Merged changes from branch build_system_redesign at revision 14573.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14574 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-10-29 16:27:43 +00:00
parent 5412b02d50
commit 338b8dc301
1836 changed files with 114718 additions and 14057 deletions
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2005, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Michael Lotz <[email protected]>
+ */
+
+/* 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>
+#include "MessageBody3.h"
+
+// we only support those
+#define MSG_FLAG_VALID			0x01
+#define MSG_FLAG_FIXED_SIZE		0x04
+#define MSG_FLAG_ALL			0x05
+
+// these are for R5 compatibility
+#define MSG_FLAG_MINI_DATA		0x02
+#define MSG_FLAG_SINGLE_ITEM	0x08
+
+#define MSG_LAST_ENTRY			0x00
+
+namespace BPrivate {
+
+struct field_header_s {
+	uint8		flags;
+	type_code	type;
+	int32		count;
+	ssize_t		dataSize;
+	uint8		nameLength;
+} __attribute__((__packed__));
+
+struct item_info_s {
+				item_info_s(int32 _offset)
+					:	offset(_offset)
+				{
+				}
+
+				item_info_s(int32 _offset, int32 _length)
+					:	offset(_offset),
+						length(_length)
+				{
+				}
+
+	int32		offset;
+	int32		length;
+	int32		paddedLength;
+};
+
+typedef field_header_s FieldHeader;
+typedef item_info_s ItemInfo;
+
+class BMessageField {
+public:
+								BMessageField(BMessageBody *parent,
+									int32 offset, const char *name,
+									type_code type);
+
+		// only use this constructor to unflatten
+								BMessageField(BMessageBody *parent);
+		int32					Unflatten(int32 offset);
+
+		uint8					Flags() const { return Header()->flags; };
+		status_t				SetFixedSize(int32 itemSize);
+		bool					FixedSize() const { return fFixedSize; };
+
+		void					SetName(const char *newName);
+		const char				*Name() const;
+		uint8					NameLength() const { return Header()->nameLength; };
+		type_code				Type() const { return Header()->type; };
+
+		void					AddItem(const void *item, ssize_t length);
+		uint8					*AddItem(ssize_t length);
+
+		void					ReplaceItem(int32 index, const void *newItem,
+									ssize_t length);
+		uint8					*ReplaceItem(int32 index, ssize_t length);
+
+		void					*ItemAt(int32 index, ssize_t *size);
+
+		void					RemoveItem(int32 index);
+		int32					CountItems() const { return Header()->count; };
+
+		void					PrintToStream() const;
+
+		void					SetOffset(int32 offset) { fOffset = offset; };
+		int32					Offset() const { return fOffset; };
+
+		// always do MakeEmpty -> RemoveSelf -> delete
+		void					MakeEmpty();
+		void					RemoveSelf();
+
+		// hash table support
+		void					SetNext(BMessageField *next) { fNext = next; };
+		BMessageField			*Next() const { return fNext; };
+
+private:
+inline	FieldHeader				*Header() const { return (FieldHeader *)(fParent->FlatBuffer() + fOffset); };
+
+		BMessageBody			*fParent;
+		int32					fOffset;
+		int32					fDataOffset;
+
+		bool					fFixedSize;
+		int32					fItemSize;
+		BList					fItemInfos;
+
+		BMessageField			*fNext;
+};
+
+} // namespace BPrivate
+
+#endif // _MESSAGE_FIELD_H_