[PATCH v2 16/21] migration: remove the QEMUFileOps 'set_blocking' callback

["Daniel P. Berrangé" <berrange@redhat.com>]

This directly implements the set_blocking logic using QIOChannel APIs.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 migration/qemu-file-channel.c | 14 --------------
 migration/qemu-file.c         |  4 +---
 migration/qemu-file.h         |  5 -----
 3 files changed, 1 insertion(+), 22 deletions(-)

diff --git a/migration/qemu-file-channel.c b/migration/qemu-file-channel.c
index 80f05dc371..0350d367ec 100644
--- a/migration/qemu-file-channel.c
+++ b/migration/qemu-file-channel.c
@@ -112,18 +112,6 @@ static int channel_close(void *opaque, Error **errp)
 }
 
 
-static int channel_set_blocking(void *opaque,
-                                bool enabled,
-                                Error **errp)
-{
-    QIOChannel *ioc = QIO_CHANNEL(opaque);
-
-    if (qio_channel_set_blocking(ioc, enabled, errp) < 0) {
-        return -1;
-    }
-    return 0;
-}
-
 static QEMUFile *channel_get_input_return_path(void *opaque)
 {
     QIOChannel *ioc = QIO_CHANNEL(opaque);
@@ -141,7 +129,6 @@ static QEMUFile *channel_get_output_return_path(void *opaque)
 static const QEMUFileOps channel_input_ops = {
     .get_buffer = channel_get_buffer,
     .close = channel_close,
-    .set_blocking = channel_set_blocking,
     .get_return_path = channel_get_input_return_path,
 };
 
@@ -149,7 +136,6 @@ static const QEMUFileOps channel_input_ops = {
 static const QEMUFileOps channel_output_ops = {
     .writev_buffer = channel_writev_buffer,
     .close = channel_close,
-    .set_blocking = channel_set_blocking,
     .get_return_path = channel_get_output_return_path,
 };
 
diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index 6e79de1404..efbc0a5515 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -879,9 +879,7 @@ void qemu_put_counted_string(QEMUFile *f, const char *str)
  */
 void qemu_file_set_blocking(QEMUFile *f, bool block)
 {
-    if (f->ops->set_blocking) {
-        f->ops->set_blocking(f->ioc, block, NULL);
-    }
+    qio_channel_set_blocking(f->ioc, block, NULL);
 }
 
 /*
diff --git a/migration/qemu-file.h b/migration/qemu-file.h
index 9fa92c1998..7793e765f2 100644
--- a/migration/qemu-file.h
+++ b/migration/qemu-file.h
@@ -46,10 +46,6 @@ typedef ssize_t (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf,
  */
 typedef int (QEMUFileCloseFunc)(void *opaque, Error **errp);
 
-/* Called to change the blocking mode of the file
- */
-typedef int (QEMUFileSetBlocking)(void *opaque, bool enabled, Error **errp);
-
 /*
  * This function writes an iovec to file. The handler must write all
  * of the data or return a negative errno value.
@@ -92,7 +88,6 @@ typedef QEMUFile *(QEMURetPathFunc)(void *opaque);
 typedef struct QEMUFileOps {
     QEMUFileGetBufferFunc *get_buffer;
     QEMUFileCloseFunc *close;
-    QEMUFileSetBlocking *set_blocking;
     QEMUFileWritevBufferFunc *writev_buffer;
     QEMURetPathFunc *get_return_path;
 } QEMUFileOps;
-- 
2.36.1