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utils: add little-endian swap helpers
[project/libubox.git]
/
ustream-fd.c
diff --git
a/ustream-fd.c
b/ustream-fd.c
index
6bb39e9
..
c8f0ef9
100644
(file)
--- a/
ustream-fd.c
+++ b/
ustream-fd.c
@@
-21,7
+21,7
@@
#include <stdio.h>
#include "ustream.h"
#include <stdio.h>
#include "ustream.h"
-static void ustream_fd_set_uloop(struct ustream *s)
+static void ustream_fd_set_uloop(struct ustream *s
, bool write
)
{
struct ustream_fd *sf = container_of(s, struct ustream_fd, stream);
struct ustream_buf *buf;
{
struct ustream_fd *sf = container_of(s, struct ustream_fd, stream);
struct ustream_buf *buf;
@@
-31,13
+31,15
@@
static void ustream_fd_set_uloop(struct ustream *s)
flags |= ULOOP_READ;
buf = s->w.head;
flags |= ULOOP_READ;
buf = s->w.head;
- if (
buf && s->w.data_bytes && !s->write_error
)
+ if (
write || (buf && s->w.data_bytes && !s->write_error)
)
flags |= ULOOP_WRITE;
uloop_fd_add(&sf->fd, flags);
flags |= ULOOP_WRITE;
uloop_fd_add(&sf->fd, flags);
+}
- if (flags & ULOOP_READ)
- sf->fd.cb(&sf->fd, ULOOP_READ);
+static void ustream_fd_set_read_blocked(struct ustream *s)
+{
+ ustream_fd_set_uloop(s, false);
}
static void ustream_fd_read_pending(struct ustream_fd *sf, bool *more)
}
static void ustream_fd_read_pending(struct ustream_fd *sf, bool *more)
@@
-53,17
+55,21
@@
static void ustream_fd_read_pending(struct ustream_fd *sf, bool *more)
break;
len = read(sf->fd.fd, buf, buflen);
break;
len = read(sf->fd.fd, buf, buflen);
- if (!len) {
- sf->fd.eof = true;
- return;
- }
-
if (len < 0) {
if (errno == EINTR)
continue;
if (errno == EAGAIN)
return;
if (len < 0) {
if (errno == EINTR)
continue;
if (errno == EAGAIN)
return;
+
+ len = 0;
+ }
+
+ if (!len) {
+ s->eof = true;
+ ustream_state_change(s);
+ ustream_fd_set_uloop(s, false);
+ return;
}
ustream_fill_read(s, len);
}
ustream_fill_read(s, len);
@@
-74,45
+80,46
@@
static void ustream_fd_read_pending(struct ustream_fd *sf, bool *more)
static int ustream_fd_write(struct ustream *s, const char *buf, int buflen, bool more)
{
struct ustream_fd *sf = container_of(s, struct ustream_fd, stream);
static int ustream_fd_write(struct ustream *s, const char *buf, int buflen, bool more)
{
struct ustream_fd *sf = container_of(s, struct ustream_fd, stream);
- ssize_t len;
+ ssize_t
ret = 0,
len;
if (!buflen)
return 0;
if (!buflen)
return 0;
-retry:
- len = write(sf->fd.fd, buf, buflen);
- if (!len)
- goto retry;
+ while (buflen) {
+ len = write(sf->fd.fd, buf, buflen);
+
+ if (len < 0) {
+ if (errno == EINTR)
+ continue;
+
+ if (errno == EAGAIN || errno == EWOULDBLOCK)
+ break;
- if (len < 0) {
- if (errno == EINTR)
- goto retry;
+ return -1;
+ }
- if (errno == EAGAIN || errno == EWOULDBLOCK)
- return 0;
+ ret += len;
+ buf += len;
+ buflen -= len;
}
}
- return len;
+ if (buflen)
+ ustream_fd_set_uloop(s, true);
+
+ return ret;
}
static bool __ustream_fd_poll(struct ustream_fd *sf, unsigned int events)
{
struct ustream *s = &sf->stream;
}
static bool __ustream_fd_poll(struct ustream_fd *sf, unsigned int events)
{
struct ustream *s = &sf->stream;
- struct uloop_fd *fd = &sf->fd;
bool more = false;
if (events & ULOOP_READ)
ustream_fd_read_pending(sf, &more);
if (events & ULOOP_WRITE) {
bool more = false;
if (events & ULOOP_READ)
ustream_fd_read_pending(sf, &more);
if (events & ULOOP_WRITE) {
- if (ustream_write_pending(s))
- ustream_fd_set_uloop(s);
- }
-
- if (!s->eof && fd->eof) {
- s->eof = true;
- ustream_fd_set_uloop(s);
- ustream_state_change(s);
+ if (!ustream_write_pending(s))
+ ustream_fd_set_uloop(s, false);
}
return more;
}
return more;
@@
-122,7
+129,7
@@
static bool ustream_fd_poll(struct ustream *s)
{
struct ustream_fd *sf = container_of(s, struct ustream_fd, stream);
{
struct ustream_fd *sf = container_of(s, struct ustream_fd, stream);
- return __ustream_fd_poll(sf, ULOOP_READ);
+ return __ustream_fd_poll(sf, ULOOP_READ
| ULOOP_WRITE
);
}
static void ustream_uloop_cb(struct uloop_fd *fd, unsigned int events)
}
static void ustream_uloop_cb(struct uloop_fd *fd, unsigned int events)
@@
-147,9
+154,9
@@
void ustream_fd_init(struct ustream_fd *sf, int fd)
sf->fd.fd = fd;
sf->fd.cb = ustream_uloop_cb;
sf->fd.fd = fd;
sf->fd.cb = ustream_uloop_cb;
- s->set_read_blocked = ustream_fd_set_
uloop
;
+ s->set_read_blocked = ustream_fd_set_
read_blocked
;
s->write = ustream_fd_write;
s->free = ustream_fd_free;
s->poll = ustream_fd_poll;
s->write = ustream_fd_write;
s->free = ustream_fd_free;
s->poll = ustream_fd_poll;
- ustream_fd_set_uloop(s);
+ ustream_fd_set_uloop(s
, false
);
}
}