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| author | Lasse Collin <lasse.collin@tukaani.org> | 2023-09-24 00:21:22 +0300 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2023-10-22 18:59:45 +0300 |
| commit | cdb4d91f2464b50c985ef7b9517314ea237ddda7 (patch) | |
| tree | be49c0c0ffdeddedab08466fe2d189857fd8f8a0 /src/xz/mytime.c | |
| parent | liblzma: Move is_clmul_supported() back to crc_common.h. (diff) | |
| download | xz-cdb4d91f2464b50c985ef7b9517314ea237ddda7.tar.xz | |
xz/Windows: Use GetTickCount64() with MinGW-w64 if using Vista threads.
Diffstat (limited to '')
| -rw-r--r-- | src/xz/mytime.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/xz/mytime.c b/src/xz/mytime.c index 4c13d377..ddfd5deb 100644 --- a/src/xz/mytime.c +++ b/src/xz/mytime.c @@ -12,7 +12,7 @@ #include "private.h" -#if defined(_MSC_VER) +#if defined(MYTHREAD_VISTA) || defined(_MSC_VER) // Nothing #elif defined(HAVE_CLOCK_GETTIME) # include <time.h> @@ -47,8 +47,16 @@ static uint64_t next_flush; static uint64_t mytime_now(void) { -#if defined(_MSC_VER) - // NOTE: This requires Windows Vista or later. +#if defined(MYTHREAD_VISTA) || defined(_MSC_VER) + // Since there is no SIGALRM on Windows, this function gets + // called frequently when the progress indicator is in use. + // Progress indicator doesn't need high-resolution time. + // GetTickCount64() has very low overhead but needs at least WinVista. + // + // MinGW-w64 provides the POSIX functions clock_gettime() and + // gettimeofday() in a manner that allow xz to run on older + // than WinVista. If the threading method needs WinVista anyway, + // there's no reason to avoid a WinVista API here either. return GetTickCount64(); #elif defined(HAVE_CLOCK_GETTIME) |