haiku/headers/private/app/MessageField2.h
Michael Lotz 1a3441a4a1 Added a new BMessageBody and BMessageField implementation and added a version of BMessage to
use it. It is not (yet) included in the build and won't break anything.
As we now only have thin wrappers around the *Data() functions, the templatized implementation does
not make much sense anymore and wouldn't work either.
I started this new implementation to be as clean as possible. Instead of using a std::map and
BDataBuffer it uses BList and BMallocIO. It passes the unit tests and it even seems to be a bit quicker
in some tests (but not as quick as the R5 one).
Flattening/Unflattening does not work yet so you can't use it under Haiku right now. It's completely work in progress (I started it just 4 hours ago).
Shout if you see something completely broken, reviews welcome.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13776 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-07-20 00:36:50 +00:00

66 lines
1.5 KiB
C++

/*
* Copyright 2005, Haiku.
* Distributed under the terms of the MIT License.
*
* Authors:
* Michael Lotz <mmlr@mlotz.ch>
*/
/* BMessageField contains the data for indiviual named fields in BMessageBody */
#ifndef _MESSAGE_FIELD_H_
#define _MESSAGE_FIELD_H_
#include <List.h>
#include <String.h>
#include <SupportDefs.h>
#define MSG_FLAG_VALID 0x01
#define MSG_FLAG_MINI_DATA 0x02
#define MSG_FLAG_FIXED_SIZE 0x04
#define MSG_FLAG_SINGLE_ITEM 0x08
#define MSG_FLAG_ALL 0x0F
#define MSG_LAST_ENTRY 0x00
namespace BPrivate {
class BMessageField {
public:
BMessageField(const char *name, type_code type);
~BMessageField();
uint8 Flags();
void SetName(const char *name);
const char *Name() const { return fName.String(); };
uint8 NameLength() const { return fName.Length(); };
type_code Type() const { return fType; };
void AddItem(BMallocIO *item);
void ReplaceItem(int32 index, BMallocIO *item,
bool deleteOld = true);
void RemoveItem(int32 index, bool deleteIt = true);
int32 CountItems() const { return fItems.CountItems(); };
size_t SizeAt(int32 index) const;
const void *BufferAt(int32 index) const;
bool IsFixedSize() const { return fFixedSize; };
size_t TotalSize() const { return fTotalSize; };
void PrintToStream() const;
private:
bool IsFixedSize(type_code type);
BString fName;
type_code fType;
BList fItems;
bool fFixedSize;
size_t fTotalSize;
};
} // namespace BPrivate
#endif // _MESSAGE_FIELD_H_