mysticmode/plan9port
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

rc: do not exit on EINTR from read

Browse Source 
This happens if lldb attaches to rc.
This commit is contained in:
Russ Cox
2021-01-14 09:59:54 -05:00
parent 0cc1faf015
commit c3ae85a004
1 changed files with 10 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/cmd/rc/io.c
View File

@@ -1,4 +1,5 @@
#include <limits.h> #include <limits.h>
#include <errno.h>
#include "rc.h" #include "rc.h"
#include "exec.h" #include "exec.h"
#include "io.h" #include "io.h"
@@ -257,7 +258,15 @@ int
emptybuf(io *f) emptybuf(io *f)
{ {
int n; int n;
if(f->fd==-1 || (n = Read(f->fd, f->buf, NBUF))<=0) return EOF; if(f->fd==-1)
return EOF;
Loop:
errno = 0;
n = Read(f->fd, f->buf, NBUF);
if(n < 0 && errno == EINTR)
goto Loop;
if(n <= 0)
return EOF;
f->bufp = f->buf; f->bufp = f->buf;
f->ebuf = f->buf+n; f->ebuf = f->buf+n;
return *f->bufp++&0xff; return *f->bufp++&0xff;