From 6aa9316dea8f1eb68a36c590ded0460ab9fcd28b Mon Sep 17 00:00:00 2001
From: Jim Blandy <jimb@red-bean.com>
Date: Tue, 13 Oct 1998 23:17:09 +0000
Subject: [PATCH] Don't redefine sleep and usleep. * coop.c (sleep, usleep):
 Remove declarations; we don't use or redefine these any more.
 (scm_thread_usleep, scm_thread_sleep): New functions which do the job of
 usleep and sleep in a thread-friendly way.  We can use these in the rest of
 Guile.  Define versions for systems both with and without iselect. * coop.c
 (scm_thread_sleep): Make `slept' an unsigned long. * coop.c (coop_sleephelp):
 Remove ANSI #ifdef hair.

---
 libguile/coop.c | 60 +++++++++++++++----------------------------------
 1 file changed, 18 insertions(+), 42 deletions(-)

diff --git a/libguile/coop.c b/libguile/coop.c
index 0cb1bea0e..d69f32133 100644
--- a/libguile/coop.c
+++ b/libguile/coop.c
@@ -40,7 +40,7 @@
  * If you do not wish that, delete this exception notice.  */
 
 
-/* $Id: coop.c,v 1.13 1998-10-12 21:08:36 jimb Exp $ */
+/* $Id: coop.c,v 1.14 1998-10-13 23:17:09 jimb Exp $ */
 
 /* Cooperative thread library, based on QuickThreads */
 
@@ -51,20 +51,6 @@
 #include <qt.h>
 #include "eval.h"
 
-/* Provide declarations for these, if the system does not.  */
-
-#if defined(MISSING_SLEEP_DECL)
-extern unsigned int sleep (unsigned int);
-#endif
-
-#if defined(MISSING_USLEEP_DECL)
-#ifdef USLEEP_RETURNS_VOID
-extern void usleep (USLEEP_ARG_TYPE);
-#else
-extern int usleep (USLEEP_ARG_TYPE);
-#endif
-#endif
-
 /* #define COOP_STKSIZE (0x10000) */
 #define COOP_STKSIZE (scm_eval_stack)
 
@@ -649,16 +635,8 @@ coop_yieldhelp (sp, old, blockq)
 /* Replacement for the system's sleep() function. Does the right thing
    for the process - but not for the system (it busy-waits) */
 
-#ifdef __STDC__
 void *
 coop_sleephelp (qt_t *sp, void *old, void *blockq)
-#else
-void *
-coop_sleephelp (sp, old, bolckq)
-     qt_t *sp;
-     void *old;
-     void *blockq;
-#endif
 {
   ((coop_t *)old)->sp = sp;
   /* old is already on the sleep queue - so there's no need to
@@ -668,29 +646,23 @@ coop_sleephelp (sp, old, bolckq)
 
 #ifdef GUILE_ISELECT
 
-#ifdef USLEEP_RETURNS_VOID
-void
-#else
-int
-#endif
-usleep (USLEEP_ARG_TYPE usec)
+unsigned long 
+scm_thread_usleep (unsigned long usec)
 {
   struct timeval timeout;
   timeout.tv_sec = 0;
   timeout.tv_usec = usec;
   scm_internal_select (0, NULL, NULL, NULL, &timeout);
-#ifndef USLEEP_RETURNS_VOID
   return 0;  /* Maybe we should calculate actual time slept,
 		but this is faster... :) */
-#endif
 }
 
-unsigned
-sleep (unsigned sec)
+unsigned long
+scm_thread_sleep (unsigned long sec)
 {
   time_t now = time (NULL);
   struct timeval timeout;
-  int slept;
+  unsigned long slept;
   timeout.tv_sec = sec;
   timeout.tv_usec = 0;
   scm_internal_select (0, NULL, NULL, NULL, &timeout);
@@ -700,14 +672,8 @@ sleep (unsigned sec)
 
 #else /* GUILE_ISELECT */
 
-#ifdef __STDC__
-unsigned
-sleep (unsigned s)
-#else
-unsigned
-sleep (s)
-     unsigned s;
-#endif
+unsigned long
+scm_thread_sleep (unsigned long s)
 {
   coop_t *newthread, *old;
   time_t now = time (NULL);
@@ -730,4 +696,14 @@ sleep (s)
   return s;
 }
 
+unsigned long 
+scm_thread_usleep (unsigned long usec)
+{
+  /* We're so cheap.  */
+  scm_thread_sleep (usec / 1000000);
+  struct timeval timeout;
+  return 0;  /* Maybe we should calculate actual time slept,
+		but this is faster... :) */
+}
+
 #endif /* GUILE_ISELECT */