Linux Resources Monitoring

#define _MULTI_THREADED // using kernel thread

#include 
#include 
#include 
#include 




//pthread_cond_t      cond    = PTHREAD_COND_INITIALIZER;
pthread_cond_t      cond;
pthread_mutex_t     mutex;


void *thread_f(void *param)
{
int ret;


while(1){
ret = pthread_mutex_lock(&mutex);

printf("Thread is Waiting.....\n");
ret = pthread_cond_wait(&cond, &mutex);
printf("Thread is Running\n");

ret = pthread_mutex_unlock(&mutex);
}
}




int main(int argc, char **argv)
{

pthread_cond_init(&cond, NULL);/// pthread_create를 호출하기 전에, cond과mutex를 초기화 해야 된다
pthread_mutex_init(&mutex, NULL);

pthread_t   pth;
int ret;

ret = pthread_create(&pth, NULL, thread_f, NULL);
printf("pthread_create\n");

sleep(5);

//    pthread_cond_init(&cond, NULL);
//    pthread_mutex_init(&mutex, NULL);




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