remoed zf_log from bench

bench/zf_log-bench-mt.cpp

-#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;
-
-static void output_callback(zf_log_message *msg)
-{
-    *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;
-    }
-    zf_log_set_output_callback(ZF_LOG_PUT_STD, output_callback);
-
-    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;
-}

bench/zf_log-bench.cpp

-#include <stdio.h>
-#include <zf_log.c>
-
-const char g_path[] = "logs/zf_log.txt";
-static FILE *g_f;
-
-static void output_callback(zf_log_message *msg)
-{
-    *msg->p = '\n';
-    fwrite(msg->buf, msg->p - msg->buf + 1, 1, g_f);
-}
-
-int main(int, char* [])
-{
-    g_f = fopen(g_path, "wb");
-    if (!g_f)
-    {
-        ZF_LOGE_AUX(ZF_LOG_STDERR, "Failed to open log file: %s", g_path);
-        return -1;
-    }
-    zf_log_set_output_callback(ZF_LOG_PUT_STD, output_callback);
-
-    const int howmany = 1000000;
-    for(int i  = 0 ; i < howmany; ++i)
-        ZF_LOGI("zf_log message #%i: This is some text for your pleasure", i);
-    fclose(g_f);
-    return 0;
-}