diff options
Diffstat (limited to 'usr.bin/aucat/abuf.h')
| -rw-r--r-- | usr.bin/aucat/abuf.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/usr.bin/aucat/abuf.h b/usr.bin/aucat/abuf.h index e214eb132e7..aefe8698fb8 100644 --- a/usr.bin/aucat/abuf.h +++ b/usr.bin/aucat/abuf.h @@ -1,4 +1,4 @@ -/* $OpenBSD: abuf.h,v 1.8 2008/08/14 15:25:16 ratchov Exp $ */ +/* $OpenBSD: abuf.h,v 1.9 2008/10/26 08:49:43 ratchov Exp $ */ /* * Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org> * @@ -41,7 +41,7 @@ struct abuf { unsigned xrun; /* common to mix and sub */ LIST_ENTRY(abuf) ient; /* for mix inputs list */ LIST_ENTRY(abuf) oent; /* for sub outputs list */ - + /* * fifo parameters */ @@ -54,6 +54,8 @@ struct abuf { unsigned drop; /* bytes to drop on next read */ struct aproc *rproc; /* reader */ struct aproc *wproc; /* writer */ + struct abuf *duplex; /* link to buffer of the other direction */ + unsigned inuse; /* in abuf_{flush,fill,run}() */ unsigned char *data; /* actual data (immediately following) */ }; @@ -74,6 +76,11 @@ struct abuf { #define ABUF_EOF(b) (!ABUF_ROK(b) && (b)->wproc == NULL) /* + * the buffer is empty and has no more writer + */ +#define ABUF_HUP(b) (!ABUF_WOK(b) && (b)->rproc == NULL) + +/* * similar to !ABUF_WOK, but is used for file i/o, where * operation may not involve an integer number of frames */ @@ -91,10 +98,12 @@ unsigned char *abuf_rgetblk(struct abuf *, unsigned *, unsigned); unsigned char *abuf_wgetblk(struct abuf *, unsigned *, unsigned); void abuf_rdiscard(struct abuf *, unsigned); void abuf_wcommit(struct abuf *, unsigned); -void abuf_fill(struct abuf *); -void abuf_flush(struct abuf *); +int abuf_fill(struct abuf *); +int abuf_flush(struct abuf *); void abuf_eof(struct abuf *); void abuf_hup(struct abuf *); void abuf_run(struct abuf *); +void abuf_ipos(struct abuf *, int); +void abuf_opos(struct abuf *, int); #endif /* !defined(ABUF_H) */ |