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Win32: make FILETIME conversion functions public

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We will use them in the upcoming "FSCache" patches (to accelerate
sequential lstat() calls).

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Karsten Blees
2013-07-06 02:09:35 +02:00
committed by Johannes Schindelin
parent a11a8ac24a
commit 4619239ea1
2 changed files with 18 additions and 18 deletions
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18
compat/mingw.c
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@@ -788,24 +788,6 @@ int mingw_chmod(const char *filename, int mode)
return _wchmod(wfilename, mode); return _wchmod(wfilename, mode);
} }
/*
* The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
* Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
*/
static inline long long filetime_to_hnsec(const FILETIME *ft)
{
long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
/* Windows to Unix Epoch conversion */
return winTime - 116444736000000000LL;
}
static inline void filetime_to_timespec(const FILETIME *ft, struct timespec *ts)
{
long long hnsec = filetime_to_hnsec(ft);
ts->tv_sec = (time_t)(hnsec / 10000000);
ts->tv_nsec = (hnsec % 10000000) * 100;
}
/** /**
* Verifies that safe_create_leading_directories() would succeed. * Verifies that safe_create_leading_directories() would succeed.
*/ */

18
compat/mingw.h
View File

@@ -356,6 +356,17 @@ static inline int getrlimit(int resource, struct rlimit *rlp)
return 0; return 0;
} }
/*
* The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
* Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
*/
static inline long long filetime_to_hnsec(const FILETIME *ft)
{
long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
/* Windows to Unix Epoch conversion */
return winTime - 116444736000000000LL;
}
/* /*
* Use mingw specific stat()/lstat()/fstat() implementations on Windows, * Use mingw specific stat()/lstat()/fstat() implementations on Windows,
* including our own struct stat with 64 bit st_size and nanosecond-precision * including our own struct stat with 64 bit st_size and nanosecond-precision
@@ -372,6 +383,13 @@ struct timespec {
#endif #endif
#endif #endif
static inline void filetime_to_timespec(const FILETIME *ft, struct timespec *ts)
{
long long hnsec = filetime_to_hnsec(ft);
ts->tv_sec = (time_t)(hnsec / 10000000);
ts->tv_nsec = (hnsec % 10000000) * 100;
}
struct mingw_stat { struct mingw_stat {
_dev_t st_dev; _dev_t st_dev;
_ino_t st_ino; _ino_t st_ino;