spdlog/bench/zf_log-bench-mt.cpp

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#include <thread>
#include <vector>
#include <atomic>
#include <cstdlib>
#include <unistd.h>
#include <fcntl.h>
#include <zf_log.c>
const char g_path[] = "logs/zf_log.txt";
int g_fd;
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static void output_callback(zf_log_message *msg)
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{
*msg->p = '\n';
write(g_fd, msg->buf, msg->p - msg->buf + 1);
}
using namespace std;
int main(int argc, char* argv[])
{
g_fd = open(g_path, O_APPEND|O_CREAT|O_WRONLY);
if (0 > g_fd)
{
ZF_LOGE_AUX(ZF_LOG_STDERR, "Failed to open log file: %s", g_path);
return -1;
}
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zf_log_set_output_callback(ZF_LOG_PUT_STD, output_callback);
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int thread_count = 10;
if(argc > 1)
thread_count = std::atoi(argv[1]);
int howmany = 1000000;
std::atomic<int > msg_counter {0};
vector<thread> threads;
for (int t = 0; t < thread_count; ++t)
{
threads.push_back(std::thread([&]()
{
while (true)
{
int counter = ++msg_counter;
if (counter > howmany) break;
ZF_LOGI("zf_log message #%i: This is some text for your pleasure", counter);
}
}));
}
for (auto &t:threads)
{
t.join();
};
close(g_fd);
return 0;
}