Subversion Repositories planix.SVN

#include        <u.h>
#include        <libc.h>
#include        <bio.h>

int
Bflush(Biobufhdr *bp)
{
        int n, c;

        switch(bp->state) {
        case Bwactive:
                n = bp->bsize+bp->ocount;
                if(n == 0)
                        return 0;
                c = write(bp->fid, bp->bbuf, n);
                if(n == c) {
                        bp->offset += n;
                        bp->ocount = -bp->bsize;
                        return 0;
                }
                bp->state = Binactive;
                bp->ocount = 0;
                break;

        case Bracteof:
                bp->state = Bractive;

        case Bractive:
                bp->icount = 0;
                bp->gbuf = bp->ebuf;
                return 0;
        }
        return Beof;
}