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-rw-r--r--tools/perf/util/data.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
new file mode 100644
index 000000000..5b52ffedf
--- /dev/null
+++ b/tools/perf/util/data.h
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_DATA_H
+#define __PERF_DATA_H
+
+#include <stdbool.h>
+#include <linux/types.h>
+
+enum perf_data_mode {
+ PERF_DATA_MODE_WRITE,
+ PERF_DATA_MODE_READ,
+};
+
+enum perf_dir_version {
+ PERF_DIR_SINGLE_FILE = 0,
+ PERF_DIR_VERSION = 1,
+};
+
+struct perf_data_file {
+ char *path;
+ int fd;
+ unsigned long size;
+};
+
+struct perf_data {
+ const char *path;
+ struct perf_data_file file;
+ bool is_pipe;
+ bool is_dir;
+ bool force;
+ enum perf_data_mode mode;
+
+ struct {
+ u64 version;
+ struct perf_data_file *files;
+ int nr;
+ } dir;
+};
+
+static inline bool perf_data__is_read(struct perf_data *data)
+{
+ return data->mode == PERF_DATA_MODE_READ;
+}
+
+static inline bool perf_data__is_write(struct perf_data *data)
+{
+ return data->mode == PERF_DATA_MODE_WRITE;
+}
+
+static inline int perf_data__is_pipe(struct perf_data *data)
+{
+ return data->is_pipe;
+}
+
+static inline bool perf_data__is_dir(struct perf_data *data)
+{
+ return data->is_dir;
+}
+
+static inline bool perf_data__is_single_file(struct perf_data *data)
+{
+ return data->dir.version == PERF_DIR_SINGLE_FILE;
+}
+
+static inline int perf_data__fd(struct perf_data *data)
+{
+ return data->file.fd;
+}
+
+int perf_data__open(struct perf_data *data);
+void perf_data__close(struct perf_data *data);
+ssize_t perf_data__write(struct perf_data *data,
+ void *buf, size_t size);
+ssize_t perf_data_file__write(struct perf_data_file *file,
+ void *buf, size_t size);
+/*
+ * If at_exit is set, only rename current perf.data to
+ * perf.data.<postfix>, continue write on original data.
+ * Set at_exit when flushing the last output.
+ *
+ * Return value is fd of new output.
+ */
+int perf_data__switch(struct perf_data *data,
+ const char *postfix,
+ size_t pos, bool at_exit, char **new_filepath);
+
+int perf_data__create_dir(struct perf_data *data, int nr);
+int perf_data__open_dir(struct perf_data *data);
+void perf_data__close_dir(struct perf_data *data);
+int perf_data__update_dir(struct perf_data *data);
+unsigned long perf_data__size(struct perf_data *data);
+int perf_data__make_kcore_dir(struct perf_data *data, char *buf, size_t buf_sz);
+char *perf_data__kallsyms_name(struct perf_data *data);
+#endif /* __PERF_DATA_H */