From a800cd5c38ba4ac20fe9ca68a6dee408f2d5b11f Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Thu, 5 Nov 2015 18:10:36 +0000 Subject: Add wrapper for setting blocking status on a QEMUFile Add a wrapper to change the blocking status on a QEMUFile rather than having to use qemu_set_block(qemu_get_fd(f)); it seems best to avoid exposing the fd since not all QEMUFile's really have one. With this wrapper we could move the implementation down to be different on different transports. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Amit Shah Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela --- migration/qemu-file.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'migration/qemu-file.c') diff --git a/migration/qemu-file.c b/migration/qemu-file.c index e41a677fe3..9ec22678a8 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -648,3 +648,18 @@ size_t qemu_get_counted_string(QEMUFile *f, char buf[256]) return res == len ? res : 0; } + +/* + * Set the blocking state of the QEMUFile. + * Note: On some transports the OS only keeps a single blocking state for + * both directions, and thus changing the blocking on the main + * QEMUFile can also affect the return path. + */ +void qemu_file_set_blocking(QEMUFile *f, bool block) +{ + if (block) { + qemu_set_block(qemu_get_fd(f)); + } else { + qemu_set_nonblock(qemu_get_fd(f)); + } +} -- cgit v1.2.1