#include <babeltrace/ctf-ir/visitor.h>
#include <babeltrace/values.h>
#include <babeltrace/graph/notification.h>
+#include <babeltrace/types.h>
#include <stdint.h>
#ifdef __cplusplus
A trace class has the following properties:
- A \b name.
-- A <strong>default byte order</strong>: all the
+- A <strong>native byte order</strong>: all the
\link ctfirfieldtypes field types\endlink eventually part of the trace
class with a byte order set to #BT_CTF_BYTE_ORDER_NATIVE have this
"real" byte order.
+- A \b UUID.
- An \b environment, which is a custom key-value mapping. Keys are
strings and values can be strings or integers.
- Adding a CTF IR clock class to it with bt_ctf_trace_add_clock_class().
- \link refs Reference counting\endlink.
-You can add a custom listener with bt_ctf_trace_add_listener() to get
-notified if anything changes in a trace class, that is, if an event
-class is added to one of its stream class, if a stream class is added,
-or if a clock class is added.
-
@sa ctfirstreamclass
@sa ctfireventclass
@sa ctfirclockclass
@brief Creates a default CTF IR trace class.
On success, the trace packet header field type of the created trace
-class has the following fields:
-
-- <code>magic</code>: a 32-bit unsigned integer field type.
-- <code>uuid</code>: an array field type of 16 8-bit unsigned integer
- field types.
-- <code>stream_id</code>: a 32-bit unsigned integer field type.
-
-You can modify this default trace packet header field type after the
-trace class is created with bt_ctf_trace_set_packet_header_type().
+class is an empty structure field type. You can modify this default
+trace packet header field type after the trace class is created with
+bt_ctf_trace_get_packet_header_type() and
+bt_ctf_trace_set_packet_header_type().
The created trace class has the following initial properties:
- <strong>Name</strong>: none. You can set a name
with bt_ctf_trace_set_name().
-- <strong>Default byte order</strong>: #BT_CTF_BYTE_ORDER_NATIVE. You
- can set a default byte order with bt_ctf_trace_set_native_byte_order().
+- <strong>UUID</strong>: none. You can set a UUID with
+ bt_ctf_trace_set_uuid().
+- <strong>Native byte order</strong>: #BT_CTF_BYTE_ORDER_NATIVE. You
+ can set a native byte order with bt_ctf_trace_set_native_byte_order().
- Note that you \em must set the default byte order if any field type
+ Note that you \em must set the native byte order if any field type
contained in the created trace class, in its stream classes, or in
its event classes, has a byte order set to #BT_CTF_BYTE_ORDER_NATIVE.
- <strong>Environment</strong>: empty. You can add environment entries
const char *name);
/**
-@brief Returns the default byte order of the CTF IR trace class
+@brief Returns the native byte order of the CTF IR trace class
\p trace_class.
@param[in] trace_class Trace class of which to get the default byte
order.
-@returns Default byte order of trace class
- \p trace_class, or #BT_CTF_BYTE_ORDER_UNKNOWN
- on error.
+@returns Native byte order of \p trace_class,
+ or #BT_CTF_BYTE_ORDER_UNKNOWN on error.
@prenotnull{trace_class}
@postrefcountsame{trace_class}
-@sa bt_ctf_trace_set_name(): Sets the name of a given trace class.
+@sa bt_ctf_trace_set_native_byte_order(): Sets the native byte order of
+ a given trace class.
*/
-extern enum bt_ctf_byte_order bt_ctf_trace_get_byte_order(
+extern enum bt_ctf_byte_order bt_ctf_trace_get_native_byte_order(
struct bt_ctf_trace *trace_class);
/**
-@brief Sets the default byte order of the CTF IR trace class
+@brief Sets the native byte order of the CTF IR trace class
\p trace_class to \p native_byte_order.
\p native_byte_order \em must be one of:
- #BT_CTF_BYTE_ORDER_BIG_ENDIAN
- #BT_CTF_BYTE_ORDER_NETWORK
-@param[in] trace_class Trace class of which to set the default byte
+@param[in] trace_class Trace class of which to set the native byte
order.
-@param[in] native_byte_order Default byte order of the trace class.
+@param[in] native_byte_order Native byte order of the trace class.
@returns 0 on success, or a negative value on error.
@prenotnull{trace_class}
-@prenotnull{name}
@prehot{trace_class}
@pre \p native_byte_order is either #BT_CTF_BYTE_ORDER_LITTLE_ENDIAN,
#BT_CTF_BYTE_ORDER_BIG_ENDIAN, or
#BT_CTF_BYTE_ORDER_NETWORK.
@postrefcountsame{trace_class}
-@sa bt_ctf_trace_get_name(): Returns the name of a given trace class.
+@sa bt_ctf_trace_get_native_byte_order(): Returns the native byte order of a
+ given trace class.
*/
extern int bt_ctf_trace_set_native_byte_order(struct bt_ctf_trace *trace_class,
enum bt_ctf_byte_order native_byte_order);
+/**
+@brief Returns the UUID of the CTF IR trace class \p trace_class.
+
+On success, the return value is an array of 16 bytes.
+
+@param[in] trace_class Trace class of which to get the UUID.
+@returns UUID of trace class \p trace_class, or
+ \c NULL if \p trace_class has no UUID or on error.
+
+@prenotnull{trace_class}
+@postrefcountsame{trace_class}
+
+@sa bt_ctf_trace_set_uuid(): Sets the UUID of a given trace class.
+*/
+extern const unsigned char *bt_ctf_trace_get_uuid(
+ struct bt_ctf_trace *trace_class);
+
+/**
+@brief Sets the UUID of the CTF IR trace class \p trace_class to
+ \p uuid.
+
+\p uuid \em must be an array of 16 bytes.
+
+@param[in] trace_class Trace class of which to set the UUID.
+@param[in] uuid UUID of the \p trace_class (copied on
+ success).
+@returns 0 on success, or a negative value on error.
+
+@prenotnull{trace_class}
+@prenotnull{uuid}
+@prehot{trace_class}
+@pre \p uuid is an array of 16 bytes.
+@postrefcountsame{trace_class}
+
+@sa bt_ctf_trace_get_uuid(): Returns the UUID of a given trace class.
+*/
+extern int bt_ctf_trace_set_uuid(struct bt_ctf_trace *trace_class,
+ const unsigned char *uuid);
+
/**
@brief Returns the number of entries contained in the environment of
the CTF IR trace class \p trace_class.
streams, stream classes, or clock classes. A static class is always
frozen.
-This function returns \c true if bt_ctf_trace_set_is_static() was
+This function returns #BT_TRUE if bt_ctf_trace_set_is_static() was
previously called on it.
@param[in] trace_class Trace class to check.
-@returns \c true if \p trace_class is static,
+@returns #BT_TRUE if \p trace_class is static,
@sa bt_ctf_trace_set_is_static(): Makes a trace class static.
*/
-extern bool bt_ctf_trace_is_static(struct bt_ctf_trace *trace_class);
+extern bt_bool bt_ctf_trace_is_static(struct bt_ctf_trace *trace_class);
/**
@brief Makes the CTF IR trace class \p trace_class static.
/** @} */
-/*
- * bt_ctf_trace_get_metadata_string: get metadata string.
- *
- * Get the trace's TSDL metadata. The caller assumes the ownership of the
- * returned string.
- *
- * @param trace Trace instance.
- *
- * Returns the metadata string on success, NULL on error.
- */
-extern char *bt_ctf_trace_get_metadata_string(struct bt_ctf_trace *trace);
-
#ifdef __cplusplus
}
#endif
projects / babeltrace.git / blobdiff