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/* |
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* This file is part of Deliantra, the Roguelike Realtime MMORPG. |
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* |
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* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
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* |
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* Deliantra is free software: you can redistribute it and/or modify it under |
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* the terms of the Affero GNU General Public License as published by the |
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* Free Software Foundation, either version 3 of the License, or (at your |
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* option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the Affero GNU General Public License |
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* and the GNU General Public License along with this program. If not, see |
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* <http://www.gnu.org/licenses/>. |
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* |
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* The authors can be reached via e-mail to <support@deliantra.net> |
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*/ |
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|
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// |
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// cfperl.h perl interface |
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// |
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#ifndef CFPERL_H__ |
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#define CFPERL_H__ |
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|
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using namespace std; |
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|
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#include <EXTERN.h> |
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#include <perl.h> |
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#include <XSUB.h> |
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|
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#include <EVAPI.h> |
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#include <CoroAPI.h> |
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|
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#include "util.h" |
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#include "keyword.h" |
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#include "dynbuf.h" |
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#include "callback.h" |
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|
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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|
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// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) |
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#undef localtime |
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#undef srand48 |
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#undef drand48 |
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#undef srandom |
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#undef opendir |
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#undef readdir |
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#undef closedir |
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#undef getprotobyname |
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#undef gethostbyname |
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#undef ctime |
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#undef strerror |
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#undef _ |
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|
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// same here, massive symbol spamming |
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#undef do_open |
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#undef do_close |
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#undef ref |
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#undef seed |
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|
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// perl bug #40256: perl does overwrite those with reentrant versions |
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// but does not initialise their state structures. |
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#undef random |
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#undef crypt |
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|
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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|
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#define _(msg) (msg) |
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#define N_(msg) (msg) |
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|
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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|
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// some macros to simplify perl in-calls |
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|
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#define CHECK_ERROR \ |
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if (SvTRUE (ERRSV)) \ |
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LOG (llevError, "runtime error in %s: %s", __func__, SvPVutf8_nolen (ERRSV)); |
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|
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inline int call_pvsv (const char *ob, I32 flags) { return call_pv (ob, flags); } |
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inline int call_pvsv (SV *ob, I32 flags) { return call_sv (ob, flags); } |
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|
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// TODO: temporarily enabled pushstack/popstack for all calls from the core, to maybe fix object memleak? |
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#define CALL_PUSH PUSHSTACKi (PERLSI_UNKNOWN) |
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#define CALL_POP PUTBACK; POPSTACK; SPAGAIN |
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#define CALL_BEGIN(args) dSP; CALL_PUSH; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args) |
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#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc |
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#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr))) |
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#define CALL_CALL(name, flags) PUTBACK; int count = call_pvsv (name, (flags) | G_EVAL); SPAGAIN; |
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#define CALL_END PUTBACK; CHECK_ERROR; FREETMPS; LEAVE; CALL_POP |
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|
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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|
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void cfperl_init (); |
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void cfperl_main (); |
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void cfperl_tick (); |
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void cfperl_emergency_save (); |
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void cfperl_cleanup (int make_core); |
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void cfperl_make_book (object *book, int level); |
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void cfperl_send_msg (client *ns, int color, const_utf8_string type, const_utf8_string msg); |
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int cfperl_can_merge (object *ob1, object *ob2); |
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void cfperl_mapscript_activate (object *ob, int state, object *activator, object *originator = 0); |
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|
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bool is_match_expr (const_utf8_string expr); |
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// applies the match expression and returns true if it matches |
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bool match (const_utf8_string expr, object *ob, object *self = 0, object *source = 0, object *originator = 0); |
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// same as above, but returns the first object found, or 0 |
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object *match_one (const_utf8_string expr, object *ob, object *self = 0, object *source = 0, object *originator = 0); |
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|
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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|
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#if IVSIZE >= 8 |
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typedef IV val64; |
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typedef IV uval64; |
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# define newSVval64 newSViv |
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# define SvVAL64 SvIV |
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# define newSVuval64 newSVuv |
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# define SvUVAL64 SvUV |
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#else |
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typedef double val64; |
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typedef double uval64; |
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# define newSVval64 newSVnv |
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# define SvVAL64 SvNV |
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# define newSVuval64 newSVnv |
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# define SvUVAL64 SvNV |
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#endif |
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|
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extern tstamp runtime; // virtual server time, excluding time jumps and lag |
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extern tstamp NOW; // real time of current server tick |
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|
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enum event_klass |
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{ |
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KLASS_NONE, |
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KLASS_GLOBAL, |
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KLASS_ATTACHABLE, |
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KLASS_CLIENT, |
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KLASS_PLAYER, |
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KLASS_OBJECT, |
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KLASS_MAP, |
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KLASS_COMMAND, |
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}; |
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|
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enum event_type |
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{ |
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# define def(klass,name) EVENT_ ## klass ## _ ## name, |
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# include "eventinc.h" |
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# undef def |
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NUM_EVENT_TYPES |
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}; |
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|
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// in which global events or per-type events are we interested |
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extern bitset<NUM_EVENT_TYPES> ev_want_event; |
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extern bitset<NUM_TYPES> ev_want_type; |
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|
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#define ARG_AV(o) DT_AV , static_cast<AV *> (o) |
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#define ARG_INT(v) DT_INT , static_cast<int> (v) |
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#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) |
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#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) |
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#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) |
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#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l) |
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#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o)) |
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#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o)) |
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#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o)) |
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#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o)) |
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#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o)) |
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#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o)) |
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#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o)) |
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|
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// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension |
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#define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0) |
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#define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) |
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#define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__) |
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#define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__) |
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#define INVOKE_CLIENT(event, obj, ...) INVOKE (obj , EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__) |
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#define INVOKE_PLAYER(event, obj, ...) INVOKE (obj , EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__) |
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#define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__) |
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|
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//TODO should index into @result |
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#define RESULT(idx,type) cfperl_result_ ## type (idx) |
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#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE) |
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#define RESULT_INT(idx) RESULT(idx, INT) |
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|
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double cfperl_result_DOUBLE (int idx); |
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int cfperl_result_INT (int idx); |
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|
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
190 |
|
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INTERFACE_CLASS (attachable) |
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struct attachable : refcnt_base |
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{ |
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static MGVTBL vtbl; |
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|
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enum { |
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F_DESTROYED = 0x01, |
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F_DEBUG_TRACE = 0x02, |
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}; |
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uint8 ACC (RW, attachable_flags); |
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|
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static unordered_vector<attachable *> mortals; |
203 |
MTH static void check_mortals (); |
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|
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// object is delete'd after the refcount reaches 0 |
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MTH int refcnt_cnt () const; |
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// check wether the object has died and destroy |
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MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); } |
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|
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// destroy the object unless it was already destroyed |
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// this politely asks everybody interested the reduce |
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// the refcount to 0 as soon as possible. |
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MTH void destroy (); |
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|
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// return wether an object was destroyed already |
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MTH bool destroyed () const { return attachable_flags & F_DESTROYED; } |
217 |
|
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virtual void gather_callbacks (AV *&callbacks, event_type event) const; |
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|
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#if 0 |
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private: |
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static refcounted *rc_first; |
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refcounted *rc_next; |
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#endif |
225 |
|
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HV *self; // CF+ perl self |
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AV *cb; // CF+ callbacks |
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shstr attach; // generic extension attachment information |
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|
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void sever_self (); // sever this object from its self, if it has one. |
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void optimise (); // possibly save some memory by destroying unneeded data |
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|
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attachable () |
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: attachable_flags (0), self (0), cb (0), attach (0) |
235 |
{ |
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} |
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|
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attachable (const attachable &src) |
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: attachable_flags (0), self (0), cb (0), attach (src.attach) |
240 |
{ |
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} |
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|
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// set a custom key to the given value, or delete it if value = 0 |
244 |
void set_key (const_utf8_string key, const_utf8_string value = 0, bool is_utf8 = 0); |
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|
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void set_key_text (const_utf8_string key, const_utf8_string value = 0) |
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{ |
248 |
set_key (key, value, 1); |
249 |
} |
250 |
|
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void set_key_data (const_utf8_string key, const_utf8_string value = 0) |
252 |
{ |
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set_key (key, value, 0); |
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} |
255 |
|
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attachable &operator =(const attachable &src); |
257 |
|
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// used to _quickly_ decide wether to shortcut the evaluation |
259 |
bool should_invoke (event_type event) |
260 |
{ |
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return ev_want_event [event] || cb; |
262 |
} |
263 |
|
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bool invoke (event_type event, ...); |
265 |
|
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MTH void instantiate (); |
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void reattach (); |
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|
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protected: |
270 |
// do the real refcount checking work |
271 |
void do_check (); |
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|
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// the method that does the real destroy work |
274 |
virtual void do_destroy (); |
275 |
|
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// destructor is protected, should not be called by anybody |
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virtual ~attachable (); |
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}; |
279 |
|
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// the global object is a pseudo object that cares for the global events |
281 |
struct global : attachable |
282 |
{ |
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void gather_callbacks (AV *&callbacks, event_type event) const; |
284 |
}; |
285 |
|
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extern struct global gbl_ev; |
287 |
|
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
289 |
|
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// a little dirty hack, maybe unify with something else at a later time |
291 |
struct keyword_string |
292 |
{ |
293 |
const char *s; |
294 |
const int l; |
295 |
|
296 |
keyword_string (const char *s, int l) |
297 |
: s(s), l(l) |
298 |
{ } |
299 |
|
300 |
keyword_string (keyword kw) |
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: s(keyword_str [kw]), l(keyword_len [kw]) |
302 |
{ |
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} |
304 |
|
305 |
keyword_string (shstr_tmp sh) |
306 |
: s(&sh), l(sh.length ()) |
307 |
{ |
308 |
} |
309 |
}; |
310 |
|
311 |
#define CS(keyword) keyword_string (# keyword, sizeof (# keyword) - 1) |
312 |
#define KW(keyword) CS(keyword) |
313 |
|
314 |
INTERFACE_CLASS(object_freezer) |
315 |
struct object_freezer : dynbuf_text |
316 |
{ |
317 |
AV *av; |
318 |
|
319 |
object_freezer (); |
320 |
~object_freezer (); |
321 |
|
322 |
// serialise perl part |
323 |
void put_ (attachable *ext); |
324 |
void put (attachable *ext) |
325 |
{ |
326 |
if (expect_false (ext->self)) |
327 |
put_ (ext); |
328 |
} |
329 |
|
330 |
// null value (== no space after keyword) |
331 |
void put (const keyword_string k) |
332 |
{ |
333 |
char *p = force (k.l + 1); |
334 |
memcpy (p, k.s, k.l); p += k.l; *p++ = '\n'; |
335 |
alloc (p); |
336 |
} |
337 |
|
338 |
void put (const keyword_string k, const keyword_string v) |
339 |
{ |
340 |
char *p = force (k.l + 1 + v.l + 1); |
341 |
memcpy (p, k.s, k.l); p += k.l; *p++ = ' '; |
342 |
memcpy (p, v.s, v.l); p += v.l; *p++ = '\n'; |
343 |
alloc (p); |
344 |
} |
345 |
|
346 |
void put (const keyword_string k, const_utf8_string v) |
347 |
{ |
348 |
if (expect_true (v)) |
349 |
put (k, keyword_string (v, strlen (v))); |
350 |
else |
351 |
put (k); |
352 |
} |
353 |
|
354 |
void put (const keyword_string k, shstr_tmp v) |
355 |
{ |
356 |
put (k, keyword_string (v)); |
357 |
} |
358 |
|
359 |
void put (const keyword_string k, double v) |
360 |
{ |
361 |
char *p = force (MAX_KEYWORD_LEN + 2 + 32); |
362 |
memcpy (p, k.s, k.l); p += k.l; *p++ = ' '; |
363 |
p += sprintf (p, "%.7g", v); *p++ = '\n'; |
364 |
alloc (p); |
365 |
} |
366 |
|
367 |
void put_(const keyword_string k, sint64 v) |
368 |
{ |
369 |
force (MAX_KEYWORD_LEN + 2 + sint64_digits); |
370 |
fadd (k.s, k.l); |
371 |
fadd (' '); |
372 |
add (v); |
373 |
fadd ('\n'); |
374 |
} |
375 |
|
376 |
void put_(const keyword_string k, sint32 v) |
377 |
{ |
378 |
force (MAX_KEYWORD_LEN + 2 + sint32_digits); |
379 |
fadd (k.s, k.l); |
380 |
fadd (' '); |
381 |
add (v); |
382 |
fadd ('\n'); |
383 |
} |
384 |
|
385 |
void put (const keyword_string k, float v) { put (k, (double)v); } |
386 |
void put (const keyword_string k, signed char v) { put_(k, (sint32)v); } |
387 |
void put (const keyword_string k, unsigned char v) { put_(k, (sint32)v); } |
388 |
void put (const keyword_string k, signed short v) { put_(k, (sint32)v); } |
389 |
void put (const keyword_string k, unsigned short v) { put_(k, (sint32)v); } |
390 |
void put (const keyword_string k, signed int v) { put_(k, (sint32)v); } |
391 |
void put (const keyword_string k, unsigned int v) { put_(k, (sint64)v); } |
392 |
void put (const keyword_string k, signed long v) { put_(k, (sint64)v); } |
393 |
void put (const keyword_string k, unsigned long v) { put_(k, (sint64)v); } |
394 |
void put (const keyword_string k, signed long long v) { put_(k, (sint64)v); } |
395 |
void put (const keyword_string k, unsigned long long v) { put_(k, (sint64)v); } |
396 |
|
397 |
void put (const keyword_string kbeg, const keyword_string kend, shstr_tmp v) |
398 |
{ |
399 |
force (MAX_KEYWORD_LEN + 1); |
400 |
fadd (kbeg.s, kbeg.l); fadd ('\n'); |
401 |
|
402 |
if (expect_true (v)) |
403 |
{ |
404 |
add (v); |
405 |
add ('\n'); |
406 |
} |
407 |
|
408 |
force (MAX_KEYWORD_LEN + 1); |
409 |
fadd (kend.s, kend.l); fadd ('\n'); |
410 |
} |
411 |
|
412 |
void put (const keyword_string k, archetype *v); |
413 |
void put (const keyword_string k, treasurelist *v); |
414 |
void put (const keyword_string k, faceinfo *v); |
415 |
|
416 |
template<typename T> |
417 |
void put (const keyword_string k, const refptr<T> &v) |
418 |
{ |
419 |
put (k, (T *)v); |
420 |
} |
421 |
|
422 |
MTH bool save (const_octet_string path); |
423 |
utf8_string as_string (); // like strdup |
424 |
|
425 |
operator bool () { return !!av; } |
426 |
}; |
427 |
|
428 |
INTERFACE_CLASS(object_thawer) |
429 |
struct object_thawer |
430 |
{ |
431 |
char *line; // current beginning of line |
432 |
SV *text; // text part |
433 |
AV *av; // perl part |
434 |
int linenum; |
435 |
keyword kw; |
436 |
char *kw_str; // the keyword parsed, as string |
437 |
char *value; // the value, or 0 if no value |
438 |
const char *value_nn; // the value, or the empty string if no value |
439 |
const char *name; |
440 |
|
441 |
operator bool () const { return !!text; } |
442 |
|
443 |
object_thawer (const_utf8_string path = 0); |
444 |
object_thawer (const_utf8_string data, AV *perlav); |
445 |
~object_thawer (); |
446 |
|
447 |
void get (attachable *obj, int oid); |
448 |
|
449 |
// parse next line |
450 |
MTH void next (); |
451 |
// skip the current key-value (usually fetch next line, for |
452 |
// multiline-fields, skips till the corresponding end-kw |
453 |
MTH void skip (); |
454 |
MTH void skip_block (); // skips till and over KW_end |
455 |
|
456 |
bool has_value () { return value; } |
457 |
const_utf8_string get_str () { return value_nn; } // empty string when missing |
458 |
void get_ml (keyword kend, shstr &sh); |
459 |
|
460 |
void get_ornull (shstr &sh) const { sh = value; } |
461 |
void get (shstr &sh) const { sh = value; } // might want to check for non-null here |
462 |
|
463 |
bool get_bool () const { return *value_nn == '1'; } |
464 |
sint32 get_sint32 () const; |
465 |
sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); } |
466 |
double get_double () const { return strtod (value_nn, 0); } |
467 |
|
468 |
void get (float &v) { v = get_double (); } |
469 |
void get (double &v) { v = get_double (); } |
470 |
|
471 |
void get (bool &i) { i = get_bool (); } |
472 |
void get (sint8 &i) { i = get_sint32 (); } |
473 |
void get (uint8 &i) { i = get_sint32 (); } |
474 |
void get (sint16 &i) { i = get_sint32 (); } |
475 |
void get (uint16 &i) { i = get_sint32 (); } |
476 |
void get (sint32 &i) { i = get_sint32 (); } |
477 |
|
478 |
void get (uint32 &i) { i = get_sint64 (); } |
479 |
void get (sint64 &i) { i = get_sint64 (); } |
480 |
|
481 |
MTH void parse_warn (const_utf8_string msg); |
482 |
MTH bool parse_error (const_utf8_string type = 0, const_utf8_string name = 0, bool skip = true); |
483 |
|
484 |
struct delayed_ref { |
485 |
attachable *op; |
486 |
object_ptr *ptr; |
487 |
const_utf8_string ref; |
488 |
}; |
489 |
std::vector<delayed_ref> delrefs; |
490 |
|
491 |
void delayed_deref (attachable *op, object_ptr &ptr, const_utf8_string ref); |
492 |
MTH void resolve_delayed_derefs (bool deref = true); |
493 |
}; |
494 |
|
495 |
//TODO: remove |
496 |
char *fgets (char *s, int n, object_thawer &thawer); |
497 |
|
498 |
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
499 |
|
500 |
struct coroapi { |
501 |
static struct CoroAPI *GCoroAPI; |
502 |
|
503 |
static EV_ATOMIC_T cede_pending; |
504 |
|
505 |
static int nready () { return CORO_NREADY; } |
506 |
static int cede () { cede_pending = 0; return CORO_CEDE ; } |
507 |
|
508 |
static void do_cede_to_tick (); |
509 |
|
510 |
// actually cede's far more often |
511 |
static bool cede_to_tick () |
512 |
{ |
513 |
if (expect_true (!cede_pending)) |
514 |
return false; |
515 |
|
516 |
do_cede_to_tick (); |
517 |
return true; |
518 |
} |
519 |
|
520 |
static void wait_for_tick (); |
521 |
static void wait_for_tick_begin (); |
522 |
}; |
523 |
|
524 |
struct evapi |
525 |
{ |
526 |
static struct EVAPI *GEVAPI; |
527 |
}; |
528 |
|
529 |
struct iow : ev_io, evapi, callback<void (iow &, int)> |
530 |
{ |
531 |
static void thunk (EV_P_ struct ev_io *w_, int revents) |
532 |
{ |
533 |
iow &w = *static_cast<iow *>(w_); |
534 |
|
535 |
w (w, revents); |
536 |
} |
537 |
|
538 |
template<class O, class M> |
539 |
iow (O object, M method) |
540 |
: callback<void (iow &, int)> (object, method) |
541 |
{ |
542 |
ev_init ((ev_io *)this, thunk); |
543 |
} |
544 |
|
545 |
void prio (int prio) |
546 |
{ |
547 |
ev_set_priority ((ev_io *)this, prio); |
548 |
} |
549 |
|
550 |
void set (int fd, int events) |
551 |
{ |
552 |
ev_io_set ((ev_io *)this, fd, events); |
553 |
} |
554 |
|
555 |
int poll () const { return events; } |
556 |
|
557 |
void poll (int events); |
558 |
|
559 |
void start () |
560 |
{ |
561 |
ev_io_start (EV_DEFAULT, (ev_io *)this); |
562 |
} |
563 |
|
564 |
void stop () |
565 |
{ |
566 |
ev_io_stop (EV_DEFAULT, (ev_io *)this); |
567 |
} |
568 |
|
569 |
~iow () |
570 |
{ |
571 |
stop (); |
572 |
} |
573 |
}; |
574 |
|
575 |
struct asyncw : ev_async, evapi, callback<void (ev_async &, int)> |
576 |
{ |
577 |
static void thunk (EV_P_ struct ev_async *w_, int revents) |
578 |
{ |
579 |
asyncw &w = *static_cast<asyncw *>(w_); |
580 |
|
581 |
w (w, revents); |
582 |
} |
583 |
|
584 |
template<class O, class M> |
585 |
asyncw (O object, M method) |
586 |
: callback<void (asyncw &, int)> (object, method) |
587 |
{ |
588 |
ev_init ((ev_async *)this, thunk); |
589 |
} |
590 |
|
591 |
void start () |
592 |
{ |
593 |
ev_async_start (EV_DEFAULT, (ev_async *)this); |
594 |
} |
595 |
|
596 |
void stop () |
597 |
{ |
598 |
ev_async_stop (EV_DEFAULT, (ev_async *)this); |
599 |
} |
600 |
|
601 |
~asyncw () |
602 |
{ |
603 |
stop (); |
604 |
} |
605 |
}; |
606 |
|
607 |
#endif |
608 |
|