forked from mirrors/gecko-dev
102 lines
3 KiB
C++
102 lines
3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsASocketHandler_h__
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#define nsASocketHandler_h__
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#include "nsError.h"
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#include "nsINetAddr.h"
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#include "nsISupports.h"
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#include "prio.h"
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// socket handler used by nsISocketTransportService.
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// methods are only called on the socket thread.
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class nsASocketHandler : public nsISupports {
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public:
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nsASocketHandler() = default;
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//
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// this condition variable will be checked to determine if the socket
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// handler should be detached. it must only be accessed on the socket
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// thread.
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//
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nsresult mCondition{NS_OK};
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//
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// these flags can only be modified on the socket transport thread.
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// the socket transport service will check these flags before calling
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// PR_Poll.
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//
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uint16_t mPollFlags{0};
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//
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// this value specifies the maximum amount of time in seconds that may be
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// spent waiting for activity on this socket. if this timeout is reached,
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// then OnSocketReady will be called with outFlags = -1.
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//
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// the default value for this member is UINT16_MAX, which disables the
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// timeout error checking. (i.e., a timeout value of UINT16_MAX is
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// never reached.)
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//
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uint16_t mPollTimeout{UINT16_MAX};
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bool mIsPrivate{false};
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//
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// called to service a socket
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//
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// params:
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// socketRef - socket identifier
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// fd - socket file descriptor
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// outFlags - value of PR_PollDesc::out_flags after PR_Poll returns
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// or -1 if a timeout occurred
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//
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virtual void OnSocketReady(PRFileDesc* fd, int16_t outFlags) = 0;
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//
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// called when a socket is no longer under the control of the socket
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// transport service. the socket handler may close the socket at this
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// point. after this call returns, the handler will no longer be owned
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// by the socket transport service.
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//
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virtual void OnSocketDetached(PRFileDesc* fd) = 0;
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//
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// called to determine if the socket is for a local peer.
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// when used for server sockets, indicates if it only accepts local
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// connections.
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//
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virtual void IsLocal(bool* aIsLocal) = 0;
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//
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// called to determine if this socket should not be terminated when Gecko
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// is turned offline. This is mostly useful for the debugging server
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// socket.
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//
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virtual void KeepWhenOffline(bool* aKeepWhenOffline) {
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*aKeepWhenOffline = false;
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}
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//
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// called when global pref for keepalive has changed.
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//
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virtual void OnKeepaliveEnabledPrefChange(bool aEnabled) {}
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//
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// called to determine the NetAddr. addr can only be assumed to be initialized
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// when NS_OK is returned
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//
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virtual nsresult GetRemoteAddr(mozilla::net::NetAddr* addr) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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//
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// returns the number of bytes sent/transmitted over the socket
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//
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virtual uint64_t ByteCountSent() = 0;
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virtual uint64_t ByteCountReceived() = 0;
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};
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#endif // !nsASocketHandler_h__
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