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/*
* libusb stress test program to perform simple stress tests
* Copyright © 2012 Toby Gray <toby.gray@realvnc.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <string.h>
#include <memory.h>
#include "libusb.h"
#include "libusb_testlib.h"
/** Test that creates and destroys a single concurrent context
* 10000 times. */
static libusb_testlib_result test_init_and_exit(libusb_testlib_ctx * tctx)
{
libusb_context * ctx = NULL;
int i;
for (i = 0; i < 10000; ++i) {
int r = libusb_init(&ctx);
if (r != LIBUSB_SUCCESS) {
libusb_testlib_logf(tctx,
"Failed to init libusb on iteration %d: %d",
i, r);
return TEST_STATUS_FAILURE;
}
libusb_exit(ctx);
ctx = NULL;
}
return TEST_STATUS_SUCCESS;
}
/** Tests that devices can be listed 1000 times. */
static libusb_testlib_result test_get_device_list(libusb_testlib_ctx * tctx)
{
libusb_context * ctx = NULL;
int r, i;
r = libusb_init(&ctx);
if (r != LIBUSB_SUCCESS) {
libusb_testlib_logf(tctx, "Failed to init libusb: %d", r);
return TEST_STATUS_FAILURE;
}
for (i = 0; i < 1000; ++i) {
libusb_device ** device_list;
ssize_t list_size = libusb_get_device_list(ctx, &device_list);
if (list_size < 0 || device_list == NULL) {
libusb_testlib_logf(tctx,
"Failed to get device list on iteration %d: %d (%p)",
i, -list_size, device_list);
return TEST_STATUS_FAILURE;
}
libusb_free_device_list(device_list, 1);
}
libusb_exit(ctx);
return TEST_STATUS_SUCCESS;
}
/** Tests that 100 concurrent device lists can be open at a time. */
static libusb_testlib_result test_many_device_lists(libusb_testlib_ctx * tctx)
{
#define LIST_COUNT 100
libusb_context * ctx = NULL;
libusb_device ** device_lists[LIST_COUNT];
int r, i;
memset(device_lists, 0, sizeof(device_lists));
r = libusb_init(&ctx);
if (r != LIBUSB_SUCCESS) {
libusb_testlib_logf(tctx, "Failed to init libusb: %d", r);
return TEST_STATUS_FAILURE;
}
/* Create the 100 device lists. */
for (i = 0; i < LIST_COUNT; ++i) {
ssize_t list_size = libusb_get_device_list(ctx, &(device_lists[i]));
if (list_size < 0 || device_lists[i] == NULL) {
libusb_testlib_logf(tctx,
"Failed to get device list on iteration %d: %d (%p)",
i, -list_size, device_lists[i]);
return TEST_STATUS_FAILURE;
}
}
/* Destroy the 100 device lists. */
for (i = 0; i < LIST_COUNT; ++i) {
if (device_lists[i]) {
libusb_free_device_list(device_lists[i], 1);
device_lists[i] = NULL;
}
}
libusb_exit(ctx);
return TEST_STATUS_SUCCESS;
#undef LIST_COUNT
}
/** Tests that the default context (used for various things including
* logging) works correctly when the first context created in a
* process is destroyed. */
static libusb_testlib_result test_default_context_change(libusb_testlib_ctx * tctx)
{
libusb_context * ctx = NULL;
int r, i;
for (i = 0; i < 100; ++i) {
/* First create a new context */
r = libusb_init(&ctx);
if (r != LIBUSB_SUCCESS) {
libusb_testlib_logf(tctx, "Failed to init libusb: %d", r);
return TEST_STATUS_FAILURE;
}
/* Enable debug output, to be sure to use the context */
libusb_set_debug(NULL, LIBUSB_LOG_LEVEL_DEBUG);
libusb_set_debug(ctx, LIBUSB_LOG_LEVEL_DEBUG);
/* Now create a reference to the default context */
r = libusb_init(NULL);
if (r != LIBUSB_SUCCESS) {
libusb_testlib_logf(tctx, "Failed to init libusb: %d", r);
return TEST_STATUS_FAILURE;
}
/* Destroy the first context */
libusb_exit(ctx);
/* Destroy the default context */
libusb_exit(NULL);
}
return TEST_STATUS_SUCCESS;
}
/* Fill in the list of tests. */
static const libusb_testlib_test tests[] = {
{"init_and_exit", &test_init_and_exit},
{"get_device_list", &test_get_device_list},
{"many_device_lists", &test_many_device_lists},
{"default_context_change", &test_default_context_change},
LIBUSB_NULL_TEST
};
int main (int argc, char ** argv)
{
return libusb_testlib_run_tests(argc, argv, tests);
}
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