--- deliantra/server/common/shstr.C 2006/09/12 00:26:16 1.15
+++ deliantra/server/common/shstr.C 2008/04/11 21:09:52 1.29
@@ -1,3 +1,23 @@
+/*
+ * 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
@@ -5,31 +25,25 @@
#include
#include
-
#include
-
#include
-#include "shstr.h"
-#include "util.h"
+#include "global.h"
+
+size_t shstr_alloc;
-typedef
-std::tr1::unordered_set < const char *,
- str_hash,
- str_equal >
- HT;
+typedef std::tr1::unordered_set , true> HT;
-static HT
- ht;
+static HT ht;
+static int next_gc;
static const char *
makevec (const char *s)
{
- int
- len = strlen (s);
+ int len = strlen (s);
- const char *
- v = (const char *) (2 + (int *) g_slice_alloc (sizeof (int) * 2 + len + 1));
+ shstr_alloc += sizeof (int) * 2 + len + 1;
+ const char *v = (const char *) (2 + (int *)g_slice_alloc (sizeof (int) * 2 + len + 1));
shstr::length (v) = len;
shstr::refcnt (v) = 1;
@@ -39,13 +53,15 @@
return v;
}
-const char *
- shstr::null = makevec ("");
-
-// what weird misoptimisation is this again?
-const shstr undead_name ("undead");
+static const char *
+makenull ()
+{
+ const char *s = makevec ("(null)");
+ shstr::length (s) = 0;
+ return s;
+}
-shstr skill_names[NUM_SKILLS];
+const char *shstr::null = makenull ();
const char *
shstr::find (const char *s)
@@ -53,7 +69,7 @@
if (!s)
return s;
- HT::iterator i = ht.find (s);
+ auto (i, ht.find (s));
return i != ht.end ()? *i : 0;
}
@@ -70,6 +86,7 @@
return found;
}
+ --next_gc;
s = makevec (s);
ht.insert (s);
return s;
@@ -80,18 +97,18 @@
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 (;;)
{
@@ -104,12 +121,13 @@
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));
+ shstr_alloc -= sizeof (int) * 2 + length (s) + 1;
g_slice_free1 (sizeof (int) * 2 + length (s) + 1, -2 + (int *) s);
}
else
@@ -119,12 +137,18 @@
curpos = *i;
}
+// 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
buf_overflow (const char *buf1, const char *buf2, int bufsize)
{
@@ -132,9 +156,12 @@
if (buf1)
len1 = strlen (buf1);
+
if (buf2)
len2 = strlen (buf2);
+
if ((len1 + len2) >= bufsize)
return 1;
+
return 0;
}