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#include
#include
#include 【两个线程按顺序打印1～10】#include pthread_mutex_t lock;
pthread_cond_t cond;
int i = 1;
void* salewinds1(void* args)
{
while(1)
{
pthread_mutex_lock(&lock);
if(i == 10)
{pthread_mutex_unlock(&lock);
//退出前解锁否则会造成别的线程死锁
pthread_exit(0);
}
while(i % 2 == 0)
{
pthread_cond_wait(&cond, &lock);
}
printf("%d\n", i);
i += 1;
if(i > 10)
{pthread_mutex_unlock(&lock);
pthread_exit(0);
}
pthread_cond_broadcast(&cond);
pthread_mutex_unlock(&lock);
}
return NULL;
}void* salewinds2(void* args)
{
while(1)
{
pthread_mutex_lock(&lock);
if(i > 10)
{pthread_mutex_unlock(&lock);
pthread_exit(0);
}
while(i % 2 == 1)
{
pthread_cond_wait(&cond, &lock);
}
printf("%d\n", i);
i += 1;
if(i == 10)
{pthread_mutex_unlock(&lock);
pthread_exit(0);
}
pthread_cond_broadcast(&cond);
pthread_mutex_unlock(&lock);
}
return NULL;
}int main(int argc,const char* argv[])
{ pthread_t thd1;
pthread_t thd2;
int val1=1;
int val2=2;
pthread_mutex_init(&lock, NULL);
pthread_cond_init(&cond, NULL);
pthread_create(&thd1, NULL, salewinds1, NULL);
pthread_create(&thd2, NULL, salewinds2, NULL);
pthread_join(thd1, (void**)&val1);
pthread_join(thd2, (void**)&val2);
pthread_mutex_destroy(&lock);
pthread_cond_destroy(&cond);
return 0;
}
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