X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Findex%2Fctf-index.h;h=b96888bb7e5a41067c29b31531316c898034ee5e;hb=71b4cdb4772eee93e11df518caeb5f8466156764;hp=0efa8887daff4435eae88fe18fee78db7373c858;hpb=50adc26400482c07210afcda8ef1d3322f75871d;p=lttng-tools.git

diff --git a/src/common/index/ctf-index.h b/src/common/index/ctf-index.h
index 0efa8887d..b96888bb7 100644
--- a/src/common/index/ctf-index.h
+++ b/src/common/index/ctf-index.h
@@ -25,11 +25,16 @@
 #ifndef LTTNG_INDEX_H
 #define LTTNG_INDEX_H
 
+#include <common/compat/endian.h>
+#include <common/macros.h>
+
+#include <stdint.h>
 #include <limits.h>
+#include <stddef.h>
 
 #define CTF_INDEX_MAGIC 0xC1F1DCC1
 #define CTF_INDEX_MAJOR 1
-#define CTF_INDEX_MINOR 0
+#define CTF_INDEX_MINOR 1
 
 /*
  * Header at the beginning of each index file.
@@ -44,7 +49,7 @@ struct ctf_packet_index_file_hdr {
 } __attribute__((__packed__));
 
 /*
- * Packet index generated for each trace packet store in a trace file.
+ * Packet index generated for each trace packet stored in a trace file.
  * All integer fields are stored in big endian.
  */
 struct ctf_packet_index {
@@ -54,7 +59,63 @@ struct ctf_packet_index {
 	uint64_t timestamp_begin;
 	uint64_t timestamp_end;
 	uint64_t events_discarded;
-	uint64_t stream_id;
+	uint64_t stream_id;		/* ID of the channel */
+	/* CTF_INDEX 1.0 limit */
+	uint64_t stream_instance_id;	/* ID of the channel instance */
+	uint64_t packet_seq_num;	/* packet sequence number */
 } __attribute__((__packed__));
 
+static inline size_t ctf_packet_index_len(uint32_t major, uint32_t minor)
+{
+	if (major == 1) {
+		switch (minor) {
+		case 0:
+			return offsetof(struct ctf_packet_index, stream_id)
+				+ member_sizeof(struct ctf_packet_index,
+						stream_id);
+		case 1:
+			return offsetof(struct ctf_packet_index, packet_seq_num)
+				+ member_sizeof(struct ctf_packet_index,
+						packet_seq_num);
+		default:
+			abort();
+		}
+	}
+	abort();
+}
+
+static inline uint32_t lttng_to_index_major(uint32_t lttng_major,
+		uint32_t lttng_minor __attribute__((unused)))
+{
+	if (lttng_major == 2) {
+		return 1;
+	}
+	abort();
+}
+
+static inline uint32_t lttng_to_index_minor(uint32_t lttng_major,
+		uint32_t lttng_minor)
+{
+	if (lttng_major == 2) {
+		if (lttng_minor < 8) {
+			return 0;
+		} else {
+			return 1;
+		}
+	}
+	abort();
+}
+
+static inline void ctf_packet_index_file_hdr_init(
+		struct ctf_packet_index_file_hdr *hdr,
+		uint32_t idx_major, uint32_t idx_minor)
+{
+	memset(hdr, 0, sizeof(*hdr));
+	hdr->magic = htobe32(CTF_INDEX_MAGIC);
+	hdr->index_major = htobe32(idx_major);
+	hdr->index_minor = htobe32(idx_minor);
+	hdr->packet_index_len = htobe32(
+			ctf_packet_index_len(idx_major, idx_minor));
+}
+
 #endif /* LTTNG_INDEX_H */