diff options
Diffstat (limited to 'StdLib/LibC/Time/TimeEfi.c')
| -rw-r--r-- | StdLib/LibC/Time/TimeEfi.c | 72 |
1 files changed, 68 insertions, 4 deletions
diff --git a/StdLib/LibC/Time/TimeEfi.c b/StdLib/LibC/Time/TimeEfi.c index 8c033fd7d9..50f2deec05 100644 --- a/StdLib/LibC/Time/TimeEfi.c +++ b/StdLib/LibC/Time/TimeEfi.c @@ -19,9 +19,16 @@ #include "tzfile.h"
#include <MainData.h>
-/* Convert an EFI_TIME structure into a C Standard tm structure. */
+/** Convert an EFI_TIME structure into a C Standard tm structure.
+
+ @param[in] ET Pointer to the EFI_TIME structure to convert.
+ @param[out] BT Pointer to the tm structure to receive the converted time.
+*/
void
-Efi2Tm( EFI_TIME *ET, struct tm *BT)
+Efi2Tm(
+ IN EFI_TIME *ET,
+ OUT struct tm *BT
+ )
{
// Convert EFI time to broken-down time.
BT->tm_year = ET->Year - TM_YEAR_BASE;
@@ -36,11 +43,68 @@ Efi2Tm( EFI_TIME *ET, struct tm *BT) BT->tm_Nano = ET->Nanosecond;
}
-/* Convert an EFI_TIME structure into a time_t value. */
+/** Convert an EFI_TIME structure into a time_t value.
+
+ @param[in] EfiBDtime Pointer to the EFI_TIME structure to convert.
+
+ @return The EFI_TIME converted into a time_t value.
+*/
time_t
-Efi2Time( EFI_TIME *EfiBDtime)
+Efi2Time(
+ IN EFI_TIME *EfiBDtime
+ )
{
Efi2Tm( EfiBDtime, &gMD->BDTime);
return mktime( &gMD->BDTime);
}
+
+/** Convert a C Standard tm structure into an EFI_TIME structure.
+
+ @param[in] BT Pointer to the tm structure to convert.
+ @param[out] ET Pointer to an EFI_TIME structure to receive the converted time.
+*/
+void
+Tm2Efi(
+ IN struct tm *BT,
+ OUT EFI_TIME *ET
+ )
+{
+ ET->Year = (UINT16)BT->tm_year + TM_YEAR_BASE;
+ ET->Month = (UINT8)BT->tm_mon + 1;
+ ET->Day = (UINT8)BT->tm_mday;
+ ET->Hour = (UINT8)BT->tm_hour;
+ ET->Minute = (UINT8)BT->tm_min;
+ ET->Second = (UINT8)BT->tm_sec;
+ ET->Nanosecond = (UINT32)BT->tm_Nano;
+ ET->TimeZone = (INT16)BT->tm_zoneoff;
+ ET->Daylight = (UINT8)BT->tm_daylight;
+}
+
+/** Convert a time_t value into an EFI_TIME structure.
+
+ @param[in] CalTime Calendar time as a time_t value.
+
+ @return Returns a newly malloced EFI_TIME structure containing
+ the converted calendar time.
+
+ @post It is the responsibility of the caller to free the
+ returned structure before the application exits.
+*/
+EFI_TIME*
+Time2Efi(
+ IN time_t CalTime
+ )
+{
+ struct tm *IT;
+ EFI_TIME *ET = NULL;
+
+ IT = gmtime(&CalTime);
+ if(IT != NULL) {
+ ET = malloc(sizeof(EFI_TIME));
+ if(ET != NULL) {
+ Tm2Efi(IT, ET);
+ }
+ }
+ return ET;
+}
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