initial code repo

[stor4nfv.git] / src / ceph / src / tools / rbd / action / Copy.cc

diff --git a/src/ceph/src/tools/rbd/action/Copy.cc b/src/ceph/src/tools/rbd/action/Copy.cc
new file mode 100644 (file)
index 0000000..3b20085
--- /dev/null
+++ b/src/ceph/src/tools/rbd/action/Copy.cc
@@ -0,0 +1,106 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "tools/rbd/ArgumentTypes.h"
+#include "tools/rbd/Shell.h"
+#include "tools/rbd/Utils.h"
+#include "common/errno.h"
+#include <iostream>
+#include <boost/program_options.hpp>
+
+namespace rbd {
+namespace action {
+namespace copy {
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+static int do_copy(librbd::Image &src, librados::IoCtx& dest_pp,
+                  const char *destname, librbd::ImageOptions& opts,
+                  bool no_progress,
+                  size_t sparse_size)
+{
+  utils::ProgressContext pc("Image copy", no_progress);
+  int r = src.copy_with_progress4(dest_pp, destname, opts, pc, sparse_size);
+  if (r < 0){
+    pc.fail();
+    return r;
+  }
+  pc.finish();
+  return 0;
+}
+
+void get_arguments(po::options_description *positional,
+                   po::options_description *options) {
+  at::add_image_or_snap_spec_options(positional, options,
+                                     at::ARGUMENT_MODIFIER_SOURCE);
+  at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_DEST);
+  at::add_create_image_options(options, false);
+  at::add_sparse_size_option(options);
+  at::add_no_progress_option(options);
+}
+
+int execute(const po::variables_map &vm) {
+  size_t arg_index = 0;
+  std::string pool_name;
+  std::string image_name;
+  std::string snap_name;
+  int r = utils::get_pool_image_snapshot_names(
+    vm, at::ARGUMENT_MODIFIER_SOURCE, &arg_index, &pool_name, &image_name,
+    &snap_name, utils::SNAPSHOT_PRESENCE_PERMITTED,
+    utils::SPEC_VALIDATION_NONE);
+  if (r < 0) {
+    return r;
+  }
+
+  std::string dst_pool_name;
+  std::string dst_image_name;
+  std::string dst_snap_name;
+  r = utils::get_pool_image_snapshot_names(
+    vm, at::ARGUMENT_MODIFIER_DEST, &arg_index, &dst_pool_name, &dst_image_name,
+    &dst_snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_FULL);
+  if (r < 0) {
+    return r;
+  }
+
+  librbd::ImageOptions opts;
+  r = utils::get_image_options(vm, false, &opts);
+  if (r < 0) {
+    return r;
+  }
+
+  librados::Rados rados;
+  librados::IoCtx io_ctx;
+  librbd::Image image;
+  r = utils::init_and_open_image(pool_name, image_name, "", snap_name, true,
+                                 &rados, &io_ctx, &image);
+  if (r < 0) {
+    return r;
+  }
+
+  librados::IoCtx dst_io_ctx;
+  r = utils::init_io_ctx(rados, dst_pool_name, &dst_io_ctx);
+  if (r < 0) {
+    return r;
+  }
+
+  size_t sparse_size = utils::RBD_DEFAULT_SPARSE_SIZE;
+  if (vm.count(at::IMAGE_SPARSE_SIZE)) {
+    sparse_size = vm[at::IMAGE_SPARSE_SIZE].as<size_t>();
+  }
+  r = do_copy(image, dst_io_ctx, dst_image_name.c_str(), opts,
+              vm[at::NO_PROGRESS].as<bool>(), sparse_size);
+  if (r < 0) {
+    std::cerr << "rbd: copy failed: " << cpp_strerror(r) << std::endl;
+    return r;
+  }
+  return 0;
+}
+
+Shell::Action action(
+  {"copy"}, {"cp"}, "Copy src image to dest.", at::get_long_features_help(),
+  &get_arguments, &execute);
+
+} // namespace copy
+} // namespace action
+} // namespace rbd