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Cygwin: FIFO: add a HANDLE parameter to open_pipe 

It's now up to the caller to pass a handle to open_pipe and, if
desired, to call set_handle on return.

This will be useful for a future commit, in which we will open a
client connection without setting an io_handle.
This commit is contained in:
Ken Brown 2019-05-09 11:36:26 -04:00
parent 3d5dc65104
commit 7cf9772f9d
2 changed files with 9 additions and 9 deletions
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2
winsup/cygwin/fhandler.h
View File

@ -1276,7 +1276,7 @@ class fhandler_fifo: public fhandler_base
bool __reg2 wait (HANDLE);
NTSTATUS npfs_handle (HANDLE &);
HANDLE create_pipe_instance (bool);
NTSTATUS open_pipe ();
NTSTATUS open_pipe (HANDLE&);
int add_client_handler ();
void delete_client_handler (int);
bool listen_client ();

16
winsup/cygwin/fhandler_fifo.cc
View File

@ -194,9 +194,9 @@ fhandler_fifo::create_pipe_instance (bool first)
return ph;
}
/* Called when a FIFO is opened for writing. */
/* Connect to a pipe instance. */
NTSTATUS
fhandler_fifo::open_pipe ()
fhandler_fifo::open_pipe (HANDLE& ph)
{
NTSTATUS status;
HANDLE npfsh;
@ -204,7 +204,6 @@ fhandler_fifo::open_pipe ()
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
ULONG sharing;
HANDLE ph = NULL;
status = npfs_handle (npfsh);
if (!NT_SUCCESS (status))
@ -214,8 +213,6 @@ fhandler_fifo::open_pipe ()
npfsh, NULL);
sharing = FILE_SHARE_READ | FILE_SHARE_WRITE;
status = NtOpenFile (&ph, access, &attr, &io, sharing, 0);
if (NT_SUCCESS (status))
set_handle (ph);
return status;
}
@ -472,16 +469,19 @@ fhandler_fifo::open (int flags, mode_t)
/* If we're a duplexer, create the pipe and the first client handler. */
if (duplexer)
{
HANDLE ph = NULL;
if (add_client_handler () < 0)
{
res = error_errno_set;
goto out;
}
NTSTATUS status = open_pipe ();
NTSTATUS status = open_pipe (ph);
if (NT_SUCCESS (status))
{
record_connection (fc_handler[0]);
set_pipe_non_blocking (get_handle (), flags & O_NONBLOCK);
set_handle (ph);
set_pipe_non_blocking (ph, flags & O_NONBLOCK);
}
else
{
@ -525,7 +525,7 @@ fhandler_fifo::open (int flags, mode_t)
res = error_errno_set;
goto out;
}
NTSTATUS status = open_pipe ();
NTSTATUS status = open_pipe (get_handle ());
if (NT_SUCCESS (status))
{
set_pipe_non_blocking (get_handle (), flags & O_NONBLOCK);