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Diffstat (limited to 'examples/Threads/future1.cpp')
| -rw-r--r-- | examples/Threads/future1.cpp | 419 |
1 files changed, 0 insertions, 419 deletions
diff --git a/examples/Threads/future1.cpp b/examples/Threads/future1.cpp deleted file mode 100644 index 6455150ee3c..00000000000 --- a/examples/Threads/future1.cpp +++ /dev/null @@ -1,419 +0,0 @@ -// $Id$ - -// ============================================================================ -// -// = LIBRARY -// tests -// -// = FILENAME -// Test_Future.cpp -// -// = DESCRIPTION -// This example tests the ACE Future. -// -// = AUTHOR -// Andres Kruse <Andres.Kruse@cern.ch> and Douglas C. Schmidt -// <schmidt@cs.wustl.edu> -// -// ============================================================================ - -#include "ace/ACE.h" -#include "ace/Task.h" -#include "ace/Synch.h" -#include "ace/Message_Queue.h" -#include "ace/Future.h" -#include "ace/Method_Request.h" -#include "ace/Activation_Queue.h" -#include "ace/Auto_Ptr.h" - -ACE_RCSID(Threads, future1, "$Id$") - -#if defined (ACE_HAS_THREADS) - -typedef ACE_Atomic_Op<ACE_Thread_Mutex, int> ATOMIC_INT; - -// a counter for the tasks.. -static ATOMIC_INT task_count (0); - -// a counter for the futures.. -static ATOMIC_INT future_count (0); -static ATOMIC_INT future_no (0); - -// a counter for the capsules.. -static ATOMIC_INT capsule_count (0); -static ATOMIC_INT capsule_no (0); - -// a counter for the method objects... -static ATOMIC_INT methodobject_count (0); -static ATOMIC_INT methodobject_no (0); - -class Scheduler : public ACE_Task_Base - // = TITLE - // Active Object Scheduler. -{ - friend class Method_RequestWork; -public: - Scheduler (const char *, Scheduler * = 0); - virtual ~Scheduler (void); - - virtual int open (void *args = 0); - virtual int close (u_long flags = 0); - virtual int svc (void); - - ACE_Future<u_long> work (u_long param, int count = 1); - ACE_Future<const char*> name (void); - void end (void); - - u_long work_i (u_long, int); - const char *name_i (void); - -private: - char *name_; - ACE_Activation_Queue activation_queue_; - Scheduler *scheduler_; -}; - -class Method_Request_work : public ACE_Method_Request - // = TITLE - // Reification of the <work> method. -{ -public: - Method_Request_work (Scheduler *, u_long, int, ACE_Future<u_long> &); - virtual ~Method_Request_work (void); - virtual int call (void); - -private: - Scheduler *scheduler_; - u_long param_; - int count_; - ACE_Future<u_long> future_result_; -}; - -Method_Request_work::Method_Request_work (Scheduler* new_Scheduler, - u_long new_param, - int new_count, - ACE_Future<u_long> &new_result) - : scheduler_ (new_Scheduler), - param_ (new_param), - count_ (new_count), - future_result_ (new_result) -{ - ACE_DEBUG ((LM_DEBUG, - "(%t) Method_Request_work created\n")); -} - -Method_Request_work::~Method_Request_work (void) -{ - ACE_DEBUG ((LM_DEBUG, "(%t) Method_Request_work will be deleted.\n")); -} - - -int -Method_Request_work::call (void) -{ - return this->future_result_.set (this->scheduler_->work_i (this->param_, this->count_)); -} - -class Method_Request_name : public ACE_Method_Request - // = TITLE - // Reification of the <name> method. -{ -public: - Method_Request_name (Scheduler *, ACE_Future<const char*> &); - virtual ~Method_Request_name (void); - virtual int call (void); - -private: - Scheduler *scheduler_; - ACE_Future<const char *> future_result_; -}; - -Method_Request_name::Method_Request_name (Scheduler *new_scheduler, - ACE_Future<const char *> &new_result) - : scheduler_ (new_scheduler), - future_result_ (new_result) -{ - ACE_DEBUG ((LM_DEBUG, - "(%t) Method_Request_name created\n")); -} - -Method_Request_name::~Method_Request_name (void) -{ - ACE_DEBUG ((LM_DEBUG, - "(%t) Method_Request_name will be deleted.\n")); -} - -int -Method_Request_name::call (void) -{ - return future_result_.set (scheduler_->name_i ()); -} - -class Method_Request_end : public ACE_Method_Request - // = TITLE - // Reification of the <end> method. -{ -public: - Method_Request_end (Scheduler *new_scheduler): scheduler_ (new_scheduler) {} - virtual ~Method_Request_end (void) {} - virtual int call (void) { return -1; } - -private: - Scheduler *scheduler_; - // Keep track of our scheduler. -}; - -// Constructor. -Scheduler::Scheduler (const char *newname, - Scheduler *new_scheduler) -{ - ACE_NEW (this->name_, char[ACE_OS::strlen (newname) + 1]); - ACE_OS::strcpy (this->name_, newname); - this->scheduler_ = new_scheduler; - ACE_DEBUG ((LM_DEBUG, "(%t) Scheduler %s created\n", this->name_)); -} - -// Destructor -Scheduler::~Scheduler (void) -{ - ACE_DEBUG ((LM_DEBUG, "(%t) Scheduler %s will be destroyed\n", this->name_)); - delete [] this->name_; -} - -// open -int -Scheduler::open (void *) -{ - task_count++; - ACE_DEBUG ((LM_DEBUG, "(%t) Scheduler %s open\n", this->name_)); - return this->activate (THR_BOUND); -} - -// close -int -Scheduler::close (u_long) -{ - ACE_DEBUG ((LM_DEBUG, "(%t) Scheduler %s close\n", this->name_)); - task_count--; - return 0; -} - -// service.. -int -Scheduler::svc (void) -{ - for (;;) - { - // Dequeue the next method object (we use an auto pointer in - // case an exception is thrown in the <call>). - auto_ptr<ACE_Method_Request> mo (this->activation_queue_.dequeue ()); - - ACE_DEBUG ((LM_DEBUG, "(%t) calling method object\n")); - // Call it. - if (mo->call () == -1) - break; - // Destructor automatically deletes it. - } - - /* NOTREACHED */ - return 0; -} - -void -Scheduler::end (void) -{ - this->activation_queue_.enqueue (new Method_Request_end (this)); -} - - -// Here's where the Work takes place. -u_long -Scheduler::work_i (u_long param, - int count) -{ - ACE_UNUSED_ARG (count); - - return ACE::is_prime (param, 2, param / 2); -} - -const char * -Scheduler::name_i (void) -{ - char *the_name; - - ACE_NEW_RETURN (the_name, char[ACE_OS::strlen (this->name_) + 1], 0); - ACE_OS::strcpy (the_name, this->name_); - - return the_name; -} - -ACE_Future<const char *> -Scheduler::name (void) -{ - if (this->scheduler_) - // Delegate to the Scheduler. - return this->scheduler_->name (); - else - { - ACE_Future<const char*> new_future; - - // @@ What happens if new fails here? - this->activation_queue_.enqueue - (new Method_Request_name (this, new_future)); - - return new_future; - } -} - -ACE_Future<u_long> -Scheduler::work (u_long newparam, - int newcount) -{ - if (this->scheduler_) { - return this->scheduler_->work (newparam, newcount); - } - else { - ACE_Future<u_long> new_future; - - this->activation_queue_.enqueue - (new Method_Request_work (this, newparam, newcount, new_future)); - return new_future; - } -} - -// @@ These values should be set by the command line options! - -// Total number of loops. -static size_t n_loops = 100; - -int -main (int, char *[]) -{ - Scheduler *andres, *peter, *helmut, *matias; - - // Create active objects.. - // @@ Should "open" be subsumed within the constructor of - // Scheduler()? - ACE_NEW_RETURN (andres, Scheduler ("andres"), -1); - andres->open (); - ACE_NEW_RETURN (peter, Scheduler ("peter"), -1); - peter->open (); - ACE_NEW_RETURN (helmut, Scheduler ("helmut"), -1); - helmut->open (); - - // Matias passes all asynchronous method calls on to Andres... - ACE_NEW_RETURN (matias, Scheduler ("matias", andres), -1); - matias->open (); - - for (size_t i = 0; i < n_loops; i++) - { - { - ACE_Future<u_long> fresulta, fresultb, fresultc, fresultd, fresulte; - ACE_Future<const char *> fname; - - ACE_DEBUG ((LM_DEBUG, "(%t) going to do a non-blocking call\n")); - - fresulta = andres->work (9013); - fresultb = peter->work (9013); - fresultc = helmut->work (9013); - fresultd = matias->work (9013); - fname = andres->name (); - - // see if the result is available... - if (fresulta.ready ()) - ACE_DEBUG ((LM_DEBUG, "(%t) wow.. work is ready.....\n")); - - ACE_DEBUG ((LM_DEBUG, "(%t) non-blocking call done... now blocking...\n")); - - // Save the result of fresulta. - - fresulte = fresulta; - - if (i % 3 == 0) - { - // Every 3rd time... disconnect the futures... - // but "fresulte" should still contain the result... - fresulta.cancel (10); - fresultb.cancel (20); - fresultc.cancel (30); - fresultd.cancel (40); - } - - u_long resulta = 0, resultb = 0, resultc = 0, resultd = 0, resulte = 0; - - fresulta.get (resulta); - fresultb.get (resultb); - fresultc.get (resultc); - fresultd.get (resultd); - fresulte.get (resulte); - - ACE_DEBUG ((LM_DEBUG, "(%t) result a %u\n", (u_int) resulte)); - ACE_DEBUG ((LM_DEBUG, "(%t) result b %u\n", (u_int) resulta)); - ACE_DEBUG ((LM_DEBUG, "(%t) result c %u\n", (u_int) resultb)); - ACE_DEBUG ((LM_DEBUG, "(%t) result d %u\n", (u_int) resultc)); - ACE_DEBUG ((LM_DEBUG, "(%t) result e %u\n", (u_int) resultd)); - - const char *name; - - fname.get (name); - - ACE_DEBUG ((LM_DEBUG, "(%t) name %s\n", name)); - delete [] (char *) name; - } - - ACE_DEBUG ((LM_DEBUG, - "(%t) task_count %d future_count %d capsule_count %d methodobject_count %d\n", - task_count.value (), - future_count.value (), - capsule_count.value (), - methodobject_count.value ())); - } - - // Close things down. - andres->end (); - peter->end (); - helmut->end (); - matias->end (); - - ACE_OS::sleep (2); - - ACE_DEBUG ((LM_DEBUG, - "(%t) task_count %d future_count %d capsule_count %d methodobject_count %d\n", - task_count.value (), - future_count.value (), - capsule_count.value (), - methodobject_count.value ())); - - ACE_DEBUG ((LM_DEBUG,"(%t) th' that's all folks!\n")); - - ACE_OS::sleep (5); - return 0; -} - -#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION) -template class ACE_Atomic_Op<ACE_Thread_Mutex, int>; -template class ACE_Future<const char *>; -template class ACE_Future<u_long>; -template class ACE_Future_Rep<char const *>; -template class ACE_Future_Rep<u_long>; -template class auto_ptr<ACE_Method_Request>; -template class ACE_Auto_Basic_Ptr<ACE_Method_Request>; -#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA) -#pragma instantiate ACE_Atomic_Op<ACE_Thread_Mutex, int> -#pragma instantiate ACE_Future<const char *> -#pragma instantiate ACE_Future<u_long> -#pragma instantiate ACE_Future_Rep<char const *> -#pragma instantiate ACE_Future_Rep<u_long> -#pragma instantiate auto_ptr<ACE_Method_Request> -#pragma instantiate ACE_Auto_Basic_Ptr<ACE_Method_Request> -#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */ - - -#else -int -main (int, char *[]) -{ - ACE_ERROR ((LM_ERROR, "threads not supported on this platform\n")); - return 0; -} -#endif /* ACE_HAS_THREADS */ |