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Make thread names useful in a debugger

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Associate the name with the system thread, so that debuggers
can see it. This is currently only implemented for Linux, using
prctl.

https://bugzilla.gnome.org/show_bug.cgi?id=660635
This commit is contained in:
Matthias Clasen 2011-10-02 09:27:08 -04:00
parent 0d1a92ca3d
commit 1909d2398a
5 changed files with 22 additions and 1 deletions
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1
configure.ac
View File

@ -907,6 +907,7 @@ AC_CHECK_HEADERS([sys/vfs.h sys/mount.h sys/vmount.h sys/statfs.h sys/statvfs.h]
AC_CHECK_HEADERS([mntent.h sys/mnttab.h sys/vfstab.h sys/mntctl.h sys/sysctl.h fstab.h]) AC_CHECK_HEADERS([mntent.h sys/mnttab.h sys/vfstab.h sys/mntctl.h sys/sysctl.h fstab.h])
AC_CHECK_HEADERS([sys/uio.h sys/mkdev.h]) AC_CHECK_HEADERS([sys/uio.h sys/mkdev.h])
AC_CHECK_HEADERS([linux/magic.h]) AC_CHECK_HEADERS([linux/magic.h])
AC_CHECK_HEADERS([sys/prctl.h])
# check for structure fields # check for structure fields
AC_CHECK_MEMBERS([struct stat.st_mtimensec, struct stat.st_mtim.tv_nsec, struct stat.st_atimensec, struct stat.st_atim.tv_nsec, struct stat.st_ctimensec, struct stat.st_ctim.tv_nsec]) AC_CHECK_MEMBERS([struct stat.st_mtimensec, struct stat.st_mtim.tv_nsec, struct stat.st_atimensec, struct stat.st_atim.tv_nsec, struct stat.st_ctimensec, struct stat.st_ctim.tv_nsec])

12
glib/gthread-posix.c
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@ -63,7 +63,9 @@
#ifdef HAVE_SCHED_H #ifdef HAVE_SCHED_H
#include <sched.h> #include <sched.h>
#endif #endif
#ifdef HAVE_SYS_PRCTL_H
#include <sys/prctl.h>
#endif
static void static void
g_thread_abort (gint status, g_thread_abort (gint status,
@ -1047,5 +1049,13 @@ g_system_thread_equal (gpointer thread1,
return (pthread_equal (*(pthread_t*)thread1, *(pthread_t*)thread2) != 0); return (pthread_equal (*(pthread_t*)thread1, *(pthread_t*)thread2) != 0);
} }
void
g_system_thread_set_name (const gchar *name)
{
#ifdef HAVE_SYS_PRCTL_H
prctl (PR_SET_NAME, name, 0, 0, 0, 0);
#endif
}
/* {{{1 Epilogue */ /* {{{1 Epilogue */
/* vim:set foldmethod=marker: */ /* vim:set foldmethod=marker: */

6
glib/gthread-win32.c
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@ -621,6 +621,12 @@ g_system_thread_equal (gpointer thread1,
return ((GSystemThread*)thread1)->dummy_pointer == ((GSystemThread*)thread2)->dummy_pointer; return ((GSystemThread*)thread1)->dummy_pointer == ((GSystemThread*)thread2)->dummy_pointer;
} }
void
g_system_thread_set_name (const gchar *name)
{
/* FIXME: implement */
}
/* {{{1 SRWLock and CONDITION_VARIABLE emulation (for Windows XP) */ /* {{{1 SRWLock and CONDITION_VARIABLE emulation (for Windows XP) */
static CRITICAL_SECTION g_thread_xp_lock; static CRITICAL_SECTION g_thread_xp_lock;

3
glib/gthread.c
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@ -1131,6 +1131,9 @@ g_thread_create_proxy (gpointer data)
g_assert (data); g_assert (data);
if (thread->name)
g_system_thread_set_name (thread->name);
/* This has to happen before G_LOCK, as that might call g_thread_self */ /* This has to happen before G_LOCK, as that might call g_thread_self */
g_private_set (&g_thread_specific_private, data); g_private_set (&g_thread_specific_private, data);

1
glib/gthreadprivate.h
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@ -46,6 +46,7 @@ G_GNUC_INTERNAL gboolean g_system_thread_equal (gpointer thread1,
gpointer thread2); gpointer thread2);
G_GNUC_INTERNAL void g_system_thread_exit (void); G_GNUC_INTERNAL void g_system_thread_exit (void);
G_GNUC_INTERNAL void g_system_thread_set_name (const gchar *name);
G_GNUC_INTERNAL GSystemThread zero_thread; G_GNUC_INTERNAL GSystemThread zero_thread;
G_GNUC_INTERNAL GMutex g_once_mutex; G_GNUC_INTERNAL GMutex g_once_mutex;