On 16/07/2019 13:06, Ravindra Kumar Meena wrote:
Very good, please change now the format of the event header to the one
used by LTTNG:
struct event_header_compact {
enum : uint5_t { compact = 0 ... 30, extended = 31 } id;
variant <id> {
struct {
uint27_clock_monotonic_t timestamp;
} compact;
struct {
uint32_t id;
uint64_clock_monotonic_t timestamp;
} extended;
} v;
} align(8);
We need it in client-side also. I think C does not have variant data type.
In C you can do everything what software can do.
You should have already a Git clone of lttng-ust. In
"liblttng-ust/lttng-ring-buffer-client.h" see lttng_write_event_header().
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