xrootd
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#include <XrdClPostMasterInterfaces.hh>
Public Types | |
enum | Action { None = 0x0000 , Nop = 0x0001 , Ignore = 0x0002 , RemoveHandler = 0x0004 , Raw = 0x0008 , NoProcess = 0x0010 , Corrupted = 0x0020 , More = 0x0040 } |
Actions to be taken after a message is processed by the handler. More... | |
enum | StreamEvent { Ready = 1 , Broken = 2 , Timeout = 3 , FatalError = 4 } |
Events that may have occurred to the stream. More... | |
Public Member Functions | |
virtual | ~MsgHandler () |
Event types that the message handler may receive. | |
virtual uint16_t | Examine (std::shared_ptr< Message > &msg)=0 |
virtual uint16_t | InspectStatusRsp ()=0 |
virtual uint16_t | GetSid () const =0 |
virtual void | Process () |
virtual XRootDStatus | ReadMessageBody (Message *msg, Socket *socket, uint32_t &bytesRead) |
virtual uint8_t | OnStreamEvent (StreamEvent event, XRootDStatus status) |
virtual void | OnStatusReady (const Message *message, XRootDStatus status)=0 |
The requested action has been performed and the status is available. | |
virtual void | OnReadyToSend (Message *msg) |
virtual bool | IsRaw () const |
virtual XRootDStatus | WriteMessageBody (Socket *socket, uint32_t &bytesWritten) |
virtual time_t | GetExpiration ()=0 |
Message handler.
Actions to be taken after a message is processed by the handler.
Events that may have occurred to the stream.
Enumerator | |
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Ready | The stream has become connected. |
Broken | The stream is broken. |
Timeout | The declared timeout has occurred. |
FatalError | Stream has been broken and won't be recovered. |
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inlinevirtual |
Event types that the message handler may receive.
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pure virtual |
Examine an incoming message, and decide on the action to be taken
msg | the message, may be zero if receive failed |
Implemented in XrdCl::XRootDMsgHandler.
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pure virtual |
Implemented in XrdCl::XRootDMsgHandler.
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pure virtual |
Get handler sid
return sid of the corresponding request, otherwise 0
Implemented in XrdCl::XRootDMsgHandler.
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pure virtual |
Reexamine the incoming message, and decide on the action to be taken
In case of kXR_status the message can be only fully examined after reading the whole body (without raw data).
msg | the message, may be zero if receive failed |
Implemented in XrdCl::XRootDMsgHandler.
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inlinevirtual |
Determines whether the handler wants to write some data directly to the socket after the message (or message header) has been sent, WriteMessageBody will be called
Reimplemented in XrdCl::XRootDMsgHandler.
Referenced by XrdCl::AsyncMsgWriter::Write().
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inlinevirtual |
Called just before the message is going to be sent through a valid connection, so that the user can still make some modifications that were impossible before (ie. protocol version dependent adjustments)
msg | message concerned |
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pure virtual |
The requested action has been performed and the status is available.
Implemented in XrdCl::XRootDMsgHandler.
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inlinevirtual |
Handle an event other that a message arrival
event | type of the event |
status | status info |
Reimplemented in XrdCl::XRootDMsgHandler.
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inlinevirtual |
Process the message if it was "taken" by the examine action
msg | the message to be processed |
Reimplemented in XrdCl::XRootDMsgHandler.
Referenced by XrdCl::Stream::HandleIncMsgJob::Run().
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inlinevirtual |
Read message body directly from a socket - called if Examine returns Raw flag - only socket related errors may be returned here
msg | the corresponding message header |
socket | the socket to read from |
bytesRead | number of bytes read by the method |
Reimplemented in XrdCl::XRootDMsgHandler.
References XrdCl::stOK, and XrdCl::suDone.
Referenced by XrdCl::AsyncMsgReader::Read().
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inlinevirtual |
Write message body directly to a socket - called if IsRaw returns true - only socket related errors may be returned here
socket | the socket to read from |
bytesWritten | number of bytes written by the method |
Reimplemented in XrdCl::XRootDMsgHandler.
Referenced by XrdCl::AsyncMsgWriter::Write().