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munit.c
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/* Copyright (c) 2013-2018 Evan Nemerson <evan@nemerson.com>
*
* 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, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/*** Configuration ***/
/* This is just where the output from the test goes. It's really just
* meant to let you choose stdout or stderr, but if anyone really want
* to direct it to a file let me know, it would be fairly easy to
* support. */
#if !defined(MUNIT_OUTPUT_FILE)
# define MUNIT_OUTPUT_FILE stdout
#endif
/* This is a bit more useful; it tells µnit how to format the seconds in
* timed tests. If your tests run for longer you might want to reduce
* it, and if your computer is really fast and your tests are tiny you
* can increase it. */
#if !defined(MUNIT_TEST_TIME_FORMAT)
# define MUNIT_TEST_TIME_FORMAT "0.8f"
#endif
/* If you have long test names you might want to consider bumping
* this. The result information takes 43 characters. */
#if !defined(MUNIT_TEST_NAME_LEN)
# define MUNIT_TEST_NAME_LEN 37
#endif
/* If you don't like the timing information, you can disable it by
* defining MUNIT_DISABLE_TIMING. */
#if !defined(MUNIT_DISABLE_TIMING)
# define MUNIT_ENABLE_TIMING
#endif
/*** End configuration ***/
#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE < 200809L)
# undef _POSIX_C_SOURCE
#endif
#if !defined(_POSIX_C_SOURCE)
# define _POSIX_C_SOURCE 200809L
#endif
/* Solaris freaks out if you try to use a POSIX or SUS standard without
* the "right" C standard. */
#if defined(_XOPEN_SOURCE)
# undef _XOPEN_SOURCE
#endif
#if defined(__STDC_VERSION__)
# if __STDC_VERSION__ >= 201112L
# define _XOPEN_SOURCE 700
# elif __STDC_VERSION__ >= 199901L
# define _XOPEN_SOURCE 600
# endif
#endif
/* Because, according to Microsoft, POSIX is deprecated. You've got
* to appreciate the chutzpah. */
#if defined(_MSC_VER) && !defined(_CRT_NONSTDC_NO_DEPRECATE)
# define _CRT_NONSTDC_NO_DEPRECATE
#endif
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
# include <stdbool.h>
#elif defined(_WIN32)
/* https://msdn.microsoft.com/en-us/library/tf4dy80a.aspx */
#endif
#include <limits.h>
#include <time.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <setjmp.h>
#if !defined(MUNIT_NO_NL_LANGINFO) && !defined(_WIN32)
# define MUNIT_NL_LANGINFO
# include <locale.h>
# include <langinfo.h>
# include <strings.h>
#endif
#if !defined(_WIN32)
# include <unistd.h>
# include <sys/types.h>
# include <sys/wait.h>
#else
# include <windows.h>
# include <io.h>
# include <fcntl.h>
# if !defined(STDERR_FILENO)
# define STDERR_FILENO _fileno(stderr)
# endif
#endif
#include "munit.h"
#define MUNIT_STRINGIFY(x) #x
#define MUNIT_XSTRINGIFY(x) MUNIT_STRINGIFY(x)
#if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_CC) || \
defined(__IBMCPP__)
# define MUNIT_THREAD_LOCAL __thread
#elif (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201102L)) || \
defined(_Thread_local)
# define MUNIT_THREAD_LOCAL _Thread_local
#elif defined(_WIN32)
# define MUNIT_THREAD_LOCAL __declspec(thread)
#endif
/* MSVC 12.0 will emit a warning at /W4 for code like 'do { ... }
* while (0)', or 'do { ... } while (1)'. I'm pretty sure nobody
* at Microsoft compiles with /W4. */
#if defined(_MSC_VER) && (_MSC_VER <= 1800)
# pragma warning(disable : 4127)
#endif
#if defined(_WIN32) || defined(__EMSCRIPTEN__)
# define MUNIT_NO_FORK
#endif
#if defined(__EMSCRIPTEN__)
# define MUNIT_NO_BUFFER
#endif
/*** Logging ***/
static MunitLogLevel munit_log_level_visible = MUNIT_LOG_INFO;
static MunitLogLevel munit_log_level_fatal = MUNIT_LOG_ERROR;
#if defined(MUNIT_THREAD_LOCAL)
static MUNIT_THREAD_LOCAL munit_bool munit_error_jmp_buf_valid = 0;
static MUNIT_THREAD_LOCAL jmp_buf munit_error_jmp_buf;
#endif
/* At certain warning levels, mingw will trigger warnings about
* suggesting the format attribute, which we've explicity *not* set
* because it will then choke on our attempts to use the MS-specific
* I64 modifier for size_t (which we have to use since MSVC doesn't
* support the C99 z modifier). */
#if defined(__MINGW32__) || defined(__MINGW64__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
#endif
MUNIT_PRINTF(5, 0)
static void munit_logf_exv(MunitLogLevel level, FILE *fp, const char *filename,
int line, const char *format, va_list ap) {
if (level < munit_log_level_visible)
return;
switch (level) {
case MUNIT_LOG_DEBUG:
fputs("Debug", fp);
break;
case MUNIT_LOG_INFO:
fputs("Info", fp);
break;
case MUNIT_LOG_WARNING:
fputs("Warning", fp);
break;
case MUNIT_LOG_ERROR:
fputs("Error", fp);
break;
default:
munit_logf_ex(MUNIT_LOG_ERROR, filename, line, "Invalid log level (%d)",
level);
return;
}
fputs(": ", fp);
if (filename != NULL)
fprintf(fp, "%s:%d: ", filename, line);
vfprintf(fp, format, ap);
fputc('\n', fp);
}
MUNIT_PRINTF(3, 4)
static void munit_logf_internal(MunitLogLevel level, FILE *fp,
const char *format, ...) {
va_list ap;
va_start(ap, format);
munit_logf_exv(level, fp, NULL, 0, format, ap);
va_end(ap);
}
static void munit_log_internal(MunitLogLevel level, FILE *fp,
const char *message) {
munit_logf_internal(level, fp, "%s", message);
}
void munit_logf_ex(MunitLogLevel level, const char *filename, int line,
const char *format, ...) {
va_list ap;
va_start(ap, format);
munit_logf_exv(level, stderr, filename, line, format, ap);
va_end(ap);
if (level >= munit_log_level_fatal) {
#if defined(MUNIT_THREAD_LOCAL)
if (munit_error_jmp_buf_valid)
longjmp(munit_error_jmp_buf, 1);
#endif
abort();
}
}
void munit_errorf_ex(const char *filename, int line, const char *format, ...) {
va_list ap;
va_start(ap, format);
munit_logf_exv(MUNIT_LOG_ERROR, stderr, filename, line, format, ap);
va_end(ap);
#if defined(MUNIT_THREAD_LOCAL)
if (munit_error_jmp_buf_valid)
longjmp(munit_error_jmp_buf, 1);
#endif
abort();
}
#if defined(__MINGW32__) || defined(__MINGW64__)
# pragma GCC diagnostic pop
#endif
#if !defined(MUNIT_STRERROR_LEN)
# define MUNIT_STRERROR_LEN 80
#endif
static void munit_log_errno(MunitLogLevel level, FILE *fp, const char *msg) {
#if defined(MUNIT_NO_STRERROR_R) || \
(defined(__MINGW32__) && !defined(MINGW_HAS_SECURE_API))
munit_logf_internal(level, fp, "%s: %s (%d)", msg, strerror(errno), errno);
#else
char munit_error_str[MUNIT_STRERROR_LEN];
munit_error_str[0] = '\0';
# if !defined(_WIN32)
strerror_r(errno, munit_error_str, MUNIT_STRERROR_LEN);
# else
strerror_s(munit_error_str, MUNIT_STRERROR_LEN, errno);
# endif
munit_logf_internal(level, fp, "%s: %s (%d)", msg, munit_error_str, errno);
#endif
}
/*** Memory allocation ***/
void *munit_malloc_ex(const char *filename, int line, size_t size) {
void *ptr;
if (size == 0)
return NULL;
ptr = calloc(1, size);
if (MUNIT_UNLIKELY(ptr == NULL)) {
munit_logf_ex(MUNIT_LOG_ERROR, filename, line,
"Failed to allocate %" MUNIT_SIZE_MODIFIER "u bytes.", size);
}
return ptr;
}
/*** Timer code ***/
#if defined(MUNIT_ENABLE_TIMING)
# define psnip_uint64_t munit_uint64_t
# define psnip_uint32_t munit_uint32_t
/* Code copied from portable-snippets
* <https://github.com/nemequ/portable-snippets/>. If you need to
* change something, please do it there so we can keep the code in
* sync. */
/* Clocks (v1)
* Portable Snippets - https://gitub.com/nemequ/portable-snippets
* Created by Evan Nemerson <evan@nemerson.com>
*
* To the extent possible under law, the authors have waived all
* copyright and related or neighboring rights to this code. For
* details, see the Creative Commons Zero 1.0 Universal license at
* https://creativecommons.org/publicdomain/zero/1.0/
*/
# if !defined(PSNIP_CLOCK_H)
# define PSNIP_CLOCK_H
# if !defined(psnip_uint64_t)
# include "../exact-int/exact-int.h"
# endif
# if !defined(PSNIP_CLOCK_STATIC_INLINE)
# if defined(__GNUC__)
# define PSNIP_CLOCK__COMPILER_ATTRIBUTES __attribute__((__unused__))
# else
# define PSNIP_CLOCK__COMPILER_ATTRIBUTES
# endif
# define PSNIP_CLOCK__FUNCTION PSNIP_CLOCK__COMPILER_ATTRIBUTES static
# endif
enum PsnipClockType {
/* This clock provides the current time, in units since 1970-01-01
* 00:00:00 UTC not including leap seconds. In other words, UNIX
* time. Keep in mind that this clock doesn't account for leap
* seconds, and can go backwards (think NTP adjustments). */
PSNIP_CLOCK_TYPE_WALL = 1,
/* The CPU time is a clock which increases only when the current
* process is active (i.e., it doesn't increment while blocking on
* I/O). */
PSNIP_CLOCK_TYPE_CPU = 2,
/* Monotonic time is always running (unlike CPU time), but it only
ever moves forward unless you reboot the system. Things like NTP
adjustments have no effect on this clock. */
PSNIP_CLOCK_TYPE_MONOTONIC = 3
};
struct PsnipClockTimespec {
psnip_uint64_t seconds;
psnip_uint64_t nanoseconds;
};
/* Methods we support: */
# define PSNIP_CLOCK_METHOD_CLOCK_GETTIME 1
# define PSNIP_CLOCK_METHOD_TIME 2
# define PSNIP_CLOCK_METHOD_GETTIMEOFDAY 3
# define PSNIP_CLOCK_METHOD_QUERYPERFORMANCECOUNTER 4
# define PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME 5
# define PSNIP_CLOCK_METHOD_CLOCK 6
# define PSNIP_CLOCK_METHOD_GETPROCESSTIMES 7
# define PSNIP_CLOCK_METHOD_GETRUSAGE 8
# define PSNIP_CLOCK_METHOD_GETSYSTEMTIMEPRECISEASFILETIME 9
# define PSNIP_CLOCK_METHOD_GETTICKCOUNT64 10
# include <assert.h>
# if defined(HEDLEY_UNREACHABLE)
# define PSNIP_CLOCK_UNREACHABLE() HEDLEY_UNREACHABLE()
# else
# define PSNIP_CLOCK_UNREACHABLE() assert(0)
# endif
/* Choose an implementation */
/* #undef PSNIP_CLOCK_WALL_METHOD */
/* #undef PSNIP_CLOCK_CPU_METHOD */
/* #undef PSNIP_CLOCK_MONOTONIC_METHOD */
/* We want to be able to detect the libc implementation, so we include
<limits.h> (<features.h> isn't available everywhere). */
# if defined(__unix__) || defined(__unix) || defined(__linux__)
# include <limits.h>
# include <unistd.h>
# endif
# if defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)
/* These are known to work without librt. If you know of others
* please let us know so we can add them. */
# if (defined(__GLIBC__) && \
(__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 17))) || \
(defined(__FreeBSD__))
# define PSNIP_CLOCK_HAVE_CLOCK_GETTIME
# elif !defined(PSNIP_CLOCK_NO_LIBRT)
# define PSNIP_CLOCK_HAVE_CLOCK_GETTIME
# endif
# endif
# if defined(_WIN32)
# if !defined(PSNIP_CLOCK_CPU_METHOD)
# define PSNIP_CLOCK_CPU_METHOD PSNIP_CLOCK_METHOD_GETPROCESSTIMES
# endif
# if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
# define PSNIP_CLOCK_MONOTONIC_METHOD \
PSNIP_CLOCK_METHOD_QUERYPERFORMANCECOUNTER
# endif
# endif
# if defined(__MACH__) && !defined(__gnu_hurd__)
# if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
# define PSNIP_CLOCK_MONOTONIC_METHOD \
PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME
# endif
# endif
# if defined(PSNIP_CLOCK_HAVE_CLOCK_GETTIME)
# include <time.h>
# if !defined(PSNIP_CLOCK_WALL_METHOD)
# if defined(CLOCK_REALTIME_PRECISE)
# define PSNIP_CLOCK_WALL_METHOD PSNIP_CLOCK_METHOD_CLOCK_GETTIME
# define PSNIP_CLOCK_CLOCK_GETTIME_WALL CLOCK_REALTIME_PRECISE
# elif !defined(__sun)
# define PSNIP_CLOCK_WALL_METHOD PSNIP_CLOCK_METHOD_CLOCK_GETTIME
# define PSNIP_CLOCK_CLOCK_GETTIME_WALL CLOCK_REALTIME
# endif
# endif
# if !defined(PSNIP_CLOCK_CPU_METHOD)
# if defined(_POSIX_CPUTIME) || defined(CLOCK_PROCESS_CPUTIME_ID)
# define PSNIP_CLOCK_CPU_METHOD PSNIP_CLOCK_METHOD_CLOCK_GETTIME
# define PSNIP_CLOCK_CLOCK_GETTIME_CPU CLOCK_PROCESS_CPUTIME_ID
# elif defined(CLOCK_VIRTUAL)
# define PSNIP_CLOCK_CPU_METHOD PSNIP_CLOCK_METHOD_CLOCK_GETTIME
# define PSNIP_CLOCK_CLOCK_GETTIME_CPU CLOCK_VIRTUAL
# endif
# endif
# if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
# if defined(CLOCK_MONOTONIC_RAW)
# define PSNIP_CLOCK_MONOTONIC_METHOD PSNIP_CLOCK_METHOD_CLOCK_GETTIME
# define PSNIP_CLOCK_CLOCK_GETTIME_MONOTONIC CLOCK_MONOTONIC
# elif defined(CLOCK_MONOTONIC_PRECISE)
# define PSNIP_CLOCK_MONOTONIC_METHOD PSNIP_CLOCK_METHOD_CLOCK_GETTIME
# define PSNIP_CLOCK_CLOCK_GETTIME_MONOTONIC CLOCK_MONOTONIC_PRECISE
# elif defined(_POSIX_MONOTONIC_CLOCK) || defined(CLOCK_MONOTONIC)
# define PSNIP_CLOCK_MONOTONIC_METHOD PSNIP_CLOCK_METHOD_CLOCK_GETTIME
# define PSNIP_CLOCK_CLOCK_GETTIME_MONOTONIC CLOCK_MONOTONIC
# endif
# endif
# endif
# if defined(_POSIX_VERSION) && (_POSIX_VERSION >= 200112L)
# if !defined(PSNIP_CLOCK_WALL_METHOD)
# define PSNIP_CLOCK_WALL_METHOD PSNIP_CLOCK_METHOD_GETTIMEOFDAY
# endif
# endif
# if !defined(PSNIP_CLOCK_WALL_METHOD)
# define PSNIP_CLOCK_WALL_METHOD PSNIP_CLOCK_METHOD_TIME
# endif
# if !defined(PSNIP_CLOCK_CPU_METHOD)
# define PSNIP_CLOCK_CPU_METHOD PSNIP_CLOCK_METHOD_CLOCK
# endif
/* Primarily here for testing. */
# if !defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
defined(PSNIP_CLOCK_REQUIRE_MONOTONIC)
# error No monotonic clock found.
# endif
/* Implementations */
# if (defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
(defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_CLOCK)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK)) || \
(defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_TIME)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_TIME)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_TIME))
# include <time.h>
# endif
# if (defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETTIMEOFDAY)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_GETTIMEOFDAY)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETTIMEOFDAY))
# include <sys/time.h>
# endif
# if (defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETPROCESSTIMES)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_GETPROCESSTIMES)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == \
PSNIP_CLOCK_METHOD_GETPROCESSTIMES)) || \
(defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64))
# include <windows.h>
# endif
# if (defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETRUSAGE)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_GETRUSAGE)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETRUSAGE))
# include <sys/time.h>
# include <sys/resource.h>
# endif
# if (defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == \
PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME))
# include <CoreServices/CoreServices.h>
# include <mach/mach.h>
# include <mach/mach_time.h>
# endif
/*** Implementations ***/
# define PSNIP_CLOCK_NSEC_PER_SEC ((psnip_uint32_t)(1000000000ULL))
# if (defined(PSNIP_CLOCK_CPU_METHOD) && \
(PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && \
(PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
(PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME))
PSNIP_CLOCK__FUNCTION psnip_uint32_t
psnip_clock__clock_getres(clockid_t clk_id) {
struct timespec res;
int r;
r = clock_getres(clk_id, &res);
if (r != 0)
return 0;
return (psnip_uint32_t)(PSNIP_CLOCK_NSEC_PER_SEC /
(psnip_uint64_t)res.tv_nsec);
}
PSNIP_CLOCK__FUNCTION int
psnip_clock__clock_gettime(clockid_t clk_id, struct PsnipClockTimespec *res) {
struct timespec ts;
if (clock_gettime(clk_id, &ts) != 0)
return -10;
res->seconds = (psnip_uint64_t)(ts.tv_sec);
res->nanoseconds = (psnip_uint64_t)(ts.tv_nsec);
return 0;
}
# endif
PSNIP_CLOCK__FUNCTION psnip_uint32_t psnip_clock_wall_get_precision(void) {
# if !defined(PSNIP_CLOCK_WALL_METHOD)
return 0;
# elif defined(PSNIP_CLOCK_WALL_METHOD) && \
PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME
return psnip_clock__clock_getres(PSNIP_CLOCK_CLOCK_GETTIME_WALL);
# elif defined(PSNIP_CLOCK_WALL_METHOD) && \
PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_GETTIMEOFDAY
return 1000000;
# elif defined(PSNIP_CLOCK_WALL_METHOD) && \
PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_TIME
return 1;
# else
return 0;
# endif
}
PSNIP_CLOCK__FUNCTION int
psnip_clock_wall_get_time(struct PsnipClockTimespec *res) {
# if !defined(PSNIP_CLOCK_WALL_METHOD)
(void)res;
return -2;
# elif defined(PSNIP_CLOCK_WALL_METHOD) && \
PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME
return psnip_clock__clock_gettime(PSNIP_CLOCK_CLOCK_GETTIME_WALL, res);
# elif defined(PSNIP_CLOCK_WALL_METHOD) && \
PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_TIME
res->seconds = time(NULL);
res->nanoseconds = 0;
# elif defined(PSNIP_CLOCK_WALL_METHOD) && \
PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_GETTIMEOFDAY
struct timeval tv;
if (gettimeofday(&tv, NULL) != 0)
return -6;
res->seconds = (psnip_uint64_t)tv.tv_sec;
res->nanoseconds = (psnip_uint64_t)tv.tv_usec * 1000;
# else
(void)res;
return -2;
# endif
return 0;
}
PSNIP_CLOCK__FUNCTION psnip_uint32_t psnip_clock_cpu_get_precision(void) {
# if !defined(PSNIP_CLOCK_CPU_METHOD)
return 0;
# elif defined(PSNIP_CLOCK_CPU_METHOD) && \
PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME
return psnip_clock__clock_getres(PSNIP_CLOCK_CLOCK_GETTIME_CPU);
# elif defined(PSNIP_CLOCK_CPU_METHOD) && \
PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK
return CLOCKS_PER_SEC;
# elif defined(PSNIP_CLOCK_CPU_METHOD) && \
PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETPROCESSTIMES
return PSNIP_CLOCK_NSEC_PER_SEC / 100;
# else
return 0;
# endif
}
PSNIP_CLOCK__FUNCTION int
psnip_clock_cpu_get_time(struct PsnipClockTimespec *res) {
# if !defined(PSNIP_CLOCK_CPU_METHOD)
(void)res;
return -2;
# elif defined(PSNIP_CLOCK_CPU_METHOD) && \
PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME
return psnip_clock__clock_gettime(PSNIP_CLOCK_CLOCK_GETTIME_CPU, res);
# elif defined(PSNIP_CLOCK_CPU_METHOD) && \
PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK
clock_t t = clock();
if (t == ((clock_t)-1))
return -5;
res->seconds = t / CLOCKS_PER_SEC;
res->nanoseconds =
(t % CLOCKS_PER_SEC) * (PSNIP_CLOCK_NSEC_PER_SEC / CLOCKS_PER_SEC);
# elif defined(PSNIP_CLOCK_CPU_METHOD) && \
PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETPROCESSTIMES
FILETIME CreationTime, ExitTime, KernelTime, UserTime;
LARGE_INTEGER date, adjust;
if (!GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime,
&KernelTime, &UserTime))
return -7;
/* http://www.frenk.com/2009/12/convert-filetime-to-unix-timestamp/ */
date.HighPart = (LONG)UserTime.dwHighDateTime;
date.LowPart = UserTime.dwLowDateTime;
adjust.QuadPart = 11644473600000 * 10000;
date.QuadPart -= adjust.QuadPart;
res->seconds = (psnip_uint64_t)(date.QuadPart / 10000000);
res->nanoseconds = (psnip_uint64_t)(date.QuadPart % 10000000) *
(PSNIP_CLOCK_NSEC_PER_SEC / 100);
# elif PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETRUSAGE
struct rusage usage;
if (getrusage(RUSAGE_SELF, &usage) != 0)
return -8;
res->seconds = usage.ru_utime.tv_sec;
res->nanoseconds = tv.tv_usec * 1000;
# else
(void)res;
return -2;
# endif
return 0;
}
PSNIP_CLOCK__FUNCTION psnip_uint32_t psnip_clock_monotonic_get_precision(void) {
# if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
return 0;
# elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME
return psnip_clock__clock_getres(PSNIP_CLOCK_CLOCK_GETTIME_MONOTONIC);
# elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME
static mach_timebase_info_data_t tbi = {
0,
};
if (tbi.denom == 0)
mach_timebase_info(&tbi);
return (psnip_uint32_t)(tbi.numer / tbi.denom);
# elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64
return 1000;
# elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
PSNIP_CLOCK_MONOTONIC_METHOD == \
PSNIP_CLOCK_METHOD_QUERYPERFORMANCECOUNTER
LARGE_INTEGER Frequency;
QueryPerformanceFrequency(&Frequency);
return (psnip_uint32_t)((Frequency.QuadPart > PSNIP_CLOCK_NSEC_PER_SEC)
? PSNIP_CLOCK_NSEC_PER_SEC
: Frequency.QuadPart);
# else
return 0;
# endif
}
PSNIP_CLOCK__FUNCTION int
psnip_clock_monotonic_get_time(struct PsnipClockTimespec *res) {
# if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
(void)res;
return -2;
# elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME
return psnip_clock__clock_gettime(PSNIP_CLOCK_CLOCK_GETTIME_MONOTONIC, res);
# elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME
psnip_uint64_t nsec = mach_absolute_time();
static mach_timebase_info_data_t tbi = {
0,
};
if (tbi.denom == 0)
mach_timebase_info(&tbi);
nsec *= ((psnip_uint64_t)tbi.numer) / ((psnip_uint64_t)tbi.denom);
res->seconds = nsec / PSNIP_CLOCK_NSEC_PER_SEC;
res->nanoseconds = nsec % PSNIP_CLOCK_NSEC_PER_SEC;
# elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
PSNIP_CLOCK_MONOTONIC_METHOD == \
PSNIP_CLOCK_METHOD_QUERYPERFORMANCECOUNTER
LARGE_INTEGER t, f;
if (QueryPerformanceCounter(&t) == 0)
return -12;
QueryPerformanceFrequency(&f);
res->seconds = (psnip_uint64_t)(t.QuadPart / f.QuadPart);
res->nanoseconds = (psnip_uint64_t)(t.QuadPart % f.QuadPart);
if (f.QuadPart > PSNIP_CLOCK_NSEC_PER_SEC)
res->nanoseconds /= (psnip_uint64_t)f.QuadPart / PSNIP_CLOCK_NSEC_PER_SEC;
else
res->nanoseconds *= PSNIP_CLOCK_NSEC_PER_SEC / (psnip_uint64_t)f.QuadPart;
# elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && \
PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64
const ULONGLONG msec = GetTickCount64();
res->seconds = msec / 1000;
res->nanoseconds = sec % 1000;
# else
return -2;
# endif
return 0;
}
/* Returns the number of ticks per second for the specified clock.
* For example, a clock with millisecond precision would return 1000,
* and a clock with 1 second (such as the time() function) would
* return 1.
*
* If the requested clock isn't available, it will return 0.
* Hopefully this will be rare, but if it happens to you please let us
* know so we can work on finding a way to support your system.
*
* Note that different clocks on the same system often have a
* different precisions.
*/
PSNIP_CLOCK__FUNCTION psnip_uint32_t
psnip_clock_get_precision(enum PsnipClockType clock_type) {
switch (clock_type) {
case PSNIP_CLOCK_TYPE_MONOTONIC:
return psnip_clock_monotonic_get_precision();
case PSNIP_CLOCK_TYPE_CPU:
return psnip_clock_cpu_get_precision();
case PSNIP_CLOCK_TYPE_WALL:
return psnip_clock_wall_get_precision();
}
PSNIP_CLOCK_UNREACHABLE();
return 0;
}
/* Set the provided timespec to the requested time. Returns 0 on
* success, or a negative value on failure. */
PSNIP_CLOCK__FUNCTION int psnip_clock_get_time(enum PsnipClockType clock_type,
struct PsnipClockTimespec *res) {
assert(res != NULL);
switch (clock_type) {
case PSNIP_CLOCK_TYPE_MONOTONIC:
return psnip_clock_monotonic_get_time(res);
case PSNIP_CLOCK_TYPE_CPU:
return psnip_clock_cpu_get_time(res);
case PSNIP_CLOCK_TYPE_WALL:
return psnip_clock_wall_get_time(res);
}
return -1;
}
# endif /* !defined(PSNIP_CLOCK_H) */
static psnip_uint64_t munit_clock_get_elapsed(struct PsnipClockTimespec *start,
struct PsnipClockTimespec *end) {
psnip_uint64_t r = (end->seconds - start->seconds) * PSNIP_CLOCK_NSEC_PER_SEC;
if (end->nanoseconds < start->nanoseconds) {
return r - (start->nanoseconds - end->nanoseconds);
}
return r + (end->nanoseconds - start->nanoseconds);
}
#else
# include <time.h>
#endif /* defined(MUNIT_ENABLE_TIMING) */
/*** PRNG stuff ***/
/* This is (unless I screwed up, which is entirely possible) the
* version of PCG with 32-bit state. It was chosen because it has a
* small enough state that we should reliably be able to use CAS
* instead of requiring a lock for thread-safety.
*
* If I did screw up, I probably will not bother changing it unless
* there is a significant bias. It's really not important this be
* particularly strong, as long as it is fairly random it's much more
* important that it be reproducible, so bug reports have a better
* chance of being reproducible. */
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && \
!defined(__STDC_NO_ATOMICS__) && !defined(__EMSCRIPTEN__) && \
(!defined(__GNUC_MINOR__) || (__GNUC__ > 4) || \
(__GNUC__ == 4 && __GNUC_MINOR__ > 8))
# define HAVE_STDATOMIC
#elif defined(__clang__)
# if __has_extension(c_atomic)
# define HAVE_CLANG_ATOMICS
# endif
#endif
/* Workaround for http://llvm.org/bugs/show_bug.cgi?id=26911 */
#if defined(__clang__) && defined(_WIN32)
# undef HAVE_STDATOMIC
# if defined(__c2__)
# undef HAVE_CLANG_ATOMICS
# endif
#endif
#if defined(_OPENMP)
# define ATOMIC_UINT32_T uint32_t
#elif defined(HAVE_STDATOMIC)
# include <stdatomic.h>
# define ATOMIC_UINT32_T _Atomic uint32_t
#elif defined(HAVE_CLANG_ATOMICS)
# define ATOMIC_UINT32_T _Atomic uint32_t
#elif defined(_WIN32)
# define ATOMIC_UINT32_T volatile LONG
#else
# define ATOMIC_UINT32_T volatile uint32_t
#endif
static ATOMIC_UINT32_T munit_rand_state = 42;
#if defined(_OPENMP)
static inline void munit_atomic_store(ATOMIC_UINT32_T *dest,
ATOMIC_UINT32_T value) {
# pragma omp critical(munit_atomics)
*dest = value;
}
static inline uint32_t munit_atomic_load(ATOMIC_UINT32_T *src) {
int ret;
# pragma omp critical(munit_atomics)
ret = *src;
return ret;
}
static inline uint32_t munit_atomic_cas(ATOMIC_UINT32_T *dest,
ATOMIC_UINT32_T *expected,
ATOMIC_UINT32_T desired) {
munit_bool ret;
# pragma omp critical(munit_atomics)
{
if (*dest == *expected) {
*dest = desired;
ret = 1;
} else {
ret = 0;
}
}
return ret;
}
#elif defined(HAVE_STDATOMIC)
# define munit_atomic_store(dest, value) atomic_store(dest, value)
# define munit_atomic_load(src) atomic_load(src)
# define munit_atomic_cas(dest, expected, value) \
atomic_compare_exchange_weak(dest, expected, value)
#elif defined(HAVE_CLANG_ATOMICS)
# define munit_atomic_store(dest, value) \
__c11_atomic_store(dest, value, __ATOMIC_SEQ_CST)
# define munit_atomic_load(src) __c11_atomic_load(src, __ATOMIC_SEQ_CST)
# define munit_atomic_cas(dest, expected, value) \
__c11_atomic_compare_exchange_weak(dest, expected, value, \
__ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)
#elif defined(__GNUC__) && (__GNUC__ > 4) || \
(__GNUC__ == 4 && __GNUC_MINOR__ >= 7)
# define munit_atomic_store(dest, value) \
__atomic_store_n(dest, value, __ATOMIC_SEQ_CST)
# define munit_atomic_load(src) __atomic_load_n(src, __ATOMIC_SEQ_CST)
# define munit_atomic_cas(dest, expected, value) \
__atomic_compare_exchange_n(dest, expected, value, 1, __ATOMIC_SEQ_CST, \
__ATOMIC_SEQ_CST)
#elif defined(__GNUC__) && (__GNUC__ >= 4)
# define munit_atomic_store(dest, value) \
do { \
*(dest) = (value); \
} while (0)
# define munit_atomic_load(src) (*(src))
# define munit_atomic_cas(dest, expected, value) \
__sync_bool_compare_and_swap(dest, *expected, value)
#elif defined(_WIN32) /* Untested */
# define munit_atomic_store(dest, value) \
do { \
*(dest) = (value); \
} while (0)
# define munit_atomic_load(src) (*(src))
# define munit_atomic_cas(dest, expected, value) \
InterlockedCompareExchange((dest), (value), *(expected))
#else
# warning No atomic implementation, PRNG will not be thread-safe
# define munit_atomic_store(dest, value) \
do { \
*(dest) = (value); \
} while (0)
# define munit_atomic_load(src) (*(src))
static inline munit_bool munit_atomic_cas(ATOMIC_UINT32_T *dest,
ATOMIC_UINT32_T *expected,
ATOMIC_UINT32_T desired) {
if (*dest == *expected) {
*dest = desired;
return 1;
} else {
return 0;
}
}
#endif
#define MUNIT_PRNG_MULTIPLIER (747796405U)
#define MUNIT_PRNG_INCREMENT (1729U)
static munit_uint32_t munit_rand_next_state(munit_uint32_t state) {
return state * MUNIT_PRNG_MULTIPLIER + MUNIT_PRNG_INCREMENT;
}
static munit_uint32_t munit_rand_from_state(munit_uint32_t state) {
munit_uint32_t res = ((state >> ((state >> 28) + 4)) ^ state) * (277803737U);
res ^= res >> 22;
return res;
}
void munit_rand_seed(munit_uint32_t seed) {
munit_uint32_t state = munit_rand_next_state(seed + MUNIT_PRNG_INCREMENT);
munit_atomic_store(&munit_rand_state, state);
}
static munit_uint32_t munit_rand_generate_seed(void) {
munit_uint32_t seed, state;
#if defined(MUNIT_ENABLE_TIMING)
struct PsnipClockTimespec wc = {
0,
};
psnip_clock_get_time(PSNIP_CLOCK_TYPE_WALL, &wc);
seed = (munit_uint32_t)wc.nanoseconds;
#else
seed = (munit_uint32_t)time(NULL);
#endif
state = munit_rand_next_state(seed + MUNIT_PRNG_INCREMENT);
return munit_rand_from_state(state);
}
static munit_uint32_t munit_rand_state_uint32(munit_uint32_t *state) {
const munit_uint32_t old = *state;
*state = munit_rand_next_state(old);
return munit_rand_from_state(old);
}
munit_uint32_t munit_rand_uint32(void) {
munit_uint32_t old, state;