Add a packet sequence number

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

diff --git a/lttng-events.h b/lttng-events.h
index d9fdd0cf091b117d68f5cfe0de0edf99af1c835a..d2a039e8f664cacf5aea2d91b86aafdd7e31acaa 100644 (file)
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -138,6 +138,8 @@ struct lttng_enum {
 struct lttng_event_field {
        const char *name;
        struct lttng_type type;
+       unsigned int nowrite:1,         /* do not write into trace */
+                       user:1;         /* fetch from user-space */
 };
 
 union lttng_ctx_value {
@@ -356,6 +358,9 @@ struct lttng_channel_ops {
        int (*current_timestamp) (const struct lib_ring_buffer_config *config,
                        struct lib_ring_buffer *bufb,
                        uint64_t *ts);
+       int (*sequence_number) (const struct lib_ring_buffer_config *config,
+                       struct lib_ring_buffer *bufb,
+                       uint64_t *seq);
 };
 
 struct lttng_transport {
@@ -413,7 +418,6 @@ struct lttng_metadata_stream {
        wait_queue_head_t read_wait;    /* Reader buffer-level wait queue */
        struct list_head list;          /* Stream list */
        struct lttng_transport *transport;
-       struct mutex lock;
 };
 
 
@@ -459,6 +463,7 @@ struct lttng_metadata_cache {
        struct kref refcount;           /* Metadata cache usage */
        struct list_head metadata_stream;       /* Metadata stream list */
        uuid_le uuid;                   /* Trace session unique ID (copy) */
+       struct mutex lock;
 };
 
 void lttng_lock_sessions(void);
@@ -555,7 +560,6 @@ int lttng_syscall_filter_disable(struct lttng_channel *chan,
                const char *name);
 long lttng_channel_syscall_mask(struct lttng_channel *channel,
                struct lttng_kernel_syscall_mask __user *usyscall_mask);
-int lttng_abi_syscall_list(void);
 #else
 static inline int lttng_syscalls_register(struct lttng_channel *chan, void *filter)
 {
@@ -567,37 +571,30 @@ static inline int lttng_syscalls_unregister(struct lttng_channel *chan)
        return 0;
 }
 
-static inline
-int lttng_syscall_filter_enable(struct lttng_channel *chan,
+static inline int lttng_syscall_filter_enable(struct lttng_channel *chan,
                const char *name)
 {
        return -ENOSYS;
 }
 
-static inline
-int lttng_syscall_filter_disable(struct lttng_channel *chan,
+static inline int lttng_syscall_filter_disable(struct lttng_channel *chan,
                const char *name)
 {
        return -ENOSYS;
 }
 
-static inline
-long lttng_channel_syscall_mask(struct lttng_channel *channel,
+static inline long lttng_channel_syscall_mask(struct lttng_channel *channel,
                struct lttng_kernel_syscall_mask __user *usyscall_mask)
 {
        return -ENOSYS;
 }
-
-static inline
-int lttng_abi_syscall_list(void)
-{
-       return -ENOSYS;
-}
 #endif
 
 void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime);
 int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
                struct lttng_kernel_filter_bytecode __user *bytecode);
+void lttng_enabler_event_link_bytecode(struct lttng_event *event,
+               struct lttng_enabler *enabler);
 
 extern struct lttng_ctx *lttng_static_ctx;
 
@@ -611,6 +608,7 @@ void lttng_remove_context_field(struct lttng_ctx **ctx,
                                struct lttng_ctx_field *field);
 void lttng_destroy_context(struct lttng_ctx *ctx);
 int lttng_add_pid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_cpu_id_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_procname_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_prio_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_nice_to_ctx(struct lttng_ctx **ctx);