contiki/examples/sky/test-coffee.c

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/*
* Copyright (c) 2008, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* Basic test for CFS/Coffee.
* \author
* Nicolas Tsiftes <nvt@sics.se>
*/
#include "contiki.h"
#include "cfs/cfs.h"
#include "cfs/cfs-coffee.h"
#include "lib/crc16.h"
#include "lib/random.h"
#include <stdio.h>
#include <string.h>
PROCESS(testcoffee_process, "Test CFS/Coffee process");
AUTOSTART_PROCESSES(&testcoffee_process);
#define FAIL(x) error = (x); goto end;
#define FILE_SIZE 4096
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/*---------------------------------------------------------------------------*/
static int
coffee_test_basic(void)
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{
int error;
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int wfd, rfd, afd;
unsigned char buf[256];
int r;
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cfs_remove("T1");
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wfd = rfd = afd = -1;
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for(r = 0; r < sizeof(buf); r++) {
buf[r] = r;
}
/* Test 1: Open for writing. */
wfd = cfs_open("T1", CFS_WRITE);
if(wfd < 0) {
FAIL(1);
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}
/* Test 2 and 3: Write buffer. */
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r = cfs_write(wfd, buf, sizeof(buf));
if(r < 0) {
FAIL(2);
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} else if(r < sizeof(buf)) {
FAIL(3);
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}
/* Test 4: Deny reading. */
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r = cfs_read(wfd, buf, sizeof(buf));
if(r >= 0) {
FAIL(4);
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}
/* Test 5: Open for reading. */
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rfd = cfs_open("T1", CFS_READ);
if(rfd < 0) {
FAIL(5);
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}
/* Test 6: Write to read-only file. */
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r = cfs_write(rfd, buf, sizeof(buf));
if(r >= 0) {
FAIL(6);
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}
/* Test 7 and 8: Read the buffer written in Test 2. */
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memset(buf, 0, sizeof(buf));
r = cfs_read(rfd, buf, sizeof(buf));
if(r < 0) {
FAIL(7);
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} else if(r < sizeof(buf)) {
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printf("r=%d\n", r);
FAIL(8);
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}
/* Test 9: Verify that the buffer is correct. */
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for(r = 0; r < sizeof(buf); r++) {
if(buf[r] != r) {
printf("r=%d. buf[r]=%d\n", r, buf[r]);
FAIL(9);
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}
}
/* Test 10: Seek to beginning. */
if(cfs_seek(wfd, 0, CFS_SEEK_SET) != 0) {
FAIL(10);
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}
/* Test 11 and 12: Write to the log. */
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r = cfs_write(wfd, buf, sizeof(buf));
if(r < 0) {
FAIL(11);
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} else if(r < sizeof(buf)) {
FAIL(12);
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}
/* Test 13 and 14: Read the data from the log. */
cfs_seek(rfd, 0, CFS_SEEK_SET);
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memset(buf, 0, sizeof(buf));
r = cfs_read(rfd, buf, sizeof(buf));
if(r < 0) {
FAIL(14);
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} else if(r < sizeof(buf)) {
FAIL(15);
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}
/* Test 16: Verify that the data is correct. */
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for(r = 0; r < sizeof(buf); r++) {
if(buf[r] != r) {
FAIL(16);
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}
}
/* Test 17 to 20: Write a reversed buffer to the file. */
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for(r = 0; r < sizeof(buf); r++) {
buf[r] = sizeof(buf) - r - 1;
}
if(cfs_seek(wfd, 0, CFS_SEEK_SET) != 0) {
FAIL(17);
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}
r = cfs_write(wfd, buf, sizeof(buf));
if(r < 0) {
FAIL(18);
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} else if(r < sizeof(buf)) {
FAIL(19);
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}
if(cfs_seek(rfd, 0, CFS_SEEK_SET) != 0) {
FAIL(20);
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}
/* Test 21 and 22: Read the reversed buffer. */
cfs_seek(rfd, 0, CFS_SEEK_SET);
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memset(buf, 0, sizeof(buf));
r = cfs_read(rfd, buf, sizeof(buf));
if(r < 0) {
FAIL(21);
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} else if(r < sizeof(buf)) {
printf("r = %d\n", r);
FAIL(22);
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}
/* Test 23: Verify that the data is correct. */
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for(r = 0; r < sizeof(buf); r++) {
if(buf[r] != sizeof(buf) - r - 1) {
FAIL(23);
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}
}
error = 0;
end:
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cfs_close(wfd);
cfs_close(rfd);
return error;
}
/*---------------------------------------------------------------------------*/
static int
coffee_test_append(void)
{
int error;
int afd;
unsigned char buf[256], buf2[11];
int r, i, j, total_read;
#define APPEND_BYTES 1000
#define BULK_SIZE 10
cfs_remove("T2");
/* Test 1 and 2: Append data to the same file many times. */
for(i = 0; i < APPEND_BYTES; i += BULK_SIZE) {
afd = cfs_open("T3", CFS_WRITE | CFS_APPEND);
if(afd < 0) {
FAIL(1);
}
for(j = 0; j < BULK_SIZE; j++) {
buf[j] = 1 + ((i + j) & 0x7f);
}
if((r = cfs_write(afd, buf, BULK_SIZE)) != BULK_SIZE) {
printf("r=%d\n", r);
FAIL(2);
}
cfs_close(afd);
}
/* Test 3-6: Read back the data written previously and verify that it
is correct. */
afd = cfs_open("T3", CFS_READ);
if(afd < 0) {
FAIL(3);
}
total_read = 0;
while((r = cfs_read(afd, buf2, sizeof(buf2))) > 0) {
for(j = 0; j < r; j++) {
if(buf2[j] != 1 + ((total_read + j) & 0x7f)) {
FAIL(4);
}
}
total_read += r;
}
if(r < 0) {
FAIL(5);
}
if(total_read != APPEND_BYTES) {
FAIL(6);
}
cfs_close(afd);
error = 0;
end:
cfs_close(afd);
return error;
}
/*---------------------------------------------------------------------------*/
static int
coffee_test_modify(void)
{
int error;
int wfd;
unsigned char buf[256];
int r, i;
unsigned offset;
cfs_remove("T3");
wfd = -1;
if(cfs_coffee_reserve("T3", FILE_SIZE) < 0) {
FAIL(1);
}
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if(cfs_coffee_configure_log("T3", FILE_SIZE / 2, 11) < 0) {
FAIL(2);
}
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/* Test 16: Test multiple writes at random offset. */
for(r = 0; r < 100; r++) {
wfd = cfs_open("T2", CFS_WRITE | CFS_READ);
if(wfd < 0) {
FAIL(3);
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}
offset = random_rand() % FILE_SIZE;
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for(r = 0; r < sizeof(buf); r++) {
buf[r] = r;
}
if(cfs_seek(wfd, offset, CFS_SEEK_SET) != offset) {
FAIL(4);
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}
if(cfs_write(wfd, buf, sizeof(buf)) != sizeof(buf)) {
FAIL(5);
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}
if(cfs_seek(wfd, offset, CFS_SEEK_SET) != offset) {
FAIL(6);
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}
memset(buf, 0, sizeof(buf));
if(cfs_read(wfd, buf, sizeof(buf)) != sizeof(buf)) {
FAIL(7);
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}
for(i = 0; i < sizeof(buf); i++) {
if(buf[i] != i) {
printf("buf[%d] != %d\n", i, buf[i]);
FAIL(8);
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}
}
}
error = 0;
end:
cfs_close(wfd);
return error;
}
/*---------------------------------------------------------------------------*/
static int
coffee_test_gc(void)
{
int i;
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cfs_remove("alpha");
cfs_remove("beta");
for (i = 0; i < 100; i++) {
if (i & 1) {
if(cfs_coffee_reserve("alpha", random_rand() & 0xffff) < 0) {
return i;
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}
cfs_remove("beta");
} else {
if(cfs_coffee_reserve("beta", 93171) < 0) {
return i;
}
cfs_remove("alpha");
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}
}
return 0;
}
/*---------------------------------------------------------------------------*/
static void
print_result(const char *test_name, int result)
{
printf("%s: ", test_name);
if(result == 0) {
printf("OK\n");
} else {
printf("ERROR (test %d)\n", result);
}
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}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(testcoffee_process, ev, data)
{
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int start;
int result;
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PROCESS_BEGIN();
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start = clock_seconds();
printf("Coffee test started\n");
result = cfs_coffee_format();
print_result("Formatting", result);
result = coffee_test_basic();
print_result("Basic operations", result);
result = coffee_test_append();
print_result("File append", result);
result = coffee_test_modify();
print_result("File modification", result);
result = coffee_test_gc();
print_result("Garbage collection", result);
printf("Coffee test finished. Duration: %d seconds\n",
(int)(clock_seconds() - start));
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PROCESS_END();
}
/*---------------------------------------------------------------------------*/