initial code repo

[stor4nfv.git] / src / ceph / src / cls / log / cls_log_client.cc

diff --git a/src/ceph/src/cls/log/cls_log_client.cc b/src/ceph/src/cls/log/cls_log_client.cc
new file mode 100644 (file)
index 0000000..0aa6e16
--- /dev/null
+++ b/src/ceph/src/cls/log/cls_log_client.cc
@@ -0,0 +1,154 @@
+#include <errno.h>
+
+#include "cls/log/cls_log_ops.h"
+#include "include/rados/librados.hpp"
+#include "include/compat.h"
+
+
+using namespace librados;
+
+
+
+void cls_log_add(librados::ObjectWriteOperation& op, list<cls_log_entry>& entries, bool monotonic_inc)
+{
+  bufferlist in;
+  cls_log_add_op call;
+  call.entries = entries;
+  ::encode(call, in);
+  op.exec("log", "add", in);
+}
+
+void cls_log_add(librados::ObjectWriteOperation& op, cls_log_entry& entry)
+{
+  bufferlist in;
+  cls_log_add_op call;
+  call.entries.push_back(entry);
+  ::encode(call, in);
+  op.exec("log", "add", in);
+}
+
+void cls_log_add_prepare_entry(cls_log_entry& entry, const utime_t& timestamp,
+                 const string& section, const string& name, bufferlist& bl)
+{
+  entry.timestamp = timestamp;
+  entry.section = section;
+  entry.name = name;
+  entry.data = bl;
+}
+
+void cls_log_add(librados::ObjectWriteOperation& op, const utime_t& timestamp,
+                 const string& section, const string& name, bufferlist& bl)
+{
+  cls_log_entry entry;
+
+  cls_log_add_prepare_entry(entry, timestamp, section, name, bl);
+  cls_log_add(op, entry);
+}
+
+void cls_log_trim(librados::ObjectWriteOperation& op, const utime_t& from_time, const utime_t& to_time,
+                  const string& from_marker, const string& to_marker)
+{
+  bufferlist in;
+  cls_log_trim_op call;
+  call.from_time = from_time;
+  call.to_time = to_time;
+  call.from_marker = from_marker;
+  call.to_marker = to_marker;
+  ::encode(call, in);
+  op.exec("log", "trim", in);
+}
+
+int cls_log_trim(librados::IoCtx& io_ctx, const string& oid, const utime_t& from_time, const utime_t& to_time,
+                 const string& from_marker, const string& to_marker)
+{
+  bool done = false;
+
+  do {
+    ObjectWriteOperation op;
+
+    cls_log_trim(op, from_time, to_time, from_marker, to_marker);
+
+    int r = io_ctx.operate(oid, &op);
+    if (r == -ENODATA)
+      done = true;
+    else if (r < 0)
+      return r;
+
+  } while (!done);
+
+
+  return 0;
+}
+
+class LogListCtx : public ObjectOperationCompletion {
+  list<cls_log_entry> *entries;
+  string *marker;
+  bool *truncated;
+public:
+  LogListCtx(list<cls_log_entry> *_entries, string *_marker, bool *_truncated) :
+                                      entries(_entries), marker(_marker), truncated(_truncated) {}
+  void handle_completion(int r, bufferlist& outbl) override {
+    if (r >= 0) {
+      cls_log_list_ret ret;
+      try {
+        bufferlist::iterator iter = outbl.begin();
+        ::decode(ret, iter);
+        if (entries)
+          *entries = std::move(ret.entries);
+        if (truncated)
+          *truncated = ret.truncated;
+        if (marker)
+          *marker = std::move(ret.marker);
+      } catch (buffer::error& err) {
+        // nothing we can do about it atm
+      }
+    }
+  }
+};
+
+void cls_log_list(librados::ObjectReadOperation& op, utime_t& from, utime_t& to,
+                  const string& in_marker, int max_entries,
+                 list<cls_log_entry>& entries,
+                  string *out_marker, bool *truncated)
+{
+  bufferlist inbl;
+  cls_log_list_op call;
+  call.from_time = from;
+  call.to_time = to;
+  call.marker = in_marker;
+  call.max_entries = max_entries;
+
+  ::encode(call, inbl);
+
+  op.exec("log", "list", inbl, new LogListCtx(&entries, out_marker, truncated));
+}
+
+class LogInfoCtx : public ObjectOperationCompletion {
+  cls_log_header *header;
+public:
+  explicit LogInfoCtx(cls_log_header *_header) : header(_header) {}
+  void handle_completion(int r, bufferlist& outbl) override {
+    if (r >= 0) {
+      cls_log_info_ret ret;
+      try {
+        bufferlist::iterator iter = outbl.begin();
+        ::decode(ret, iter);
+        if (header)
+         *header = ret.header;
+      } catch (buffer::error& err) {
+        // nothing we can do about it atm
+      }
+    }
+  }
+};
+
+void cls_log_info(librados::ObjectReadOperation& op, cls_log_header *header)
+{
+  bufferlist inbl;
+  cls_log_info_op call;
+
+  ::encode(call, inbl);
+
+  op.exec("log", "info", inbl, new LogInfoCtx(header));
+}
+