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Hiding crypt_path_t: Hiding 'crypto' using a macro.

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This commit is contained in:
George Kadianakis 2019-04-26 14:19:14 +03:00
parent 2ef0324639
commit 55d35c0caa
1 changed files with 13 additions and 10 deletions
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23
src/core/or/crypt_path_st.h
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@ -24,15 +24,16 @@ struct onion_handshake_state_t {
} u;
};
/** Macro to encapsulate private members of a struct.
*
* Renames 'x' to 'x_crypt_path_private_field'.
*/
#define CRYPT_PATH_PRIV_FIELD(x) x ## _crypt_path_private_field
#ifdef CRYPT_PATH_PRIVATE
/* The private parts of crypt path that don't need to be exposed to all the
* modules. */
struct crypt_path_private_t {
/** Cryptographic state used for encrypting and authenticating relay
* cells to and from this hop. */
relay_crypto_t crypto;
};
/* Helper macro to access private members of a struct. */
#define pvt_crypto CRYPT_PATH_PRIV_FIELD(crypto)
#endif
@ -74,9 +75,11 @@ struct crypt_path_t {
int deliver_window; /**< How many cells are we willing to deliver originating
* at this step? */
/* Private parts of the crypt_path. Eventually everything should be
* private. */
struct crypt_path_private_t *private;
/*********************** Private members ****************************/
/** Private member: Cryptographic state used for encrypting and
* authenticating relay cells to and from this hop. */
relay_crypto_t CRYPT_PATH_PRIV_FIELD(crypto);
};
#endif