src/usr.bin/aucat/abuf.h - diff

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version 1.8, 2008/08/14 15:25:16

version 1.9, 2008/10/26 08:49:43

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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

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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) */

};

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#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

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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 *);

int abuf_fill(struct abuf *);

void abuf_flush(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) */