-
/*
- * $Id: DiskdIOStrategy.h,v 1.4 2007/08/16 23:32:28 hno Exp $
+ * $Id$
*
* DEBUG: section 79 Squid-side DISKD I/O functions.
* AUTHOR: Duane Wessels
* 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.
#ifndef __STORE_DISKDIOSTRATEGY_H__
#define __STORE_DISKDIOSTRATEGY_H__
-/*
- * magic2 is the point at which we start blocking on msgsnd/msgrcv.
- * If a queue has magic2 (or more) messages away, then we read the
- * queue until the level falls below magic2. Recommended value
- * is 75% of SHMBUFS. magic1 is the number of messages away which we
- * stop allowing open/create for.
- */
-
struct diomsg;
+/// \ingroup diskd
class SharedMemory
{
class ReadRequest;
+/// \ingroup diskd
class DiskdIOStrategy : public DiskIOStrategy
{
virtual void sync();
virtual int callback();
virtual void statfs(StoreEntry & sentry)const;
- int send(int mtype, int id, DiskdFile *theFile, size_t size, off_t offset, ssize_t shm_offset, RefCountable_ *);
- /* public for accessing return address's */
+ int send(int mtype, int id, DiskdFile *theFile, size_t size, off_t offset, ssize_t shm_offset, RefCountable_ *requestor);
+
+ /** public for accessing return address's */
SharedMemory shm;
private:
int SEND(diomsg * M, int mtype, int id, size_t size, off_t offset, ssize_t shm_offset);
void handle(diomsg * M);
void unlinkDone(diomsg * M);
+
+ /**
+ * magic1 is the number of messages away which we
+ * stop allowing open/create for.
+ */
int magic1;
+
+ /**
+ * magic2 is the point at which we start blocking on msgsnd/msgrcv.
+ * If a queue has magic2 (or more) messages away, then we read the
+ * queue until the level falls below magic2. Recommended value
+ * is 75% of SHMBUFS.
+ */
int magic2;
+
int away;
int smsgid;
int rmsgid;
size_t instanceID;
};
+/// \ingroup diskd
#define SHMBUF_BLKSZ SM_PAGE_SIZE
-
-struct diskd_stats_t
-{
+/// \ingroup diskd
+struct diskd_stats_t {
int open_fail_queue_len;
int block_queue_len;
int max_away;
int recv_count;
int sio_id;
- struct
- {
+ struct {
int ops;
int success;
int fail;
open, create, close, unlink, read, write;
};
+/// \ingroup diskd
extern diskd_stats_t diskd_stats;
#endif