X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Fbabeltrace%2Fctf-ir%2Fevent-fields.h;h=0c9395a78f9fd2ef2090c4c0201a9e740f7ae1b9;hb=7e69c04f557e46fb50e5a888a3bc3451afbd3b8e;hp=b102d6323a51b6b8056655b61e5ec762560099b4;hpb=f98c6554b0e1dd37e0f992f7b5e67c4431f911a6;p=babeltrace.git diff --git a/include/babeltrace/ctf-ir/event-fields.h b/include/babeltrace/ctf-ir/event-fields.h index b102d632..0c9395a7 100644 --- a/include/babeltrace/ctf-ir/event-fields.h +++ b/include/babeltrace/ctf-ir/event-fields.h @@ -1,360 +1,2 @@ -#ifndef BABELTRACE_CTF_IR_EVENT_FIELDS_H -#define BABELTRACE_CTF_IR_EVENT_FIELDS_H - -/* - * BabelTrace - CTF IR: Event Fields - * - * Copyright 2013, 2014 Jérémie Galarneau - * - * Author: Jérémie Galarneau - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * The Common Trace Format (CTF) Specification is available at - * http://www.efficios.com/ctf - */ - -#include -#include - -#ifdef __cplusplus -extern "C" { -#endif - -struct bt_ctf_event_class; -struct bt_ctf_event; -struct bt_ctf_field; -struct bt_ctf_field_type; - -/* - * bt_ctf_field_create: create an instance of a field. - * - * Allocate a new field of the type described by the bt_ctf_field_type - * structure.The creation of a field sets its reference count to 1. - * - * @param type Field type to be instanciated. - * - * Returns an allocated field on success, NULL on error. - */ -extern struct bt_ctf_field *bt_ctf_field_create( - struct bt_ctf_field_type *type); - -/* - * bt_ctf_field_structure_get_field: get a structure's field. - * - * Get the structure's field corresponding to the provided field name. - * bt_ctf_field_put() must be called on the returned value. - * - * @param structure Structure field instance. - * @param name Name of the field in the provided structure. - * - * Returns a field instance on success, NULL on error. - */ -extern struct bt_ctf_field *bt_ctf_field_structure_get_field( - struct bt_ctf_field *structure, const char *name); - -/* - * bt_ctf_field_structure_get_field_by_index: get a structure's field by index. - * - * Get the structure's field corresponding to the provided field name. - * bt_ctf_field_put() must be called on the returned value. - * The indexes are the same as those provided for bt_ctf_field_type_structure. - * - * @param structure Structure field instance. - * @param index Index of the field in the provided structure. - * - * Returns a field instance on success, NULL on error. - */ -extern struct bt_ctf_field *bt_ctf_field_structure_get_field_by_index( - struct bt_ctf_field *structure, int index); - -/* - * bt_ctf_field_array_get_field: get an array's field at position "index". - * - * Return the array's field at position "index". bt_ctf_field_put() must be - * called on the returned value. - * - * @param array Array field instance. - * @param index Position of the array's desired element. - * - * Returns a field instance on success, NULL on error. - */ -extern struct bt_ctf_field *bt_ctf_field_array_get_field( - struct bt_ctf_field *array, uint64_t index); - -/* - * bt_ctf_field_sequence_get_length: get a sequence's length. - * - * Get the sequence's length field. - * - * @param sequence Sequence field instance. - * - * Returns a field instance on success, NULL if a length was never set. - */ -extern struct bt_ctf_field *bt_ctf_field_sequence_get_length( - struct bt_ctf_field *sequence); - -/* - * bt_ctf_field_sequence_set_length: set a sequence's length. - * - * Set the sequence's length field. - * - * @param sequence Sequence field instance. - * @param length_field Unsigned integer field instance indicating the - * sequence's length. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_sequence_set_length(struct bt_ctf_field *sequence, - struct bt_ctf_field *length_field); - -/* - * bt_ctf_field_sequence_get_field: get a sequence's field at position "index". - * - * Return the sequence's field at position "index". The sequence's length must - * have been set prior to calling this function using - * bt_ctf_field_sequence_set_length(). - * bt_ctf_field_put() must be called on the returned value. - * - * @param array Sequence field instance. - * @param index Position of the sequence's desired element. - * - * Returns a field instance on success, NULL on error. - */ -extern struct bt_ctf_field *bt_ctf_field_sequence_get_field( - struct bt_ctf_field *sequence, uint64_t index); - -/* - * bt_ctf_field_variant_get_field: get a variant's selected field. - * - * Return the variant's selected field. The "tag" field is the selector enum - * field. bt_ctf_field_put() must be called on the returned value. - * - * @param variant Variant field instance. - * @param tag Selector enumeration field. - * - * Returns a field instance on success, NULL on error. - */ -extern struct bt_ctf_field *bt_ctf_field_variant_get_field( - struct bt_ctf_field *variant, struct bt_ctf_field *tag); - -/* - * bt_ctf_field_enumeration_get_container: get an enumeration field's container. - * - * Return the enumeration's underlying container field (an integer). - * bt_ctf_field_put() must be called on the returned value. - * - * @param enumeration Enumeration field instance. - * - * Returns a field instance on success, NULL on error. - */ -extern struct bt_ctf_field *bt_ctf_field_enumeration_get_container( - struct bt_ctf_field *enumeration); - -/* - * bt_ctf_field_enumeration_get_mapping_name: get an enumeration field's mapping - * name. - * - * Return the enumeration's underlying container field (an integer). - * bt_ctf_field_put() must be called on the returned value. - * - * @param enumeration Enumeration field instance. - * - * Returns a field instance on success, NULL on error. - */ -extern const char *bt_ctf_field_enumeration_get_mapping_name( - struct bt_ctf_field *enumeration); - -/* - * bt_ctf_field_signed_integer_get_value: get a signed integer field's value - * - * Get a signed integer field's value. - * - * @param integer Signed integer field instance. - * @param value Pointer to a signed integer where the value will be stored. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_signed_integer_get_value(struct bt_ctf_field *integer, - int64_t *value); - -/* - * bt_ctf_field_signed_integer_set_value: set a signed integer field's value - * - * Set a signed integer field's value. The value is checked to make sure it - * can be stored in the underlying field. - * - * @param integer Signed integer field instance. - * @param value Signed integer field value. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_signed_integer_set_value(struct bt_ctf_field *integer, - int64_t value); - -/* - * bt_ctf_field_unsigned_integer_get_value: get unsigned integer field's value - * - * Get an unsigned integer field's value. - * - * @param integer Unsigned integer field instance. - * @param value Pointer to an unsigned integer where the value will be stored. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_unsigned_integer_get_value(struct bt_ctf_field *integer, - uint64_t *value); - -/* - * bt_ctf_field_unsigned_integer_set_value: set unsigned integer field's value - * - * Set an unsigned integer field's value. The value is checked to make sure it - * can be stored in the underlying field. - * - * @param integer Unsigned integer field instance. - * @param value Unsigned integer field value. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_unsigned_integer_set_value(struct bt_ctf_field *integer, - uint64_t value); - -/* - * bt_ctf_field_floating_point_get_value: get a floating point field's value - * - * Get a floating point field's value. - * - * @param floating_point Floating point field instance. - * @param value Pointer to a double where the value will be stored. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_floating_point_get_value( - struct bt_ctf_field *floating_point, double *value); - -/* - * bt_ctf_field_floating_point_set_value: set a floating point field's value - * - * Set a floating point field's value. The underlying type may not support the - * double's full precision. - * - * @param floating_point Floating point field instance. - * @param value Floating point field value. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_floating_point_set_value( - struct bt_ctf_field *floating_point, - double value); - -/* - * bt_ctf_field_string_get_value: get a string field's value - * - * Get a string field's value. - * - * @param string_field String field instance. - * - * Returns the string's value, NULL if unset. - */ -extern const char *bt_ctf_field_string_get_value( - struct bt_ctf_field *string_field); - -/* - * bt_ctf_field_string_set_value: set a string field's value - * - * Set a string field's value. - * - * @param string_field String field instance. - * @param value String field value (will be copied). - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_string_set_value(struct bt_ctf_field *string_field, - const char *value); - -/* - * bt_ctf_field_string_append: append a string to a string field's - * current value. - * - * Append a string to the current value of a string field. If the string - * field was never set using bt_ctf_field_string_set_value(), it is - * first set to an empty string, and then the concatenation happens. - * - * @param string_field String field instance. - * @param value String to append to the current string field's value. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_string_append(struct bt_ctf_field *string_field, - const char *value); - -/* - * bt_ctf_field_string_append_len: append a string of a given length to - * a string field's current value. - * - * Append a string of a given length to the current value of a string - * field. If the string field was never set using - * bt_ctf_field_string_set_value(), it is first set to an empty string, - * and then the concatenation happens. - * - * If a null byte is encountered before the given length, only the - * substring before the first null byte is appended. - * - * @param string_field String field instance. - * @param value String to append to the current string field's value. - * @param length Length of string value to append. - * - * Returns 0 on success, a negative value on error. - */ -extern int bt_ctf_field_string_append_len( - struct bt_ctf_field *string_field, const char *value, - unsigned int length); - -/* - * bt_ctf_field_get_type: get a field's type - * - * @param field Field intance. - * - * Returns a field type instance on success, NULL on error. - */ -extern struct bt_ctf_field_type *bt_ctf_field_get_type( - struct bt_ctf_field *field); - -/* - * bt_ctf_field_get and bt_ctf_field_put: increment and decrement the - * field's reference count. - * - * These functions ensure that the field won't be destroyed when it - * is in use. The same number of get and put (plus one extra put to - * release the initial reference done at creation) have to be done to - * destroy a field. - * - * When the field's reference count is decremented to 0 by a bt_ctf_field_put, - * the field is freed. - * - * @param field Field instance. - */ -extern void bt_ctf_field_get(struct bt_ctf_field *field); -extern void bt_ctf_field_put(struct bt_ctf_field *field); - -#ifdef __cplusplus -} -#endif - -#endif /* BABELTRACE_CTF_IR_EVENT_FIELDS_H */ +/* Pre-2.0 CTF writer backward compatibility */ +#include