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- /*
- This file is part of GNUnet.
- Copyright (C) 2020 GNUnet e.V.
- GNUnet is free software: you can redistribute it and/or modify it
- under the terms of the GNU Affero General Public License as published
- by the Free Software Foundation, either version 3 of the License,
- or (at your option) any later version.
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Affero General Public License for more details.
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- SPDX-License-Identifier: AGPL3.0-or-later
- */
- /**
- * @author Tobias Frisch
- * @file src/messenger/gnunet-service-messenger_contact.h
- * @brief GNUnet MESSENGER service
- */
- #ifndef GNUNET_SERVICE_MESSENGER_CONTACT_H
- #define GNUNET_SERVICE_MESSENGER_CONTACT_H
- #include "platform.h"
- #include "gnunet_crypto_lib.h"
- #include "gnunet_identity_service.h"
- struct GNUNET_MESSENGER_SrvContact
- {
- char *name;
- size_t rc;
- struct GNUNET_IDENTITY_PublicKey public_key;
- };
- /**
- * Creates and allocates a new contact with a given public <i>key</i> from an EGO.
- *
- * @param key Public key
- * @return New contact
- */
- struct GNUNET_MESSENGER_SrvContact*
- create_contact (const struct GNUNET_IDENTITY_PublicKey *key);
- /**
- * Destroys a contact and frees its memory fully.
- *
- * @param contact Contact
- */
- void
- destroy_contact (struct GNUNET_MESSENGER_SrvContact *contact);
- /**
- * Returns the current name of a given <i>contact</i> or NULL if no valid name was assigned yet.
- *
- * @param contact Contact
- * @return Name of the contact or NULL
- */
- const char*
- get_contact_name (const struct GNUNET_MESSENGER_SrvContact *contact);
- /**
- * Changes the current name of a given <i>contact</i> by copying it from the parameter <i>name</i>.
- *
- * @param contact Contact
- * @param name Valid name (may not be NULL!)
- */
- void
- set_contact_name (struct GNUNET_MESSENGER_SrvContact *contact, const char *name);
- /**
- * Returns the public key of a given <i>contact</i>.
- *
- * @param contact Contact
- * @return Public key of the contact
- */
- const struct GNUNET_IDENTITY_PublicKey*
- get_contact_key (const struct GNUNET_MESSENGER_SrvContact *contact);
- /**
- * Increases the reference counter of a given <i>contact</i> which is zero as default.
- *
- * @param contact Contact
- */
- void
- increase_contact_rc (struct GNUNET_MESSENGER_SrvContact *contact);
- /**
- * Decreases the reference counter if possible (can not underflow!) of a given <i>contact</i>
- * and returns GNUNET_YES if the counter is equal to zero, otherwise GNUNET_NO.
- *
- * @param contact Contact
- * @return GNUNET_YES or GNUNET_NO depending on the reference counter
- */
- int
- decrease_contact_rc (struct GNUNET_MESSENGER_SrvContact *contact);
- /**
- * Returns the resulting hashcode of the public key from a given <i>contact</i>.
- *
- * @param contact Contact
- * @return Hash of the contacts public key
- */
- const struct GNUNET_HashCode*
- get_contact_id_from_key (const struct GNUNET_MESSENGER_SrvContact *contact);
- #endif //GNUNET_SERVICE_MESSENGER_CONTACT_H
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