| 1 | /* |
1 | /* |
| 2 | iom.h -- generic I/O multiplexor |
2 | iom.h -- generic I/O multiplexer |
| 3 | Copyright (C) 2003, 2004 Marc Lehmann <pcg@goof.com> |
3 | Copyright (C) 2003, 2004 Marc Lehmann <pcg@goof.com> |
| 4 | |
4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
7 | the Free Software Foundation; either version 2 of the License, or |
| … | |
… | |
| 41 | # define IOM_IDLE 0 |
41 | # define IOM_IDLE 0 |
| 42 | #endif |
42 | #endif |
| 43 | #ifndef IOM_SIG |
43 | #ifndef IOM_SIG |
| 44 | # define IOM_SIG 0 |
44 | # define IOM_SIG 0 |
| 45 | #endif |
45 | #endif |
| 46 | #ifndef IOM_ACCURACY |
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| 47 | # define IOM_ACCURACY 0.001 // start timers at most this much earlier (can be 0) |
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| 48 | #endif |
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| 49 | |
46 | |
| 50 | typedef double tstamp; |
47 | typedef double tstamp; |
| 51 | extern tstamp NOW; |
48 | extern tstamp NOW; |
| 52 | |
49 | |
| 53 | struct watcher; |
50 | struct watcher; |
| … | |
… | |
| 72 | void erase_unordered (unsigned int pos) |
69 | void erase_unordered (unsigned int pos) |
| 73 | { |
70 | { |
| 74 | watcher *w = (*this)[this->size () - 1]; |
71 | watcher *w = (*this)[this->size () - 1]; |
| 75 | this->pop_back (); |
72 | this->pop_back (); |
| 76 | |
73 | |
| 77 | if (this->size ()) |
74 | if (!this->empty ()) |
| 78 | if (((*this)[pos] = w)) // '=' is correct! |
75 | if (((*this)[pos] = w)) // '=' is correct! |
| 79 | w->active = pos + 1; |
76 | w->active = pos + 1; |
| 80 | } |
77 | } |
| 81 | }; |
78 | }; |
| 82 | |
79 | |
| … | |
… | |
| 87 | |
84 | |
| 88 | template<class watcher> |
85 | template<class watcher> |
| 89 | static void unreg (watcher &w, io_manager_vec<watcher> &queue); |
86 | static void unreg (watcher &w, io_manager_vec<watcher> &queue); |
| 90 | |
87 | |
| 91 | public: |
88 | public: |
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89 | #if IOM_TIME |
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90 | // fetch time only |
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91 | static tstamp now (); |
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92 | |
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93 | // set NOW |
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94 | static void set_now (); |
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95 | #endif |
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96 | |
| 92 | // register a watcher |
97 | // register a watcher |
| 93 | #if IOM_IO |
98 | #if IOM_IO |
| 94 | static void reg (io_watcher &w); static void unreg (io_watcher &w); |
99 | static void reg (io_watcher &w); static void unreg (io_watcher &w); |
| 95 | #endif |
100 | #endif |
| 96 | #if IOM_TIME |
101 | #if IOM_TIME |
