X-Git-Url: https://git.hcoop.net/bpt/guile.git/blobdiff_plain/110ef00ba1dfae4461afdd189fed4dfec05ee137..4247d8e34e410032a8a1f1fe036201c2be431090:/libguile/scmsigs.c

diff --git a/libguile/scmsigs.c b/libguile/scmsigs.c
index 86fce0fe7..a23f151a2 100644
--- a/libguile/scmsigs.c
+++ b/libguile/scmsigs.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2004, 2006, 2007, 2008, 2009, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2004, 2006,
+ *   2007, 2008, 2009, 2011, 2013, 2014 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
@@ -28,39 +29,29 @@
 #include <stdio.h>
 #include <errno.h>
 
-#include "libguile/_scm.h"
-
-#include "libguile/async.h"
-#include "libguile/eval.h"
-#include "libguile/root.h"
-#include "libguile/vectors.h"
-#include "libguile/threads.h"
-
-#include "libguile/validate.h"
-#include "libguile/scmsigs.h"
-
 #ifdef HAVE_PROCESS_H
 #include <process.h>    /* for mingw */
 #endif
 
-#ifdef HAVE_UNISTD_H
 #include <unistd.h>
-#endif
 
 #ifdef HAVE_SYS_TIME_H
 #include <sys/time.h>
 #endif
 
-#ifdef __MINGW32__
-#include <windows.h>
-#define alarm(sec) (0)
-/* This weird comma expression is because Sleep is void under Windows. */
-#define sleep(sec) (Sleep ((sec) * 1000), 0)
-#define usleep(usec) (Sleep ((usec) / 1000), 0)
-#endif
-
 #include <full-write.h>
 
+#include "libguile/_scm.h"
+
+#include "libguile/async.h"
+#include "libguile/eval.h"
+#include "libguile/root.h"
+#include "libguile/vectors.h"
+#include "libguile/threads.h"
+
+#include "libguile/validate.h"
+#include "libguile/scmsigs.h"
+
 
 
 
@@ -150,28 +141,6 @@ struct signal_pipe_data
   int err;
 };
 
-#ifndef HAVE_GC_GET_SUSPEND_SIGNAL
-static int
-GC_get_suspend_signal (void)
-{
-#if defined SIG_SUSPEND
-  return SIG_SUSPEND;
-#elif defined SIGPWR
-  return SIGPWR;
-#elif defined SIGLOST
-  return SIGLOST;
-#elif defined _SIGRTMIN
-  return _SIGRTMIN + 6;
-#elif defined SIGRTMIN
-  return SIGRTMIN + 6;
-#elif defined __GLIBC__
-  return 32+6;
-#else
-  return SIGUSR1;
-#endif
-}
-#endif /* HAVE_GC_GET_SUSPEND_SIGNAL */
-
 static void*
 read_signal_pipe_data (void * data)
 {
@@ -526,6 +495,7 @@ SCM_DEFINE (scm_restore_signals, "restore-signals", 0, 0, 0,
 }
 #undef FUNC_NAME
 
+#if HAVE_DECL_ALARM
 SCM_DEFINE (scm_alarm, "alarm", 1, 0, 0,
            (SCM i),
 	    "Set a timer to raise a @code{SIGALRM} signal after the specified\n"
@@ -541,6 +511,24 @@ SCM_DEFINE (scm_alarm, "alarm", 1, 0, 0,
   return scm_from_uint (alarm (scm_to_uint (i)));
 }
 #undef FUNC_NAME
+#endif /* HAVE_ALARM */
+
+static void
+pack_tv (struct timeval *tv, SCM seconds, SCM microseconds)
+{
+  tv->tv_sec = scm_to_long (seconds);
+  tv->tv_usec = scm_to_long (microseconds);
+
+  /* Allow usec to be outside the range [0, 999999).  */
+  tv->tv_sec += tv->tv_usec / (1000 * 1000);
+  tv->tv_usec %= 1000 * 1000;
+}
+
+static SCM
+unpack_tv (const struct timeval *tv)
+{
+  return scm_cons (scm_from_long (tv->tv_sec), scm_from_long (tv->tv_usec));
+}
 
 #ifdef HAVE_SETITIMER
 SCM_DEFINE (scm_setitimer, "setitimer", 5, 0, 0,
@@ -571,20 +559,16 @@ SCM_DEFINE (scm_setitimer, "setitimer", 5, 0, 0,
   struct itimerval old_timer;
 
   c_which_timer = SCM_NUM2INT(1, which_timer);
-  new_timer.it_interval.tv_sec = SCM_NUM2LONG(2, interval_seconds);
-  new_timer.it_interval.tv_usec = SCM_NUM2LONG(3, interval_microseconds);
-  new_timer.it_value.tv_sec = SCM_NUM2LONG(4, value_seconds);
-  new_timer.it_value.tv_usec = SCM_NUM2LONG(5, value_microseconds);
+  pack_tv (&new_timer.it_interval, interval_seconds, interval_microseconds);
+  pack_tv (&new_timer.it_value, value_seconds, value_microseconds);
 
   SCM_SYSCALL(rv = setitimer(c_which_timer, &new_timer, &old_timer));
   
   if(rv != 0)
     SCM_SYSERROR;
 
-  return scm_list_2 (scm_cons (scm_from_long (old_timer.it_interval.tv_sec),
-			       scm_from_long (old_timer.it_interval.tv_usec)),
-		     scm_cons (scm_from_long (old_timer.it_value.tv_sec),
-			       scm_from_long (old_timer.it_value.tv_usec)));
+  return scm_list_2 (unpack_tv (&old_timer.it_interval),
+                     unpack_tv (&old_timer.it_value));
 }
 #undef FUNC_NAME
 #endif /* HAVE_SETITIMER */