1 files changed, 64 insertions, 0 deletions
diff --git a/impl/src/main/java/io/perfmark/impl/MarkHolder.java b/impl/src/main/java/io/perfmark/impl/MarkHolder.java
new file mode 100644
index 0000000..a18fdfd
--- /dev/null
+++ b/impl/src/main/java/io/perfmark/impl/MarkHolder.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.perfmark.impl;
+
+import java.util.List;
+
+public abstract class MarkHolder {
+
+  public static final int NO_MAX_MARKS = -1;
+
+  public abstract void start(long gen, String taskName, String tagName, long tagId, long nanoTime);
+
+  public abstract void start(long gen, String taskName, long nanoTime);
+
+  public abstract void start(long gen, String taskName, String subTaskName, long nanoTime);
+
+  public abstract void link(long gen, long linkId);
+
+  public abstract void stop(long gen, long nanoTime);
+
+  public abstract void stop(long gen, String taskName, String tagName, long tagId, long nanoTime);
+
+  public abstract void stop(long gen, String taskName, long nanoTime);
+
+  public abstract void stop(long gen, String taskName, String subTaskName, long nanoTime);
+
+  public abstract void event(long gen, String eventName, String tagName, long tagId, long nanoTime);
+
+  public abstract void event(long gen, String eventName, long nanoTime);
+
+  public abstract void event(long gen, String eventName, String subEventName, long nanoTime);
+
+  public abstract void attachTag(long gen, String tagName, long tagId);
+
+  public abstract void attachKeyedTag(long gen, String name, String value);
+
+  public abstract void attachKeyedTag(long gen, String name, long value0);
+
+  public abstract void attachKeyedTag(long gen, String name, long value0, long value1);
+
+  public abstract void resetForTest();
+
+  public abstract List<Mark> read(boolean concurrentWrites);
+
+  public int maxMarks() {
+    return NO_MAX_MARKS;
+  }
+
+  protected MarkHolder() {}
+}