Bug #135
closed
Documentation should mention that lttng_event must be initialized to 0 to use the default values
Added by Raphaël Beamonte about 12 years ago.
Updated about 12 years ago.
Description
If we do not initialize the struct lttng_event to 0, the lttng sessiond might return a fatal error when executing (if the value of the loglevel_type is set to an unknown value).
Documentation should mention that we can (have to ?) initialize to 0 the structure with :
struct lttng_event event = {0};
Or
struct lttng_event event;
memset(&event, 0, sizeof(struct lttng_event)));
- Status changed from New to Confirmed
- Assignee set to Raphaël Beamonte
This is actually safer since this data is passed over the network and zero is "normally" uninitialized values.
However, the lttng ctl API enable-even should check mandatory field before sending it back to the session daemon and as of today, the loglevel check is not there.
Feel free to send a patch for developer documentation and loglevel check in liblttng-ctl enable-event call.
Should mention that all struct should be initialized to zéro before use
- Status changed from Confirmed to Resolved
- % Done changed from 0 to 100
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