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/*****************************************************************************/ |
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/* CrossFire, A roguelike realtime multiplayer game */ |
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/*****************************************************************************/ |
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|
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/* |
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* This code is placed under the GNU General Public Licence (GPL) |
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* |
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* Copyright (C) 2006 by Marc Lehmann <crossfire@schmorp.de> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your 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 GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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#include "logger.h" |
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#include "cfperl.h" |
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#include "kw_hash.h" |
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|
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object_freezer::object_freezer () |
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: dynbuf (128 * 1024, 64 * 1024) |
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{ |
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av = newAV (); |
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} |
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|
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object_freezer::~object_freezer () |
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{ |
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SvREFCNT_dec (av); |
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} |
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|
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void object_freezer::put (attachable *ext) |
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{ |
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ext->optimise (); |
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|
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if (ext->self) |
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{ |
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int idx = AvFILLp ((AV *)av) + 1; |
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av_store (av, idx, newRV_inc ((SV *)ext->self)); |
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|
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add ((void *)"oid ", 4); |
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add ((sint32)idx); |
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add ('\n'); |
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} |
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} |
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|
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bool object_freezer::save (const char *filename) |
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{ |
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CALL_BEGIN (3); |
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CALL_ARG_SV (newSVpv (filename, 0)); |
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CALL_ARG_SV (newRV_noinc (newSVpvn ((char *)linearise (), size ()))); |
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CALL_ARG_SV (newRV_inc ((SV *)av)); |
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CALL_CALL ("cf::object_freezer_save", G_VOID | G_DISCARD); |
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CALL_END; |
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} |
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|
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char *object_freezer::as_string () |
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{ |
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CALL_BEGIN (2); |
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CALL_ARG_SV (newRV_noinc (newSVpvn ((char *)linearise (), size ()))); |
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CALL_ARG_SV (newRV_inc ((SV *)av)); |
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CALL_CALL ("cf::object_freezer_as_string", G_SCALAR); |
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|
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char *res = count > 0 |
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? strdup (SvPVbyte_nolen (POPs)) |
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: strdup ("[fatal error]"); |
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|
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CALL_END; |
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|
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return res; |
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} |
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|
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int fprintf (object_freezer &freezer, const char *format, ...) |
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{ |
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va_list ap; |
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|
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va_start (ap, format); |
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|
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int len = vsnprintf ((char *)freezer.force (1024), 1024, format, ap); |
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|
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if (len >= 0) |
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freezer.alloc (len); |
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|
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va_end (ap); |
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} |
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|
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int fputs (const char *s, object_freezer &freezer) |
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{ |
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freezer.add (s); |
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} |
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|
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static const char thawer_eof[] = "\n\n\n\0\0\0"; |
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|
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object_thawer::object_thawer (const char *filename) |
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{ |
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static const char eof[] = "\n\n\n\0\0\0"; |
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|
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av = 0; |
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text = 0; |
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line = 0; |
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|
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if (filename) |
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{ |
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CALL_BEGIN (1); |
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CALL_ARG_SV (newSVpv (filename, 0)); |
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CALL_CALL ("cf::object_thawer_load", G_ARRAY); |
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|
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if (count == 2) |
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{ |
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// second value - perl objects |
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{ |
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SV *sv = POPs; |
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if (SvROK (sv)) |
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av = (AV *)SvREFCNT_inc (SvRV (sv)); |
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} |
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|
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// first value - text part, pad with 3 zeroes |
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{ |
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SV *sv = POPs; |
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STRLEN len; |
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char *sv_ = SvPVbyte (sv, len); |
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text = newSV (len + sizeof (eof)); |
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SvCUR_set (text, len); |
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memcpy (SvPVX (text), sv_, len); |
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memcpy (SvEND (text), eof, sizeof (eof)); // just to be sure |
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|
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line = SvPVX (text); |
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} |
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} |
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|
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CALL_END; |
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} |
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} |
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|
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object_thawer::object_thawer (const char *data, AV *perlav) |
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{ |
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av = perlav; |
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text = newSVpv (data, 0); |
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sv_catpv (text, thawer_eof); |
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line = SvPVbyte_nolen (text); |
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} |
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|
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void object_thawer::get (attachable *obj, int oid) |
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{ |
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if (!av || oid < 0) // this is actually an error of sorts |
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return; |
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|
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SV **svp = av_fetch ((AV *)av, oid, 0); |
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|
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if (!svp || !SvROK (*svp)) |
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{ |
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printf ("trying to thaw duplicate or never-issued oid %d, ignoring.\n", oid); |
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return; |
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} |
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|
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if (!SvROK (*svp)) |
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{ |
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LOG (llevError, "deserialised perl object is not an RV"); |
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return; |
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} |
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|
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HV *hv = (HV *)SvRV (*svp); |
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|
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if (SvTYPE (hv) != SVt_PVHV) |
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{ |
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LOG (llevError, "deserialised perl object is not a PVHV"); |
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return; |
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} |
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|
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if (obj->self) |
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{ |
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// the hard way(?) |
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|
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// the dirty blues: "just" swap the XPVHV's |
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swap (SvANY (obj->self), SvANY (hv)); |
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|
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// do not swap magic, though |
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swap (SvMAGIC (obj->self), SvMAGIC (hv)); |
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} |
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else |
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{ |
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// the easy way(?) |
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|
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obj->self = hv; |
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SvRV_set (*svp, &PL_sv_undef); |
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|
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sv_magicext ((SV *)obj->self, 0, PERL_MAGIC_ext, &attachable::vtbl, (char *)obj, 0); |
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|
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// borrow a refcount for the perl object |
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obj->flags |= attachable::F_BORROWED; |
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obj->refcnt_dec (); |
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} |
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|
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obj->reattach (); |
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} |
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|
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object_thawer::~object_thawer () |
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{ |
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if (text) SvREFCNT_dec (text); |
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if (av) SvREFCNT_dec (av); |
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} |
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|
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char *fgets (char *s, int n, object_thawer &thawer) |
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{ |
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char *p = thawer.line; |
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char *q = s; |
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|
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if (!p) |
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return 0; |
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|
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while (--n) |
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{ |
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if (!*p) |
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break; |
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|
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*q++ = *p; |
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|
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if (*p++ == '\n') |
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break; |
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} |
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|
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*q = 0; |
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thawer.line = p; |
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|
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return s == q ? 0 : s; |
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} |
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|
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keyword object_thawer::get_kv () |
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{ |
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if (!line) |
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return KW_EOF; |
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|
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for (;;) |
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{ |
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char *p = line; |
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|
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if (!*p) |
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return KW_EOF; |
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|
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// parse keyword |
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while (*p > ' ') |
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p++; |
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|
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int klen = p - line; |
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|
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if (*p++ != '\n') |
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{ |
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// parse value |
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while (*(unsigned char *)p <= ' ' && *p != '\n') // skip 0x01 .. 0x20 |
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++p; |
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|
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last_value = p; |
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|
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while (*p != '\n') |
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p++; |
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|
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*p++ = 0; |
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} |
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else |
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last_value = 0; |
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|
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line [klen] = 0; |
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keyword_idx *kw = kw_lex::match (line, klen); |
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|
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//printf ("KV %d<%s,%s>\n", kw ? kw->index : 0, line, last_value);//D |
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|
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last_keyword = line; |
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line = p; |
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|
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if (kw) |
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return kw->index; |
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else if (!*last_keyword || *last_keyword == '#') |
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; // empty/comment line |
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else |
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return KW_ERROR; |
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} |
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} |
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|
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void object_thawer::skip_kv (keyword kw) |
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{ |
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shstr ml; |
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|
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switch (kw) |
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{ |
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case KW_msg: get_ml (KW_endmsg , ml); break; |
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case KW_lore: get_ml (KW_endlore , ml); break; |
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case KW_maplore: get_ml (KW_endmaplore, ml); break; |
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} |
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} |
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|
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void object_thawer::get (shstr &sh) const |
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{ |
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if (last_value) |
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sh = last_value; |
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else |
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{ |
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sh = "<value missing>"; |
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LOG (llevError, "keyword requires value: <%.320s>\n", line);//TODO: add filename |
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} |
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} |
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|
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void object_thawer::get_ml (keyword kend, shstr &sh) |
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{ |
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char kw[128]; |
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|
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int klen = keyword_len [kend]; |
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|
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kw [0] = '\n'; |
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memcpy (kw + 1, keyword_str [kend], klen); |
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kw [klen + 1] = '\n'; |
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kw [klen + 2] = 0; |
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|
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// first test for completely empty msg... "endXXX\n" |
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if (!strncmp (line, kw + 1, klen + 1)) |
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{ |
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sh = 0; |
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|
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line += klen + 1; |
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|
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return; |
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} |
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else |
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{ |
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// multi-line strings are delimited by "\nendXXX\n" or "endXXX\n" (NULL) |
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|
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char *end = strstr (line, kw); |
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|
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if (!end) |
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{ |
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sh = 0; |
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return; |
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} |
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|
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*end = 0; |
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sh = line; |
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|
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line = end + keyword_len [kend] + 1; |
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|
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while (*line++ != '\n') |
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; |
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} |
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} |
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|
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sint32 object_thawer::get_sint32 () const |
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{ |
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char *p = last_value; |
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|
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if (!p) |
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return 0; |
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|
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sint32 val = 0; |
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bool negate; |
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|
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if (*p == '-') |
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{ |
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negate = true; |
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++p; |
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} |
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else |
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negate = false; |
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|
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do |
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{ |
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val *= 10; |
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val += *p++ - '0'; |
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} |
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while (*p); |
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|
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return negate ? -val : val; |
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} |
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|
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sint64 object_thawer::get_sint64 () const |
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{ |
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return last_value ? atoll (last_value) : 0; |
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} |
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|
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double object_thawer::get_double () const |
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{ |
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return last_value ? atof (last_value) : 0; |
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} |
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|
