-/* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-\f
-
-#include <stdio.h>
-#include "_scm.h"
-#include "pairs.h"
-#include "genio.h"
-#include "throw.h"
-
-#include "error.h"
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-\f
-
-\f
-/* {Errors and Exceptional Conditions}
- */
-
-
-extern int errno;
-
-void (*scm_error_callback) () = 0;
-
-/* All errors should pass through here. */
-void
-scm_error (key, subr, message, args, rest)
- SCM key;
- char *subr;
- char *message;
- SCM args;
- SCM rest;
-{
- SCM arg_list;
- if (scm_error_callback)
- (*scm_error_callback) (key, subr, message, args, rest);
-
- arg_list = scm_listify (subr ? scm_makfrom0str (subr) : SCM_BOOL_F,
- message ? scm_makfrom0str (message) : SCM_BOOL_F,
- args,
- rest,
- SCM_UNDEFINED);
- scm_ithrow (key, arg_list, 1);
-
- /* No return, but just in case: */
-
- write (2, "unhandled system error\n",
- sizeof ("unhandled system error\n") - 1);
- exit (1);
-}
-
-/* Scheme interface to scm_error. */
-SCM_PROC(s_error_scm, "scm-error", 5, 0, 0, scm_error_scm);
-SCM
-scm_error_scm (key, subr, message, args, rest)
- SCM key;
- SCM subr;
- SCM message;
- SCM args;
- SCM rest;
-{
- SCM_ASSERT (SCM_NIMP (key) && SCM_SYMBOLP (key), key, SCM_ARG1, s_error_scm);
- SCM_ASSERT (SCM_FALSEP (subr) || (SCM_NIMP (subr) && SCM_ROSTRINGP (subr)),
- subr, SCM_ARG2, s_error_scm);
- SCM_ASSERT (SCM_FALSEP (message)
- || (SCM_NIMP (message) && SCM_ROSTRINGP (message)),
- message, SCM_ARG3, s_error_scm);
-
- SCM_COERCE_SUBSTR (message);
-
- scm_error (key,
- (SCM_FALSEP (subr)) ? NULL : SCM_ROCHARS (subr),
- (SCM_FALSEP (message)) ? NULL : SCM_ROCHARS (message),
- args,
- rest);
- /* not reached. */
-}
-
-SCM_SYMBOL (scm_system_error_key, "system-error");
-void
-scm_syserror (subr)
- char *subr;
-{
- scm_error (scm_system_error_key,
- subr,
- "%s",
- scm_listify (scm_makfrom0str (strerror (errno)),
- SCM_UNDEFINED),
- scm_listify (SCM_MAKINUM (errno), SCM_UNDEFINED));
-}
-
-void
-scm_syserror_msg (subr, message, args, eno)
- char *subr;
- char *message;
- SCM args;
- int eno;
-{
- scm_error (scm_system_error_key,
- subr,
- message,
- args,
- scm_listify (SCM_MAKINUM (eno), SCM_UNDEFINED));
-}
-
-void
-scm_sysmissing (subr)
- char *subr;
-{
-#ifdef ENOSYS
- scm_error (scm_system_error_key,
- subr,
- "%s",
- scm_listify (scm_makfrom0str (strerror (ENOSYS)), SCM_UNDEFINED),
- scm_listify (SCM_MAKINUM (ENOSYS), SCM_UNDEFINED));
-#else
- scm_error (scm_system_error_key,
- subr,
- "Missing function",
- SCM_BOOL_F,
- scm_listify (SCM_MAKINUM (0), SCM_UNDEFINED));
-#endif
-}
-
-SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow");
-void
-scm_num_overflow (subr)
- char *subr;
-{
- scm_error (scm_num_overflow_key,
- subr,
- "Numerical overflow",
- SCM_BOOL_F,
- SCM_BOOL_F);
-}
-
-SCM_SYMBOL (scm_out_of_range_key, "out-of-range");
-void
-scm_out_of_range (subr, bad_value)
- char *subr;
- SCM bad_value;
-{
- scm_error (scm_out_of_range_key,
- subr,
- "Argument out of range: %S",
- scm_listify (bad_value, SCM_UNDEFINED),
- SCM_BOOL_F);
-}
-
-SCM_SYMBOL (scm_args_number_key, "wrong-number-of-args");
-void
-scm_wrong_num_args (proc)
- SCM proc;
-{
- scm_error (scm_args_number_key,
- NULL,
- "Wrong number of arguments to %s",
- scm_listify (proc, SCM_UNDEFINED),
- SCM_BOOL_F);
-}
-
-SCM_SYMBOL (scm_arg_type_key, "wrong-type-arg");
-void
-scm_wrong_type_arg (subr, pos, bad_value)
- char *subr;
- int pos;
- SCM bad_value;
-{
- scm_error (scm_arg_type_key,
- subr,
- (pos == 0) ? "Wrong type argument: %S"
- : "Wrong type argument in position %s: %S",
- (pos == 0) ? scm_listify (bad_value, SCM_UNDEFINED)
- : scm_listify (SCM_MAKINUM (pos), bad_value, SCM_UNDEFINED),
- SCM_BOOL_F);
-}
-
-SCM_SYMBOL (scm_memory_alloc_key, "memory-allocation-error");
-void
-scm_memory_error (subr)
- char *subr;
-{
- scm_error (scm_memory_alloc_key,
- subr,
- "Memory allocation error",
- SCM_BOOL_F,
- SCM_BOOL_F);
-}
-
-SCM_SYMBOL (scm_misc_error_key, "misc-error");
-void
-scm_misc_error (subr, message, args)
- char *subr;
- char *message;
- SCM args;
-{
- scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F);
-}
-
-/* implements the SCM_ASSERT interface. */
-SCM
-scm_wta (arg, pos, s_subr)
- SCM arg;
- char *pos;
- char *s_subr;
-{
- if (!s_subr || !*s_subr)
- s_subr = NULL;
- if ((~0x1fL) & (long) pos)
- {
- /* error string supplied. */
- scm_misc_error (s_subr, pos, SCM_BOOL_F);
- }
- else
- {
- /* numerical error code. */
- int error = (long) pos;
-
- switch (error)
- {
- case SCM_ARGn:
- scm_wrong_type_arg (s_subr, 0, arg);
- case SCM_ARG1:
- scm_wrong_type_arg (s_subr, 1, arg);
- case SCM_ARG2:
- scm_wrong_type_arg (s_subr, 2, arg);
- case SCM_ARG3:
- scm_wrong_type_arg (s_subr, 3, arg);
- case SCM_ARG4:
- scm_wrong_type_arg (s_subr, 4, arg);
- case SCM_ARG5:
- scm_wrong_type_arg (s_subr, 5, arg);
- case SCM_WNA:
- scm_wrong_num_args (arg);
- case SCM_OUTOFRANGE:
- scm_out_of_range (s_subr, arg);
- case SCM_NALLOC:
- scm_memory_error (s_subr);
- default:
- /* this shouldn't happen. */
- scm_misc_error (s_subr, "Unknown error", SCM_BOOL_F);
- }
- }
- return SCM_UNSPECIFIED;
-}
-
-/* obsolete interface: scm_everr (exp, env, arg, pos, s_subr)
- was equivalent to scm_wta (arg, pos, s_subr) */
-
-void
-scm_init_error ()
-{
-#include "cpp_err_symbols.c"
-#include "error.x"
-}
-
+/* Copyright (C) 1995,1996,1997,1998,2000,2001, 2004 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
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+
+#include "libguile/_scm.h"
+#include "libguile/dynwind.h"
+#include "libguile/pairs.h"
+#include "libguile/strings.h"
+#include "libguile/throw.h"
+
+#include "libguile/validate.h"
+#include "libguile/error.h"
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+/* For Windows... */
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif
+\f
+
+/* {Errors and Exceptional Conditions}
+ */
+
+
+/* Scheme interface to scm_error_scm. */
+void
+scm_error (SCM key, const char *subr, const char *message, SCM args, SCM rest)
+{
+ scm_error_scm
+ (key,
+ (subr == NULL) ? SCM_BOOL_F : scm_from_locale_string (subr),
+ (message == NULL) ? SCM_BOOL_F : scm_from_locale_string (message),
+ args, rest);
+}
+
+/* All errors should pass through here. */
+SCM_DEFINE (scm_error_scm, "scm-error", 5, 0, 0,
+ (SCM key, SCM subr, SCM message, SCM args, SCM data),
+ "Raise an error with key @var{key}. @var{subr} can be a string\n"
+ "naming the procedure associated with the error, or @code{#f}.\n"
+ "@var{message} is the error message string, possibly containing\n"
+ "@code{~S} and @code{~A} escapes. When an error is reported,\n"
+ "these are replaced by formatting the corresponding members of\n"
+ "@var{args}: @code{~A} (was @code{%s} in older versions of\n"
+ "Guile) formats using @code{display} and @code{~S} (was\n"
+ "@code{%S}) formats using @code{write}. @var{data} is a list or\n"
+ "@code{#f} depending on @var{key}: if @var{key} is\n"
+ "@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"
+ "it is a list containing the bad value; otherwise\n"
+ "it will usually be @code{#f}.")
+#define FUNC_NAME s_scm_error_scm
+{
+ if (scm_gc_running_p)
+ {
+ /* The error occured during GC --- abort */
+ fprintf (stderr, "Guile: error during GC.\n"),
+ abort ();
+ }
+
+ scm_ithrow (key, scm_list_4 (subr, message, args, data), 1);
+
+ /* No return, but just in case: */
+ fprintf (stderr, "Guile scm_ithrow returned!\n");
+ exit (1);
+}
+#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
+ similar call in another thread. A test program running two threads with
+ different unknown error numbers can trip this fairly quickly.
+
+ Some systems don't do what glibc does, instead just giving a single
+ "Unknown error" for unrecognised numbers. It doesn't seem worth trying
+ to tell if that's the case, a mutex is reasonably fast, and strerror
+ isn't needed very often.
+
+ strerror_r (when available) could be used, it might be a touch faster
+ than a frame and a mutex, though there's probably not much
+ difference. */
+
+SCM_DEFINE (scm_strerror, "strerror", 1, 0, 0,
+ (SCM err),
+ "Return the Unix error message corresponding to @var{err}, which\n"
+ "must be an integer value.")
+#define FUNC_NAME s_scm_strerror
+{
+ SCM ret;
+ scm_frame_begin (0);
+ scm_i_frame_pthread_mutex_lock (&scm_i_misc_mutex);
+
+ ret = scm_from_locale_string (SCM_I_STRERROR (scm_to_int (err)));
+
+ scm_frame_end ();
+ return ret;
+}
+#undef FUNC_NAME
+
+SCM_GLOBAL_SYMBOL (scm_system_error_key, "system-error");
+void
+scm_syserror (const char *subr)
+{
+ SCM err = scm_from_int (SCM_I_ERRNO ());
+ scm_error (scm_system_error_key,
+ subr,
+ "~A",
+ scm_cons (scm_strerror (err), SCM_EOL),
+ scm_cons (err, SCM_EOL));
+}
+
+void
+scm_syserror_msg (const char *subr, const char *message, SCM args, int eno)
+{
+ scm_error (scm_system_error_key,
+ subr,
+ message,
+ args,
+ scm_cons (scm_from_int (eno), SCM_EOL));
+}
+
+SCM_GLOBAL_SYMBOL (scm_num_overflow_key, "numerical-overflow");
+void
+scm_num_overflow (const char *subr)
+{
+ scm_error (scm_num_overflow_key,
+ subr,
+ "Numerical overflow",
+ SCM_BOOL_F,
+ SCM_BOOL_F);
+}
+
+SCM_GLOBAL_SYMBOL (scm_out_of_range_key, "out-of-range");
+void
+scm_out_of_range (const char *subr, SCM bad_value)
+{
+ scm_error (scm_out_of_range_key,
+ subr,
+ "Value out of range: ~S",
+ scm_list_1 (bad_value),
+ scm_list_1 (bad_value));
+}
+
+void
+scm_out_of_range_pos (const char *subr, SCM bad_value, SCM pos)
+{
+ scm_error (scm_out_of_range_key,
+ subr,
+ "Argument ~A out of range: ~S",
+ scm_list_2 (pos, bad_value),
+ scm_list_1 (bad_value));
+}
+
+
+SCM_GLOBAL_SYMBOL (scm_args_number_key, "wrong-number-of-args");
+void
+scm_wrong_num_args (SCM proc)
+{
+ scm_error (scm_args_number_key,
+ NULL,
+ "Wrong number of arguments to ~A",
+ scm_list_1 (proc),
+ SCM_BOOL_F);
+}
+
+
+void
+scm_error_num_args_subr (const char *subr)
+{
+ scm_error (scm_args_number_key,
+ NULL,
+ "Wrong number of arguments to ~A",
+ scm_list_1 (scm_from_locale_string (subr)),
+ SCM_BOOL_F);
+}
+
+
+SCM_GLOBAL_SYMBOL (scm_arg_type_key, "wrong-type-arg");
+void
+scm_wrong_type_arg (const char *subr, int pos, SCM bad_value)
+{
+ scm_error (scm_arg_type_key,
+ subr,
+ (pos == 0) ? "Wrong type: ~S"
+ : "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));
+}
+
+void
+scm_wrong_type_arg_msg (const char *subr, int pos, SCM bad_value, const char *szMessage)
+{
+ SCM msg = scm_from_locale_string (szMessage);
+ if (pos == 0)
+ {
+ scm_error (scm_arg_type_key,
+ subr, "Wrong type (expecting ~A): ~S",
+ scm_list_2 (msg, bad_value),
+ scm_list_1 (bad_value));
+ }
+ else
+ {
+ scm_error (scm_arg_type_key,
+ subr,
+ "Wrong type argument in position ~A (expecting ~A): ~S",
+ scm_list_3 (scm_from_int (pos), msg, bad_value),
+ scm_list_1 (bad_value));
+ }
+}
+
+
+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)
+{
+ scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F);
+}
+
+void
+scm_init_error ()
+{
+#include "libguile/cpp_err_symbols.c"
+#include "libguile/error.x"
+}
+
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/