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more graceful shutdown of worker thread in async

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This commit is contained in:
gabime 2014-12-21 02:08:16 +02:00
parent b1867cfba3
commit fd7650a84e
1 changed files with 19 additions and 18 deletions
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35
include/spdlog/details/async_log_helper.h
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@ -141,10 +141,6 @@ private:
// guess how much to sleep if queue is empty/full using last succesful op time as hint
static void sleep_or_yield(const clock::time_point& last_op_time);
// clear all remaining messages(if any), stop the _worker_thread and join it
void join_worker();
};
}
}
@ -160,9 +156,17 @@ inline spdlog::details::async_log_helper::async_log_helper(formatter_ptr formatt
_worker_thread(&async_log_helper::worker_loop, this)
{}
// Send to the worker thread termination message(level=off)
// and wait for it to finish gracefully
inline spdlog::details::async_log_helper::~async_log_helper()
{
join_worker();
log(log_msg(level::off));
try
{
_worker_thread.join();
}
catch (const std::system_error&) //Dont crash if thread not joinable
{}
}
@ -193,7 +197,9 @@ inline void spdlog::details::async_log_helper::worker_loop()
}
}
//Process next message in the queue
//Return true if message was processed in the queue, or false if queue was empty
//Will set _active to be false upon receiving log_msg with level==off (idicating the worker need to die)
inline bool spdlog::details::async_log_helper::process_next_msg(clock::time_point& last_pop)
{
@ -206,6 +212,11 @@ inline bool spdlog::details::async_log_helper::process_next_msg(clock::time_poin
try
{
incoming_async_msg.fill_log_msg(incoming_log_msg);
if(incoming_log_msg.level == level::off)
{
_active = false;
return false;
}
_formatter->format(incoming_log_msg);
for (auto &s : _sinks)
s->log(incoming_log_msg);
@ -271,17 +282,7 @@ inline void spdlog::details::async_log_helper::throw_if_bad_worker()
}
inline void spdlog::details::async_log_helper::join_worker()
{
_active = false;
try
{
_worker_thread.join();
}
catch (const std::system_error&) //Dont crash if thread not joinable
{}
}