-/* Copyright (C) 2001 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, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 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 "libguile/_scm.h"
-
-#include "libguile/deprecation.h"
-#include "libguile/hashtab.h"
-#include "libguile/strings.h"
-#include "libguile/ports.h"
-
-\f
-
-#if SCM_DEBUG_DEPRECATED == 0
-
-/* This is either a boolean (when a summary should be printed) or a
- hashtab (when detailed warnings shouold be printed).
-*/
-SCM issued_msgs;
-
-void
-scm_c_issue_deprecation_warning (const char *msg)
-{
- if (SCM_BOOLP (issued_msgs))
- issued_msgs = SCM_BOOL_T;
- else
- scm_issue_deprecation_warning (SCM_LIST1 (scm_makfrom0str (msg)));
-}
-
-SCM_DEFINE(scm_issue_deprecation_warning,
- "issue-deprecation-warning", 0, 0, 1,
- (SCM msgs),
- "Output @var{msgs} to @code{(current-error-port)} when this "
- "is the first call to @code{issue-deprecation-warning} with "
- "this specific @var{msg}. Do nothing otherwise. "
- "The argument @var{msgs} should be a list of strings; "
- "they are printed in turn, each one followed by a newline.")
-#define FUNC_NAME s_scm_issue_deprecation_warning
-{
- if (SCM_BOOLP (issued_msgs))
- issued_msgs = SCM_BOOL_T;
- else
- {
- SCM handle = scm_hash_create_handle_x (issued_msgs, msgs, SCM_BOOL_F);
- if (SCM_CDR (handle) == SCM_BOOL_F)
- {
- while (SCM_CONSP (msgs))
- {
- scm_display (SCM_CAR (msgs), scm_current_error_port ());
- scm_newline (scm_current_error_port ());
- msgs = SCM_CDR (msgs);
- }
- SCM_SETCDR (handle, SCM_BOOL_T);
- }
- }
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-static void
-print_deprecation_summary (void)
-{
- if (issued_msgs == SCM_BOOL_T)
- {
- fputs ("\n"
- "Some deprecated features have been used. Set the environment\n"
- "variable GUILE_WARN_DEPRECATED to \"detailed\" and rerun the\n"
- "program to get more information. Set it to \"no\" to suppress\n"
- "this message.\n", stderr);
- }
-}
-
-#endif
-
-SCM_DEFINE(scm_include_deprecated_features,
- "include-deprecated-features", 0, 0, 0,
- (),
- "Return @code{#t} iff deprecated features should be included\n"
- "in public interfaces.")
-#define FUNC_NAME s_scm_include_deprecated_features
-{
-#if SCM_DEBUG_DEPRECATED == 0
- return SCM_BOOL_T;
-#else
- return SCM_BOOL_F;
-#endif
-}
-#undef FUNC_NAME
-
-
-\f
-
-void
-scm_init_deprecation ()
-{
-#if SCM_DEBUG_DEPRECATED == 0
- const char *level = getenv ("GUILE_WARN_DEPRECATED");
- if (level == NULL)
- level = GUILE_WARN_DEPRECATED_DEFAULT;
- if (!strcmp (level, "detailed"))
- issued_msgs = scm_permanent_object (scm_c_make_hash_table (17));
- else if (!strcmp (level, "no"))
- issued_msgs = SCM_BOOL_F;
- else
- {
- issued_msgs = SCM_BOOL_F;
- atexit (print_deprecation_summary);
- }
-#endif
-#ifndef SCM_MAGIC_SNARFER
-#include "libguile/deprecation.x"
-#endif
-}
-
-/*
- Local Variables:
- c-file-style: "gnu"
- End: */
+/* Copyright (C) 2001, 2006, 2010, 2011 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 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
+ * 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 <string.h>
+#include <stdarg.h>
+
+#include "libguile/_scm.h"
+
+#include "libguile/deprecation.h"
+#include "libguile/strings.h"
+#include "libguile/ports.h"
+
+#include "libguile/private-options.h"
+
+
+/* Windows defines. */
+#ifdef __MINGW32__
+#define vsnprintf _vsnprintf
+#endif
+
+\f
+
+struct issued_warning {
+ struct issued_warning *prev;
+ const char *message;
+};
+
+static scm_i_pthread_mutex_t warn_lock = SCM_I_PTHREAD_MUTEX_INITIALIZER;
+static struct issued_warning *issued_warnings;
+static int print_summary = 0;
+
+void
+scm_c_issue_deprecation_warning (const char *msg)
+{
+ if (!SCM_WARN_DEPRECATED)
+ print_summary = 1;
+ else
+ {
+ struct issued_warning *iw;
+
+ scm_i_pthread_mutex_lock (&warn_lock);
+ for (iw = issued_warnings; iw; iw = iw->prev)
+ if (!strcmp (iw->message, msg))
+ {
+ msg = NULL;
+ break;
+ }
+ if (msg)
+ {
+ msg = strdup (msg);
+ iw = malloc (sizeof (struct issued_warning));
+ if (msg == NULL || iw == NULL)
+ /* Nothing sensible to do if you can't allocate this small
+ amount of memory. */
+ abort ();
+ iw->message = msg;
+ iw->prev = issued_warnings;
+ issued_warnings = iw;
+ }
+ scm_i_pthread_mutex_unlock (&warn_lock);
+
+ /* All this dance is to avoid printing to a port inside a mutex,
+ which could recurse and deadlock. */
+ if (msg)
+ {
+ if (scm_gc_running_p)
+ fprintf (stderr, "%s\n", msg);
+ else
+ {
+ scm_puts (msg, scm_current_warning_port ());
+ scm_newline (scm_current_warning_port ());
+ }
+ }
+ }
+}
+
+void
+scm_c_issue_deprecation_warning_fmt (const char *msg, ...)
+{
+ va_list ap;
+ char buf[512];
+
+ va_start (ap, msg);
+ vsnprintf (buf, 511, msg, ap);
+ va_end (ap);
+ buf[511] = '\0';
+ scm_c_issue_deprecation_warning (buf);
+}
+
+SCM_DEFINE(scm_issue_deprecation_warning,
+ "issue-deprecation-warning", 0, 0, 1,
+ (SCM msgs),
+ "Output @var{msgs} to @code{(current-error-port)} when this "
+ "is the first call to @code{issue-deprecation-warning} with "
+ "this specific @var{msgs}. Do nothing otherwise. "
+ "The argument @var{msgs} should be a list of strings; "
+ "they are printed in turn, each one followed by a newline.")
+#define FUNC_NAME s_scm_issue_deprecation_warning
+{
+ if (!SCM_WARN_DEPRECATED)
+ print_summary = 1;
+ else
+ {
+ SCM nl = scm_from_locale_string ("\n");
+ SCM msgs_nl = SCM_EOL;
+ char *c_msgs;
+ while (scm_is_pair (msgs))
+ {
+ if (!scm_is_null (msgs_nl))
+ msgs_nl = scm_cons (nl, msgs_nl);
+ msgs_nl = scm_cons (SCM_CAR (msgs), msgs_nl);
+ msgs = SCM_CDR (msgs);
+ }
+ msgs_nl = scm_string_append (scm_reverse_x (msgs_nl, SCM_EOL));
+ c_msgs = scm_to_locale_string (msgs_nl);
+ scm_c_issue_deprecation_warning (c_msgs);
+ free (c_msgs);
+ }
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+static void
+print_deprecation_summary (void)
+{
+ if (print_summary)
+ {
+ fputs ("\n"
+ "Some deprecated features have been used. Set the environment\n"
+ "variable GUILE_WARN_DEPRECATED to \"detailed\" and rerun the\n"
+ "program to get more information. Set it to \"no\" to suppress\n"
+ "this message.\n", stderr);
+ }
+}
+
+SCM_DEFINE(scm_include_deprecated_features,
+ "include-deprecated-features", 0, 0, 0,
+ (),
+ "Return @code{#t} iff deprecated features should be included "
+ "in public interfaces.")
+#define FUNC_NAME s_scm_include_deprecated_features
+{
+ return scm_from_bool (SCM_ENABLE_DEPRECATED == 1);
+}
+#undef FUNC_NAME
+
+
+\f
+
+void
+scm_init_deprecation ()
+{
+ const char *level = getenv ("GUILE_WARN_DEPRECATED");
+ if (level == NULL)
+ level = SCM_WARN_DEPRECATED_DEFAULT;
+ if (!strcmp (level, "detailed"))
+ SCM_WARN_DEPRECATED = 1;
+ else if (!strcmp (level, "no"))
+ SCM_WARN_DEPRECATED = 0;
+ else
+ {
+ SCM_WARN_DEPRECATED = 0;
+ atexit (print_deprecation_summary);
+ }
+#include "libguile/deprecation.x"
+}
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+ */
HCoop / bpt / guile.git / blobdiff