Add ctf_enum_auto() for autoincrementing enumeration values

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

diff --git a/lttng-events.h b/lttng-events.h
index 1b4f39c40ce22060e068f13bf31754acc738faeb..42a7b24bbb35f103e771d8488cf11ffc6273f265 100644 (file)
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -27,9 +27,10 @@
 #include <linux/list.h>
 #include <linux/kprobes.h>
 #include <linux/kref.h>
-#include "wrapper/uuid.h"
-#include "lttng-abi.h"
-#include "lttng-abi-old.h"
+#include <wrapper/uuid.h>
+#include <lttng-tracer.h>
+#include <lttng-abi.h>
+#include <lttng-abi-old.h>
 
 #define lttng_is_signed_type(type)     (((type)(-1)) < 0)
 
@@ -43,17 +44,19 @@ struct lib_ring_buffer_config;
 
 /* Type description */
 
-/* Update the astract_types name table in lttng-types.c along with this enum */
 enum abstract_types {
        atype_integer,
        atype_enum,
        atype_array,
        atype_sequence,
        atype_string,
+       atype_struct,
+       atype_array_compound,           /* Array of compound types. */
+       atype_sequence_compound,        /* Sequence of compound types. */
+       atype_variant,
        NR_ABSTRACT_TYPES,
 };
 
-/* Update the string_encodings name table in lttng-types.c along with this enum */
 enum lttng_string_encodings {
        lttng_encode_none = 0,
        lttng_encode_UTF8 = 1,
@@ -66,9 +69,17 @@ enum channel_type {
        METADATA_CHANNEL,
 };
 
+struct lttng_enum_value {
+       unsigned long long value;
+       unsigned int signedness:1;
+};
+
 struct lttng_enum_entry {
-       unsigned long long start, end;  /* start and end are inclusive */
+       struct lttng_enum_value start, end;     /* start and end are inclusive */
        const char *string;
+       struct {
+               unsigned int is_auto:1;
+       } options;
 };
 
 #define __type_integer(_type, _size, _alignment, _signedness,  \
@@ -98,7 +109,8 @@ struct lttng_integer_type {
 union _lttng_basic_type {
        struct lttng_integer_type integer;
        struct {
-               const char *name;
+               const struct lttng_enum_desc *desc;     /* Enumeration mapping */
+               struct lttng_integer_type container_type;
        } enumeration;
        struct {
                enum lttng_string_encodings encoding;
@@ -126,14 +138,30 @@ struct lttng_type {
                        struct lttng_basic_type elem_type;
                        unsigned int elem_alignment;    /* alignment override */
                } sequence;
+               struct {
+                       uint32_t nr_fields;
+                       struct lttng_event_field *fields; /* Array of fields. */
+               } _struct;
+               struct {
+                       struct lttng_type *elem_type;
+                       unsigned int length;            /* num. elems. */
+               } array_compound;
+               struct {
+                       struct lttng_type *elem_type;
+                       const char *length_name;
+               } sequence_compound;
+               struct {
+                       const char *tag_name;
+                       struct lttng_event_field *choices; /* Array of fields. */
+                       uint32_t nr_choices;
+               } variant;
        } u;
 };
 
-struct lttng_enum {
+struct lttng_enum_desc {
        const char *name;
-       struct lttng_type container_type;
        const struct lttng_enum_entry *entries;
-       unsigned int len;
+       unsigned int nr_entries;
 };
 
 /* Event field description */
@@ -434,6 +462,14 @@ struct lttng_metadata_stream {
        uint64_t version;               /* Current version of the metadata cache */
 };
 
+#define LTTNG_DYNAMIC_LEN_STACK_SIZE   128
+
+struct lttng_dynamic_len_stack {
+       size_t stack[LTTNG_DYNAMIC_LEN_STACK_SIZE];
+       size_t offset;
+};
+
+DECLARE_PER_CPU(struct lttng_dynamic_len_stack, lttng_dynamic_len_stack);
 
 /*
  * struct lttng_pid_tracker declared in header due to deferencing of *v
@@ -500,6 +536,7 @@ int lttng_session_enable(struct lttng_session *session);
 int lttng_session_disable(struct lttng_session *session);
 void lttng_session_destroy(struct lttng_session *session);
 int lttng_session_metadata_regenerate(struct lttng_session *session);
+int lttng_session_statedump(struct lttng_session *session);
 void metadata_cache_destroy(struct kref *kref);
 
 struct lttng_channel *lttng_channel_create(struct lttng_session *session,
@@ -615,6 +652,8 @@ int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
 void lttng_enabler_event_link_bytecode(struct lttng_event *event,
                struct lttng_enabler *enabler);
 
+int lttng_probes_init(void);
+
 extern struct lttng_ctx *lttng_static_ctx;
 
 int lttng_context_init(void);