server/include/cfperl.h

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

#include <cstdio>

using namespace std;

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

#include <EventAPI.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 readdir
#undef getprotobyname
#undef gethostbyname
#undef ctime
#undef strerror

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

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

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

// some macros to simplify perl in-calls

// FUNCTION is, afaik, a gnu extension
#define CHECK_ERROR                     \
  if (SvTRUE (ERRSV))                   \
    LOG (llevError, "runtime error in %s: %s\n", __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 ();

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

// virtual server time, excluding time jumps and lag
extern double runtime;

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
};

#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

// all these return true when the normal event processing should be skipped (if any)
#define INVOKE_GLOBAL(event, ...)          gbl_ev.invoke (EVENT_ ## GLOBAL     ## _ ## event, ## __VA_ARGS__, DT_END)
#define INVOKE_ATTACHABLE(event, obj, ...) (obj)->invoke (EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__, DT_END)
#define INVOKE_OBJECT(event, obj, ...)     (obj)->invoke (EVENT_ ## OBJECT     ## _ ## event, ## __VA_ARGS__, DT_END)
#define INVOKE_CLIENT(event, obj, ...)     (obj)->invoke (EVENT_ ## CLIENT     ## _ ## event, ## __VA_ARGS__, DT_END)
#define INVOKE_PLAYER(event, obj, ...)     (obj)->invoke (EVENT_ ## PLAYER     ## _ ## event, ## __VA_ARGS__, DT_END)
#define INVOKE_MAP(event, obj, ...)        (obj)->invoke (EVENT_ ## MAP        ## _ ## event, ## __VA_ARGS__, DT_END)

//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);

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

struct attachable
{
  static MGVTBL vtbl;

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

  enum {
    F_DESTROYED = 0x01,
    F_BORROWED  = 0x02,
  };

  // object is delete'd after the refcount reaches 0
  mutable int refcnt;
  int flags;

  void refcnt_inc () const { ++refcnt; }
  void refcnt_dec () const { --refcnt; }

  // check wether the object has died and destroy
  void refcnt_chk () { if (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.
  void destroy ();

  // return wether an object was destroyed already
  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

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

  void optimise ();  // possibly save some memory by destroying unneeded data

  attachable ()
  : flags (0), refcnt (0), self (0), cb (0), attach (0)
  {
  }

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

  virtual ~attachable ();

  attachable &operator =(const attachable &src);

  bool invoke (event_type event, ...);
  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 ();
};

// 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;

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

struct object_freezer : dynbuf
{
  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 (v)
      add (' '), add (v);

    add ('\n');
  }

  //TODO//temporary, used only for saving body locations
  void put (const char *k, int v)
  {
    add (k);
    add (' ');
    add (sint32 (v));
    add ('\n');
  }

  template<typename T>
  void put_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 (v)
      {
        *p++ = ' ';  vlen--;
        memcpy (p, v, vlen); p += vlen;
      }

    *p = '\n';
  }

  void put (keyword k, const char *v)
  {
    put_string (k, v);
  }

  void put (keyword k, const shstr &v)
  {
    put_string (k, v);
  }

  void put (keyword k, double v)
  {
    char buf [128];

    snprintf (buf, 128, "%.7g", v);

    put (k, (const char *)buf);
  }

  void put_(keyword k, sint64 v)
  {
    add (keyword_str [k], keyword_len [k]);
    add (' ');
    add (v);
    add ('\n');
  }

  void put_(keyword k, sint32 v)
  {
    add (keyword_str [k], keyword_len [k]);
    add (' ');
    add (v);
    add ('\n');
  }

  void put (keyword kbeg, keyword kend, const shstr &v)
  {
    add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');

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

    add (keyword_str [kend], keyword_len [kend]); add ('\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); }

  template<typename T>
  void put (keyword k, const T *v)
  {
    if (v)
      put (k, v->name);
    else
      put (k, (const char *)0);
  }

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

  bool save (const char *filename);
  char *as_string (); // like strdup

  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);

struct object_thawer
{
  SV *text; // text part
  AV *av;   // perl part
  char *line; // current beginning of line
  char *last_keyword, *last_value;

  operator bool () { return !!text; }

  object_thawer (const char *filename = 0);
  object_thawer (const char *data, AV *perlav);
  ~object_thawer ();

  void get (attachable *obj, int oid);

  keyword get_kv (); // also parse value for later use
  void skip_kv (keyword kw);

  const char *get_str () { return last_value; } // may be 0

  void get (shstr &sh) const;
  void get_ornull (shstr &sh) const { sh = last_value; }
  void get_ml (keyword kend, shstr &sh);

  sint32 get_sint32 () const;
  sint64 get_sint64 () const;
  double get_double () const;

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

  void get (bool   &i) { i = get_sint32 (); }
  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 (); }
};

char *fgets (char *s, int n, object_thawer &thawer);

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

struct coroapi {
  static struct CoroAPI *GCoroAPI;

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

struct watcher_base
{
  static struct EventAPI *GEventAPI;
};

template<class base>
struct watcher : watcher_base
{
  base *pe;

  void start   (bool repeat = false)        { GEventAPI->start   ((pe_watcher *)pe, repeat); }
  void stop    (bool cancel_events = false) { GEventAPI->stop    ((pe_watcher *)pe, cancel_events); }
  void now     ()                           { GEventAPI->now     ((pe_watcher *)pe); }
  void suspend ()                           { GEventAPI->suspend ((pe_watcher *)pe); }
  void resume  ()                           { GEventAPI->resume  ((pe_watcher *)pe); }

  void prio    (int new_prio)               { ((pe_watcher *)pe)->prio = new_prio; }

  ~watcher ()
  {
    cancel ();
  }

private:
  void cancel  ()                           { GEventAPI->cancel  ((pe_watcher *)pe); } // private
};

struct iw : watcher<pe_idle>, callback<void (iw &)>
{
  template<class O, class M>
  iw (O object, M method)
  : callback<void (iw &)> (object, method)
  {
    alloc ();
  }

private:
  void alloc ();
};

struct iow : watcher<pe_io>, callback<void (iow &, int)>
{
  template<class O, class M>
  iow (O object, M method)
  : callback<void (iow &, int)> (object, method)
  {
    alloc ();
  }

  void fd (int fd);
  int poll ();
  void poll (int events);

private:
  void alloc ();
};

#endif

Revision:	1.42
Committed:	Sat Dec 30 10:16:10 2006 UTC (17 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.41:	+48 -2 lines
Log Message:	preliminary snapshot check-in, DO NOT USE IN PRODUCTION SYSTEMS See the Changes file for details
#	User	Rev	Content
1	root	1.1	//
2			// cfperl.h perl interface
3			//
4	root	1.2	#ifndef CFPERL_H__
5			#define CFPERL_H__
6
7	root	1.16	#include <cstdio>
8
9			using namespace std;
10
11			#include <EXTERN.h>
12			#include <perl.h>
13	root	1.20	#include <XSUB.h>
14	root	1.16
15	root	1.36	#include <EventAPI.h>
16	root	1.42	#include <CoroAPI.h>
17	root	1.36
18	root	1.42	#include "util.h"
19			#include "keyword.h"
20			#include "dynbuf.h"
21	root	1.36	#include "callback.h"
22
23	root	1.42	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
24
25	root	1.16	// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
26			#undef localtime
27			#undef srand48
28			#undef drand48
29			#undef srandom
30			#undef readdir
31			#undef getprotobyname
32			#undef gethostbyname
33			#undef ctime
34			#undef strerror
35
36	root	1.39	// same here, massive symbol spamming
37			#undef do_open
38			#undef do_close
39	root	1.42	#undef ref
40	root	1.39
41	root	1.16	// perl bug #40256: perl does overwrite those with reentrant versions
42			// but does not initialise their state structures.
43			#undef random
44			#undef crypt
45
46	root	1.42	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
47
48			// some macros to simplify perl in-calls
49
50			// FUNCTION is, afaik, a gnu extension
51			#define CHECK_ERROR \
52			if (SvTRUE (ERRSV)) \
53			LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
54
55			#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
56			#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
57			#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
58			#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) \| G_EVAL); SPAGAIN;
59			#define CALL_END CHECK_ERROR; FREETMPS; LEAVE
60
61			//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
62
63	root	1.7	void cfperl_init ();
64			void cfperl_main ();
65
66	root	1.42	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
67
68			// virtual server time, excluding time jumps and lag
69			extern double runtime;
70
71	root	1.6	enum event_klass
72			{
73	root	1.11	KLASS_NONE,
74	root	1.3	KLASS_GLOBAL,
75	root	1.41	KLASS_ATTACHABLE,
76	root	1.40	KLASS_CLIENT,
77	root	1.3	KLASS_PLAYER,
78			KLASS_OBJECT,
79			KLASS_MAP,
80	root	1.33	KLASS_COMMAND,
81	root	1.3	};
82
83	root	1.6	enum event_type
84			{
85	root	1.7	# define def(klass,name) EVENT_ ## klass ## _ ## name,
86	root	1.2	# include "eventinc.h"
87			# undef def
88	root	1.4	NUM_EVENT_TYPES
89	root	1.2	};
90
91	root	1.41	#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
92			#define ARG_INT(v) DT_INT , static_cast<int> (v)
93			#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
94			#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
95			#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
96			#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
97			#define ARG_OBJECT(o) DT_OBJECT, (void )(static_cast<object > (o))
98			#define ARG_MAP(o) DT_MAP , (void )(static_cast<maptile > (o))
99			#define ARG_PLAYER(o) DT_PLAYER, (void )(static_cast<player > (o))
100			#define ARG_ARCH(o) DT_ARCH , (void )(static_cast<archetype > (o))
101			#define ARG_CLIENT(o) DT_CLIENT, (void )(static_cast<client > (o))
102			#define ARG_PARTY(o) DT_PARTY , (void )(static_cast<party > (o))
103			#define ARG_REGION(o) DT_REGION, (void )(static_cast<region > (o))
104	root	1.3
105			// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
106	root	1.2
107	root	1.4	// all these return true when the normal event processing should be skipped (if any)
108	root	1.41	#define INVOKE_GLOBAL(event, ...) gbl_ev.invoke (EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__, DT_END)
109			#define INVOKE_ATTACHABLE(event, obj, ...) (obj)->invoke (EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__, DT_END)
110			#define INVOKE_OBJECT(event, obj, ...) (obj)->invoke (EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__, DT_END)
111			#define INVOKE_CLIENT(event, obj, ...) (obj)->invoke (EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__, DT_END)
112			#define INVOKE_PLAYER(event, obj, ...) (obj)->invoke (EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__, DT_END)
113			#define INVOKE_MAP(event, obj, ...) (obj)->invoke (EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__, DT_END)
114	root	1.3
115	root	1.7	//TODO should index into @result
116			#define RESULT(idx,type) cfperl_result_ ## type (idx)
117	root	1.33	#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
118			#define RESULT_INT(idx) RESULT(idx, INT)
119	root	1.7
120	root	1.34	double cfperl_result_DOUBLE (int idx);
121			int cfperl_result_INT (int idx);
122	root	1.7
123	root	1.42	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
124
125	root	1.41	struct attachable
126	root	1.6	{
127	root	1.42	static MGVTBL vtbl;
128
129	root	1.41	static unordered_vector<attachable *> mortals;
130			static void check_mortals ();
131
132			enum {
133			F_DESTROYED = 0x01,
134			F_BORROWED = 0x02,
135			};
136
137			// object is delete'd after the refcount reaches 0
138			mutable int refcnt;
139			int flags;
140
141			void refcnt_inc () const { ++refcnt; }
142			void refcnt_dec () const { --refcnt; }
143
144			// check wether the object has died and destroy
145			void refcnt_chk () { if (refcnt <= 0) do_check (); }
146
147			// destroy the object unless it was already destroyed
148			// this politely asks everybody interested the reduce
149			// the refcount to 0 as soon as possible.
150			void destroy ();
151
152			// return wether an object was destroyed already
153			bool destroyed () const { return flags & F_DESTROYED; }
154
155			virtual void gather_callbacks (AV *&callbacks, event_type event) const;
156
157			#if 0
158			private:
159			static refcounted *rc_first;
160			refcounted *rc_next;
161			#endif
162
163			HV *self; // CF+ perl self
164	root	1.35	AV *cb; // CF+ callbacks
165	root	1.21	shstr attach; // generic extension attachment information
166	root	1.6
167	root	1.13	void optimise (); // possibly save some memory by destroying unneeded data
168	root	1.8
169	root	1.41	attachable ()
170			: flags (0), refcnt (0), self (0), cb (0), attach (0)
171	root	1.8	{
172			}
173	root	1.22
174	root	1.41	attachable (const attachable &src)
175			: flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
176	root	1.22	{
177			}
178
179	root	1.41	virtual ~attachable ();
180
181			attachable &operator =(const attachable &src);
182
183			bool invoke (event_type event, ...);
184			void instantiate ();
185			void reattach ();
186	root	1.24
187	root	1.41	protected:
188			// do the real refcount checking work
189			void do_check ();
190	root	1.25
191	root	1.41	// the method that does the real destroy work
192			virtual void do_destroy ();
193	root	1.6	};
194
195	root	1.41	// the global object is a pseudo object that cares for the global events
196			struct global : attachable
197	root	1.6	{
198	root	1.41	void gather_callbacks (AV *&callbacks, event_type event) const;
199	root	1.6	};
200
201	root	1.41	extern struct global gbl_ev;
202
203	root	1.42	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
204
205	root	1.19	struct object_freezer : dynbuf
206	root	1.7	{
207	root	1.17	AV *av;
208	root	1.12
209	root	1.17	object_freezer ();
210	root	1.8	~object_freezer ();
211
212	root	1.41	void put (attachable *ext);
213	root	1.15
214	root	1.29	// used only for user-defined key-value pairs
215			void put (const shstr &k, const shstr &v)
216	root	1.20	{
217			add (k);
218
219			if (v)
220	root	1.22	add (' '), add (v);
221	root	1.20
222			add ('\n');
223			}
224
225	root	1.29	//TODO//temporary, used only for saving body locations
226	root	1.20	void put (const char *k, int v)
227			{
228			add (k);
229			add (' ');
230			add (sint32 (v));
231			add ('\n');
232			}
233	root	1.19
234	root	1.29	template<typename T>
235			void put_string (keyword k, const T &v)
236	root	1.20	{
237			int klen = keyword_len [k];
238	root	1.22	int vlen = v ? strlen (v) + 1 : 0;
239
240			char p = (char )alloc (klen + vlen + 1);
241
242			memcpy (p, keyword_str [k], klen); p += klen;
243
244			if (v)
245			{
246	root	1.29	*p++ = ' '; vlen--;
247	root	1.22	memcpy (p, v, vlen); p += vlen;
248			}
249
250			*p = '\n';
251			}
252
253	root	1.29	void put (keyword k, const char *v)
254			{
255			put_string (k, v);
256			}
257
258	root	1.22	void put (keyword k, const shstr &v)
259			{
260	root	1.29	put_string (k, v);
261	root	1.20	}
262	root	1.19
263	root	1.20	void put (keyword k, double v)
264			{
265			char buf [128];
266
267			snprintf (buf, 128, "%.7g", v);
268
269			put (k, (const char *)buf);
270			}
271
272			void put_(keyword k, sint64 v)
273			{
274			add (keyword_str [k], keyword_len [k]);
275			add (' ');
276			add (v);
277			add ('\n');
278			}
279
280			void put_(keyword k, sint32 v)
281			{
282			add (keyword_str [k], keyword_len [k]);
283			add (' ');
284			add (v);
285			add ('\n');
286			}
287
288	root	1.23	void put (keyword kbeg, keyword kend, const shstr &v)
289	root	1.20	{
290			add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
291
292			if (v)
293			{
294			add (v);
295			add ('\n');
296			}
297
298			add (keyword_str [kend], keyword_len [kend]); add ('\n');
299			}
300
301			void put (keyword k, float v) { put (k, (double)v); }
302	root	1.19	void put (keyword k, signed char v) { put_(k, (sint32)v); }
303			void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
304			void put (keyword k, signed short v) { put_(k, (sint32)v); }
305			void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
306			void put (keyword k, signed int v) { put_(k, (sint32)v); }
307			void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
308			void put (keyword k, signed long v) { put_(k, (sint64)v); }
309			void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
310			void put (keyword k, signed long long v) { put_(k, (sint64)v); }
311			void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
312
313			template<typename T>
314	root	1.32	void put (keyword k, const T *v)
315	root	1.18	{
316	root	1.23	if (v)
317			put (k, v->name);
318			else
319			put (k, (const char *)0);
320	root	1.18	}
321
322	root	1.32	template<typename T>
323			void put (keyword k, const refptr<T> &v)
324			{
325			put (k, (T *)v);
326			}
327
328	root	1.17	bool save (const char *filename);
329	root	1.31	char *as_string (); // like strdup
330	root	1.17
331	root	1.16	operator bool () { return !!av; }
332	root	1.7	};
333
334	root	1.17	// compatibility support, should be removed when no longer needed
335			int fprintf (object_freezer &freezer, const char *format, ...);
336			int fputs (const char *s, object_freezer &freezer);
337
338			struct object_thawer
339	root	1.7	{
340	root	1.21	SV *text; // text part
341			AV *av; // perl part
342			char *line; // current beginning of line
343	root	1.42	char last_keyword, last_value;
344	root	1.21
345			operator bool () { return !!text; }
346	root	1.16
347	root	1.14	object_thawer (const char *filename = 0);
348	root	1.30	object_thawer (const char data, AV perlav);
349	root	1.8	~object_thawer ();
350
351	root	1.41	void get (attachable *obj, int oid);
352	root	1.15
353	root	1.21	keyword get_kv (); // also parse value for later use
354	root	1.42	void skip_kv (keyword kw);
355	root	1.21
356			const char *get_str () { return last_value; } // may be 0
357	root	1.17
358	root	1.21	void get (shstr &sh) const;
359			void get_ornull (shstr &sh) const { sh = last_value; }
360			void get_ml (keyword kend, shstr &sh);
361
362			sint32 get_sint32 () const;
363			sint64 get_sint64 () const;
364			double get_double () const;
365
366	root	1.42	void get (float &v) { v = get_double (); }
367	root	1.21	void get (double &v) { v = get_double (); }
368
369	root	1.42	void get (bool &i) { i = get_sint32 (); }
370	root	1.21	void get (sint8 &i) { i = get_sint32 (); }
371			void get (uint8 &i) { i = get_sint32 (); }
372			void get (sint16 &i) { i = get_sint32 (); }
373			void get (uint16 &i) { i = get_sint32 (); }
374			void get (sint32 &i) { i = get_sint32 (); }
375
376			void get (uint32 &i) { i = get_sint64 (); }
377			void get (sint64 &i) { i = get_sint64 (); }
378	root	1.7	};
379	root	1.2
380	root	1.21	char fgets (char s, int n, object_thawer &thawer);
381
382	root	1.42	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
383
384			struct coroapi {
385			static struct CoroAPI *GCoroAPI;
386
387			static int nready () { return CORO_NREADY; }
388			static int cede () { return CORO_CEDE ; }
389			};
390
391	root	1.36	struct watcher_base
392			{
393			static struct EventAPI *GEventAPI;
394			};
395
396			template<class base>
397			struct watcher : watcher_base
398			{
399			base *pe;
400
401			void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
402			void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
403			void now () { GEventAPI->now ((pe_watcher *)pe); }
404			void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
405			void resume () { GEventAPI->resume ((pe_watcher *)pe); }
406
407			void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
408
409			~watcher ()
410			{
411			cancel ();
412			}
413
414			private:
415			void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
416			};
417
418	root	1.38	struct iw : watcher<pe_idle>, callback<void (iw &)>
419			{
420			template<class O, class M>
421			iw (O object, M method)
422			: callback<void (iw &)> (object, method)
423			{
424			alloc ();
425			}
426
427			private:
428			void alloc ();
429			};
430
431	root	1.36	struct iow : watcher<pe_io>, callback<void (iow &, int)>
432			{
433			template<class O, class M>
434			iow (O object, M method)
435			: callback<void (iow &, int)> (object, method)
436			{
437			alloc ();
438			}
439
440	root	1.38	void fd (int fd);
441	root	1.36	int poll ();
442	root	1.38	void poll (int events);
443	root	1.36
444			private:
445			void alloc ();
446			};
447
448	root	1.2	#endif
449	root	1.3