--- /dev/null
+/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2004, 2006, 2007 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 as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+\f
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <fcntl.h> /* for mingw */
+#include <signal.h>
+#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/validate.h"
+#include "libguile/scmsigs.h"
+
+#ifdef HAVE_IO_H
+#include <io.h> /* for mingw _pipe() */
+#endif
+
+#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)
+#define pipe(fd) _pipe (fd, 256, O_BINARY)
+#endif
+
+\f
+
+/* SIGRETTYPE is the type that signal handlers return. See <signal.h> */
+
+#ifdef RETSIGTYPE
+# define SIGRETTYPE RETSIGTYPE
+#else
+# ifdef STDC_HEADERS
+# define SIGRETTYPE void
+# else
+# define SIGRETTYPE int
+# endif
+#endif
+
+\f
+
+/* take_signal is installed as the C signal handler whenever a Scheme
+ handler is set. When a signal arrives, take_signal will write a
+ byte into the 'signal pipe'. The 'signal delivery thread' will
+ read this pipe and queue the appropriate asyncs.
+
+ When Guile is built without threads, the signal handler will
+ install the async directly.
+*/
+
+
+/* Scheme vectors with information about a signal. signal_handlers
+ contains the handler procedure or #f, signal_handler_asyncs
+ contains the thunk to be marked as an async when the signal arrives
+ (or the cell with the thunk in a singlethreaded Guile), and
+ signal_handler_threads points to the thread that a signal should be
+ delivered to.
+*/
+static SCM *signal_handlers;
+static SCM signal_handler_asyncs;
+static SCM signal_handler_threads;
+
+/* saves the original C handlers, when a new handler is installed.
+ set to SIG_ERR if the original handler is installed. */
+#ifdef HAVE_SIGACTION
+static struct sigaction orig_handlers[NSIG];
+#else
+static SIGRETTYPE (*orig_handlers[NSIG])(int);
+#endif
+
+static SCM
+handler_to_async (SCM handler, int signum)
+{
+ if (scm_is_false (handler))
+ return SCM_BOOL_F;
+ else
+ {
+ SCM async = scm_primitive_eval_x (scm_list_3 (scm_sym_lambda, SCM_EOL,
+ scm_list_2 (handler,
+ scm_from_int (signum))));
+#if !SCM_USE_PTHREAD_THREADS
+ async = scm_cons (async, SCM_BOOL_F);
+#endif
+ return async;
+ }
+}
+
+#if SCM_USE_PTHREAD_THREADS
+/* On mingw there's no notion of inter-process signals, only a raise()
+ within the process itself which apparently invokes the registered handler
+ immediately. Not sure how well the following code will cope in this
+ case. It builds but it may not offer quite the same scheme-level
+ semantics as on a proper system. If you're relying on much in the way of
+ signal handling on mingw you probably lose anyway. */
+
+static int signal_pipe[2];
+
+static SIGRETTYPE
+take_signal (int signum)
+{
+ size_t count;
+ char sigbyte = signum;
+
+ count = write (signal_pipe[1], &sigbyte, 1);
+
+#ifndef HAVE_SIGACTION
+ signal (signum, take_signal);
+#endif
+}
+
+typedef struct {
+ ssize_t res;
+ int fd;
+ char *buf;
+ size_t n;
+} read_without_guile_data;
+
+static void *
+do_read_without_guile (void *raw_data)
+{
+ read_without_guile_data *data = (read_without_guile_data *)raw_data;
+ data->res = read (data->fd, data->buf, data->n);
+ return NULL;
+}
+
+static ssize_t
+read_without_guile (int fd, char *buf, size_t n)
+{
+ read_without_guile_data data;
+ data.fd = fd;
+ data.buf = buf;
+ data.n = n;
+ scm_without_guile (do_read_without_guile, &data);
+ return data.res;
+}
+
+static SCM
+signal_delivery_thread (void *data)
+{
+ int n, sig;
+ char sigbyte;
+#if HAVE_PTHREAD_SIGMASK /* not on mingw, see notes above */
+ sigset_t all_sigs;
+ sigfillset (&all_sigs);
+ scm_i_pthread_sigmask (SIG_SETMASK, &all_sigs, NULL);
+#endif
+
+ while (1)
+ {
+ n = read_without_guile (signal_pipe[0], &sigbyte, 1);
+ sig = sigbyte;
+ if (n == 1 && sig >= 0 && sig < NSIG)
+ {
+ SCM h, t;
+
+ h = SCM_SIMPLE_VECTOR_REF (signal_handler_asyncs, sig);
+ t = SCM_SIMPLE_VECTOR_REF (signal_handler_threads, sig);
+ if (scm_is_true (h))
+ scm_system_async_mark_for_thread (h, t);
+ }
+ else if (n < 0 && errno != EINTR)
+ perror ("error in signal delivery thread");
+ }
+
+ return SCM_UNSPECIFIED; /* not reached */
+}
+
+static void
+start_signal_delivery_thread (void)
+{
+ if (pipe (signal_pipe) != 0)
+ scm_syserror (NULL);
+ scm_spawn_thread (signal_delivery_thread, NULL,
+ scm_handle_by_message, "signal delivery thread");
+}
+
+static void
+ensure_signal_delivery_thread ()
+{
+ static scm_i_pthread_once_t once = SCM_I_PTHREAD_ONCE_INIT;
+ scm_i_pthread_once (&once, start_signal_delivery_thread);
+}
+
+#else /* !SCM_USE_PTHREAD_THREADS */
+
+static SIGRETTYPE
+take_signal (int signum)
+{
+ SCM cell = SCM_SIMPLE_VECTOR_REF (signal_handler_asyncs, signum);
+ scm_i_thread *t = SCM_I_CURRENT_THREAD;
+
+ if (scm_is_false (SCM_CDR (cell)))
+ {
+ SCM_SETCDR (cell, t->active_asyncs);
+ t->active_asyncs = cell;
+ t->pending_asyncs = 1;
+ }
+
+#ifndef HAVE_SIGACTION
+ signal (signum, take_signal);
+#endif
+}
+
+static void
+ensure_signal_delivery_thread ()
+{
+ return;
+}
+
+#endif /* !SCM_USE_PTHREAD_THREADS */
+
+static void
+install_handler (int signum, SCM thread, SCM handler, SCM async)
+{
+ SCM_SIMPLE_VECTOR_SET (*signal_handlers, signum, handler);
+ SCM_SIMPLE_VECTOR_SET (signal_handler_asyncs, signum, async);
+ SCM_SIMPLE_VECTOR_SET (signal_handler_threads, signum, thread);
+}
+
+SCM
+scm_sigaction (SCM signum, SCM handler, SCM flags)
+{
+ return scm_sigaction_for_thread (signum, handler, flags, SCM_UNDEFINED);
+}
+
+/* user interface for installation of signal handlers. */
+SCM_DEFINE (scm_sigaction_for_thread, "sigaction", 1, 3, 0,
+ (SCM signum, SCM handler, SCM flags, SCM thread),
+ "Install or report the signal handler for a specified signal.\n\n"
+ "@var{signum} is the signal number, which can be specified using the value\n"
+ "of variables such as @code{SIGINT}.\n\n"
+ "If @var{handler} is omitted, @code{sigaction} returns a pair: the\n"
+ "CAR is the current\n"
+ "signal hander, which will be either an integer with the value @code{SIG_DFL}\n"
+ "(default action) or @code{SIG_IGN} (ignore), or the Scheme procedure which\n"
+ "handles the signal, or @code{#f} if a non-Scheme procedure handles the\n"
+ "signal. The CDR contains the current @code{sigaction} flags for the handler.\n\n"
+ "If @var{handler} is provided, it is installed as the new handler for\n"
+ "@var{signum}. @var{handler} can be a Scheme procedure taking one\n"
+ "argument, or the value of @code{SIG_DFL} (default action) or\n"
+ "@code{SIG_IGN} (ignore), or @code{#f} to restore whatever signal handler\n"
+ "was installed before @code{sigaction} was first used. When\n"
+ "a scheme procedure has been specified, that procedure will run\n"
+ "in the given @var{thread}. When no thread has been given, the\n"
+ "thread that made this call to @code{sigaction} is used.\n"
+ "Flags can optionally be specified for the new handler.\n"
+ "The return value is a pair with information about the\n"
+ "old handler as described above.\n\n"
+ "This interface does not provide access to the \"signal blocking\"\n"
+ "facility. Maybe this is not needed, since the thread support may\n"
+ "provide solutions to the problem of consistent access to data\n"
+ "structures.")
+#define FUNC_NAME s_scm_sigaction_for_thread
+{
+ int csig;
+#ifdef HAVE_SIGACTION
+ struct sigaction action;
+ struct sigaction old_action;
+#else
+ SIGRETTYPE (* chandler) (int) = SIG_DFL;
+ SIGRETTYPE (* old_chandler) (int);
+#endif
+ int query_only = 0;
+ int save_handler = 0;
+
+ SCM old_handler;
+ SCM async;
+
+ csig = scm_to_signed_integer (signum, 0, NSIG-1);
+
+#if defined(HAVE_SIGACTION)
+ action.sa_flags = 0;
+ if (!SCM_UNBNDP (flags))
+ action.sa_flags |= scm_to_int (flags);
+ sigemptyset (&action.sa_mask);
+#endif
+
+ if (SCM_UNBNDP (thread))
+ thread = scm_current_thread ();
+ else
+ {
+ SCM_VALIDATE_THREAD (4, thread);
+ if (scm_c_thread_exited_p (thread))
+ SCM_MISC_ERROR ("thread has already exited", SCM_EOL);
+ }
+
+ /* Allocate upfront, as we can't do it inside the critical
+ section. */
+ async = handler_to_async (handler, csig);
+
+ ensure_signal_delivery_thread ();
+
+ SCM_CRITICAL_SECTION_START;
+ old_handler = SCM_SIMPLE_VECTOR_REF (*signal_handlers, csig);
+ if (SCM_UNBNDP (handler))
+ query_only = 1;
+ else if (scm_is_integer (handler))
+ {
+ long handler_int = scm_to_long (handler);
+
+ if (handler_int == (long) SIG_DFL || handler_int == (long) SIG_IGN)
+ {
+#ifdef HAVE_SIGACTION
+ action.sa_handler = (SIGRETTYPE (*) (int)) handler_int;
+#else
+ chandler = (SIGRETTYPE (*) (int)) handler_int;
+#endif
+ install_handler (csig, SCM_BOOL_F, SCM_BOOL_F, async);
+ }
+ else
+ {
+ SCM_CRITICAL_SECTION_END;
+ SCM_OUT_OF_RANGE (2, handler);
+ }
+ }
+ else if (scm_is_false (handler))
+ {
+ /* restore the default handler. */
+#ifdef HAVE_SIGACTION
+ if (orig_handlers[csig].sa_handler == SIG_ERR)
+ query_only = 1;
+ else
+ {
+ action = orig_handlers[csig];
+ orig_handlers[csig].sa_handler = SIG_ERR;
+ install_handler (csig, SCM_BOOL_F, SCM_BOOL_F, async);
+ }
+#else
+ if (orig_handlers[csig] == SIG_ERR)
+ query_only = 1;
+ else
+ {
+ chandler = orig_handlers[csig];
+ orig_handlers[csig] = SIG_ERR;
+ install_handler (csig, SCM_BOOL_F, SCM_BOOL_F, async);
+ }
+#endif
+ }
+ else
+ {
+ SCM_VALIDATE_PROC (2, handler);
+#ifdef HAVE_SIGACTION
+ action.sa_handler = take_signal;
+ if (orig_handlers[csig].sa_handler == SIG_ERR)
+ save_handler = 1;
+#else
+ chandler = take_signal;
+ if (orig_handlers[csig] == SIG_ERR)
+ save_handler = 1;
+#endif
+ install_handler (csig, thread, handler, async);
+ }
+
+ /* XXX - Silently ignore setting handlers for `program error signals'
+ because they can't currently be handled by Scheme code.
+ */
+
+ switch (csig)
+ {
+ /* This list of program error signals is from the GNU Libc
+ Reference Manual */
+ case SIGFPE:
+ case SIGILL:
+ case SIGSEGV:
+#ifdef SIGBUS
+ case SIGBUS:
+#endif
+ case SIGABRT:
+#if defined(SIGIOT) && (SIGIOT != SIGABRT)
+ case SIGIOT:
+#endif
+#ifdef SIGTRAP
+ case SIGTRAP:
+#endif
+#ifdef SIGEMT
+ case SIGEMT:
+#endif
+#ifdef SIGSYS
+ case SIGSYS:
+#endif
+ query_only = 1;
+ }
+
+#ifdef HAVE_SIGACTION
+ if (query_only)
+ {
+ if (sigaction (csig, 0, &old_action) == -1)
+ SCM_SYSERROR;
+ }
+ else
+ {
+ if (sigaction (csig, &action , &old_action) == -1)
+ SCM_SYSERROR;
+ if (save_handler)
+ orig_handlers[csig] = old_action;
+ }
+ if (old_action.sa_handler == SIG_DFL || old_action.sa_handler == SIG_IGN)
+ old_handler = scm_from_long ((long) old_action.sa_handler);
+ SCM_CRITICAL_SECTION_END;
+ return scm_cons (old_handler, scm_from_int (old_action.sa_flags));
+#else
+ if (query_only)
+ {
+ if ((old_chandler = signal (csig, SIG_IGN)) == SIG_ERR)
+ SCM_SYSERROR;
+ if (signal (csig, old_chandler) == SIG_ERR)
+ SCM_SYSERROR;
+ }
+ else
+ {
+ if ((old_chandler = signal (csig, chandler)) == SIG_ERR)
+ SCM_SYSERROR;
+ if (save_handler)
+ orig_handlers[csig] = old_chandler;
+ }
+ if (old_chandler == SIG_DFL || old_chandler == SIG_IGN)
+ old_handler = scm_from_long ((long) old_chandler);
+ SCM_CRITICAL_SECTION_END;
+ return scm_cons (old_handler, scm_from_int (0));
+#endif
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_restore_signals, "restore-signals", 0, 0, 0,
+ (void),
+ "Return all signal handlers to the values they had before any call to\n"
+ "@code{sigaction} was made. The return value is unspecified.")
+#define FUNC_NAME s_scm_restore_signals
+{
+ int i;
+ for (i = 0; i < NSIG; i++)
+ {
+#ifdef HAVE_SIGACTION
+ if (orig_handlers[i].sa_handler != SIG_ERR)
+ {
+ if (sigaction (i, &orig_handlers[i], NULL) == -1)
+ SCM_SYSERROR;
+ orig_handlers[i].sa_handler = SIG_ERR;
+ SCM_SIMPLE_VECTOR_SET (*signal_handlers, i, SCM_BOOL_F);
+ }
+#else
+ if (orig_handlers[i] != SIG_ERR)
+ {
+ if (signal (i, orig_handlers[i]) == SIG_ERR)
+ SCM_SYSERROR;
+ orig_handlers[i] = SIG_ERR;
+ SCM_SIMPLE_VECTOR_SET (*signal_handlers, i, SCM_BOOL_F);
+ }
+#endif
+ }
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_alarm, "alarm", 1, 0, 0,
+ (SCM i),
+ "Set a timer to raise a @code{SIGALRM} signal after the specified\n"
+ "number of seconds (an integer). It's advisable to install a signal\n"
+ "handler for\n"
+ "@code{SIGALRM} beforehand, since the default action is to terminate\n"
+ "the process.\n\n"
+ "The return value indicates the time remaining for the previous alarm,\n"
+ "if any. The new value replaces the previous alarm. If there was\n"
+ "no previous alarm, the return value is zero.")
+#define FUNC_NAME s_scm_alarm
+{
+ return scm_from_uint (alarm (scm_to_uint (i)));
+}
+#undef FUNC_NAME
+
+#ifdef HAVE_SETITIMER
+SCM_DEFINE (scm_setitimer, "setitimer", 5, 0, 0,
+ (SCM which_timer,
+ SCM interval_seconds, SCM interval_microseconds,
+ SCM value_seconds, SCM value_microseconds),
+ "Set the timer specified by @var{which_timer} according to the given\n"
+ "@var{interval_seconds}, @var{interval_microseconds},\n"
+ "@var{value_seconds}, and @var{value_microseconds} values.\n"
+ "\n"
+ "Return information about the timer's previous setting."
+ "\n"
+ "Errors are handled as described in the guile info pages under ``POSIX\n"
+ "Interface Conventions''.\n"
+ "\n"
+ "The timers available are: @code{ITIMER_REAL}, @code{ITIMER_VIRTUAL},\n"
+ "and @code{ITIMER_PROF}.\n"
+ "\n"
+ "The return value will be a list of two cons pairs representing the\n"
+ "current state of the given timer. The first pair is the seconds and\n"
+ "microseconds of the timer @code{it_interval}, and the second pair is\n"
+ "the seconds and microseconds of the timer @code{it_value}.")
+#define FUNC_NAME s_scm_setitimer
+{
+ int rv;
+ int c_which_timer;
+ struct itimerval new_timer;
+ 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);
+
+ 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)));
+}
+#undef FUNC_NAME
+#endif /* HAVE_SETITIMER */
+
+#ifdef HAVE_GETITIMER
+SCM_DEFINE (scm_getitimer, "getitimer", 1, 0, 0,
+ (SCM which_timer),
+ "Return information about the timer specified by @var{which_timer}"
+ "\n"
+ "Errors are handled as described in the guile info pages under ``POSIX\n"
+ "Interface Conventions''.\n"
+ "\n"
+ "The timers available are: @code{ITIMER_REAL}, @code{ITIMER_VIRTUAL},\n"
+ "and @code{ITIMER_PROF}.\n"
+ "\n"
+ "The return value will be a list of two cons pairs representing the\n"
+ "current state of the given timer. The first pair is the seconds and\n"
+ "microseconds of the timer @code{it_interval}, and the second pair is\n"
+ "the seconds and microseconds of the timer @code{it_value}.")
+#define FUNC_NAME s_scm_getitimer
+{
+ int rv;
+ int c_which_timer;
+ struct itimerval old_timer;
+
+ c_which_timer = SCM_NUM2INT(1, which_timer);
+
+ SCM_SYSCALL(rv = getitimer(c_which_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)));
+}
+#undef FUNC_NAME
+#endif /* HAVE_GETITIMER */
+
+#ifdef HAVE_PAUSE
+SCM_DEFINE (scm_pause, "pause", 0, 0, 0,
+ (),
+ "Pause the current process (thread?) until a signal arrives whose\n"
+ "action is to either terminate the current process or invoke a\n"
+ "handler procedure. The return value is unspecified.")
+#define FUNC_NAME s_scm_pause
+{
+ pause ();
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+#endif
+
+SCM_DEFINE (scm_sleep, "sleep", 1, 0, 0,
+ (SCM i),
+ "Wait for the given number of seconds (an integer) or until a signal\n"
+ "arrives. The return value is zero if the time elapses or the number\n"
+ "of seconds remaining otherwise.\n"
+ "\n"
+ "See also @code{usleep}.")
+#define FUNC_NAME s_scm_sleep
+{
+ return scm_from_uint (scm_std_sleep (scm_to_uint (i)));
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_usleep, "usleep", 1, 0, 0,
+ (SCM i),
+ "Wait the given period @var{usecs} microseconds (an integer).\n"
+ "If a signal arrives the wait stops and the return value is the\n"
+ "time remaining, in microseconds. If the period elapses with no\n"
+ "signal the return is zero.\n"
+ "\n"
+ "On most systems the process scheduler is not microsecond accurate and\n"
+ "the actual period slept by @code{usleep} may be rounded to a system\n"
+ "clock tick boundary. Traditionally such ticks were 10 milliseconds\n"
+ "apart, and that interval is often still used.\n"
+ "\n"
+ "See also @code{sleep}.")
+#define FUNC_NAME s_scm_usleep
+{
+ return scm_from_ulong (scm_std_usleep (scm_to_ulong (i)));
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_raise, "raise", 1, 0, 0,
+ (SCM sig),
+ "Sends a specified signal @var{sig} to the current process, where\n"
+ "@var{sig} is as described for the kill procedure.")
+#define FUNC_NAME s_scm_raise
+{
+ if (raise (scm_to_int (sig)) != 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+\f
+
+void
+scm_init_scmsigs ()
+{
+ int i;
+
+ signal_handlers =
+ SCM_VARIABLE_LOC (scm_c_define ("signal-handlers",
+ scm_c_make_vector (NSIG, SCM_BOOL_F)));
+ signal_handler_asyncs =
+ scm_permanent_object (scm_c_make_vector (NSIG, SCM_BOOL_F));
+ signal_handler_threads =
+ scm_permanent_object (scm_c_make_vector (NSIG, SCM_BOOL_F));
+
+ for (i = 0; i < NSIG; i++)
+ {
+#ifdef HAVE_SIGACTION
+ orig_handlers[i].sa_handler = SIG_ERR;
+
+#else
+ orig_handlers[i] = SIG_ERR;
+#endif
+ }
+
+ scm_c_define ("NSIG", scm_from_long (NSIG));
+ scm_c_define ("SIG_IGN", scm_from_long ((long) SIG_IGN));
+ scm_c_define ("SIG_DFL", scm_from_long ((long) SIG_DFL));
+#ifdef SA_NOCLDSTOP
+ scm_c_define ("SA_NOCLDSTOP", scm_from_long (SA_NOCLDSTOP));
+#endif
+#ifdef SA_RESTART
+ scm_c_define ("SA_RESTART", scm_from_long (SA_RESTART));
+#endif
+
+#if defined(HAVE_SETITIMER) || defined(HAVE_GETITIMER)
+ /* Stuff needed by setitimer and getitimer. */
+ scm_c_define ("ITIMER_REAL", scm_from_int (ITIMER_REAL));
+ scm_c_define ("ITIMER_VIRTUAL", scm_from_int (ITIMER_VIRTUAL));
+ scm_c_define ("ITIMER_PROF", scm_from_int (ITIMER_PROF));
+#endif /* defined(HAVE_SETITIMER) || defined(HAVE_GETITIMER) */
+
+#include "libguile/scmsigs.x"
+}
+
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
projects / lilypond.git / blobdiff