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 +1,103 @@
+/*
+ * Copyright 2005, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Michael Lotz <[email protected]>
+ */
+
+/* BMessageBody handles data storage and retrieval for BMessage. */
+
+#ifndef _MESSAGE_BODY_H_
+#define _MESSAGE_BODY_H_
+
+#include <List.h>
+
+enum {
+	B_FLATTENABLE_TYPE = 'FLAT'
+};
+
+namespace BPrivate {
+
+class BMessageField;
+
+class BMessageBody {
+public:
+							BMessageBody();
+							BMessageBody(const BMessageBody &other);
+							~BMessageBody();
+
+		BMessageBody		&operator=(const BMessageBody &other);
+
+		status_t			GetInfo(type_code typeRequested, int32 which,
+								char **name, type_code *typeFound,
+								int32 *countFound = NULL) const;
+		status_t			GetInfo(const char *name, type_code *typeFound,
+								int32 *countFound = NULL) const;
+		status_t			GetInfo(const char *name, type_code *typeFound,
+								bool *fixedSize) const;
+
+		int32				CountNames(type_code type) const;
+		bool				IsEmpty() const;
+
+		ssize_t				FlattenedSize() const;
+		status_t			Flatten(BDataIO *stream) const;
+		status_t			Unflatten(BDataIO *stream, int32 length);
+
+		status_t			AddData(const char *name, type_code type,
+								const void *item, ssize_t length,
+								bool fixedSize);
+		status_t			AddData(const char *name, type_code type,
+								void **buffer, ssize_t length);
+		status_t			ReplaceData(const char *name, type_code type,
+								int32 index, const void *item, ssize_t length);
+		status_t			ReplaceData(const char *name, type_code type,
+								int32 index, void **buffer, ssize_t length);
+
+		status_t			RemoveData(const char *name, int32 index = 0);
+
+		bool				HasData(const char *name, type_code t,
+								int32 index) const;
+		status_t			FindData(const char *name, type_code type,
+								int32 index, const void **data,
+								ssize_t *numBytes) const;
+
+		status_t			Rename(const char *oldName, const char *newName);
+		status_t			RemoveName(const char *name);
+		status_t			MakeEmpty();
+
+		void				PrintToStream() const;
+
+		// flat buffer management
+inline	uint8				*FlatBuffer() const { return fFlatBuffer; };
+		uint8				*FlatInsert(int32 offset, ssize_t oldLength,
+								ssize_t newLength);
+		void				FlatResize(int32 newSize);
+
+		// hash table support
+		void				HashInsert(BMessageField *field);
+		BMessageField		*HashLookup(const char *name) const;
+		BMessageField		*HashRemove(const char *name);
+		uint32				HashString(const char *string) const;
+		void				HashClear();
+
+private:
+		status_t			InitCommon();
+		BMessageField		*AddData(const char *name, type_code type,
+								status_t &error);
+		BMessageField		*FindData(const char *name, type_code type,
+								status_t &error) const;
+
+		BList				fFieldList;
+		BMessageField		**fFieldTable;
+		int32				fFieldTableSize;
+
+		uint8				*fFlatBuffer;
+		int32				fFlatLength;
+		int32				fFlatAllocated;
+		int32				fBlockSize;
+};
+
+} // namespace BPrivate
+
+#endif // _MESSAGE_BODY_H_