-/* Copyright (C) 1995,1996,1997,1998,2000,2001, 2004, 2006 Free Software Foundation, Inc.
- *
+/* Copyright (C) 1995-1998, 2000, 2001, 2004, 2006, 2010, 2012-2014
+ * 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 as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 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
+ * 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*/
# include <config.h>
#endif
+#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif
-#ifdef HAVE_UNISTD_H
#include <unistd.h>
-#endif
/* For Windows... */
#ifdef HAVE_IO_H
"@code{system-error} then it should be a list containing the\n"
"Unix @code{errno} value; If @var{key} is @code{signal} then it\n"
"should be a list containing the Unix signal number; If\n"
- "@var{key} is @code{out-of-range} or @code{wrong-type-arg},\n"
+ "@var{key} is @code{out-of-range}, @code{wrong-type-arg},\n"
+ "or @code{keyword-argument-error}, "
"it is a list containing the bad value; otherwise\n"
"it will usually be @code{#f}.")
#define FUNC_NAME s_scm_error_scm
/* No return, but just in case: */
fprintf (stderr, "Guile scm_ithrow returned!\n");
- exit (1);
+ exit (EXIT_FAILURE);
}
#undef FUNC_NAME
-#ifdef __MINGW32__
-# include "win32-socket.h"
-# define SCM_I_STRERROR(err) \
- ((err >= WSABASEERR) ? scm_i_socket_strerror (err) : strerror (err))
-# define SCM_I_ERRNO() \
- (errno ? errno : scm_i_socket_errno ())
-#else
-# define SCM_I_STRERROR(err) strerror (err)
-# define SCM_I_ERRNO() errno
-#endif /* __MINGW32__ */
-
/* strerror may not be thread safe, for instance in glibc (version 2.3.2) an
error number not among the known values results in a string like "Unknown
error 9999" formed in a static buffer, which will be overwritten by a
#define FUNC_NAME s_scm_strerror
{
SCM ret;
+ int errnum = scm_to_int (err); /* Must be done outside of the
+ critical section below, to avoid a
+ deadlock on errors. */
scm_dynwind_begin (0);
scm_i_dynwind_pthread_mutex_lock (&scm_i_misc_mutex);
- ret = scm_from_locale_string (SCM_I_STRERROR (scm_to_int (err)));
+ ret = scm_from_locale_string (strerror (errnum));
scm_dynwind_end ();
return ret;
void
scm_syserror (const char *subr)
{
- SCM err = scm_from_int (SCM_I_ERRNO ());
+ SCM err = scm_from_int (errno);
+
+ /* It could be that we're getting here because the syscall was
+ interrupted by a signal. In that case a signal handler might have
+ been queued to run. The signal handler probably throws an
+ exception.
+
+ If we don't try to run the signal handler now, it will run later,
+ which would result in two exceptions being thrown: this syserror,
+ and then at some later time the exception thrown by the async
+ signal handler.
+
+ The problem is that we don't know if handling the signal caused an
+ async to be queued. By this time scmsigs.c:take_signal will have
+ written a byte on the fd, but we don't know if the signal-handling
+ thread has read it off and queued an async.
+
+ Ideally we need some API like scm_i_ensure_signals_delivered() to
+ catch up signal delivery. Barring that, we just cross our digits
+ and pray; it could be that we handle the signal in time, and just
+ throw once, or it could be that we miss the deadline and throw
+ twice.
+ */
+#ifdef EINTR
+ if (scm_to_int (err) == EINTR)
+ SCM_ASYNC_TICK;
+#endif
+
scm_error (scm_system_error_key,
subr,
"~A",
void
scm_syserror_msg (const char *subr, const char *message, SCM args, int eno)
{
+ /* See above note about the EINTR signal handling race. */
+#ifdef EINTR
+ if (eno == EINTR)
+ SCM_ASYNC_TICK;
+#endif
scm_error (scm_system_error_key,
subr,
message,
scm_list_1 (bad_value));
}
+void
+scm_i_wrong_type_arg_symbol (SCM symbol, int pos, SCM bad_value)
+{
+ scm_error_scm (scm_arg_type_key,
+ scm_symbol_to_string (symbol),
+ (pos == 0) ? scm_from_locale_string ("Wrong type: ~S")
+ : scm_from_locale_string ("Wrong type argument in position ~A: ~S"),
+ (pos == 0) ? scm_list_1 (bad_value)
+ : scm_list_2 (scm_from_int (pos), bad_value),
+ scm_list_1 (bad_value));
+ scm_remember_upto_here_2 (symbol, bad_value);
+}
+
void
scm_wrong_type_arg_msg (const char *subr, int pos, SCM bad_value, const char *szMessage)
{
}
-SCM_GLOBAL_SYMBOL (scm_memory_alloc_key, "memory-allocation-error");
-void
-scm_memory_error (const char *subr)
-{
- fprintf (stderr, "FATAL: memory error in %s\n", subr);
- abort ();
-}
-
SCM_GLOBAL_SYMBOL (scm_misc_error_key, "misc-error");
void
scm_misc_error (const char *subr, const char *message, SCM args)
void
scm_init_error ()
{
-#include "libguile/cpp_err_symbols.c"
+#include "libguile/cpp-E.c"
#include "libguile/error.x"
}
HCoop / bpt / guile.git / blobdiff