| 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 <gvpe@schmorp.de> |
| 4 | |
4 | |
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5 | This file is part of GVPE. |
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6 | |
| 5 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
8 | 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 |
9 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
10 | (at your option) any later version. |
| 9 | |
11 | |
| 10 | This program is distributed in the hope that it will be useful, |
12 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
15 | GNU General Public License for more details. |
| 14 | |
16 | |
| 15 | You should have received a copy of the GNU General Public License |
17 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
| 17 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
20 | */ |
| 19 | |
21 | |
| 20 | #ifndef IOM_H__ |
22 | #ifndef IOM_H__ |
| 21 | #define IOM_H__ |
23 | #define IOM_H__ |
| … | |
… | |
| 64 | struct sig_watcher; |
66 | struct sig_watcher; |
| 65 | #endif |
67 | #endif |
| 66 | |
68 | |
| 67 | template<class watcher> |
69 | template<class watcher> |
| 68 | struct io_manager_vec : vector<watcher *> { |
70 | struct io_manager_vec : vector<watcher *> { |
| 69 | #if IOM_CHECK |
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| 70 | bool activity; |
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| 71 | #endif |
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| 72 | |
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| 73 | void erase_unordered (unsigned int pos) |
71 | void erase_unordered (unsigned int pos) |
| 74 | { |
72 | { |
| 75 | watcher *w = (*this)[this->size () - 1]; |
73 | watcher *w = (*this)[this->size () - 1]; |
| 76 | this->pop_back (); |
74 | this->pop_back (); |
| 77 | |
75 | |
| 78 | if (this->size ()) |
76 | if (!this->empty ()) |
| 79 | if ((*this)[pos] = w) |
77 | if (((*this)[pos] = w)) // '=' is correct! |
| 80 | w->active = pos + 1; |
78 | w->active = pos + 1; |
| 81 | } |
79 | } |
| 82 | }; |
80 | }; |
| 83 | |
81 | |
| 84 | // only used as a namespace, and for initialisation purposes |
82 | // only used as a namespace, and for initialisation purposes |
| … | |
… | |
| 88 | |
86 | |
| 89 | template<class watcher> |
87 | template<class watcher> |
| 90 | static void unreg (watcher &w, io_manager_vec<watcher> &queue); |
88 | static void unreg (watcher &w, io_manager_vec<watcher> &queue); |
| 91 | |
89 | |
| 92 | public: |
90 | public: |
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91 | #if IOM_TIME |
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92 | // fetch time only |
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93 | static tstamp now (); |
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94 | |
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95 | // set NOW |
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96 | static void set_now (); |
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97 | #endif |
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98 | |
| 93 | // register a watcher |
99 | // register a watcher |
| 94 | #if IOM_IO |
100 | #if IOM_IO |
| 95 | static void reg (io_watcher &w); static void unreg (io_watcher &w); |
101 | static void reg (io_watcher &w); static void unreg (io_watcher &w); |
| 96 | #endif |
102 | #endif |
| 97 | #if IOM_TIME |
103 | #if IOM_TIME |
