[lttng-dev] How to add event_header_compact?

[Ravindra Kumar Meena]

Hi developers,

I have added event_header_compact in metadata and I have to add it in C
language so the binary stream have this header. I followed the CTF
documentation https://diamon.org/ctf/#spec6.1

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);

Since C does not have variant data-type. I am facing problem in adding it C
language. What should be the approach for the same? Do you have any
examples where it's been already done?

Thanks

-- 
*Ravindra Kumar Meena*,
B. Tech. Computer Science and Engineering,
Indian Institute of Technology (Indian School of Mines)
<https://www.iitism.ac.in/>, Dhanbad
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