Hello,
As suggested by Jonathan [1], I should start a new email thread.
Why are there 2 identical declarations of struct ustctl_consumer_channel_attr
(one in lttng-ust, one in lttng-tools) instead of just one ?
It just seems redundant to me.
[sboisvert@GT480:lttng-ust]$ grep "struct ustctl_consumer_channel_attr {" -A 11
include/lttng/ust-ctl.h
struct ustctl_consumer_channel_attr {
enum lttng_ust_chan_type type;
uint64_t subbuf_size; /* bytes */
uint64_t num_subbuf; /* power of 2 */
int overwrite; /* 1: overwrite, 0: discard */
unsigned int switch_timer_interval; /* usec */
unsigned int read_timer_interval; /* usec */
enum lttng_ust_output output; /* splice, mmap */
uint32_t chan_id; /* channel ID */
unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */
int64_t blocking_timeout; /* Blocking timeout
(usec) */
} LTTNG_PACKED;
[sboisvert@GT480:lttng-tools]$ grep "struct ustctl_consumer_channel_attr {" -A
11 src/bin/lttng-sessiond/lttng-ust-ctl.h
struct ustctl_consumer_channel_attr {
enum lttng_ust_chan_type type;
uint64_t subbuf_size; /* bytes */
uint64_t num_subbuf; /* power of 2 */
int overwrite; /* 1: overwrite, 0: discard */
unsigned int switch_timer_interval; /* usec */
unsigned int read_timer_interval; /* usec */
enum lttng_ust_output output; /* splice, mmap */
uint32_t chan_id; /* channel ID */
unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */
int64_t blocking_timeout; /* Blocking timeout
(usec) */
} LTTNG_PACKED;
----
[1] https://lists.lttng.org/pipermail/lttng-dev/2019-May/028894.html
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