/* Definitions for complaint handling during symbol reading in GDB.
- Copyright 1990, 1991, 1992, 1995, 1998, 2000, 2002 Free Software
- Foundation, Inc.
+ Copyright (C) 1990-2022 Free Software Foundation, Inc.
This file is part of GDB.
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 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (COMPLAINTS_H)
#define COMPLAINTS_H
-/* Opaque object used to track the number of complaints of a
- particular category. */
-struct complaints;
+#include <unordered_set>
-/* Predefined categories. */
-extern struct complaints *symfile_complaints;
+/* Helper for complaint. */
+extern void complaint_internal (const char *fmt, ...)
+ ATTRIBUTE_PRINTF (1, 2);
-/* Register a complaint. */
-extern void complaint (struct complaints **complaints, const char *fmt,
- ...) ATTR_FORMAT (printf, 2, 3);
-extern void internal_complaint (struct complaints **complaints,
- const char *file, int line, const char *fmt,
- ...) ATTR_FORMAT (printf, 4, 5);
+/* This controls whether complaints are emitted. */
+
+extern int stop_whining;
+
+/* Register a complaint. This is a macro around complaint_internal to
+ avoid computing complaint's arguments when complaints are disabled.
+ Running FMT via gettext [i.e., _(FMT)] can be quite expensive, for
+ example. */
+#define complaint(FMT, ...) \
+ do \
+ { \
+ if (stop_whining > 0) \
+ complaint_internal (FMT, ##__VA_ARGS__); \
+ } \
+ while (0)
/* Clear out / initialize all complaint counters that have ever been
- incremented. If LESS_VERBOSE is 1, be less verbose about
- successive complaints, since the messages are appearing all
- together during a command that is reporting a contiguous block of
- complaints (rather than being interleaved with other messages). If
- noisy is 1, we are in a noisy command, and our caller will print
- enough context for the user to figure it out. */
+ incremented. */
+
+extern void clear_complaints ();
+
+/* A class that can handle calls to complaint from multiple threads.
+ When this is instantiated, it hooks into the complaint mechanism,
+ so the 'complaint' macro can continue to be used. When it is
+ destroyed, it issues all the complaints that have been stored. It
+ should only be instantiated in the main thread. */
+
+class complaint_interceptor
+{
+public:
+
+ complaint_interceptor ();
+ ~complaint_interceptor ();
+
+ DISABLE_COPY_AND_ASSIGN (complaint_interceptor);
+
+private:
+
+ /* The issued complaints. */
+ std::unordered_set<std::string> m_complaints;
+
+ /* The saved value of deprecated_warning_hook. */
+ void (*m_saved_warning_hook) (const char *, va_list)
+ ATTRIBUTE_FPTR_PRINTF (1,0);
-extern void clear_complaints (struct complaints **complaints,
- int less_verbose, int noisy);
+ /* A helper function that is used by the 'complaint' implementation
+ to issue a complaint. */
+ static void issue_complaint (const char *, va_list)
+ ATTRIBUTE_PRINTF (1, 0);
+ /* This object. Used by the static callback function. */
+ static complaint_interceptor *g_complaint_interceptor;
+};
#endif /* !defined (COMPLAINTS_H) */
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