initial code repo

[stor4nfv.git] / src / ceph / src / common / snap_types.cc

diff --git a/src/ceph/src/common/snap_types.cc b/src/ceph/src/common/snap_types.cc
new file mode 100644 (file)
index 0000000..6b65d7c
--- /dev/null
+++ b/src/ceph/src/common/snap_types.cc
@@ -0,0 +1,93 @@
+
+#include "snap_types.h"
+#include "common/Formatter.h"
+
+void SnapRealmInfo::encode(bufferlist& bl) const
+{
+  h.num_snaps = my_snaps.size();
+  h.num_prior_parent_snaps = prior_parent_snaps.size();
+  ::encode(h, bl);
+  ::encode_nohead(my_snaps, bl);
+  ::encode_nohead(prior_parent_snaps, bl);
+}
+
+void SnapRealmInfo::decode(bufferlist::iterator& bl)
+{
+  ::decode(h, bl);
+  ::decode_nohead(h.num_snaps, my_snaps, bl);
+  ::decode_nohead(h.num_prior_parent_snaps, prior_parent_snaps, bl);
+}
+
+void SnapRealmInfo::dump(Formatter *f) const
+{
+  f->dump_unsigned("ino", ino());
+  f->dump_unsigned("parent", parent());
+  f->dump_unsigned("seq", seq());
+  f->dump_unsigned("parent_since", parent_since());
+  f->dump_unsigned("created", created());
+
+  f->open_array_section("snaps");
+  for (vector<snapid_t>::const_iterator p = my_snaps.begin(); p != my_snaps.end(); ++p)
+    f->dump_unsigned("snap", *p);
+  f->close_section();
+
+  f->open_array_section("prior_parent_snaps");
+  for (vector<snapid_t>::const_iterator p = prior_parent_snaps.begin(); p != prior_parent_snaps.end(); ++p)
+    f->dump_unsigned("snap", *p);
+  f->close_section();  
+}
+
+void SnapRealmInfo::generate_test_instances(list<SnapRealmInfo*>& o)
+{
+  o.push_back(new SnapRealmInfo);
+  o.push_back(new SnapRealmInfo(1, 10, 10, 0));
+  o.push_back(new SnapRealmInfo(1, 10, 10, 0));
+  o.back()->my_snaps.push_back(10);
+  o.push_back(new SnapRealmInfo(1, 10, 10, 5));
+  o.back()->my_snaps.push_back(10);
+  o.back()->prior_parent_snaps.push_back(3);
+  o.back()->prior_parent_snaps.push_back(5);
+}
+
+
+// -----
+
+bool SnapContext::is_valid() const
+{
+  // seq is a valid snapid
+  if (seq > CEPH_MAXSNAP)
+    return false;
+  if (!snaps.empty()) {
+    // seq >= snaps[0]
+    if (snaps[0] > seq)
+      return false;
+    // snaps[] is descending
+    snapid_t t = snaps[0];
+    for (unsigned i=1; i<snaps.size(); i++) {
+      if (snaps[i] >= t || t == 0)
+       return false;
+      t = snaps[i];
+    }
+  }
+  return true;
+}
+
+void SnapContext::dump(Formatter *f) const
+{
+  f->dump_unsigned("seq", seq);
+  f->open_array_section("snaps");
+  for (vector<snapid_t>::const_iterator p = snaps.begin(); p != snaps.end(); ++p)
+    f->dump_unsigned("snap", *p);
+  f->close_section();
+}
+
+void SnapContext::generate_test_instances(list<SnapContext*>& o)
+{
+  o.push_back(new SnapContext);
+  vector<snapid_t> v;
+  o.push_back(new SnapContext(10, v));
+  v.push_back(18);
+  v.push_back(3);
+  v.push_back(1);
+  o.push_back(new SnapContext(20, v));
+}