--- deliantra/server/include/cfperl.h 2006/08/24 13:13:49 1.1 +++ deliantra/server/include/cfperl.h 2006/08/31 09:19:34 1.18 @@ -1,5 +1,183 @@ // // cfperl.h perl interface // +#ifndef CFPERL_H__ +#define CFPERL_H__ +#include + +using namespace std; + +#include +#include + +#include "keyword.h" + +// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) +#undef localtime +#undef srand48 +#undef drand48 +#undef srandom +#undef readdir +#undef getprotobyname +#undef gethostbyname +#undef ctime +#undef strerror + +// perl bug #40256: perl does overwrite those with reentrant versions +// but does not initialise their state structures. +#undef random +#undef crypt + +void cfperl_init (); +void cfperl_boot (); void cfperl_main (); + +enum event_klass +{ + KLASS_NONE, + KLASS_GLOBAL, + KLASS_PLAYER, + KLASS_OBJECT, + KLASS_MAP, +}; + +enum event_type +{ +# define def(klass,name) EVENT_ ## klass ## _ ## name, +# include "eventinc.h" +# undef def + NUM_EVENT_TYPES +}; + +#define ARG_AV(o) DT_AV , static_cast (o) +#define ARG_INT(v) DT_INT , static_cast (v) +#define ARG_INT64(v) DT_INT64 , static_cast (v) +#define ARG_DOUBLE(v) DT_DOUBLE, static_cast (v) +#define ARG_STRING(v) DT_STRING, static_cast (v) +#define ARG_DATA(s,l) DT_DATA , static_cast (s), (l) +#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast (o) +#define ARG_MAP(o) DT_MAP , (void *)static_cast (o) +#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast (o) +#define ARG_ARCH(o) DT_ARCH , (void *)static_cast (o) +#define ARG_PARTY(o) DT_PARTY , (void *)static_cast (o) +#define ARG_REGION(o) DT_REGION, (void *)static_cast (o) + +// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension + +// all these return true when the normal event processing should be skipped (if any) +#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END) + +#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__) +#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) +#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) +#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) +#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) + +//TODO should index into @result +#define RESULT(idx,type) cfperl_result_ ## type (idx) +#define RESULT_INT(idx) RESULT(idx, INT) + +bool cfperl_invoke (event_type event, ...); +int cfperl_result_INT (int idx); + +struct attachable_base +{ + SV *self; + AV *cb; // CF+ perl self and callback + const char *attach; // generic extension attachment information + + void clear (); // called when free'ing objects + void optimise (); // possibly save some memory by destroying unneeded data + void instantiate (data_type type, void *obj); + + void attachable_init () + { + self = 0; + cb = 0; + attach = 0; + } +}; + +// objects attachable from perl (or any other extension) should include or +// derive using the curiously recurring template pattern, to avoid +// virtual method calls etc. +template +struct attachable : attachable_base +{ + void instantiate () + { + if (attach) + attachable_base::instantiate ((data_type) cftype::dt, static_cast(this)); + } +}; + +struct object_freezer +{ + AV *av; + SV *text; + + object_freezer (); + ~object_freezer (); + + void put (attachable_base *ext); + + template + void put (attachable *obj) + { + put ((attachable_base *)obj); + } + + void put (keyword k); + void put (const char *v); + void put (int v); + + template + void put (keyword k, value v) + { + put (k); + put (v); + } + + bool save (const char *filename); + + operator bool () { return !!av; } +}; + +// compatibility support, should be removed when no longer needed +int fprintf (object_freezer &freezer, const char *format, ...); +int fputs (const char *s, object_freezer &freezer); + +// a single key-value line from a file +struct token { + keyword k; + const char *v; + + token (keyword k, const char *v = 0) : k(k), v(v) { } +}; + +struct object_thawer +{ + AV *av; + FILE *fp; + char line[1024]; + + object_thawer (const char *filename = 0); + ~object_thawer (); + + void get (data_type type, void *obj, attachable_base *ext, int oid); + + template + void get (attachable *obj, int oid) + { + if (av) + get ((data_type) cftype::dt, (subclass *)obj, obj, oid); + } + + token get_token (); + + operator FILE *() { return fp; } +}; + +#endif +