#include <lttng/ust-events.h>
#include <urcu/hlist.h>
+#include "ust-dynamic-type.h"
+
+struct lttng_ctx_value {
+ enum lttng_ust_dynamic_type sel;
+ union {
+ int64_t s64;
+ uint64_t u64;
+ const char *str;
+ double d;
+ } u;
+};
+
+struct lttng_perf_counter_field;
+
+#define LTTNG_UST_CTX_FIELD_PADDING 40
+struct lttng_ctx_field {
+ struct lttng_ust_event_field event_field;
+ size_t (*get_size)(struct lttng_ctx_field *field, size_t offset);
+ void (*record)(struct lttng_ctx_field *field,
+ struct lttng_ust_lib_ring_buffer_ctx *ctx,
+ struct lttng_channel *chan);
+ void (*get_value)(struct lttng_ctx_field *field,
+ struct lttng_ctx_value *value);
+ union {
+ struct lttng_perf_counter_field *perf_counter;
+ char padding[LTTNG_UST_CTX_FIELD_PADDING];
+ } u;
+ void (*destroy)(struct lttng_ctx_field *field);
+ char *field_name; /* Has ownership, dynamically allocated. */
+};
+
+#define LTTNG_UST_CTX_PADDING 20
+struct lttng_ctx {
+ struct lttng_ctx_field *fields;
+ unsigned int nr_fields;
+ unsigned int allocated_fields;
+ unsigned int largest_align;
+ char padding[LTTNG_UST_CTX_PADDING];
+};
+
struct lttng_ust_context_provider {
char *name;
size_t (*get_size)(struct lttng_ctx_field *field, size_t offset);