void loadavg_init()
{
color_t c = { 0, COLOR_MAX/2, COLOR_MAX/2 };
base_set(c, LED_LOAD_1);
load_update(&Load_update, 0);
load_blink(&Load_blink, 0);
}
/*
* The boot processos timer interrupt handler. In addition to non-boot cpus it
* keeps real time and notifies the clock task if need be
*/
int timer_int_handler(void)
{
/* Update user and system accounting times. Charge the current process
* for user time. If the current process is not billable, that is, if a
* non-user process is running, charge the billable process for system
* time as well. Thus the unbillable process' user time is the billable
* user's system time.
*/
struct proc * p, * billp;
/* FIXME watchdog for slave cpus! */
#ifdef USE_WATCHDOG
/*
* we need to know whether local timer ticks are happening or whether
* the kernel is locked up. We don't care about overflows as we only
* need to know that it's still ticking or not
*/
watchdog_local_timer_ticks++;
#endif
if (cpu_is_bsp(cpuid))
realtime++;
/* Update user and system accounting times. Charge the current process
* for user time. If the current process is not billable, that is, if a
* non-user process is running, charge the billable process for system
* time as well. Thus the unbillable process' user time is the billable
* user's system time.
*/
p = get_cpulocal_var(proc_ptr);
billp = get_cpulocal_var(bill_ptr);
p->p_user_time++;
if (! (priv(p)->s_flags & BILLABLE)) {
billp->p_sys_time++;
}
/* Decrement virtual timers, if applicable. We decrement both the
* virtual and the profile timer of the current process, and if the
* current process is not billable, the timer of the billed process as
* well. If any of the timers expire, do_clocktick() will send out
* signals.
*/
if ((p->p_misc_flags & MF_VIRT_TIMER)){
p->p_virt_left--;
}
if ((p->p_misc_flags & MF_PROF_TIMER)){
p->p_prof_left--;
}
if (! (priv(p)->s_flags & BILLABLE) &&
(billp->p_misc_flags & MF_PROF_TIMER)){
billp->p_prof_left--;
}
/*
* Check if a process-virtual timer expired. Check current process, but
* also bill_ptr - one process's user time is another's system time, and
* the profile timer decreases for both!
*/
vtimer_check(p);
if (p != billp)
vtimer_check(billp);
/* Update load average. */
load_update();
if (cpu_is_bsp(cpuid)) {
/* if a timer expired, notify the clock task */
if ((next_timeout <= realtime)) {
tmrs_exptimers(&clock_timers, realtime, NULL);
next_timeout = (clock_timers == NULL) ?
TMR_NEVER : clock_timers->tmr_exp_time;
}
#ifdef DEBUG_SERIAL
if (do_serial_debug)
do_ser_debug();
#endif
}
return(1); /* reenable interrupts */
}
bool CConfigLoader::load(const std::string& filepath)
{
Json::Reader reader;
Json::Value root;
std::ifstream fs(filepath.c_str());
struct DbInfo* db_info_array[MAX_DB_CONNECTION] = { NULL };
struct QueryInfo* query_info_array[MAX_SQL_TEMPLATE] = { NULL };
struct UpdateInfo* update_info_array[MAX_SQL_TEMPLATE] = { NULL };
if (_md5_sum.empty())
{
MYLOG_INFO("loading %s\n", filepath.c_str());
}
else
{
MYLOG_DETAIL("loading %s\n", filepath.c_str());
}
if (!fs)
{
MYLOG_ERROR("load %s failed: %s\n", filepath.c_str(), strerror(errno));
return false;
}
if (!reader.parse(fs, root))
{
MYLOG_ERROR("parse %s failed: %s\n", filepath.c_str(), reader.getFormattedErrorMessages().c_str());
return false;
}
// 检查文件是否有修改过
std::string md5_sum = utils::CMd5Helper::lowercase_md5("%s", root.toStyledString().c_str());
if (md5_sum == _md5_sum)
{
MYLOG_DETAIL("not changed: (%s)%s\n", md5_sum.c_str(), filepath.c_str());
return true; // 未发生变化
}
init_db_info_array(db_info_array);
init_query_info_array(query_info_array);
init_update_info_array(update_info_array);
if (!load_database(root["database"], db_info_array))
return false;
if (!load_query(root["query"], query_info_array))
return false;
if (!load_update(root["update"], update_info_array))
return false;
int i; // 加写锁
sys::WriteLockHelper write_lock(_read_write_lock);
release_db_info_array(_db_info_array);
release_query_info_array(_query_info_array);
release_update_info_array(_update_info_array);
for (i=0; i<MAX_DB_CONNECTION; ++i)
{
if (db_info_array[i] != NULL)
{
// 启动时即连接一下，以早期发现配置等问题
_db_info_array[i] = new struct DbInfo(*db_info_array[i]);
sys::DBConnection* db_connection = init_db_connection(i, false);
if (db_connection != NULL)
{
delete db_connection;
db_connection = NULL;
}
}
}
for (i=0; i<MAX_SQL_TEMPLATE; ++i)
{
if (query_info_array[i] != NULL)
_query_info_array[i] = new struct QueryInfo(*query_info_array[i]);
if (update_info_array[i] != NULL)
_update_info_array[i] = new struct UpdateInfo(*update_info_array[i]);
}
_md5_sum = md5_sum;
MYLOG_INFO("loaded %s[%s] successfully\n", filepath.c_str(), _md5_sum.c_str());
return true;
}
