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Comparing rxvt-unicode/src/iom.h (file contents):
Revision 1.5 by pcg, Fri Dec 19 06:17:03 2003 UTC vs.
Revision 1.6 by pcg, Fri Jan 16 22:11:09 2004 UTC

… …
20#ifndef VPE_IOM_H__ 20#ifndef VPE_IOM_H__
21#define VPE_IOM_H__ 21#define VPE_IOM_H__
22 22
23#include <cassert> 23#include <cassert>
24 24
25#include "callback.h"
25#include "rxvtvec.h" 26#include "rxvtvec.h"
26#include "callback.h"
27 27
28#ifndef IOM_IO
28#define IOM_IO 1 29# define IOM_IO 1
30#endif
31#ifndef IOM_TIME
29#define IOM_TIME 1 32# define IOM_TIME 1
33#endif
34#ifndef IOM_CHECK
30#define IOM_CHECK 1 35# define IOM_CHECK 1
36#endif
37#ifndef IOM_IDLE
31#define IOM_IDLE 0 38# define IOM_IDLE 0
39#endif
40
41typedef double tstamp;
42extern tstamp NOW;
32 43
33#if IOM_IO 44#if IOM_IO
34 typedef double tstamp;
35 extern tstamp NOW;
36
37 struct io_watcher; 45 struct io_watcher;
38#endif 46#endif
39#if IOM_TIME 47#if IOM_TIME
40 struct time_watcher; 48 struct time_watcher;
41#endif 49#endif
… …
44#endif 52#endif
45#if IOM_IDLE 53#if IOM_IDLE
46 struct idle_watcher; 54 struct idle_watcher;
47#endif 55#endif
48 56
57template<class watcher>
58struct io_manager_vec : protected simplevec<watcher *> {
59 friend class io_manager;
60protected:
61 void erase_unordered (unsigned int pos)
62 {
63 watcher *w = (*this)[size () - 1];
64 pop_back ();
65
66 if (size ())
67 if ((*this)[pos] = w)
68 w->active = pos + 1;
69 }
70};
71
49class io_manager { 72class io_manager {
50#if IOM_IO 73#if IOM_IO
51 simplevec<io_watcher *> iow; 74 io_manager_vec<io_watcher> iow;
52#endif 75#endif
53#if IOM_CHECK 76#if IOM_CHECK
54 simplevec<check_watcher *> cw; 77 io_manager_vec<check_watcher> cw;
55#endif 78#endif
56#if IOM_TIME 79#if IOM_TIME
57 simplevec<time_watcher *> tw; 80 io_manager_vec<time_watcher> tw;
58#endif 81#endif
59#if IOM_IDLE 82#if IOM_IDLE
60 simplevec<idle_watcher *> iw; 83 io_manager_vec<idle_watcher> iw;
61#endif 84#endif
62 85
63 template<class watcher> 86 template<class watcher>
64 void reg (watcher *w, simplevec<watcher *> &queue); 87 void reg (watcher *w, simplevec<watcher *> &queue);
65 88
… …
87 ~io_manager (); 110 ~io_manager ();
88}; 111};
89 112
90extern io_manager iom; // a singleton, together with it's construction/destruction problems. 113extern io_manager iom; // a singleton, together with it's construction/destruction problems.
91 114
115struct watcher {
116 int active; /* 0 == inactive, else index into respective vector */
117
118 watcher() : active(0) { }
119};
120
92#if IOM_IO 121#if IOM_IO
93enum { EVENT_READ = 1, EVENT_WRITE = 2 }; 122enum { EVENT_READ = 1, EVENT_WRITE = 2 };
94 123
95struct io_watcher : callback2<void, io_watcher &, short> { 124struct io_watcher : watcher, callback2<void, io_watcher &, short> {
96 int fd; 125 int fd;
97 short events; 126 short events;
98
99 template<class O1, class O2>
100 io_watcher (O1 *object, void (O2::*method)(io_watcher &, short))
101 : callback2<void, io_watcher &, short>(object,method)
102 { }
103
104 ~io_watcher ();
105 127
106 void set (int fd_, short events_) { fd = fd_; events = events_; } 128 void set (int fd_, short events_) { fd = fd_; events = events_; }
107 129
108 void set (short events_) { set (fd, events_); } 130 void set (short events_) { set (fd, events_); }
109 void start () { iom.reg (this); } 131 void start () { iom.reg (this); }
110 void start (int fd_, short events_) { set (fd_, events_); iom.reg (this); } 132 void start (int fd_, short events_) { set (fd_, events_); iom.reg (this); }
111 void stop () { iom.unreg (this); } 133 void stop () { iom.unreg (this); }
134
135 template<class O1, class O2>
136 io_watcher (O1 *object, void (O2::*method)(io_watcher &, short))
137 : callback2<void, io_watcher &, short>(object,method)
138 { }
139 ~io_watcher () { stop (); }
112}; 140};
113#endif 141#endif
114 142
115#if IOM_TIME 143#if IOM_TIME
116enum { TSTAMP_CANCEL = -1 };
117
118struct time_watcher : callback1<void, time_watcher &> { 144struct time_watcher : watcher, callback1<void, time_watcher &> {
119 tstamp at; 145 tstamp at;
120
121 template<class O1, class O2>
122 time_watcher (O1 *object, void (O2::*method)(time_watcher &))
123 : callback1<void, time_watcher &>(object,method)
124 { }
125
126 ~time_watcher ();
127 146
128 void trigger (); 147 void trigger ();
129 148
130 void set (tstamp when) { at = when; } 149 void set (tstamp when) { at = when; }
131 void operator ()() { trigger (); } 150 void operator ()() { trigger (); }
132 void start () { iom.reg (this); } 151 void start () { iom.reg (this); }
133 void start (tstamp when) { set (when); iom.reg (this); } 152 void start (tstamp when) { set (when); iom.reg (this); }
134 void stop () { iom.unreg (this); } 153 void stop () { iom.unreg (this); }
135 154
136 void reset (tstamp when = TSTAMP_CANCEL) 155 template<class O1, class O2>
137 { 156 time_watcher (O1 *object, void (O2::*method)(time_watcher &))
138 stop (); 157 : callback1<void, time_watcher &>(object,method)
139 at = when;
140 } 158 { }
159 ~time_watcher () { stop (); }
141}; 160};
142#endif 161#endif
143 162
144#if IOM_CHECK 163#if IOM_CHECK
145// run before checking for new events 164// run before checking for new events
146struct check_watcher : callback1<void, check_watcher &> { 165struct check_watcher : watcher, callback1<void, check_watcher &> {
166 void start () { iom.reg (this); }
167 void stop () { iom.unreg (this); }
168
147 template<class O1, class O2> 169 template<class O1, class O2>
148 check_watcher (O1 *object, void (O2::*method)(check_watcher &)) 170 check_watcher (O1 *object, void (O2::*method)(check_watcher &))
149 : callback1<void, check_watcher &>(object,method) 171 : callback1<void, check_watcher &>(object,method)
150 { } 172 { }
151
152 ~check_watcher (); 173 ~check_watcher () { stop (); }
153
154 void start () { iom.reg (this); }
155 void stop () { iom.unreg (this); }
156}; 174};
157#endif 175#endif
158 176
159#if IOM_IDLE 177#if IOM_IDLE
160// run after checking for any i/o, but before waiting 178// run after checking for any i/o, but before waiting
161struct idle_watcher : callback1<void, idle_watcher &> { 179struct idle_watcher : watcher, callback1<void, idle_watcher &> {
180 void start () { iom.reg (this); }
181 void stop () { iom.unreg (this); }
182
162 template<class O1, class O2> 183 template<class O1, class O2>
163 idle_watcher (O1 *object, void (O2::*method)(idle_watcher &)) 184 idle_watcher (O1 *object, void (O2::*method)(idle_watcher &))
164 : callback1<void, idle_watcher &>(object,method) 185 : callback1<void, idle_watcher &>(object,method)
165 { } 186 { }
166
167 ~idle_watcher (); 187 ~idle_watcher () { stop (); }
168
169 void start () { iom.reg (this); }
170 void stop () { iom.unreg (this); }
171}; 188};
172#endif 189#endif
173 190
174#endif 191#endif
175 192

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