void main_loop()
{
int child_count = 0;
int stat_pipe[2];
int ret;
int status;
pid_t child;
unsigned long usec_start, usec;
unsigned long child_count_sig;
usec_start = current_time_usec();
do {
SAFE(pipe(stat_pipe));
child_count++;
count_ope += NSCENAR;
fflush(stdout);
child = fork();
if (child == 0) {
close(stat_pipe[0]);
do_child();
SAFE(write(stat_pipe[1], &count_sig,
sizeof(count_sig)));
close(stat_pipe[1]);
pthread_exit(0);
UNRESOLVED(0, "Should not be reached");
exit(0);
}
close(stat_pipe[1]);
SAFE(read(stat_pipe[0], &child_count_sig, sizeof(count_sig)));
close(stat_pipe[0]);
count_sig += child_count_sig;
ret = waitpid(child, &status, 0);
if (ret != child)
UNRESOLVED(errno, "Waitpid returned the wrong PID");
if (!WIFEXITED(status)) {
output("status: %d\n", status);
FAILED("Child exited abnormally");
}
if (WEXITSTATUS(status) != 0) {
output("exit status: %d\n", WEXITSTATUS(status));
FAILED("An error occured in child");
}
usec = current_time_usec();
} while ((usec - usec_start) < RUN_TIME_USEC);
output("Test spawned %d child processes.\n", child_count);
output("Test finished after %lu usec.\n", usec - usec_start);
}
/**
* brief:
*
* @returns
*/
void RespProcessor::doIt()
{
char buffer[16*1024] = {'\0'};
ResponseManager* pRespMgr = ResponseManager::getInstance();
assert(NULL != pRespMgr);
while(true)
{
CmdTask resp;
bool ret = pRespMgr->getRespTask(resp);
if(!ret)
{
LOG4CPLUS_WARN(CLogger::logger, "response array is empty.");
continue;
}
SessionBase* pSession = _sess_mgr_prt->getSession(resp.seqno);
if(NULL == pSession)
{
LOG4CPLUS_ERROR(CLogger::logger, "can't find the session by " << resp.seqno);
delete resp.pCmd;
resp.pCmd = NULL;
continue;
}
int64_t uid = resp.pCmd->get_userid();
string name = resp.pCmd->get_cmd_name();
memset(buffer, '\0', 16 * 1024);
int length = resp.pCmd->header_length() + resp.pCmd->body_length();
ret = resp.pCmd->encode((byte*)buffer, length);
resp.releaseCmd();
if(!ret)
{
LOG4CPLUS_ERROR(CLogger::logger, "command encode failed for " << name);
continue;
}
pSession->write2Send(string(buffer, length));
int iret = pSession->sendBuffer();
uint64_t data = U64(resp.seqno, pSession->getFd());
if(SOCKET_EAGAIN == iret) //socket»º³åÇøдÂú
{
_epoll_svr_ptr->notify(pSession->getFd(), data, EVENT_WRITE);
}
else if(SOCKET_ERR == iret) //socket ³ö´í
{
_epoll_svr_ptr->notify(pSession->getFd(), data, EVENT_ERROR);
_sess_mgr_prt->freeSession(pSession);
_client_mgr_prt->freeClient(uid, resp.seqno);
}
LOG4CPLUS_INFO(CDebugLogger::logger, "TimeTace: request[" << resp.idx << "] to response["
<< name << "] spend time " << current_time_usec() - resp.timestamp);
Index::free(resp.idx);
}
}
/**
* brief:
*/
void CmdWorker::doIt()
{
LOG4CPLUS_DEBUG(FLogger, "command worker start work!");
while(!_terminate)
{
CmdTask task;
bool bret = _task_queue.pop(task, 60*1000);
if(!bret)
{
LOG4CPLUS_DEBUG(FLogger, "task queue is empty! continue wait...");
continue;
}
LOG4CPLUS_INFO(FLogger, "TimeTrace:[" << task.pCmd->get_cmd_name()
<< "] out queue spend time " << current_time_usec()- task.timestamp);
string name = task.pCmd->get_cmd_name();
ICmdHandlerPtr pHandler = CmdRegistor::getCommand(name);
if(!pHandler)
{
LOG4CPLUS_WARN(FLogger, "couldn't find handler for command["
<< name << "]");
continue;
}
LOG4CPLUS_DEBUG(FLogger, "find a command handler to process command["
<< name << "]");
pHandler->handle(task);
LOG4CPLUS_INFO(FLogger, _id << "TimeTrace:[" << task.pCmd->get_cmd_name()
<< "] handle spend time " << current_time_usec() - task.timestamp);
}
}
bool test () const
{
return current_time_usec() >= stop_usec_;
}
CheckpointingSchedule (const protobuf::Config::Schedule & config) :
stop_usec_(
current_time_usec() +
static_cast<usec_t>(config.checkpoint_period_sec() * 1e6))
{
}