--- deliantra/server/include/cfperl.h	2006/08/25 15:21:56	1.4
+++ deliantra/server/include/cfperl.h	2008/09/08 11:27:25	1.99
@@ -1,67 +1,581 @@
+/*
+ * This file is part of Deliantra, the Roguelike Realtime MMORPG.
+ * 
+ * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
+ * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
+ * Copyright (©) 1992,2007 Frank Tore Johansen
+ * 
+ * Deliantra is free software: you can redistribute it and/or modify
+ * it under the terms of the 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 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__
 
-// could have used templates, but a more traditional C api
-// uses more explicit typing which is ok for this purpose.
-enum data_type {
-  DT_END,     // no further arguments
-  DT_INT,
-  DT_LONG,
-  DT_DOUBLE,
-  DT_STRING,  // 0-terminated string
-  DT_DATA,    // string + length
-  DT_OBJECT,
-  DT_MAP,
-  DT_PLAYER,
-  DT_ARCH,
-  DT_PARTY,
-  DT_REGION,
-};
+#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));
+
+#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_pv (name, (flags) | G_EVAL); SPAGAIN;
+#define CALL_END 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 char *type, const char *msg);
+int cfperl_can_merge (object *ob1, object *ob2);
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#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 {
+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) EV_ ## klass ## name,
+enum event_type
+{
+# define def(klass,name) EVENT_ ## klass ## _ ## name,
 #  include "eventinc.h"
 # undef def
   NUM_EVENT_TYPES
 };
 
-#define ARG_INT(v)    DT_INT   , static_cast<int>    (v)
-#define ARG_LONG(v)   DT_LONG  , static_cast<long>   (v)
-#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
-#define ARG_STRING(v) DT_STRING, static_cast<char *> (v)
-#define ARG_DATA(s,l) DT_DATA  , static_cast<void *> (s), (l)
-#define ARG_OBJECT(o) DT_OBJECT, static_cast<struct object *>    (o)
-#define ARG_MAP(o)    DT_MAP   , static_cast<struct mapstruct *> (o)
-#define ARG_PLAYER(o) DT_PLAYER, static_cast<struct pl *>        (o)
-#define ARG_ARCH(o)   DT_ARCH  , static_cast<struct archetype *> (o)
-#define ARG_PARTY(o)  DT_PARTY , static_cast<struct party *>     (o)
-#define ARG_REGION(o) DT_REGION, static_cast<struct region *>    (o)
+// 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;
+
+  static unordered_vector<attachable *> mortals;
+  MTH static void check_mortals ();
+
+  enum {
+    F_DESTROYED   = 0x01,
+    F_DEBUG_TRACE = 0x02,
+  };
+  int ACC (RW, flags);
+
+  // 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 flags & F_DESTROYED; }
+
+  virtual void gather_callbacks (AV *&callbacks, event_type event) const;
+
+#if 0
+private:
+  static refcounted *rc_first;
+  refcounted *rc_next;
+#endif
 
-// all these return true when the normal event processing should be skipped (if any)
-#define INVOKE(klass, event, ...) cfperl_invoke (EV_ ## klass ## event, ## __VA_ARGS__, DT_END)
+  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 ()
+  : flags (0), self (0), cb (0), attach (0)
+  {
+  }
+
+  attachable (const attachable &src)
+  : 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 char *key, const char *value = 0, bool is_utf8 = 0);
+
+  void set_key_text (const char *key, const char *value = 0)
+  {
+    set_key (key, value, 1);
+  }
+
+  void set_key_data (const char *key, const char *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 ();
 
-#define INVOKE_GLOBAL(event, ...)     INVOKE (GLOBAL, event,                  ## __VA_ARGS__)
-#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__)
-#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__)
-#define INVOKE_MAP(event, map, ...)   INVOKE (MAP   , event, ARG_MAP (map)  , ## __VA_ARGS__)
+  // the method that does the real destroy work
+  virtual void do_destroy ();
 
-bool cfperl_invoke (event_type event, ...);
-void cfperl_free_ob (object *op);
+  // destructor is protected, should not be called by anybody
+  virtual ~attachable ();
+};
 
-void cfperl_init ();
-void cfperl_main ();
+// 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;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+INTERFACE_CLASS(object_freezer)
+struct object_freezer : dynbuf_text
+{
+  AV *av;
+
+  object_freezer ();
+  ~object_freezer ();
+
+  void put (attachable *ext);
+
+  // used only for user-defined key-value pairs
+  void put (const shstr &k, const shstr &v)
+  {
+    add (k);
+
+    if (expect_true (v))
+      add (' '), add (v);
+
+    add ('\n');
+  }
+
+  template<typename T>
+  void put_kw_string (keyword k, const T &v)
+  {
+    int klen = keyword_len [k];
+    int vlen = v ? strlen (v) + 1 : 0;
+
+    char *p = (char *)alloc (klen + vlen + 1);
+
+    memcpy (p, keyword_str [k], klen); p += klen;
+
+    if (expect_true (v))
+      {
+        *p++ = ' ';  vlen--;
+        memcpy (p, v, vlen); p += vlen;
+      }
+
+    *p = '\n';
+  }
+
+  void put (keyword k, const char *v = 0)
+  {
+    put_kw_string (k, v);
+  }
+
+  void put (keyword k, const shstr &v)
+  {
+    put_kw_string (k, v);
+  }
+
+  void put (keyword k, double v)
+  {
+    force (MAX_KEYWORD_LEN + 2 + 32);
+    fadd (keyword_str [k], keyword_len [k]);
+    fadd (' ');
+    falloc (sprintf (ptr, "%.7g", v));
+    fadd ('\n');
+  }
+
+  void put_(keyword k, sint64 v)
+  {
+    force (MAX_KEYWORD_LEN + 2 + sint64_digits);
+    fadd (keyword_str [k], keyword_len [k]);
+    fadd (' ');
+    add (v);
+    fadd ('\n');
+  }
+
+  void put_(keyword k, sint32 v)
+  {
+    force (MAX_KEYWORD_LEN + 2 + sint32_digits);
+    fadd (keyword_str [k], keyword_len [k]);
+    fadd (' ');
+    add (v);
+    fadd ('\n');
+  }
+
+  void put (keyword k,          float     v) { put (k, (double)v); }
+  void put (keyword k,   signed char      v) { put_(k, (sint32)v); }
+  void put (keyword k, unsigned char      v) { put_(k, (sint32)v); }
+  void put (keyword k,   signed short     v) { put_(k, (sint32)v); }
+  void put (keyword k, unsigned short     v) { put_(k, (sint32)v); }
+  void put (keyword k,   signed int       v) { put_(k, (sint32)v); }
+  void put (keyword k, unsigned int       v) { put_(k, (sint64)v); }
+  void put (keyword k,   signed long      v) { put_(k, (sint64)v); }
+  void put (keyword k, unsigned long      v) { put_(k, (sint64)v); }
+  void put (keyword k,   signed long long v) { put_(k, (sint64)v); }
+  void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
+
+  void put (keyword kbeg, keyword kend, const shstr &v)
+  {
+    force (MAX_KEYWORD_LEN + 1);
+    fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
+
+    if (expect_true (v))
+      {
+        add (v);
+        add ('\n');
+      }
+
+    force (MAX_KEYWORD_LEN + 1);
+    fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
+  }
+
+  void put (keyword k, archetype *v);
+  void put (keyword k, treasurelist *v);
+  void put (keyword k, faceinfo *v);
+
+  template<typename T>
+  void put (keyword k, const refptr<T> &v)
+  {
+    put (k, (T *)v);
+  }
+
+  MTH bool save (const_octet_string path);
+  char *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 char *path = 0);
+  object_thawer (const char *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
+
+  char *get_str () { return value; } // may be 0
+  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 char *msg);
+  MTH bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
+
+  struct delayed_ref {
+    attachable *op;
+    object_ptr *ptr;
+    const char *ref;
+  };
+  std::vector<delayed_ref> delrefs;
+
+  void delayed_deref (attachable *op, object_ptr &ptr, const char *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