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1 | // BotInterp.C -*- C++ -*- |
2 | // Copyright (c) 1998 Etienne BERNARD |
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3 | // Copyright (C) 2002,2005,2008 Clinton Ebadi |
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4 | |
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 |
7 | // the Free Software Foundation; either version 2 of the License, or |
8 | // (at your option) any later version. |
9 | |
10 | // This program is distributed in the hope that it will be useful, |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | // GNU General Public License for more details. |
14 | |
15 | // You should have received a copy of the GNU General Public License |
16 | // along with this program; if not, write to the Free Software |
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17 | // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
18 | // 02110-1301, USA. |
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19 | |
20 | #ifdef HAVE_CONFIG_H |
21 | #include "config.h" |
22 | #endif |
23 | |
24 | #include "Utils.H" |
25 | #include "Bot.H" |
26 | #include "BotInterp.H" |
27 | |
28 | #ifdef USESCRIPTS |
29 | |
30 | #include <libguile.h> |
31 | extern "C" |
32 | { |
33 | #include <libguile/regex-posix.h> |
34 | } |
35 | |
36 | BotInterp::BotInterp(Bot *b, String fn) |
37 | : bot(b), counter(0) |
38 | { |
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39 | logPort = scm_open_file (Utils::str2scm (fn), |
40 | Utils::str2scm ("a")); |
41 | |
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42 | scm_gc_protect_object(logPort); |
43 | } |
44 | |
45 | void |
46 | BotInterp::Execute(String command) |
47 | { |
48 | Interp::Execute(bot, command); |
49 | } |
50 | |
51 | void |
52 | BotInterp::LoadScript(String filename) |
53 | { |
54 | Interp::LoadScript(bot, filename); |
55 | } |
56 | |
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57 | SCM |
58 | BotInterp::ScriptLog() |
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59 | { |
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60 | return logPort; |
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61 | } |
62 | |
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63 | namespace |
64 | { |
65 | bool hptr_lt (const Hook* h, const Hook* h1) |
66 | // Hook Pointer less than |
67 | // Used to sort the Hooks list |
68 | { return *h < *h1; } |
69 | } |
70 | |
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71 | bool |
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72 | BotInterp::AddHook(int hooktype, SCM regex, SCM function, int pri, bool fall, |
73 | String name) { |
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74 | if (scm_string_p(regex) == SCM_BOOL_F) |
75 | return false; |
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76 | String rx = Utils::to_upper (Utils::scm2str (regex)); |
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77 | // fixme: really ought to use scm_c_module_lookup with bot module |
78 | SCM r = scm_make_regexp (regex, |
79 | scm_list_n (scm_variable_ref (scm_c_lookup ("regexp/icase")), |
80 | SCM_UNDEFINED)); |
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81 | scm_gc_protect_object(r); |
82 | scm_gc_protect_object(function); |
83 | // First, we check if an hook doesn't exist yet |
84 | std::list<Hook *>::iterator it = hooksMap[hooktype].begin(); |
85 | std::list<Hook *>::iterator it2 = hooksMap[hooktype].end(); |
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86 | |
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87 | for ( ; it != it2; ++it) |
88 | // It exists, we replace it. |
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89 | if ((*it)->regex_str == rx && (*it)->name == name) { |
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90 | scm_gc_unprotect_object((*it)->function); |
91 | scm_gc_unprotect_object (r); |
92 | (*it)->function = function; |
93 | (*it)->priority = pri; |
94 | (*it)->fallthru = fall; |
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95 | hooksMap[hooktype].sort (hptr_lt); |
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96 | return true; |
97 | } |
98 | // It does not exist, we create it |
99 | hooksMap[hooktype].push_back (new Hook(hooktype, rx, r, |
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100 | function, pri, fall, name)); |
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101 | hooksMap[hooktype].sort (hptr_lt); |
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102 | return true; |
103 | } |
104 | |
105 | bool |
106 | BotInterp::RunHooks(int hooktype, String match, SCM args) |
107 | { |
108 | SCM result; |
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109 | // We want to execute higher priority hooks first, so we start at |
110 | // the end of the list instead of the beggining |
111 | std::list<Hook *>::reverse_iterator it = hooksMap[hooktype].rbegin(); |
112 | std::list<Hook *>::reverse_iterator it2 = hooksMap[hooktype].rend(); |
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113 | wrapper_data wd; |
114 | wd.args = args; |
115 | for ( ; it != it2; ++it) { |
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116 | if (scm_regexp_exec((*it)->regex, Utils::str2scm (match), |
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117 | SCM_UNDEFINED, SCM_UNDEFINED) != SCM_BOOL_F) |
118 | { |
119 | wd.func = (*it)->function; |
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120 | result = scm_internal_catch(SCM_BOOL_T, |
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121 | (scm_t_catch_body) |
122 | Interp::LazyApplyWrapper, |
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123 | static_cast<void *> (&wd), |
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124 | (scm_t_catch_handler) Interp::EmptyHandler, 0); |
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125 | if (! (*it)->fallthru) |
126 | break; |
127 | } |
128 | } |
129 | return true; |
130 | } |
131 | |
132 | SCM |
133 | BotInterp::AddTimer(int delay, SCM function) |
134 | { |
135 | int when = time(NULL) + delay; |
136 | int c = ++counter; |
137 | scm_gc_protect_object(function); |
138 | Timer *t = new Timer(c, when, function); |
139 | timersList.push_back(t); |
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140 | return scm_from_int (c); |
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141 | } |
142 | |
143 | bool |
144 | BotInterp::DelTimer(SCM timer) |
145 | { |
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146 | int count = scm_to_int (timer); |
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147 | std::list<Timer *>::iterator it = timersList.begin(); |
148 | std::list<Timer *>::iterator it2 = timersList.end(); |
149 | |
150 | for ( ; it != it2; ++it) { |
151 | if ((*it)->count == count) { |
152 | scm_gc_unprotect_object((*it)->function); |
153 | delete (*it); |
154 | timersList.erase(it); |
155 | return true; |
156 | } |
157 | } |
158 | return false; |
159 | } |
160 | |
161 | bool |
162 | BotInterp::RunTimers(int now) |
163 | { |
164 | std::list<Timer *>::iterator it = timersList.begin(); |
165 | std::list<Timer *>::iterator it2 = timersList.end(); |
166 | std::list<Timer *>::iterator it3; |
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167 | |
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168 | struct wrapper_data wd; |
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169 | wd.args = scm_list_n (SCM_UNDEFINED); |
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170 | |
171 | while (it != it2) { |
172 | if ((*it)->when <= now) { |
173 | wd.func = (*it)->function; |
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174 | scm_internal_catch(SCM_BOOL_T, |
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175 | (scm_t_catch_body) Interp::LazyApplyWrapper, (void *)&wd, |
176 | (scm_t_catch_handler) Interp::EmptyHandler, 0); |
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177 | scm_gc_unprotect_object(wd.func); |
178 | it3 = it; |
179 | ++it3; |
180 | delete (*it); |
181 | timersList.erase(it); |
182 | it = it3; |
183 | } else { |
184 | ++it; |
185 | } |
186 | } |
187 | return true; |
188 | } |
189 | |
190 | #endif |