From b1755462ab344ff758c3a1e6ae0d10a729d96d1b Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Tue, 15 May 2007 16:53:46 +0000
Subject: Do not hold self-references.  This then avoids the problem of having
 to ensure that we only drop our self-reference exactly once.

To maintain the guarantee that an object won't go out of scope
unexpectedly while one of its event handlers is being called, the
event-calling functions now automatically obtain and drop extra
references.
---
 src/include/gpxe/job.h | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

(limited to 'src/include/gpxe/job.h')

diff --git a/src/include/gpxe/job.h b/src/include/gpxe/job.h
index 2b33408fa..28885869c 100644
--- a/src/include/gpxe/job.h
+++ b/src/include/gpxe/job.h
@@ -104,14 +104,24 @@ intf_to_job ( struct interface *intf ) {
 }
 
 /**
- * Get destination job control interface
+ * Get reference to destination job control interface
  *
  * @v job		Job control interface
  * @ret dest		Destination interface
  */
 static inline __attribute__ (( always_inline )) struct job_interface *
-job_dest ( struct job_interface *job ) {
-	return intf_to_job ( job->intf.dest );
+job_get_dest ( struct job_interface *job ) {
+	return intf_to_job ( intf_get ( job->intf.dest ) );
+}
+
+/**
+ * Drop reference to job control interface
+ *
+ * @v job		Job control interface
+ */
+static inline __attribute__ (( always_inline )) void
+job_put ( struct job_interface *job ) {
+	intf_put ( &job->intf );
 }
 
 /**
-- 
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