prctl(PR_GET_NAME, tname);

#include <sys/prctl.h>
static char tname[16];
static char* get_current_threadname(){
    prctl(PR_GET_NAME, tname);
    return tname;
}

//#define P_LOGI(fmt, ...) ALOGI("[%s ],tid:%u,%s,F:%s:%d,Fun:%s " fmt,(char*)get_current_threadname(), (unsigned int)gettid(),mark_label,(char*)__FILE__,__LINE__,(char*)__FUNCTION__,##__VA_ARGS__)

 

之前自己寫的bug無數的介面：一直不明白為什麼我自己寫的就會導致執行緒錯亂！！！

//------------------------------------------------------------------------------
//personal debug switch////////////////////////////////////////////////////////// 
//------------------------------------------------------------------------------
#ifndef P_LOGI 
#define P_DEBUG	1  //0 turn off debug ,1 turn on debug 
#if P_DEBUG 
#include "utils/Log.h"
//#ifndef _PTHREAD_H_
#include <pthread.h>
//#define _PTHREAD_H_
//#endif

/*
 *#ifndef _LOGHEADER_H_
 *#include "../../../gecko/ipc/contentproc/logheader.h"
 *#define ENABLE_THREAD_NAME 1 // 0 disable thread name, 1 enable thread name 
 *#endif
 */


#ifndef ENABLE_THREAD_NAME
#define ENABLE_THREAD_NAME 1 // 0 disable thread name, 1 enable thread name 
#if ENABLE_THREAD_NAME //begin of ENABLE_THREAD_NAME
//#define BUF_SIZE 1024


/*
 *static char* getNameByPid(pid_t pid,pid_t tid) {
 *    char proc_pid_path[BUF_SIZE];
 *    char buf[BUF_SIZE];
 *    char *task_name = new char ;
 *    sprintf(proc_pid_path, "/proc/%d/task/%d/stat", pid,tid);
 *    FILE* fp = fopen(proc_pid_path, "r");
 *    if(NULL != fp){
 *        if( fgets(buf, BUF_SIZE-1, fp)== NULL ){
 *            fclose(fp);
 *        }
 *        fclose(fp);
 *        //sscanf(buf, "%*s%[^\n]%*s", task_name);
 *        sscanf(buf, "%*s%*[^(](%[^)]s", task_name);
 *        return task_name;
 *    }
 *    else{
 *        delete task_name;
 *        return (char*)"name-unknown";
 *    }
 *}
 */
#endif //end of ENABLE_THREAD_NAME 1 
#endif //end of ifndef ENABLE_THREAD_NAME  

static char mark_label[64] = "pmain-Nuwa";
#define SEPARATOR_LINE "----------------------------------"
#define LONNG_LINE = "------------------------------------------------------------------------------"
#if ENABLE_THREAD_NAME //begin of ENABLE_THREAD_NAME 
#define P_LOGI(fmt, ...) ALOGI("[%s ],tid:%u,%s,F:%s:%d,Fun:%s " fmt,(char*)get_current_threadname(), (unsigned int)gettid(),mark_label,(char*)__FILE__,__LINE__,(char*)__FUNCTION__,##__VA_ARGS__)
#else // log without thread name  
#define P_LOGI(fmt, ...) ALOGI("[%s],tid:%u,%s,F:%s:%d,Fun:%s " fmt,"", (unsigned int)gettid(),mark_label,(char*)__FILE__,__LINE__,(char*)__FUNCTION__,##__VA_ARGS__)
#endif //end of ENABLE_THREAD_NAME 
#else
#define P_LOGI(...)
#endif //end of P_DBUG
#endif //end of P_LOGI 
//------------------------------------------------------------------------------
///////////////////////////////////////////////////////////////////////////////
//------------------------------------------------------------------------------
 

原因分析：以後寫。。。