| 1 | /********************************************************************** <BR>
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| 2 | This file is part of Crack dot Com's free source code release of
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| 3 | Golgotha. <a href="http://www.crack.com/golgotha_release"> <BR> for
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| 4 | information about compiling & licensing issues visit this URL</a>
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| 5 | <PRE> If that doesn't help, contact Jonathan Clark at
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| 6 | golgotha_source@usa.net (Subject should have "GOLG" in it)
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| 7 | ***********************************************************************/
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| 8 |
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| 9 | #include "arch.hh"
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| 10 | #include "time/time.hh"
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| 11 | #include "time/timedev.hh"
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| 12 | #include "device/kernel.hh"
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| 13 | #include "init/init.hh"
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| 14 | #include "isllist.hh"
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| 15 | #include "time/time.hh"
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| 16 | #include "device/event.hh"
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| 17 |
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| 18 | i4_time_device_class i4_time_dev;
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| 19 | extern int i4_show_events;
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| 20 |
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| 21 | static i4_isl_list<i4_time_device_class::timed_event> events;
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| 22 |
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| 23 | i4_time_device_class::timed_event::~timed_event()
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| 24 | {
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| 25 | delete event;
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| 26 | }
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| 27 |
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| 28 | i4_time_device_class::timed_event::timed_event(i4_event_handler_class *send_to,
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| 29 | i4_event *event,
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| 30 | w32 milli_wait)
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| 31 | : send_to(send_to),
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| 32 | event(event->copy()),
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| 33 | milli_wait(milli_wait)
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| 34 | {
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| 35 | }
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| 36 |
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| 37 | class i4_time_device_adder_class : public i4_init_class
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| 38 | {
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| 39 | public :
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| 40 | void init()
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| 41 | {
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| 42 | i4_kernel.add_device(&i4_time_dev);
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| 43 | }
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| 44 | } i4_time_device_adder_instance;
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| 45 |
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| 46 |
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| 47 |
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| 48 | i4_bool i4_time_device_class::cancel_event(const id &handle)
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| 49 | {
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| 50 | i4_isl_list<timed_event>::iterator i=events.begin(),last=events.end();
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| 51 | for (;i!=events.end();++i)
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| 52 | {
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| 53 | if (handle.reference==&*i)
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| 54 | {
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| 55 | if (last==events.end())
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| 56 | events.erase();
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| 57 | else
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| 58 | events.erase_after(last);
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| 59 | delete &*i;
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| 60 | return i4_T;
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| 61 | }
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| 62 | last=i;
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| 63 | }
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| 64 | return i4_F;
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| 65 | }
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| 66 |
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| 67 | i4_bool i4_time_device_class::process_events() // returns true if an event was dispatched
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| 68 | {
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| 69 | if (events.begin()==events.end())
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| 70 | return i4_F;
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| 71 |
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| 72 | i4_time_class current;
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| 73 | i4_bool ret=i4_F;
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| 74 |
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| 75 | i4_isl_list<timed_event>::iterator i=events.begin(),del=events.end(), last=events.end();
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| 76 |
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| 77 | for (;i!=events.end();)
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| 78 | {
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| 79 | if (current.milli_diff(i->start_time)>i->milli_wait)
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| 80 | {
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| 81 | if (last==events.end())
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| 82 | events.erase();
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| 83 | else
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| 84 | events.erase_after(last);
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| 85 |
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| 86 | #ifndef I4_RETAIL
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| 87 | if (i4_show_events)
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| 88 | i4_warning("sending : '%s' to '%s'",i->event->name(), i->send_to->name());
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| 89 | #endif
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| 90 | del=i;
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| 91 | ++i;
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| 92 |
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| 93 | del->send_to->receive_event(del->event);
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| 94 | delete &*del;
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| 95 |
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| 96 | ret=i4_T;
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| 97 | }
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| 98 | else
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| 99 | {
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| 100 | last=i;
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| 101 | ++i;
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| 102 | }
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| 103 |
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| 104 | }
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| 105 | last=events.end();
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| 106 | return ret;
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| 107 | }
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| 108 |
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| 109 | i4_time_device_class::id
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| 110 | i4_time_device_class::request_event(i4_event_handler_class *send_to, // who to send the event to
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| 111 | i4_event *event, // what event to send
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| 112 | w32 milli_wait) // how much time to wait (in milli-seconds)
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| 113 | {
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| 114 | // first make sure this is not an event that needs to be sent right now
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| 115 | // these events usually are two-way events that have return codes inside
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| 116 | if (event->when()==i4_event::NOW)
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| 117 | i4_error("Cannot send NOW events throught the time device!");
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| 118 |
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| 119 | timed_event *ev=new timed_event(send_to,event,milli_wait);
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| 120 | events.insert_end(*ev);
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| 121 | return id(ev);
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| 122 | }
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