/* The thread started by start_writer. */
static void *
writer_thread_main (void *arg)
{
struct writer_thread_parms *parm = arg;
const char *buffer = parm->data;
size_t length = parm->datalen;
while (length)
{
ssize_t nwritten;
nwritten = npth_write (parm->fd, buffer, length < 4096? length:4096);
if (nwritten < 0)
{
if (errno == EINTR)
continue;
*parm->err_addr = gpg_error_from_syserror ();
break; /* Write error. */
}
length -= nwritten;
buffer += nwritten;
}
if (close (parm->fd))
log_error ("closing writer fd %d failed: %s\n", parm->fd, strerror (errno));
xfree (parm);
return NULL;
}
/* Write NBYTES of BUF to file descriptor FD. */
static int
writen (int fd, const void *buf, size_t nbytes)
{
size_t nleft = nbytes;
int nwritten;
while (nleft > 0)
{
nwritten = npth_write (fd, buf, nleft);
if (nwritten < 0)
{
if (errno == EINTR)
nwritten = 0;
else
return -1;
}
nleft -= nwritten;
buf = (const char*)buf + nwritten;
}
return 0;
}
/* The thread started by start_writer. */
static void *
writer_thread_main (void *arg)
{
gpg_error_t err = 0;
struct writer_thread_parms *parm = arg;
char _buffer[4096];
char *buffer;
size_t length;
if (parm->stream)
{
buffer = _buffer;
err = es_read (parm->stream, buffer, sizeof _buffer, &length);
if (err)
{
log_error ("reading stream failed: %s\n", gpg_strerror (err));
goto leave;
}
}
else
{
buffer = (char *) parm->data;
length = parm->datalen;
}
while (length)
{
ssize_t nwritten;
nwritten = npth_write (parm->fd, buffer, length < 4096? length:4096);
if (nwritten < 0)
{
if (errno == EINTR)
continue;
err = my_error_from_syserror ();
break; /* Write error. */
}
length -= nwritten;
if (parm->stream)
{
if (length == 0)
{
err = es_read (parm->stream, buffer, sizeof _buffer, &length);
if (err)
{
log_error ("reading stream failed: %s\n",
gpg_strerror (err));
break;
}
if (length == 0)
/* We're done. */
break;
}
}
else
buffer += nwritten;
}
leave:
*parm->err_addr = err;
if (close (parm->fd))
log_error ("closing writer fd %d failed: %s\n", parm->fd, strerror (errno));
xfree (parm);
return NULL;
}
