Cygwin: FIFO: simplify the fifo_client_handler structure
Replace the 'fhandler_base *' member by a HANDLE to the server side of the Windows named pipe instance. Make the corresponding simplifications throughout.
This commit is contained in:
@ -252,7 +252,6 @@ fhandler_fifo::add_client_handler ()
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{
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int ret = -1;
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fifo_client_handler fc;
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fhandler_base *fh;
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HANDLE ph = NULL;
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bool first = (nhandlers == 0);
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@ -261,40 +260,26 @@ fhandler_fifo::add_client_handler ()
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set_errno (EMFILE);
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goto out;
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}
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if (!(fh = build_fh_dev (dev ())))
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{
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set_errno (EMFILE);
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goto out;
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}
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ph = create_pipe_instance (first);
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if (!ph)
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{
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delete fh;
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goto out;
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}
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goto out;
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else
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{
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fh->set_handle (ph);
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fh->set_flags ((openflags & ~O_ACCMODE) | O_RDONLY);
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fh->set_nonblocking (false);
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ret = 0;
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fc.fh = fh;
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fifo_client_lock ();
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fc.h = ph;
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fc_handler[nhandlers++] = fc;
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fifo_client_unlock ();
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}
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out:
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return ret;
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}
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int
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void
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fhandler_fifo::delete_client_handler (int i)
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{
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int ret = fc_handler[i].close ();
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fc_handler[i].close ();
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if (i < --nhandlers)
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memmove (fc_handler + i, fc_handler + i + 1,
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(nhandlers - i) * sizeof (fc_handler[i]));
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return ret;
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}
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/* Just hop to the listen_client_thread method. */
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@ -331,8 +316,7 @@ fhandler_fifo::record_connection (fifo_client_handler& fc)
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SetEvent (write_ready);
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fc.state = fc_connected;
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nconnected++;
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fc.fh->set_nonblocking (true);
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set_pipe_non_blocking (fc.fh->get_handle (), true);
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set_pipe_non_blocking (fc.h, true);
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}
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DWORD
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@ -355,13 +339,7 @@ fhandler_fifo::listen_client_thread ()
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while (i < nhandlers)
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{
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if (fc_handler[i].state == fc_invalid)
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{
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if (delete_client_handler (i) < 0)
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{
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fifo_client_unlock ();
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goto out;
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}
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}
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delete_client_handler (i);
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else
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i++;
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}
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@ -383,7 +361,7 @@ fhandler_fifo::listen_client_thread ()
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NTSTATUS status;
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IO_STATUS_BLOCK io;
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status = NtFsControlFile (fc.fh->get_handle (), evt, NULL, NULL, &io,
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status = NtFsControlFile (fc.h, evt, NULL, NULL, &io,
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FSCTL_PIPE_LISTEN, NULL, 0, NULL, 0);
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if (status == STATUS_PENDING)
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{
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@ -424,8 +402,7 @@ fhandler_fifo::listen_client_thread ()
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&& (NT_SUCCESS (io.Status) || io.Status == STATUS_PIPE_CONNECTED))
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{
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debug_printf ("successfully connected bogus client");
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if (delete_client_handler (nhandlers - 1) < 0)
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ret = -1;
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delete_client_handler (nhandlers - 1);
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}
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else if ((ps = fc.pipe_state ()) == FILE_PIPE_CONNECTED_STATE
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|| ps == FILE_PIPE_INPUT_AVAILABLE_STATE)
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@ -948,19 +925,6 @@ fhandler_fifo::fstatvfs (struct statvfs *sfs)
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return fh.fstatvfs (sfs);
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}
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int
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fifo_client_handler::close ()
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{
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int res = 0;
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if (fh)
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{
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res = fh->fhandler_base::close ();
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delete fh;
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}
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return res;
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}
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int
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fifo_client_handler::pipe_state ()
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{
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@ -968,7 +932,7 @@ fifo_client_handler::pipe_state ()
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FILE_PIPE_LOCAL_INFORMATION fpli;
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NTSTATUS status;
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status = NtQueryInformationFile (fh->get_handle (), &io, &fpli,
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status = NtQueryInformationFile (h, &io, &fpli,
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sizeof (fpli), FilePipeLocalInformation);
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if (!NT_SUCCESS (status))
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{
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@ -1022,8 +986,7 @@ fhandler_fifo::close ()
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NtClose (write_ready);
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fifo_client_lock ();
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for (int i = 0; i < nhandlers; i++)
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if (fc_handler[i].close () < 0)
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ret = -1;
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fc_handler[i].close ();
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fifo_client_unlock ();
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return fhandler_base::close () || ret;
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}
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@ -1078,9 +1041,9 @@ fhandler_fifo::dup (fhandler_base *child, int flags)
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fifo_client_lock ();
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for (int i = 0; i < nhandlers; i++)
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{
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if (!DuplicateHandle (GetCurrentProcess (), fc_handler[i].fh->get_handle (),
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if (!DuplicateHandle (GetCurrentProcess (), fc_handler[i].h,
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GetCurrentProcess (),
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&fhf->fc_handler[i].fh->get_handle (),
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&fhf->fc_handler[i].h,
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0, true, DUPLICATE_SAME_ACCESS))
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{
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fifo_client_unlock ();
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@ -1114,7 +1077,7 @@ fhandler_fifo::fixup_after_fork (HANDLE parent)
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fork_fixup (parent, write_ready, "write_ready");
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fifo_client_lock ();
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for (int i = 0; i < nhandlers; i++)
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fc_handler[i].fh->fhandler_base::fixup_after_fork (parent);
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fork_fixup (parent, fc_handler[i].h, "fc_handler[].h");
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fifo_client_unlock ();
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if (reader && !listen_client ())
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debug_printf ("failed to start lct, %E");
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@ -1136,6 +1099,6 @@ fhandler_fifo::set_close_on_exec (bool val)
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set_no_inheritance (write_ready, val);
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fifo_client_lock ();
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for (int i = 0; i < nhandlers; i++)
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fc_handler[i].fh->fhandler_base::set_close_on_exec (val);
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set_no_inheritance (fc_handler[i].h, val);
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fifo_client_unlock ();
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}
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