--- deliantra/server/common/shstr.C 2006/09/04 17:16:19 1.9 +++ deliantra/server/common/shstr.C 2008/12/31 17:35:37 1.32 @@ -1,37 +1,68 @@ /* + * This file is part of Deliantra, the Roguelike Realtime MMORPG. + * + * Copyright (©) 2005,2006,2007,2008 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 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 . + * + * The authors can be reached via e-mail to + */ + +/* * shstr.C */ #include #include - +#include #include -#include "shstr.h" -#include "util.h" +#include "global.h" + +size_t shstr_alloc; -typedef std::tr1::unordered_set HT; +typedef std::tr1::unordered_set > HT; static HT ht; +static int next_gc; -static const char *makevec (const char *s) +static const char * +makevec (const char *s) { int len = strlen (s); - const char *v = (const char *)(2 + (int *)malloc (sizeof (int) * 2 + len + 1)); + shstr_alloc += sizeof (unsigned int) * 2 + len + 1; + const char *v = (const char *) (2 + (int *)g_slice_alloc (sizeof (unsigned int) * 2 + len + 1)); shstr::length (v) = len; shstr::refcnt (v) = 1; - memcpy ((char *)v, s, len + 1); + memcpy ((char *) v, s, len + 1); return v; } -const char *shstr::null = makevec (""); +static const char * +makenull () +{ + const char *s = makevec ("(null)"); + shstr_tmp::length (s) = 0; + //shstr ::refcnt (s) = 0xffffffff; // useful for debugging + return s; +} -// what weird misoptimisation is this again? -const shstr undead_name ("undead"); +const char *shstr_tmp::null = makenull (); const char * shstr::find (const char *s) @@ -39,11 +70,9 @@ if (!s) return s; - HT::iterator i = ht.find (s); + auto (i, ht.find (s)); - return i != ht.end () - ? *i - : 0; + return i != ht.end ()? *i : 0; } const char * @@ -58,6 +87,7 @@ return found; } + --next_gc; s = makevec (s); ht.insert (s); return s; @@ -68,15 +98,18 @@ void shstr::gc () { + if (expect_true (next_gc > 0)) + return; + static const char *curpos; - HT::iterator i = curpos ? ht.find (curpos) : ht.begin (); + auto (i, curpos ? ht.find (curpos) : ht.begin ()); if (i == ht.end ()) i = ht.begin (); - // go through all strings roughly once every 4 minutes int n = ht.size () / 256 + 16; + next_gc += n >> 1; for (;;) { @@ -89,12 +122,14 @@ break; else if (!refcnt (*i)) { - HT::iterator o = i++; + auto (o, i++); const char *s = *o; + ht.erase (o); //printf ("GC %4d %3d %d >%s<%d\n", (int)ht.size (), n, shstr::refcnt (s), s, shstr::length (s)); - free (-2 + (int *)s); + shstr_alloc -= sizeof (unsigned int) * 2 + length (s) + 1; + g_slice_free1 (sizeof (unsigned int) * 2 + length (s) + 1, -2 + (int *) s); } else ++i; @@ -103,22 +138,33 @@ curpos = *i; } +const shstr shstr_null; + +// declare these here to get correct initialisation order +#define def(str) const shstr shstr_ ## str (# str); +# include "shstrinc.h" +#undef def + +shstr skill_names[NUM_SKILLS]; + //TODO: this should of course not be here + /* buf_overflow() - we don't want to exceed the buffer size of * buf1 by adding on buf2! Returns true if overflow will occur. */ - -int +int buf_overflow (const char *buf1, const char *buf2, int bufsize) { - int len1 = 0, len2 = 0; + int len1 = 0, len2 = 0; - if (buf1) - len1 = strlen (buf1); - if (buf2) - len2 = strlen (buf2); - if ((len1 + len2) >= bufsize) - return 1; - return 0; -} + if (buf1) + len1 = strlen (buf1); + + if (buf2) + len2 = strlen (buf2); + if ((len1 + len2) >= bufsize) + return 1; + + return 0; +}