From 5e9b32b439627068a0292370fe595220dbfc95a0 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Tue, 26 Sep 1995 19:27:15 +0000
Subject: posix support initially added

---
 cpukit/posix/src/time.c | 192 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 192 insertions(+)
 create mode 100644 cpukit/posix/src/time.c

(limited to 'cpukit/posix/src/time.c')

diff --git a/cpukit/posix/src/time.c b/cpukit/posix/src/time.c
new file mode 100644
index 0000000000..fb99848c67
--- /dev/null
+++ b/cpukit/posix/src/time.c
@@ -0,0 +1,192 @@
+/* time.c
+ *
+ */
+
+#include <time.h>
+#include <rtems/score/tod.h>
+
+/*
+ *  Seconds from January 1, 1970 to January 1, 1988.  Used to account for
+ *  differences between POSIX API and RTEMS core.
+ */
+
+#define POSIX_TIME_SECONDS_1970_THROUGH_1988 \
+  (((1987 - 1970 + 1)  * TOD_SECONDS_PER_NON_LEAP_YEAR) + \
+  (4 * TOD_SECONDS_PER_DAY))
+
+/*
+ *  4.5.1 Get System Time, P1003.1b-1993, p. 91
+ */
+
+time_t time(
+  time_t   *tloc
+)
+{
+  time_t  seconds_since_epoch;
+
+  if ( !_TOD_Is_set() ) {
+    /* XXX set errno */
+    return -1;
+  }
+
+  /*
+   *  Internally the RTEMS epoch is 1988.  This must be taken into account.
+   */
+
+  seconds_since_epoch = _TOD_Seconds_since_epoch;
+     
+  seconds_since_epoch += POSIX_TIME_SECONDS_1970_THROUGH_1988;
+
+  if ( tloc )
+    *tloc = seconds_since_epoch;
+
+  return seconds_since_epoch;
+}
+
+#ifdef NOT_IMPLEMENTED_YET
+/*
+ *  14.2.1 Clocks, P1003.1b-1993, p. 263
+ */
+
+int clock_settime(
+  clockid_t              clock_id,
+  const struct timespec *tp
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  14.2.1 Clocks, P1003.1b-1993, p. 263
+ */
+
+int clock_gettime(
+  clockid_t        clock_id,
+  struct timespec *tp
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  14.2.1 Clocks, P1003.1b-1993, p. 263
+ */
+
+int clock_getres(
+  clockid_t        clock_id,
+  struct timespec *res
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  14.2.2 Create a Per-Process Timer, P1003.1b-1993, p. 264
+ */
+
+int timer_create(
+  clockid_t        clock_id,
+  struct sigevent *evp,
+  timer_t         *timerid
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  14.2.3 Delete a Per_process Timer, P1003.1b-1993, p. 266
+ */
+
+int timer_delete(
+  timer_t timerid
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  14.2.4 Per-Process Timers, P1003.1b-1993, p. 267
+ */
+
+int timer_settime(
+  timer_t                  timerid,
+  int                      flags,
+  const struct itimerspec *value,
+  struct itimerspec       *ovalue
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  14.2.4 Per-Process Timers, P1003.1b-1993, p. 267
+ */
+
+int timer_gettime(
+  timer_t            timerid,
+  struct itimerspec *value
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  14.2.4 Per-Process Timers, P1003.1b-1993, p. 267
+ */
+
+int timer_getoverrun(
+  timer_t   timerid
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  14.2.5 High Resolution Sleep, P1003.1b-1993, p. 269
+ */
+
+int nanosleep(
+  const struct timespec  *rqtp,
+  struct timespec        *rmtp
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  20.1.3 Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55
+ */
+
+int clock_getcpuclockid(
+  pid_t      pid,
+  clockid_t *clock_id
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  20.1.5 CPU-time Clock Attribute Access, P1003.4b/D8, p. 58
+ */
+
+int clock_setenable_attr(
+  clockid_t    clock_id,
+  int          attr
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+/*
+ *  20.1.5 CPU-time Clock Attribute Access, P1003.4b/D8, p. 58
+ */
+
+int clock_getenable_attr(
+  clockid_t    clock_id,
+  int         *attr
+)
+{
+  return POSIX_NOT_IMPLEMENTED();
+}
+
+#endif
-- 
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