1 files changed, 126 insertions, 0 deletions
diff --git a/xlators/features/bit-rot/src/bitd/bit-rot.h b/xlators/features/bit-rot/src/bitd/bit-rot.h
new file mode 100644
index 00000000000..ab9fd806232
--- /dev/null
+++ b/xlators/features/bit-rot/src/bitd/bit-rot.h
@@ -0,0 +1,126 @@
+/*
+   Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com>
+   This file is part of GlusterFS.
+
+   This file is licensed to you under your choice of the GNU Lesser
+   General Public License, version 3 or any later version (LGPLv3 or
+   later), or the GNU General Public License, version 2 (GPLv2), in all
+   cases as published by the Free Software Foundation.
+*/
+#ifndef __BIT_ROT_H__
+#define __BIT_ROT_H__
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "glusterfs.h"
+#include "logging.h"
+#include "dict.h"
+#include "xlator.h"
+#include "defaults.h"
+#include "syncop.h"
+#include "syncop-utils.h"
+#include "changelog.h"
+#include "timer-wheel.h"
+
+#include "bit-rot-common.h"
+#include "bit-rot-stub-mem-types.h"
+
+#include <openssl/sha.h>
+
+/* TODO: make this configurable */
+#define BR_WORKERS 8
+
+#define signature_size(hl) (sizeof (br_isignature_t) + hl + 1)
+
+struct br_child {
+        char child_up;                /* Indicates whether this child is
+                                         up or not */
+        xlator_t *xl;                 /* client xlator corresponding to
+                                         this child */
+        inode_table_t *table;         /* inode table for this child */
+        char brick_path[PATH_MAX];    /* brick export directory of this
+                                         child */
+        struct list_head list;        /* hook to attach to the list of
+                                         UP children */
+        xlator_t *this;               /* Bit rot xlator */
+
+        pthread_t thread;             /* initial crawler for unsigned
+                                         object(s) */
+        int threadrunning;            /* active thread */
+
+        struct mem_pool *timer_pool;  /* timer-wheel's timer mem-pool */
+
+        struct timeval tv;
+};
+
+typedef struct br_child br_child_t;
+
+struct br_obj_n_workers {
+        struct list_head objects;         /* queue of objects expired from the
+                                             timer wheel and ready to be picked
+                                             up for signing */
+        pthread_t workers[BR_WORKERS];    /* Threads which pick up the objects
+                                             from the above queue and start
+                                             signing each object */
+};
+
+typedef struct br_obj_n_workers br_obj_n_workers_t;
+
+struct br_private {
+        pthread_mutex_t lock;
+
+        struct list_head bricks;          /* list of bricks from which CHILD_UP
+                                             has been received */
+
+        pthread_cond_t cond;              /* handling CHILD_UP notifications */
+        pthread_cond_t object_cond;       /* handling signing of objects */
+        int child_count;
+        br_child_t *children;             /* list of subvolumes */
+        int up_children;
+        pthread_t thread;                 /* thread for connecting each UP
+                                             child with changelog */
+        struct tvec_base *timer_wheel;    /* timer wheel where the objects which
+                                             changelog has sent sits and waits
+                                             for expiry */
+        br_obj_n_workers_t *obj_queue;    /* place holder for all the objects
+                                             that are expired from timer wheel
+                                             and ready to be picked up for
+                                             signing and the workers which sign
+                                             the objects */
+        int32_t expiry_time;              /* objects "wait" time */
+};
+
+typedef struct br_private br_private_t;
+
+struct br_object {
+        xlator_t *this;
+
+        uuid_t gfid;
+
+        unsigned long signedversion;    /* version aginst which this object will
+                                           be signed */
+        br_child_t *child;              /* object's subvolume */
+
+        struct list_head list;          /* hook to add to the queue once the
+                                           object is expired from timer wheel */
+        void *data;
+};
+
+typedef struct br_object br_object_t;
+
+void
+br_log_object (xlator_t *, char *, uuid_t, int32_t);
+
+void
+br_log_object_path (xlator_t *, char *, const char *, int32_t);
+
+int32_t
+br_object_checksum (unsigned char *, br_object_t *, fd_t *, struct iatt *);
+
+int32_t
+br_prepare_loc (xlator_t *, br_child_t *, loc_t *, gf_dirent_t *, loc_t *);
+
+#endif /* __BIT_ROT_H__ */