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Diffstat (limited to 'apps/Gateway/Gateway/IO_Handler.h')
| -rw-r--r-- | apps/Gateway/Gateway/IO_Handler.h | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/apps/Gateway/Gateway/IO_Handler.h b/apps/Gateway/Gateway/IO_Handler.h deleted file mode 100644 index 7bda073f09b..00000000000 --- a/apps/Gateway/Gateway/IO_Handler.h +++ /dev/null @@ -1,224 +0,0 @@ -/* -*- C++ -*- */ -// $Id$ - -// ============================================================================ -// -// = LIBRARY -// apps -// -// = FILENAME -// IO_Handler.h -// -// = AUTHOR -// Doug Schmidt -// -// ============================================================================ - -#if !defined (_IO_HANDLER) -#define _IO_HANDLER - -#include "ace/Service_Config.h" -#include "ace/SOCK_Connector.h" -#include "ace/Svc_Handler.h" -#include "Consumer_Map.h" -#include "Consumer_Entry.h" -#include "Event.h" - -// Forward declaration. -class IO_Handler_Connector; - -class IO_Handler : public ACE_Svc_Handler<ACE_SOCK_STREAM, SYNCH_STRATEGY> - // = TITLE - // IO_Handler contains info about connection state and addressing. - // - // = DESCRIPTION - // The IO_Handler classes process events sent from the peers to the - // gateway. These classes works as follows: - // - // 1. IO_Handler_Connector creates a number of connections with the set of - // peers specified in a configuration file. - // - // 2. For each peer that connects successfully, IO_Handler_Connector - // creates an IO_Handler object. Each object assigns a unique routing - // id to its associated peer. The Handlers are used by gatewayd - // that to receive, route, and forward events from source peer(s) - // to destination peer(s). -{ -public: - IO_Handler (Consumer_Map *, - IO_Handler_Connector *, - ACE_Thread_Manager * = 0, - int socket_queue_size = 0); - - virtual int open (void * = 0); - // Initialize and activate a single-threaded IO_Handler (called by - // ACE_Connector::handle_output()). - - int bind (const ACE_INET_Addr &remote_addr, - const ACE_INET_Addr &local_addr, - CONN_ID); - // Set the peer's addressing and routing information. - - ACE_INET_Addr &remote_addr (void); - // Returns the peer's routing address. - - ACE_INET_Addr &local_addr (void); - // Returns our local address. - - // = Set/get routing id. - CONN_ID id (void); - void id (CONN_ID); - - // = Set/get the current state of the IO_Handler. - enum State - { - IDLE = 1, // Prior to initialization. - CONNECTING, // During connection establishment. - ESTABLISHED, // IO_Handler is established and active. - DISCONNECTING, // IO_Handler is in the process of connecting. - FAILED // IO_Handler has failed. - }; - - // = Set/get the current state. - State state (void); - void state (State); - - // = Set/get the current retry timeout delay. - int timeout (void); - void timeout (int); - - // = Set/get the maximum retry timeout delay. - int max_timeout (void); - void max_timeout (int); - - // = Set/get IO_Handler activity status. - int active (void); - void active (int); - - // = Set/get direction (necessary for error checking). - char direction (void); - void direction (char); - - // = The total number of bytes sent/received on this channel. - size_t total_bytes (void); - void total_bytes (size_t bytes); - // Increment count by <bytes>. - - virtual int handle_timeout (const ACE_Time_Value &, const void *arg); - // Perform timer-based IO_Handler reconnection. - -protected: - enum - { - MAX_RETRY_TIMEOUT = 300 // 5 minutes is the maximum timeout. - }; - - int initialize_connection (void); - // Perform the first-time initiation of a connection to the peer. - - int reinitiate_connection (void); - // Reinitiate a connection asynchronously when peers fail. - - void socket_queue_size (void); - // Set the socket queue size. - - virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE, - ACE_Reactor_Mask = ACE_Event_Handler::RWE_MASK); - // Perform IO_Handler termination. - - Consumer_Map *consumer_map_; - // Pointer to table that maps an event - // to a Set of IO_Handler *'s for output. - - ACE_INET_Addr remote_addr_; - // Address of peer. - - ACE_INET_Addr local_addr_; - // Address of us. - - CONN_ID id_; - // The assigned routing ID of this entry. - - size_t total_bytes_; - // The total number of bytes sent/received on this channel. - - State state_; - // The current state of the channel. - - IO_Handler_Connector *connector_; - // Back pointer to IO_Handler_Connector to reestablish broken - // connections. - - int timeout_; - // Amount of time to wait between reconnection attempts. - - int max_timeout_; - // Maximum amount of time to wait between reconnection attempts. - - char direction_; - // Indicates which direction data flows through the channel ('O' == - // output and 'I' == input). - - int socket_queue_size_; - // Size of the socket queue (0 means "use default"). -}; - -class Supplier_Handler : public IO_Handler - // = TITLE - // Handle reception of Peer events arriving as events. -{ -public: - Supplier_Handler (Consumer_Map *, - IO_Handler_Connector *, - ACE_Thread_Manager * = 0, - int socket_queue_size = 0); - // Constructor sets the consumer map pointer. - - virtual int handle_input (ACE_HANDLE = ACE_INVALID_HANDLE); - // Receive and process peer events. - -protected: - virtual int recv (ACE_Message_Block *&); - // Receive an event from a Supplier. - - int forward (ACE_Message_Block *event); - // Forward the Event to a Consumer. - - ACE_Message_Block *msg_frag_; - // Keep track of event fragment to handle non-blocking recv's from - // Suppliers. -}; - -class Consumer_Handler : public IO_Handler - // = TITLE - // Handle transmission of events to other Peers using a - // single-threaded approach. -{ -public: - Consumer_Handler (Consumer_Map *, - IO_Handler_Connector *, - ACE_Thread_Manager * = 0, - int socket_queue_size = 0); - - virtual int put (ACE_Message_Block *, ACE_Time_Value * = 0); - // Send an event to a Consumer (may be queued if necessary). - -protected: - // = We'll allow up to 16 megabytes to be queued per-output - // channel. - enum {QUEUE_SIZE = 1024 * 1024 * 16}; - - virtual int handle_input (ACE_HANDLE); - // Receive and process shutdowns from a Consumer. - - virtual int handle_output (ACE_HANDLE); - // Finish sending event when flow control conditions abate. - - int nonblk_put (ACE_Message_Block *mb); - // Perform a non-blocking put(). - - virtual ssize_t send (ACE_Message_Block *); - // Send an event to a Consumer. -}; - -#endif /* _IO_HANDLER */ |