?? pthread_test.c
字號:
#include<stddef.h>
#include<stdio.h>
#include<unistd.h>
#include"pthread.h"
void reader_function(void);
void writer_function(void);
char buffer;
int buffer_has_item=0;
pthread_mutex_t mutex;
main()
{
pthread_t reader;
pthread_mutex_init(&mutex,NULL);
pthread_create(&reader,NULL,(void*)&reader_function,NULL);
writer_function();
}
void writer_function(void)
{
while(1)
{
pthread_mutex_lock(&mutex);
if(buffer_has_item==0)
{
buffer='a';
printf("make a new item\n");
buffer_has_item=1;
}
pthread_mutex_unlock(&mutex);
}
}
void reader_function(void)
{
while(1)
{
pthread_mutex_lock(&mutex);
if(buffer_has_item==1)
{
buffer='\0';
printf("consume item\n");
buffer_has_item=0;
}
pthread_mutex_unlock(&mutex);
}
}
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