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Annotation of src/usr.bin/sndiod/abuf.h, Revision 1.1

1.1     ! ratchov     1: /*     $OpenBSD$       */
        !             2: /*
        !             3:  * Copyright (c) 2008-2012 Alexandre Ratchov <alex@caoua.org>
        !             4:  *
        !             5:  * Permission to use, copy, modify, and distribute this software for any
        !             6:  * purpose with or without fee is hereby granted, provided that the above
        !             7:  * copyright notice and this permission notice appear in all copies.
        !             8:  *
        !             9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            16:  */
        !            17: #ifndef ABUF_H
        !            18: #define ABUF_H
        !            19:
        !            20: struct abuf {
        !            21:        int start;      /* offset (frames) where stored data starts */
        !            22:        int used;       /* frames stored in the buffer */
        !            23:        int len;        /* total size of the buffer (frames) */
        !            24:        unsigned char *data;
        !            25: };
        !            26:
        !            27: void abuf_init(struct abuf *, unsigned int);
        !            28: void abuf_done(struct abuf *);
        !            29: void abuf_log(struct abuf *);
        !            30: unsigned char *abuf_rgetblk(struct abuf *, int *);
        !            31: unsigned char *abuf_wgetblk(struct abuf *, int *);
        !            32: void abuf_rdiscard(struct abuf *, int);
        !            33: void abuf_wcommit(struct abuf *, int);
        !            34:
        !            35: #endif /* !defined(ABUF_H) */