Implement clock IR generation

[babeltrace.git] / include / babeltrace / ctf-ir / metadata.h

diff --git a/include/babeltrace/ctf-ir/metadata.h b/include/babeltrace/ctf-ir/metadata.h
index 2d216f2fa23d27385dc0b21b5555cb7047ec25a1..2cae4630eee22e14da47314798c3c09222f4c6a2 100644 (file)
--- a/include/babeltrace/ctf-ir/metadata.h
+++ b/include/babeltrace/ctf-ir/metadata.h
@@ -54,6 +54,40 @@ struct ctf_stream_event {
        struct definition_struct *event_fields;
 };
 
+#define CTF_CLOCK_SET_FIELD(ctf_clock, field)                          \
+       do {                                                            \
+               (ctf_clock)->field_mask |= CTF_CLOCK_ ## field;         \
+       } while (0)
+
+#define CTF_CLOCK_FIELD_IS_SET(ctf_clock, field)                       \
+               ((ctf_clock)->field_mask & CTF_CLOCK_ ## field)
+
+#define CTF_CLOCK_GET_FIELD(ctf_clock, field)                          \
+       ({                                                              \
+               assert(CTF_CLOCK_FIELD_IS_SET(ctf_clock, field));       \
+               (ctf_clock)->(field);                                   \
+       })
+
+struct ctf_clock {
+       GQuark name;
+       GQuark uuid;
+       char *description;
+       uint64_t freq;  /* frequency, in HZ */
+       /* precision in seconds is: precision * (1/freq) */
+       uint64_t precision;
+       /*
+        * The offset from Epoch is: offset_s + (offset * (1/freq))
+        * Coarse clock offset from Epoch (in seconds).
+        */
+       uint64_t offset_s;
+       /* Fine clock offset from Epoch, in (1/freq) units. */
+       uint64_t offset;
+
+       enum {                                  /* Fields populated mask */
+               CTF_CLOCK_name          =       (1U << 0),
+       } field_mask;
+};
+
 #define CTF_TRACE_SET_FIELD(ctf_trace, field)                          \
        do {                                                            \
                (ctf_trace)->field_mask |= CTF_TRACE_ ## field;         \
@@ -68,7 +102,6 @@ struct ctf_stream_event {
                (ctf_trace)->(field);                                   \
        })
 
-
 struct ctf_trace {
        struct trace_descriptor parent;
        /* root scope */
@@ -79,6 +112,7 @@ struct ctf_trace {
        struct definition_scope *definition_scope;
        GPtrArray *streams;                     /* Array of struct ctf_stream_class pointers */
        struct ctf_stream *metadata;
+       GHashTable *clocks;
 
        struct declaration_struct *packet_header_decl;