test.c

来自「ARM嵌入式应用开发典型实例配书光盘,希望对你有用！」· C语言 代码 · 共 101 行

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

#include "fifo.h"

#define	TOTAL_COUNT		100

void proc_put(HFIFO handle)
{
	int cnt, remain;
	char buf[2048];

	remain = 8;
	for(cnt = 0; cnt < TOTAL_COUNT; cnt++)
	{
		sprintf(buf, "Count: %d", cnt);
		fifo_put(handle, buf, strlen(buf), FIFO_FLG_BLOCK);

		printf("[FIFO] [SEND] %s\n", buf);

		remain--;

		if(remain == 0)
		{
			fifo_tag_trigger(handle, 0);
			remain = 8;
		}

		{
			struct timespec tm;
			tm.tv_sec	= 0;
			tm.tv_nsec	= 1000000;

			nanosleep(&tm, NULL);
		}
	}

	fifo_tag_trigger(handle, 0);

}

void proc_get()
{
	int cnt;

	HFIFO	handle;
	size_t	slotsz;
	int	len;

	char buf[2048];

	handle = fifo_find_handle("fifotest", &slotsz);

	printf("We get it! Address: %p\n", handle);

	for(cnt = 0; cnt < TOTAL_COUNT; )
	{
		if(fifo_tag_check(handle, 0))
		{
			while((len=fifo_get(handle, buf, 2048, FIFO_FLG_BLOCK)) >= 0)
			{
				buf[len] = 0;
				printf("[FIFO] [RECV] %s\n", buf);

				cnt++;
			}
		}
		else
		{
			struct timespec tm;
			tm.tv_sec	= 0;
			tm.tv_nsec	= 1000000;

			nanosleep(&tm, NULL);
		}
	}
}

main()
{
	HFIFO handle;

	/* Create FIFO */
	handle = fifo_create("fifotest", 128, 1460);

	if(!fork())
	{
		proc_get();
		sleep(1);
	}
	else
	{
		proc_put(handle);

		sleep(10);

		fifo_destroy(handle);
	}
}