* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
- * GLib at ftp://ftp.gtk.org/pub/gtk/.
+ * GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
-/*
- * MT safe ; except for g_on_error_stack_trace, but who wants thread safety
+/*
+ * MT safe ; except for g_on_error_stack_trace, but who wants thread safety
* then
*/
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
+#include "config.h"
+#include "glibconfig.h"
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
-#include "glib.h"
-#include "gprintfint.h"
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#include <sys/times.h>
#endif
#include <sys/types.h>
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
#include <time.h>
#ifdef HAVE_UNISTD_H
#include <sys/select.h>
#endif /* HAVE_SYS_SELECT_H */
-#ifdef STDC_HEADERS
#include <string.h> /* for bzero on BSD systems */
-#endif
#ifdef G_OS_WIN32
-# define STRICT /* Strict typing, please */
+# define STRICT /* Strict typing, please */
+# define _WIN32_WINDOWS 0x0401 /* to get IsDebuggerPresent */
# include <windows.h>
# undef STRICT
#endif
+#include "gbacktrace.h"
+
+#include "gtypes.h"
+#include "gmain.h"
+#include "gprintfint.h"
+#include "gutils.h"
+
+
#ifndef NO_FD_SET
# define SELECT_MASK fd_set
#else
extern volatile gboolean glib_on_error_halt;
volatile gboolean glib_on_error_halt = TRUE;
+/**
+ * g_on_error_query:
+ * @prg_name: the program name, needed by <command>gdb</command>
+ * for the [S]tack trace option. If @prg_name is %NULL, g_get_prgname()
+ * is called to get the program name (which will work correctly if
+ * gdk_init() or gtk_init() has been called)
+ *
+ * Prompts the user with
+ * <computeroutput>[E]xit, [H]alt, show [S]tack trace or [P]roceed</computeroutput>.
+ * This function is intended to be used for debugging use only.
+ * The following example shows how it can be used together with
+ * the g_log() functions.
+ *
+ * |[
+ * #include <glib.h>
+ *
+ * static void
+ * log_handler (const gchar *log_domain,
+ * GLogLevelFlags log_level,
+ * const gchar *message,
+ * gpointer user_data)
+ * {
+ * g_log_default_handler (log_domain, log_level, message, user_data);
+ *
+ * g_on_error_query (MY_PROGRAM_NAME);
+ * }
+ *
+ * int
+ * main (int argc, char *argv[])
+ * {
+ * g_log_set_handler (MY_LOG_DOMAIN,
+ * G_LOG_LEVEL_WARNING |
+ * G_LOG_LEVEL_ERROR |
+ * G_LOG_LEVEL_CRITICAL,
+ * log_handler,
+ * NULL);
+ * /* ... */
+ * ]|
+ *
+ * If [E]xit is selected, the application terminates with a call
+ * to <literal>_exit(0)</literal>.
+ *
+ * If [S]tack trace is selected, g_on_error_stack_trace() is called.
+ * This invokes <command>gdb</command>, which attaches to the current
+ * process and shows a stack trace. The prompt is then shown again.
+ *
+ * If [P]roceed is selected, the function returns.
+ *
+ * This function may cause different actions on non-UNIX platforms.
+ */
void
g_on_error_query (const gchar *prg_name)
{
#ifndef G_OS_WIN32
- static const gchar *query1 = "[E]xit, [H]alt";
- static const gchar *query2 = ", show [S]tack trace";
- static const gchar *query3 = " or [P]roceed";
+ static const gchar * const query1 = "[E]xit, [H]alt";
+ static const gchar * const query2 = ", show [S]tack trace";
+ static const gchar * const query3 = " or [P]roceed";
gchar buf[16];
if (!prg_name)
prg_name = g_get_prgname ();
-
+
retry:
-
+
if (prg_name)
_g_fprintf (stdout,
- "%s (pid:%u): %s%s%s: ",
- prg_name,
- (guint) getpid (),
- query1,
- query2,
- query3);
+ "%s (pid:%u): %s%s%s: ",
+ prg_name,
+ (guint) getpid (),
+ query1,
+ query2,
+ query3);
else
_g_fprintf (stdout,
- "(process:%u): %s%s: ",
- (guint) getpid (),
- query1,
- query3);
+ "(process:%u): %s%s: ",
+ (guint) getpid (),
+ query1,
+ query3);
fflush (stdout);
-
+
if (isatty(0) && isatty(1))
- fgets (buf, 8, stdin);
+ fgets (buf, 8, stdin);
else
strcpy (buf, "E\n");
&& buf[1] == '\n')
_exit (0);
else if ((buf[0] == 'P' || buf[0] == 'p')
- && buf[1] == '\n')
+ && buf[1] == '\n')
return;
else if (prg_name
- && (buf[0] == 'S' || buf[0] == 's')
- && buf[1] == '\n')
+ && (buf[0] == 'S' || buf[0] == 's')
+ && buf[1] == '\n')
{
g_on_error_stack_trace (prg_name);
goto retry;
}
else if ((buf[0] == 'H' || buf[0] == 'h')
- && buf[1] == '\n')
+ && buf[1] == '\n')
{
while (glib_on_error_halt)
- ;
+ ;
glib_on_error_halt = TRUE;
return;
}
#else
if (!prg_name)
prg_name = g_get_prgname ();
-
+
MessageBox (NULL, "g_on_error_query called, program terminating",
- (prg_name && *prg_name) ? prg_name : NULL,
- MB_OK|MB_ICONERROR);
+ (prg_name && *prg_name) ? prg_name : NULL,
+ MB_OK|MB_ICONERROR);
_exit(0);
#endif
}
+/**
+ * g_on_error_stack_trace:
+ * @prg_name: the program name, needed by <command>gdb</command>
+ * for the [S]tack trace option.
+ *
+ * Invokes <command>gdb</command>, which attaches to the current
+ * process and shows a stack trace. Called by g_on_error_query()
+ * when the [S]tack trace option is selected. You can get the current
+ * process's "program name" with g_get_prgname(), assuming that you
+ * have called gtk_init() or gdk_init().
+ *
+ * This function may cause different actions on non-UNIX platforms.
+ */
void
g_on_error_stack_trace (const gchar *prg_name)
{
-#ifdef G_OS_UNIX
+#if defined(G_OS_UNIX) || defined(G_OS_BEOS)
pid_t pid;
gchar buf[16];
gchar *args[4] = { "gdb", NULL, NULL, NULL };
+ int status;
if (!prg_name)
return;
perror ("unable to fork gdb");
return;
}
-
- while (glib_on_error_halt)
- ;
- glib_on_error_halt = TRUE;
+
+ waitpid (pid, &status, 0);
#else
- abort ();
+ if (IsDebuggerPresent ())
+ G_BREAKPOINT ();
+ else
+ abort ();
#endif
}
SELECT_MASK fdset;
SELECT_MASK readset;
struct timeval tv;
- int sel, index, state;
+ int sel, idx, state;
char buffer[256];
char c;
write (in_fd[1], "p x = 0\n", 8);
write (in_fd[1], "quit\n", 5);
- index = 0;
+ idx = 0;
state = 0;
while (1)
if (c == '#')
{
state = 1;
- index = 0;
- buffer[index++] = c;
+ idx = 0;
+ buffer[idx++] = c;
}
break;
case 1:
- buffer[index++] = c;
+ buffer[idx++] = c;
if ((c == '\n') || (c == '\r'))
{
- buffer[index] = 0;
+ buffer[idx] = 0;
_g_fprintf (stdout, "%s", buffer);
state = 0;
- index = 0;
+ idx = 0;
}
break;
default:
projects / platform / upstream / glib.git / blobdiff