Move msgpack to libcommon

[lttng-ust.git] / src / common / msgpack / msgpack.h

diff --git a/src/common/msgpack/msgpack.h b/src/common/msgpack/msgpack.h
new file mode 100644 (file)
index 0000000..140ad38
--- /dev/null
+++ b/src/common/msgpack/msgpack.h
@@ -0,0 +1,70 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ * Copyright (C) 2020 Francis Deslauriers <francis.deslauriers@efficios.com>
+ */
+
+#ifndef _LTTNG_UST_MSGPACK_H
+#define _LTTNG_UST_MSGPACK_H
+
+#include <stddef.h>
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else /* __KERNEL__ */
+#include <stdint.h>
+#endif /* __KERNEL__ */
+
+struct lttng_msgpack_writer {
+       uint8_t *buffer;
+       uint8_t *write_pos;
+       const uint8_t *end_write_pos;
+       uint8_t array_nesting;
+       uint8_t map_nesting;
+};
+
+void lttng_msgpack_writer_init(
+               struct lttng_msgpack_writer *writer,
+               uint8_t *buffer, size_t size)
+       __attribute__((visibility("hidden")));
+
+void lttng_msgpack_writer_fini(struct lttng_msgpack_writer *writer)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_write_nil(struct lttng_msgpack_writer *writer)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_write_true(struct lttng_msgpack_writer *writer)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_write_false(struct lttng_msgpack_writer *writer)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_write_unsigned_integer(
+               struct lttng_msgpack_writer *writer, uint64_t value)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_write_signed_integer(
+               struct lttng_msgpack_writer *writer, int64_t value)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_write_double(struct lttng_msgpack_writer *writer, double value)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_write_str(struct lttng_msgpack_writer *writer,
+               const char *value)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_begin_map(struct lttng_msgpack_writer *writer, size_t count)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_end_map(struct lttng_msgpack_writer *writer)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_begin_array(
+               struct lttng_msgpack_writer *writer, size_t count)
+       __attribute__((visibility("hidden")));
+
+int lttng_msgpack_end_array(struct lttng_msgpack_writer *writer)
+       __attribute__((visibility("hidden")));
+
+#endif /* _LTTNG_UST_MSGPACK_H */