--- deliantra/server/common/shstr.C 2006/09/12 00:26:16 1.15
+++ deliantra/server/common/shstr.C 2011/04/23 04:56:46 1.46
@@ -1,3 +1,24 @@
+/*
+ * This file is part of Deliantra, the Roguelike Realtime MMORPG.
+ *
+ * Copyright (©) 2005,2006,2007,2008,2009,2010,2011 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
+ * .
+ *
+ * The authors can be reached via e-mail to
+ */
/*
* shstr.C
@@ -5,47 +26,49 @@
#include
#include
-
#include
-
#include
-#include "shstr.h"
-#include "util.h"
+#include "global.h"
-typedef
-std::tr1::unordered_set < const char *,
- str_hash,
- str_equal >
- HT;
+size_t shstr_alloc;
-static HT
- ht;
+typedef std::tr1::unordered_set > HT;
+
+static HT ht;
+static int next_gc;
+
+#define NUM_INT 3
static const char *
makevec (const char *s)
{
- int
- len = strlen (s);
+ int len = strlen (s);
+ int alloc = sizeof (uint32_t) * NUM_INT + len + 1;
- const char *
- v = (const char *) (2 + (int *) g_slice_alloc (sizeof (int) * 2 + len + 1));
+ shstr_alloc += alloc;
+ char *v = (char *)g_slice_alloc (alloc);
+ v += sizeof (uint32_t) * NUM_INT;
+ shstr::hash (v) = strhsh (s);
shstr::length (v) = len;
shstr::refcnt (v) = 1;
- memcpy ((char *) v, s, len + 1);
+ memcpy (v, s, len + 1);
return v;
}
-const char *
- shstr::null = makevec ("");
-
-// what weird misoptimisation is this again?
-const shstr undead_name ("undead");
+shstr_vec shstr_tmp::nullvec = { STRHSH_NULL, 0, 0xffffffff, "(null)" };
-shstr skill_names[NUM_SKILLS];
+bool
+shstr_tmp::contains (const char *substring) const
+{
+ //TODO: this is supposed to check for comma-seperation...
+ return s != null ()
+ && substring
+ && strstr (s, substring);
+}
const char *
shstr::find (const char *s)
@@ -53,7 +76,7 @@
if (!s)
return s;
- HT::iterator i = ht.find (s);
+ auto (i, ht.find (s));
return i != ht.end ()? *i : 0;
}
@@ -62,7 +85,7 @@
shstr::intern (const char *s)
{
if (!s)
- return null;
+ return null ();
if (const char *found = find (s))
{
@@ -70,6 +93,7 @@
return found;
}
+ --next_gc;
s = makevec (s);
ht.insert (s);
return s;
@@ -80,18 +104,18 @@
void
shstr::gc ()
{
-return; //D
-//D currently disabled: some datastructures might still store them
-//D but their pointers will become invalidated
+ 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 (;;)
{
@@ -104,13 +128,15 @@
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));
- g_slice_free1 (sizeof (int) * 2 + length (s) + 1, -2 + (int *) s);
+ int alloc = sizeof (uint32_t) * NUM_INT + length (s) + 1;
+ shstr_alloc -= alloc;
+ g_slice_free1 (alloc, (void *)(s - sizeof (uint32_t) * NUM_INT));
}
else
++i;
@@ -119,22 +145,12 @@
curpos = *i;
}
-//TODO: this should of course not be here
+// declare these here to get correct initialisation order
+#define def2(id,str) const shstr id (str);
+#define def(id) def2(shstr_ ## id, # id)
+# include "shstrinc.h"
+#undef def
+#undef def2
-/* buf_overflow() - we don't want to exceed the buffer size of
- * buf1 by adding on buf2! Returns true if overflow will occur.
- */
+materialtype_t material_null;
-int
-buf_overflow (const char *buf1, const char *buf2, int bufsize)
-{
- int len1 = 0, len2 = 0;
-
- if (buf1)
- len1 = strlen (buf1);
- if (buf2)
- len2 = strlen (buf2);
- if ((len1 + len2) >= bufsize)
- return 1;
- return 0;
-}