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Comparing gvpe/src/iom.h (file contents):
Revision 1.1 by pcg, Fri Mar 21 20:33:36 2003 UTC vs.
Revision 1.10 by pcg, Wed Apr 2 21:02:25 2003 UTC

… …
21 21
22#include <vector> 22#include <vector>
23 23
24#include <sys/poll.h> 24#include <sys/poll.h>
25 25
26#include "callback.h"
26#include "slog.h" 27#include "slog.h"
27 28
28typedef double timestamp; 29typedef double tstamp;
29 30
30extern timestamp NOW; 31extern tstamp NOW;
31 32
32template<class R, class A> class callback;
33struct io_watcher; 33struct io_watcher;
34struct time_watcher; 34struct time_watcher;
35 35
36class io_manager { 36class io_manager {
37 vector<pollfd> pfs; 37 vector<pollfd> pfs;
38 vector<io_watcher *> iow; 38 vector<io_watcher *> iow;
39 vector<time_watcher *> tw; // actually a heap 39 vector<time_watcher *> tw; // actually a heap
40
41 void idle_cb (time_watcher &w); time_watcher *idle;
40public: 42public:
41 43
44 void reschedule_time_watchers ();
45
42 // register a watcher 46 // register a watcher
43 void reg (int fd, short events, io_watcher *w); 47 void reg (io_watcher *w);
44 void unreg (io_watcher *w); 48 void unreg (io_watcher *w);
45 void reg (time_watcher *w); 49 void reg (time_watcher *w);
46 void unreg (time_watcher *w); 50 void unreg (time_watcher *w);
47 51
48 void loop (); 52 void loop ();
… …
51 ~io_manager (); 55 ~io_manager ();
52}; 56};
53 57
54extern io_manager iom; 58extern io_manager iom;
55 59
56template<class R, class A> 60struct io_watcher : callback2<void, io_watcher &, short> {
57class callback { 61 int fd;
58 struct object { }; 62 short events;
59 63
60 void *obj;
61 R (object::*meth)(A arg);
62
63 // a proxy is a kind of recipe on how to call a specific class method
64 struct proxy_base {
65 virtual R call (void *obj, void (object::*meth)(A), A arg) = 0;
66 };
67 template<class O1, class O2> 64 template<class O1, class O2>
68 struct proxy : proxy_base { 65 io_watcher (O1 *object, void (O2::*method)(io_watcher &, short))
69 virtual R call (void *obj, void (object::*meth)(A), A arg) 66 : callback2<void, io_watcher &, short>(object,method)
70 {
71 ((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<void (O2::*)(A)>(meth)))
72 (arg);
73 } 67 { }
74 };
75
76 proxy_base *prxy;
77
78public:
79 template<class O1, class O2>
80 callback (O1 *object, void (O2::*method)(A))
81 {
82 static proxy<O1,O2> p;
83 obj = reinterpret_cast<void *>(object);
84 meth = reinterpret_cast<void (object::*)(A)>(method);
85 prxy = &p;
86 }
87
88 R call(A arg)
89 {
90 return prxy->call (obj, meth, arg);
91 }
92};
93
94struct io_watcher : callback<void, short> {
95 template<class O1, class O2>
96 io_watcher (int fd, short events, O1 *object, void (O2::*method)(short revents))
97 : callback<void, short>(object,method)
98 {
99 iom.reg (fd, events, this);
100 }
101 68
102 ~io_watcher () 69 ~io_watcher ()
103 { 70 {
104 iom.unreg (this); 71 iom.unreg (this);
105 } 72 }
73
74 void start (int fd_, short events_)
75 {
76 fd = fd_;
77 events = events_;
78 iom.reg (this);
79 }
80
81 void stop ()
82 {
83 iom.unreg (this);
84 }
106}; 85};
107 86
108struct time_watcher : callback<void, timestamp &> { 87#define TSTAMP_CANCEL -1.
109 timestamp at;
110 88
111 void set (timestamp when); 89struct time_watcher : callback1<void, time_watcher &> {
90 bool registered; // already registered?
91 tstamp at;
112 92
113 template<class O1, class O2> 93 template<class O1, class O2>
114 time_watcher (timestamp when, O1 *object, void (O2::*method)(timestamp &)) 94 time_watcher (O1 *object, void (O2::*method)(time_watcher &))
115 : callback<void, timestamp &>(object,method) 95 : callback1<void, time_watcher &>(object,method)
116 , at(when) 96 , registered(false)
117 { 97 { }
118 iom.reg (this);
119 }
120 98
121 ~time_watcher () 99 ~time_watcher ()
122 { 100 {
123 iom.unreg (this); 101 iom.unreg (this);
124 } 102 }
103
104 void set (tstamp when);
105 void trigger ();
106
107 void operator ()()
108 {
109 trigger ();
110 }
111
112 void start ();
113 void start (tstamp when)
114 {
115 set (when);
116 }
117
118 void stop ()
119 {
120 iom.unreg (this);
121 }
122
123 void reset (tstamp when = TSTAMP_CANCEL)
124 {
125 stop ();
126 at = when;
127 }
125}; 128};
126 129
127#endif 130#endif
128 131

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