transport-helper: drop read/write errno checks

Since we use xread() and xwrite() here, EINTR, EAGAIN, and
EWOULDBLOCK retries are already handled for us, and we will
never see these errno values ourselves. We can drop these
conditions entirely, making the code easier to follow.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/transport-helper.c b/transport-helper.c
index a290695a120e05f7f653828af6d94bafdbc79e9b..a87fdf7b0b30f3f131726b53f88f46dc9324806f 100644 (file)
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -1226,8 +1226,7 @@ static int udt_do_read(struct unidirectional_transfer *t)
 
        transfer_debug("%s is readable", t->src_name);
        bytes = xread(t->src, t->buf + t->bufuse, BUFFERSIZE - t->bufuse);
-       if (bytes < 0 && errno != EWOULDBLOCK && errno != EAGAIN &&
-               errno != EINTR) {
+       if (bytes < 0) {
                error_errno(_("read(%s) failed"), t->src_name);
                return -1;
        } else if (bytes == 0) {
@@ -1254,7 +1253,7 @@ static int udt_do_write(struct unidirectional_transfer *t)
 
        transfer_debug("%s is writable", t->dest_name);
        bytes = xwrite(t->dest, t->buf, t->bufuse);
-       if (bytes < 0 && errno != EWOULDBLOCK) {
+       if (bytes < 0) {
                error_errno(_("write(%s) failed"), t->dest_name);
                return -1;
        } else if (bytes > 0) {