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Unnecessary backtrace begin/end logs (#2568)

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* add empty getter function to tracer

* add unit test to check empty tracer

Co-authored-by: Gyorgy Katona <gykatona@logmein.com>
This commit is contained in:
György Katona 2022-12-09 09:25:17 +01:00 committed by GitHub
parent f0cd9d1530
commit 8512000f36
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 21 additions and 1 deletions
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6
include/spdlog/details/backtracer-inl.h
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@ -54,6 +54,12 @@ SPDLOG_INLINE void backtracer::push_back(const log_msg &msg)
messages_.push_back(log_msg_buffer{msg});
}
SPDLOG_INLINE bool backtracer::empty() const
{
std::lock_guard<std::mutex> lock{mutex_};
return messages_.empty();
}
// pop all items in the q and apply the given fun on each of them.
SPDLOG_INLINE void backtracer::foreach_pop(std::function<void(const details::log_msg &)> fun)
{

1
include/spdlog/details/backtracer.h
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@ -32,6 +32,7 @@ public:
void disable();
bool enabled() const;
void push_back(const log_msg &msg);
bool empty() const;
// pop all items in the q and apply the given fun on each of them.
void foreach_pop(std::function<void(const details::log_msg &)> fun);

2
include/spdlog/logger-inl.h
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@ -210,7 +210,7 @@ SPDLOG_INLINE void logger::flush_()
SPDLOG_INLINE void logger::dump_backtrace_()
{
using details::log_msg;
if (tracer_.enabled())
if (tracer_.enabled() && !tracer_.empty())
{
sink_it_(log_msg{name(), level::info, "****************** Backtrace Start ******************"});
tracer_.foreach_pop([this](const log_msg &msg) { this->sink_it_(msg); });

13
tests/test_backtrace.cpp
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@ -31,6 +31,19 @@ TEST_CASE("bactrace1", "[bactrace]")
REQUIRE(test_sink->lines()[7] == "****************** Backtrace End ********************");
}
TEST_CASE("bactrace-empty", "[bactrace]")
{
using spdlog::sinks::test_sink_st;
auto test_sink = std::make_shared<test_sink_st>();
size_t backtrace_size = 5;
spdlog::logger logger("test-backtrace", test_sink);
logger.set_pattern("%v");
logger.enable_backtrace(backtrace_size);
logger.dump_backtrace();
REQUIRE(test_sink->lines().size() == 0);
}
TEST_CASE("bactrace-async", "[bactrace]")
{
using spdlog::sinks::test_sink_mt;