aboutsummaryrefslogtreecommitdiff
path: root/migration
diff options
context:
space:
mode:
authorDaniel P. Berrangé <berrange@redhat.com>2022-06-20 12:01:57 +0100
committerDr. David Alan Gilbert <dgilbert@redhat.com>2022-06-22 19:33:43 +0100
commitc0c6e1e2dd26ee3ee0218d64be6c532872935070 (patch)
treee843f823d267fd607f7e465867cf7583c3bfc91c /migration
parent2893a2884b1deb09af51f4377f1aaf29b28b0c93 (diff)
downloadqemu-c0c6e1e2dd26ee3ee0218d64be6c532872935070.zip
qemu-c0c6e1e2dd26ee3ee0218d64be6c532872935070.tar.gz
qemu-c0c6e1e2dd26ee3ee0218d64be6c532872935070.tar.bz2
migration: introduce new constructors for QEMUFile
Prepare for the elimination of QEMUFileOps by introducing a pair of new constructors. This lets us distinguish between an input and output file object explicitly rather than via the existance of specific callbacks. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/qemu-file-channel.c4
-rw-r--r--migration/qemu-file.c18
-rw-r--r--migration/qemu-file.h3
3 files changed, 20 insertions, 5 deletions
diff --git a/migration/qemu-file-channel.c b/migration/qemu-file-channel.c
index ce8eced..5cb8ac9 100644
--- a/migration/qemu-file-channel.c
+++ b/migration/qemu-file-channel.c
@@ -184,11 +184,11 @@ static const QEMUFileOps channel_output_ops = {
QEMUFile *qemu_fopen_channel_input(QIOChannel *ioc)
{
object_ref(OBJECT(ioc));
- return qemu_fopen_ops(ioc, &channel_input_ops);
+ return qemu_file_new_input(ioc, &channel_input_ops);
}
QEMUFile *qemu_fopen_channel_output(QIOChannel *ioc)
{
object_ref(OBJECT(ioc));
- return qemu_fopen_ops(ioc, &channel_output_ops);
+ return qemu_file_new_output(ioc, &channel_output_ops);
}
diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index 30e2160..2d6ceb5 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -38,6 +38,7 @@ struct QEMUFile {
const QEMUFileOps *ops;
const QEMUFileHooks *hooks;
QIOChannel *ioc;
+ bool is_writable;
/*
* Maximum amount of data in bytes to transfer during one
@@ -111,7 +112,9 @@ bool qemu_file_mode_is_not_valid(const char *mode)
return false;
}
-QEMUFile *qemu_fopen_ops(QIOChannel *ioc, const QEMUFileOps *ops)
+static QEMUFile *qemu_file_new_impl(QIOChannel *ioc,
+ const QEMUFileOps *ops,
+ bool is_writable)
{
QEMUFile *f;
@@ -119,10 +122,21 @@ QEMUFile *qemu_fopen_ops(QIOChannel *ioc, const QEMUFileOps *ops)
f->ioc = ioc;
f->ops = ops;
+ f->is_writable = is_writable;
return f;
}
+QEMUFile *qemu_file_new_output(QIOChannel *ioc, const QEMUFileOps *ops)
+{
+ return qemu_file_new_impl(ioc, ops, true);
+}
+
+QEMUFile *qemu_file_new_input(QIOChannel *ioc, const QEMUFileOps *ops)
+{
+ return qemu_file_new_impl(ioc, ops, false);
+}
+
void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks)
{
@@ -181,7 +195,7 @@ void qemu_file_set_error(QEMUFile *f, int ret)
bool qemu_file_is_writable(QEMUFile *f)
{
- return f->ops->writev_buffer;
+ return f->is_writable;
}
static void qemu_iovec_release_ram(QEMUFile *f)
diff --git a/migration/qemu-file.h b/migration/qemu-file.h
index 3a1ecc0..3c93a27 100644
--- a/migration/qemu-file.h
+++ b/migration/qemu-file.h
@@ -118,7 +118,8 @@ typedef struct QEMUFileHooks {
QEMURamSaveFunc *save_page;
} QEMUFileHooks;
-QEMUFile *qemu_fopen_ops(QIOChannel *ioc, const QEMUFileOps *ops);
+QEMUFile *qemu_file_new_input(QIOChannel *ioc, const QEMUFileOps *ops);
+QEMUFile *qemu_file_new_output(QIOChannel *ioc, const QEMUFileOps *ops);
void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks);
int qemu_get_fd(QEMUFile *f);
int qemu_fclose(QEMUFile *f);