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#ifndef MT_THREAD_H
#define MT_THREAD_H
#include <memory.h>
#include "base.h"
#include <pthread.h>
#include <signal.h>
namespace mt
{
class thread
{
MT_PREVENT_COPY(thread)
public:
typedef thread this_type;
typedef void base_type;
thread(void) : flags(0)
{
;
}
virtual ~thread(void)
{
;
}
virtual bool start(void)
{
if ((this->flags & thread_started) != 0) return false;
pthread_create(&(this->tid), 0, this_type::thread_func, reinterpret_cast<void *>(this));
/*
sched_param sp;
memset(&sp, 0, sizeof(sched_param));
sp.sched_priority = sched_get_priority_min(SCHED_OTHER);
sp.sched_priority = 0; // normal
pthread_setschedparam(this->tid, SCHED_OTHER, &sp);
*/
this->flags |= thread_started;
return true;
}
virtual bool wait(void)
{
if ((this->flags & thread_started) == 0) return false;
pthread_join(this->tid, 0);
this->flags &= ~thread_started;
return true;
}
virtual bool kill(void)
{
if ((this->flags & thread_started) == 0) return false;
pthread_kill(this->tid, 0);
this->flags &= ~(thread_started | thread_running);
return true;
}
bool is_started(void) const
{
return ((this->flags & thread_started) != 0);
}
bool is_running(void) const
{
return ((this->flags & thread_running) != 0);
}
protected:
virtual void run(void)
{
;
}
private:
enum thread_flags
{
thread_none = ( 0),
thread_started = (1 << 0),
thread_running = (1 << 1)
};
volatile unsigned int flags;
pthread_t tid;
static void * thread_func(void * param)
{
this_type * p_this = reinterpret_cast<this_type *>(param);
MT_ASSERT(p_this != 0);
p_this->flags |= thread_running;
p_this->run();
p_this->flags &= ~thread_running;
return 0;
}
};
}
#endif // MT_THREAD_H
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