server/include/cfperl.h

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * 
 * Deliantra is free software: you can redistribute it and/or modify it under
 * the terms of the Affero GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the Affero GNU General Public License
 * and the GNU General Public License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 * 
 * The authors can be reached via e-mail to <support@deliantra.net>
 */

//
// cfperl.h perl interface
//
#ifndef CFPERL_H__
#define CFPERL_H__

#include <cstdarg>
#include <cstdio>
#include <bitset>

using namespace std;

#include <EXTERN.h>
#include <perl.h>
#include <XSUB.h>

#include <EVAPI.h>
#include <CoroAPI.h>

#include "util.h"
#include "keyword.h"
#include "dynbuf.h"
#include "callback.h"

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
#undef localtime
#undef srand48
#undef drand48
#undef srandom
#undef opendir
#undef readdir
#undef closedir
#undef getprotobyname
#undef gethostbyname
#undef ctime
#undef strerror
#undef _

// same here, massive symbol spamming
#undef do_open
#undef do_close
#undef ref
#undef seed

// perl bug #40256: perl does overwrite those with reentrant versions
// but does not initialise their state structures.
#undef random
#undef crypt

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

#define _(msg)  (msg)
#define N_(msg) (msg)

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

// some macros to simplify perl in-calls

#define CHECK_ERROR                     \
  if (SvTRUE (ERRSV))                   \
    LOG (llevError, "runtime error in %s: %s", __func__, SvPVutf8_nolen (ERRSV));

inline int call_pvsv (const char *ob, I32 flags) { return call_pv (ob, flags); }
inline int call_pvsv (SV         *ob, I32 flags) { return call_sv (ob, flags); }

#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
#define CALL_CALL(name, flags) PUTBACK; int count = call_pvsv (name, (flags) | G_EVAL); SPAGAIN;
#define CALL_END PUTBACK; CHECK_ERROR; FREETMPS; LEAVE

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void cfperl_init ();
void cfperl_main ();
void cfperl_tick ();
void cfperl_emergency_save ();
void cfperl_cleanup (int make_core);
void cfperl_make_book (object *book, int level);
void cfperl_send_msg (client *ns, int color, const_utf8_string type, const_utf8_string msg);
int cfperl_can_merge (object *ob1, object *ob2);
void cfperl_mapscript_activate (object *ob, int state, object *activator, object *originator = 0);

bool is_match_expr (const_utf8_string expr);
// applies the match expression and returns true if it matches
bool match (const_utf8_string expr, object *ob, object *self = 0, object *source = 0, object *originator = 0);
// same as above, but returns the first object found, or 0
object *match_one (const_utf8_string expr, object *ob, object *self = 0, object *source = 0, object *originator = 0);

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

#if IVSIZE >= 8
  typedef IV val64;
  typedef IV uval64;
# define newSVval64 newSViv
# define SvVAL64 SvIV
# define newSVuval64 newSVuv
# define SvUVAL64 SvUV
#else
  typedef double val64;
  typedef double uval64;
# define newSVval64 newSVnv
# define SvVAL64 SvNV
# define newSVuval64 newSVnv
# define SvUVAL64 SvNV
#endif

extern tstamp runtime; // virtual server time, excluding time jumps and lag
extern tstamp NOW;     // real time of current server tick

enum event_klass
{
  KLASS_NONE,
  KLASS_GLOBAL,
  KLASS_ATTACHABLE,
  KLASS_CLIENT,
  KLASS_PLAYER,
  KLASS_OBJECT,
  KLASS_MAP,
  KLASS_COMMAND,
};

enum event_type
{
# define def(klass,name) EVENT_ ## klass ## _ ## name,
#  include "eventinc.h"
# undef def
  NUM_EVENT_TYPES
};

// in which global events or per-type events are we interested
extern bitset<NUM_EVENT_TYPES> ev_want_event;
extern bitset<NUM_TYPES>       ev_want_type;

#define ARG_AV(o)         DT_AV    , static_cast<AV *>   (o)
#define ARG_INT(v)        DT_INT   , static_cast<int>    (v)
#define ARG_INT64(v)      DT_INT64 , static_cast<sint64> (v)
#define ARG_DOUBLE(v)     DT_DOUBLE, static_cast<double> (v)
#define ARG_STRING(v)     DT_STRING, static_cast<const char *> (v)
#define ARG_DATA(s,l)     DT_DATA  , static_cast<const void *> (s), int (l)
#define ARG_OBJECT(o)     DT_OBJECT, (void *)(static_cast<object *>    (o))
#define ARG_MAP(o)        DT_MAP   , (void *)(static_cast<maptile *>   (o))
#define ARG_PLAYER(o)     DT_PLAYER, (void *)(static_cast<player *>    (o))
#define ARG_ARCH(o)       DT_ARCH  , (void *)(static_cast<archetype *> (o))
#define ARG_CLIENT(o)     DT_CLIENT, (void *)(static_cast<client *>    (o))
#define ARG_PARTY(o)      DT_PARTY , (void *)(static_cast<party *>     (o))
#define ARG_REGION(o)     DT_REGION, (void *)(static_cast<region *>    (o))

// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
#define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0)
#define INVOKE_GLOBAL(event, ...)          INVOKE (&gbl_ev, EVENT_ ## GLOBAL     ## _ ## event, ## __VA_ARGS__)
#define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj    , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__)
#define INVOKE_OBJECT(event, obj, ...)     INVOKE (obj    , EVENT_ ## OBJECT     ## _ ## event, ## __VA_ARGS__)
#define INVOKE_CLIENT(event, obj, ...)     INVOKE (obj    , EVENT_ ## CLIENT     ## _ ## event, ## __VA_ARGS__)
#define INVOKE_PLAYER(event, obj, ...)     INVOKE (obj    , EVENT_ ## PLAYER     ## _ ## event, ## __VA_ARGS__)
#define INVOKE_MAP(event, obj, ...)        INVOKE (obj    , EVENT_ ## MAP        ## _ ## event, ## __VA_ARGS__)

//TODO should index into @result
#define RESULT(idx,type) cfperl_result_ ## type (idx)
#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
#define RESULT_INT(idx)    RESULT(idx, INT)

double cfperl_result_DOUBLE (int idx);
int cfperl_result_INT (int idx);

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

INTERFACE_CLASS (attachable)
struct attachable : refcnt_base
{
  static MGVTBL vtbl;

  enum {
    F_DESTROYED   = 0x01,
    F_DEBUG_TRACE = 0x02,
  };
  uint8 ACC (RW, attachable_flags);

  static unordered_vector<attachable *> mortals;
  MTH static void check_mortals ();

  // object is delete'd after the refcount reaches 0
  MTH int refcnt_cnt () const;
  // check wether the object has died and destroy
  MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); }

  // destroy the object unless it was already destroyed
  // this politely asks everybody interested the reduce
  // the refcount to 0 as soon as possible.
  MTH void destroy ();

  // return wether an object was destroyed already
  MTH bool destroyed () const { return attachable_flags & F_DESTROYED; }

  virtual void gather_callbacks (AV *&callbacks, event_type event) const;

#if 0
private:
  static refcounted *rc_first;
  refcounted *rc_next;
#endif

  HV *self;     // CF+ perl self
  AV *cb;       // CF+ callbacks
  shstr attach; // generic extension attachment information

  void sever_self (); // sever this object from its self, if it has one.
  void optimise ();   // possibly save some memory by destroying unneeded data

  attachable ()
  : attachable_flags (0), self (0), cb (0), attach (0)
  {
  }

  attachable (const attachable &src)
  : attachable_flags (0), self (0), cb (0), attach (src.attach)
  {
  }

  // set a custom key to the given value, or delete it if value = 0
  void set_key (const_utf8_string key, const_utf8_string value = 0, bool is_utf8 = 0);

  void set_key_text (const_utf8_string key, const_utf8_string value = 0)
  {
    set_key (key, value, 1);
  }

  void set_key_data (const_utf8_string key, const_utf8_string value = 0)
  {
    set_key (key, value, 0);
  }

  attachable &operator =(const attachable &src);

  // used to _quickly_ device wether to shortcut the evaluation
  bool should_invoke (event_type event)
  {
    return ev_want_event [event] || cb;
  }

  bool invoke (event_type event, ...);

  MTH void instantiate ();
  void reattach ();

protected:
  // do the real refcount checking work
  void do_check ();

  // the method that does the real destroy work
  virtual void do_destroy ();

  // destructor is protected, should not be called by anybody
  virtual ~attachable ();
};

// the global object is a pseudo object that cares for the global events
struct global : attachable
{
  void gather_callbacks (AV *&callbacks, event_type event) const;
};

extern struct global gbl_ev;

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

// a little dirty hack, maybe unify with something else at a later time
struct keyword_string
{
  const char *s;
  const int l;

  keyword_string (const char *s, int l)
  : s(s), l(l)
  { }

  keyword_string (keyword kw)
  : s(keyword_str [kw]), l(keyword_len [kw])
  {
  }

  keyword_string (shstr_tmp sh)
  : s(&sh), l(sh.length ())
  {
  }
};

#define CS(keyword) keyword_string (# keyword, sizeof (# keyword) - 1)
#define KW(keyword) CS(keyword)

INTERFACE_CLASS(object_freezer)
struct object_freezer : dynbuf_text
{
  AV *av;

  object_freezer ();
  ~object_freezer ();

  // serialise perl part
  void put_ (attachable *ext);
  void put (attachable *ext)
  {
    if (expect_false (ext->self))
      put_ (ext);
  }

  // null value (== no space after keyword)
  void put (const keyword_string k)
  {
    char *p = force (k.l + 1);
    memcpy (p, k.s, k.l); p += k.l; *p++ = '\n';
    alloc (p);
  }

  void put (const keyword_string k, const keyword_string v)
  {
    char *p = force (k.l + 1 + v.l + 1);
    memcpy (p, k.s, k.l); p += k.l; *p++ = ' ';
    memcpy (p, v.s, v.l); p += v.l; *p++ = '\n';
    alloc (p);
  }

  void put (const keyword_string k, const_utf8_string v)
  {
    if (expect_true (v))
      put (k, keyword_string (v, strlen (v)));
    else
      put (k);
  }

  void put (const keyword_string k, shstr_tmp v)
  {
    put (k, keyword_string (v));
  }

  void put (const keyword_string k, double v)
  {
    char *p = force (MAX_KEYWORD_LEN + 2 + 32);
    memcpy (p, k.s, k.l); p += k.l; *p++ = ' ';
    p += sprintf (p, "%.7g", v); *p++ = '\n';
    alloc (p);
  }

  void put_(const keyword_string k, sint64 v)
  {
    force (MAX_KEYWORD_LEN + 2 + sint64_digits);
    fadd (k.s, k.l);
    fadd (' ');
    add (v);
    fadd ('\n');
  }

  void put_(const keyword_string k, sint32 v)
  {
    force (MAX_KEYWORD_LEN + 2 + sint32_digits);
    fadd (k.s, k.l);
    fadd (' ');
    add (v);
    fadd ('\n');
  }

  void put (const keyword_string k,          float     v) { put (k, (double)v); }
  void put (const keyword_string k,   signed char      v) { put_(k, (sint32)v); }
  void put (const keyword_string k, unsigned char      v) { put_(k, (sint32)v); }
  void put (const keyword_string k,   signed short     v) { put_(k, (sint32)v); }
  void put (const keyword_string k, unsigned short     v) { put_(k, (sint32)v); }
  void put (const keyword_string k,   signed int       v) { put_(k, (sint32)v); }
  void put (const keyword_string k, unsigned int       v) { put_(k, (sint64)v); }
  void put (const keyword_string k,   signed long      v) { put_(k, (sint64)v); }
  void put (const keyword_string k, unsigned long      v) { put_(k, (sint64)v); }
  void put (const keyword_string k,   signed long long v) { put_(k, (sint64)v); }
  void put (const keyword_string k, unsigned long long v) { put_(k, (sint64)v); }

  void put (const keyword_string kbeg, const keyword_string kend, shstr_tmp v)
  {
    force (MAX_KEYWORD_LEN + 1);
    fadd (kbeg.s, kbeg.l); fadd ('\n');

    if (expect_true (v))
      {
        add (v);
        add ('\n');
      }

    force (MAX_KEYWORD_LEN + 1);
    fadd (kend.s, kend.l); fadd ('\n');
  }

  void put (const keyword_string k, archetype *v);
  void put (const keyword_string k, treasurelist *v);
  void put (const keyword_string k, faceinfo *v);

  template<typename T>
  void put (const keyword_string k, const refptr<T> &v)
  {
    put (k, (T *)v);
  }

  MTH bool save (const_octet_string path);
  utf8_string as_string (); // like strdup

  operator bool () { return !!av; }
};

INTERFACE_CLASS(object_thawer)
struct object_thawer
{
  char *line; // current beginning of line
  SV *text; // text part
  AV *av;   // perl part
  int linenum;
  keyword kw;
  char *kw_str; // the keyword parsed, as string
  char *value;  // the value, or 0 if no value
  const char *value_nn; // the value, or the empty string if no value
  const char *name;

  operator bool () const { return !!text; }

  object_thawer (const_utf8_string path = 0);
  object_thawer (const_utf8_string data, AV *perlav);
  ~object_thawer ();

  void get (attachable *obj, int oid);

  // parse next line
  MTH void next ();
  // skip the current key-value (usually fetch next line, for
  // multiline-fields, skips till the corresponding end-kw
  MTH void skip ();
  MTH void skip_block (); // skips till and over KW_end

  bool has_value () { return value; }
  const_utf8_string get_str () { return value_nn; } // empty string when missing
  void get_ml (keyword kend, shstr &sh);

  void get_ornull (shstr &sh) const { sh = value; }
  void get (shstr &sh)        const { sh = value; } // might want to check for non-null here

  bool   get_bool   () const { return *value_nn == '1'; }
  sint32 get_sint32 () const;
  sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
  double get_double () const { return strtod  (value_nn, 0); }

  void get (float  &v) { v = get_double (); }
  void get (double &v) { v = get_double (); }

  void get (bool   &i) { i = get_bool   (); }
  void get (sint8  &i) { i = get_sint32 (); }
  void get (uint8  &i) { i = get_sint32 (); }
  void get (sint16 &i) { i = get_sint32 (); }
  void get (uint16 &i) { i = get_sint32 (); }
  void get (sint32 &i) { i = get_sint32 (); }

  void get (uint32 &i) { i = get_sint64 (); }
  void get (sint64 &i) { i = get_sint64 (); }

  MTH void parse_warn (const_utf8_string msg);
  MTH bool parse_error (const_utf8_string type = 0, const_utf8_string name = 0, bool skip = true);

  struct delayed_ref {
    attachable *op;
    object_ptr *ptr;
    const_utf8_string ref;
  };
  std::vector<delayed_ref> delrefs;

  void delayed_deref (attachable *op, object_ptr &ptr, const_utf8_string ref);
  MTH void resolve_delayed_derefs (bool deref = true);
};

//TODO: remove
char *fgets (char *s, int n, object_thawer &thawer);

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

struct coroapi {
  static struct CoroAPI *GCoroAPI;

  static EV_ATOMIC_T cede_pending;

  static int nready () {                   return CORO_NREADY; }
  static int cede   () { cede_pending = 0; return CORO_CEDE  ; }

  static void do_cede_to_tick ();

  // actually cede's far more often
  static bool cede_to_tick ()
  {
    if (expect_true (!cede_pending))
      return false;

    do_cede_to_tick ();
    return true;
  }

  static void wait_for_tick ();
  static void wait_for_tick_begin ();
};

struct evapi
{
  static struct EVAPI *GEVAPI;
};

struct iow : ev_io, evapi, callback<void (iow &, int)>
{
  static void thunk (EV_P_ struct ev_io *w_, int revents)
  {
    iow &w = *static_cast<iow *>(w_);
    
    w (w, revents);
  }

  template<class O, class M>
  iow (O object, M method)
  : callback<void (iow &, int)> (object, method)
  {
    ev_init ((ev_io *)this, thunk);
  }

  void prio (int prio)
  {
    ev_set_priority ((ev_io *)this, prio);
  }

  void set (int fd, int events)
  {
    ev_io_set ((ev_io *)this, fd, events);
  }

  int poll () const { return events; }

  void poll (int events);

  void start ()
  {
    ev_io_start (EV_DEFAULT, (ev_io *)this);
  }

  void stop ()
  {
    ev_io_stop (EV_DEFAULT, (ev_io *)this);
  }

  ~iow ()
  {
    stop ();
  }
};

struct asyncw : ev_async, evapi, callback<void (ev_async &, int)>
{
  static void thunk (EV_P_ struct ev_async *w_, int revents)
  {
    asyncw &w = *static_cast<asyncw *>(w_);
    
    w (w, revents);
  }

  template<class O, class M>
  asyncw (O object, M method)
  : callback<void (asyncw &, int)> (object, method)
  {
    ev_init ((ev_async *)this, thunk);
  }

  void start ()
  {
    ev_async_start (EV_DEFAULT, (ev_async *)this);
  }

  void stop ()
  {
    ev_async_stop (EV_DEFAULT, (ev_async *)this);
  }

  ~asyncw ()
  {
    stop ();
  }
};

#endif

Revision:	1.115
Committed:	Sat Jan 16 17:57:32 2010 UTC (14 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_93
Changes since 1.114:	+1 -1 lines
Log Message:	big mistake, let's keep filenames as octet strings
#	Content
1	/*
2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*
4	* Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	*
6	* Deliantra is free software: you can redistribute it and/or modify it under
7	* the terms of the Affero GNU General Public License as published by the
8	* Free Software Foundation, either version 3 of the License, or (at your
9	* option) any later version.
10	*
11	* This program is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the Affero GNU General Public License
17	* and the GNU General Public License along with this program. If not, see
18	* <http://www.gnu.org/licenses/>.
19	*
20	* The authors can be reached via e-mail to <support@deliantra.net>
21	*/
22
23	//
24	// cfperl.h perl interface
25	//
26	#ifndef CFPERL_H__
27	#define CFPERL_H__
28
29	#include <cstdarg>
30	#include <cstdio>
31	#include <bitset>
32
33	using namespace std;
34
35	#include <EXTERN.h>
36	#include <perl.h>
37	#include <XSUB.h>
38
39	#include <EVAPI.h>
40	#include <CoroAPI.h>
41
42	#include "util.h"
43	#include "keyword.h"
44	#include "dynbuf.h"
45	#include "callback.h"
46
47	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
48
49	// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
50	#undef localtime
51	#undef srand48
52	#undef drand48
53	#undef srandom
54	#undef opendir
55	#undef readdir
56	#undef closedir
57	#undef getprotobyname
58	#undef gethostbyname
59	#undef ctime
60	#undef strerror
61	#undef _
62
63	// same here, massive symbol spamming
64	#undef do_open
65	#undef do_close
66	#undef ref
67	#undef seed
68
69	// perl bug #40256: perl does overwrite those with reentrant versions
70	// but does not initialise their state structures.
71	#undef random
72	#undef crypt
73
74	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
75
76	#define _(msg) (msg)
77	#define N_(msg) (msg)
78
79	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
80
81	// some macros to simplify perl in-calls
82
83	#define CHECK_ERROR \
84	if (SvTRUE (ERRSV)) \
85	LOG (llevError, "runtime error in %s: %s", __func__, SvPVutf8_nolen (ERRSV));
86
87	inline int call_pvsv (const char *ob, I32 flags) { return call_pv (ob, flags); }
88	inline int call_pvsv (SV *ob, I32 flags) { return call_sv (ob, flags); }
89
90	#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
91	#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
92	#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
93	#define CALL_CALL(name, flags) PUTBACK; int count = call_pvsv (name, (flags) \| G_EVAL); SPAGAIN;
94	#define CALL_END PUTBACK; CHECK_ERROR; FREETMPS; LEAVE
95
96	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
97
98	void cfperl_init ();
99	void cfperl_main ();
100	void cfperl_tick ();
101	void cfperl_emergency_save ();
102	void cfperl_cleanup (int make_core);
103	void cfperl_make_book (object *book, int level);
104	void cfperl_send_msg (client *ns, int color, const_utf8_string type, const_utf8_string msg);
105	int cfperl_can_merge (object ob1, object ob2);
106	void cfperl_mapscript_activate (object ob, int state, object activator, object *originator = 0);
107
108	bool is_match_expr (const_utf8_string expr);
109	// applies the match expression and returns true if it matches
110	bool match (const_utf8_string expr, object ob, object self = 0, object source = 0, object originator = 0);
111	// same as above, but returns the first object found, or 0
112	object match_one (const_utf8_string expr, object ob, object self = 0, object source = 0, object *originator = 0);
113
114	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
115
116	#if IVSIZE >= 8
117	typedef IV val64;
118	typedef IV uval64;
119	# define newSVval64 newSViv
120	# define SvVAL64 SvIV
121	# define newSVuval64 newSVuv
122	# define SvUVAL64 SvUV
123	#else
124	typedef double val64;
125	typedef double uval64;
126	# define newSVval64 newSVnv
127	# define SvVAL64 SvNV
128	# define newSVuval64 newSVnv
129	# define SvUVAL64 SvNV
130	#endif
131
132	extern tstamp runtime; // virtual server time, excluding time jumps and lag
133	extern tstamp NOW; // real time of current server tick
134
135	enum event_klass
136	{
137	KLASS_NONE,
138	KLASS_GLOBAL,
139	KLASS_ATTACHABLE,
140	KLASS_CLIENT,
141	KLASS_PLAYER,
142	KLASS_OBJECT,
143	KLASS_MAP,
144	KLASS_COMMAND,
145	};
146
147	enum event_type
148	{
149	# define def(klass,name) EVENT_ ## klass ## _ ## name,
150	# include "eventinc.h"
151	# undef def
152	NUM_EVENT_TYPES
153	};
154
155	// in which global events or per-type events are we interested
156	extern bitset<NUM_EVENT_TYPES> ev_want_event;
157	extern bitset<NUM_TYPES> ev_want_type;
158
159	#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
160	#define ARG_INT(v) DT_INT , static_cast<int> (v)
161	#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
162	#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
163	#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
164	#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
165	#define ARG_OBJECT(o) DT_OBJECT, (void )(static_cast<object > (o))
166	#define ARG_MAP(o) DT_MAP , (void )(static_cast<maptile > (o))
167	#define ARG_PLAYER(o) DT_PLAYER, (void )(static_cast<player > (o))
168	#define ARG_ARCH(o) DT_ARCH , (void )(static_cast<archetype > (o))
169	#define ARG_CLIENT(o) DT_CLIENT, (void )(static_cast<client > (o))
170	#define ARG_PARTY(o) DT_PARTY , (void )(static_cast<party > (o))
171	#define ARG_REGION(o) DT_REGION, (void )(static_cast<region > (o))
172
173	// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
174	#define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0)
175	#define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
176	#define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__)
177	#define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__)
178	#define INVOKE_CLIENT(event, obj, ...) INVOKE (obj , EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__)
179	#define INVOKE_PLAYER(event, obj, ...) INVOKE (obj , EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__)
180	#define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__)
181
182	//TODO should index into @result
183	#define RESULT(idx,type) cfperl_result_ ## type (idx)
184	#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
185	#define RESULT_INT(idx) RESULT(idx, INT)
186
187	double cfperl_result_DOUBLE (int idx);
188	int cfperl_result_INT (int idx);
189
190	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
191
192	INTERFACE_CLASS (attachable)
193	struct attachable : refcnt_base
194	{
195	static MGVTBL vtbl;
196
197	enum {
198	F_DESTROYED = 0x01,
199	F_DEBUG_TRACE = 0x02,
200	};
201	uint8 ACC (RW, attachable_flags);
202
203	static unordered_vector<attachable *> mortals;
204	MTH static void check_mortals ();
205
206	// object is delete'd after the refcount reaches 0
207	MTH int refcnt_cnt () const;
208	// check wether the object has died and destroy
209	MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); }
210
211	// destroy the object unless it was already destroyed
212	// this politely asks everybody interested the reduce
213	// the refcount to 0 as soon as possible.
214	MTH void destroy ();
215
216	// return wether an object was destroyed already
217	MTH bool destroyed () const { return attachable_flags & F_DESTROYED; }
218
219	virtual void gather_callbacks (AV *&callbacks, event_type event) const;
220
221	#if 0
222	private:
223	static refcounted *rc_first;
224	refcounted *rc_next;
225	#endif
226
227	HV *self; // CF+ perl self
228	AV *cb; // CF+ callbacks
229	shstr attach; // generic extension attachment information
230
231	void sever_self (); // sever this object from its self, if it has one.
232	void optimise (); // possibly save some memory by destroying unneeded data
233
234	attachable ()
235	: attachable_flags (0), self (0), cb (0), attach (0)
236	{
237	}
238
239	attachable (const attachable &src)
240	: attachable_flags (0), self (0), cb (0), attach (src.attach)
241	{
242	}
243
244	// set a custom key to the given value, or delete it if value = 0
245	void set_key (const_utf8_string key, const_utf8_string value = 0, bool is_utf8 = 0);
246
247	void set_key_text (const_utf8_string key, const_utf8_string value = 0)
248	{
249	set_key (key, value, 1);
250	}
251
252	void set_key_data (const_utf8_string key, const_utf8_string value = 0)
253	{
254	set_key (key, value, 0);
255	}
256
257	attachable &operator =(const attachable &src);
258
259	// used to _quickly_ device wether to shortcut the evaluation
260	bool should_invoke (event_type event)
261	{
262	return ev_want_event [event] \|\| cb;
263	}
264
265	bool invoke (event_type event, ...);
266
267	MTH void instantiate ();
268	void reattach ();
269
270	protected:
271	// do the real refcount checking work
272	void do_check ();
273
274	// the method that does the real destroy work
275	virtual void do_destroy ();
276
277	// destructor is protected, should not be called by anybody
278	virtual ~attachable ();
279	};
280
281	// the global object is a pseudo object that cares for the global events
282	struct global : attachable
283	{
284	void gather_callbacks (AV *&callbacks, event_type event) const;
285	};
286
287	extern struct global gbl_ev;
288
289	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
290
291	// a little dirty hack, maybe unify with something else at a later time
292	struct keyword_string
293	{
294	const char *s;
295	const int l;
296
297	keyword_string (const char *s, int l)
298	: s(s), l(l)
299	{ }
300
301	keyword_string (keyword kw)
302	: s(keyword_str [kw]), l(keyword_len [kw])
303	{
304	}
305
306	keyword_string (shstr_tmp sh)
307	: s(&sh), l(sh.length ())
308	{
309	}
310	};
311
312	#define CS(keyword) keyword_string (# keyword, sizeof (# keyword) - 1)
313	#define KW(keyword) CS(keyword)
314
315	INTERFACE_CLASS(object_freezer)
316	struct object_freezer : dynbuf_text
317	{
318	AV *av;
319
320	object_freezer ();
321	~object_freezer ();
322
323	// serialise perl part
324	void put_ (attachable *ext);
325	void put (attachable *ext)
326	{
327	if (expect_false (ext->self))
328	put_ (ext);
329	}
330
331	// null value (== no space after keyword)
332	void put (const keyword_string k)
333	{
334	char *p = force (k.l + 1);
335	memcpy (p, k.s, k.l); p += k.l; *p++ = '\n';
336	alloc (p);
337	}
338
339	void put (const keyword_string k, const keyword_string v)
340	{
341	char *p = force (k.l + 1 + v.l + 1);
342	memcpy (p, k.s, k.l); p += k.l; *p++ = ' ';
343	memcpy (p, v.s, v.l); p += v.l; *p++ = '\n';
344	alloc (p);
345	}
346
347	void put (const keyword_string k, const_utf8_string v)
348	{
349	if (expect_true (v))
350	put (k, keyword_string (v, strlen (v)));
351	else
352	put (k);
353	}
354
355	void put (const keyword_string k, shstr_tmp v)
356	{
357	put (k, keyword_string (v));
358	}
359
360	void put (const keyword_string k, double v)
361	{
362	char *p = force (MAX_KEYWORD_LEN + 2 + 32);
363	memcpy (p, k.s, k.l); p += k.l; *p++ = ' ';
364	p += sprintf (p, "%.7g", v); *p++ = '\n';
365	alloc (p);
366	}
367
368	void put_(const keyword_string k, sint64 v)
369	{
370	force (MAX_KEYWORD_LEN + 2 + sint64_digits);
371	fadd (k.s, k.l);
372	fadd (' ');
373	add (v);
374	fadd ('\n');
375	}
376
377	void put_(const keyword_string k, sint32 v)
378	{
379	force (MAX_KEYWORD_LEN + 2 + sint32_digits);
380	fadd (k.s, k.l);
381	fadd (' ');
382	add (v);
383	fadd ('\n');
384	}
385
386	void put (const keyword_string k, float v) { put (k, (double)v); }
387	void put (const keyword_string k, signed char v) { put_(k, (sint32)v); }
388	void put (const keyword_string k, unsigned char v) { put_(k, (sint32)v); }
389	void put (const keyword_string k, signed short v) { put_(k, (sint32)v); }
390	void put (const keyword_string k, unsigned short v) { put_(k, (sint32)v); }
391	void put (const keyword_string k, signed int v) { put_(k, (sint32)v); }
392	void put (const keyword_string k, unsigned int v) { put_(k, (sint64)v); }
393	void put (const keyword_string k, signed long v) { put_(k, (sint64)v); }
394	void put (const keyword_string k, unsigned long v) { put_(k, (sint64)v); }
395	void put (const keyword_string k, signed long long v) { put_(k, (sint64)v); }
396	void put (const keyword_string k, unsigned long long v) { put_(k, (sint64)v); }
397
398	void put (const keyword_string kbeg, const keyword_string kend, shstr_tmp v)
399	{
400	force (MAX_KEYWORD_LEN + 1);
401	fadd (kbeg.s, kbeg.l); fadd ('\n');
402
403	if (expect_true (v))
404	{
405	add (v);
406	add ('\n');
407	}
408
409	force (MAX_KEYWORD_LEN + 1);
410	fadd (kend.s, kend.l); fadd ('\n');
411	}
412
413	void put (const keyword_string k, archetype *v);
414	void put (const keyword_string k, treasurelist *v);
415	void put (const keyword_string k, faceinfo *v);
416
417	template<typename T>
418	void put (const keyword_string k, const refptr<T> &v)
419	{
420	put (k, (T *)v);
421	}
422
423	MTH bool save (const_octet_string path);
424	utf8_string as_string (); // like strdup
425
426	operator bool () { return !!av; }
427	};
428
429	INTERFACE_CLASS(object_thawer)
430	struct object_thawer
431	{
432	char *line; // current beginning of line
433	SV *text; // text part
434	AV *av; // perl part
435	int linenum;
436	keyword kw;
437	char *kw_str; // the keyword parsed, as string
438	char *value; // the value, or 0 if no value
439	const char *value_nn; // the value, or the empty string if no value
440	const char *name;
441
442	operator bool () const { return !!text; }
443
444	object_thawer (const_utf8_string path = 0);
445	object_thawer (const_utf8_string data, AV *perlav);
446	~object_thawer ();
447
448	void get (attachable *obj, int oid);
449
450	// parse next line
451	MTH void next ();
452	// skip the current key-value (usually fetch next line, for
453	// multiline-fields, skips till the corresponding end-kw
454	MTH void skip ();
455	MTH void skip_block (); // skips till and over KW_end
456
457	bool has_value () { return value; }
458	const_utf8_string get_str () { return value_nn; } // empty string when missing
459	void get_ml (keyword kend, shstr &sh);
460
461	void get_ornull (shstr &sh) const { sh = value; }
462	void get (shstr &sh) const { sh = value; } // might want to check for non-null here
463
464	bool get_bool () const { return *value_nn == '1'; }
465	sint32 get_sint32 () const;
466	sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
467	double get_double () const { return strtod (value_nn, 0); }
468
469	void get (float &v) { v = get_double (); }
470	void get (double &v) { v = get_double (); }
471
472	void get (bool &i) { i = get_bool (); }
473	void get (sint8 &i) { i = get_sint32 (); }
474	void get (uint8 &i) { i = get_sint32 (); }
475	void get (sint16 &i) { i = get_sint32 (); }
476	void get (uint16 &i) { i = get_sint32 (); }
477	void get (sint32 &i) { i = get_sint32 (); }
478
479	void get (uint32 &i) { i = get_sint64 (); }
480	void get (sint64 &i) { i = get_sint64 (); }
481
482	MTH void parse_warn (const_utf8_string msg);
483	MTH bool parse_error (const_utf8_string type = 0, const_utf8_string name = 0, bool skip = true);
484
485	struct delayed_ref {
486	attachable *op;
487	object_ptr *ptr;
488	const_utf8_string ref;
489	};
490	std::vector<delayed_ref> delrefs;
491
492	void delayed_deref (attachable *op, object_ptr &ptr, const_utf8_string ref);
493	MTH void resolve_delayed_derefs (bool deref = true);
494	};
495
496	//TODO: remove
497	char fgets (char s, int n, object_thawer &thawer);
498
499	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
500
501	struct coroapi {
502	static struct CoroAPI *GCoroAPI;
503
504	static EV_ATOMIC_T cede_pending;
505
506	static int nready () { return CORO_NREADY; }
507	static int cede () { cede_pending = 0; return CORO_CEDE ; }
508
509	static void do_cede_to_tick ();
510
511	// actually cede's far more often
512	static bool cede_to_tick ()
513	{
514	if (expect_true (!cede_pending))
515	return false;
516
517	do_cede_to_tick ();
518	return true;
519	}
520
521	static void wait_for_tick ();
522	static void wait_for_tick_begin ();
523	};
524
525	struct evapi
526	{
527	static struct EVAPI *GEVAPI;
528	};
529
530	struct iow : ev_io, evapi, callback<void (iow &, int)>
531	{
532	static void thunk (EV_P_ struct ev_io *w_, int revents)
533	{
534	iow &w = static_cast<iow >(w_);
535
536	w (w, revents);
537	}
538
539	template<class O, class M>
540	iow (O object, M method)
541	: callback<void (iow &, int)> (object, method)
542	{
543	ev_init ((ev_io *)this, thunk);
544	}
545
546	void prio (int prio)
547	{
548	ev_set_priority ((ev_io *)this, prio);
549	}
550
551	void set (int fd, int events)
552	{
553	ev_io_set ((ev_io *)this, fd, events);
554	}
555
556	int poll () const { return events; }
557
558	void poll (int events);
559
560	void start ()
561	{
562	ev_io_start (EV_DEFAULT, (ev_io *)this);
563	}
564
565	void stop ()
566	{
567	ev_io_stop (EV_DEFAULT, (ev_io *)this);
568	}
569
570	~iow ()
571	{
572	stop ();
573	}
574	};
575
576	struct asyncw : ev_async, evapi, callback<void (ev_async &, int)>
577	{
578	static void thunk (EV_P_ struct ev_async *w_, int revents)
579	{
580	asyncw &w = static_cast<asyncw >(w_);
581
582	w (w, revents);
583	}
584
585	template<class O, class M>
586	asyncw (O object, M method)
587	: callback<void (asyncw &, int)> (object, method)
588	{
589	ev_init ((ev_async *)this, thunk);
590	}
591
592	void start ()
593	{
594	ev_async_start (EV_DEFAULT, (ev_async *)this);
595	}
596
597	void stop ()
598	{
599	ev_async_stop (EV_DEFAULT, (ev_async *)this);
600	}
601
602	~asyncw ()
603	{
604	stop ();
605	}
606	};
607
608	#endif
609