+++ /dev/null
-// posix.cc -- Helper functions for POSIX-flavored OSs.
-
-/* Copyright (C) 2000, 2001, 2002 Free Software Foundation
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-#include <config.h>
-
-#include "posix.h"
-
-#include <stdlib.h>
-#include <errno.h>
-#include <signal.h>
-
-#include <jvm.h>
-#include <java/lang/Thread.h>
-#include <java/io/InterruptedIOException.h>
-#include <java/util/Properties.h>
-
-#if defined (ECOS)
-extern "C" unsigned long long _clock (void);
-#endif
-
-// gettimeofday implementation.
-jlong
-_Jv_platform_gettimeofday ()
-{
-#if defined (HAVE_GETTIMEOFDAY)
- timeval tv;
- gettimeofday (&tv, NULL);
- return (tv.tv_sec * 1000LL) + (tv.tv_usec / 1000LL);
-#elif defined (HAVE_TIME)
- return time (NULL) * 1000LL;
-#elif defined (HAVE_FTIME)
- struct timeb t;
- ftime (&t);
- return (t.time * 1000LL) + t.millitm;
-#elif defined (ECOS)
- // FIXME.
- return _clock();
-#else
- // In the absence of any function, time remains forever fixed.
- return 23000;
-#endif
-}
-
-// Platform-specific VM initialization.
-void
-_Jv_platform_initialize (void)
-{
-#if defined (HAVE_SIGACTION)
- // We only want this on POSIX systems.
- struct sigaction act;
- act.sa_handler = SIG_IGN;
- sigemptyset (&act.sa_mask);
- act.sa_flags = 0;
- sigaction (SIGPIPE, &act, NULL);
-#else
- signal (SIGPIPE, SIG_IGN);
-#endif
-}
-
-// Set platform-specific System properties.
-void
-_Jv_platform_initProperties (java::util::Properties* newprops)
-{
- // A convenience define.
-#define SET(Prop,Val) \
- newprops->put(JvNewStringLatin1 (Prop), JvNewStringLatin1 (Val))
-
- SET ("file.separator", "/");
- SET ("path.separator", ":");
- SET ("line.separator", "\n");
- char *tmpdir = ::getenv("TMPDIR");
- if (! tmpdir)
- tmpdir = "/tmp";
- SET ("java.io.tmpdir", tmpdir);
-}
-
-static inline void
-internal_gettimeofday (struct timeval *result)
-{
-#if defined (HAVE_GETTIMEOFDAY)
- gettimeofday (result, NULL);
-#else
- jlong val = _Jv_platform_gettimeofday ();
- result->tv_sec = val / 1000;
- result->tv_usec = (val % 1000) * 1000;
-#endif /* HAVE_GETTIMEOFDAY */
-}
-
-// A wrapper for select() which ignores EINTR.
-int
-_Jv_select (int n, fd_set *readfds, fd_set *writefds,
- fd_set *exceptfds, struct timeval *timeout)
-{
-#ifdef HAVE_SELECT
- // If we have a timeout, compute the absolute ending time.
- struct timeval end, delay;
- if (timeout)
- {
- internal_gettimeofday (&end);
- end.tv_usec += timeout->tv_usec;
- if (end.tv_usec >= 1000000)
- {
- ++end.tv_sec;
- end.tv_usec -= 1000000;
- }
- end.tv_sec += timeout->tv_sec;
- delay = *timeout;
- }
- else
- {
- // Placate compiler.
- delay.tv_sec = delay.tv_usec = 0;
- }
-
- while (1)
- {
- int r = select (n, readfds, writefds, exceptfds,
- timeout ? &delay : NULL);
- if (r != -1 || errno != EINTR)
- return r;
-
- // Here we know we got EINTR.
- if (java::lang::Thread::interrupted ())
- throw new java::io::InterruptedIOException (JvNewStringLatin1 ("select interrupted"));
-
- struct timeval after;
- if (timeout)
- {
- internal_gettimeofday (&after);
- // Now compute new timeout argument.
- delay.tv_usec = end.tv_usec - after.tv_usec;
- delay.tv_sec = end.tv_sec - after.tv_sec;
- if (delay.tv_usec < 0)
- {
- --delay.tv_sec;
- delay.tv_usec += 1000000;
- }
- if (delay.tv_sec < 0)
- {
- // We assume that the user wants a valid select() call
- // more than precise timing. So if we get a series of
- // EINTR we just keep trying with delay 0 until we get a
- // valid result.
- delay.tv_sec = 0;
- }
- }
- }
-#else /* HAVE_SELECT */
- return 0;
-#endif
-}