#include "lttng-events.h"
#include "lttng-tracer.h"
#include "lttng-abi-old.h"
+#include "lttng-endian.h"
#include "wrapper/vzalloc.h"
+#include "wrapper/ringbuffer/backend.h"
+#include "wrapper/ringbuffer/frontend.h"
#define METADATA_CACHE_DEFAULT_SIZE 4096
/* We need to sync enablers with session before activation. */
lttng_session_sync_enablers(session);
+ /* Clear each stream's quiescent state. */
+ list_for_each_entry(chan, &session->chan, list) {
+ if (chan->channel_type != METADATA_CHANNEL)
+ lib_ring_buffer_clear_quiescent_channel(chan->chan);
+ }
+
ACCESS_ONCE(session->active) = 1;
ACCESS_ONCE(session->been_active) = 1;
ret = _lttng_session_metadata_statedump(session);
int lttng_session_disable(struct lttng_session *session)
{
int ret = 0;
+ struct lttng_channel *chan;
mutex_lock(&sessions_mutex);
if (!session->active) {
/* Set transient enabler state to "disabled" */
session->tstate = 0;
lttng_session_sync_enablers(session);
+
+ /* Set each stream's quiescent state. */
+ list_for_each_entry(chan, &session->chan, list) {
+ if (chan->channel_type != METADATA_CHANNEL)
+ lib_ring_buffer_set_quiescent_channel(chan->chan);
+ }
end:
mutex_unlock(&sessions_mutex);
return ret;
? "UTF8"
: "ASCII",
field->type.u.basic.integer.base,
-#ifdef __BIG_ENDIAN
+#if __BYTE_ORDER == __BIG_ENDIAN
field->type.u.basic.integer.reverse_byte_order ? " byte_order = le;" : "",
#else
field->type.u.basic.integer.reverse_byte_order ? " byte_order = be;" : "",
? "UTF8"
: "ASCII",
elem_type->u.basic.integer.base,
-#ifdef __BIG_ENDIAN
+#if __BYTE_ORDER == __BIG_ENDIAN
elem_type->u.basic.integer.reverse_byte_order ? " byte_order = le;" : "",
#else
elem_type->u.basic.integer.reverse_byte_order ? " byte_order = be;" : "",
? "UTF8"
: "ASCII"),
length_type->u.basic.integer.base,
-#ifdef __BIG_ENDIAN
+#if __BYTE_ORDER == __BIG_ENDIAN
length_type->u.basic.integer.reverse_byte_order ? " byte_order = le;" : "",
#else
length_type->u.basic.integer.reverse_byte_order ? " byte_order = be;" : "",
? "UTF8"
: "ASCII"),
elem_type->u.basic.integer.base,
-#ifdef __BIG_ENDIAN
+#if __BYTE_ORDER == __BIG_ENDIAN
elem_type->u.basic.integer.reverse_byte_order ? " byte_order = le;" : "",
#else
elem_type->u.basic.integer.reverse_byte_order ? " byte_order = be;" : "",
* taken at start of trace.
* Yes, this is only an approximation. Yes, we can (and will) do better
* in future versions.
+ * Return 0 if offset is negative. It may happen if the system sets
+ * the REALTIME clock to 0 after boot.
*/
static
uint64_t measure_clock_offset(void)
{
- uint64_t offset, monotonic[2], realtime;
+ uint64_t monotonic_avg, monotonic[2], realtime;
+ int64_t offset;
struct timespec rts = { 0, 0 };
unsigned long flags;
monotonic[1] = trace_clock_read64();
local_irq_restore(flags);
- offset = (monotonic[0] + monotonic[1]) >> 1;
+ monotonic_avg = (monotonic[0] + monotonic[1]) >> 1;
realtime = (uint64_t) rts.tv_sec * NSEC_PER_SEC;
realtime += rts.tv_nsec;
- offset = realtime - offset;
+ offset = (int64_t) realtime - monotonic_avg;
+ if (offset < 0)
+ return 0;
return offset;
}
CTF_SPEC_MAJOR,
CTF_SPEC_MINOR,
uuid_s,
-#ifdef __BIG_ENDIAN
+#if __BYTE_ORDER == __BIG_ENDIAN
"be"
#else
"le"
if (ret)
return ret;
ret = wrapper_get_pfnblock_flags_mask_init();
+ if (ret)
+ return ret;
+ ret = wrapper_get_pageblock_flags_mask_init();
if (ret)
return ret;
ret = lttng_context_init();