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authorShehjar Tikoo <shehjart@gluster.com>2009-06-25 14:31:27 +0000
committerAnand V. Avati <avati@dev.gluster.com>2009-06-29 10:42:04 -0700
commit76aa99422562a500c3b82cb826ce582576065a83 (patch)
tree65df73305affbe658fd8e70c8c4a2e7dbb26a8d4 /booster/src/booster-fd.h
parent4fd96085c5a029e7be9e24e0c33b13268b290d6b (diff)
booster: Add new booster-specific fd-table
The reason we need a booster specific fd-table is because the libglusterfs fd-table has come to a point where it is optimized for libglusterfs-style of fd allocations. This conflicts with the way booster requires fds to be allocated so this commit brings in a re-based version of a booster-specific fd-table written by Raghu. Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
Diffstat (limited to 'booster/src/booster-fd.h')
-rw-r--r--booster/src/booster-fd.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/booster/src/booster-fd.h b/booster/src/booster-fd.h
new file mode 100644
index 00000000000..43592e8255a
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+++ b/booster/src/booster-fd.h
@@ -0,0 +1,72 @@
+/*
+ Copyright (c) 2009 Z RESEARCH, Inc. <http://www.zresearch.com>
+ This file is part of GlusterFS.
+
+ GlusterFS 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.
+
+ GlusterFS 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
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _BOOSTER_FD_H
+#define _BOOSTER_FD_H
+
+#include <libglusterfsclient.h>
+#include <locking.h>
+#include <list.h>
+
+/* This struct must be updated if the fd_t in fd.h changes.
+ * We cannot include those headers here because unistd.h, included
+ * by glusterfs headers, conflicts with the syscall prototypes we
+ * define for booster.
+ */
+struct _fd {
+ pid_t pid;
+ int32_t flags;
+ int32_t refcount;
+ struct list_head inode_list;
+ struct _inode *inode;
+ struct _dict *ctx;
+ gf_lock_t lock; /* used ONLY for manipulating
+ 'struct _fd_ctx' array (_ctx).*/
+ struct _fd_ctx *_ctx;
+};
+typedef struct _fd fd_t;
+
+
+struct _booster_fdtable {
+ int refcount;
+ unsigned int max_fds;
+ gf_lock_t lock;
+ fd_t **fds;
+};
+typedef struct _booster_fdtable booster_fdtable_t;
+
+extern int
+booster_fd_unused_get (booster_fdtable_t *fdtable, fd_t *fdptr, int fd);
+
+extern void
+booster_fd_put (booster_fdtable_t *fdtable, int fd);
+
+extern fd_t *
+booster_fdptr_get (booster_fdtable_t *fdtable, int fd);
+
+extern void
+booster_fdptr_put (fd_t *fdptr);
+
+extern void
+booster_fdtable_destroy (booster_fdtable_t *fdtable);
+
+booster_fdtable_t *
+booster_fdtable_alloc (void);
+
+#endif /* #ifndef _BOOSTER_FD_H */