/*
* Copyright (c) 2016, 2018 Chris Johns <chrisj@rtems.org>. All rights reserved.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tmacros.h"
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <rtems/rtl/rtl.h>
#include <rtems/rtl/rtl-obj-cache.h>
#include <rtems/rtl/rtl-trace.h>
#include "dl-cache.h"
#define CACHE_SIZE (2048)
#define CACHE_SIZE_TOO_BIG (-1)
#define CACHE_BUFFER_SIZE (CACHE_SIZE * 4)
static uint8_t* contents;
static const char *const filename = "/dl-test";
static void dl_cache_create_file(void)
{
uint16_t* p;
int fd;
int i;
rtems_test_assert((contents = malloc(CACHE_BUFFER_SIZE)) != NULL);
memset(contents, 0, CACHE_BUFFER_SIZE);
p = (uint16_t*) contents;
for (i = 0; i < (CACHE_BUFFER_SIZE / sizeof(uint16_t)); ++i)
*p++ = i;
rtems_test_assert((fd = open(filename,
O_WRONLY | O_TRUNC | O_CREAT,
S_IRUSR | S_IWUSR)) >= 0);
rtems_test_assert(write(fd, contents, CACHE_BUFFER_SIZE) == CACHE_BUFFER_SIZE);
rtems_test_assert(close(fd) >= 0);
}
static bool dl_cache_check(void* buffer, off_t offset, size_t length)
{
uint16_t* b;
uint16_t* c;
int i;
b = buffer;
c = (uint16_t*) (contents + offset);
printf("cache: buffer: ");
for (i = 0; i < 4; ++i)
printf("%04x/%04x ", b[i], c[i]);
printf("\n");
return memcmp(buffer, contents + offset, length) == 0;
}
static off_t dl_cache_buffer_offset(rtems_rtl_obj_cache* cache, void* buffer)
{
return (off_t) (((uint8_t*) buffer) - ((uint8_t*) cache->buffer));
}
static void dl_init_rtl(void)
{
/*
* Check the RTL object is created and can be locked and unlocked.
*/
rtems_test_assert(rtems_rtl_data_unprotected () == NULL);
rtems_test_assert(rtems_rtl_lock () != NULL);
rtems_rtl_unlock ();
rtems_test_assert(rtems_rtl_data_unprotected () != NULL);
rtems_rtl_trace_set_mask(RTEMS_RTL_TRACE_ALL | RTEMS_RTL_TRACE_CACHE);
}
int dl_cache_test(void)
{
rtems_rtl_obj_cache cache;
int fd;
void* buffer;
off_t offset_in;
off_t offset;
size_t length_in;
size_t length;
/*
* Make sure the RTL can initialise.
*/
dl_init_rtl();
/*
* Create the file to test the cache with.
*/
dl_cache_create_file();
/*
* Check the too big error is handled.
*/
printf ("cache create with large size\n");
rtems_test_assert(rtems_rtl_obj_cache_open(&cache,
CACHE_SIZE_TOO_BIG) == false);
/*
* Create a cache.
*/
printf ("cache create\n");
rtems_test_assert(rtems_rtl_obj_cache_open(&cache,
CACHE_SIZE) == true);
rtems_test_assert(cache.fd == -1);
rtems_test_assert(cache.file_size == 0);
rtems_test_assert(cache.size == CACHE_SIZE);
rtems_test_assert(cache.buffer != NULL);
/*
* Open the file to use with the cache tests.
*/
printf ("cache file open\n");
rtems_test_assert((fd = open(filename, O_RDONLY)) >= 0);
buffer = NULL; offset_in = 0; length_in = length = CACHE_SIZE / 2;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(offset == offset_in);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = 0; length_in = length = CACHE_SIZE;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(offset == offset_in);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = CACHE_SIZE / 2; length_in = length = CACHE_SIZE / 2;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(offset == offset_in);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = CACHE_BUFFER_SIZE - CACHE_SIZE; length_in = length = CACHE_SIZE;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(offset == 0);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = CACHE_BUFFER_SIZE - (CACHE_SIZE / 2); length_in = length = CACHE_SIZE / 2;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(offset == (CACHE_SIZE / 2));
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = 0; length_in = length = CACHE_SIZE / 4;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(offset == offset_in);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = 0; length_in = length = CACHE_SIZE / 8;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(offset == offset_in);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = 0; length_in = length = CACHE_SIZE;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(offset == offset_in);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = CACHE_BUFFER_SIZE - 40; length_in = length = 16;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = CACHE_BUFFER_SIZE - 40; length_in = length = 40;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = CACHE_BUFFER_SIZE - 40; length_in = length = 80;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(length == 40);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = CACHE_BUFFER_SIZE - CACHE_SIZE + 80;
length_in = length = 20;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
buffer = NULL; offset_in = CACHE_BUFFER_SIZE - 40;
length_in = length = 40;
printf("cache read: in: offset=%d length=%d\n", (int) offset_in, (int) length);
rtems_test_assert(rtems_rtl_obj_cache_read(&cache,
fd,
offset_in,
&buffer,
&length) == true);
offset = dl_cache_buffer_offset(&cache, buffer);
printf("cache read: out: offset=%d length=%d\n", (int) offset, (int) length);
rtems_test_assert(length == length_in);
rtems_test_assert(dl_cache_check(buffer, (int) offset_in, length) == true);
rtems_rtl_obj_cache_close(&cache);
return 0;
}
