--- /dev/null
+/* Copyright (C) 1995,1996,1997,1998,2000,2001, 2004, 2006 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 <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_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)));
+
+ scm_dynwind_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:
+*/
projects / lilypond.git / blobdiff