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typedefs: Separate incomplete types and function types

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While there, rewrite the obsolete file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-12-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[File comment rewritten, commit message adjusted]
This commit is contained in:
Markus Armbruster 2019-08-12 07:23:41 +02:00
parent 5a720b1ed5
commit 2a28720d77
1 changed files with 23 additions and 3 deletions
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26
include/qemu/typedefs.h
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@ -1,10 +1,26 @@
#ifndef QEMU_TYPEDEFS_H
#define QEMU_TYPEDEFS_H
/* A load of opaque types so that device init declarations don't have to
pull in all the real definitions. */
/*
* This header is for selectively avoiding #include just to get a
* typedef name.
*
* Declaring a typedef name in its "obvious" place can result in
* inclusion cycles, in particular for complete struct and union
* types that need more types for their members. It can also result
* in headers pulling in many more headers, slowing down builds.
*
* You can break such cycles and unwanted dependencies by declaring
* the typedef name here.
*
* For struct types used in only a few headers, judicious use of the
* struct tag instead of the typedef name is commonly preferable.
*/
/* Please keep this list in case-insensitive alphabetical order */
/*
* Incomplete struct types
* Please keep this list in case-insensitive alphabetical order.
*/
typedef struct AdapterInfo AdapterInfo;
typedef struct AddressSpace AddressSpace;
typedef struct AioContext AioContext;
@ -101,6 +117,10 @@ typedef struct SHPCDevice SHPCDevice;
typedef struct SSIBus SSIBus;
typedef struct VirtIODevice VirtIODevice;
typedef struct Visitor Visitor;
/*
* Function types
*/
typedef void SaveStateHandler(QEMUFile *f, void *opaque);
typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);