#include "thread/Thread.h"

#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>

typedef struct ThreadPthreadImpl
{
  pthread_t thread;
} ThreadPthreadImpl;


Thread* createThread(ThreadFn threadFn, void* arg)
{
  ThreadPthreadImpl* pthreadImpl = NULL;
  Thread* thread = calloc(1, sizeof(Thread));
  thread->impl = calloc(1, sizeof(ThreadPthreadImpl));
  pthreadImpl = (ThreadPthreadImpl*)thread->impl;
  if (pthread_create(&(pthreadImpl->thread), NULL, threadFn, arg) != 0) {
    printf("Thread: Failed to create thread.\n");
  }
  return thread;
}

void joinThread(Thread* thread)
{
  ThreadPthreadImpl* pthreadImpl = (ThreadPthreadImpl*)thread->impl;
  pthread_join(pthreadImpl->thread, NULL);
}

void killThread(Thread* thread)
{
  ThreadPthreadImpl* pthreadImpl = (ThreadPthreadImpl*)thread->impl;
  pthread_kill(pthreadImpl->thread, SIGUSR1); // thread needs to handle or SIG_IGN this
}

void freeThread(Thread** thread)
{
  free((ThreadPthreadImpl*)((*thread)->impl));
  free(*thread);
  *thread = NULL;
}