1 files changed, 114 insertions, 0 deletions
diff --git a/xlators/features/changelog/lib/src/gf-changelog-journal.h b/xlators/features/changelog/lib/src/gf-changelog-journal.h
new file mode 100644
index 00000000000..9a0f0b28956
--- /dev/null
+++ b/xlators/features/changelog/lib/src/gf-changelog-journal.h
@@ -0,0 +1,114 @@
+/*
+   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 __GF_CHANGELOG_JOURNAL_H
+#define __GF_CHANGELOG_JOURNAL_H
+
+#include <unistd.h>
+#include <pthread.h>
+
+#include "changelog.h"
+
+enum api_conn {
+        JNL_API_CONNECTED,
+        JNL_API_CONN_INPROGESS,
+        JNL_API_DISCONNECTED,
+};
+
+typedef struct gf_changelog_entry {
+        char path[PATH_MAX];
+
+        struct list_head list;
+} gf_changelog_entry_t;
+
+typedef struct gf_changelog_processor {
+        pthread_mutex_t  lock;     /* protects ->entries */
+        pthread_cond_t   cond;     /* waiter during empty list */
+        gf_boolean_t     waiting;
+
+        pthread_t processor;       /* thread-id of journal processing thread */
+
+        struct list_head entries;
+} gf_changelog_processor_t;
+
+typedef struct gf_changelog_journal {
+        DIR *jnl_dir;                       /* 'processing' directory stream */
+
+        int jnl_fd;                         /* fd to the tracker file */
+
+        char jnl_brickpath[PATH_MAX];       /* brick path for this end-point */
+
+        gf_changelog_processor_t *jnl_proc;
+
+        char *jnl_working_dir;              /* scratch directory */
+
+        char jnl_current_dir[PATH_MAX];
+        char jnl_processed_dir[PATH_MAX];
+        char jnl_processing_dir[PATH_MAX];
+
+        char rfc3986[256];                  /* RFC 3986 string encoding */
+
+        struct gf_changelog_journal *hist_jnl;
+        int hist_done;                      /* holds 0 done scanning,
+                                               1 keep scanning and -1 error */
+
+        pthread_spinlock_t lock;
+        int connected;
+} gf_changelog_journal_t;
+
+#define JNL_SET_API_STATE(jnl, state)  (jnl->connected = state)
+#define JNL_IS_API_DISCONNECTED(jnl)  (jnl->connected == JNL_API_DISCONNECTED)
+
+/* History API */
+typedef struct gf_changelog_history_data {
+        int           len;
+
+        int           htime_fd;
+
+        /* parallelism count */
+        int           n_parallel;
+
+        /* history from, to indexes */
+        unsigned long from;
+        unsigned long to;
+} gf_changelog_history_data_t;
+
+typedef struct gf_changelog_consume_data {
+        /** set of inputs */
+
+        /* fd to read from */
+        int             fd;
+
+        /* from @offset */
+        off_t           offset;
+
+        xlator_t       *this;
+
+        gf_changelog_journal_t *jnl;
+
+        /** set of outputs */
+
+        /* return value */
+        int retval;
+
+        /* journal processed */
+        char changelog[PATH_MAX];
+} gf_changelog_consume_data_t;
+
+/* event handler */
+CALLBACK gf_changelog_handle_journal;
+
+/* init, connect & disconnect handler */
+INIT gf_changelog_journal_init;
+FINI gf_changelog_journal_fini;
+CONNECT gf_changelog_journal_connect;
+DISCONNECT gf_changelog_journal_disconnect;
+
+#endif