diff options
Diffstat (limited to 'util/compress/libdeflate/programs/test_util.c')
| -rw-r--r-- | util/compress/libdeflate/programs/test_util.c | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/util/compress/libdeflate/programs/test_util.c b/util/compress/libdeflate/programs/test_util.c deleted file mode 100644 index 20e7c217f..000000000 --- a/util/compress/libdeflate/programs/test_util.c +++ /dev/null @@ -1,243 +0,0 @@ -/* - * test_util.c - utility functions for test programs - * - * Copyright 2016 Eric Biggers - * - * 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. - */ - -#ifndef _WIN32 -/* for MAP_ANONYMOUS or MAP_ANON, which unfortunately aren't part of POSIX... */ -# undef _POSIX_C_SOURCE -# ifdef __APPLE__ -# define _DARWIN_C_SOURCE -# elif defined(__linux__) -# define _GNU_SOURCE -# endif -#endif - -#include "test_util.h" - -#include <fcntl.h> -#include <time.h> -#ifdef _WIN32 -# include <windows.h> -#else -# include <unistd.h> -# include <sys/mman.h> -# include <sys/time.h> -#endif - -#ifndef MAP_ANONYMOUS -# define MAP_ANONYMOUS MAP_ANON -#endif - -/* Abort with an error message */ -_noreturn void -assertion_failed(const char *expr, const char *file, int line) -{ - msg("Assertion failed: %s at %s:%d", expr, file, line); - abort(); -} - -void -begin_performance_test(void) -{ - /* Skip performance tests by default, since they can be flaky. */ - if (getenv("INCLUDE_PERF_TESTS") == NULL) - exit(0); -} - -static size_t -get_page_size(void) -{ -#ifdef _WIN32 - SYSTEM_INFO info; - - GetSystemInfo(&info); - return info.dwPageSize; -#else - return sysconf(_SC_PAGESIZE); -#endif -} - -/* Allocate a buffer with guard pages */ -void -alloc_guarded_buffer(size_t size, u8 **start_ret, u8 **end_ret) -{ - const size_t pagesize = get_page_size(); - const size_t nr_pages = (size + pagesize - 1) / pagesize; - u8 *base_addr; - u8 *start, *end; -#ifdef _WIN32 - DWORD oldProtect; -#endif - - *start_ret = NULL; - *end_ret = NULL; - -#ifdef _WIN32 - /* Allocate buffer and guard pages with no access. */ - base_addr = VirtualAlloc(NULL, (nr_pages + 2) * pagesize, - MEM_COMMIT | MEM_RESERVE, PAGE_NOACCESS); - if (!base_addr) { - msg("Unable to allocate memory (VirtualAlloc): Windows error %u", - (unsigned int)GetLastError()); - ASSERT(0); - } - start = base_addr + pagesize; - end = start + (nr_pages * pagesize); - - /* Grant read+write access to just the buffer. */ - if (!VirtualProtect(start, end - start, PAGE_READWRITE, &oldProtect)) { - msg("Unable to protect memory (VirtualProtect): Windows error %u", - (unsigned int)GetLastError()); - VirtualFree(base_addr, 0, MEM_RELEASE); - ASSERT(0); - } -#else - /* Allocate buffer and guard pages. */ - base_addr = mmap(NULL, (nr_pages + 2) * pagesize, PROT_READ|PROT_WRITE, - MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); - if (base_addr == (u8 *)MAP_FAILED) { - msg_errno("Unable to allocate memory (anonymous mmap)"); - ASSERT(0); - } - start = base_addr + pagesize; - end = start + (nr_pages * pagesize); - - /* Unmap the guard pages. */ - munmap(base_addr, pagesize); - munmap(end, pagesize); -#endif - *start_ret = start; - *end_ret = end; -} - -/* Free a buffer that was allocated by alloc_guarded_buffer() */ -void -free_guarded_buffer(u8 *start, u8 *end) -{ - if (!start) - return; -#ifdef _WIN32 - VirtualFree(start - get_page_size(), 0, MEM_RELEASE); -#else - munmap(start, end - start); -#endif -} - -/* - * Return the number of timer ticks that have elapsed since some unspecified - * point fixed at the start of program execution - */ -u64 -timer_ticks(void) -{ -#ifdef _WIN32 - LARGE_INTEGER count; - - QueryPerformanceCounter(&count); - return count.QuadPart; -#elif defined(HAVE_CLOCK_GETTIME) - struct timespec ts; - - clock_gettime(CLOCK_MONOTONIC, &ts); - return (1000000000 * (u64)ts.tv_sec) + ts.tv_nsec; -#else - struct timeval tv; - - gettimeofday(&tv, NULL); - return (1000000 * (u64)tv.tv_sec) + tv.tv_usec; -#endif -} - -/* - * Return the number of timer ticks per second - */ -static u64 -timer_frequency(void) -{ -#ifdef _WIN32 - LARGE_INTEGER freq; - - QueryPerformanceFrequency(&freq); - return freq.QuadPart; -#elif defined(HAVE_CLOCK_GETTIME) - return 1000000000; -#else - return 1000000; -#endif -} - -/* - * Convert a number of elapsed timer ticks to milliseconds - */ -u64 timer_ticks_to_ms(u64 ticks) -{ - return ticks * 1000 / timer_frequency(); -} - -/* - * Convert a byte count and a number of elapsed timer ticks to MB/s - */ -u64 timer_MB_per_s(u64 bytes, u64 ticks) -{ - return bytes * timer_frequency() / ticks / 1000000; -} - -/* - * Convert a byte count and a number of elapsed timer ticks to KB/s - */ -u64 timer_KB_per_s(u64 bytes, u64 ticks) -{ - return bytes * timer_frequency() / ticks / 1000; -} - -bool -put_bits(struct output_bitstream *os, machine_word_t bits, int num_bits) -{ - os->bitbuf |= bits << os->bitcount; - os->bitcount += num_bits; - while (os->bitcount >= 8) { - if (os->next == os->end) - return false; - *os->next++ = os->bitbuf; - os->bitcount -= 8; - os->bitbuf >>= 8; - } - return true; -} - -bool -flush_bits(struct output_bitstream *os) -{ - while (os->bitcount > 0) { - if (os->next == os->end) - return false; - *os->next++ = os->bitbuf; - os->bitcount -= 8; - os->bitbuf >>= 8; - } - os->bitcount = 0; - return true; -} |