From 06ad513532b1a6085abf4a5dab15d1a4719f715c Mon Sep 17 00:00:00 2001 From: "Daniel P. Berrange" Date: Wed, 27 Apr 2016 11:04:56 +0100 Subject: migration: introduce set_blocking function in QEMUFileOps Remove the assumption that every QEMUFile implementation has a file descriptor available by introducing a new function in QEMUFileOps to change the blocking state of a QEMUFile. If not set, it will fallback to the original code using the get_fd method. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Daniel P. Berrange Reviewed-by: Juan Quintela Message-Id: <1461751518-12128-7-git-send-email-berrange@redhat.com> Signed-off-by: Amit Shah --- include/migration/qemu-file.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/migration/qemu-file.h') diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h index 1934a64a64..2dea81f21e 100644 --- a/include/migration/qemu-file.h +++ b/include/migration/qemu-file.h @@ -54,6 +54,10 @@ typedef int (QEMUFileCloseFunc)(void *opaque); */ typedef int (QEMUFileGetFD)(void *opaque); +/* Called to change the blocking mode of the file + */ +typedef int (QEMUFileSetBlocking)(void *opaque, bool enabled); + /* * This function writes an iovec to file. The handler must write all * of the data or return a negative errno value. @@ -107,6 +111,7 @@ typedef struct QEMUFileOps { QEMUFileGetBufferFunc *get_buffer; QEMUFileCloseFunc *close; QEMUFileGetFD *get_fd; + QEMUFileSetBlocking *set_blocking; QEMUFileWritevBufferFunc *writev_buffer; QEMURetPathFunc *get_return_path; QEMUFileShutdownFunc *shut_down; -- cgit 1.4.1