1 files changed, 92 insertions, 0 deletions
diff --git a/tools/glusterfind/src/libgfchangelog.py b/tools/glusterfind/src/libgfchangelog.py
new file mode 100644
index 00000000000..513bb101e93
--- /dev/null
+++ b/tools/glusterfind/src/libgfchangelog.py
@@ -0,0 +1,92 @@
+# -*- coding: utf-8 -*-
+
+# 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.
+
+import os
+from ctypes import CDLL, RTLD_GLOBAL, get_errno, create_string_buffer, c_ulong, byref
+from ctypes.util import find_library
+from gfind_py2py3 import bytearray_to_str, gf_create_string_buffer
+from gfind_py2py3 import gfind_history_changelog, gfind_changelog_register
+from gfind_py2py3 import gfind_history_changelog_done
+
+
+class ChangelogException(OSError):
+    pass
+
+libgfc = CDLL(find_library("gfchangelog"), mode=RTLD_GLOBAL, use_errno=True)
+
+
+def raise_oserr(prefix=None):
+    errn = get_errno()
+    prefix_or_empty = prefix + ": " if prefix else ""
+    raise ChangelogException(errn, prefix_or_empty + os.strerror(errn))
+
+
+def cl_init():
+    ret = libgfc.gf_changelog_init(None)
+    if ret == -1:
+        raise_oserr(prefix="gf_changelog_init")
+
+
+def cl_register(brick, path, log_file, log_level, retries=0):
+    ret = gfind_changelog_register(libgfc, brick, path, log_file,log_level, retries)
+    if ret == -1:
+        raise_oserr(prefix="gf_changelog_register")
+
+
+def cl_history_scan():
+    ret = libgfc.gf_history_changelog_scan()
+    if ret == -1:
+        raise_oserr(prefix="gf_history_changelog_scan")
+
+    return ret
+
+
+def cl_history_changelog(changelog_path, start, end, num_parallel):
+    actual_end = c_ulong()
+    ret = gfind_history_changelog(libgfc,changelog_path, start, end,
+                                      num_parallel,
+                                      byref(actual_end))
+    if ret == -1:
+        raise_oserr(prefix="gf_history_changelog")
+
+    return actual_end.value
+
+
+def cl_history_startfresh():
+    ret = libgfc.gf_history_changelog_start_fresh()
+    if ret == -1:
+        raise_oserr(prefix="gf_history_changelog_start_fresh")
+
+
+def cl_history_getchanges():
+    """ remove hardcoding for path name length """
+    def clsort(f):
+        return f.split('.')[-1]
+
+    changes = []
+    buf = gf_create_string_buffer(4096)
+
+    while True:
+        ret = libgfc.gf_history_changelog_next_change(buf, 4096)
+        if ret in (0, -1):
+            break
+        # py2 and py3 compatibility
+        result = bytearray_to_str(buf.raw[:ret - 1])
+        changes.append(result)
+    if ret == -1:
+        raise_oserr(prefix="gf_history_changelog_next_change")
+
+    return sorted(changes, key=clsort)
+
+
+def cl_history_done(clfile):
+    ret = gfind_history_changelog_done(libgfc, clfile)
+    if ret == -1:
+        raise_oserr(prefix="gf_history_changelog_done")