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Diffstat (limited to 'sysdeps/l4/pt-block.c')
-rw-r--r--sysdeps/l4/pt-block.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/sysdeps/l4/pt-block.c b/sysdeps/l4/pt-block.c
index 050c694..69e1d35 100644
--- a/sysdeps/l4/pt-block.c
+++ b/sysdeps/l4/pt-block.c
@@ -17,13 +17,31 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#include <l4/l4.h>
+#include <l4.h>
#include <pt-internal.h>
+#include <hurd/stddef.h>
+
/* Block THREAD. */
void
__pthread_block (struct __pthread *thread)
{
- L4_Receive (L4_anylocalthread);
+ debug (5, "%x.%x/%x blocking",
+ l4_thread_no (thread->threadid), l4_version (thread->threadid),
+ thread->threadid);
+
+ l4_accept (L4_UNTYPED_WORDS_ACCEPTOR);
+ l4_msg_tag_t tag = l4_receive (l4_anythread);
+ if (l4_ipc_failed (tag))
+ {
+ debug (1, "%x.%x failed to block: %d, offset: %x",
+ l4_thread_no (l4_myself ()), l4_version (l4_myself ()),
+ (l4_error_code () >> 1) & 0x7,
+ l4_error_code () >> 4);
+ assert (! l4_ipc_failed (tag));
+ }
+ else
+ debug (5, "%x.%x unblocked",
+ l4_thread_no (thread->threadid), l4_version (thread->threadid));
}