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* fhandler_raw.cc (fhandler_dev_raw::raw_write): Remove buffered

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write entirely.
This commit is contained in:
Corinna Vinschen 2004-07-14 13:51:17 +00:00
parent e84b534998
commit dd3a7a2042
2 changed files with 6 additions and 70 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,8 @@
2004-07-14 Corinna Vinschen <corinna@vinschen.de>
* fhandler_raw.cc (fhandler_dev_raw::raw_write): Remove buffered
write entirely.
2004-07-07 Corinna Vinschen <corinna@vinschen.de> 2004-07-07 Corinna Vinschen <corinna@vinschen.de>
* spawn.cc (spawn_guts): Check if script is executable. * spawn.cc (spawn_guts): Check if script is executable.

71
winsup/cygwin/fhandler_raw.cc
View File

@ -310,10 +310,7 @@ int
fhandler_dev_raw::raw_write (const void *ptr, size_t len) fhandler_dev_raw::raw_write (const void *ptr, size_t len)
{ {
DWORD bytes_written = 0; DWORD bytes_written = 0;
DWORD bytes_to_write;
DWORD written;
char *p = (char *) ptr; char *p = (char *) ptr;
char *tgt;
int ret; int ret;
/* Checking a previous end of media on tape */ /* Checking a previous end of media on tape */
@ -327,73 +324,7 @@ fhandler_dev_raw::raw_write (const void *ptr, size_t len)
devbufstart = devbufend = 0; devbufstart = devbufend = 0;
is_writing (true); is_writing (true);
if (devbuf) if (len > 0)
{
while (len > 0)
{
if ((len < devbufsiz || devbufend > 0) && devbufend < devbufsiz)
{
bytes_to_write = min (len, devbufsiz - devbufend);
memcpy (devbuf + devbufend, p, bytes_to_write);
bytes_written += bytes_to_write;
devbufend += bytes_to_write;
p += bytes_to_write;
len -= bytes_to_write;
}
else
{
if (devbufend == devbufsiz)
{
bytes_to_write = devbufsiz;
tgt = devbuf;
}
else
{
bytes_to_write = (len / devbufsiz) * devbufsiz;
tgt = p;
}
ret = 0;
write_file (tgt, bytes_to_write, &written, &ret);
if (ret)
{
if (!is_eom (ret))
{
__seterrno ();
return -1;
}
eom_detected (true);
if (!written && !bytes_written)
{
set_errno (ENOSPC);
return -1;
}
if (tgt == p)
bytes_written += written;
break; // from while (len > 0)
}
if (tgt == devbuf)
{
if (written != devbufsiz)
memmove (devbuf, devbuf + written, devbufsiz - written);
devbufend = devbufsiz - written;
}
else
{
len -= written;
p += written;
bytes_written += written;
}
}
}
}
else if (len > 0)
{ {
if (!write_file (p, len, &bytes_written, &ret)) if (!write_file (p, len, &bytes_written, &ret))
{ {