| Message ID | 1363273553-29111-2-git-send-email-lilei@linux.vnet.ibm.com |
|---|---|
| State | New |
| Headers | show |
On Thu, Mar 14, 2013 at 11:05:52PM +0800, Lei Li wrote: > Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com> > --- > qga/commands-win32.c | 29 +++++++++++++++++++++++++++++ > 1 file changed, 29 insertions(+) > > diff --git a/qga/commands-win32.c b/qga/commands-win32.c > index 7e8ecb3..b395bd5 100644 > --- a/qga/commands-win32.c > +++ b/qga/commands-win32.c > @@ -22,6 +22,12 @@ > #define SHTDN_REASON_FLAG_PLANNED 0x80000000 > #endif > > +/* multiple of 100 nanoseconds elapsed between windows baseline > + (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ > +#define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ > + (365 * (1970 - 1601) + \ > + (1970 - 1601) / 4 - 3)) > + > static void acquire_privilege(const char *name, Error **err) > { > HANDLE token; > @@ -108,6 +114,29 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err) > } > } > > +int64_t qmp_guest_get_time(Error **errp) > +{ > + SYSTEMTIME ts = {0}; > + int64_t time_ns; > + FILETIME tf; > + > + GetSystemTime(&ts); > + if (ts.wYear < 1601 || ts.wYear > 30827) { > + error_setg(errp, "Failed to get time"); > + return -1; > + } > + > + if (!SystemTimeToFileTime(&ts, &tf)) { > + error_setg_errno(errp, errno, "Failed to convert system time"); I missed this is well, SystemTimeToFileTime() doesn't set errno, but if this is the only change needed I can fix this up in my tree. > + return -1; > + } > + > + time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime) > + - W32_FT_OFFSET) * 100; > + > + return time_ns; > +} > + > int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, Error **err) > { > error_set(err, QERR_UNSUPPORTED); > -- > 1.7.11.7 >
diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 7e8ecb3..b395bd5 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -22,6 +22,12 @@ #define SHTDN_REASON_FLAG_PLANNED 0x80000000 #endif +/* multiple of 100 nanoseconds elapsed between windows baseline + (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ +#define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ + (365 * (1970 - 1601) + \ + (1970 - 1601) / 4 - 3)) + static void acquire_privilege(const char *name, Error **err) { HANDLE token; @@ -108,6 +114,29 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err) } } +int64_t qmp_guest_get_time(Error **errp) +{ + SYSTEMTIME ts = {0}; + int64_t time_ns; + FILETIME tf; + + GetSystemTime(&ts); + if (ts.wYear < 1601 || ts.wYear > 30827) { + error_setg(errp, "Failed to get time"); + return -1; + } + + if (!SystemTimeToFileTime(&ts, &tf)) { + error_setg_errno(errp, errno, "Failed to convert system time"); + return -1; + } + + time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime) + - W32_FT_OFFSET) * 100; + + return time_ns; +} + int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, Error **err) { error_set(err, QERR_UNSUPPORTED);
Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com> --- qga/commands-win32.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)