X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Ftrace-kernel.h;h=934aaffe89f5174015a3fe4d9637eeeabbd818bc;hp=5a8bcdbd4418c496ab3aa72fcb931c179814d71f;hb=850767541647c102a299d7fbc39c97555ac70224;hpb=d14d33bf091e72b23b1f90ea18a0a01bed098b76 diff --git a/src/bin/lttng-sessiond/trace-kernel.h b/src/bin/lttng-sessiond/trace-kernel.h index 5a8bcdbd4..934aaffe8 100644 --- a/src/bin/lttng-sessiond/trace-kernel.h +++ b/src/bin/lttng-sessiond/trace-kernel.h @@ -18,11 +18,14 @@ #ifndef _LTT_TRACE_KERNEL_H #define _LTT_TRACE_KERNEL_H -#include #include #include #include +#include +#include + +#include "consumer.h" /* Kernel event list */ struct ltt_kernel_event_list { @@ -43,11 +46,6 @@ struct ltt_kernel_channel_list { struct ltt_kernel_event { int fd; int enabled; - /* - * TODO: need internal representation to support more than a - * single context. - */ - struct lttng_kernel_context *ctx; struct lttng_kernel_event *event; struct cds_list_head list; }; @@ -56,7 +54,6 @@ struct ltt_kernel_event { struct ltt_kernel_channel { int fd; int enabled; - char *pathname; unsigned int stream_count; unsigned int event_count; /* @@ -68,20 +65,25 @@ struct ltt_kernel_channel { struct ltt_kernel_event_list events_list; struct ltt_kernel_stream_list stream_list; struct cds_list_head list; + /* Session pointer which has a reference to this object. */ + struct ltt_kernel_session *session; }; /* Metadata */ struct ltt_kernel_metadata { int fd; - char *pathname; struct lttng_channel *conf; }; /* Channel stream */ struct ltt_kernel_stream { int fd; - char *pathname; int state; + int cpu; + /* Format is %s_%d respectively channel name and CPU number. */ + char name[DEFAULT_STREAM_NAME_LEN]; + uint64_t tracefile_size; + uint64_t tracefile_count; struct cds_list_head list; }; @@ -90,15 +92,29 @@ struct ltt_kernel_session { int fd; int metadata_stream_fd; int consumer_fds_sent; - int consumer_fd; unsigned int channel_count; unsigned int stream_count_global; - char *trace_path; struct ltt_kernel_metadata *metadata; struct ltt_kernel_channel_list channel_list; /* UID/GID of the user owning the session */ uid_t uid; gid_t gid; + /* + * Two consumer_output object are needed where one is needed for the + * current output object and the second one is the temporary object used to + * store URI being set by the lttng_set_consumer_uri call. Once + * lttng_enable_consumer is called, the two pointers are swapped. + */ + struct consumer_output *consumer; + struct consumer_output *tmp_consumer; + /* Tracing session id */ + uint64_t id; + /* Session is started and active */ + unsigned int started; + /* Tell or not if the session has to output the traces. */ + unsigned int output_traces; + unsigned int snapshot_mode; + unsigned int has_non_default_channel; }; /* @@ -112,11 +128,13 @@ struct ltt_kernel_channel *trace_kernel_get_channel_by_name( /* * Create functions malloc() the data structure. */ -struct ltt_kernel_session *trace_kernel_create_session(char *path); -struct ltt_kernel_channel *trace_kernel_create_channel(struct lttng_channel *chan, char *path); +struct ltt_kernel_session *trace_kernel_create_session(void); +struct ltt_kernel_channel *trace_kernel_create_channel( + struct lttng_channel *chan); struct ltt_kernel_event *trace_kernel_create_event(struct lttng_event *ev); -struct ltt_kernel_metadata *trace_kernel_create_metadata(char *path); -struct ltt_kernel_stream *trace_kernel_create_stream(void); +struct ltt_kernel_metadata *trace_kernel_create_metadata(void); +struct ltt_kernel_stream *trace_kernel_create_stream(const char *name, + unsigned int count); /* * Destroy functions free() the data structure and remove from linked list if