aboutsummaryrefslogtreecommitdiff
path: root/include/block/coroutine_int.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/block/coroutine_int.h')
-rw-r--r--include/block/coroutine_int.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/include/block/coroutine_int.h b/include/block/coroutine_int.h
new file mode 100644
index 0000000000..17eb71e723
--- /dev/null
+++ b/include/block/coroutine_int.h
@@ -0,0 +1,49 @@
+/*
+ * Coroutine internals
+ *
+ * Copyright (c) 2011 Kevin Wolf <kwolf@redhat.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef QEMU_COROUTINE_INT_H
+#define QEMU_COROUTINE_INT_H
+
+#include "qemu/queue.h"
+#include "block/coroutine.h"
+
+typedef enum {
+ COROUTINE_YIELD = 1,
+ COROUTINE_TERMINATE = 2,
+} CoroutineAction;
+
+struct Coroutine {
+ CoroutineEntry *entry;
+ void *entry_arg;
+ Coroutine *caller;
+ QSLIST_ENTRY(Coroutine) pool_next;
+ QTAILQ_ENTRY(Coroutine) co_queue_next;
+};
+
+Coroutine *qemu_coroutine_new(void);
+void qemu_coroutine_delete(Coroutine *co);
+CoroutineAction qemu_coroutine_switch(Coroutine *from, Coroutine *to,
+ CoroutineAction action);
+
+#endif