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async auto flush

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pull/93/head
Denis Ivaykin 10 years ago
parent 9cad840a72
commit f363fff109
3 changed files with 42 additions and 19 deletions
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9
include/spdlog/async_logger.h
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@ -58,19 +58,22 @@ public:
const It& end,
size_t queue_size,
const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
const std::function<void()>& worker_warmup_cb = nullptr);
const std::function<void()>& worker_warmup_cb = nullptr,
const std::chrono::milliseconds auto_flush_millis = std::chrono::milliseconds::zero());
async_logger(const std::string& logger_name,
sinks_init_list sinks,
size_t queue_size,
const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
const std::function<void()>& worker_warmup_cb = nullptr);
const std::function<void()>& worker_warmup_cb = nullptr,
const std::chrono::milliseconds auto_flush_millis = std::chrono::milliseconds::zero());
async_logger(const std::string& logger_name,
sink_ptr single_sink,
size_t queue_size,
const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
const std::function<void()>& worker_warmup_cb = nullptr);
const std::function<void()>& worker_warmup_cb = nullptr,
const std::chrono::milliseconds auto_flush_millis = std::chrono::milliseconds::zero());
protected:

35
include/spdlog/details/async_log_helper.h
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@ -119,7 +119,8 @@ public:
const std::vector<sink_ptr>& sinks,
size_t queue_size,
const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
const std::function<void()>& worker_warmup_cb = nullptr);
const std::function<void()>& worker_warmup_cb = nullptr,
const std::chrono::milliseconds auto_flush_millis = std::chrono::milliseconds::zero());
void log(const details::log_msg& msg);
@ -145,6 +146,9 @@ private:
// worker thread warmup callback - one can set thread priority, affinity, etc
const std::function<void()> _worker_warmup_cb;
// auto periodic sink flush parameter
const std::chrono::milliseconds _auto_flush_millis;
// worker thread
std::thread _worker_thread;
@ -159,7 +163,7 @@ private:
bool process_next_msg(clock::time_point& last_pop);
// sleep,yield or return immediatly using the time passed since last message as a hint
static void sleep_or_yield(const clock::time_point& last_op_time);
static std::chrono::nanoseconds sleep_or_yield(const clock::time_point& last_op_time);
};
}
@ -168,12 +172,13 @@ private:
///////////////////////////////////////////////////////////////////////////////
// async_sink class implementation
///////////////////////////////////////////////////////////////////////////////
inline spdlog::details::async_log_helper::async_log_helper(formatter_ptr formatter, const std::vector<sink_ptr>& sinks, size_t queue_size, const async_overflow_policy overflow_policy, const std::function<void()>& worker_warmup_cb):
inline spdlog::details::async_log_helper::async_log_helper(formatter_ptr formatter, const std::vector<sink_ptr>& sinks, size_t queue_size, const async_overflow_policy overflow_policy, const std::function<void()>& worker_warmup_cb, const std::chrono::milliseconds auto_flush_millis):
_formatter(formatter),
_sinks(sinks),
_q(queue_size),
_overflow_policy(overflow_policy),
_worker_warmup_cb(worker_warmup_cb),
_auto_flush_millis(auto_flush_millis),
_worker_thread(&async_log_helper::worker_loop, this)
{}
@ -249,7 +254,12 @@ inline bool spdlog::details::async_log_helper::process_next_msg(clock::time_poin
}
else //empty queue
{
sleep_or_yield(last_pop);
auto time_since_op = sleep_or_yield(last_pop);
if (_auto_flush_millis > std::chrono::milliseconds::zero() && time_since_op > _auto_flush_millis)
{
for (auto &s : _sinks)
s->flush();
}
}
return true;
}
@ -261,7 +271,7 @@ inline void spdlog::details::async_log_helper::set_formatter(formatter_ptr msg_f
// sleep,yield or return immediatly using the time passed since last message as a hint
inline void spdlog::details::async_log_helper::sleep_or_yield(const clock::time_point& last_op_time)
inline std::chrono::nanoseconds spdlog::details::async_log_helper::sleep_or_yield(const clock::time_point& last_op_time)
{
using std::chrono::milliseconds;
using namespace std::this_thread;
@ -270,18 +280,25 @@ inline void spdlog::details::async_log_helper::sleep_or_yield(const clock::time_
// spin upto 1 ms
if (time_since_op <= milliseconds(1))
return;
return time_since_op;
// yield upto 10ms
if (time_since_op <= milliseconds(10))
return yield();
{
yield();
return time_since_op;
}
// sleep for half of duration since last op
if (time_since_op <= milliseconds(100))
return sleep_for(time_since_op / 2);
{
sleep_for(time_since_op / 2);
return time_since_op;
}
return sleep_for(milliseconds(100));
sleep_for(milliseconds(100));
return time_since_op;
}
// throw if the worker thread threw an exception or not active

15
include/spdlog/details/async_logger_impl.h
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@ -39,9 +39,10 @@ inline spdlog::async_logger::async_logger(const std::string& logger_name,
const It& end,
size_t queue_size,
const async_overflow_policy overflow_policy,
const std::function<void()>& worker_warmup_cb) :
const std::function<void()>& worker_warmup_cb,
const std::chrono::milliseconds auto_flush_millis) :
logger(logger_name, begin, end),
_async_log_helper(new details::async_log_helper(_formatter, _sinks, queue_size, overflow_policy, worker_warmup_cb))
_async_log_helper(new details::async_log_helper(_formatter, _sinks, queue_size, overflow_policy, worker_warmup_cb, auto_flush_millis))
{
}
@ -49,15 +50,17 @@ inline spdlog::async_logger::async_logger(const std::string& logger_name,
sinks_init_list sinks,
size_t queue_size,
const async_overflow_policy overflow_policy,
const std::function<void()>& worker_warmup_cb) :
async_logger(logger_name, sinks.begin(), sinks.end(), queue_size, overflow_policy, worker_warmup_cb) {}
const std::function<void()>& worker_warmup_cb,
const std::chrono::milliseconds auto_flush_millis) :
async_logger(logger_name, sinks.begin(), sinks.end(), queue_size, overflow_policy, worker_warmup_cb, auto_flush_millis) {}
inline spdlog::async_logger::async_logger(const std::string& logger_name,
sink_ptr single_sink,
size_t queue_size,
const async_overflow_policy overflow_policy,
const std::function<void()>& worker_warmup_cb) :
async_logger(logger_name, { single_sink }, queue_size, overflow_policy, worker_warmup_cb) {}
const std::function<void()>& worker_warmup_cb,
const std::chrono::milliseconds auto_flush_millis) :
async_logger(logger_name, { single_sink }, queue_size, overflow_policy, worker_warmup_cb, auto_flush_millis) {}
inline void spdlog::async_logger::_set_formatter(spdlog::formatter_ptr msg_formatter)

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