trc: make read not ignore interrupts/errors (again) - plan9port - [fork] Plan 9 from user space
HTML git clone git://src.adamsgaard.dk/plan9port
DIR Log
DIR Files
DIR Refs
DIR README
DIR LICENSE
---
DIR commit e066b12927b496c9f3b442a5928bacfb48e6334e
DIR parent 375b78fb110b7e1dd3686bc43aba38cf45c606e9
HTML Author: Michael Teichgräber <mt4swm@googlemail.com>
Date: Sun, 23 Aug 2009 13:25:44 -0400
rc: make read not ignore interrupts/errors (again)
http://codereview.appspot.com/110042
Diffstat:
M src/cmd/rc/unixcrap.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
---
DIR diff --git a/src/cmd/rc/unixcrap.c b/src/cmd/rc/unixcrap.c
t@@ -222,8 +222,11 @@ readnb(int fd, char *buf, long cnt)
int flgs;
didreset = 0;
- while((n = read(fd, buf, cnt)) == -1)
- if(!didreset && errno == EAGAIN){
+again:
+ n = read(fd, buf, cnt);
+ if(n == -1)
+ if(errno == EAGAIN){
+ if(!didreset){
if((flgs = fcntl(fd, F_GETFL, 0)) == -1)
return -1;
flgs &= ~O_NONBLOCK;
t@@ -231,6 +234,8 @@ readnb(int fd, char *buf, long cnt)
return -1;
didreset = 1;
}
+ goto again;
+ }
return n;
}