From: curt Date: Sat, 29 Aug 1998 13:11:31 +0000 (+0000) Subject: Bernie Bright writes: X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=50ea8bd4468c8bc23e442277120a4da9ccf538c0;p=flightgear.git Bernie Bright writes: I've created some new classes to enable pointers-to-functions and pointers-to-class-methods to be treated like objects. These objects can be registered with fgEVENT_MGR. File "Include/fg_callback.hxx" contains the callback class defns. Modified fgEVENT and fgEVENT_MGR to use the callback classes. Also some minor tweaks to STL usage. Added file "Include/fg_stl_config.h" to deal with STL portability issues. I've added an initial config for egcs (and probably gcc-2.8.x). I don't have access to Visual C++ so I've left that for someone else. This file is influenced by the stl_config.h file delivered with egcs. Added "Include/auto_ptr.hxx" which contains an implementation of the STL auto_ptr class which is not provided in all STL implementations and is needed to use the callback classes. Deleted fgLightUpdate() which was just a wrapper to call fgLIGHT::Update(). Modified fg_init.cxx to register two method callbacks in place of the old wrapper functions. --- diff --git a/Time/event.cxx b/Time/event.cxx index f1ffd7ef1..4dd2d3263 100644 --- a/Time/event.cxx +++ b/Time/event.cxx @@ -39,6 +39,10 @@ // contains milliseconds #endif +#include "Include/fg_stl_config.h" +#include STL_ALGORITHM +#include STL_FUNCTIONAL + #include #include "event.hxx" @@ -47,40 +51,91 @@ fgEVENT_MGR global_events; -// run a specified event -static void RunEvent(fgEVENT *e) { - long duration; +fgEVENT::fgEVENT( const string& desc, + const fgCallback& cb, + EventState _status, + int _interval ) + : description(desc), + event_cb(cb.clone()), + status(_status), + interval(_interval), + cum_time(0), + min_time(100000), + max_time(0), + count(0) +{ +} + +fgEVENT::fgEVENT( const fgEVENT& evt ) + : description(evt.description), +#ifdef _FG_NEED_AUTO_PTR + // Ugly - cast away const until proper auto_ptr implementation. + event_cb((auto_ptr&)(evt.event_cb)), +#else + event_cb(evt.event_cb), +#endif + status(evt.status), + interval(evt.interval), + last_run(evt.last_run), + current(evt.current), + next_run(evt.next_run), + cum_time(evt.cum_time), + min_time(evt.min_time), + max_time(evt.max_time), + count(evt.count) +{ +} + +fgEVENT::~fgEVENT() +{ +// cout << "fgEVENT::~fgEVENT" << endl; +} - printf("Running %s\n", e->description); +void +fgEVENT::run() +{ + printf("Running %s\n", description.c_str() ); // record starting time - timestamp(&(e->last_run)); + timestamp( &last_run ); // run the event - (*e->event)(); + event_cb->call( (void**)NULL ); // increment the counter for this event - e->count++; + count++; // update the event status - e->status = FG_EVENT_READY; + status = FG_EVENT_READY; // calculate duration and stats - timestamp(&(e->current)); - duration = timediff(&(e->last_run), &(e->current)); + timestamp( ¤t ); + long duration = timediff( &last_run, ¤t ); - e->cum_time += duration; + cum_time += duration; - if ( duration < e->min_time ) { - e->min_time = duration; + if ( duration < min_time ) { + min_time = duration; } - if ( duration > e->max_time ) { - e->max_time = duration; + if ( duration > max_time ) { + max_time = duration; } // determine the next absolute run time - timesum(&(e->next_run), &(e->last_run), e->interval); + timesum( &next_run, &last_run, interval ); +} + + +// Dump scheduling stats +void +fgEVENT::PrintStats() const +{ + printf(" %-30s int=%.2fs cum=%ld min=%ld max=%ld count=%ld ave=%.2f\n", + description.c_str(), + interval / 1000.0, + cum_time, min_time, max_time, count, + cum_time / (double)count); } @@ -92,44 +147,25 @@ fgEVENT_MGR::fgEVENT_MGR( void ) { // Initialize the scheduling subsystem void fgEVENT_MGR::Init( void ) { printf("Initializing event manager\n"); - // clear event table - while ( event_table.size() ) { - event_table.pop_front(); - } - // clear run queue - while ( run_queue.size() ) { - run_queue.pop_front(); - } + run_queue.erase( run_queue.begin(), run_queue.end() ); + event_table.erase( event_table.begin(), event_table.end() ); } -// Register an event with the scheduler -void fgEVENT_MGR::Register(char *desc, void (*event)( void ), int status, - int interval) +// Register an event with the scheduler. +void +fgEVENT_MGR::Register( const string& desc, + const fgCallback& cb, + fgEVENT::EventState status, + int interval ) { - fgEVENT e; - - printf("Registering event: %s\n", desc); - - if ( strlen(desc) < 256 ) { - strcpy(e.description, desc); - } else { - strncpy(e.description, desc, 255); - e.description[255] = '\0'; - } - - e.event = event; - e.status = status; - e.interval = interval; + fgEVENT e( desc, cb, status, interval ); - e.cum_time = 0; - e.min_time = 100000; - e.max_time = 0; - e.count = 0; + printf("Registering event: %s\n", desc.c_str() ); // Actually run the event - RunEvent(&e); + e.run(); // Now add to event_table event_table.push_back(e); @@ -157,23 +193,16 @@ void fgEVENT_MGR::Resume( void ) { // Dump scheduling stats -void fgEVENT_MGR::PrintStats( void ) { - deque < fgEVENT > :: iterator current = event_table.begin(); - deque < fgEVENT > :: iterator last = event_table.end(); - fgEVENT e; - +void +fgEVENT_MGR::PrintStats() +{ printf("\n"); printf("Event Stats\n"); printf("-----------\n"); - while ( current != last ) { - e = *(current++); - printf(" %-20s int=%.2fs cum=%ld min=%ld max=%ld count=%ld ave=%.2f\n", - e.description, - e.interval / 1000.0, - e.cum_time, e.min_time, e.max_time, e.count, - e.cum_time / (double)e.count); - } + for_each( event_table.begin(), + event_table.end(), + mem_fun_ref( &fgEVENT::PrintStats )); printf("\n"); } @@ -202,13 +231,13 @@ void fgEVENT_MGR::Process( void ) { for ( i = 0; i < size; i++ ) { // e = *current++; e_ptr = &event_table[i]; - if ( e_ptr->status == FG_EVENT_READY ) { + if ( e_ptr->status == fgEVENT::FG_EVENT_READY ) { fgPrintf(FG_EVENT, FG_DEBUG, " Item %d, current %d, next run @ %ld\n", i, cur_time.seconds, e_ptr->next_run.seconds); if ( timediff(&cur_time, &(e_ptr->next_run)) <= 0) { run_queue.push_back(e_ptr); - e_ptr->status = FG_EVENT_QUEUED; + e_ptr->status = fgEVENT::FG_EVENT_QUEUED; } } } @@ -219,7 +248,7 @@ void fgEVENT_MGR::Process( void ) { // printf("Yep, running it\n"); e_ptr = run_queue.front(); run_queue.pop_front(); - RunEvent(e_ptr); + e_ptr->run(); } } @@ -229,12 +258,33 @@ fgEVENT_MGR::~fgEVENT_MGR( void ) { } -void fgEventPrintStats( void ) { - global_events.PrintStats(); -} - - // $Log$ +// Revision 1.7 1998/08/29 13:11:31 curt +// Bernie Bright writes: +// I've created some new classes to enable pointers-to-functions and +// pointers-to-class-methods to be treated like objects. These objects +// can be registered with fgEVENT_MGR. +// +// File "Include/fg_callback.hxx" contains the callback class defns. +// +// Modified fgEVENT and fgEVENT_MGR to use the callback classes. Also +// some minor tweaks to STL usage. +// +// Added file "Include/fg_stl_config.h" to deal with STL portability +// issues. I've added an initial config for egcs (and probably gcc-2.8.x). +// I don't have access to Visual C++ so I've left that for someone else. +// This file is influenced by the stl_config.h file delivered with egcs. +// +// Added "Include/auto_ptr.hxx" which contains an implementation of the +// STL auto_ptr class which is not provided in all STL implementations +// and is needed to use the callback classes. +// +// Deleted fgLightUpdate() which was just a wrapper to call +// fgLIGHT::Update(). +// +// Modified fg_init.cxx to register two method callbacks in place of the +// old wrapper functions. +// // Revision 1.6 1998/08/20 15:12:26 curt // Tweak ... // diff --git a/Time/event.hxx b/Time/event.hxx index 4ee67b18d..35d00ba40 100644 --- a/Time/event.hxx +++ b/Time/event.hxx @@ -39,6 +39,17 @@ extern "C" void *memset(void *, int, size_t); #include // STL double ended queue #include // STL list +#include + +#include "Include/fg_stl_config.h" + +#ifdef _FG_NEED_AUTO_PTR +# include "Include/auto_ptr.hxx" +#else +# include +#endif + +#include "Include/fg_callback.hxx" #ifdef NEEDNAMESPACESTD using namespace std; @@ -47,16 +58,40 @@ using namespace std; #include "fg_time.hxx" -#define FG_EVENT_SUSP 0 -#define FG_EVENT_READY 1 -#define FG_EVENT_QUEUED 2 +struct fgEVENT +{ +public: + enum EventState + { + FG_EVENT_SUSP = 0, + FG_EVENT_READY = 1, + FG_EVENT_QUEUED = 2 + }; + +public: + fgEVENT( const string& desc, + const fgCallback& cb, + EventState _status, + int _interval ); + + fgEVENT( const fgEVENT& evt ); + + ~fgEVENT(); + + void run(); + + void PrintStats() const; +public: + + string description; -typedef struct { - char description[256]; + // The callback object. + // We wrap it in an auto_ptr<> because deque<> calls our copy ctor + // and dtor when inserting and removing. + auto_ptr event_cb; - void (*event)( void ); // pointer to function - int status; // status flag + EventState status; // status flag long interval; // interval in ms between each iteration of this event @@ -68,7 +103,7 @@ typedef struct { long min_time; // time of quickest execution long max_time; // time of slowest execution long count; // number of times executed -} fgEVENT; +}; class fgEVENT_MGR { @@ -88,8 +123,15 @@ public: void Init( void ); // Register an event with the scheduler - void Register(char *desc, void (*event)( void ), int status, - int interval); + void Register( const string& desc, void (*event)( void ), + fgEVENT::EventState status, int interval) { + Register( desc, fgFunctionCallback(event), status, interval ); + } + + void Register( const string& desc, + const fgCallback& cb, + fgEVENT::EventState status, + int interval ); // Update the scheduling parameters for an event void Update( void ); @@ -125,6 +167,32 @@ extern fgEVENT_MGR global_events; // $Log$ +// Revision 1.8 1998/08/29 13:11:32 curt +// Bernie Bright writes: +// I've created some new classes to enable pointers-to-functions and +// pointers-to-class-methods to be treated like objects. These objects +// can be registered with fgEVENT_MGR. +// +// File "Include/fg_callback.hxx" contains the callback class defns. +// +// Modified fgEVENT and fgEVENT_MGR to use the callback classes. Also +// some minor tweaks to STL usage. +// +// Added file "Include/fg_stl_config.h" to deal with STL portability +// issues. I've added an initial config for egcs (and probably gcc-2.8.x). +// I don't have access to Visual C++ so I've left that for someone else. +// This file is influenced by the stl_config.h file delivered with egcs. +// +// Added "Include/auto_ptr.hxx" which contains an implementation of the +// STL auto_ptr class which is not provided in all STL implementations +// and is needed to use the callback classes. +// +// Deleted fgLightUpdate() which was just a wrapper to call +// fgLIGHT::Update(). +// +// Modified fg_init.cxx to register two method callbacks in place of the +// old wrapper functions. +// // Revision 1.7 1998/07/30 23:48:54 curt // Sgi build tweaks. // Pause support. diff --git a/Time/fg_time.cxx b/Time/fg_time.cxx index 422a57015..d75517be1 100644 --- a/Time/fg_time.cxx +++ b/Time/fg_time.cxx @@ -67,7 +67,7 @@ fgTIME cur_time_params; // Force an update of the sky and lighting parameters static void local_update_sky_and_lighting_params( void ) { fgSunInit(); - fgLightUpdate(); + cur_light_params.Update(); fgSkyColorsInit(); } @@ -425,6 +425,32 @@ void fgTimeUpdate(fgFLIGHT *f, fgTIME *t) { // $Log$ +// Revision 1.16 1998/08/29 13:11:32 curt +// Bernie Bright writes: +// I've created some new classes to enable pointers-to-functions and +// pointers-to-class-methods to be treated like objects. These objects +// can be registered with fgEVENT_MGR. +// +// File "Include/fg_callback.hxx" contains the callback class defns. +// +// Modified fgEVENT and fgEVENT_MGR to use the callback classes. Also +// some minor tweaks to STL usage. +// +// Added file "Include/fg_stl_config.h" to deal with STL portability +// issues. I've added an initial config for egcs (and probably gcc-2.8.x). +// I don't have access to Visual C++ so I've left that for someone else. +// This file is influenced by the stl_config.h file delivered with egcs. +// +// Added "Include/auto_ptr.hxx" which contains an implementation of the +// STL auto_ptr class which is not provided in all STL implementations +// and is needed to use the callback classes. +// +// Deleted fgLightUpdate() which was just a wrapper to call +// fgLIGHT::Update(). +// +// Modified fg_init.cxx to register two method callbacks in place of the +// old wrapper functions. +// // Revision 1.15 1998/08/24 20:12:16 curt // Rewrote sidereal_course with simpler parameters. // diff --git a/Time/light.cxx b/Time/light.cxx index 1773cd265..76f4a5c2b 100644 --- a/Time/light.cxx +++ b/Time/light.cxx @@ -211,16 +211,33 @@ fgLIGHT::~fgLIGHT( void ) { } -// wrapper function for updating light parameters via the event scheduler -void fgLightUpdate ( void ) { - fgLIGHT *l; - l = &cur_light_params; - - l->Update(); -} - - // $Log$ +// Revision 1.17 1998/08/29 13:11:33 curt +// Bernie Bright writes: +// I've created some new classes to enable pointers-to-functions and +// pointers-to-class-methods to be treated like objects. These objects +// can be registered with fgEVENT_MGR. +// +// File "Include/fg_callback.hxx" contains the callback class defns. +// +// Modified fgEVENT and fgEVENT_MGR to use the callback classes. Also +// some minor tweaks to STL usage. +// +// Added file "Include/fg_stl_config.h" to deal with STL portability +// issues. I've added an initial config for egcs (and probably gcc-2.8.x). +// I don't have access to Visual C++ so I've left that for someone else. +// This file is influenced by the stl_config.h file delivered with egcs. +// +// Added "Include/auto_ptr.hxx" which contains an implementation of the +// STL auto_ptr class which is not provided in all STL implementations +// and is needed to use the callback classes. +// +// Deleted fgLightUpdate() which was just a wrapper to call +// fgLIGHT::Update(). +// +// Modified fg_init.cxx to register two method callbacks in place of the +// old wrapper functions. +// // Revision 1.16 1998/08/27 17:02:11 curt // Contributions from Bernie Bright // - use strings for fg_root and airport_id and added methods to return diff --git a/Time/light.hxx b/Time/light.hxx index 4b9d9299c..ac3d330a2 100644 --- a/Time/light.hxx +++ b/Time/light.hxx @@ -118,14 +118,36 @@ public: extern fgLIGHT cur_light_params; -// wrapper function for updating light parameters via the event scheduler -void fgLightUpdate ( void ); - - #endif // _LIGHT_HXX // $Log$ +// Revision 1.7 1998/08/29 13:11:33 curt +// Bernie Bright writes: +// I've created some new classes to enable pointers-to-functions and +// pointers-to-class-methods to be treated like objects. These objects +// can be registered with fgEVENT_MGR. +// +// File "Include/fg_callback.hxx" contains the callback class defns. +// +// Modified fgEVENT and fgEVENT_MGR to use the callback classes. Also +// some minor tweaks to STL usage. +// +// Added file "Include/fg_stl_config.h" to deal with STL portability +// issues. I've added an initial config for egcs (and probably gcc-2.8.x). +// I don't have access to Visual C++ so I've left that for someone else. +// This file is influenced by the stl_config.h file delivered with egcs. +// +// Added "Include/auto_ptr.hxx" which contains an implementation of the +// STL auto_ptr class which is not provided in all STL implementations +// and is needed to use the callback classes. +// +// Deleted fgLightUpdate() which was just a wrapper to call +// fgLIGHT::Update(). +// +// Modified fg_init.cxx to register two method callbacks in place of the +// old wrapper functions. +// // Revision 1.6 1998/07/22 21:45:39 curt // fg_time.cxx: Removed call to ctime() in a printf() which should be harmless // but seems to be triggering a bug.