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authorAnthony Liguori <aliguori@us.ibm.com>2012-01-27 08:58:52 -0600
committerAnthony Liguori <aliguori@us.ibm.com>2012-01-27 08:58:52 -0600
commit21fe5bc678b16d748db385fb1be95caa96b00eee (patch)
tree33342168c916f107f2c1e89c8fff8490b9e46f88 /qemu-coroutine.h
parent96bab41df61b532bb6954a38527ad8403859a6c9 (diff)
parente2f0c49ffae8d3a00272c3cbc68850cc5aafbffa (diff)
downloadfocaccia-qemu-21fe5bc678b16d748db385fb1be95caa96b00eee.tar.gz
focaccia-qemu-21fe5bc678b16d748db385fb1be95caa96b00eee.zip
Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony: (22 commits)
  scsi: Guard against buflen exceeding req->cmd.xfer in scsi_disk_emulate_command
  qcow: Use bdrv functions to replace file operation
  qcow: Return real error code in qcow_open
  block/vdi: Zero unused parts when allocating a new block (fix #919242)
  virtio-blk: add virtio_blk_handle_read trace event
  docs: describe live block operations
  block: add support for partial streaming
  add QERR_BASE_NOT_FOUND
  block: add bdrv_find_backing_image
  blockdev: make image streaming safe across hotplug
  qmp: add query-block-jobs
  qmp: add block_job_cancel command
  qmp: add block_job_set_speed command
  qmp: add block_stream command
  block: rate-limit streaming operations
  block: add image streaming block job
  block: add BlockJob interface for long-running operations
  block: make copy-on-read a per-request flag
  block: check bdrv_in_use() before blockdev operations
  coroutine: add co_sleep_ns() coroutine sleep function
  ...
Diffstat (limited to 'qemu-coroutine.h')
-rw-r--r--qemu-coroutine.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/qemu-coroutine.h b/qemu-coroutine.h
index 8a55fe125e..34c15d4116 100644
--- a/qemu-coroutine.h
+++ b/qemu-coroutine.h
@@ -17,6 +17,7 @@
 
 #include <stdbool.h>
 #include "qemu-queue.h"
+#include "qemu-timer.h"
 
 /**
  * Coroutines are a mechanism for stack switching and can be used for
@@ -199,4 +200,12 @@ void qemu_co_rwlock_wrlock(CoRwlock *lock);
  */
 void qemu_co_rwlock_unlock(CoRwlock *lock);
 
+/**
+ * Yield the coroutine for a given duration
+ *
+ * Note this function uses timers and hence only works when a main loop is in
+ * use.  See main-loop.h and do not use from qemu-tool programs.
+ */
+void coroutine_fn co_sleep_ns(QEMUClock *clock, int64_t ns);
+
 #endif /* QEMU_COROUTINE_H */