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authorBrad King <brad.king@kitware.com>2014-11-10 15:43:10 (GMT)
committerCMake Topic Stage <kwrobot@kitware.com>2014-11-10 15:43:10 (GMT)
commit75f3a282b76baf615b17767d3768b781bfc463a7 (patch)
tree87dd923a0fa7e35491f7bec4b07e06966548a08a /Utilities/cmcurl/lib/timeval.c
parenta1f964ef6897343cd47f904b7cf7ad94b2b65e70 (diff)
parentc02c747b85cf7bba8e81a955722122e844688d4c (diff)
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Merge topic 'update-curl'
c02c747b Tests: Update expected CTestTestFailedSubmit output a427ed0c curl: Skip sanity check that triggers Clang warning 17b24d55 curl: Disable warnings to avoid changing 3rd party code 4c3bd340 curl: Skip check for inet_pton on Windows 54cb23c6 curl: Restore installation of OpenSSL DLLs c50f0327 curl: Restore CURL_CA_BUNDLE option 681693c9 curl: Restore CMake-specific zlib selection code 10d80b68 curl: Restore CMake-specific test and install code 19593042 curl: Configure build to work within CMake cf54aebb curl: Fix curl.h inclusion of curlbuild.h from CMake sources c17e3207 curl: Use arch-aware CHECK_TYPE_SIZE results 1f7cb7e2 curl: Fix detection of headers with dependencies b18c9044 curl: Drop inclusion of .rc file for static lib 860f0a2d curl: Select file APIs on Windows 5a3b55ed curl: Do not use 'dl' on HP-UX 59242702 curl: Simplify if() conditions on check result variables ...
Diffstat (limited to 'Utilities/cmcurl/lib/timeval.c')
-rw-r--r--Utilities/cmcurl/lib/timeval.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/timeval.c b/Utilities/cmcurl/lib/timeval.c
new file mode 100644
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+++ b/Utilities/cmcurl/lib/timeval.c
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+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include "timeval.h"
+
+#if defined(WIN32) && !defined(MSDOS)
+
+struct timeval curlx_tvnow(void)
+{
+ /*
+ ** GetTickCount() is available on _all_ Windows versions from W95 up
+ ** to nowadays. Returns milliseconds elapsed since last system boot,
+ ** increases monotonically and wraps once 49.7 days have elapsed.
+ */
+ struct timeval now;
+ DWORD milliseconds = GetTickCount();
+ now.tv_sec = milliseconds / 1000;
+ now.tv_usec = (milliseconds % 1000) * 1000;
+ return now;
+}
+
+#elif defined(HAVE_CLOCK_GETTIME_MONOTONIC)
+
+struct timeval curlx_tvnow(void)
+{
+ /*
+ ** clock_gettime() is granted to be increased monotonically when the
+ ** monotonic clock is queried. Time starting point is unspecified, it
+ ** could be the system start-up time, the Epoch, or something else,
+ ** in any case the time starting point does not change once that the
+ ** system has started up.
+ */
+ struct timeval now;
+ struct timespec tsnow;
+ if(0 == clock_gettime(CLOCK_MONOTONIC, &tsnow)) {
+ now.tv_sec = tsnow.tv_sec;
+ now.tv_usec = tsnow.tv_nsec / 1000;
+ }
+ /*
+ ** Even when the configure process has truly detected monotonic clock
+ ** availability, it might happen that it is not actually available at
+ ** run-time. When this occurs simply fallback to other time source.
+ */
+#ifdef HAVE_GETTIMEOFDAY
+ else
+ (void)gettimeofday(&now, NULL);
+#else
+ else {
+ now.tv_sec = (long)time(NULL);
+ now.tv_usec = 0;
+ }
+#endif
+ return now;
+}
+
+#elif defined(HAVE_GETTIMEOFDAY)
+
+struct timeval curlx_tvnow(void)
+{
+ /*
+ ** gettimeofday() is not granted to be increased monotonically, due to
+ ** clock drifting and external source time synchronization it can jump
+ ** forward or backward in time.
+ */
+ struct timeval now;
+ (void)gettimeofday(&now, NULL);
+ return now;
+}
+
+#else
+
+struct timeval curlx_tvnow(void)
+{
+ /*
+ ** time() returns the value of time in seconds since the Epoch.
+ */
+ struct timeval now;
+ now.tv_sec = (long)time(NULL);
+ now.tv_usec = 0;
+ return now;
+}
+
+#endif
+
+/*
+ * Make sure that the first argument is the more recent time, as otherwise
+ * we'll get a weird negative time-diff back...
+ *
+ * Returns: the time difference in number of milliseconds.
+ */
+long curlx_tvdiff(struct timeval newer, struct timeval older)
+{
+ return (newer.tv_sec-older.tv_sec)*1000+
+ (newer.tv_usec-older.tv_usec)/1000;
+}
+
+/*
+ * Same as curlx_tvdiff but with full usec resolution.
+ *
+ * Returns: the time difference in seconds with subsecond resolution.
+ */
+double curlx_tvdiff_secs(struct timeval newer, struct timeval older)
+{
+ if(newer.tv_sec != older.tv_sec)
+ return (double)(newer.tv_sec-older.tv_sec)+
+ (double)(newer.tv_usec-older.tv_usec)/1000000.0;
+ else
+ return (double)(newer.tv_usec-older.tv_usec)/1000000.0;
+}
+
+/* return the number of seconds in the given input timeval struct */
+long Curl_tvlong(struct timeval t1)
+{
+ return t1.tv_sec;
+}