Check if channel has closed stream in channel poll for CPU hotplug

[deliverable/lttng-modules.git] / ltt-events.h

diff --git a/ltt-events.h b/ltt-events.h
index f3536cec1e76645a87f2da30fc9e394711ae0a16..304bcb69989b406d8c3b02d76f3320ca5321324c 100644 (file)
--- a/ltt-events.h
+++ b/ltt-events.h
@@ -12,8 +12,8 @@
  */
 
 #include <linux/list.h>
-#include <linux/uuid.h>
 #include <linux/kprobes.h>
+#include "wrapper/uuid.h"
 #include "ltt-debugfs-abi.h"
 
 #undef is_signed_type
@@ -191,6 +191,7 @@ struct ltt_channel_ops {
                                unsigned int read_timer_interval);
        void (*channel_destroy)(struct channel *chan);
        struct lib_ring_buffer *(*buffer_read_open)(struct channel *chan);
+       int (*buffer_has_read_closed_stream)(struct channel *chan);
        void (*buffer_read_close)(struct lib_ring_buffer *buf);
        int (*event_reserve)(struct lib_ring_buffer_ctx *ctx,
                             uint32_t event_id);
@@ -273,6 +274,7 @@ int ltt_event_disable(struct ltt_event *event);
 void ltt_transport_register(struct ltt_transport *transport);
 void ltt_transport_unregister(struct ltt_transport *transport);
 
+void synchronize_trace(void);
 int ltt_debugfs_abi_init(void);
 void ltt_debugfs_abi_exit(void);
 
@@ -283,6 +285,7 @@ void ltt_event_put(const struct lttng_event_desc *desc);
 int ltt_probes_init(void);
 void ltt_probes_exit(void);
 struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
+int lttng_find_context(struct lttng_ctx *ctx, const char *name);
 void lttng_remove_context_field(struct lttng_ctx **ctx,
                                struct lttng_ctx_field *field);
 void lttng_destroy_context(struct lttng_ctx *ctx);
@@ -295,10 +298,21 @@ int lttng_add_tid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_ppid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_vppid_to_ctx(struct lttng_ctx **ctx);
+#ifdef CONFIG_PERF_EVENTS
 int lttng_add_perf_counter_to_ctx(uint32_t type,
                                  uint64_t config,
                                  const char *name,
                                  struct lttng_ctx **ctx);
+#else
+static inline
+int lttng_add_perf_counter_to_ctx(uint32_t type,
+                                 uint64_t config,
+                                 const char *name,
+                                 struct lttng_ctx **ctx)
+{
+       return -ENOSYS;
+}
+#endif
 
 #ifdef CONFIG_KPROBES
 int lttng_kprobes_register(const char *name,
@@ -358,4 +372,8 @@ void lttng_ftrace_destroy_private(struct ltt_event *event)
 
 extern const struct file_operations lttng_tracepoint_list_fops;
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
+#define TRACEPOINT_HAS_DATA_ARG
+#endif
+
 #endif /* _LTT_EVENTS_H */