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Diffstat (limited to 'StdLib/Include/sys/time.h')
| -rw-r--r-- | StdLib/Include/sys/time.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/StdLib/Include/sys/time.h b/StdLib/Include/sys/time.h new file mode 100644 index 0000000000..1dd10b598f --- /dev/null +++ b/StdLib/Include/sys/time.h @@ -0,0 +1,183 @@ +/** @file
+ System-specific declarations and macros related to time.
+
+ Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that accompanies this distribution.
+ The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ Copyright (c) 1982, 1986, 1993
+ The Regents of the University of California. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. Neither the name of the University nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+
+ time.h 8.5 (Berkeley) 5/4/95
+ NetBSD: time.h,v 1.56 2006/06/18 21:09:24 uwe Exp
+ */
+#ifndef _SYS_TIME_H_
+#define _SYS_TIME_H_
+
+#include <Uefi.h>
+#include <sys/featuretest.h>
+#include <sys/types.h>
+
+/*
+ * Traditional *nix structure returned by gettimeofday(2) system call,
+ * and used in other calls.
+ */
+struct timeval {
+ LONG32 tv_sec; /* seconds */
+ LONG32 tv_usec; /* and microseconds */
+};
+
+/*
+ * Structure defined by POSIX.1b to be like a timeval.
+ * This works within EFI since the times really are time_t.
+ * Note that this is not exactly POSIX compliant since tv_nsec
+ * is a UINT32 instead of the compliant long.
+ */
+struct timespec {
+ time_t tv_sec; /* seconds */
+ UINT32 tv_nsec; /* and nanoseconds */
+};
+
+#define TIMEVAL_TO_TIMESPEC(tv, ts) do { \
+ (ts)->tv_sec = (tv)->tv_sec; \
+ (ts)->tv_nsec = (tv)->tv_usec * 1000; \
+} while (/*CONSTCOND*/0)
+#define TIMESPEC_TO_TIMEVAL(tv, ts) do { \
+ (tv)->tv_sec = (ts)->tv_sec; \
+ (tv)->tv_usec = (ts)->tv_nsec / 1000; \
+} while (/*CONSTCOND*/0)
+
+/* Operations on timevals. */
+#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
+#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
+#define timercmp(tvp, uvp, cmp) \
+ (((tvp)->tv_sec == (uvp)->tv_sec) ? \
+ ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
+ ((tvp)->tv_sec cmp (uvp)->tv_sec))
+#define timeradd(tvp, uvp, vvp) \
+ do { \
+ (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
+ (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
+ if ((vvp)->tv_usec >= 1000000) { \
+ (vvp)->tv_sec++; \
+ (vvp)->tv_usec -= 1000000; \
+ } \
+ } while (/* CONSTCOND */ 0)
+#define timersub(tvp, uvp, vvp) \
+ do { \
+ (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
+ (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
+ if ((vvp)->tv_usec < 0) { \
+ (vvp)->tv_sec--; \
+ (vvp)->tv_usec += 1000000; \
+ } \
+ } while (/* CONSTCOND */ 0)
+
+/* Operations on timespecs. */
+#define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0
+#define timespecisset(tsp) ((tsp)->tv_sec || (tsp)->tv_nsec)
+#define timespeccmp(tsp, usp, cmp) \
+ (((tsp)->tv_sec == (usp)->tv_sec) ? \
+ ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
+ ((tsp)->tv_sec cmp (usp)->tv_sec))
+#define timespecadd(tsp, usp, vsp) \
+ do { \
+ (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \
+ (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \
+ if ((vsp)->tv_nsec >= 1000000000L) { \
+ (vsp)->tv_sec++; \
+ (vsp)->tv_nsec -= 1000000000L; \
+ } \
+ } while (/* CONSTCOND */ 0)
+#define timespecsub(tsp, usp, vsp) \
+ do { \
+ (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
+ (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
+ if ((vsp)->tv_nsec < 0) { \
+ (vsp)->tv_sec--; \
+ (vsp)->tv_nsec += 1000000000L; \
+ } \
+ } while (/* CONSTCOND */ 0)
+
+/*
+ * Names of the interval timers, and structure
+ * defining a timer setting.
+ */
+#define ITIMER_REAL 0
+#define ITIMER_VIRTUAL 1
+#define ITIMER_PROF 2
+
+struct itimerval {
+ struct timeval it_interval; /* timer interval */
+ struct timeval it_value; /* current value */
+};
+
+/*
+ * Structure defined by POSIX.1b to be like a itimerval, but with
+ * timespecs. Used in the timer_*() system calls.
+ */
+struct itimerspec {
+ struct timespec it_interval;
+ struct timespec it_value;
+};
+
+#define CLOCK_REALTIME 0
+#define CLOCK_VIRTUAL 1
+#define CLOCK_PROF 2
+#define CLOCK_MONOTONIC 3
+
+#define TIMER_RELTIME 0x0 /* relative timer */
+#define TIMER_ABSTIME 0x1 /* absolute timer */
+
+#if 0
+ #if (_POSIX_C_SOURCE - 0) >= 200112L || \
+ (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
+ (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
+ #include <sys/select.h>
+ #endif
+#endif /* if 0 */
+
+#include <sys/EfiCdefs.h>
+#include <time.h>
+
+/* Functions useful for dealing with EFI */
+__BEGIN_DECLS
+
+/* Convert an EFI_TIME structure into a time_t value. */
+time_t Efi2Time( EFI_TIME *EfiBDtime);
+
+/* Convert an EFI_TIME structure into a C Standard tm structure. */
+void Efi2Tm( EFI_TIME *EfiBDtime, struct tm *NewTime);
+
+__END_DECLS
+
+#endif /* !_SYS_TIME_H_ */
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