Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 104 insertions, 0 deletions

diff --git a/src/cls/version/cls_version_client.cc b/src/cls/version/cls_version_client.cc
new file mode 100644
index 000000000..769a7b77b
--- /dev/null
+++ b/src/cls/version/cls_version_client.cc
@@ -0,0 +1,104 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include <errno.h>
+
+#include "cls/version/cls_version_client.h"
+#include "include/rados/librados.hpp"
+
+
+using namespace librados;
+
+
+void cls_version_set(librados::ObjectWriteOperation& op, obj_version& objv)
+{
+  bufferlist in;
+  cls_version_set_op call;
+  call.objv = objv;
+  encode(call, in);
+  op.exec("version", "set", in);
+}
+
+void cls_version_inc(librados::ObjectWriteOperation& op)
+{
+  bufferlist in;
+  cls_version_inc_op call;
+  encode(call, in);
+  op.exec("version", "inc", in);
+}
+
+void cls_version_inc(librados::ObjectWriteOperation& op, obj_version& objv, VersionCond cond)
+{
+  bufferlist in;
+  cls_version_inc_op call;
+  call.objv = objv;
+
+  obj_version_cond c;
+  c.cond = cond;
+  c.ver = objv;
+
+  call.conds.push_back(c);
+
+  encode(call, in);
+  op.exec("version", "inc_conds", in);
+}
+
+void cls_version_check(librados::ObjectOperation& op, obj_version& objv, VersionCond cond)
+{
+  bufferlist in;
+  cls_version_check_op call;
+  call.objv = objv;
+
+  obj_version_cond c;
+  c.cond = cond;
+  c.ver = objv;
+
+  call.conds.push_back(c);
+
+  encode(call, in);
+  op.exec("version", "check_conds", in);
+}
+
+class VersionReadCtx : public ObjectOperationCompletion {
+  obj_version *objv;
+public:
+  explicit VersionReadCtx(obj_version *_objv) : objv(_objv) {}
+  void handle_completion(int r, bufferlist& outbl) override {
+    if (r >= 0) {
+      cls_version_read_ret ret;
+      try {
+        auto iter = outbl.cbegin();
+        decode(ret, iter);
+	*objv = ret.objv;
+      } catch (ceph::buffer::error& err) {
+        // nothing we can do about it atm
+      }
+    }
+  }
+};
+
+void cls_version_read(librados::ObjectReadOperation& op, obj_version *objv)
+{
+  bufferlist inbl;
+  op.exec("version", "read", inbl, new VersionReadCtx(objv));
+}
+
+int cls_version_read(librados::IoCtx& io_ctx, std::string& oid, obj_version *ver)
+{
+  bufferlist in, out;
+  int r = io_ctx.exec(oid, "version", "read", in, out);
+  if (r < 0)
+    return r;
+
+  cls_version_read_ret ret;
+  try {
+    auto iter = out.cbegin();
+    decode(ret, iter);
+  } catch (ceph::buffer::error& err) {
+    return -EIO;
+  }
+
+  *ver = ret.objv;
+
+  return r;
+}