//生成堆栈地址, 不输出地址对应文件行, 如需要使用 ./control core 命令可对 core.log 进行解释生成代码行记录
bool CSignalMgr::GenCoreLog(int signo)
{
if ( core_log_name.empty() )
return false;
int64 tid = (int64)syscall(SYS_gettid);
//char* sed_string = "sed '1,8d' | sed '$d' | sed '$d' | sed '$d' | sed '$d' | sed '$d'";
const char* sed_string = "sed '1,8d'";
local_execute( "date > %s.date", core_log_name.c_str() );
local_execute( "pstack %lu | %s > %s.stack",
tid,
sed_string,
core_log_name.c_str() );
local_execute( "cat %s %s.date %s.stack > %s.out",
core_log_name.c_str(),
core_log_name.c_str(),
core_log_name.c_str(),
core_log_name.c_str() );
local_execute( "rm -f %s %s.date %s.stack",
core_log_name.c_str(),
core_log_name.c_str(),
core_log_name.c_str() );
local_execute( "mv %s.out %s", core_log_name.c_str(), core_log_name.c_str() );
return true;
}
void SchedulerNode::local_deplete_queue() {
TaskId task_id;
while (generic_tasks_.unique_pull(task_id)) {
DLOG << id() << ": Executing own task.";
local_execute(task_id);
}
}
bool SchedulerNode::local_steal_and_execute(NodeId from) {
TaskId task_id;
if (scheduler_->node(from).generic_tasks_.shared_pull(task_id)) {
DLOG << id() << ": Stole task from " << from;
local_execute(task_id);
return true;
}
return false;
}
void SchedulerNode::run_tasks_loop() {
CHECK(scheduler_);
CHECK(this_id_ != INVALID_NODE);
auto num_nodes = scheduler_->num_nodes();
uint32_t num_empty_runs = 0;
auto steal_id = steal_from_.load();
DLOG << id() << ": Node running. Depleting initial queue...";
local_deplete_queue();
available_.store(true);
while (!stop_flag_.load()) {
do {
steal_id = (steal_id + 1) % num_nodes;
} while (steal_id == this_id_);
if (local_steal_and_execute(steal_id)) {
if (!available_.exchange(false, std::memory_order_acq_rel)) {
auto new_steal_id = steal_from_.load(std::memory_order_acquire);
if (steal_id != new_steal_id && local_steal_and_execute(new_steal_id)) {
steal_id = new_steal_id;
DLOG << id() << ": Dealing with interleaved wakeup from "
<< steal_id;
}
}
num_empty_runs = 0;
} else if ((num_empty_runs += 1) == num_nodes) {
DLOG << id() << ": Enough empty runs, sleeping...";
wakeup_.wait();
steal_id = steal_from_.load(std::memory_order_acquire);
DLOG << id() << ": Woken up by " << steal_id << ". Doing task..";
local_steal_and_execute(steal_id);
DLOG << id() << ": Going back to stealing.";
num_empty_runs = 0;
} else {
continue;
}
TaskId pulled_id;
while (generic_tasks_.unique_pull(pulled_id)) local_execute(pulled_id);
available_.store(true, std::memory_order_release);
}
}
