add support for channel overwrite and non-collection

[ust.git] / libust / channels.h

diff --git a/libust/channels.h b/libust/channels.h
index e92e6cced4b31c119927757c317899d2f860487d..693bf82bedc9bac9208abd66d491fd878ed9efb4 100644 (file)
--- a/libust/channels.h
+++ b/libust/channels.h
@@ -39,6 +39,8 @@ struct ust_channel {
        int *buf_struct_shmids;
        struct ust_buffer **buf;
        int overwrite:1;
+       /* whether collection is requested upon trace start */
+       int request_collection:1;
        int active:1;
        unsigned int n_subbufs_order;
        unsigned long commit_count_mask;        /*
@@ -80,9 +82,13 @@ extern const char *ltt_channels_get_name_from_index(unsigned int index);
 extern int ltt_channels_get_index_from_name(const char *name);
 extern struct ust_channel *ltt_channels_trace_alloc(unsigned int *nr_channels,
                                                    int overwrite,
+                                                   int request_collection,
                                                    int active);
 extern void ltt_channels_trace_free(struct ust_channel *channels);
 extern int _ltt_channels_get_event_id(const char *channel, const char *name);
 extern int ltt_channels_get_event_id(const char *channel, const char *name);
 
+extern int ust_channels_overwrite_by_default;
+extern int ust_channels_request_collection_by_default;
+
 #endif /* UST_CHANNELS_H */