Implement consumer ring buffer position sampling

[lttng-tools.git] / src / common / defaults.h

diff --git a/src/common/defaults.h b/src/common/defaults.h
index 59fe8ec46054b9314e2284c87db5d1a0fa6fe5b9..e0d0d86dccb577eceb6133147567ec84f6d8a664 100644 (file)
--- a/src/common/defaults.h
+++ b/src/common/defaults.h
@@ -20,6 +20,7 @@
 #ifndef _DEFAULTS_H
 #define _DEFAULTS_H
 
+#include <pthread.h>
 #include <src/common/macros.h>
 
 /* Default unix group name for tracing. */
@@ -105,10 +106,12 @@
 #define DEFAULT_LTTNG_EXTRA_KMOD_PROBES                "LTTNG_EXTRA_KMOD_PROBES"
 
 /* Default unix socket path */
-#define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK         DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
-#define DEFAULT_HOME_CLIENT_UNIX_SOCK           DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
-#define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK         DEFAULT_LTTNG_RUNDIR "/sessiond-health"
-#define DEFAULT_HOME_HEALTH_UNIX_SOCK          DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-health"
+#define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK                DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
+#define DEFAULT_HOME_CLIENT_UNIX_SOCK                  DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
+#define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK                DEFAULT_LTTNG_RUNDIR "/sessiond-health"
+#define DEFAULT_HOME_HEALTH_UNIX_SOCK                  DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-health"
+#define DEFAULT_GLOBAL_NOTIFICATION_CHANNEL_UNIX_SOCK   DEFAULT_LTTNG_RUNDIR "/sessiond-notification"
+#define DEFAULT_HOME_NOTIFICATION_CHANNEL_UNIX_SOCK    DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-notification"
 
 /* Default consumer health unix socket path */
 #define DEFAULT_GLOBAL_USTCONSUMER32_HEALTH_UNIX_SOCK  DEFAULT_LTTNG_RUNDIR "/ustconsumerd32/health"
@@ -188,7 +191,7 @@
 #define DEFAULT_PYTHON_EVENT_COMPONENT    "lttng_python"
 #define DEFAULT_PYTHON_EVENT_NAME         DEFAULT_PYTHON_EVENT_COMPONENT ":*"
 
-#define DEFAULT_CHANNEL_OVERWRITE       0
+#define DEFAULT_CHANNEL_OVERWRITE       -1
 #define DEFAULT_CHANNEL_TRACEFILE_SIZE  CONFIG_DEFAULT_CHANNEL_TRACEFILE_SIZE
 #define DEFAULT_CHANNEL_TRACEFILE_COUNT CONFIG_DEFAULT_CHANNEL_TRACEFILE_COUNT
 
@@ -215,6 +218,7 @@
 /* See lttng-kernel.h enum lttng_kernel_output for channel output */
 #define DEFAULT_KERNEL_CHANNEL_OUTPUT                  LTTNG_EVENT_SPLICE
 #define DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER    CONFIG_DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER
+#define DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER   CONFIG_DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER
 #define DEFAULT_KERNEL_CHANNEL_READ_TIMER      CONFIG_DEFAULT_KERNEL_CHANNEL_READ_TIMER
 #define DEFAULT_KERNEL_CHANNEL_LIVE_TIMER      CONFIG_DEFAULT_KERNEL_CHANNEL_LIVE_TIMER
 
@@ -234,6 +238,8 @@
 #define DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER   CONFIG_DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER
 #define DEFAULT_UST_PID_CHANNEL_LIVE_TIMER     CONFIG_DEFAULT_UST_PID_CHANNEL_LIVE_TIMER
 #define DEFAULT_UST_UID_CHANNEL_LIVE_TIMER     CONFIG_DEFAULT_UST_UID_CHANNEL_LIVE_TIMER
+#define DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER  CONFIG_DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER
+#define DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER  CONFIG_DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER
 
 #define DEFAULT_UST_PID_CHANNEL_READ_TIMER      CONFIG_DEFAULT_UST_PID_CHANNEL_READ_TIMER
 #define DEFAULT_UST_UID_CHANNEL_READ_TIMER      CONFIG_DEFAULT_UST_UID_CHANNEL_READ_TIMER
@@ -309,6 +315,15 @@
 /* Default LTTng MI XML namespace. */
 #define DEFAULT_LTTNG_MI_NAMESPACE             "http://lttng.org/xml/ns/lttng-mi"
 
+/* Default thread stack size; the default mandated by pthread_create(3) */
+#define DEFAULT_LTTNG_THREAD_STACK_SIZE                2097152
+
+/* Default maximal size of message notification channel message payloads. */
+#define DEFAULT_MAX_NOTIFICATION_CLIENT_MESSAGE_PAYLOAD_SIZE   65536
+
+/* Default maximal size of message notification channel message payloads. */
+#define DEFAULT_CLIENT_MAX_QUEUED_NOTIFICATIONS_COUNT          100
+
 /*
  * Returns the default subbuf size.
  *
@@ -354,4 +369,16 @@ size_t default_get_ust_pid_channel_subbuf_size(void);
 LTTNG_HIDDEN
 size_t default_get_ust_uid_channel_subbuf_size(void);
 
+/*
+ * Get the default pthread_attr to use on thread creation.
+ *
+ * Some libc, such as musl, don't honor the limit set for the stack size and use
+ * their own empirically chosen static value. This function checks if the
+ * current stack size is smaller than the stack size limit and if so returns a
+ * pthread_attr_t pointer where the thread stack size is set to the soft stack
+ * size limit.
+ */
+LTTNG_HIDDEN
+pthread_attr_t *default_pthread_attr(void);
+
 #endif /* _DEFAULTS_H */