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7032982896
- asyn-thrdd.c: scope an include. - apply more clang-format suggestions. - tidy-up PP guard comments. - delete empty line from the top of headers. - add empty line after `curl_setup.h` include where missing. - fix indent. - CODE_STYLE.md: add `strcpy`. Follow-up to8636ad55df#20088 - lib1901.c: drop unnecessary line. Follow-up to436e67f65b#20076 Closes #20070
302 lines
8.4 KiB
C
302 lines
8.4 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "timeval.h"
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#ifdef _WIN32
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#include "version_win32.h"
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#include "../system_win32.h"
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LARGE_INTEGER Curl_freq;
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bool Curl_isVistaOrGreater;
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/* For tool or tests, we must initialize before calling curlx_now().
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Providing this function here is wrong. */
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void curlx_now_init(void)
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{
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if(curlx_verify_windows_version(6, 0, 0, PLATFORM_WINNT,
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VERSION_GREATER_THAN_EQUAL))
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Curl_isVistaOrGreater = true;
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else
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Curl_isVistaOrGreater = false;
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QueryPerformanceFrequency(&Curl_freq);
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}
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/* In case of bug fix this function has a counterpart in tool_util.c */
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void curlx_pnow(struct curltime *pnow)
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{
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bool isVistaOrGreater;
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isVistaOrGreater = Curl_isVistaOrGreater;
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if(isVistaOrGreater) { /* QPC timer might have issues pre-Vista */
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LARGE_INTEGER count;
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LARGE_INTEGER freq;
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freq = Curl_freq;
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DEBUGASSERT(freq.QuadPart);
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QueryPerformanceCounter(&count);
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pnow->tv_sec = (time_t)(count.QuadPart / freq.QuadPart);
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pnow->tv_usec = (int)((count.QuadPart % freq.QuadPart) * 1000000 /
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freq.QuadPart);
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}
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else {
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/* Disable /analyze warning that GetTickCount64 is preferred */
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable:28159)
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#endif
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DWORD milliseconds = GetTickCount();
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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pnow->tv_sec = (time_t)(milliseconds / 1000);
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pnow->tv_usec = (int)((milliseconds % 1000) * 1000);
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}
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}
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#elif defined(HAVE_CLOCK_GETTIME_MONOTONIC) || \
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defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
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void curlx_pnow(struct curltime *pnow)
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{
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/*
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** clock_gettime() is granted to be increased monotonically when the
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** monotonic clock is queried. Time starting point is unspecified, it
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** could be the system start-up time, the Epoch, or something else,
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** in any case the time starting point does not change once that the
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** system has started up.
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*/
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struct timespec tsnow;
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/*
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** clock_gettime() may be defined by Apple's SDK as weak symbol thus
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** code compiles but fails during runtime if clock_gettime() is
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** called on unsupported OS version.
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*/
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#if defined(__APPLE__) && defined(HAVE_BUILTIN_AVAILABLE) && \
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(HAVE_BUILTIN_AVAILABLE == 1)
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bool have_clock_gettime = FALSE;
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if(__builtin_available(macOS 10.12, iOS 10, tvOS 10, watchOS 3, *))
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have_clock_gettime = TRUE;
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#endif
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#ifdef HAVE_CLOCK_GETTIME_MONOTONIC_RAW
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if(
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#if defined(__APPLE__) && defined(HAVE_BUILTIN_AVAILABLE) && \
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(HAVE_BUILTIN_AVAILABLE == 1)
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have_clock_gettime &&
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#endif
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(clock_gettime(CLOCK_MONOTONIC_RAW, &tsnow) == 0)) {
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pnow->tv_sec = tsnow.tv_sec;
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pnow->tv_usec = (int)(tsnow.tv_nsec / 1000);
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}
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else
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#endif
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if(
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#if defined(__APPLE__) && defined(HAVE_BUILTIN_AVAILABLE) && \
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(HAVE_BUILTIN_AVAILABLE == 1)
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have_clock_gettime &&
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#endif
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(clock_gettime(CLOCK_MONOTONIC, &tsnow) == 0)) {
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pnow->tv_sec = tsnow.tv_sec;
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pnow->tv_usec = (int)(tsnow.tv_nsec / 1000);
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}
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/*
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** Even when the configure process has truly detected monotonic clock
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** availability, it might happen that it is not actually available at
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** runtime. When this occurs simply fallback to other time source.
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*/
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#ifdef HAVE_GETTIMEOFDAY
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else {
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struct timeval now;
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(void)gettimeofday(&now, NULL);
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pnow->tv_sec = now.tv_sec;
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pnow->tv_usec = (int)now.tv_usec;
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}
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#else
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else {
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pnow->tv_sec = time(NULL);
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pnow->tv_usec = 0;
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}
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#endif
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}
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#elif defined(HAVE_MACH_ABSOLUTE_TIME)
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#include <stdint.h>
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#include <mach/mach_time.h>
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void curlx_pnow(struct curltime *pnow)
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{
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/*
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** Monotonic timer on macOS is provided by mach_absolute_time(), which
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** returns time in Mach "absolute time units," which are platform-dependent.
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** To convert to nanoseconds, one must use conversion factors specified by
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** mach_timebase_info().
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*/
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static mach_timebase_info_data_t timebase;
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uint64_t usecs;
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if(timebase.denom == 0)
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(void)mach_timebase_info(&timebase);
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usecs = mach_absolute_time();
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usecs *= timebase.numer; /* spellchecker:disable-line */
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usecs /= timebase.denom;
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usecs /= 1000;
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pnow->tv_sec = usecs / 1000000;
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pnow->tv_usec = (int)(usecs % 1000000);
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}
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#elif defined(HAVE_GETTIMEOFDAY)
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void curlx_pnow(struct curltime *pnow)
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{
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/*
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** gettimeofday() is not granted to be increased monotonically, due to
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** clock drifting and external source time synchronization it can jump
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** forward or backward in time.
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*/
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struct timeval now;
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(void)gettimeofday(&now, NULL);
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pnow->tv_sec = now.tv_sec;
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pnow->tv_usec = (int)now.tv_usec;
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}
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#else
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void curlx_pnow(struct curltime *pnow)
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{
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/*
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** time() returns the value of time in seconds since the Epoch.
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*/
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pnow->tv_sec = time(NULL);
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pnow->tv_usec = 0;
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}
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#endif
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struct curltime curlx_now(void)
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{
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struct curltime now;
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curlx_pnow(&now);
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return now;
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}
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/*
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* Returns: time difference in number of milliseconds. For too large diffs it
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* returns max value.
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*
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* @unittest: 1323
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*/
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timediff_t curlx_ptimediff_ms(const struct curltime *newer,
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const struct curltime *older)
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{
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timediff_t diff = (timediff_t)newer->tv_sec - older->tv_sec;
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if(diff >= (TIMEDIFF_T_MAX / 1000))
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return TIMEDIFF_T_MAX;
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else if(diff <= (TIMEDIFF_T_MIN / 1000))
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return TIMEDIFF_T_MIN;
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return diff * 1000 + (newer->tv_usec - older->tv_usec) / 1000;
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}
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timediff_t curlx_timediff_ms(struct curltime newer, struct curltime older)
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{
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return curlx_ptimediff_ms(&newer, &older);
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}
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/*
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* Returns: time difference in number of milliseconds, rounded up.
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* For too large diffs it returns max value.
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*/
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timediff_t curlx_timediff_ceil_ms(struct curltime newer,
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struct curltime older)
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{
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timediff_t diff = (timediff_t)newer.tv_sec - older.tv_sec;
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if(diff >= (TIMEDIFF_T_MAX / 1000))
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return TIMEDIFF_T_MAX;
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else if(diff <= (TIMEDIFF_T_MIN / 1000))
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return TIMEDIFF_T_MIN;
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return diff * 1000 + (newer.tv_usec - older.tv_usec + 999) / 1000;
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}
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/*
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* Returns: time difference in number of microseconds. For too large diffs it
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* returns max value.
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*/
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timediff_t curlx_ptimediff_us(const struct curltime *newer,
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const struct curltime *older)
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{
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timediff_t diff = (timediff_t)newer->tv_sec - older->tv_sec;
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if(diff >= (TIMEDIFF_T_MAX / 1000000))
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return TIMEDIFF_T_MAX;
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else if(diff <= (TIMEDIFF_T_MIN / 1000000))
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return TIMEDIFF_T_MIN;
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return diff * 1000000 + newer->tv_usec - older->tv_usec;
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}
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timediff_t curlx_timediff_us(struct curltime newer, struct curltime older)
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{
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return curlx_ptimediff_us(&newer, &older);
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}
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#if defined(__MINGW32__) && (__MINGW64_VERSION_MAJOR <= 3)
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#include <sec_api/time_s.h> /* for _gmtime32_s(), _gmtime64_s() */
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#ifdef _USE_32BIT_TIME_T
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#define gmtime_s _gmtime32_s
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#else
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#define gmtime_s _gmtime64_s
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#endif
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#endif
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/*
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* curlx_gmtime() is a gmtime() replacement for portability. Do not use
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* the gmtime_s(), gmtime_r() or gmtime() functions anywhere else but here.
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*/
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CURLcode curlx_gmtime(time_t intime, struct tm *store)
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{
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#ifdef _WIN32
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if(gmtime_s(store, &intime)) /* thread-safe */
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return CURLE_BAD_FUNCTION_ARGUMENT;
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#elif defined(HAVE_GMTIME_R)
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const struct tm *tm;
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tm = gmtime_r(&intime, store); /* thread-safe */
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if(!tm)
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return CURLE_BAD_FUNCTION_ARGUMENT;
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#else
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const struct tm *tm;
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/* !checksrc! disable BANNEDFUNC 1 */
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tm = gmtime(&intime); /* not thread-safe */
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if(tm)
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*store = *tm; /* copy the pointed struct to the local copy */
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else
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return CURLE_BAD_FUNCTION_ARGUMENT;
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#endif
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return CURLE_OK;
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}
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