BitchCXX

发件人: Sun,Yixing 
发送时间: 2013年11月7日 19:31
收件人: Zhang,Qida
主题: 贱器


class HeapProfile
{
public:
    HeapProfile()
    {
        _stop = false;
        _pid = getpid();
        pthread_create(&_tid, NULL, monitor, NULL);
    }

    static void* monitor(void*)
    {
        DIR *dir;
        struct dirent *dent;
        char buf[128];

        pthread_detach(pthread_self());

        BIGPIPE_LOG_FATAL("monitor running %d", _pid);

        while (!_stop) {
            sleep(5);
            dir = opendir("/tmp");
            while ((dent = readdir(dir))) {

                sprintf(buf, "heap_profile.start.%d", _pid);
                if (strcmp(buf, dent->d_name) == 0) {
                    BIGPIPE_LOG_FATAL("heap profile start");
                    HeapProfilerStart("thomas");
                    sprintf(buf, "/tmp/heap_profile.start.%d", _pid);
                    unlink(buf);
                    break;
                }

                sprintf(buf, "heap_profile.dump.%d", _pid);
                if (strcmp(buf, dent->d_name) == 0) {
                    BIGPIPE_LOG_FATAL("heap profile dump");
                    HeapProfilerDump("heap_file");
                    sprintf(buf, "/tmp/heap_profile.dump.%d", _pid);
                    unlink(buf);
                    break;
                }

                sprintf(buf, "heap_profile.stop.%d", _pid);
                if (strcmp(buf, dent->d_name) == 0) {
                    BIGPIPE_LOG_FATAL("heap profile stop");
                    HeapProfilerStop();
                    sprintf(buf, "/tmp/heap_profile.stop.%d", _pid);
                    unlink(buf);
                    _stop = true;
                    break;
                }

            }

            closedir(dir);
        }
        return NULL;
    }

private:
    static bool _stop;
    pthread_t   _tid;
    static pid_t       _pid;
};

bool HeapProfile::_stop;
pid_t HeapProfile::_pid;



然后在你需要的地方放个 HeapProfile 变量

libpath=/path/to/tcmalloc
LDFLAGS 加上 -L$libpath/lib -ltcmalloc
CPPFLAGS 加上 -I$libpath/include


启动进程 
LD_PRELOAD=$libpath/lib/libtcmalloc.so ./your_bin

启动： touch /tmp/heap_profile.start.17281 
DUMP:  touch /tmp/heap_profile.dump.17281



////问题解决之后，要工整地抽象成工具