1 files changed, 49 insertions, 0 deletions
diff --git a/block/block-gen.h b/block/block-gen.h
new file mode 100644
index 0000000000..f80cf4897d
--- /dev/null
+++ b/block/block-gen.h
@@ -0,0 +1,49 @@
+/*
+ * Block coroutine wrapping core, used by auto-generated block/block-gen.c
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2020 Virtuozzo International GmbH
+ *
+ * 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 BLOCK_BLOCK_GEN_H
+#define BLOCK_BLOCK_GEN_H
+
+#include "block/block_int.h"
+
+/* Base structure for argument packing structures */
+typedef struct BdrvPollCo {
+    BlockDriverState *bs;
+    bool in_progress;
+    int ret;
+    Coroutine *co; /* Keep pointer here for debugging */
+} BdrvPollCo;
+
+static inline int bdrv_poll_co(BdrvPollCo *s)
+{
+    assert(!qemu_in_coroutine());
+
+    bdrv_coroutine_enter(s->bs, s->co);
+    BDRV_POLL_WHILE(s->bs, s->in_progress);
+
+    return s->ret;
+}
+
+#endif /* BLOCK_BLOCK_GEN_H */