Google Glog Demo Code.

来源：互联网发布：网络诋毁编辑：程序博客网时间：2024/06/05 19:30

#include <glog/logging.h>#include <glog/raw_logging.h>#include<vector>using namespace std;void ProcessSignal(const char* data, int size){        LOG(ERROR) << __func__ << ":Error..." << std::string(data,size);}int main(int argc, char* argv[]){    FLAGS_log_dir = "/home/qsun/glog";    google::InitGoogleLogging(argv[0]);    google::InstallFailureSignalHandler();    google::InstallFailureWriter(&ProcessSignal);    int num_cookies = 5;    LOG(INFO) << "Found " << num_cookies << " cookies";    LOG(INFO) << "This is INFO";    LOG(WARNING) << "This is WARNING";    LOG(ERROR) << "This is Error";    num_cookies = 100;    LOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";    for(int i = 0; i < num_cookies; i++)    {        LOG_EVERY_N(INFO, 10) << "Got the " << google::COUNTER << "th cookie";        LOG_IF_EVERY_N(WARNING, (i > 62), 10) << "Got the " << google::COUNTER << "th big cookie";        LOG_FIRST_N(ERROR, 10) << "Got the " << google::COUNTER << "th cookie";    }    //  g++ -o  -D NDEBUG glogTest glogTest.o -I /home/qsun/tools/glog/include/ -L /home/qsun/tools/glog/lib/ -lglog    DLOG(INFO) << "Debug mode: Found cookies";    // Check Macros    CHECK_LT(num_cookies, 101) << "Write failed!";    CHECK_NE(1, 2) << ": The world must be ending!";    // GLOG_v=2 ./glogTestVerbose    VLOG(1) << "I'm printed when you run the program with --v=1 or higher";    VLOG(2) << "I'm printed when you run the program with --v=2 or higher";    VLOG_IF(1, (1025 > 1024))         << "I'm printed when size is more than 1024 and when you run the "                        "program with --v=1 or more";    VLOG_EVERY_N(1, 10)        << "I'm printed every 10th occurrence, and when you run the program "        "with --v=1 or more. Present occurence is " << 1;    VLOG_IF_EVERY_N(1, (1024 > 1024), 10)        << "I'm printed on every 10th occurence of case when size is more "        " than 1024, when you run the program with --v=1 or more. "        "Present occurence is " << 1;    // Test FailureSignalHandler   // vector<int> a;   // a[3]=4;     return 0;}

Useful links about google glog:

1. http://code.google.com/p/google-glog/

2. http://www.cnblogs.com/davidyang2415/p/3861109.html

3. http://www.rainhome.org/%E7%BB%86%E7%9C%8Bglog/

4. http://stackoverflow.com/questions/11477384/are-google-log-entries-wrapped-by-a-mutex

5. http://www.codeproject.com/Articles/288827/g-log-An-efficient-asynchronous-logger-using-Cplus

1 0