/*
- * $Id$
- *
- * DEBUG: section 20 Swap Dir base object
- * AUTHOR: Robert Collins
- *
- * SQUID Web Proxy Cache http://www.squid-cache.org/
- * ----------------------------------------------------------
- *
- * Squid is the result of efforts by numerous individuals from
- * the Internet community; see the CONTRIBUTORS file for full
- * details. Many organizations have provided support for Squid's
- * development; see the SPONSORS file for full details. Squid is
- * Copyrighted (C) 2001 by the Regents of the University of
- * California; see the COPYRIGHT file for full details. Squid
- * incorporates software developed and/or copyrighted by other
- * sources; see the CREDITS file for full details.
- *
- * This program 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 2 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
+ * Copyright (C) 1996-2015 The Squid Software Foundation and contributors
*
+ * Squid software is distributed under GPLv2+ license and includes
+ * contributions from numerous individuals and organizations.
+ * Please see the COPYING and CONTRIBUTORS files for details.
*/
+/* DEBUG: section 20 Swap Dir base object */
+
#include "squid.h"
#include "cache_cf.h"
#include "compat/strtoll.h"
#include "ConfigOption.h"
+#include "ConfigParser.h"
+#include "globals.h"
#include "Parsing.h"
-#include "protos.h"
+#include "SquidConfig.h"
#include "StoreFileSystem.h"
#include "SwapDir.h"
+#include "tools.h"
SwapDir::SwapDir(char const *aType): theType(aType),
- max_size(0),
- path(NULL), index(-1), disker(-1), min_objsize(0), max_objsize (-1),
- repl(NULL), removals(0), scanned(0),
- cleanLog(NULL)
+ max_size(0), min_objsize(0), max_objsize (-1),
+ path(NULL), index(-1), disker(-1),
+ repl(NULL), removals(0), scanned(0),
+ cleanLog(NULL)
{
fs.blksize = 1024;
}
return ((maxSize() * Config.Swap.lowWaterMark) / 100);
}
+int64_t
+SwapDir::maxObjectSize() const
+{
+ // per-store max-size=N value is authoritative
+ if (max_objsize > -1)
+ return max_objsize;
+
+ // store with no individual max limit is limited by configured maximum_object_size
+ // or the total store size, whichever is smaller
+ return min(static_cast<int64_t>(maxSize()), Config.Store.maxObjectSize);
+}
+
+void
+SwapDir::maxObjectSize(int64_t newMax)
+{
+ // negative values mean no limit (-1)
+ if (newMax < 0) {
+ max_objsize = -1; // set explicitly in case it had a non-default value previously
+ return;
+ }
+
+ // prohibit values greater than total storage area size
+ // but set max_objsize to the maximum allowed to override maximum_object_size global config
+ if (static_cast<uint64_t>(newMax) > maxSize()) {
+ debugs(47, DBG_PARSE_NOTE(2), "WARNING: Ignoring 'max-size' option for " << path <<
+ " which is larger than total cache_dir size of " << maxSize() << " bytes.");
+ max_objsize = maxSize();
+ return;
+ }
+
+ max_objsize = newMax;
+}
+
void
SwapDir::reference(StoreEntry &) {}
bool
-SwapDir::dereference(StoreEntry &)
+SwapDir::dereference(StoreEntry &, bool)
{
return true; // keep in global store_table
}
return true; // kids may provide more tests and should report true load
}
-
void
SwapDir::sync() {}
SwapDir::writeCleanDone() {}
void
-SwapDir::logEntry(const StoreEntry & e, int op) const {}
+SwapDir::logEntry(const StoreEntry &, int) const {}
char const *
SwapDir::type() const
void
SwapDir::parseOptions(int isaReconfig)
{
- unsigned int old_read_only = flags.read_only;
+ const bool old_read_only = flags.read_only;
char *name, *value;
ConfigOption *newOption = getOptionTree();
- while ((name = strtok(NULL, w_space)) != NULL) {
+ while ((name = ConfigParser::NextToken()) != NULL) {
value = strchr(name, '=');
if (value) {
- *value = '\0'; /* cut on = */
+ *value = '\0'; /* cut on = */
++value;
}
}
bool
-SwapDir::optionReadOnlyParse(char const *option, const char *value, int isaReconfig)
+SwapDir::optionReadOnlyParse(char const *option, const char *value, int)
{
if (strcmp(option, "no-store") != 0 && strcmp(option, "read-only") != 0)
return false;
- int read_only = 0;
+ if (strcmp(option, "read-only") == 0) {
+ debugs(3, DBG_PARSE_NOTE(3), "UPGRADE WARNING: Replace cache_dir option 'read-only' with 'no-store'.");
+ }
+
+ bool read_only = 0;
if (value)
- read_only = xatoi(value);
+ read_only = (xatoi(value) != 0);
else
- read_only = 1;
+ read_only = true;
flags.read_only = read_only;
// some SwapDirs may maintain their indexes and be able to lookup an entry key
StoreEntry *
-SwapDir::get(const cache_key *key)
+SwapDir::get(const cache_key *)
{
return NULL;
}
void
-SwapDir::get(String const key, STOREGETCLIENT aCallback, void *aCallbackData)
+SwapDir::get(String const, STOREGETCLIENT, void *)
{
fatal("not implemented");
}
+