Merge from emacs-24; up to 2013-01-03T02:37:57Z!rgm@gnu.org

[bpt/emacs.git] / nt / inc / sys / time.h

diff --git a/nt/inc/sys/time.h b/nt/inc/sys/time.h
index db54c90..f8fb022 100644 (file)
--- a/nt/inc/sys/time.h
+++ b/nt/inc/sys/time.h
@@ -2,22 +2,59 @@
 #define SYS_TIME_H_INCLUDED
 
 /*
- * sys/time.h doesn't exist on NT
+ * sys/time.h either doesn't exist on Windows, or doesn't necessarily
+ * have the below stuff.
  */
 
+/* The guards are for MinGW64, which defines these structs on its
+   system headers which are included by ms-w32.h.  */
+/* Allow inclusion of sys/time.h and winsock2.h in any order.  Needed
+   for running the configure test, which is only relevant to MinGW.  */
+#ifndef _TIMEVAL_DEFINED
+#define _TIMEVAL_DEFINED
 struct timeval
 {
   long         tv_sec;         /* seconds */
   long         tv_usec;        /* microseconds */
 };
+#define timerisset(tvp)  ((tvp)->tv_sec || (tvp)->tv_usec)
+#define timercmp(tvp, uvp, cmp) \
+        (((tvp)->tv_sec != (uvp)->tv_sec) ? \
+        ((tvp)->tv_sec cmp (uvp)->tv_sec) : \
+        ((tvp)->tv_usec cmp (uvp)->tv_usec))
+#define timerclear(tvp)  (tvp)->tv_sec = (tvp)->tv_usec = 0
+#endif /* _TIMEVAL_DEFINED */
 
+#ifndef _TIMEZONE_DEFINED
+#define _TIMEZONE_DEFINED
 struct timezone
 {
   int          tz_minuteswest; /* minutes west of Greenwich */
   int          tz_dsttime;     /* type of dst correction */
 };
+#endif
 
-void gettimeofday (struct timeval *, struct timezone *);
+
+/* This needs to be compatible with Posix signature, in order to pass
+   the configure test for the type of the second argument; see
+   m4/gettimeofday.m4.  We use '__restrict' here, rather than
+   'restrict', for the benefit of the old nt/configure.bat build,
+   which does not force the use of -std= switch to GCC, and that
+   causes compilation errors with 'restrict', which is a C99
+   extension.  */
+int gettimeofday (struct timeval *__restrict, struct timezone *__restrict);
+
+#define ITIMER_REAL      0
+#define ITIMER_PROF      1
+
+struct itimerval
+{
+  struct  timeval it_interval; /* timer interval */
+  struct  timeval it_value;    /* current value */
+};
+
+int getitimer (int, struct itimerval *);
+int setitimer (int, struct itimerval *, struct itimerval *);
 
 #endif /* SYS_TIME_H_INCLUDED */