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#ifndef THREAD_H
#define THREAD_H
#include "port.h"
#include <sys/poll.h>
#include <pthread.h>
class Thread;
typedef void *PVOID;
typedef struct
{
Thread *f;
PVOID param;
int threadNum;
} THREAD_DATA;
class Thread
{
protected:
// Virtual function that is called when the thread is started.
// The parameter is the pointer that is passed first to the go() function
virtual int action(PVOID param) = 0;
// constructor for main thread class
Thread();
// constructor for children.
Thread(int threadNum, const Thread *parent);
virtual ~Thread();
void go(PVOID param, int num); // creates all threads
int getNumThreads() const { return m_numThreads; }
// Virtual function to construct a new class.
// the following comment has the implementation
// return new class(threadNum, this);
virtual Thread *newThread(int threadNum) = 0;
// set the return value of the thread, probably not needed
void setRetVal(int rc);
protected:
int getThreadNum() const { return m_threadNum; }
int Read(PVOID buf, int size, int timeout = 60);
int Write(PVOID buf, int size, int timeout = 60);
protected:
int m_read;
int m_write;
private:
int m_threadNum;
pollfd m_readPoll;
pollfd m_writePoll;
int m_parentRead;
int m_parentWrite;
int m_childRead;
int m_childWrite;
int m_numThreads;
int *m_retVal;
pthread_t *m_thread_info;
Thread(const Thread &f);
Thread & operator =(const Thread &f);
friend PVOID thread_func(PVOID param);
};
#endif
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