diff options
Diffstat (limited to 'TAO/examples/Callback_Quoter/Consumer_Input_Handler.cpp')
| -rw-r--r-- | TAO/examples/Callback_Quoter/Consumer_Input_Handler.cpp | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/TAO/examples/Callback_Quoter/Consumer_Input_Handler.cpp b/TAO/examples/Callback_Quoter/Consumer_Input_Handler.cpp deleted file mode 100644 index 3c8f999b5cb..00000000000 --- a/TAO/examples/Callback_Quoter/Consumer_Input_Handler.cpp +++ /dev/null @@ -1,399 +0,0 @@ -// $Id$ -// =========================================================== -// -// -// = LIBRARY -// TAO/examples/Callback_Quoter -// -// = FILENAME -// Consumer_Input_Handler.cpp -// -// = DESCRIPTION -// Implementation of the Consumer_Input_Handler class. -// -// = AUTHOR -// Kirthika Parameswaran <kirthika@cs.wustl.edu> -// -// =========================================================== - -#include "Consumer_Input_Handler.h" -#include "ace/Read_Buffer.h" -#include "tao/ORB.h" -#include "ace/Get_Opt.h" -#include "ace/Read_Buffer.h" -#include "ace/OS.h" - -Consumer_Input_Handler::Consumer_Input_Handler () - : ior_ (0), - shutdown_ (0), - stock_name_ ("Unknown"), - threshold_value_ (0), - server_ (), - registered_(0), - unregistered_(0) -{ -} - -Consumer_Input_Handler::~Consumer_Input_Handler (void) -{ - // Make sure to cleanup the STDIN handler. - - if (ACE_Event_Handler::remove_stdin_handler - (TAO_ORB_Core_instance ()->reactor (), - TAO_ORB_Core_instance ()->thr_mgr ()) == -1) - ACE_ERROR ((LM_ERROR, - "%p\n", - "remove_stdin_handler")); - -} - -// Reads the Server factory IOR from a file. - -int -Consumer_Input_Handler::read_ior (char *filename) -{ - // Open the file for reading. - ACE_HANDLE f_handle = ACE_OS::open (filename, 0); - - if (f_handle == ACE_INVALID_HANDLE) - ACE_ERROR_RETURN ((LM_ERROR, - "Unable to open %s for writing: %p\n", - filename), - -1); - - ACE_Read_Buffer ior_buffer (f_handle); - char *data = ior_buffer.read (); - - if (data == 0) - ACE_ERROR_RETURN ((LM_ERROR, - "Unable to read ior: %p\n"), - -1); - - this->ior_ = ACE_OS::strdup (data); - ior_buffer.alloc ()->free (data); - - ACE_OS::close (f_handle); - - return 0; -} - -// Parses the command line arguments and returns an error status. - -int -Consumer_Input_Handler::parse_args (void) -{ - ACE_Get_Opt get_opts (argc_, argv_, "d:f:xk:xs"); - int c; - int result; - - while ((c = get_opts ()) != -1) - switch (c) - { - case 'd': // debug flag - TAO_debug_level++; //**** - break; - - case 'k': // ior provide on command line - this->ior_ = ACE_OS::strdup (get_opts.optarg); - break; - - case 'f': // read the IOR from the file. - result = this->read_ior (get_opts.optarg); - if (result < 0) - ACE_ERROR_RETURN ((LM_ERROR, - "Unable to read ior from %s : %p\n", - get_opts.optarg), - -1); - break; - - case 's': // don't use the naming service - this->use_naming_service_ = 0; - break; - - case 'x': - this->shutdown_ = 1; - break; - - case '?': - default: - ACE_ERROR_RETURN ((LM_ERROR, - "usage: %s" - " [-d]" - " [-f ior-file]" - " [-k ior]" - " [-x]" - " [-s]" - "\n", - this->argv_ [0]), - -1); - } - - // Indicates successful parsing of command line. - return 0; -} - -// this method uses the naming service to obtain the server object refernce. - -int -Consumer_Input_Handler::via_naming_service (void) -{ - TAO_TRY - { - // Initialization of the naming service. - if (naming_services_client_.init (orb_.in ()) != 0) - ACE_ERROR_RETURN ((LM_ERROR, - " (%P|%t) Unable to initialize " - "the TAO_Naming_Client. \n"), - -1); - - CosNaming::Name notifier_ref_name (1); - notifier_ref_name.length (1); - notifier_ref_name[0].id = CORBA::string_dup ("Notifier"); - - CORBA::Object_var notifier_obj = - this->naming_services_client_->resolve (notifier_ref_name, - TAO_TRY_ENV); - TAO_CHECK_ENV; - - // The CORBA::Object_var object is downcast to Notifier_var using - // the <_narrow> method. - this->server_ = - Notifier::_narrow (notifier_obj.in (), - TAO_TRY_ENV); - TAO_CHECK_ENV; - - } - TAO_CATCHANY - { - TAO_TRY_ENV.print_exception ("Consumer_Input_Handler::via_naming_service\n"); - return -1; - } - TAO_ENDTRY; - - return 0; -} - -// Init function. -int -Consumer_Input_Handler::init (int argc, char **argv) -{ - this->argc_ = argc; - this->argv_ = argv; - - // Register our <Input_Handler> to handle STDIN events, which will - // trigger the <handle_input> method to process these events. - - if (ACE_Event_Handler::register_stdin_handler - (this, - TAO_ORB_Core_instance ()->reactor (), - TAO_ORB_Core_instance ()->thr_mgr ()) == -1) - ACE_ERROR_RETURN ((LM_ERROR, - "%p\n", - "register_stdin_handler"), - -1); - - TAO_TRY - { - // Retrieve the ORB. - this->orb_ = CORBA::ORB_init (this->argc_, - this->argv_, - 0, - TAO_TRY_ENV); - TAO_CHECK_ENV; - - // Parse command line and verify parameters. - if (this->parse_args () == -1) - ACE_ERROR_RETURN ((LM_ERROR, - "parse_args failed\n"), - -1); - - // use the naming service. - if (this->use_naming_service_) - return via_naming_service (); - - - if (this->ior_ == 0) - ACE_ERROR_RETURN ((LM_ERROR, - "%s: no ior specified\n", - this->argv_[0]), - -1); - - CORBA::Object_var server_object = - this->orb_->string_to_object (this->ior_, - TAO_TRY_ENV); - TAO_CHECK_ENV; - - if (CORBA::is_nil (server_object.in ())) - ACE_ERROR_RETURN ((LM_ERROR, - "invalid ior <%s>\n", - this->ior_), - -1); - - // The downcasting from CORBA::Object_var to Notifier_var is done - // using the <_narrow> method. - this->server_ = Notifier::_narrow (server_object.in (), - TAO_TRY_ENV); - - TAO_CHECK_ENV; - } - TAO_CATCHANY - { - TAO_TRY_ENV.print_exception ("Consumer_Input_Handler::init"); - return -1; - } - TAO_ENDTRY; - - return 0; -} - - -int -Consumer_Input_Handler::run (void) -{ - CORBA::Environment TAO_TRY_ENV; - - TAO_TRY - { - ACE_NEW_RETURN (this->consumer_servant_, - Consumer_i (), - -1); - // Set the orb in the consumer_ object. - this->consumer_servant_->orb (this->orb_.in ()); - - ACE_DEBUG ((LM_DEBUG, - " Services provided:\n " - " * Registration <type 'r'>\n " - " * Unregistration <type 'u'>\n " - " * Quit <type 'q'>\n ")); - - // Get the consumer stub (i.e consumer object) pointer. - this->consumer_var_ = - this->consumer_servant_->_this (TAO_TRY_ENV); - TAO_CHECK_ENV; - - // Run the ORB. - this->orb_->run (); - } - TAO_CATCHANY - { - TAO_TRY_ENV.print_exception ("Consumer_Input_Handler::run ()"); - return -1; - } - TAO_ENDTRY; - - return 0; -} - -int -Consumer_Input_Handler::handle_input (ACE_HANDLE) -{ - char buf[BUFSIZ]; - - TAO_TRY - { - // The string could read contains \n\0 hence using ACE_OS::read - // which returns the no of bytes read and hence i can manipulate - // and remove the devil from the picture i.e '\n' ! ;) - - ssize_t strlen = ACE_OS::read (ACE_STDIN, - buf, - sizeof buf); - if (buf[strlen -1] == '\n') - buf[strlen -1] = '\0'; - - ACE_DEBUG ((LM_DEBUG, - "%s", - buf)); - - // @@ Whenever you've got big giant case statements break them - // into separate helper functions. - switch (tolower (buf[0])) - { - case 'r': - { - // Get the stockname the consumer is interested in. - char stockname[BUFSIZ]; - - ACE_DEBUG ((LM_DEBUG, - "Stockname?")); - - strlen = ACE_OS::read (ACE_STDIN, - stockname, - sizeof stockname); - - if (stockname[strlen -1] == '\n') - stockname[strlen -1] = '\0'; - - this->stock_name_ = stockname; - - // Get the threshold value. - char needed_stock_value[BUFSIZ]; - ACE_DEBUG ((LM_DEBUG, - "Threshold Stock value?")); - - strlen = ACE_OS::read (ACE_STDIN, - needed_stock_value, - sizeof needed_stock_value); - - if (needed_stock_value[strlen -1] == '\n') - needed_stock_value[strlen -1] = '\0'; - - this->threshold_value_ = - ACE_OS::atoi (needed_stock_value); - - // Register with the server. - server_->register_callback (this->stock_name_, - this->threshold_value_, - this->consumer_var_.in (), - TAO_TRY_ENV); - TAO_CHECK_ENV; - - // Note the registration. - registered_ = 1; - ACE_DEBUG ((LM_DEBUG, - "registeration done!\n")); - break; - } - case 'u': - { - // Only if the consumer is registered can the - // unregistration take place. - - if (registered_ == 1) - { - this->server_->unregister_callback (this->consumer_var_.in ()); - ACE_DEBUG ((LM_DEBUG, - " Consumer Unregistered \n ")); - unregistered_ = 1; - } - else - ACE_DEBUG ((LM_DEBUG, - " Invalid Operation: Consumer not Registered\n")); - break; - } - case 'q': - { - // Only if the consumer is registered and wants to shut - // down, its necessary to unregister and then shutdown. - - if (unregistered_ != 1 && registered_ == 1) - { - this->server_->unregister_callback (this->consumer_var_.in ()); - ACE_DEBUG ((LM_DEBUG, - " Consumer Unregistered \n ")); - } - this->consumer_servant_->shutdown (TAO_TRY_ENV); - TAO_CHECK_ENV; - break; - } - } - } - TAO_CATCHANY - { - TAO_TRY_ENV.print_exception ("Input_Handler::init"); - return -1; - } - TAO_ENDTRY; - - return 0; -} |