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 +1,96 @@
+/*
+ * 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 <DataIO.h>
+#include <List.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 {
+
+typedef struct field_header_s {
+	uint8		flags;
+	type_code	type;
+	int32		count;
+	ssize_t		dataSize;
+	uint8		nameLength;
+	char		name[255];
+} __attribute__((__packed__)) FieldHeader;
+
+class BMessageField {
+public:
+							BMessageField();
+							BMessageField(const char *name, type_code type);
+							BMessageField(uint8 flags, BDataIO *stream);
+							BMessageField(const BMessageField &other);
+							~BMessageField();
+
+		BMessageField		&operator=(const BMessageField &other);
+
+		void				Flatten(BDataIO *stream);
+		void				Unflatten(uint8 flags, BDataIO *stream);
+
+		uint8				Flags() { return fHeader.flags; };
+
+		void				SetName(const char *name);
+		const char			*Name() const { return fHeader.name; };
+		uint8				NameLength() const { return fHeader.nameLength; };
+		type_code			Type() const { return fHeader.type; };
+
+		void				*AddItem(size_t length);
+		void				*ReplaceItem(int32 index, size_t newLength);
+		void				RemoveItem(int32 index);
+		int32				CountItems() const { return fHeader.count; };
+
+		const void			*BufferAt(int32 index, ssize_t *size) const;
+
+		void				MakeEmpty();
+
+		status_t			SetFixedSize(int32 itemSize, int32 count);
+		bool				IsFixedSize() const { return fHeader.flags & MSG_FLAG_FIXED_SIZE; };
+		size_t				TotalSize() const { return fHeader.dataSize; };
+
+		void				PrintToStream() const;
+
+		// hash table support
+		void				SetNext(BMessageField *next) { fNext = next; };
+		BMessageField		*Next() const { return fNext; };
+
+private:
+		void				ResetHeader(const char *name, type_code type);
+		void				FlatResize(int32 offset, size_t oldLength,
+								size_t newLength);
+
+		FieldHeader			fHeader;
+mutable	BMallocIO			fFlatBuffer;
+
+		// fixed size items
+		int32				fItemSize;
+
+		// variable sized items
+		BList				*fOffsets;
+
+		// hash table support
+		BMessageField		*fNext;
+};
+
+} // namespace BPrivate
+
+#endif // _MESSAGE_FIELD_H_