2005-01-22 22:19:36 +03:00
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/*
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2007-07-30 01:36:49 +04:00
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* Copyright 2005-2007, Ingo Weinhold, bonefish@users.sf.net. All rights reserved.
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2005-01-22 22:19:36 +03:00
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* Distributed under the terms of the MIT License.
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*/
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#ifndef KMESSAGE_H
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#define KMESSAGE_H
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2005-01-23 22:43:32 +03:00
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#include <string.h>
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#include <OS.h>
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2005-01-22 22:19:36 +03:00
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#include <TypeConstants.h>
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2007-07-15 04:32:37 +04:00
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#ifdef __cplusplus
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2005-11-13 02:27:14 +03:00
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class BMessage;
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2005-01-22 22:19:36 +03:00
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namespace BPrivate {
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class KMessageField;
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2007-06-28 00:22:53 +04:00
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class MessageAdapter;
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2005-01-22 22:19:36 +03:00
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// KMessage
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class KMessage {
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public:
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enum {
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KMESSAGE_OWNS_BUFFER = 0x01,
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KMESSAGE_INIT_FROM_BUFFER = 0x02,
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KMESSAGE_READ_ONLY = 0x04,
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KMESSAGE_FLAG_MASK = 0x07,
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};
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KMessage();
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KMessage(uint32 what);
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~KMessage();
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status_t SetTo(uint32 what, uint32 flags = 0);
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status_t SetTo(void *buffer, int32 bufferSize, uint32 what,
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uint32 flags = 0);
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2007-07-15 04:32:37 +04:00
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status_t SetTo(const void *buffer, int32 bufferSize = -1);
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2005-01-22 22:19:36 +03:00
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void Unset();
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void SetWhat(uint32 what);
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uint32 What() const;
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const void *Buffer() const;
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int32 BufferCapacity() const;
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int32 ContentSize() const;
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status_t AddField(const char *name, type_code type, int32 elementSize = -1,
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KMessageField *field = NULL);
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status_t FindField(const char *name, KMessageField *field) const;
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status_t FindField(const char *name, type_code type,
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KMessageField *field) const;
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status_t GetNextField(KMessageField *field) const;
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status_t AddData(const char *name, type_code type, const void *data,
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int32 numBytes, bool isFixedSize = true);
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status_t AddArray(const char *name, type_code type, const void *data,
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int32 elementSize, int32 elementCount);
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inline status_t AddBool(const char *name, bool value);
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inline status_t AddInt8(const char *name, int8 value);
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inline status_t AddInt16(const char *name, int16 value);
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inline status_t AddInt32(const char *name, int32 value);
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inline status_t AddInt64(const char *name, int64 value);
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inline status_t AddString(const char *name, const char *value);
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status_t FindData(const char *name, type_code type,
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const void **data, int32 *numBytes) const;
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status_t FindData(const char *name, type_code type, int32 index,
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const void **data, int32 *numBytes) const;
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inline status_t FindBool(const char *name, bool *value) const;
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inline status_t FindBool(const char *name, int32 index, bool *value) const;
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inline status_t FindInt8(const char *name, int8 *value) const;
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inline status_t FindInt8(const char *name, int32 index, int8 *value) const;
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inline status_t FindInt16(const char *name, int16 *value) const;
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inline status_t FindInt16(const char *name, int32 index, int16 *value) const;
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inline status_t FindInt32(const char *name, int32 *value) const;
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inline status_t FindInt32(const char *name, int32 index, int32 *value) const;
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inline status_t FindInt64(const char *name, int64 *value) const;
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inline status_t FindInt64(const char *name, int32 index, int64 *value) const;
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inline status_t FindString(const char *name, const char **value) const;
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inline status_t FindString(const char *name, int32 index,
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const char **value) const;
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2007-07-15 04:32:37 +04:00
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inline bool GetBool(const char* name, bool defaultValue) const;
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inline bool GetBool(const char* name, int32 index, bool defaultValue) const;
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inline int8 GetInt8(const char* name, int8 defaultValue) const;
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inline int8 GetInt8(const char* name, int32 index, int8 defaultValue) const;
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inline int16 GetInt16(const char* name, int16 defaultValue) const;
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inline int16 GetInt16(const char* name, int32 index,
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int16 defaultValue) const;
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inline int32 GetInt32(const char* name, int32 defaultValue) const;
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inline int32 GetInt32(const char* name, int32 index,
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int32 defaultValue) const;
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inline int64 GetInt64(const char* name, int64 defaultValue) const;
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inline int64 GetInt64(const char* name, int32 index,
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int64 defaultValue) const;
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inline const char* GetString(const char* name,
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const char* defaultValue) const;
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inline const char* GetString(const char* name, int32 index,
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const char* defaultValue) const;
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// fixed size fields only
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status_t SetData(const char* name, type_code type, const void* data,
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int32 numBytes);
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inline status_t SetBool(const char* name, bool value);
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inline status_t SetInt8(const char* name, int8 value);
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inline status_t SetInt16(const char* name, int16 value);
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inline status_t SetInt32(const char* name, int32 value);
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inline status_t SetInt64(const char* name, int64 value);
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2005-01-22 22:19:36 +03:00
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// message delivery
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team_id Sender() const;
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int32 TargetToken() const;
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port_id ReplyPort() const;
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int32 ReplyToken() const;
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2007-07-30 01:36:49 +04:00
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void SetDeliveryInfo(int32 targetToken, port_id replyPort,
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int32 replyToken, team_id senderTeam);
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2005-01-22 22:19:36 +03:00
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status_t SendTo(port_id targetPort, int32 targetToken = -1,
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port_id replyPort = -1, int32 replyToken = -1, bigtime_t timeout = -1,
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team_id senderTeam = -1);
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status_t SendTo(port_id targetPort, int32 targetToken,
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KMessage* reply, bigtime_t deliveryTimeout = -1,
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bigtime_t replyTimeout = -1, team_id senderTeam = -1);
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status_t SendReply(KMessage* message, port_id replyPort = -1,
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int32 replyToken = -1, bigtime_t timeout = -1, team_id senderTeam = -1);
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status_t SendReply(KMessage* message, KMessage* reply,
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bigtime_t deliveryTimeout = -1, bigtime_t replyTimeout = -1,
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team_id senderTeam = -1);
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status_t ReceiveFrom(port_id fromPort, bigtime_t timeout = -1);
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2008-04-17 20:05:37 +04:00
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void Dump(void (*printFunc)(const char*,...));
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2005-01-22 22:19:36 +03:00
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private:
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friend class KMessageField;
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2007-06-28 00:22:53 +04:00
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friend class MessageAdapter;
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2005-11-13 02:27:14 +03:00
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friend class ::BMessage; // not so nice, but makes things easier
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2005-01-22 22:19:36 +03:00
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struct Header {
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uint32 magic;
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int32 size;
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uint32 what;
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team_id sender;
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int32 targetToken;
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port_id replyPort;
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int32 replyToken;
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};
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struct FieldHeader;
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struct FieldValueHeader;
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Header *_Header() const;
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int32 _BufferOffsetFor(const void* data) const;
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FieldHeader *_FirstFieldHeader() const;
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FieldHeader *_LastFieldHeader() const;
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FieldHeader *_FieldHeaderForOffset(int32 offset) const;
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status_t _AddField(const char *name, type_code type, int32 elementSize,
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KMessageField *field);
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status_t _AddFieldData(KMessageField *field, const void *data,
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int32 elementSize, int32 elementCount);
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2007-07-15 04:32:37 +04:00
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status_t _InitFromBuffer(bool sizeFromBuffer);
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2005-01-22 22:19:36 +03:00
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void _InitBuffer(uint32 what);
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void _CheckBuffer(); // debugging only
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status_t _AllocateSpace(int32 size, bool alignAddress, bool alignSize,
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void **address, int32 *alignedSize);
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int32 _CapacityFor(int32 size);
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template<typename T> inline status_t _FindType(const char* name,
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type_code type, int32 index, T *value) const;
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2007-07-15 04:32:37 +04:00
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template<typename T> inline T _GetType(const char* name, type_code type,
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int32 index, const T& defaultValue) const;
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2005-01-22 22:19:36 +03:00
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Header fHeader; // pointed to by fBuffer, if nothing is
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// allocated
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void* fBuffer;
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int32 fBufferCapacity;
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uint32 fFlags;
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int32 fLastFieldOffset;
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2005-01-26 05:10:42 +03:00
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static const uint32 kMessageHeaderMagic;
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2005-01-22 22:19:36 +03:00
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};
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// KMessageField
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class KMessageField {
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public:
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KMessageField();
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void Unset();
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KMessage *Message() const;
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const char *Name() const;
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type_code TypeCode() const;
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bool HasFixedElementSize() const;
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int32 ElementSize() const; // if HasFixedElementSize()
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status_t AddElement(const void *data, int32 size = -1);
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status_t AddElements(const void *data, int32 count, int32 elementSize = -1);
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const void *ElementAt(int32 index, int32 *size = NULL) const;
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int32 CountElements() const;
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private:
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void SetTo(KMessage *message, int32 headerOffset);
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KMessage::FieldHeader* _Header() const;
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friend class KMessage;
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KMessage *fMessage;
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int32 fHeaderOffset;
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};
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} // namespace BPrivate
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using BPrivate::KMessage;
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using BPrivate::KMessageField;
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2007-07-15 04:32:37 +04:00
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// #pragma mark - inline functions
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2005-01-22 22:19:36 +03:00
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// AddBool
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inline
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status_t
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KMessage::AddBool(const char *name, bool value)
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{
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return AddData(name, B_BOOL_TYPE, &value, sizeof(bool), true);
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}
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// AddInt8
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inline
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status_t
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KMessage::AddInt8(const char *name, int8 value)
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{
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return AddData(name, B_INT8_TYPE, &value, sizeof(int8), true);
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}
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// AddInt16
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inline
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status_t
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KMessage::AddInt16(const char *name, int16 value)
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{
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return AddData(name, B_INT16_TYPE, &value, sizeof(int16), true);
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}
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// AddInt32
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inline
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status_t
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KMessage::AddInt32(const char *name, int32 value)
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{
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return AddData(name, B_INT32_TYPE, &value, sizeof(int32), true);
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}
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// AddInt64
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inline
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status_t
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KMessage::AddInt64(const char *name, int64 value)
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{
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return AddData(name, B_INT64_TYPE, &value, sizeof(int64), true);
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}
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// AddString
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inline
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status_t
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KMessage::AddString(const char *name, const char *value)
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{
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if (!value)
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return B_BAD_VALUE;
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return AddData(name, B_STRING_TYPE, value, strlen(value) + 1, false);
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}
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2007-07-15 04:32:37 +04:00
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2005-01-22 22:19:36 +03:00
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// #pragma mark -
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2007-07-15 04:32:37 +04:00
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// _FindType
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template<typename T>
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inline status_t
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KMessage::_FindType(const char* name, type_code type, int32 index,
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T *value) const
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{
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const void *data;
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int32 size;
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status_t error = FindData(name, type, index, &data, &size);
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if (error != B_OK)
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return error;
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if (size != sizeof(T))
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return B_BAD_DATA;
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*value = *(T*)data;
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return B_OK;
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}
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2005-01-22 22:19:36 +03:00
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// FindBool
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inline
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status_t
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KMessage::FindBool(const char *name, bool *value) const
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{
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return FindBool(name, 0, value);
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}
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// FindBool
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inline
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status_t
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KMessage::FindBool(const char *name, int32 index, bool *value) const
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{
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return _FindType(name, B_BOOL_TYPE, index, value);
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}
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// FindInt8
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inline
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status_t
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KMessage::FindInt8(const char *name, int8 *value) const
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{
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return FindInt8(name, 0, value);
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}
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// FindInt8
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inline
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status_t
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KMessage::FindInt8(const char *name, int32 index, int8 *value) const
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{
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return _FindType(name, B_INT8_TYPE, index, value);
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}
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// FindInt16
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inline
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status_t
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KMessage::FindInt16(const char *name, int16 *value) const
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{
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return FindInt16(name, 0, value);
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}
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// FindInt16
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inline
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status_t
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KMessage::FindInt16(const char *name, int32 index, int16 *value) const
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{
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return _FindType(name, B_INT16_TYPE, index, value);
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}
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// FindInt32
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inline
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status_t
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KMessage::FindInt32(const char *name, int32 *value) const
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{
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return FindInt32(name, 0, value);
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}
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|
// FindInt32
|
|
|
|
inline
|
|
|
|
status_t
|
|
|
|
KMessage::FindInt32(const char *name, int32 index, int32 *value) const
|
|
|
|
{
|
|
|
|
return _FindType(name, B_INT32_TYPE, index, value);
|
|
|
|
}
|
|
|
|
|
|
|
|
// FindInt64
|
|
|
|
inline
|
|
|
|
status_t
|
|
|
|
KMessage::FindInt64(const char *name, int64 *value) const
|
|
|
|
{
|
|
|
|
return FindInt64(name, 0, value);
|
|
|
|
}
|
|
|
|
|
|
|
|
// FindInt64
|
|
|
|
inline
|
|
|
|
status_t
|
|
|
|
KMessage::FindInt64(const char *name, int32 index, int64 *value) const
|
|
|
|
{
|
|
|
|
return _FindType(name, B_INT64_TYPE, index, value);
|
|
|
|
}
|
|
|
|
|
|
|
|
// FindString
|
|
|
|
inline
|
|
|
|
status_t
|
|
|
|
KMessage::FindString(const char *name, const char **value) const
|
|
|
|
{
|
|
|
|
return FindString(name, 0, value);
|
|
|
|
}
|
|
|
|
|
|
|
|
// FindString
|
|
|
|
inline
|
|
|
|
status_t
|
|
|
|
KMessage::FindString(const char *name, int32 index, const char **value) const
|
|
|
|
{
|
|
|
|
int32 size;
|
|
|
|
return FindData(name, B_STRING_TYPE, index, (const void**)value, &size);
|
|
|
|
}
|
|
|
|
|
2007-07-15 04:32:37 +04:00
|
|
|
|
|
|
|
// _GetType
|
|
|
|
template<typename T>
|
|
|
|
inline T
|
|
|
|
KMessage::_GetType(const char* name, type_code type, int32 index,
|
|
|
|
const T& defaultValue) const
|
|
|
|
{
|
|
|
|
T value;
|
|
|
|
if (_FindType(name, type, index, &value) == B_OK)
|
|
|
|
return value;
|
|
|
|
return defaultValue;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetBool
|
|
|
|
inline bool
|
|
|
|
KMessage::GetBool(const char* name, bool defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_BOOL_TYPE, 0, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetBool
|
|
|
|
inline bool
|
|
|
|
KMessage::GetBool(const char* name, int32 index, bool defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_BOOL_TYPE, index, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
// GetInt8
|
|
|
|
inline int8
|
|
|
|
KMessage::GetInt8(const char* name, int8 defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_INT8_TYPE, 0, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetInt8
|
|
|
|
inline int8
|
|
|
|
KMessage::GetInt8(const char* name, int32 index, int8 defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_INT8_TYPE, index, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetInt16
|
|
|
|
inline int16
|
|
|
|
KMessage::GetInt16(const char* name, int16 defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_INT16_TYPE, 0, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetInt16
|
|
|
|
inline int16
|
|
|
|
KMessage::GetInt16(const char* name, int32 index, int16 defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_INT16_TYPE, index, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetInt32
|
|
|
|
inline int32
|
|
|
|
KMessage::GetInt32(const char* name, int32 defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_INT32_TYPE, 0, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetInt32
|
|
|
|
inline int32
|
|
|
|
KMessage::GetInt32(const char* name, int32 index, int32 defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_INT32_TYPE, index, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetInt64
|
|
|
|
inline int64
|
|
|
|
KMessage::GetInt64(const char* name, int64 defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_INT64_TYPE, 0, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetInt64
|
|
|
|
inline int64
|
|
|
|
KMessage::GetInt64(const char* name, int32 index, int64 defaultValue) const
|
|
|
|
{
|
|
|
|
return _GetType(name, B_INT64_TYPE, index, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetString
|
|
|
|
inline const char*
|
|
|
|
KMessage::GetString(const char* name, int32 index,
|
|
|
|
const char* defaultValue) const
|
|
|
|
{
|
|
|
|
// don't use _GetType() here, since it checks field size == sizeof(T)
|
|
|
|
int32 size;
|
|
|
|
const char* value;
|
|
|
|
if (FindData(name, B_STRING_TYPE, index, (const void**)&value, &size)
|
|
|
|
== B_OK) {
|
|
|
|
return value;
|
|
|
|
}
|
|
|
|
return defaultValue;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// GetString
|
|
|
|
inline const char*
|
|
|
|
KMessage::GetString(const char* name, const char* defaultValue) const
|
|
|
|
{
|
|
|
|
return GetString(name, 0, defaultValue);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// SetBool
|
|
|
|
inline status_t
|
|
|
|
KMessage::SetBool(const char* name, bool value)
|
|
|
|
{
|
|
|
|
return SetData(name, B_BOOL_TYPE, &value, sizeof(bool));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// SetInt8
|
|
|
|
inline status_t
|
|
|
|
KMessage::SetInt8(const char* name, int8 value)
|
|
|
|
{
|
|
|
|
return SetData(name, B_INT8_TYPE, &value, sizeof(int8));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// SetInt16
|
|
|
|
inline status_t
|
|
|
|
KMessage::SetInt16(const char* name, int16 value)
|
|
|
|
{
|
|
|
|
return SetData(name, B_INT16_TYPE, &value, sizeof(int16));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// SetInt32
|
|
|
|
inline status_t
|
|
|
|
KMessage::SetInt32(const char* name, int32 value)
|
|
|
|
{
|
|
|
|
return SetData(name, B_INT32_TYPE, &value, sizeof(int32));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// SetInt64
|
|
|
|
inline status_t
|
|
|
|
KMessage::SetInt64(const char* name, int64 value)
|
|
|
|
{
|
|
|
|
return SetData(name, B_INT64_TYPE, &value, sizeof(int64));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#else // !__cplusplus
|
|
|
|
|
|
|
|
|
|
|
|
typedef struct KMessage {
|
|
|
|
struct Header {
|
|
|
|
uint32 magic;
|
|
|
|
int32 size;
|
|
|
|
uint32 what;
|
|
|
|
team_id sender;
|
|
|
|
int32 targetToken;
|
|
|
|
port_id replyPort;
|
|
|
|
int32 replyToken;
|
|
|
|
} fHeader;
|
|
|
|
void* fBuffer;
|
|
|
|
int32 fBufferCapacity;
|
|
|
|
uint32 fFlags;
|
|
|
|
int32 fLastFieldOffset;
|
|
|
|
} KMessage;
|
|
|
|
|
|
|
|
|
|
|
|
#endif // !__cplusplus
|
|
|
|
|
|
|
|
|
2005-01-22 22:19:36 +03:00
|
|
|
#endif // KMESSAGE_H
|