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- /* This file is part of libepistle.
- *
- * libepistle is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * libepistle 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 Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with libepistle. If not, see <http://www.gnu.org/licenses/>.
- */
- #ifndef EPISTLE_MESSAGE_H
- #define EPISTLE_MESSAGE_H
- #include <primo/err.h>
- #include <stdint.h>
- /* Note on symmetry of sending and receiving:
- A message that has been received can be send, but before you can receive
- on a Msg structure that has been sent you need to call message_recv_init()
- (and you probably want to dispose as well). */
- typedef struct {
- uint32_t len;
- uint32_t len_tnsfd;
- unsigned char *buf;
- uint32_t buf_tnsfd;
- unsigned buf_freeable : 1;
- } Msg;
- int
- msg_copy(Msg *des, const Msg *src, Err *err);
- int
- msg_extend(Msg *msg, uint32_t amt, Err *err);
- void
- msg_send_init(Msg *msg, uint32_t len, void *buf, int buf_freeable);
- int
- msg_send(int fd, Msg *msg, int wait, Err *err);
- void
- msg_recv_init(Msg *msg);
- int
- msg_recv(int fd, Msg *msg, uint32_t max_len, int wait, Err *err);
- void
- msg_dispose(Msg *msg);
- int
- msg_tnsfd(Msg *msg);
- void
- msg_reuse(Msg *msg);
- #endif
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