haiku/headers/os/app/Messenger.h
Tyler Dauwalder ef753322a8 Updated BQuery's BMessenger hack to be more legit (and
to allow libstorage to compile using public app kit headers)


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@783 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-08-16 21:58:44 +00:00

122 lines
4.2 KiB
C++

//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: Messenger.h
// Author: Ingo Weinhold (bonefish@users.sf.net)
// Description: BMessenger delivers messages to local or remote targets.
//------------------------------------------------------------------------------
#ifndef _MESSENGER_H
#define _MESSENGER_H
// Standard Includes -----------------------------------------------------------
// System Includes -------------------------------------------------------------
#include <BeBuild.h>
#include <OS.h>
#include <ByteOrder.h>
#include <Message.h>
// Project Includes ------------------------------------------------------------
// Local Includes --------------------------------------------------------------
// Local Defines ---------------------------------------------------------------
// Globals ---------------------------------------------------------------------
class BHandler;
class BLooper;
namespace BPrivate {
class TRoster;
};
// BMessenger class ------------------------------------------------------------
class BMessenger {
public:
BMessenger();
BMessenger(const char *signature, team_id team = -1,
status_t *result = NULL);
BMessenger(const BHandler *handler, const BLooper *looper = NULL,
status_t *result = NULL);
BMessenger(const BMessenger &from);
~BMessenger();
// Target
bool IsTargetLocal() const;
BHandler *Target(BLooper **looper) const;
bool LockTarget() const;
status_t LockTargetWithTimeout(bigtime_t timeout) const;
// Message sending
status_t SendMessage(uint32 command, BHandler *replyTo = NULL) const;
status_t SendMessage(BMessage *message, BHandler *replyTo = NULL,
bigtime_t timeout = B_INFINITE_TIMEOUT) const;
status_t SendMessage(BMessage *message, BMessenger replyTo,
bigtime_t timeout = B_INFINITE_TIMEOUT) const;
status_t SendMessage(uint32 command, BMessage *reply) const;
status_t SendMessage(BMessage *message, BMessage *reply,
bigtime_t deliveryTimeout = B_INFINITE_TIMEOUT,
bigtime_t replyTimeout = B_INFINITE_TIMEOUT) const;
// Operators and misc
BMessenger &operator=(const BMessenger &from);
bool operator==(const BMessenger &other) const;
bool IsValid() const;
team_id Team() const;
//----- Private or reserved -----------------------------------------
private:
friend class BRoster;
friend class BPrivate::TRoster;
friend class BMessage;
friend class BQuery;
friend inline void _set_message_reply_(BMessage *, BMessenger);
friend status_t swap_data(type_code, void *, size_t, swap_action);
friend bool operator<(const BMessenger &a, const BMessenger &b);
friend bool operator!=(const BMessenger &a, const BMessenger &b);
BMessenger(team_id team, port_id port, int32 token, bool preferred);
void InitData(const char *signature, team_id team, status_t *result);
private:
port_id fPort;
int32 fHandlerToken;
team_id fTeam;
int32 extra0;
int32 extra1;
bool fPreferredTarget;
bool extra2;
bool extra3;
bool extra4;
};
_IMPEXP_BE bool operator<(const BMessenger &a, const BMessenger &b);
_IMPEXP_BE bool operator!=(const BMessenger &a, const BMessenger &b);
#endif // _MESSENGER_H