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authorPeter Xu <peterx@redhat.com>2021-07-22 13:58:40 -0400
committerDr. David Alan Gilbert <dgilbert@redhat.com>2021-07-26 12:44:59 +0100
commitc6ad5be7ae5b8c6bbbd0c592bbf18d4a78540516 (patch)
treefa2e0a09691cef4e3808c848321169dc0fa3ced5 /migration/qemu-file.h
parent18711405b506e7ca3822ed19830f1c562e0247f9 (diff)
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migration: Teach QEMUFile to be QIOChannel-aware
migration uses QIOChannel typed qemufiles. In follow up patches, we'll need the capability to identify this fact, so that we can get the backing QIOChannel from a QEMUFile. We can also define types for QEMUFile but so far since we only need to be able to identify QIOChannel, introduce a boolean which is simpler. Introduce another helper qemu_file_get_ioc() to return the ioc backend of a qemufile if has_ioc is set. No functional change. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20210722175841.938739-5-peterx@redhat.com> Reviewed-by: Lukas Straub <lukasstraub2@web.de> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration/qemu-file.h')
-rw-r--r--migration/qemu-file.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/migration/qemu-file.h b/migration/qemu-file.h
index a9b6d6c..3f36d4d 100644
--- a/migration/qemu-file.h
+++ b/migration/qemu-file.h
@@ -27,6 +27,7 @@
#include <zlib.h>
#include "exec/cpu-common.h"
+#include "io/channel.h"
/* Read a chunk of data from a file at the given position. The pos argument
* can be ignored if the file is only be used for streaming. The number of
@@ -119,7 +120,7 @@ typedef struct QEMUFileHooks {
QEMURamSaveFunc *save_page;
} QEMUFileHooks;
-QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops);
+QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops, bool has_ioc);
void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks);
int qemu_get_fd(QEMUFile *f);
int qemu_fclose(QEMUFile *f);
@@ -179,5 +180,6 @@ void ram_control_load_hook(QEMUFile *f, uint64_t flags, void *data);
size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
ram_addr_t offset, size_t size,
uint64_t *bytes_sent);
+QIOChannel *qemu_file_get_ioc(QEMUFile *file);
#endif