*/
#define _GNU_SOURCE
+#define _LGPL_SOURCE
#include <inttypes.h>
#include <string.h>
#include <unistd.h>
chan->attr.output = DEFAULT_KERNEL_CHANNEL_OUTPUT;
chan->attr.switch_timer_interval = DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER;
chan->attr.read_timer_interval = DEFAULT_KERNEL_CHANNEL_READ_TIMER;
+ chan->attr.live_timer_interval = DEFAULT_KERNEL_CHANNEL_LIVE_TIMER;
break;
case LTTNG_DOMAIN_UST:
switch (type) {
DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER;
chan->attr.read_timer_interval =
DEFAULT_UST_UID_CHANNEL_READ_TIMER;
+ chan->attr.live_timer_interval =
+ DEFAULT_UST_UID_CHANNEL_LIVE_TIMER;
break;
case LTTNG_BUFFER_PER_PID:
default:
DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER;
chan->attr.read_timer_interval =
DEFAULT_UST_PID_CHANNEL_READ_TIMER;
+ chan->attr.live_timer_interval =
+ DEFAULT_UST_UID_CHANNEL_LIVE_TIMER;
break;
}
break;
attr = defattr;
}
+ if (ksession->snapshot_mode) {
+ /* Force channel attribute for snapshot mode. */
+ attr->attr.overwrite = 1;
+ attr->attr.output = LTTNG_EVENT_MMAP;
+ }
+
/* Channel not found, creating it */
ret = kernel_create_channel(ksession, attr);
if (ret < 0) {
attr = defattr;
}
+ if (usess->snapshot_mode) {
+ /* Force channel attribute for snapshot mode. */
+ attr->attr.overwrite = 1;
+ attr->attr.output = LTTNG_EVENT_MMAP;
+ }
+
/*
* Validate UST buffer size and number of buffers: must both be power of 2
* and nonzero. We validate right here for UST, because applications will
}
/* Create UST channel */
- uchan = trace_ust_create_channel(attr);
+ uchan = trace_ust_create_channel(attr, LTTNG_DOMAIN_UST);
if (uchan == NULL) {
ret = LTTNG_ERR_FATAL;
goto error;
}
+
+ /*
+ * HACK: Set the channel's subdomain (JUL, Log4j, Python, etc.)
+ * based on the default name.
+ */
+ if (!strcmp(uchan->name, DEFAULT_JUL_CHANNEL_NAME)) {
+ uchan->domain = LTTNG_DOMAIN_JUL;
+ } else if (!strcmp(uchan->name, DEFAULT_LOG4J_CHANNEL_NAME)) {
+ uchan->domain = LTTNG_DOMAIN_LOG4J;
+ } else if (!strcmp(uchan->name, DEFAULT_PYTHON_CHANNEL_NAME)) {
+ uchan->domain = LTTNG_DOMAIN_PYTHON;
+ }
+
uchan->enabled = 1;
if (trace_ust_is_max_id(usess->used_channel_id)) {
ret = LTTNG_ERR_UST_CHAN_FAIL;
/* Adding the channel to the channel hash table. */
rcu_read_lock();
- lttng_ht_add_unique_str(usess->domain_global.channels, &uchan->node);
+ if (strncmp(uchan->name, DEFAULT_METADATA_NAME,
+ sizeof(uchan->name))) {
+ lttng_ht_add_unique_str(usess->domain_global.channels, &uchan->node);
+ } else {
+ /*
+ * Copy channel attribute to session if this is metadata so if NO
+ * application exists we can access that data in the shadow copy during
+ * the global update of newly registered application.
+ */
+ memcpy(&usess->metadata_attr, &uchan->attr,
+ sizeof(usess->metadata_attr));
+ }
rcu_read_unlock();
DBG2("Channel %s created successfully", uchan->name);