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-rw-r--r--newlib/libc/time/time.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/newlib/libc/time/time.c b/newlib/libc/time/time.c
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+++ b/newlib/libc/time/time.c
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+/* FIXME: doc says "not avail" due to #if 0.
+ DELETE that line if inappropriate! */
+/*
+FUNCTION
+<<time>>---get current calendar time (as single number)
+
+INDEX
+ time
+
+ANSI_SYNOPSIS
+ #include <time.h>
+ time_t time(time_t *<[t]>);
+
+TRAD_SYNOPSIS
+ #include <time.h>
+ time_t time(<[t]>)
+ time_t *<[t]>;
+
+DESCRIPTION
+<<time>> looks up the best available representation of the current
+time and returns it, encoded as a <<time_t>>. It stores the same
+value at <[t]> unless the argument is <<NULL>>.
+
+RETURNS
+A <<-1>> result means the current time is not available; otherwise the
+result represents the current time.
+
+PORTABILITY
+ANSI C requires <<time>>.
+
+Supporting OS subroutine required: Some implementations require
+<<gettimeofday>>.
+*/
+
+#ifdef HAVE_GETTIMEOFDAY
+
+/* Most times we have a system call in newlib/libc/sys/.. to do this job */
+
+#include <_ansi.h>
+#include <reent.h>
+#include <sys/types.h>
+#include <sys/time.h>
+
+time_t
+_DEFUN (time, (t),
+ time_t * t)
+{
+ struct timeval now;
+
+ if (_gettimeofday_r (_REENT, &now, (struct timezone *) 0) >= 0)
+ {
+ if (t)
+ *t = now.tv_sec;
+ return now.tv_sec;
+ }
+ return -1;
+}
+
+#endif