PlayerCc::PlayerClient

PlayerCc::PlayerClient Class Reference

#include <playerclient.h>

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List of all members.

Detailed Description

The PlayerClient is used for communicating with the player server.

One PlayerClient object is used to control each connection to a Player server. Contained within this object are methods for changing the connection parameters and obtaining access to devices.

Since the threading functionality of the PlayerClient is built on Boost, these options are conditionally available based on the Boost threading library being present on the system. The StartThread() and StopThread() are the only functions conditionally available based on this.

Definition at line 103 of file playerclient.h.


Public Member Functions

 PlayerClient (const std::string aHostname=PLAYER_HOSTNAME, uint32_t aPort=PLAYER_PORTNUM, int transport=PLAYERC_TRANSPORT_TCP)
 Make a client and connect it as indicated.
 ~PlayerClient ()
 destructor
void StartThread ()
 Start the run thread.
void StopThread ()
 Stop the run thread.
void Run (uint32_t aTimeout=10)
 This starts a blocking loop on Read().
void Stop ()
 Stops the Run() loop.
bool Peek (uint32_t timeout=0)
 Check whether there is data waiting on the connection, blocking for up to timeout milliseconds (set to 0 to not block).
void SetRequestTimeout (uint32_t seconds)
 Set the timeout for client requests.
void SetRetryLimit (int limit)
 Set connection retry limit, which is the number of times that we'll try to reconnect to the server after a socket error.
int GetRetryLimit ()
 Get connection retry limit, which is the number of times that we'll try to reconnect to the server after a socket error.
void SetRetryTime (double time)
 Set connection retry time, which is number of seconds to wait between reconnection attempts.
double GetRetryTime ()
 Get connection retry time, which is number of seconds to wait between reconnection attempts.
void Read ()
 A blocking Read.
void ReadIfWaiting ()
 A nonblocking Read.
void SetDataMode (uint32_t aMode)
 Set whether the client operates in Push/Pull modes.
void SetReplaceRule (bool aReplace, int aType=-1, int aSubtype=-1, int aInterf=-1)
 Set a replace rule for the clients queue on the server.
void RequestDeviceList ()
 Get the list of available device ids.
std::list< playerc_device_info_t > GetDeviceList ()
std::string GetHostname () const
 Returns the hostname.
uint32_t GetPort () const
 Returns the port.
int LookupCode (std::string aName) const
 Get the interface code for a given name.
std::string LookupName (int aCode) const
 Get the name for a given interface code.
uint32_t GetOverflowCount ()
 Get count of the number of discarded messages on the server since the last call to this method.

Public Attributes

mutex_t mMutex
 A mutex for handling synchronization.

Private Types

typedef boost::thread thread_t
typedef boost::mutex mutex_t

Private Member Functions

void Connect (const std::string aHostname, uint32_t aPort)
void Disconnect ()
void RunThread ()

Private Attributes

std::list< PlayerCc::ClientProxy * > mProxyList
std::list< playerc_device_info_t > mDeviceList
playerc_client_t * mClient
std::string mHostname
uint32_t mPort
unsigned int mTransport
bool mIsStop
thread_t * mThread

Member Function Documentation

bool PlayerCc::PlayerClient::Peek ( uint32_t  timeout = 0  ) 

Check whether there is data waiting on the connection, blocking for up to timeout milliseconds (set to 0 to not block).

Returns:
  • false if there is no data waiting
  • true if there is data waiting

void PlayerCc::PlayerClient::SetRetryLimit ( int  limit  )  [inline]

Set connection retry limit, which is the number of times that we'll try to reconnect to the server after a socket error.

Set to -1 for inifinite retry.

Definition at line 192 of file playerclient.h.

References playerc_client_set_retry_limit().

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void PlayerCc::PlayerClient::Read (  ) 

A blocking Read.

Use this method to read data from the server, blocking until at least one message is received. Use PlayerClient::Peek() to check whether any data is currently waiting. In pull mode, this will block until all data waiting on the server has been received, ensuring as up to date data as possible.

void PlayerCc::PlayerClient::ReadIfWaiting (  ) 

A nonblocking Read.

Use this method if you want to read in a nonblocking manner. This is the equivalent of checking if Peek is true and then reading

void PlayerCc::PlayerClient::SetDataMode ( uint32_t  aMode  ) 

Set whether the client operates in Push/Pull modes.

You can toggle the mode in which the server sends data to your client with this method. The mode should be one of

Exceptions:
throws PlayerError if unsuccessfull

void PlayerCc::PlayerClient::SetReplaceRule ( bool  aReplace,
int  aType = -1,
int  aSubtype = -1,
int  aInterf = -1 
)

Set a replace rule for the clients queue on the server.

If a rule with the same pattern already exists, it will be replaced with the new rule (i.e., its setting to replace will be updated).

Parameters:
aReplace Should we replace these messages? true/false
aType type of message to set replace rule for (-1 for wildcard). See Message types.
aSubtype message subtype to set replace rule for (-1 for wildcard).
aInterf Interface to set replace rule for (-1 for wildcard). This can be used to set the replace rule for all members of a certain interface type. See Interface specifications.
Exceptions:
throws PlayerError if unsuccessfull
See also:
ClientProxy::SetReplaceRule, PlayerClient::SetDataMode

void PlayerCc::PlayerClient::RequestDeviceList (  ) 

Get the list of available device ids.

The data is written into the proxy structure rather than retured to the caller.

The documentation for this class was generated from the following file:
Last updated 12 September 2005 21:38:45