libtor-src 47.13.0+0.4.7.13

/* congestion_control.h -- generated by Trunnel v1.5.3.
 * https://gitweb.torproject.org/trunnel.git
 * You probably shouldn't edit this file.
 */
#ifndef TRUNNEL_CONGESTION_CONTROL_H
#define TRUNNEL_CONGESTION_CONTROL_H

#include <stdint.h>
#include "trunnel.h"

#define TRUNNEL_EXT_TYPE_CC_FIELD_REQUEST 1
#define TRUNNEL_EXT_TYPE_CC_FIELD_RESPONSE 2
#if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_TRN_EXTENSION_FIELD_CC)
struct trn_extension_field_cc_st {
  uint8_t sendme_inc;
  uint8_t trunnel_error_code_;
};
#endif
typedef struct trn_extension_field_cc_st trn_extension_field_cc_t;
/** Return a newly allocated trn_extension_field_cc with all elements
 * set to zero.
 */
trn_extension_field_cc_t *trn_extension_field_cc_new(void);
/** Release all storage held by the trn_extension_field_cc in
 * 'victim'. (Do nothing if 'victim' is NULL.)
 */
void trn_extension_field_cc_free(trn_extension_field_cc_t *victim);
/** Try to parse a trn_extension_field_cc from the buffer in 'input',
 * using up to 'len_in' bytes from the input buffer. On success,
 * return the number of bytes consumed and set *output to the newly
 * allocated trn_extension_field_cc_t. On failure, return -2 if the
 * input appears truncated, and -1 if the input is otherwise invalid.
 */
ssize_t trn_extension_field_cc_parse(trn_extension_field_cc_t **output, const uint8_t *input, const size_t len_in);
/** Return the number of bytes we expect to need to encode the
 * trn_extension_field_cc in 'obj'. On failure, return a negative
 * value. Note that this value may be an overestimate, and can even be
 * an underestimate for certain unencodeable objects.
 */
ssize_t trn_extension_field_cc_encoded_len(const trn_extension_field_cc_t *obj);
/** Try to encode the trn_extension_field_cc from 'input' into the
 * buffer at 'output', using up to 'avail' bytes of the output buffer.
 * On success, return the number of bytes used. On failure, return -2
 * if the buffer was not long enough, and -1 if the input was invalid.
 */
ssize_t trn_extension_field_cc_encode(uint8_t *output, size_t avail, const trn_extension_field_cc_t *input);
/** Check whether the internal state of the trn_extension_field_cc in
 * 'obj' is consistent. Return NULL if it is, and a short message if
 * it is not.
 */
const char *trn_extension_field_cc_check(const trn_extension_field_cc_t *obj);
/** Clear any errors that were set on the object 'obj' by its setter
 * functions. Return true iff errors were cleared.
 */
int trn_extension_field_cc_clear_errors(trn_extension_field_cc_t *obj);
/** Return the value of the sendme_inc field of the
 * trn_extension_field_cc_t in 'inp'
 */
uint8_t trn_extension_field_cc_get_sendme_inc(const trn_extension_field_cc_t *inp);
/** Set the value of the sendme_inc field of the
 * trn_extension_field_cc_t in 'inp' to 'val'. Return 0 on success;
 * return -1 and set the error code on 'inp' on failure.
 */
int trn_extension_field_cc_set_sendme_inc(trn_extension_field_cc_t *inp, uint8_t val);


#endif