Fix: Define __STDC_LIMIT_MACROS to fix C++ builds

[lttng-tools.git] / include / lttng / lttng.h

diff --git a/include/lttng/lttng.h b/include/lttng/lttng.h
index d2ce75fb14c75ad5d9ca79f60da4c93574d413d7..a918ff2f229230e6bbe9f3e583fbe3ef6810e9db 100644 (file)
--- a/include/lttng/lttng.h
+++ b/include/lttng/lttng.h
@@ -23,7 +23,17 @@
 #define LTTNG_H
 
 #include <limits.h>
+/*
+ * Necessary to include the fixed width type limits on glibc versions older
+ * than 2.18 when building with a C++ compiler.
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS
 #include <stdint.h>
+#undef __STDC_LIMIT_MACROS
+#else /* #ifndef __STDC_LIMIT_MACROS */
+#include <stdint.h>
+#endif /* #else #ifndef __STDC_LIMIT_MACROS */
 #include <sys/types.h>
 
 /* Error codes that can be returned by API calls */
@@ -126,6 +136,7 @@ enum lttng_event_context_type {
        LTTNG_EVENT_CONTEXT_VPPID             = 9,
        LTTNG_EVENT_CONTEXT_PTHREAD_ID        = 10,
        LTTNG_EVENT_CONTEXT_HOSTNAME          = 11,
+       LTTNG_EVENT_CONTEXT_IP                = 12,
 };
 
 enum lttng_calibrate_type {
@@ -141,6 +152,7 @@ enum lttng_health_component {
        LTTNG_HEALTH_CONSUMER,
        LTTNG_HEALTH_HT_CLEANUP,
        LTTNG_HEALTH_APP_MANAGE_NOTIFY,
+       LTTNG_HEALTH_APP_REG_DISPATCH,
        LTTNG_HEALTH_ALL,
 };
 
@@ -324,12 +336,13 @@ struct lttng_calibrate {
  *
  * The structures should be initialized to zero before use.
  */
-#define LTTNG_SESSION_PADDING1             16
+#define LTTNG_SESSION_PADDING1             12
 struct lttng_session {
        char name[NAME_MAX];
        /* The path where traces are written */
        char path[PATH_MAX];
        uint32_t enabled;       /* enabled/started: 1, disabled/stopped: 0 */
+       uint32_t snapshot_mode;
 
        char padding[LTTNG_SESSION_PADDING1];
 };
@@ -388,6 +401,21 @@ extern void lttng_destroy_handle(struct lttng_handle *handle);
  */
 extern int lttng_create_session(const char *name, const char *url);
 
+/*
+ * Create a tracing session that will exclusively be used for snapshot meaning
+ * the session will be in no output mode and every channel enabled for that
+ * session will be set in overwrite mode and in mmap output since splice is not
+ * supported.
+ *
+ * If an url is given, it will be used to create a default snapshot output
+ * using it as a destination. If NULL, no output will be defined and an
+ * add-output call will be needed.
+ *
+ * Name can't be NULL.
+ */
+extern int lttng_create_session_snapshot(const char *name,
+               const char *snapshot_url);
+
 /*
  * Destroy a tracing session.
  *