Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / core / pending.c

diff --git a/qemu/roms/ipxe/src/core/pending.c b/qemu/roms/ipxe/src/core/pending.c
new file mode 100644 (file)
index 0000000..7bb0c2e
--- /dev/null
+++ b/qemu/roms/ipxe/src/core/pending.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <errno.h>
+#include <ipxe/process.h>
+#include <ipxe/timer.h>
+#include <ipxe/pending.h>
+
+/** @file
+ *
+ * Pending operations
+ *
+ */
+
+/** Total count of pending operations */
+int pending_total;
+
+/**
+ * Mark an operation as pending
+ *
+ * @v pending          Pending operation
+ */
+void pending_get ( struct pending_operation *pending ) {
+
+       pending->count++;
+       pending_total++;
+       DBGC ( pending, "PENDING %p incremented to %d (total %d)\n",
+              pending, pending->count, pending_total );
+}
+
+/**
+ * Mark an operation as no longer pending
+ *
+ * @v pending          Pending operation
+ */
+void pending_put ( struct pending_operation *pending ) {
+
+       if ( pending->count ) {
+               pending_total--;
+               pending->count--;
+               DBGC ( pending, "PENDING %p decremented to %d (total %d)\n",
+                      pending, pending->count, pending_total );
+       }
+}