diff options
author | Brad King <brad.king@kitware.com> | 2014-11-10 15:43:10 (GMT) |
---|---|---|
committer | CMake Topic Stage <kwrobot@kitware.com> | 2014-11-10 15:43:10 (GMT) |
commit | 75f3a282b76baf615b17767d3768b781bfc463a7 (patch) | |
tree | 87dd923a0fa7e35491f7bec4b07e06966548a08a /Utilities/cmcurl/lib/timeval.c | |
parent | a1f964ef6897343cd47f904b7cf7ad94b2b65e70 (diff) | |
parent | c02c747b85cf7bba8e81a955722122e844688d4c (diff) | |
download | CMake-75f3a282b76baf615b17767d3768b781bfc463a7.zip CMake-75f3a282b76baf615b17767d3768b781bfc463a7.tar.gz CMake-75f3a282b76baf615b17767d3768b781bfc463a7.tar.bz2 |
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.c | 134 |
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 index 0000000..2fd7201 --- /dev/null +++ b/Utilities/cmcurl/lib/timeval.c @@ -0,0 +1,134 @@ +/*************************************************************************** + * _ _ ____ _ + * 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; +} |