+#include <stdio.h>
+#include <inttypes.h>
+#include <babeltrace/mmap-align.h>
+
+#define LAST_OFFSET_POISON ((int64_t) ~0ULL)
+
+struct bt_stream_callbacks;
+
+struct packet_index {
+ off_t offset; /* offset of the packet in the file, in bytes */
+ int64_t data_offset; /* offset of data within the packet, in bits */
+ uint64_t packet_size; /* packet size, in bits */
+ uint64_t content_size; /* content size, in bits */
+ uint64_t timestamp_begin;
+ uint64_t timestamp_end;
+ uint64_t events_discarded;
+ uint64_t events_discarded_len; /* length of the field, in bits */
+};
+
+/*
+ * Always update ctf_stream_pos with ctf_move_pos and ctf_init_pos.
+ */
+struct ctf_stream_pos {
+ struct bt_stream_pos parent;
+ int fd; /* backing file fd. -1 if unset. */
+ GArray *packet_cycles_index; /* contains struct packet_index in cycles */
+ GArray *packet_real_index; /* contains struct packet_index in ns */
+ int prot; /* mmap protection */
+ int flags; /* mmap flags */
+
+ /* Current position */
+ off_t mmap_offset; /* mmap offset in the file, in bytes */
+ off_t mmap_base_offset; /* offset of start of packet in mmap, in bytes */
+ uint64_t packet_size; /* current packet size, in bits */
+ uint64_t content_size; /* current content size, in bits */
+ uint64_t *content_size_loc; /* pointer to current content size */
+ struct mmap_align *base_mma;/* mmap base address */
+ int64_t offset; /* offset from base, in bits. EOF for end of file. */
+ int64_t last_offset; /* offset before the last read_event */
+ uint64_t cur_index; /* current index in packet index */
+ uint64_t last_events_discarded; /* last known amount of event discarded */
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
+ int whence); /* function called to switch packet */
+
+ int dummy; /* dummy position, for length calculation */
+ struct bt_stream_callbacks *cb; /* Callbacks registered for iterator. */
+};
+
+static inline
+struct ctf_stream_pos *ctf_pos(struct bt_stream_pos *pos)
+{
+ return container_of(pos, struct ctf_stream_pos, parent);
+}
+
+BT_HIDDEN
+int ctf_integer_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_integer_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_float_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_float_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_string_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_string_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_enum_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_enum_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_struct_rw(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_variant_rw(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_array_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_array_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_sequence_read(struct bt_stream_pos *pos, struct bt_definition *definition);
+BT_HIDDEN
+int ctf_sequence_write(struct bt_stream_pos *pos, struct bt_definition *definition);
+
+void ctf_packet_seek(struct bt_stream_pos *pos, size_t index, int whence);
+
+int ctf_init_pos(struct ctf_stream_pos *pos, struct bt_trace_descriptor *trace,
+ int fd, int open_flags);
+int ctf_fini_pos(struct ctf_stream_pos *pos);