1 files changed, 52 insertions, 0 deletions
diff --git a/src/datafile.h b/src/datafile.h
new file mode 100644
index 0000000..7b6caf3
--- /dev/null
+++ b/src/datafile.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2019-2021 OARC, Inc.
+ * Copyright 2017-2018 Akamai Technologies
+ * Copyright 2006-2016 Nominum, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ */
+
+#include "result.h"
+#include "buffer.h"
+
+#ifndef PERF_DATAFILE_H
+#define PERF_DATAFILE_H 1
+
+#include <pthread.h>
+#include <stdbool.h>
+
+typedef struct perf_datafile {
+    pthread_mutex_t lock;
+    int             pipe_fd;
+    int             fd;
+    bool            is_file;
+    size_t          size, at, have;
+    bool            cached;
+    char            databuf[(64 * 1024) + 1];
+    unsigned int    maxruns;
+    unsigned int    nruns;
+    bool            read_any;
+} perf_datafile_t;
+
+perf_datafile_t* perf_datafile_open(const char* filename);
+
+void perf_datafile_close(perf_datafile_t** dfilep);
+void perf_datafile_setmaxruns(perf_datafile_t* dfile, unsigned int maxruns);
+void perf_datafile_setpipefd(perf_datafile_t* dfile, int pipe_fd);
+
+perf_result_t perf_datafile_next(perf_datafile_t* dfile, perf_buffer_t* lines, bool is_update);
+
+unsigned int perf_datafile_nruns(const perf_datafile_t* dfile);
+
+#endif