gecko-dev/netwerk/base/public/nsASocketHandler.h

100 lines
3.6 KiB
C++

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@netscape.com>
* Florian Queze <florian@queze.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsASocketHandler_h__
#define nsASocketHandler_h__
// socket handler used by nsISocketTransportService.
// methods are only called on the socket thread.
class nsASocketHandler : public nsISupports
{
public:
nsASocketHandler()
: mCondition(NS_OK)
, mPollFlags(0)
, mPollTimeout(PR_UINT16_MAX)
{}
//
// this condition variable will be checked to determine if the socket
// handler should be detached. it must only be accessed on the socket
// thread.
//
nsresult mCondition;
//
// these flags can only be modified on the socket transport thread.
// the socket transport service will check these flags before calling
// PR_Poll.
//
PRUint16 mPollFlags;
//
// this value specifies the maximum amount of time in seconds that may be
// spent waiting for activity on this socket. if this timeout is reached,
// then OnSocketReady will be called with outFlags = -1.
//
// the default value for this member is PR_UINT16_MAX, which disables the
// timeout error checking. (i.e., a timeout value of PR_UINT16_MAX is
// never reached.)
//
PRUint16 mPollTimeout;
//
// called to service a socket
//
// params:
// socketRef - socket identifier
// fd - socket file descriptor
// outFlags - value of PR_PollDesc::out_flags after PR_Poll returns
// or -1 if a timeout occured
//
virtual void OnSocketReady(PRFileDesc *fd, PRInt16 outFlags) = 0;
//
// called when a socket is no longer under the control of the socket
// transport service. the socket handler may close the socket at this
// point. after this call returns, the handler will no longer be owned
// by the socket transport service.
//
virtual void OnSocketDetached(PRFileDesc *fd) = 0;
};
#endif // !nsASocketHandler_h__