/**
* Binary class reader API status codes.
*/
-enum bt_bfcr_status {
- /** Out of memory. */
- BT_BFCR_STATUS_ENOMEM = -5,
- /**
- * The binary stream reader reached the end of the user-provided
- * buffer, but data is still needed to finish decoding the
- * requested class.
- *
- * The user needs to call bt_bfcr_continue() as long as
- * #BT_BFCR_STATUS_EOF is returned to complete the decoding
- * process of a given class.
- */
- BT_BFCR_STATUS_EOF = 1,
+enum bt_bfcr_status
+{
+ /** Out of memory. */
+ BT_BFCR_STATUS_ENOMEM = -5,
+ /**
+ * The binary stream reader reached the end of the user-provided
+ * buffer, but data is still needed to finish decoding the
+ * requested class.
+ *
+ * The user needs to call bt_bfcr_continue() as long as
+ * #BT_BFCR_STATUS_EOF is returned to complete the decoding
+ * process of a given class.
+ */
+ BT_BFCR_STATUS_EOF = 1,
- /** Invalid argument. */
- BT_BFCR_STATUS_INVAL = -3,
+ /** Invalid argument. */
+ BT_BFCR_STATUS_INVAL = -3,
- /** General error. */
- BT_BFCR_STATUS_ERROR = -1,
+ /** General error. */
+ BT_BFCR_STATUS_ERROR = -1,
- /** Everything okay. */
- BT_BFCR_STATUS_OK = 0,
+ /** Everything okay. */
+ BT_BFCR_STATUS_OK = 0,
};
/** Field class reader. */
struct bt_bfcr;
-typedef enum bt_bfcr_status (* bt_bfcr_unsigned_int_cb_func)(uint64_t,
- struct ctf_field_class *, void *);
+typedef enum bt_bfcr_status (*bt_bfcr_unsigned_int_cb_func)(uint64_t, struct ctf_field_class *,
+ void *);
/*
* Field class reader user callback functions.
*/
-struct bt_bfcr_cbs {
- /**
- * Field class callback functions.
- *
- * This CTF binary class reader is event-driven. The following
- * functions are called during the decoding process, either when
- * a compound class begins/ends, or when a basic class is
- * completely decoded (along with its value).
- *
- * Each function also receives the CTF field class associated
- * with the call, and user data (registered to the class reader
- * calling them).
- *
- * Actual trace IR fields are \em not created here; this would
- * be the responsibility of a class reader's user (the provider
- * of those callback functions).
- *
- * All the class callback functions return one of the following
- * values:
- *
- * - <b>#BT_BFCR_STATUS_OK</b>: Everything is okay;
- * continue the decoding process.
- * - <b>#BT_BFCR_STATUS_ERROR</b>: General error (reported
- * to class reader's user).
- *
- * Any member of this structure may be set to \c NULL, should
- * a specific message be not needed.
- */
- struct {
- /**
- * Called when a signed integer class is completely
- * decoded. This could also be the supporting signed
- * integer class of an enumeration class (\p class will
- * indicate this).
- *
- * @param value Signed integer value
- * @param class Integer or enumeration class
- * @param data User data
- * @returns #BT_BFCR_STATUS_OK or
- * #BT_BFCR_STATUS_ERROR
- */
- enum bt_bfcr_status (* signed_int)(int64_t value,
- struct ctf_field_class *cls, void *data);
+struct bt_bfcr_cbs
+{
+ /**
+ * Field class callback functions.
+ *
+ * This CTF binary class reader is event-driven. The following
+ * functions are called during the decoding process, either when
+ * a compound class begins/ends, or when a basic class is
+ * completely decoded (along with its value).
+ *
+ * Each function also receives the CTF field class associated
+ * with the call, and user data (registered to the class reader
+ * calling them).
+ *
+ * Actual trace IR fields are \em not created here; this would
+ * be the responsibility of a class reader's user (the provider
+ * of those callback functions).
+ *
+ * All the class callback functions return one of the following
+ * values:
+ *
+ * - <b>#BT_BFCR_STATUS_OK</b>: Everything is okay;
+ * continue the decoding process.
+ * - <b>#BT_BFCR_STATUS_ERROR</b>: General error (reported
+ * to class reader's user).
+ *
+ * Any member of this structure may be set to \c NULL, should
+ * a specific message be not needed.
+ */
+ struct
+ {
+ /**
+ * Called when a signed integer class is completely
+ * decoded. This could also be the supporting signed
+ * integer class of an enumeration class (\p class will
+ * indicate this).
+ *
+ * @param value Signed integer value
+ * @param class Integer or enumeration class
+ * @param data User data
+ * @returns #BT_BFCR_STATUS_OK or
+ * #BT_BFCR_STATUS_ERROR
+ */
+ enum bt_bfcr_status (*signed_int)(int64_t value, struct ctf_field_class *cls, void *data);
- /**
- * Called when an unsigned integer class is completely
- * decoded. This could also be the supporting signed
- * integer class of an enumeration class (\p class will
- * indicate this).
- *
- * @param value Unsigned integer value
- * @param class Integer or enumeration class
- * @param data User data
- * @returns #BT_BFCR_STATUS_OK or
- * #BT_BFCR_STATUS_ERROR
- */
- bt_bfcr_unsigned_int_cb_func unsigned_int;
+ /**
+ * Called when an unsigned integer class is completely
+ * decoded. This could also be the supporting signed
+ * integer class of an enumeration class (\p class will
+ * indicate this).
+ *
+ * @param value Unsigned integer value
+ * @param class Integer or enumeration class
+ * @param data User data
+ * @returns #BT_BFCR_STATUS_OK or
+ * #BT_BFCR_STATUS_ERROR
+ */
+ bt_bfcr_unsigned_int_cb_func unsigned_int;
- /**
- * Called when a floating point number class is
- * completely decoded.
- *
- * @param value Floating point number value
- * @param class Floating point number class
- * @param data User data
- * @returns #BT_BFCR_STATUS_OK or
- * #BT_BFCR_STATUS_ERROR
- */
- enum bt_bfcr_status (* floating_point)(double value,
- struct ctf_field_class *cls, void *data);
+ /**
+ * Called when a floating point number class is
+ * completely decoded.
+ *
+ * @param value Floating point number value
+ * @param class Floating point number class
+ * @param data User data
+ * @returns #BT_BFCR_STATUS_OK or
+ * #BT_BFCR_STATUS_ERROR
+ */
+ enum bt_bfcr_status (*floating_point)(double value, struct ctf_field_class *cls,
+ void *data);
- /**
- * Called when a string class begins.
- *
- * All the following user callback function calls will
- * be made to bt_bfcr_cbs::classes::string(), each of
- * them providing one substring of the complete string
- * class's value.
- *
- * @param class Beginning string class
- * @param data User data
- * @returns #BT_BFCR_STATUS_OK or
- * #BT_BFCR_STATUS_ERROR
- */
- enum bt_bfcr_status (* string_begin)(
- struct ctf_field_class *cls, void *data);
+ /**
+ * Called when a string class begins.
+ *
+ * All the following user callback function calls will
+ * be made to bt_bfcr_cbs::classes::string(), each of
+ * them providing one substring of the complete string
+ * class's value.
+ *
+ * @param class Beginning string class
+ * @param data User data
+ * @returns #BT_BFCR_STATUS_OK or
+ * #BT_BFCR_STATUS_ERROR
+ */
+ enum bt_bfcr_status (*string_begin)(struct ctf_field_class *cls, void *data);
- /**
- * Called when a string class's substring is decoded
- * (between a call to bt_bfcr_cbs::classes::string_begin()
- * and a call to bt_bfcr_cbs::classes::string_end()).
- *
- * @param value String value (\em not null-terminated)
- * @param len String value length
- * @param class String class
- * @param data User data
- * @returns #BT_BFCR_STATUS_OK or
- * #BT_BFCR_STATUS_ERROR
- */
- enum bt_bfcr_status (* string)(const char *value,
- size_t len, struct ctf_field_class *cls,
- void *data);
+ /**
+ * Called when a string class's substring is decoded
+ * (between a call to bt_bfcr_cbs::classes::string_begin()
+ * and a call to bt_bfcr_cbs::classes::string_end()).
+ *
+ * @param value String value (\em not null-terminated)
+ * @param len String value length
+ * @param class String class
+ * @param data User data
+ * @returns #BT_BFCR_STATUS_OK or
+ * #BT_BFCR_STATUS_ERROR
+ */
+ enum bt_bfcr_status (*string)(const char *value, size_t len, struct ctf_field_class *cls,
+ void *data);
- /**
- * Called when a string class ends.
- *
- * @param class Ending string class
- * @param data User data
- * @returns #BT_BFCR_STATUS_OK or
- * #BT_BFCR_STATUS_ERROR
- */
- enum bt_bfcr_status (* string_end)(
- struct ctf_field_class *cls, void *data);
+ /**
+ * Called when a string class ends.
+ *
+ * @param class Ending string class
+ * @param data User data
+ * @returns #BT_BFCR_STATUS_OK or
+ * #BT_BFCR_STATUS_ERROR
+ */
+ enum bt_bfcr_status (*string_end)(struct ctf_field_class *cls, void *data);
- /**
- * Called when a compound class begins.
- *
- * All the following class callback function calls will
- * signal sequential elements of this compound class,
- * until the next corresponding
- * bt_bfcr_cbs::classes::compound_end() is called.
- *
- * If \p class is a variant class, then only one class
- * callback function call will follow before the call to
- * bt_bfcr_cbs::classes::compound_end(). This single
- * call indicates the selected class of this variant
- * class.
- *
- * @param class Beginning compound class
- * @param data User data
- * @returns #BT_BFCR_STATUS_OK or
- * #BT_BFCR_STATUS_ERROR
- */
- enum bt_bfcr_status (* compound_begin)(
- struct ctf_field_class *cls, void *data);
+ /**
+ * Called when a compound class begins.
+ *
+ * All the following class callback function calls will
+ * signal sequential elements of this compound class,
+ * until the next corresponding
+ * bt_bfcr_cbs::classes::compound_end() is called.
+ *
+ * If \p class is a variant class, then only one class
+ * callback function call will follow before the call to
+ * bt_bfcr_cbs::classes::compound_end(). This single
+ * call indicates the selected class of this variant
+ * class.
+ *
+ * @param class Beginning compound class
+ * @param data User data
+ * @returns #BT_BFCR_STATUS_OK or
+ * #BT_BFCR_STATUS_ERROR
+ */
+ enum bt_bfcr_status (*compound_begin)(struct ctf_field_class *cls, void *data);
- /**
- * Called when a compound class ends.
- *
- * @param class Ending compound class
- * @param data User data
- * @returns #BT_BFCR_STATUS_OK or
- * #BT_BFCR_STATUS_ERROR
- */
- enum bt_bfcr_status (* compound_end)(
- struct ctf_field_class *cls, void *data);
- } classes;
+ /**
+ * Called when a compound class ends.
+ *
+ * @param class Ending compound class
+ * @param data User data
+ * @returns #BT_BFCR_STATUS_OK or
+ * #BT_BFCR_STATUS_ERROR
+ */
+ enum bt_bfcr_status (*compound_end)(struct ctf_field_class *cls, void *data);
+ } classes;
- /**
- * Query callback functions are used when the class reader needs
- * dynamic information, i.e. a sequence class's current length
- * or a variant class's current selected class.
- *
- * Both functions need to be set unless it is known that no
- * sequences or variants will have to be decoded.
- */
- struct {
- /**
- * Called to query the current length of a given sequence
- * class.
- *
- * @param class Sequence class
- * @param data User data
- * @returns Sequence length or
- * #BT_BFCR_STATUS_ERROR on error
- */
- int64_t (* get_sequence_length)(struct ctf_field_class *cls,
- void *data);
+ /**
+ * Query callback functions are used when the class reader needs
+ * dynamic information, i.e. a sequence class's current length
+ * or a variant class's current selected class.
+ *
+ * Both functions need to be set unless it is known that no
+ * sequences or variants will have to be decoded.
+ */
+ struct
+ {
+ /**
+ * Called to query the current length of a given sequence
+ * class.
+ *
+ * @param class Sequence class
+ * @param data User data
+ * @returns Sequence length or
+ * #BT_BFCR_STATUS_ERROR on error
+ */
+ int64_t (*get_sequence_length)(struct ctf_field_class *cls, void *data);
- /**
- * Called to query the current selected class of a given
- * variant class.
- *
- * @param class Variant class
- * @param data User data
- * @returns Current selected class (owned by
- * this) or \c NULL on error
- */
- struct ctf_field_class * (* borrow_variant_selected_field_class)(
- struct ctf_field_class *cls, void *data);
- } query;
+ /**
+ * Called to query the current selected class of a given
+ * variant class.
+ *
+ * @param class Variant class
+ * @param data User data
+ * @returns Current selected class (owned by
+ * this) or \c NULL on error
+ */
+ struct ctf_field_class *(*borrow_variant_selected_field_class)(struct ctf_field_class *cls,
+ void *data);
+ } query;
};
/**
* @returns New binary class reader on success, or \c NULL on error
*/
BT_HIDDEN
-struct bt_bfcr *bt_bfcr_create(struct bt_bfcr_cbs cbs, void *data,
- bt_logging_level log_level, bt_self_component *self_comp);
+struct bt_bfcr *bt_bfcr_create(struct bt_bfcr_cbs cbs, void *data, bt_logging_level log_level,
+ bt_self_component *self_comp);
/**
* Destroys a CTF binary class reader, freeing all internal resources.
* @returns Number of consumed bits
*/
BT_HIDDEN
-size_t bt_bfcr_start(struct bt_bfcr *bfcr,
- struct ctf_field_class *cls, const uint8_t *buf,
- size_t offset, size_t packet_offset, size_t sz,
- enum bt_bfcr_status *status);
+size_t bt_bfcr_start(struct bt_bfcr *bfcr, struct ctf_field_class *cls, const uint8_t *buf,
+ size_t offset, size_t packet_offset, size_t sz, enum bt_bfcr_status *status);
/**
* Continues the decoding process a given CTF class.
* @returns Number of consumed bits
*/
BT_HIDDEN
-size_t bt_bfcr_continue(struct bt_bfcr *bfcr,
- const uint8_t *buf, size_t sz,
- enum bt_bfcr_status *status);
+size_t bt_bfcr_continue(struct bt_bfcr *bfcr, const uint8_t *buf, size_t sz,
+ enum bt_bfcr_status *status);
BT_HIDDEN
-void bt_bfcr_set_unsigned_int_cb(struct bt_bfcr *bfcr,
- bt_bfcr_unsigned_int_cb_func cb);
+void bt_bfcr_set_unsigned_int_cb(struct bt_bfcr *bfcr, bt_bfcr_unsigned_int_cb_func cb);
-static inline
-const char *bt_bfcr_status_string(enum bt_bfcr_status status)
+static inline const char *bt_bfcr_status_string(enum bt_bfcr_status status)
{
- switch (status) {
- case BT_BFCR_STATUS_ENOMEM:
- return "ENOMEM";
- case BT_BFCR_STATUS_EOF:
- return "EOF";
- case BT_BFCR_STATUS_INVAL:
- return "INVAL";
- case BT_BFCR_STATUS_ERROR:
- return "ERROR";
- case BT_BFCR_STATUS_OK:
- return "OK";
- }
+ switch (status) {
+ case BT_BFCR_STATUS_ENOMEM:
+ return "ENOMEM";
+ case BT_BFCR_STATUS_EOF:
+ return "EOF";
+ case BT_BFCR_STATUS_INVAL:
+ return "INVAL";
+ case BT_BFCR_STATUS_ERROR:
+ return "ERROR";
+ case BT_BFCR_STATUS_OK:
+ return "OK";
+ }
- bt_common_abort();
+ bt_common_abort();
}
#endif /* CTF_BFCR_H */
projects / babeltrace.git / blobdiff