app3.c

来自「pebble」· C语言 代码 · 共 99 行

/* 
 * Copyright 1999, 2000, 2001, 2002 Lucent Technologies Inc.
 * All Rights Reserved.
 * Information Sciences Research Center, Bell Labs.
 *
 * LUCENT TECHNOLOGIES DOES NOT CLAIM MERCHANTABILITY OF THIS SOFTWARE 
 * OR THE SUITABILITY OF THIS SOFTWARE FOR ANY PARTICULAR PURPOSE. The
 * software is provided "as is" without expressed or implied warranty 
 * of any kind.
 *
 * These notices must be retained in any copies of any part of this
 * software.
 *
 */

#include "string.h"
#include "pebble.h"
#include "unistd.h"
#include "machine/cpu.h"

#define	N	1024

char *out = "The Quick Brown Fox Jumped Over the Lazy Dog";

int
main(int argc, char *argv[])
{
	int i;
	char buf[N];
	char msg[NAMELEN];
	int errcount = 0;

	printf("test driver starting\n");

	msg[0] = '\0';
	i = get_error(msg);
	printf("initial get_error returns %d msg=\"%s\"\n", i, msg);
	

	i = write(1, out, -1);
	printf("system call write %08x,%d returns %d\n", (int)out, -1, i);
	if (i < 0) {
		get_error(msg);
		printf("(expected) error string=\"%s\"\n", msg);
	} else {
		errcount++;
		printf("got %d, which is not expected!", i);
	}
	
	i = write(1, out, strlen(out));
	printf("\nsystem call write %d chars returns %d\n", strlen(out), i);
	if (i < 0) {
		errcount++;
		get_error(msg);
		printf("unexpected error string=\"%s\"\n", msg);
	} 
	
/* Uncomment this to see the expected failure */
#if 0
	printf("calling read expected to fail (asid: %d, thread id: %08x)\n",
			get_asid(), (int)get_thread());
	i = read(0, KSEG0_BASE, N);
	printf("system call read %08x,%d returns %d\n",
		(int)KSEG0_BASE, N, i);
	if (i < 0) {
		get_error(msg);
		printf("error string=\"%s\"\n", msg);
	} else {
		errcount++;
		printf("got %d, which is not expected!", i);
	}
#endif
	
	i = read(0, buf, 1000000);
	printf("system call read %08x,%d returns %d\n", (int)buf, 1000000, i);
	if (i < 0) {
		get_error(msg);
		printf("error string=\"%s\"\n", msg);
	} else {
		errcount++;
		printf("got %d, which is not expected!", i);
	}
	
	printf("Type a string and hit enter\n");
	i = read(0, buf, N);
	printf("read(%08x,%d) returns %d\n", (int)buf, N, i);
	if (i >= 0)
		printf("returned value=\"%s\"\n", buf);
	else	{
		errcount++;
		get_error(msg);
		printf("error string=\"%s\"\n", msg);
	}

/*	printf("driver_get()=%d\n", driver_get()); */
	printf("APP3 TEST ENDED, %d ERRORS\n", errcount);
	return(1);
}