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电梯直达

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发表于 2009-08-06 21:55 |只看该作者 |倒序浏览

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在学习的时候遇到的问题，请各位大大帮帮忙。
编译的哦时候出错是
singerinsky@ubuntu:~/study$ g++ h.cpp t.h
/tmp/ccaBkhXY.o: In function `MThread::MThread()':
h.cpp

.text._ZN7MThreadC1Ev[MThread::MThread()]+0xd): undefined reference to `CThread::CThread()'
/tmp/ccaBkhXY.o: In function `MThread::~MThread()':
h.cpp

.text._ZN7MThreadD0Ev[MThread::~MThread()]+0x16): undefined reference to `CThread::~CThread()'
/tmp/ccaBkhXY.o: In function `MThread::~MThread()':
h.cpp

.text._ZN7MThreadD1Ev[MThread::~MThread()]+0x16): undefined reference to `CThread::~CThread()'
/tmp/ccaBkhXY.o

.rodata._ZTI7MThread[typeinfo for MThread]+0x

: undefined reference to `typeinfo for CThread'
collect2: ld returned 1 exit status

这个是 main函数的

   #include "t.h"
  #include "stdio.h"
  #include <unistd.h>
  
  
  int main()
  {
  
          MThread m;
          return 1;
  }

这个是t.h

  1 #include "stdio.h"
  2 #include <unistd.h>
  3 #include "CThread.h"
  4
  5 class MThread:public CThread
  6 {
  7       public:
  8                MThread(){};
  9                virtual ~MThread(){};
 10
 11
 12       protected:
 13                void Run()
 14                {
 15                      while(1)
 16                      {
 17                               printf("Thread");
 18                               sleep(1);
 19                      }
 20                }
 21 };

这个是 CThread.h

  1 #ifndef __G_THREAD__
  2 #define __G_THREAD__
  3
  4 #include <pthread.h>
  5 #include "common.h"
  6 #include <assert.h>
  7 #include "NoCopyable.h"
  8
  9 class CThread:private G_NoCopyable
10 {
11       public:
12                CThread();
13                virtual ~CThread();
14                pthread_t getThreadId();
15                bool Start();
16
17                void pause();
18
19                void continues();
20
21       private:
22                void maskSIGUSR1();
23
24                pthread_t m_pid;
25
26                sigset_t m_waitSig;
27
28                static void *threadFun(void *arg);
29       protected:
30                virtual void Run() = 0;
31 };
32
33 #endif
34

这个是CThread.cpp

CThread::CThread() : m_pid(0)
 26 {
 27       maskSIGUSR1();
 28       sigemptyset(&m_waitSig);
 29       sigaddset(&m_waitSig, SIGUSR1);
 30 }
 31
 32 CThread::~CThread()
 33 {
 34 }
 35
 36 void CThread::maskSIGUSR1()
 37 {
 38       sigset_t sig;
 39       sigemptyset(&sig);
 40       sigaddset(&sig , SIGUSR1);
 41       pthread_sigmask(SIG_BLOCK , &sig , NULL);
 42 }
 43
 44 pthread_t CThread::getThreadId()
 45 {
 46       return m_pid;
 47 }
 48
"CThread.cpp" 84L, 1352C