6c93228718
I had to shuffle a bit the order of initialization since we were creating a folder for the crash logs, as well as one for the backups a bit too early. So now I move errors_init() after configuration folder creation/migration, and I create both these folders in this function (especially since gimp_init_signal_handlers() is run even earlier). For this later reason, I also check for backtrace_file and backup_path being allocated in gimp_eek() since it is also possible for signals happening before errors_init(). In such a case, we will simply bypass the GUI error handler (terminal error handler still possible) and the backup (anyway there is nothing to backup at this point). I could also try to create these 2 directories at the last second, when needed. But since we are trying to do the strict minimum during crash handling, it is better to do whatever can be done earlier.
442 lines
14 KiB
C
442 lines
14 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#define _GNU_SOURCE /* need the POSIX signal API */
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <gio/gio.h>
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#include <glib/gstdio.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libgimpbase/gimpbase.h"
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#include "core/core-types.h"
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#include "core/gimp.h"
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#include "core/gimpdrawable.h"
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#include "core/gimpimage.h"
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#include "core/gimpitem.h"
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#include "core/gimpparamspecs.h"
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#include "pdb/gimppdb.h"
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#include "errors.h"
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#ifdef G_OS_WIN32
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#include <windows.h>
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#endif
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/* private variables */
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static Gimp *the_errors_gimp = NULL;
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static gboolean use_debug_handler = FALSE;
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static GimpStackTraceMode stack_trace_mode = GIMP_STACK_TRACE_QUERY;
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static gchar *full_prog_name = NULL;
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static gchar *backtrace_file = NULL;
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static gchar *backup_path = NULL;
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/* local function prototypes */
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static void gimp_message_log_func (const gchar *log_domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data);
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static void gimp_error_log_func (const gchar *domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data) G_GNUC_NORETURN;
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static G_GNUC_NORETURN void gimp_eek (const gchar *reason,
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const gchar *message,
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gboolean use_handler);
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/* public functions */
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void
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errors_init (Gimp *gimp,
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const gchar *_full_prog_name,
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gboolean _use_debug_handler,
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GimpStackTraceMode _stack_trace_mode,
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const gchar *_backtrace_file)
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{
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const gchar * const log_domains[] =
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{
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"Gimp",
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"Gimp-Actions",
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"Gimp-Base",
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"Gimp-Composite",
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"Gimp-Config",
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"Gimp-Core",
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"Gimp-Dialogs",
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"Gimp-Display",
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"Gimp-File",
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"Gimp-GEGL",
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"Gimp-GUI",
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"Gimp-Menus",
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"Gimp-Operations",
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"Gimp-PDB",
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"Gimp-Paint",
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"Gimp-Paint-Funcs",
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"Gimp-Plug-In",
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"Gimp-Text",
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"Gimp-Tools",
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"Gimp-Vectors",
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"Gimp-Widgets",
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"Gimp-XCF",
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"LibGimpBase",
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"LibGimpColor",
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"LibGimpConfig",
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"LibGimpMath",
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"LibGimpModule",
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"LibGimpThumb",
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"LibGimpWidgets"
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};
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gint i;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (_full_prog_name != NULL);
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g_return_if_fail (full_prog_name == NULL);
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#ifdef GIMP_UNSTABLE
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g_printerr ("This is a development version of GIMP. "
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"Debug messages may appear here.\n\n");
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#endif /* GIMP_UNSTABLE */
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the_errors_gimp = gimp;
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use_debug_handler = _use_debug_handler ? TRUE : FALSE;
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stack_trace_mode = _stack_trace_mode;
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full_prog_name = g_strdup (_full_prog_name);
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/* Create parent directories for both the crash and backup files. */
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backtrace_file = g_path_get_dirname (_backtrace_file);
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backup_path = g_build_filename (gimp_directory (), "backups", NULL);
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g_mkdir_with_parents (backtrace_file, S_IRUSR | S_IWUSR | S_IXUSR);
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g_free (backtrace_file);
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backtrace_file = g_strdup (_backtrace_file);
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g_mkdir_with_parents (backup_path, S_IRUSR | S_IWUSR | S_IXUSR);
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g_free (backup_path);
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backup_path = g_build_filename (gimp_directory (), "backups",
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"backup-XXX.xcf", NULL);
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for (i = 0; i < G_N_ELEMENTS (log_domains); i++)
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g_log_set_handler (log_domains[i],
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G_LOG_LEVEL_WARNING |
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G_LOG_LEVEL_MESSAGE |
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G_LOG_LEVEL_CRITICAL,
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gimp_message_log_func, gimp);
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g_log_set_handler ("GEGL",
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G_LOG_LEVEL_WARNING |
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G_LOG_LEVEL_MESSAGE |
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G_LOG_LEVEL_CRITICAL,
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gimp_message_log_func, gimp);
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g_log_set_handler (NULL,
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G_LOG_LEVEL_ERROR | G_LOG_FLAG_FATAL,
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gimp_error_log_func, gimp);
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}
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void
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errors_exit (void)
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{
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the_errors_gimp = NULL;
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if (backtrace_file)
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g_free (backtrace_file);
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if (full_prog_name)
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g_free (full_prog_name);
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if (backup_path)
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g_free (backup_path);
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}
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void
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gimp_fatal_error (const gchar *message)
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{
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gimp_eek ("fatal error", message, TRUE);
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}
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void
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gimp_terminate (const gchar *message)
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{
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gimp_eek ("terminated", message, use_debug_handler);
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}
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/* private functions */
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static void
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gimp_message_log_func (const gchar *log_domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data)
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{
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Gimp *gimp = data;
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GimpCoreConfig *config = gimp->config;
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const gchar *msg_domain = NULL;
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GimpMessageSeverity severity = GIMP_MESSAGE_WARNING;
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gboolean gui_message = TRUE;
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GimpDebugPolicy debug_policy;
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/* All GIMP messages are processed under the same domain, but
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* we need to keep the log domain information for third party
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* messages.
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*/
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if (! g_str_has_prefix (log_domain, "Gimp") &&
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! g_str_has_prefix (log_domain, "LibGimp"))
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msg_domain = log_domain;
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/* If debug policy requires it, WARNING and CRITICAL errors must be
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* routed for appropriate debugging.
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*/
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g_object_get (G_OBJECT (config),
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"debug-policy", &debug_policy,
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NULL);
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switch (flags & G_LOG_LEVEL_MASK)
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{
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case G_LOG_LEVEL_WARNING:
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severity = GIMP_MESSAGE_BUG_WARNING;
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if (debug_policy > GIMP_DEBUG_POLICY_WARNING)
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gui_message = FALSE;
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break;
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case G_LOG_LEVEL_CRITICAL:
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severity = GIMP_MESSAGE_BUG_CRITICAL;
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if (debug_policy > GIMP_DEBUG_POLICY_CRITICAL)
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gui_message = FALSE;
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break;
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}
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if (gimp && gui_message)
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{
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gimp_show_message (gimp, NULL, severity, msg_domain, message);
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}
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else
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{
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const gchar *reason = "Message";
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gimp_enum_get_value (GIMP_TYPE_MESSAGE_SEVERITY, severity,
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NULL, NULL, &reason, NULL);
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g_printerr ("%s: %s-%s: %s\n",
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gimp_filename_to_utf8 (full_prog_name),
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log_domain, reason, message);
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}
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}
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static void
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gimp_error_log_func (const gchar *domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data)
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{
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gimp_fatal_error (message);
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}
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static void
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gimp_eek (const gchar *reason,
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const gchar *message,
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gboolean use_handler)
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{
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GimpCoreConfig *config = the_errors_gimp->config;
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gboolean eek_handled = FALSE;
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GimpDebugPolicy debug_policy;
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GList *iter;
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gint num_idx;
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gint i = 0;
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/* GIMP has 2 ways to handle termination signals and fatal errors: one
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* is the stack trace mode which is set at start as command line
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* option --stack-trace-mode, this won't change for the length of the
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* session and outputs a trace in terminal; the other is set in
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* preferences, outputs a trace in a GUI and can change anytime during
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* the session.
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* The GUI backtrace has priority if it is set.
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*/
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g_object_get (G_OBJECT (config),
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"debug-policy", &debug_policy,
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NULL);
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/* Let's just always output on stdout at least so that there is a
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* trace if the rest fails. */
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g_printerr ("%s: %s: %s\n", gimp_filename_to_utf8 (full_prog_name),
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reason, message);
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#if ! defined (G_OS_WIN32) || defined (HAVE_EXCHNDL)
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if (use_handler)
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{
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#ifndef GIMP_CONSOLE_COMPILATION
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if (debug_policy != GIMP_DEBUG_POLICY_NEVER &&
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! the_errors_gimp->no_interface &&
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backtrace_file)
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{
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FILE *fd;
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gboolean has_backtrace = TRUE;
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/* If GUI backtrace enabled (it is disabled by default), it
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* takes precedence over the command line argument.
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*/
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#ifdef G_OS_WIN32
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const gchar *gimpdebug = "gimp-debug-tool-" GIMP_TOOL_VERSION ".exe";
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#elif defined (PLATFORM_OSX)
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const gchar *gimpdebug = "gimp-debug-tool-" GIMP_TOOL_VERSION;
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#else
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const gchar *gimpdebug = LIBEXECDIR "/gimp-debug-tool-" GIMP_TOOL_VERSION;
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#endif
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gchar *args[7] = { (gchar *) gimpdebug, full_prog_name, NULL,
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(gchar *) reason, (gchar *) message,
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backtrace_file, NULL };
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gchar pid[16];
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g_snprintf (pid, 16, "%u", (guint) getpid ());
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args[2] = pid;
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#ifndef G_OS_WIN32
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/* On Win32, the trace has already been processed by ExcHnl
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* and is waiting for us in a text file.
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*/
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fd = g_fopen (backtrace_file, "w");
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has_backtrace = gimp_print_stack_trace ((const gchar *) full_prog_name,
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fd, NULL);
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fclose (fd);
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#endif
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/* We don't care about any return value. If it fails, too
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* bad, we just won't have any stack trace.
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* We still need to use the sync() variant because we have
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* to keep GIMP up long enough for the debugger to get its
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* trace.
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*/
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if (has_backtrace &&
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g_file_test (backtrace_file, G_FILE_TEST_IS_REGULAR) &&
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g_spawn_async (NULL, args, NULL,
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G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL | G_SPAWN_STDOUT_TO_DEV_NULL,
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NULL, NULL, NULL, NULL))
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eek_handled = TRUE;
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}
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#endif /* !GIMP_CONSOLE_COMPILATION */
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#ifndef G_OS_WIN32
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if (! eek_handled)
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{
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switch (stack_trace_mode)
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{
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case GIMP_STACK_TRACE_NEVER:
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break;
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case GIMP_STACK_TRACE_QUERY:
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{
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sigset_t sigset;
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sigemptyset (&sigset);
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sigprocmask (SIG_SETMASK, &sigset, NULL);
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gimp_on_error_query ((const gchar *) full_prog_name);
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}
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break;
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case GIMP_STACK_TRACE_ALWAYS:
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{
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sigset_t sigset;
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sigemptyset (&sigset);
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sigprocmask (SIG_SETMASK, &sigset, NULL);
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gimp_print_stack_trace ((const gchar *) full_prog_name,
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stdout, NULL);
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}
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break;
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default:
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break;
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}
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}
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#endif /* ! G_OS_WIN32 */
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}
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#endif /* ! G_OS_WIN32 || HAVE_EXCHNDL */
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#if defined (G_OS_WIN32) && ! defined (GIMP_CONSOLE_COMPILATION)
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/* g_on_error_* don't do anything reasonable on Win32. */
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if (! eek_handled && ! the_errors_gimp->no_interface)
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MessageBox (NULL, g_strdup_printf ("%s: %s", reason, message),
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full_prog_name, MB_OK|MB_ICONERROR);
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#endif
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/* Let's try to back-up all unsaved images!
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* It is not 100%: when I tested with various bugs created on purpose,
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* I had cases where saving failed. I am not sure if this is because
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* of some memory management along the way to XCF saving or some other
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* messed up state of GIMP, but this is normal not to expect too much
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* during a crash.
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* Nevertheless in various test cases, I had successful backups XCF of
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* the work in progress. Yeah!
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*/
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if (backup_path)
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{
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/* The index of 'XXX' in backup_path string. */
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num_idx = strlen (backup_path) - 7;
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iter = gimp_get_image_iter (the_errors_gimp);
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for (; iter && i < 1000; iter = iter->next)
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{
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GimpImage *image = iter->data;
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GimpItem *item;
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if (! gimp_image_is_dirty (image))
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continue;
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item = GIMP_ITEM (gimp_image_get_active_drawable (image));
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/* This is a trick because we want to avoid any memory
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* allocation when the process is abnormally terminated.
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* We just assume that you'll never have more than 1000 images
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* open (which is already far fetched).
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*/
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backup_path[num_idx + 2] = '0' + (i % 10);
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backup_path[num_idx + 1] = '0' + ((i/10) % 10);
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backup_path[num_idx] = '0' + ((i/100) % 10);
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/* Saving. */
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gimp_pdb_execute_procedure_by_name (the_errors_gimp->pdb,
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gimp_get_user_context (the_errors_gimp),
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NULL, NULL,
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"gimp-xcf-save",
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GIMP_TYPE_INT32, 0,
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GIMP_TYPE_IMAGE_ID, gimp_image_get_ID (image),
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GIMP_TYPE_DRAWABLE_ID, gimp_item_get_ID (item),
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G_TYPE_STRING, backup_path,
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G_TYPE_STRING, backup_path,
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G_TYPE_NONE);
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i++;
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}
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}
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exit (EXIT_FAILURE);
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}
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