task.c

来自「这是一个在linux平台上进行内存共享的例子」· C语言 代码 · 共 38 行

#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include "mbuff.h"
static int * mem;
static done;
void quit ()
{
	done = 1;
	return;
}

int main()
{
	int i;
	int last;
	mem = (int *) mbuff_alloc("world", sizeof(int));
	if (mem == NULL)
		return 1;
	*mem = 0;
	last = *mem;
	done = 0;
	signal(SIGINT, quit);
	while(!done) {
		usleep (100000);
		if (last != *mem) {
			if (*mem % 2 != 0)
				printf("hello world\n");
			else
				printf("bye world\n");
			last = *mem;
		}
	}
	mbuff_free("world", mem);
	return 0;
}