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1 | /* |
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2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
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3 | * |
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4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
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5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
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6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
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7 | * |
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8 | * Crossfire TRT is free software: you can redistribute it and/or modify |
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9 | * it under the terms of the GNU General Public License as published by |
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10 | * the Free Software Foundation, either version 3 of the License, or |
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11 | * (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 | * |
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21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
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22 | */ |
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23 | |
1 | // |
24 | // |
2 | // cfperl.h perl interface |
25 | // cfperl.h perl interface |
3 | // |
26 | // |
4 | #ifndef CFPERL_H__ |
27 | #ifndef CFPERL_H__ |
5 | #define CFPERL_H__ |
28 | #define CFPERL_H__ |
6 | |
29 | |
7 | struct pl; |
30 | #include <cstdarg> |
8 | struct object; |
31 | #include <cstdio> |
9 | struct mapstruct; |
32 | #include <bitset> |
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33 | |
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34 | using namespace std; |
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35 | |
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36 | #include <EXTERN.h> |
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37 | #include <perl.h> |
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38 | #include <XSUB.h> |
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39 | |
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40 | #include <EventAPI.h> |
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41 | #include <CoroAPI.h> |
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42 | |
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43 | #include "util.h" |
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44 | #include "keyword.h" |
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45 | #include "dynbuf.h" |
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46 | #include "callback.h" |
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47 | |
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48 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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49 | |
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50 | // optimisations/workaround for functions requiring my_perl in scope (anti-bloat) |
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51 | #undef localtime |
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52 | #undef srand48 |
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53 | #undef drand48 |
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54 | #undef srandom |
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55 | #undef readdir |
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56 | #undef getprotobyname |
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57 | #undef gethostbyname |
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58 | #undef ctime |
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59 | #undef strerror |
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60 | |
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61 | // same here, massive symbol spamming |
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62 | #undef do_open |
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63 | #undef do_close |
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64 | #undef ref |
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65 | #undef seed |
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66 | |
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67 | // perl bug #40256: perl does overwrite those with reentrant versions |
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68 | // but does not initialise their state structures. |
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69 | #undef random |
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70 | #undef crypt |
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71 | |
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72 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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73 | |
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74 | // some macros to simplify perl in-calls |
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75 | |
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76 | #define CHECK_ERROR \ |
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77 | if (SvTRUE (ERRSV)) \ |
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78 | LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV)); |
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79 | |
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80 | #define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args) |
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81 | #define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc |
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82 | #define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr))) |
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83 | #define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN; |
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84 | #define CALL_END CHECK_ERROR; FREETMPS; LEAVE |
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85 | |
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86 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
10 | |
87 | |
11 | void cfperl_init (); |
88 | void cfperl_init (); |
12 | void cfperl_main (); |
89 | void cfperl_main (); |
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90 | void cfperl_emergency_save (); |
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91 | void cfperl_cleanup (int make_core); |
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92 | void cfperl_make_book (object *book, int level); |
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93 | void cfperl_send_msg (client *ns, int color, const char *type, const char *msg); |
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94 | int cfperl_can_merge (object *ob1, object *ob2); |
13 | |
95 | |
14 | // could have used templates, but a more traditional C api |
96 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
15 | // uses more explicit typing which is ok for this purpose. |
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16 | enum data_type |
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17 | { |
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18 | DT_END, // no further arguments |
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19 | DT_AV, // perl-only av that needs to be flattened out |
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20 | DT_INT, |
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21 | DT_INT64, |
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22 | DT_DOUBLE, |
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23 | DT_STRING, // 0-terminated string |
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24 | DT_DATA, // string + length |
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25 | DT_OBJECT, |
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26 | DT_MAP, |
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27 | DT_PLAYER, |
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28 | DT_ARCH, |
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29 | DT_PARTY, |
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30 | DT_REGION, |
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31 | |
97 | |
32 | NUM_DATA_TYPES |
98 | extern tstamp runtime; // virtual server time, excluding time jumps and lag |
33 | }; |
99 | extern tstamp NOW; // real time of current server tick |
34 | |
100 | |
35 | enum event_klass |
101 | enum event_klass |
36 | { |
102 | { |
37 | KLASS_NONE, |
103 | KLASS_NONE, |
38 | KLASS_GLOBAL, |
104 | KLASS_GLOBAL, |
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105 | KLASS_ATTACHABLE, |
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106 | KLASS_CLIENT, |
39 | KLASS_PLAYER, |
107 | KLASS_PLAYER, |
40 | KLASS_OBJECT, |
108 | KLASS_OBJECT, |
41 | KLASS_MAP, |
109 | KLASS_MAP, |
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110 | KLASS_COMMAND, |
42 | }; |
111 | }; |
43 | |
112 | |
44 | enum event_type |
113 | enum event_type |
45 | { |
114 | { |
46 | # define def(klass,name) EVENT_ ## klass ## _ ## name, |
115 | # define def(klass,name) EVENT_ ## klass ## _ ## name, |
47 | # include "eventinc.h" |
116 | # include "eventinc.h" |
48 | # undef def |
117 | # undef def |
49 | NUM_EVENT_TYPES |
118 | NUM_EVENT_TYPES |
50 | }; |
119 | }; |
51 | |
120 | |
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121 | // in which global events or per-type events are we interested |
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122 | extern bitset<NUM_EVENT_TYPES> ev_want_event; |
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123 | extern bitset<NUM_TYPES> ev_want_type; |
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124 | |
52 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
125 | #define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
53 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
126 | #define ARG_INT(v) DT_INT , static_cast<int> (v) |
54 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
127 | #define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
55 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
128 | #define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
56 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
129 | #define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
57 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) |
130 | #define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l) |
58 | #define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) |
131 | #define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o)) |
59 | #define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) |
132 | #define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o)) |
60 | #define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) |
133 | #define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o)) |
61 | #define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) |
134 | #define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o)) |
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135 | #define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o)) |
62 | #define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) |
136 | #define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o)) |
63 | #define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) |
137 | #define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o)) |
64 | |
138 | |
65 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
139 | // the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
66 | |
140 | #define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0) |
67 | // all these return true when the normal event processing should be skipped (if any) |
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68 | #define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) |
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69 | |
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70 | #define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) |
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71 | #define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) |
141 | #define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) |
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142 | #define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__) |
72 | #define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) |
143 | #define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__) |
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144 | #define INVOKE_CLIENT(event, obj, ...) INVOKE (obj , EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__) |
73 | #define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) |
145 | #define INVOKE_PLAYER(event, obj, ...) INVOKE (obj , EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__) |
74 | #define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) |
146 | #define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__) |
75 | |
147 | |
76 | //TODO should index into @result |
148 | //TODO should index into @result |
77 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
149 | #define RESULT(idx,type) cfperl_result_ ## type (idx) |
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150 | #define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE) |
78 | #define RESULT_INT(idx) RESULT(idx, INT) |
151 | #define RESULT_INT(idx) RESULT(idx, INT) |
79 | |
152 | |
80 | bool cfperl_invoke (event_type event, ...); |
153 | double cfperl_result_DOUBLE (int idx); |
81 | int cfperl_result_INT (int idx); |
154 | int cfperl_result_INT (int idx); |
82 | |
155 | |
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156 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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157 | |
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158 | INTERFACE_CLASS (attachable) |
83 | struct attachable_base |
159 | struct attachable |
84 | { |
160 | { |
85 | void *self, *cb; // CF+ perl self and callback |
161 | static MGVTBL vtbl; |
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162 | |
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163 | static unordered_vector<attachable *> mortals; |
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164 | MTH static void check_mortals (); |
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165 | |
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166 | enum { |
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167 | F_DESTROYED = 0x01, |
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168 | F_DEBUG_TRACE = 0x02, |
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169 | }; |
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170 | |
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171 | // object is delete'd after the refcount reaches 0 |
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172 | int ACC (RW, flags); |
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173 | mutable int ACC (RW, refcnt); |
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174 | |
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175 | MTH void refcnt_inc () const { ++refcnt; } |
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176 | MTH void refcnt_dec () const { --refcnt; } |
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177 | |
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178 | MTH int refcnt_cnt () const; |
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179 | // check wether the object has died and destroy |
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180 | MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); } |
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181 | |
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182 | // destroy the object unless it was already destroyed |
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183 | // this politely asks everybody interested the reduce |
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184 | // the refcount to 0 as soon as possible. |
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185 | MTH void destroy (); |
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186 | |
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187 | // return wether an object was destroyed already |
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188 | MTH bool destroyed () const { return flags & F_DESTROYED; } |
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189 | |
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190 | virtual void gather_callbacks (AV *&callbacks, event_type event) const; |
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191 | |
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192 | #if 0 |
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193 | private: |
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194 | static refcounted *rc_first; |
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195 | refcounted *rc_next; |
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196 | #endif |
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197 | |
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198 | HV *self; // CF+ perl self |
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199 | AV *cb; // CF+ callbacks |
86 | const char *attach; // generic extension attachment information |
200 | shstr attach; // generic extension attachment information |
87 | |
201 | |
88 | void clear (); // called when free'ing objects |
202 | void sever_self (); // sever this object from its self, if it has one. |
89 | void optimise (); // possibly save some memory by destroying unneeded data |
203 | void optimise (); // possibly save some memory by destroying unneeded data |
90 | void instantiate (data_type type, void *obj); |
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91 | |
204 | |
92 | void attachable_init () |
205 | attachable () |
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206 | : flags (0), refcnt (0), self (0), cb (0), attach (0) |
93 | { |
207 | { |
94 | self = cb = 0; |
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95 | attach = 0; |
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96 | } |
208 | } |
97 | }; |
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98 | |
209 | |
99 | // objects attachable from perl (or any other extension) should include or |
210 | attachable (const attachable &src) |
100 | // derive using the curiously recurring template pattern, to avoid |
211 | : flags (0), refcnt (0), self (0), cb (0), attach (src.attach) |
101 | // virtual method calls etc. |
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102 | template<class subclass> |
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103 | struct attachable : attachable_base |
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104 | { |
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105 | static data_type get_dt () |
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106 | { |
212 | { |
107 | return subclass::get_dt (); |
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108 | } |
213 | } |
109 | |
214 | |
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215 | // set a custom key to the given value, or delete it if value = 0 |
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216 | void set_key (const char *key, const char *value = 0); |
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217 | |
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218 | attachable &operator =(const attachable &src); |
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219 | |
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220 | // used to _quickly_ device wether to shortcut the evaluation |
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221 | bool should_invoke (event_type event) |
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222 | { |
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223 | return ev_want_event [event] || cb; |
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224 | } |
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225 | |
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226 | bool invoke (event_type event, ...); |
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227 | |
110 | void instantiate () |
228 | MTH void instantiate (); |
111 | { |
229 | void reattach (); |
112 | if (attach) |
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113 | attachable_base::instantiate (get_dt (), static_cast<subclass *>(this)); |
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114 | } |
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115 | }; |
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116 | |
230 | |
117 | struct object_freezethaw |
231 | protected: |
118 | { |
232 | // do the real refcount checking work |
119 | void *av; |
233 | void do_check (); |
120 | FILE *fp; |
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121 | |
234 | |
122 | operator FILE *() { return fp; } |
235 | // the method that does the real destroy work |
123 | }; |
236 | virtual void do_destroy (); |
124 | |
237 | |
125 | struct object_freezer : object_freezethaw |
238 | // destructor is protected, should not be called by anybody |
126 | { |
239 | virtual ~attachable (); |
127 | void *filename; |
240 | }; |
128 | |
241 | |
129 | object_freezer (const char *filename); |
242 | // the global object is a pseudo object that cares for the global events |
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243 | struct global : attachable |
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244 | { |
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245 | void gather_callbacks (AV *&callbacks, event_type event) const; |
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246 | }; |
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247 | |
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248 | extern struct global gbl_ev; |
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249 | |
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250 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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251 | |
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252 | struct object_freezer : dynbuf_text |
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253 | { |
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254 | AV *av; |
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255 | |
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256 | object_freezer (); |
130 | ~object_freezer (); |
257 | ~object_freezer (); |
131 | |
258 | |
132 | void put (attachable_base *ext); |
259 | void put (attachable *ext); |
133 | |
260 | |
134 | template<class subclass> |
261 | // used only for user-defined key-value pairs |
135 | void put (attachable<subclass> *obj) |
262 | void put (const shstr &k, const shstr &v) |
136 | { |
263 | { |
137 | put ((attachable_base *)obj); |
264 | add (k); |
138 | } |
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139 | }; |
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140 | |
265 | |
141 | struct object_thawer : object_freezethaw |
266 | if (expect_true (v)) |
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267 | add (' '), add (v); |
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268 | |
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269 | add ('\n'); |
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270 | } |
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271 | |
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272 | template<typename T> |
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273 | void put_kw_string (keyword k, const T &v) |
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274 | { |
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275 | int klen = keyword_len [k]; |
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276 | int vlen = v ? strlen (v) + 1 : 0; |
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277 | |
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278 | char *p = (char *)alloc (klen + vlen + 1); |
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279 | |
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280 | memcpy (p, keyword_str [k], klen); p += klen; |
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281 | |
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282 | if (expect_true (v)) |
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283 | { |
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284 | *p++ = ' '; vlen--; |
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285 | memcpy (p, v, vlen); p += vlen; |
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286 | } |
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287 | |
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288 | *p = '\n'; |
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289 | } |
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290 | |
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291 | void put (keyword k, const char *v = 0) |
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292 | { |
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293 | put_kw_string (k, v); |
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294 | } |
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295 | |
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296 | void put (keyword k, const shstr &v) |
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297 | { |
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298 | put_kw_string (k, v); |
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299 | } |
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300 | |
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301 | void put (keyword k, double v) |
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302 | { |
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303 | force (MAX_KEYWORD_LEN + 2 + 32); |
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304 | fadd (keyword_str [k], keyword_len [k]); |
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305 | fadd (' '); |
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306 | falloc (sprintf (ptr, "%.7g", v)); |
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307 | fadd ('\n'); |
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308 | } |
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309 | |
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310 | void put_(keyword k, sint64 v) |
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311 | { |
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312 | force (MAX_KEYWORD_LEN + 2 + sint64_digits); |
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313 | fadd (keyword_str [k], keyword_len [k]); |
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314 | fadd (' '); |
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315 | add (v); |
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316 | fadd ('\n'); |
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317 | } |
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318 | |
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319 | void put_(keyword k, sint32 v) |
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320 | { |
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321 | force (MAX_KEYWORD_LEN + 2 + sint32_digits); |
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322 | fadd (keyword_str [k], keyword_len [k]); |
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323 | fadd (' '); |
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324 | add (v); |
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325 | fadd ('\n'); |
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326 | } |
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327 | |
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328 | void put (keyword k, float v) { put (k, (double)v); } |
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329 | void put (keyword k, signed char v) { put_(k, (sint32)v); } |
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330 | void put (keyword k, unsigned char v) { put_(k, (sint32)v); } |
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331 | void put (keyword k, signed short v) { put_(k, (sint32)v); } |
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332 | void put (keyword k, unsigned short v) { put_(k, (sint32)v); } |
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333 | void put (keyword k, signed int v) { put_(k, (sint32)v); } |
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334 | void put (keyword k, unsigned int v) { put_(k, (sint64)v); } |
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335 | void put (keyword k, signed long v) { put_(k, (sint64)v); } |
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336 | void put (keyword k, unsigned long v) { put_(k, (sint64)v); } |
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337 | void put (keyword k, signed long long v) { put_(k, (sint64)v); } |
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338 | void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } |
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339 | |
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340 | void put (keyword kbeg, keyword kend, const shstr &v) |
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341 | { |
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342 | force (MAX_KEYWORD_LEN + 1); |
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343 | fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n'); |
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344 | |
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345 | if (expect_true (v)) |
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346 | { |
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347 | add (v); |
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348 | add ('\n'); |
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349 | } |
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350 | |
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351 | force (MAX_KEYWORD_LEN + 1); |
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352 | fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n'); |
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353 | } |
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354 | |
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355 | void put (keyword k, archetype *v); |
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356 | void put (keyword k, treasurelist *v); |
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357 | void put (keyword k, faceinfo *v); |
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358 | |
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359 | template<typename T> |
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360 | void put (keyword k, const refptr<T> &v) |
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361 | { |
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362 | put (k, (T *)v); |
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363 | } |
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364 | |
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365 | bool save (const char *path); |
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366 | char *as_string (); // like strdup |
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367 | |
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368 | operator bool () { return !!av; } |
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369 | }; |
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370 | |
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371 | struct object_thawer |
142 | { |
372 | { |
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373 | char *line; // current beginning of line |
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374 | SV *text; // text part |
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375 | AV *av; // perl part |
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376 | int linenum; |
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377 | keyword kw; |
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378 | char *kw_str; // the keyword parsed, as string |
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379 | char *value; // the value, or 0 if no value |
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380 | char *value_nn; // the value, or the empty string if no value |
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381 | const char *name; |
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382 | |
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383 | operator bool () { return !!text; } |
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384 | |
143 | object_thawer (FILE *fp, const char *filename = 0); |
385 | object_thawer (const char *path = 0); |
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386 | object_thawer (const char *data, AV *perlav); |
144 | ~object_thawer (); |
387 | ~object_thawer (); |
145 | |
388 | |
146 | void get (data_type type, void *obj, attachable_base *ext, int oid); |
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147 | |
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148 | template<class subclass> |
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149 | void get (attachable<subclass> *obj, int oid) |
389 | void get (attachable *obj, int oid); |
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390 | |
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391 | // parse next line |
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392 | void next (); |
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393 | // skip the current key-value (usually fetch next line, for |
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394 | // multiline-fields, skips till the corresponding end-kw |
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395 | void skip (); |
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396 | |
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397 | char *get_str () { return value; } // may be 0 |
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398 | void get_ml (keyword kend, shstr &sh); |
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399 | |
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400 | void get_ornull (shstr &sh) const { sh = value; } |
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401 | void get (shstr &sh) const { sh = value; } // might want to check for non-null here |
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402 | |
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403 | bool get_bool () const { return *value_nn == '1'; } |
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404 | sint32 get_sint32 () const; |
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405 | sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); } |
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406 | double get_double () const { return strtod (value_nn, 0); } |
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407 | |
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408 | void get (float &v) { v = get_double (); } |
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409 | void get (double &v) { v = get_double (); } |
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410 | |
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411 | void get (bool &i) { i = get_bool (); } |
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412 | void get (sint8 &i) { i = get_sint32 (); } |
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413 | void get (uint8 &i) { i = get_sint32 (); } |
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414 | void get (sint16 &i) { i = get_sint32 (); } |
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415 | void get (uint16 &i) { i = get_sint32 (); } |
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416 | void get (sint32 &i) { i = get_sint32 (); } |
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417 | |
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418 | void get (uint32 &i) { i = get_sint64 (); } |
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419 | void get (sint64 &i) { i = get_sint64 (); } |
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420 | |
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421 | bool parse_error (const char *type = 0, const char *name = 0, bool skip = true); |
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422 | }; |
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423 | |
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424 | //TODO: remove |
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425 | char *fgets (char *s, int n, object_thawer &thawer); |
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426 | |
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427 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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428 | |
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429 | struct coroapi { |
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430 | static struct CoroAPI *GCoroAPI; |
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431 | |
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432 | static int nready () { return CORO_NREADY; } |
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433 | static int cede () { return CORO_CEDE ; } |
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434 | |
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435 | static tstamp next_cede; |
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436 | static int cede_counter; |
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437 | |
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438 | static void do_cede_every (); |
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439 | static void do_cede_to_tick (); |
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440 | static void do_cede_to_tick_every (); |
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441 | |
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442 | static void cede_every (int count) |
150 | { |
443 | { |
151 | if (av) |
444 | if (expect_false (++cede_counter >= count)) |
152 | get (subclass::get_dt (), (subclass *)obj, obj, oid); |
445 | do_cede_every (); |
153 | } |
446 | } |
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447 | |
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448 | static bool cede_to_tick () |
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449 | { |
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450 | if (expect_true (now () < next_cede)) |
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451 | return false; |
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452 | |
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453 | do_cede_to_tick (); |
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454 | return true; |
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455 | } |
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456 | |
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457 | static bool cede_to_tick_every (int count) |
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458 | { |
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459 | if (expect_true (++cede_counter < count)) |
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460 | return false; |
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461 | |
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462 | return cede_to_tick (); |
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463 | } |
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464 | |
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465 | static void wait_for_tick (); |
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466 | static void wait_for_tick_begin (); |
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467 | }; |
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468 | |
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469 | struct watcher_base |
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470 | { |
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471 | static struct EventAPI *GEventAPI; |
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472 | }; |
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473 | |
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474 | template<class base> |
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475 | struct watcher : watcher_base |
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476 | { |
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477 | base *pe; |
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478 | |
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479 | void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); } |
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480 | void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); } |
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481 | void now () { GEventAPI->now ((pe_watcher *)pe); } |
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482 | void suspend () { GEventAPI->suspend ((pe_watcher *)pe); } |
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483 | void resume () { GEventAPI->resume ((pe_watcher *)pe); } |
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484 | |
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485 | void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; } |
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486 | |
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487 | ~watcher () |
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488 | { |
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489 | cancel (); |
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490 | } |
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491 | |
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492 | private: |
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493 | void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private |
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494 | }; |
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495 | |
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496 | struct iw : watcher<pe_idle>, callback<void (iw &)> |
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497 | { |
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498 | template<class O, class M> |
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499 | iw (O object, M method) |
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500 | : callback<void (iw &)> (object, method) |
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501 | { |
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|
502 | alloc (); |
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|
503 | } |
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504 | |
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505 | private: |
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|
506 | void alloc (); |
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|
507 | }; |
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|
508 | |
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|
509 | struct iow : watcher<pe_io>, callback<void (iow &, int)> |
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|
510 | { |
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|
511 | template<class O, class M> |
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512 | iow (O object, M method) |
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513 | : callback<void (iow &, int)> (object, method) |
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|
514 | { |
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|
515 | alloc (); |
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|
516 | } |
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|
517 | |
|
|
518 | void fd (int fd); |
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|
519 | int poll (); |
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|
520 | void poll (int events); |
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|
521 | |
|
|
522 | private: |
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|
523 | void alloc (); |
154 | }; |
524 | }; |
155 | |
525 | |
156 | #endif |
526 | #endif |
157 | |
527 | |