nonzero == 0), "The microsecond timer is not implemented and returns 0");
}
int change_master(chassis *srv) {
FILE *fp;
gchar buf[32];
int child_ret, ret = -1;
guint64 now, time_interval;
chassis_plugin *p = srv->modules->pdata[1];/*proxy plugin*/
chassis_plugin_config *config = p->config;
if(access(config->change_master_script, F_OK | X_OK)) {
g_message("%s: the change master script is not exist or have no permission to execute", G_STRLOC);
return ret;
}
if(g_atomic_int_compare_and_exchange(&(config->is_changing_master), 0, 1) == FALSE) {
g_message("%s:other thread is changing master, do not change.", G_STRLOC);
return 1;
}
time_interval = 1 * 60 * 1000 * 1000;/*one minute*/
now = my_timer_microseconds();
if(now < config->last_change_time + time_interval) {
g_message("%s:change master so frequently, do not change.", G_STRLOC);
return -2;
}
GString *command = g_string_new("sh ");
g_string_append(command, config->change_master_script);
fp = popen(command->str, "r");
if(fp == NULL) {
g_message("%s:popen error, errno = %d", G_STRLOC, errno);
g_string_free(command, TRUE);
return ret;
}
fgets(buf, sizeof(buf), fp);
child_ret = atoi(buf);
if(child_ret == 0) {
g_message("%s:change master successfully", G_STRLOC);
config->last_change_time = my_timer_microseconds();
ret = 0;
}else {
g_message("%s:change master unsuccessfully", G_STRLOC);
}
g_atomic_int_set(&(config->is_changing_master), 0);
pclose(fp);
return ret;
}
void chassis_timestamp_init_now(chassis_timestamp_t *ts,
const char *name,
const char *filename,
gint line) {
ts->name = name;
ts->filename = filename;
ts->line = line;
ts->usec = my_timer_microseconds();
ts->cycles = my_timer_cycles();
ts->ticks = my_timer_ticks();
}
guint64 chassis_get_rel_microseconds() {
return my_timer_microseconds();
}
