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pb: Rewrite object reading to use pb-descs

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The pb_read thing is no longer a macros. This will allow to
factor out objects collecting on restore.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2012-08-07 02:42:58 +04:00
parent 2398c55e41
commit b1b0a39a58
23 changed files with 62 additions and 59 deletions
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16
include/protobuf.h
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@@ -62,22 +62,12 @@ typedef size_t (*pb_pack_t)(void *obj, void *where);
typedef void *(*pb_unpack_t)(void *allocator, size_t size, void *from);
typedef void (*pb_free_t)(void *obj, void *allocator);
extern int pb_read_object_with_header(int fd, void **pobj,
pb_unpack_t unpack,
bool eof);
#define PB_UNPACK_TYPECHECK(__op, __fn) ({ if (0) *__op = __fn##__unpack(NULL, 0, NULL); (pb_unpack_t)&__fn##__unpack; })
#define PB_FREE_TYPECHECK(__o, __fn) ({ if (0) __fn##__free_unpacked(__o, NULL); (pb_free_t)&__fn##__free_unpacked; })
void cr_pb_init(void);
#define pb_read(__fd, __obj_pptr, __proto_message_name) \
pb_read_object_with_header(__fd, (void **)__obj_pptr, \
PB_UNPACK_TYPECHECK(__obj_pptr, __proto_message_name), false)
extern int do_pb_read_one(int fd, void **objp, int type, bool eof);
#define pb_read_eof(__fd, __obj_pptr, __proto_message_name) \
pb_read_object_with_header(__fd, (void **)__obj_pptr, \
PB_UNPACK_TYPECHECK(__obj_pptr, __proto_message_name), true)
#define pb_read_one(fd, objp, type) do_pb_read_one(fd, (void **)objp, type, false)
#define pb_read_one_eof(fd, objp, type) do_pb_read_one(fd, (void **)objp, type, true)
extern int pb_write_one(int fd, void *obj, int type);