PTLib  Version 2.10.10
PSNMP Class Reference

A descendant of PUDPSocket which can perform SNMP calls. More...

#include <psnmp.h>

Inheritance diagram for PSNMP:
PIndirectChannel PChannel PObject PSNMPClient PSNMPServer

Public Types

enum  ErrorType {
  NoError = 0, TooBig = 1, NoSuchName = 2, BadValue = 3,
  ReadOnly = 4, GenErr = 5, NoResponse, MalformedResponse,
  SendFailed, RxBufferTooSmall, TxDataTooBig, NumErrors
}
 
enum  RequestType {
  GetRequest = 0, GetNextRequest = 1, GetResponse = 2, SetRequest = 3,
  Trap = 4
}
 
enum  { TrapPort = 162 }
 
enum  TrapType {
  ColdStart = 0, WarmStart = 1, LinkDown = 2, LinkUp = 3,
  AuthenticationFailure = 4, EGPNeighbourLoss = 5, EnterpriseSpecific = 6, NumTrapTypes
}
 
typedef list< pair< PString, PRFC1155_ObjectSyntax > > BindingList
 
- Public Types inherited from PChannel
enum  PXBlockType { PXReadBlock, PXWriteBlock, PXAcceptBlock, PXConnectBlock }
 
enum  ShutdownValue { ShutdownRead = 0, ShutdownWrite = 1, ShutdownReadAndWrite = 2 }
 
enum  Errors {
  NoError, NotFound, FileExists, DiskFull,
  AccessDenied, DeviceInUse, BadParameter, NoMemory,
  NotOpen, Timeout, Interrupted, BufferTooSmall,
  Miscellaneous, ProtocolFailure, NumNormalisedErrors
}
 Normalised error codes. More...
 
enum  ErrorGroup { LastReadError, LastWriteError, LastGeneralError, NumErrorGroups }
 Error groups. More...
 
typedef std::vector< SliceVectorOfSlice
 
- Public Types inherited from PObject
enum  Comparison { LessThan = -1, EqualTo = 0, GreaterThan = 1 }
 Result of the comparison operation performed by the Compare() function. More...
 

Static Public Member Functions

static PString GetErrorText (ErrorType err)
 
static PString GetTrapTypeText (PINDEX code)
 
static void SendEnterpriseTrap (const PIPSocket::Address &addr, const PString &community, const PString &enterprise, PINDEX specificTrap, PASNUnsigned timeTicks, WORD sendPort=TrapPort)
 
static void SendEnterpriseTrap (const PIPSocket::Address &addr, const PString &community, const PString &enterprise, PINDEX specificTrap, PASNUnsigned timeTicks, const PSNMPVarBindingList &vars, WORD sendPort=TrapPort)
 
static void SendTrap (const PIPSocket::Address &addr, PSNMP::TrapType trapType, const PString &community, const PString &enterprise, PINDEX specificTrap, PASNUnsigned timeTicks, const PSNMPVarBindingList &vars, WORD sendPort=TrapPort)
 
static void SendTrap (const PIPSocket::Address &addr, PSNMP::TrapType trapType, const PString &community, const PString &enterprise, PINDEX specificTrap, PASNUnsigned timeTicks, const PSNMPVarBindingList &vars, const PIPSocket::Address &agentAddress, WORD sendPort=TrapPort)
 
static void WriteTrap (PChannel &channel, PSNMP::TrapType trapType, const PString &community, const PString &enterprise, PINDEX specificTrap, PASNUnsigned timeTicks, const PSNMPVarBindingList &vars, const PIPSocket::Address &agentAddress)
 
- Static Public Member Functions inherited from PChannel
static PBoolean ConvertOSError (int libcReturnValue, Errors &lastError, int &osError)
 Convert an operating system error into platform independent error. More...
 
static PString GetErrorText (Errors lastError, int osError=0)
 Get error message description. More...
 
- Static Public Member Functions inherited from PObject
static const char * Class ()
 Get the name of the class as a C string. More...
 
static Comparison InternalCompareObjectMemoryDirect (const PObject *obj1, const PObject *obj2, PINDEX size)
 Internal function caled from CompareObjectMemoryDirect() More...
 

Additional Inherited Members

- Public Member Functions inherited from PIndirectChannel
 PIndirectChannel ()
 Create a new indirect channel without any channels to redirect to. More...
 
 ~PIndirectChannel ()
 Close the indirect channel, deleting read/write channels if desired. More...
 
Comparison Compare (const PObject &obj) const
 Determine if the two objects refer to the same indirect channel. More...
 
virtual PString GetName () const
 Get the name of the channel. More...
 
virtual PBoolean Close ()
 Close the channel. More...
 
virtual PBoolean IsOpen () const
 Determine if the channel is currently open and read and write operations can be executed on it. More...
 
virtual PBoolean Read (void *buf, PINDEX len)
 Low level read from the channel. More...
 
virtual PBoolean Write (const void *buf, PINDEX len)
 Low level write to the channel. More...
 
virtual PBoolean Shutdown (ShutdownValue option)
 Close one or both of the data streams associated with a channel. More...
 
virtual bool SetLocalEcho (bool localEcho)
 Set local echo mode. More...
 
virtual PChannelGetBaseReadChannel () const
 This function returns the eventual base channel for reading of a series of indirect channels provided by descendents of PIndirectChannel. More...
 
virtual PChannelGetBaseWriteChannel () const
 This function returns the eventual base channel for writing of a series of indirect channels provided by descendents of PIndirectChannel. More...
 
virtual PString GetErrorText (ErrorGroup group=NumErrorGroups) const
 Get error message description. More...
 
PBoolean Open (PChannel &channel)
 Set the channel for both read and write operations. More...
 
PBoolean Open (PChannel *channel, PBoolean autoDelete=true)
 Set the channel for both read and write operations. More...
 
PBoolean Open (PChannel *readChannel, PChannel *writeChannel, PBoolean autoDeleteRead=true, PBoolean autoDeleteWrite=true)
 Set the channel for both read and write operations. More...
 
PChannelGetReadChannel () const
 Get the channel used for read operations. More...
 
bool SetReadChannel (PChannel *channel, bool autoDelete=true, bool closeExisting=false)
 Set the channel for read operations. More...
 
PChannelGetWriteChannel () const
 Get the channel used for write operations. More...
 
PBoolean SetWriteChannel (PChannel *channel, bool autoDelete=true, bool closeExisting=false)
 Set the channel for read operations. More...
 
- Public Member Functions inherited from PChannel
PBoolean SetErrorValues (Errors errorCode, int osError, ErrorGroup group=LastGeneralError)
 Set error values to those specified. More...
 
 PChannel ()
 Create the channel. More...
 
 ~PChannel ()
 Close down the channel. More...
 
virtual PINDEX HashFunction () const
 Calculate a hash value for use in sets and dictionaries. More...
 
int GetHandle () const
 Get the integer operating system handle for the channel. More...
 
void SetReadTimeout (const PTimeInterval &time)
 Set the timeout for read operations. More...
 
PTimeInterval GetReadTimeout () const
 Get the timeout for read operations. More...
 
virtual PINDEX GetLastReadCount () const
 Get the number of bytes read by the last Read() call. More...
 
virtual int ReadChar ()
 Read a single 8 bit byte from the channel. More...
 
PBoolean ReadBlock (void *buf, PINDEX len)
 Read len bytes into the buffer from the channel. More...
 
PString ReadString (PINDEX len)
 Read len character into a string from the channel. More...
 
virtual PBoolean ReadAsync (void *buf, PINDEX len)
 Begin an asynchronous read from channel. More...
 
virtual void OnReadComplete (void *buf, PINDEX len)
 User callback function for when a ReadAsync() call has completed or timed out. More...
 
void SetWriteTimeout (const PTimeInterval &time)
 Set the timeout for write operations to complete. More...
 
PTimeInterval GetWriteTimeout () const
 Get the timeout for write operations to complete. More...
 
virtual PBoolean Write (const void *buf, PINDEX len, const void *mark)
 Low level write to the channel with marker. More...
 
virtual PINDEX GetLastWriteCount () const
 Get the number of bytes written by the last Write() call. More...
 
PBoolean WriteChar (int c)
 Write a single character to the channel. More...
 
PBoolean WriteString (const PString &str)
 Write a string to the channel. More...
 
virtual PBoolean WriteAsync (const void *buf, PINDEX len)
 Begin an asynchronous write from channel. More...
 
virtual void OnWriteComplete (const void *buf, PINDEX len)
 User callback function for when a WriteAsync() call has completed or timed out. More...
 
virtual bool FlowControl (const void *flowData)
 Flow Control information Pass data to the channel for flowControl determination. More...
 
PBoolean SetBufferSize (PINDEX newSize)
 Set the iostream buffer size for reads and writes. More...
 
PBoolean SendCommandString (const PString &command)
 Send a command meta-string. More...
 
void AbortCommandString ()
 Abort a command string that is in progress. More...
 
Errors GetErrorCode (ErrorGroup group=NumErrorGroups) const
 Get normalised error code. More...
 
int GetErrorNumber (ErrorGroup group=NumErrorGroups) const
 Get OS errro code. More...
 
virtual PBoolean Read (const VectorOfSlice &slices)
 Low level scattered read from the channel. More...
 
virtual PBoolean Write (const VectorOfSlice &slices)
 Low level scattered write to the channel. More...
 
- Public Member Functions inherited from PObject
virtual ~PObject ()
 
virtual PObjectClone () const
 Create a copy of the class on the heap. More...
 
virtual const char * GetClass (unsigned ancestor=0) const
 Get the current dynamic type of the object instance. More...
 
PBoolean IsClass (const char *cls) const
 
virtual PBoolean InternalIsDescendant (const char *clsName) const
 Determine if the dynamic type of the current instance is a descendent of the specified class. More...
 
virtual Comparison CompareObjectMemoryDirect (const PObject &obj) const
 Determine the byte wise comparison of two objects. More...
 
bool operator== (const PObject &obj) const
 Compare the two objects. More...
 
bool operator!= (const PObject &obj) const
 Compare the two objects. More...
 
bool operator< (const PObject &obj) const
 Compare the two objects. More...
 
bool operator> (const PObject &obj) const
 Compare the two objects. More...
 
bool operator<= (const PObject &obj) const
 Compare the two objects. More...
 
bool operator>= (const PObject &obj) const
 Compare the two objects. More...
 
virtual void PrintOn (ostream &strm) const
 Output the contents of the object to the stream. More...
 
virtual void ReadFrom (istream &strm)
 Input the contents of the object from the stream. More...
 
- Protected Member Functions inherited from PIndirectChannel
virtual PBoolean OnOpen ()
 This callback is executed when the Open() function is called with open channels. More...
 
- Protected Member Functions inherited from PChannel
 PChannel (const PChannel &)
 
PChanneloperator= (const PChannel &)
 
virtual PBoolean ConvertOSError (int libcReturnValue, ErrorGroup group=LastGeneralError)
 Convert an operating system error into platform independent error. More...
 
int ReadCharWithTimeout (PTimeInterval &timeout)
 Read a character with specified timeout. More...
 
PBoolean ReceiveCommandString (int nextChar, const PString &reply, PINDEX &pos, PINDEX start)
 
PBoolean PXSetIOBlock (PXBlockType type, const PTimeInterval &timeout)
 
int PXClose ()
 
- Protected Member Functions inherited from PObject
 PObject ()
 Constructor for PObject, made protected so cannot ever create one on its own. More...
 
- Protected Attributes inherited from PIndirectChannel
PChannelreadChannel
 Channel for read operations. More...
 
PBoolean readAutoDelete
 Automatically delete read channel on destruction. More...
 
PChannelwriteChannel
 Channel for write operations. More...
 
PBoolean writeAutoDelete
 Automatically delete write channel on destruction. More...
 
PReadWriteMutex channelPointerMutex
 Race condition prevention on closing channel. More...
 
- Protected Attributes inherited from PChannel
int os_handle
 The operating system file handle return by standard open() function. More...
 
Errors lastErrorCode [NumErrorGroups+1]
 The platform independant error code. More...
 
int lastErrorNumber [NumErrorGroups+1]
 The operating system error number (eg as returned by errno). More...
 
PINDEX lastReadCount
 Number of byte last read by the Read() function. More...
 
PINDEX lastWriteCount
 Number of byte last written by the Write() function. More...
 
PTimeInterval readTimeout
 Timeout for read operations. More...
 
PTimeInterval writeTimeout
 Timeout for write operations. More...
 
PString channelName
 
PMutex px_threadMutex
 
PXBlockType px_lastBlockType
 
PThreadpx_readThread
 
PThreadpx_writeThread
 
PMutex px_writeMutex
 
PThreadpx_selectThread [3]
 
PMutex px_selectMutex [3]
 

Detailed Description

A descendant of PUDPSocket which can perform SNMP calls.

Member Typedef Documentation

Member Enumeration Documentation

anonymous enum
Enumerator
TrapPort 
Enumerator
NoError 
TooBig 
NoSuchName 
BadValue 
ReadOnly 
GenErr 
NoResponse 
MalformedResponse 
SendFailed 
RxBufferTooSmall 
TxDataTooBig 
NumErrors 
Enumerator
GetRequest 
GetNextRequest 
GetResponse 
SetRequest 
Trap 
Enumerator
ColdStart 
WarmStart 
LinkDown 
LinkUp 
AuthenticationFailure 
EGPNeighbourLoss 
EnterpriseSpecific 
NumTrapTypes 

Member Function Documentation

static PString PSNMP::GetErrorText ( ErrorType  err)
static
static PString PSNMP::GetTrapTypeText ( PINDEX  code)
static
static void PSNMP::SendEnterpriseTrap ( const PIPSocket::Address addr,
const PString community,
const PString enterprise,
PINDEX  specificTrap,
PASNUnsigned  timeTicks,
WORD  sendPort = TrapPort 
)
static
static void PSNMP::SendEnterpriseTrap ( const PIPSocket::Address addr,
const PString community,
const PString enterprise,
PINDEX  specificTrap,
PASNUnsigned  timeTicks,
const PSNMPVarBindingList vars,
WORD  sendPort = TrapPort 
)
static
static void PSNMP::SendTrap ( const PIPSocket::Address addr,
PSNMP::TrapType  trapType,
const PString community,
const PString enterprise,
PINDEX  specificTrap,
PASNUnsigned  timeTicks,
const PSNMPVarBindingList vars,
WORD  sendPort = TrapPort 
)
static
static void PSNMP::SendTrap ( const PIPSocket::Address addr,
PSNMP::TrapType  trapType,
const PString community,
const PString enterprise,
PINDEX  specificTrap,
PASNUnsigned  timeTicks,
const PSNMPVarBindingList vars,
const PIPSocket::Address agentAddress,
WORD  sendPort = TrapPort 
)
static
static void PSNMP::WriteTrap ( PChannel channel,
PSNMP::TrapType  trapType,
const PString community,
const PString enterprise,
PINDEX  specificTrap,
PASNUnsigned  timeTicks,
const PSNMPVarBindingList vars,
const PIPSocket::Address agentAddress 
)
static

The documentation for this class was generated from the following file: