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xd: use new bio magic to make -u more efficient

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aiju 2017-06-12 19:56:57 +00:00
parent 1a40bdeb84
commit fff474d863
1 changed files with 8 additions and 4 deletions
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12
sys/src/cmd/xd.c
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@ -58,6 +58,13 @@ char *afmt[2][3] = {
Biobuf bin;
Biobuf bout;
int
flushout(Biobufhdr *bp, void *v, long n)
{
Bflush(&bout);
return read(bp->fid, v, n);
}
void
main(int argc, char *argv[])
{
@ -206,6 +213,7 @@ xd(char *name, int title)
bp = &bin;
Binit(bp, fd, OREAD);
}
if(flush) Biofn(bp, flushout);
Blethal(bp, nil);
if(title)
xprint("%s\n", name);
@ -237,15 +245,11 @@ xd(char *name, int title)
xprint(ap->afmt, addr);
(*ap->fn)(ap->fmt);
xprint("\n", 0);
if(flush)
Bflush(&bout);
}
addr += ndata;
if(ndata<16){
xprint(afmt[0][abase], addr);
xprint("\n", 0);
if(flush)
Bflush(&bout);
break;
}
}