// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
// Copyright (c) 2001-2007 International Computer Science Institute
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software")
// to deal in the Software without restriction, subject to the conditions
// listed in the XORP LICENSE file. These conditions include: you must
// preserve this copyright notice, and you cannot mention the copyright
// holders in advertising related to the Software without their permission.
// The Software is provided WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED. This
// notice is a summary of the XORP LICENSE file; the license in that file is
// legally binding.
#ident "$XORP: xorp/libxorp/test_time_slice.cc,v 1.10 2007/02/16 22:46:26 pavlin Exp $"
#include "libxorp_module.h"
#include "libxorp/xorp.h"
#include "libxorp/xlog.h"
#include "libxorp/eventloop.hh"
#include "libxorp/exceptions.hh"
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include "time_slice.hh"
//
// XXX: MODIFY FOR YOUR TEST PROGRAM
//
static const char *program_name = "test_time_slice";
static const char *program_description = "Test TimeSlice class";
static const char *program_version_id = "0.1";
static const char *program_date = "December 4, 2002";
static const char *program_copyright = "See file LICENSE.XORP";
static const char *program_return_value = "0 on success, 1 if test error, 2 if internal error";
static bool s_verbose = false;
bool verbose() { return s_verbose; }
void set_verbose(bool v) { s_verbose = v; }
static int s_failures = 0;
bool failures() { return s_failures; }
void incr_failures() { s_failures++; }
//
// printf(3)-like facility to conditionally print a message if verbosity
// is enabled.
//
#define verbose_log(x...) _verbose_log(__FILE__,__LINE__, x)
#define _verbose_log(file, line, x...) \
do { \
if (verbose()) { \
printf("From %s:%d: ", file, line); \
printf(x); \
} \
} while(0)
//
// Test and print a message whether two strings are lexicographically same.
// The strings can be either C or C++ style.
//
#define verbose_match(s1, s2) \
_verbose_match(__FILE__, __LINE__, s1, s2)
bool
_verbose_match(const char* file, int line, const string& s1, const string& s2)
{
bool match = s1 == s2;
_verbose_log(file, line, "Comparing %s == %s : %s\n",
s1.c_str(), s2.c_str(), match ? "OK" : "FAIL");
if (match == false)
incr_failures();
return match;
}
//
// Test and print a message whether a condition is true.
//
// The first argument is the condition to test.
// The second argument is a string with a brief description of the tested
// condition.
//
#define verbose_assert(cond, desc) \
_verbose_assert(__FILE__, __LINE__, cond, desc)
bool
_verbose_assert(const char* file, int line, bool cond, const string& desc)
{
_verbose_log(file, line,
"Testing %s : %s\n", desc.c_str(), cond ? "OK" : "FAIL");
if (cond == false)
incr_failures();
return cond;
}
/**
* Print program info to output stream.
*
* @param stream the output stream the print the program info to.
*/
static void
print_program_info(FILE *stream)
{
fprintf(stream, "Name: %s\n", program_name);
fprintf(stream, "Description: %s\n", program_description);
fprintf(stream, "Version: %s\n", program_version_id);
fprintf(stream, "Date: %s\n", program_date);
fprintf(stream, "Copyright: %s\n", program_copyright);
fprintf(stream, "Return: %s\n", program_return_value);
}
/**
* Print program usage information to the stderr.
*
* @param progname the name of the program.
*/
static void
usage(const char* progname)
{
print_program_info(stderr);
fprintf(stderr, "usage: %s [-v] [-h]\n", progname);
fprintf(stderr, " -h : usage (this message)\n");
fprintf(stderr, " -v : verbose output\n");
}
/**
* Test TimeSlice valid constructors.
*/
void
test_time_slice_valid_constructors()
{
//
// Constructor for a given time limit and test frequency.
//
TimeSlice time_slice(10, 20);
UNUSED(time_slice);
}
/**
* Test TimeSlice invalid constructors.
*/
void
test_time_slice_invalid_constructors()
{
//
// Currently, there are no TimeSlice invalid constructors.
//
}
/**
* Test TimeSlice operators.
*/
void
test_time_slice_operators()
{
//
// Currently, there are no TimeSlice operators.
//
}
/**
* Supporting function: sleep for a given number of seconds.
*/
void
slow_function(unsigned int sleep_seconds)
{
TimerList::system_sleep(TimeVal(sleep_seconds, 0));
}
/**
* Supporting function: sleep for a given number of microseconds.
*/
void
fast_function(unsigned int sleep_microseconds)
{
TimerList::system_sleep(TimeVal(0, sleep_microseconds));
}
/**
* Test TimeSlice operations.
*/
void
test_time_slice_operations()
{
unsigned int sec;
unsigned int usec;
unsigned int i, iter;
//
// Test single slow function.
//
verbose_log("TEST 'SINGLE SLOW_FUNCTION' BEGIN:\n");
verbose_log("Begin time = %s\n", xlog_localtime2string());
TimeSlice time_slice1(2000000, 1); // 2s, test every 1 iter
sec = 3;
verbose_log("Running slow function for %d seconds...\n", sec);
slow_function(sec);
verbose_log("End time = %s\n", xlog_localtime2string());
verbose_assert(time_slice1.is_expired(),
"is_expired() for a single slow function");
verbose_log("TEST 'SINGLE SLOW_FUNCTION' END:\n\n");
//
// Test single fast function.
//
verbose_log("TEST 'SINGLE FAST_FUNCTION' BEGIN:\n");
verbose_log("Begin time = %s\n", xlog_localtime2string());
TimeSlice time_slice2(2000000, 1); // 2s, test every 1 iter
usec = 3;
verbose_log("Running fast function for %d microseconds...\n", usec);
fast_function(usec);
verbose_log("End time = %s\n", xlog_localtime2string());
verbose_assert(! time_slice2.is_expired(),
"is_expired() for a single fast function");
verbose_log("TEST 'SINGLE FAST_FUNCTION' END:\n\n");
//
// Test fast function run multiple times.
//
verbose_log("TEST 'MULTI FAST_FUNCTION' BEGIN:\n");
verbose_log("Begin time = %s\n", xlog_localtime2string());
TimeSlice time_slice3(2000000, 10); // 2s, test every 10 iter
usec = 3;
iter = 1000000;
verbose_log("Running fast function %d times for %d microseconds each...\n",
iter, usec);
bool time_expired = false;
for (i = 0; i < iter; i++) {
if (time_slice3.is_expired()) {
time_expired = true;
break;
}
fast_function(usec);
}
verbose_log("End time = %s\n", xlog_localtime2string());
verbose_assert(time_expired,
c_format("is_expired() for multiple iterations of a fast function (expired after %d iterations)", i));
verbose_log("TEST 'MULTI FAST_FUNCTION' END:\n\n");
}
int
main(int argc, char * const argv[])
{
int ret_value = 0;
//
// Initialize and start xlog
//
xlog_init(argv[0], NULL);
xlog_set_verbose(XLOG_VERBOSE_LOW); // Least verbose messages
// XXX: verbosity of the error messages temporary increased
xlog_level_set_verbose(XLOG_LEVEL_ERROR, XLOG_VERBOSE_HIGH);
xlog_add_default_output();
xlog_start();
int ch;
while ((ch = getopt(argc, argv, "hv")) != -1) {
switch (ch) {
case 'v':
set_verbose(true);
break;
case 'h':
case '?':
default:
usage(argv[0]);
xlog_stop();
xlog_exit();
if (ch == 'h')
return (0);
else
return (1);
}
}
argc -= optind;
argv += optind;
XorpUnexpectedHandler x(xorp_unexpected_handler);
try {
EventLoop eventloop;
test_time_slice_valid_constructors();
test_time_slice_invalid_constructors();
test_time_slice_operators();
test_time_slice_operations();
ret_value = failures() ? 1 : 0;
UNUSED(eventloop);
} catch (...) {
// Internal error
xorp_print_standard_exceptions();
ret_value = 2;
}
//
// Gracefully stop and exit xlog
//
xlog_stop();
xlog_exit();
return (ret_value);
}
syntax highlighted by Code2HTML, v. 0.9.1