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spdlog
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registery and periodic flusher fixes.

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pull/773/head
gabime 7 years ago
parent 516a8e4212
commit cb9c984aa7
7 changed files with 100 additions and 107 deletions
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6
example/example.vcxproj
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@ -31,7 +31,7 @@
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v120</PlatformToolset>
<PlatformToolset>v141</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
@ -43,7 +43,7 @@
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v120</PlatformToolset>
<PlatformToolset>v141</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
@ -86,7 +86,7 @@
<ClCompile>
<PrecompiledHeader>
</PrecompiledHeader>
<WarningLevel>Level4</WarningLevel>
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

24
include/spdlog/async.h
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@ -38,17 +38,11 @@ struct async_factory_impl
template<typename Sink, typename... SinkArgs>
static std::shared_ptr<async_logger> create(const std::string &logger_name, SinkArgs &&... args)
{
using details::registry;
std::lock_guard<std::recursive_mutex> lock(registry::instance().tp_mutex());
auto tp = registry::instance().get_thread_pool();
if (tp == nullptr)
{
tp = std::make_shared<details::thread_pool>(details::default_async_q_size, 1);
registry::instance().set_thread_pool(tp);
}
using details::registry;
auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
// create default tp if not already exists.
auto tp = registry::instance().create_tp_once(details::default_async_q_size, 1);
auto new_logger = std::make_shared<async_logger>(logger_name, std::move(sink), std::move(tp), OverflowPolicy);
registry::instance().register_and_init(new_logger);
return new_logger;
@ -72,16 +66,14 @@ inline std::shared_ptr<spdlog::logger> create_async_nb(const std::string &logger
// set global thread pool.
inline void init_thread_pool(size_t q_size, size_t thread_count)
{
using details::registry;
using details::thread_pool;
auto tp = std::make_shared<thread_pool>(q_size, thread_count);
registry::instance().set_thread_pool(std::move(tp));
{
auto tp = std::make_shared<details::thread_pool>(q_size, thread_count);
details::registry::instance().set_tp(std::move(tp));
}
// get the global thread pool.
inline std::shared_ptr<spdlog::details::thread_pool> thread_pool()
{
return details::registry::instance().get_thread_pool();
return details::registry::instance().get_tp();
}
} // namespace spdlog

39
include/spdlog/details/periodic_worker.h
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@ -17,7 +17,6 @@
#include <functional>
#include <mutex>
#include <thread>
namespace spdlog {
namespace details {
@ -26,22 +25,19 @@ class periodic_worker
public:
periodic_worker(std::function<void()> callback_fun, std::chrono::seconds interval)
{
if (interval == std::chrono::seconds::zero())
active_ = (interval > std::chrono::seconds::zero());
if (!active_)
{
active_ = false;
return;
}
active_ = true;
flusher_thread_ = std::thread([callback_fun, interval, this]() {
worker_thread_ = std::thread([this, callback_fun, interval]() {
for (;;)
{
std::unique_lock<std::mutex> lock(this->mutex_);
bool should_terminate = this->cv_.wait_for(lock, interval, [this] {
return !this->active_;
});
if (should_terminate)
if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; }))
{
break;
return; // active_ == false, so exit this thread
}
callback_fun();
}
@ -51,24 +47,23 @@ public:
periodic_worker(const periodic_worker &) = delete;
periodic_worker &operator=(const periodic_worker &) = delete;
// stop the back thread and join it
// stop the worker thread and join it
~periodic_worker()
{
if (!active_)
{
return;
}
{
std::lock_guard<std::mutex> lock(mutex_);
active_ = false;
}
cv_.notify_one();
flusher_thread_.join();
if (worker_thread_.joinable())
{
{
std::lock_guard<std::mutex> lock(mutex_);
active_ = false;
}
cv_.notify_one();
worker_thread_.join();
}
}
private:
bool active_;
std::thread flusher_thread_;
std::thread worker_thread_;
std::mutex mutex_;
std::condition_variable cv_;
};

119
include/spdlog/details/registry.h
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@ -24,18 +24,15 @@ namespace spdlog {
namespace details {
class thread_pool;
template<typename Mutex>
class registry_t
class registry
{
public:
using MutexT = Mutex;
registry_t<Mutex>(const registry_t<Mutex> &) = delete;
registry_t<Mutex> &operator=(const registry_t<Mutex> &) = delete;
registry(const registry &) = delete;
registry &operator=(const registry &) = delete;
void register_logger(std::shared_ptr<logger> new_logger)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::lock_guard<std::mutex> lock(logger_map_mutex_);
auto logger_name = new_logger->name();
throw_if_exists_(logger_name);
loggers_[logger_name] = new_logger;
@ -43,7 +40,7 @@ public:
void register_and_init(std::shared_ptr<logger> new_logger)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::lock_guard<std::mutex> lock(logger_map_mutex_);
auto logger_name = new_logger->name();
throw_if_exists_(logger_name);
@ -58,33 +55,44 @@ public:
new_logger->set_level(level_);
new_logger->flush_on(flush_level_);
// Add to registry
// add to registry
loggers_[logger_name] = new_logger;
}
std::shared_ptr<logger> get(const std::string &logger_name)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::lock_guard<std::mutex> lock(logger_map_mutex_);
auto found = loggers_.find(logger_name);
return found == loggers_.end() ? nullptr : found->second;
}
void set_thread_pool(std::shared_ptr<thread_pool> tp)
void set_tp(std::shared_ptr<thread_pool> tp)
{
std::lock_guard<decltype(tp_mutex_)> lock(tp_mutex_);
std::lock_guard<std::mutex> lock(tp_mutex_);
tp_ = std::move(tp);
}
std::shared_ptr<thread_pool> get_thread_pool()
// create tp only if not exists already
std::shared_ptr<thread_pool> create_tp_once(size_t queue_size, size_t n_threads)
{
std::lock_guard<std::mutex> lock(tp_mutex_);
if (tp_ == nullptr)
{
tp_ = std::make_shared<details::thread_pool>(queue_size, n_threads);
}
return tp_;
}
std::shared_ptr<thread_pool> get_tp()
{
std::lock_guard<decltype(tp_mutex_)> lock(tp_mutex_);
std::lock_guard<std::mutex> lock(tp_mutex_);
return tp_;
}
// Set global formatter. Each sink in each logger will get a clone of this object
void set_formatter(std::unique_ptr<formatter> formatter)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::lock_guard<std::mutex> lock(logger_map_mutex_);
formatter_ = std::move(formatter);
for (auto &l : loggers_)
{
@ -94,7 +102,7 @@ public:
void set_level(level::level_enum log_level)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
l.second->set_level(log_level);
@ -104,7 +112,7 @@ public:
void flush_on(level::level_enum log_level)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
l.second->flush_on(log_level);
@ -114,13 +122,14 @@ public:
void flush_every(std::chrono::seconds interval)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::function<void()> clbk(std::bind(&registry_t::flush_all, this));
std::lock_guard<std::mutex> lock(flusher_mutex_);
std::function<void()> clbk(std::bind(&registry::flush_all, this));
periodic_flusher_.reset(new periodic_worker(clbk, interval));
}
void set_error_handler(log_err_handler handler)
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
l.second->set_error_handler(handler);
@ -130,52 +139,66 @@ public:
void apply_all(std::function<void(std::shared_ptr<logger>)> fun)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
fun(l.second);
}
}
void flush_all()
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_)
{
l.second->flush();
}
}
void drop(const std::string &logger_name)
{
std::lock_guard<Mutex> lock(loggers_mutex_);
std::lock_guard<std::mutex> lock(logger_map_mutex_);
loggers_.erase(logger_name);
}
void drop_all()
{
std::lock_guard<std::mutex> lock(logger_map_mutex_);
loggers_.clear();
}
// clean all reasources and threads started by the registry
void shutdown()
{
{
std::lock_guard<Mutex> lock(loggers_mutex_);
loggers_.clear();
std::lock_guard<std::mutex> lock(flusher_mutex_);
periodic_flusher_.reset();
}
drop_all();
{
std::lock_guard<decltype(tp_mutex_)> lock(tp_mutex_);
std::lock_guard<std::mutex> lock(tp_mutex_);
tp_.reset();
}
}
std::recursive_mutex &tp_mutex()
static registry &instance()
{
return tp_mutex_;
}
static registry_t<Mutex> &instance()
{
static registry_t<Mutex> s_instance;
static registry s_instance;
return s_instance;
}
private:
registry_t<Mutex>()
registry()
: formatter_(new pattern_formatter("%+"))
{
}
~registry_t<Mutex>()
~registry()
{
periodic_flusher_.reset();
/*std::lock_guard<std::mutex> lock(flusher_mutex_);
periodic_flusher_.reset();*/
}
void throw_if_exists_(const std::string &logger_name)
@ -185,20 +208,10 @@ private:
throw spdlog_ex("logger with name '" + logger_name + "' already exists");
}
}
void flush_all()
{
std::lock_guard<Mutex> lock(loggers_mutex_);
for (auto &l : loggers_)
{
l.second->flush();
}
}
Mutex loggers_mutex_;
std::recursive_mutex tp_mutex_;
std::unordered_map<std::string, std::shared_ptr<logger>> loggers_;
// std::unique_ptr<formatter> formatter_{ new pattern_formatter("%+") };
std::mutex logger_map_mutex_, flusher_mutex_;
std::mutex tp_mutex_;
std::unordered_map<std::string, std::shared_ptr<logger>> loggers_;
std::unique_ptr<formatter> formatter_;
level::level_enum level_ = level::info;
level::level_enum flush_level_ = level::off;
@ -207,13 +220,5 @@ private:
std::unique_ptr<periodic_worker> periodic_flusher_;
};
#ifdef SPDLOG_NO_REGISTRY_MUTEX
#include "spdlog/details/null_mutex.h"
using registry = registry_t<spdlog::details::null_mutex>;
#else
#include <mutex>
using registry = registry_t<std::mutex>;
#endif
} // namespace details
} // namespace spdlog

6
include/spdlog/spdlog.h
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@ -117,6 +117,12 @@ inline void drop_all()
details::registry::instance().drop_all();
}
// stop any running threads started by spdlog and clean registry loggers
void shutdown()
{
details::registry::instance().shutdown();
}
///////////////////////////////////////////////////////////////////////////////
//
// Trace & Debug can be switched on/off at compile time for zero cost debug

9
include/spdlog/tweakme.h
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@ -68,15 +68,6 @@
// #define SPDLOG_TRACE_ON
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
// Uncomment to avoid locking in the registry operations (spdlog::get(),
// spdlog::drop() spdlog::register()).
// Use only if your code never modifies concurrently the registry.
// Note that upon creating a logger the registry is modified by spdlog..
//
// #define SPDLOG_NO_REGISTRY_MUTEX
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
// Uncomment to avoid spdlog's usage of atomic log levels
// Use only if your code never modifies a logger's log levels concurrently by

4
tests/tests.vcxproj.user
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@ -0,0 +1,4 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup />
</Project>
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