X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=include%2Fbabeltrace%2Fctf%2Ftypes.h;h=14a7e3d4b0fedc51408e7f3a5141506f8952cfdb;hp=95c0d5e2659056aeee33b1d09d0f23ce8a7fe2a4;hb=4c4ba0211b25f7a4ef4f3fbd7cda9ee5a4bc6330;hpb=670977d3f384db208f375255a83060d90075d626

diff --git a/include/babeltrace/ctf/types.h b/include/babeltrace/ctf/types.h
index 95c0d5e2..14a7e3d4 100644
--- a/include/babeltrace/ctf/types.h
+++ b/include/babeltrace/ctf/types.h
@@ -20,7 +20,7 @@
  */
 
 #include <babeltrace/types.h>
-#include <babeltrace/babeltrace.h>
+#include <babeltrace/babeltrace-internal.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
@@ -31,11 +31,17 @@
 #include <glib.h>
 #include <stdio.h>
 
+struct bt_stream_callbacks;
+
 struct packet_index {
 	off_t offset;		/* offset of the packet in the file, in bytes */
-	off_t data_offset;	/* offset of data within the packet */
-	size_t packet_size;	/* packet size, in bits */
-	size_t content_size;	/* content size, in bits */
+	off_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;
+	size_t events_discarded_len;	/* length of the field, in bits */
 };
 
 /*
@@ -55,9 +61,13 @@ struct ctf_stream_pos {
 	uint32_t *content_size_loc; /* pointer to current content size */
 	char *base;		/* mmap base address */
 	ssize_t offset;		/* offset from base, in bits. EOF for end of file. */
+	ssize_t last_offset;	/* offset before the last read_event */
 	size_t cur_index;	/* current index in packet index */
+	void (*packet_seek)(struct 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
@@ -76,10 +86,12 @@ int ctf_enum_read(struct stream_pos *pos, struct definition *definition);
 int ctf_enum_write(struct stream_pos *pos, struct definition *definition);
 int ctf_struct_rw(struct stream_pos *pos, struct definition *definition);
 int ctf_variant_rw(struct stream_pos *pos, struct definition *definition);
-int ctf_array_rw(struct stream_pos *pos, struct definition *definition);
-int ctf_sequence_rw(struct stream_pos *pos, struct definition *definition);
+int ctf_array_read(struct stream_pos *pos, struct definition *definition);
+int ctf_array_write(struct stream_pos *pos, struct definition *definition);
+int ctf_sequence_read(struct stream_pos *pos, struct definition *definition);
+int ctf_sequence_write(struct stream_pos *pos, struct definition *definition);
 
-void ctf_move_pos_slow(struct ctf_stream_pos *pos, size_t offset, int whence);
+void ctf_packet_seek(struct stream_pos *pos, size_t index, int whence);
 
 void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags);
 void ctf_fini_pos(struct ctf_stream_pos *pos);
@@ -93,18 +105,22 @@ static inline
 void ctf_move_pos(struct ctf_stream_pos *pos, size_t bit_offset)
 {
 	printf_debug("ctf_move_pos test EOF: %zd\n", pos->offset);
-	if (pos->offset == EOF)
+	if (unlikely(pos->offset == EOF))
 		return;
 
 	if (pos->fd >= 0) {
-		if (((pos->prot == PROT_READ)
-		      && (pos->offset + bit_offset >= pos->content_size))
-		    || ((pos->prot == PROT_WRITE)
-		      && (pos->offset + bit_offset >= pos->packet_size))) {
-			printf_debug("ctf_move_pos_slow (before call): %zd\n",
+		/*
+		 * PROT_READ ctf_packet_seek is called from within
+		 * ctf_pos_get_event so end of packet does not change
+		 * the packet context on for the last event of the
+		 * packet.
+		 */
+		if ((pos->prot == PROT_WRITE)
+		    	&& (unlikely(pos->offset + bit_offset >= pos->packet_size))) {
+			printf_debug("ctf_packet_seek (before call): %zd\n",
 				     pos->offset);
-			ctf_move_pos_slow(pos, bit_offset, SEEK_CUR);
-			printf_debug("ctf_move_pos_slow (after call): %zd\n",
+			ctf_packet_seek(&pos->parent, 0, SEEK_CUR);
+			printf_debug("ctf_packet_seek (after call): %zd\n",
 				     pos->offset);
 			return;
 		}
@@ -147,7 +163,7 @@ void ctf_dummy_pos(struct ctf_stream_pos *pos, struct ctf_stream_pos *dummy)
 static inline
 int ctf_pos_packet(struct ctf_stream_pos *dummy)
 {
-	if (dummy->offset > dummy->packet_size)
+	if (unlikely(dummy->offset > dummy->packet_size))
 		return -ENOSPC;
 	return 0;
 }
@@ -161,11 +177,31 @@ void ctf_pos_pad_packet(struct ctf_stream_pos *pos)
 static inline
 int ctf_pos_access_ok(struct ctf_stream_pos *pos, size_t bit_len)
 {
-	if (pos->offset == EOF)
+	if (unlikely(pos->offset == EOF))
 		return 0;
-	if (pos->offset + bit_len > pos->packet_size)
+	if (unlikely(pos->offset + bit_len > pos->packet_size))
 		return 0;
 	return 1;
 }
 
+/*
+ * Update the stream position for to the current event. This moves to
+ * the next packet if we are located at the end of the current packet.
+ */
+static inline
+void ctf_pos_get_event(struct ctf_stream_pos *pos)
+{
+	assert(pos->offset <= pos->content_size);
+	if (pos->offset == pos->content_size) {
+		printf_debug("ctf_packet_seek (before call): %zd\n",
+			     pos->offset);
+		pos->packet_seek(&pos->parent, 0, SEEK_CUR);
+		printf_debug("ctf_packet_seek (after call): %zd\n",
+			     pos->offset);
+	}
+}
+
+void ctf_print_timestamp(FILE *fp, struct ctf_stream_definition *stream,
+			uint64_t timestamp);
+
 #endif /* _BABELTRACE_CTF_TYPES_H */