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Merge pull request #93 from divaykin/auto-flush

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async auto flush
This commit is contained in:
Gabi Melman 2015-05-12 12:24:50 +03:00
commit e6fc8bf2e5
6 changed files with 56 additions and 28 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& flush_interval_ms = 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& flush_interval_ms = 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& flush_interval_ms = std::chrono::milliseconds::zero());
protected:

46
include/spdlog/details/async_log_helper.h
View File

@ -43,6 +43,7 @@
#include "./mpmc_bounded_q.h"
#include "./log_msg.h"
#include "./format.h"
#include "os.h"
namespace spdlog
@ -119,7 +120,8 @@ 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& flush_interval_ms = std::chrono::milliseconds::zero());
void log(const details::log_msg& msg);
@ -145,6 +147,9 @@ 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 _flush_interval_ms;
// worker thread
std::thread _worker_thread;
@ -156,10 +161,10 @@ private:
// pop next message from the queue and process it
// return true if a message was available (queue was not empty), will set the last_pop to the pop time
bool process_next_msg(clock::time_point& last_pop);
bool process_next_msg(log_clock::time_point& last_pop, log_clock::time_point& last_flush);
// 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 void sleep_or_yield(const spdlog::log_clock::time_point& now, const log_clock::time_point& last_op_time);
};
}
@ -168,12 +173,13 @@ 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& flush_interval_ms):
_formatter(formatter),
_sinks(sinks),
_q(queue_size),
_overflow_policy(overflow_policy),
_worker_warmup_cb(worker_warmup_cb),
_flush_interval_ms(flush_interval_ms),
_worker_thread(&async_log_helper::worker_loop, this)
{}
@ -199,10 +205,12 @@ inline void spdlog::details::async_log_helper::log(const details::log_msg& msg)
async_msg new_msg(msg);
if (!_q.enqueue(std::move(new_msg)) && _overflow_policy != async_overflow_policy::discard_log_msg)
{
auto last_op_time = clock::now();
auto last_op_time = details::os::now();
auto now = last_op_time;
do
{
sleep_or_yield(last_op_time);
now = details::os::now();
sleep_or_yield(now, last_op_time);
}
while (!_q.enqueue(std::move(new_msg)));
}
@ -214,8 +222,9 @@ inline void spdlog::details::async_log_helper::worker_loop()
try
{
if (_worker_warmup_cb) _worker_warmup_cb();
clock::time_point last_pop = clock::now();
while(process_next_msg(last_pop));
auto last_pop = details::os::now();
auto last_flush = last_pop;
while(process_next_msg(last_pop, last_flush));
}
catch (const std::exception& ex)
{
@ -229,7 +238,7 @@ inline void spdlog::details::async_log_helper::worker_loop()
// process next message in the queue
// return true if this thread should still be active (no msg with level::off was received)
inline bool spdlog::details::async_log_helper::process_next_msg(clock::time_point& last_pop)
inline bool spdlog::details::async_log_helper::process_next_msg(log_clock::time_point& last_pop, log_clock::time_point& last_flush)
{
async_msg incoming_async_msg;
@ -237,7 +246,7 @@ inline bool spdlog::details::async_log_helper::process_next_msg(clock::time_poin
if (_q.dequeue(incoming_async_msg))
{
last_pop = clock::now();
last_pop = details::os::now();
if(incoming_async_msg.level == level::off)
return false;
@ -249,7 +258,18 @@ inline bool spdlog::details::async_log_helper::process_next_msg(clock::time_poin
}
else //empty queue
{
sleep_or_yield(last_pop);
auto now = details::os::now();
if (_flush_interval_ms > std::chrono::milliseconds::zero())
{
auto time_since_flush = now - last_flush;
if (time_since_flush >= _flush_interval_ms)
{
last_flush = now;
for (auto &s : _sinks)
s->flush();
}
}
sleep_or_yield(now, last_pop);
}
return true;
}
@ -261,12 +281,12 @@ 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 void spdlog::details::async_log_helper::sleep_or_yield(const spdlog::log_clock::time_point& now, const spdlog::log_clock::time_point& last_op_time)
{
using std::chrono::milliseconds;
using namespace std::this_thread;
auto time_since_op = clock::now() - last_op_time;
auto time_since_op = now - last_op_time;
// spin upto 1 ms
if (time_since_op <= milliseconds(1))

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& flush_interval_ms) :
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, flush_interval_ms))
{
}
@ -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& flush_interval_ms) :
async_logger(logger_name, sinks.begin(), sinks.end(), queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms) {}
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& flush_interval_ms) :
async_logger(logger_name, { single_sink }, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms) {}
inline void spdlog::async_logger::_set_formatter(spdlog::formatter_ptr msg_formatter)

6
include/spdlog/details/registry.h
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@ -70,7 +70,7 @@ public:
if (_async_mode)
new_logger = std::make_shared<async_logger>(logger_name, sinks_begin, sinks_end, _async_q_size, _overflow_policy, _worker_warmup_cb);
new_logger = std::make_shared<async_logger>(logger_name, sinks_begin, sinks_end, _async_q_size, _overflow_policy, _worker_warmup_cb, _flush_interval_ms);
else
new_logger = std::make_shared<logger>(logger_name, sinks_begin, sinks_end);
@ -128,13 +128,14 @@ public:
_level = log_level;
}
void set_async_mode(size_t q_size, const async_overflow_policy overflow_policy, const std::function<void()>& worker_warmup_cb)
void set_async_mode(size_t q_size, const async_overflow_policy overflow_policy, const std::function<void()>& worker_warmup_cb, const std::chrono::milliseconds& flush_interval_ms)
{
std::lock_guard<Mutex> lock(_mutex);
_async_mode = true;
_async_q_size = q_size;
_overflow_policy = overflow_policy;
_worker_warmup_cb = worker_warmup_cb;
_flush_interval_ms = flush_interval_ms;
}
void set_sync_mode()
@ -168,6 +169,7 @@ private:
size_t _async_q_size = 0;
async_overflow_policy _overflow_policy = async_overflow_policy::block_retry;
std::function<void()> _worker_warmup_cb = nullptr;
std::chrono::milliseconds _flush_interval_ms;
};
#ifdef SPDLOG_NO_REGISTRY_MUTEX
typedef registry_t<spdlog::details::null_mutex> registry;

4
include/spdlog/details/spdlog_impl.h
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@ -137,9 +137,9 @@ inline void spdlog::set_level(level::level_enum log_level)
}
inline void spdlog::set_async_mode(size_t queue_size, const async_overflow_policy overflow_policy, const std::function<void()>& worker_warmup_cb)
inline void spdlog::set_async_mode(size_t queue_size, const async_overflow_policy overflow_policy, const std::function<void()>& worker_warmup_cb, const std::chrono::milliseconds& flush_interval_ms)
{
details::registry::instance().set_async_mode(queue_size, overflow_policy, worker_warmup_cb);
details::registry::instance().set_async_mode(queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms);
}
inline void spdlog::set_sync_mode()

2
include/spdlog/spdlog.h
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@ -68,7 +68,7 @@ void set_level(level::level_enum log_level);
// worker_warmup_cb (optional):
// callback function that will be called in worker thread upon start (can be used to init stuff like thread affinity)
//
void set_async_mode(size_t queue_size, const async_overflow_policy overflow_policy = async_overflow_policy::block_retry, const std::function<void()>& worker_warmup_cb = nullptr);
void set_async_mode(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::chrono::milliseconds& flush_interval_ms = std::chrono::milliseconds::zero());
// Turn off async mode
void set_sync_mode();