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Comparing gvpe/src/iom.h (file contents):
Revision 1.2 by pcg, Fri Mar 21 21:17:02 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 tstamp; 29typedef double tstamp;
29 30
30extern tstamp 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; 64 template<class O1, class O2>
61 R (object::*meth)(A arg); 65 io_watcher (O1 *object, void (O2::*method)(io_watcher &, short))
66 : callback2<void, io_watcher &, short>(object,method)
67 { }
62 68
63 // a proxy is a kind of recipe on how to call a specific class method 69 ~io_watcher ()
64 struct proxy_base {
65 virtual R call (void *obj, void (object::*meth)(A), A arg) = 0;
66 };
67 template<class O1, class O2>
68 struct proxy : proxy_base {
69 virtual R call (void *obj, void (object::*meth)(A), A arg)
70 {
71 ((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<void (O2::*)(A)>(meth)))
72 (arg);
73 }
74 };
75
76 proxy_base *prxy;
77
78public:
79 template<class O1, class O2>
80 callback (O1 *object, void (O2::*method)(A))
81 { 70 {
82 static proxy<O1,O2> p; 71 iom.unreg (this);
83 obj = reinterpret_cast<void *>(object);
84 meth = reinterpret_cast<void (object::*)(A)>(method);
85 prxy = &p;
86 } 72 }
87 73
88 R call(A arg) 74 void start (int fd_, short events_)
89 { 75 {
90 return prxy->call (obj, meth, arg); 76 fd = fd_;
77 events = events_;
78 iom.reg (this);
91 } 79 }
92 80
93 void stop () 81 void stop ()
94 { 82 {
95 iom.unreg (this); 83 iom.unreg (this);
96 } 84 }
97}; 85};
98 86
99struct io_watcher : callback<void, short> { 87#define TSTAMP_CANCEL -1.
100 template<class O1, class O2>
101 io_watcher (O1 *object, void (O2::*method)(short revents))
102 : callback<void, short>(object,method)
103 { }
104 88
105 void start (int fd, short events)
106 {
107 iom.reg (fd, events, this);
108 }
109
110};
111
112struct time_watcher : callback<void, tstamp &> { 89struct time_watcher : callback1<void, time_watcher &> {
90 bool registered; // already registered?
113 tstamp at; 91 tstamp at;
114 92
115 template<class O1, class O2> 93 template<class O1, class O2>
116 time_watcher (O1 *object, void (O2::*method)(tstamp &)) 94 time_watcher (O1 *object, void (O2::*method)(time_watcher &))
117 : callback<void, tstamp &>(object,method) 95 : callback1<void, time_watcher &>(object,method)
96 , registered(false)
118 { } 97 { }
119 98
120 void set (tstamp when); 99 ~time_watcher ()
121
122 void trigger ()
123 { 100 {
124 call (at); 101 iom.unreg (this);
125 } 102 }
126 103
104 void set (tstamp when);
105 void trigger ();
106
107 void operator ()()
108 {
109 trigger ();
110 }
111
112 void start ();
127 void start (tstamp when) 113 void start (tstamp when)
128 { 114 {
129 set (when); 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;
130 } 127 }
131}; 128};
132 129
133#endif 130#endif
134 131

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