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33 | struct io_watcher; |
33 | struct io_watcher; |
34 | struct time_watcher; |
34 | struct time_watcher; |
35 | |
35 | |
36 | class io_manager { |
36 | class io_manager { |
37 | vector<pollfd> pfs; |
37 | vector<pollfd> pfs; |
38 | vector<io_watcher *> iow; |
38 | vector<const 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 (tstamp &ts); time_watcher *idle; |
42 | public: |
42 | public: |
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43 | |
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44 | void reschedule_time_watchers (); |
43 | |
45 | |
44 | // register a watcher |
46 | // register a watcher |
45 | void reg (int fd, short events, io_watcher *w); |
47 | void reg (int fd, short events, io_watcher *w); |
46 | void unreg (io_watcher *w); |
48 | void unreg (io_watcher *w); |
47 | void reg (time_watcher *w); |
49 | void reg (time_watcher *w); |
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62 | void *obj; |
64 | void *obj; |
63 | R (object::*meth)(A arg); |
65 | R (object::*meth)(A arg); |
64 | |
66 | |
65 | // a proxy is a kind of recipe on how to call a specific class method |
67 | // a proxy is a kind of recipe on how to call a specific class method |
66 | struct proxy_base { |
68 | struct proxy_base { |
67 | virtual R call (void *obj, void (object::*meth)(A), A arg) = 0; |
69 | virtual R call (void *obj, R (object::*meth)(A), A arg) = 0; |
68 | }; |
70 | }; |
69 | template<class O1, class O2> |
71 | template<class O1, class O2> |
70 | struct proxy : proxy_base { |
72 | struct proxy : proxy_base { |
71 | virtual R call (void *obj, void (object::*meth)(A), A arg) |
73 | virtual R call (void *obj, R (object::*meth)(A), A arg) |
72 | { |
74 | { |
73 | ((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<void (O2::*)(A)>(meth))) |
75 | ((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<R (O2::*)(A)>(meth))) |
74 | (arg); |
76 | (arg); |
75 | } |
77 | } |
76 | }; |
78 | }; |
77 | |
79 | |
78 | proxy_base *prxy; |
80 | proxy_base *prxy; |
79 | |
81 | |
80 | public: |
82 | public: |
81 | template<class O1, class O2> |
83 | template<class O1, class O2> |
82 | callback (O1 *object, void (O2::*method)(A)) |
84 | callback (O1 *object, R (O2::*method)(A)) |
83 | { |
85 | { |
84 | static proxy<O1,O2> p; |
86 | static proxy<O1,O2> p; |
85 | obj = reinterpret_cast<void *>(object); |
87 | obj = reinterpret_cast<void *>(object); |
86 | meth = reinterpret_cast<void (object::*)(A)>(method); |
88 | meth = reinterpret_cast<R (object::*)(A)>(method); |
87 | prxy = &p; |
89 | prxy = &p; |
88 | } |
90 | } |
89 | |
91 | |
90 | R call(A arg) |
92 | R call(A arg) const |
91 | { |
93 | { |
92 | return prxy->call (obj, meth, arg); |
94 | return prxy->call (obj, meth, arg); |
93 | } |
95 | } |
94 | |
96 | |
95 | R operator ()(A arg) |
97 | R operator ()(A arg) const |
96 | { |
98 | { |
97 | return call (arg); |
99 | return call (arg); |
98 | } |
100 | } |
99 | }; |
101 | }; |
100 | |
102 | |
101 | struct io_watcher : callback<void, short> { |
103 | struct io_watcher : callback<void, short> { |
102 | template<class O1, class O2> |
104 | template<class O1, class O2> |
103 | io_watcher (O1 *object, void (O2::*method)(short revents)) |
105 | io_watcher (O1 *object, void (O2::*method)(short revents)) |
104 | : callback<void, short>(object,method) |
106 | : callback<void, short>(object,method) |
105 | { } |
107 | { } |
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108 | |
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109 | ~io_watcher () |
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110 | { |
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111 | iom.unreg (this); |
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112 | } |
106 | |
113 | |
107 | void start (int fd, short events) |
114 | void start (int fd, short events) |
108 | { |
115 | { |
109 | iom.reg (fd, events, this); |
116 | iom.reg (fd, events, this); |
110 | } |
117 | } |
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116 | }; |
123 | }; |
117 | |
124 | |
118 | #define TSTAMP_CANCEL -1. |
125 | #define TSTAMP_CANCEL -1. |
119 | |
126 | |
120 | struct time_watcher : callback<void, tstamp &> { |
127 | struct time_watcher : callback<void, tstamp &> { |
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128 | bool registered; // already registered? |
121 | tstamp at; |
129 | tstamp at; |
122 | |
130 | |
123 | template<class O1, class O2> |
131 | template<class O1, class O2> |
124 | time_watcher (O1 *object, void (O2::*method)(tstamp &)) |
132 | time_watcher (O1 *object, void (O2::*method)(tstamp &)) |
125 | : callback<void, tstamp &>(object,method) |
133 | : callback<void, tstamp &>(object,method) |
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134 | , registered(false) |
126 | { } |
135 | { } |
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136 | |
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137 | ~time_watcher () |
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138 | { |
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139 | iom.unreg (this); |
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140 | } |
127 | |
141 | |
128 | void set (tstamp when); |
142 | void set (tstamp when); |
129 | void trigger (); |
143 | void trigger (); |
130 | |
144 | |
131 | void operator ()() |
145 | void operator ()() |