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Comparing gvpe/src/iom.h (file contents):
Revision 1.6 by pcg, Fri Mar 28 04:05:10 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<const 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 40
41 void idle_cb (tstamp &ts); time_watcher *idle; 41 void idle_cb (time_watcher &w); time_watcher *idle;
42public: 42public:
43 43
44 void reschedule_time_watchers (); 44 void reschedule_time_watchers ();
45 45
46 // register a watcher 46 // register a watcher
47 void reg (int fd, short events, io_watcher *w); 47 void reg (io_watcher *w);
48 void unreg (const io_watcher *w); 48 void unreg (io_watcher *w);
49 void reg (time_watcher *w); 49 void reg (time_watcher *w);
50 void unreg (const time_watcher *w); 50 void unreg (time_watcher *w);
51 51
52 void loop (); 52 void loop ();
53 53
54 io_manager (); 54 io_manager ();
55 ~io_manager (); 55 ~io_manager ();
56}; 56};
57 57
58extern io_manager iom; 58extern io_manager iom;
59 59
60template<class R, class A> 60struct io_watcher : callback2<void, io_watcher &, short> {
61class callback { 61 int fd;
62 struct object { }; 62 short events;
63 63
64 void *obj;
65 R (object::*meth)(A arg);
66
67 // a proxy is a kind of recipe on how to call a specific class method
68 struct proxy_base {
69 virtual R call (void *obj, R (object::*meth)(A), A arg) = 0;
70 };
71 template<class O1, class O2> 64 template<class O1, class O2>
72 struct proxy : proxy_base {
73 virtual R call (void *obj, R (object::*meth)(A), A arg)
74 {
75 ((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<R (O2::*)(A)>(meth)))
76 (arg);
77 }
78 };
79
80 proxy_base *prxy;
81
82public:
83 template<class O1, class O2>
84 callback (O1 *object, R (O2::*method)(A))
85 {
86 static proxy<O1,O2> p;
87 obj = reinterpret_cast<void *>(object);
88 meth = reinterpret_cast<R (object::*)(A)>(method);
89 prxy = &p;
90 }
91
92 R call(A arg) const
93 {
94 return prxy->call (obj, meth, arg);
95 }
96
97 R operator ()(A arg) const
98 {
99 return call (arg);
100 }
101};
102
103struct io_watcher : callback<void, short> {
104 template<class O1, class O2>
105 io_watcher (O1 *object, void (O2::*method)(short revents)) 65 io_watcher (O1 *object, void (O2::*method)(io_watcher &, short))
106 : callback<void, short>(object,method) 66 : callback2<void, io_watcher &, short>(object,method)
107 { } 67 { }
108 68
109 ~io_watcher () 69 ~io_watcher ()
110 { 70 {
111 iom.unreg (this); 71 iom.unreg (this);
112 } 72 }
113 73
114 void start (int fd, short events) 74 void start (int fd_, short events_)
115 { 75 {
76 fd = fd_;
77 events = events_;
116 iom.reg (fd, events, this); 78 iom.reg (this);
117 } 79 }
118 80
119 void stop () const 81 void stop ()
120 { 82 {
121 iom.unreg (this); 83 iom.unreg (this);
122 } 84 }
123}; 85};
124 86
125#define TSTAMP_CANCEL -1. 87#define TSTAMP_CANCEL -1.
126 88
127struct time_watcher : callback<void, tstamp &> { 89struct time_watcher : callback1<void, time_watcher &> {
128 bool registered; // already registered? 90 bool registered; // already registered?
129 tstamp at; 91 tstamp at;
130 92
131 template<class O1, class O2> 93 template<class O1, class O2>
132 time_watcher (O1 *object, void (O2::*method)(tstamp &)) 94 time_watcher (O1 *object, void (O2::*method)(time_watcher &))
133 : callback<void, tstamp &>(object,method) 95 : callback1<void, time_watcher &>(object,method)
134 , registered(false) 96 , registered(false)
135 { } 97 { }
136 98
137 ~time_watcher () 99 ~time_watcher ()
138 { 100 {
… …
151 void start (tstamp when) 113 void start (tstamp when)
152 { 114 {
153 set (when); 115 set (when);
154 } 116 }
155 117
156 void stop () const 118 void stop ()
157 { 119 {
158 iom.unreg (this); 120 iom.unreg (this);
159 } 121 }
160 122
161 void reset (tstamp when = TSTAMP_CANCEL) 123 void reset (tstamp when = TSTAMP_CANCEL)

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