diff options
Diffstat (limited to 'polyp/iochannel.c')
-rw-r--r-- | polyp/iochannel.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/polyp/iochannel.c b/polyp/iochannel.c deleted file mode 100644 index 273d47e0..00000000 --- a/polyp/iochannel.c +++ /dev/null @@ -1,292 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - polypaudio is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdlib.h> -#include <assert.h> -#include <fcntl.h> -#include <unistd.h> - -#include "winsock.h" - -#include "iochannel.h" -#include "util.h" -#include "socket-util.h" -#include "xmalloc.h" - -struct pa_iochannel { - int ifd, ofd; - pa_mainloop_api* mainloop; - - pa_iochannel_callback_t callback; - void*userdata; - - int readable; - int writable; - int hungup; - - int no_close; - - pa_io_event* input_event, *output_event; -}; - -static void enable_mainloop_sources(pa_iochannel *io) { - assert(io); - - if (io->input_event == io->output_event && io->input_event) { - pa_io_event_flags_t f = PA_IO_EVENT_NULL; - assert(io->input_event); - - if (!io->readable) - f |= PA_IO_EVENT_INPUT; - if (!io->writable) - f |= PA_IO_EVENT_OUTPUT; - - io->mainloop->io_enable(io->input_event, f); - } else { - if (io->input_event) - io->mainloop->io_enable(io->input_event, io->readable ? PA_IO_EVENT_NULL : PA_IO_EVENT_INPUT); - if (io->output_event) - io->mainloop->io_enable(io->output_event, io->writable ? PA_IO_EVENT_NULL : PA_IO_EVENT_OUTPUT); - } -} - -static void callback(pa_mainloop_api* m, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) { - pa_iochannel *io = userdata; - int changed = 0; - - assert(m); - assert(e); - assert(fd >= 0); - assert(userdata); - - if ((f & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR)) && !io->hungup) { - io->hungup = 1; - changed = 1; - - if (e == io->input_event) { - io->mainloop->io_free(io->input_event); - io->input_event = NULL; - - if (io->output_event == e) - io->output_event = NULL; - } else if (e == io->output_event) { - io->mainloop->io_free(io->output_event); - io->output_event = NULL; - } - } else { - - if ((f & PA_IO_EVENT_INPUT) && !io->readable) { - io->readable = 1; - changed = 1; - assert(e == io->input_event); - } - - if ((f & PA_IO_EVENT_OUTPUT) && !io->writable) { - io->writable = 1; - changed = 1; - assert(e == io->output_event); - } - } - - if (changed) { - enable_mainloop_sources(io); - - if (io->callback) - io->callback(io, io->userdata); - } -} - -pa_iochannel* pa_iochannel_new(pa_mainloop_api*m, int ifd, int ofd) { - pa_iochannel *io; - - assert(m); - assert(ifd >= 0 || ofd >= 0); - - io = pa_xnew(pa_iochannel, 1); - io->ifd = ifd; - io->ofd = ofd; - io->mainloop = m; - - io->userdata = NULL; - io->callback = NULL; - io->readable = 0; - io->writable = 0; - io->hungup = 0; - io->no_close = 0; - - io->input_event = io->output_event = NULL; - - if (ifd == ofd) { - assert(ifd >= 0); - pa_make_nonblock_fd(io->ifd); - io->input_event = io->output_event = m->io_new(m, ifd, PA_IO_EVENT_INPUT|PA_IO_EVENT_OUTPUT, callback, io); - } else { - - if (ifd >= 0) { - pa_make_nonblock_fd(io->ifd); - io->input_event = m->io_new(m, ifd, PA_IO_EVENT_INPUT, callback, io); - } - - if (ofd >= 0) { - pa_make_nonblock_fd(io->ofd); - io->output_event = m->io_new(m, ofd, PA_IO_EVENT_OUTPUT, callback, io); - } - } - - return io; -} - -void pa_iochannel_free(pa_iochannel*io) { - assert(io); - - if (io->input_event) - io->mainloop->io_free(io->input_event); - - if (io->output_event && (io->output_event != io->input_event)) - io->mainloop->io_free(io->output_event); - - if (!io->no_close) { - if (io->ifd >= 0) - - close(io->ifd); - if (io->ofd >= 0 && io->ofd != io->ifd) - close(io->ofd); - } - - pa_xfree(io); -} - -int pa_iochannel_is_readable(pa_iochannel*io) { - assert(io); - - return io->readable || io->hungup; -} - -int pa_iochannel_is_writable(pa_iochannel*io) { - assert(io); - - return io->writable && !io->hungup; -} - -int pa_iochannel_is_hungup(pa_iochannel*io) { - assert(io); - - return io->hungup; -} - -ssize_t pa_iochannel_write(pa_iochannel*io, const void*data, size_t l) { - ssize_t r; - - assert(io); - assert(data); - assert(l); - assert(io->ofd >= 0); - -#ifdef OS_IS_WIN32 - r = send(io->ofd, data, l, 0); - if (r < 0) { - if (WSAGetLastError() != WSAENOTSOCK) { - errno = WSAGetLastError(); - return r; - } - } - - if (r < 0) -#endif - r = write(io->ofd, data, l); - if (r >= 0) { - io->writable = 0; - enable_mainloop_sources(io); - } - - return r; -} - -ssize_t pa_iochannel_read(pa_iochannel*io, void*data, size_t l) { - ssize_t r; - - assert(io); - assert(data); - assert(io->ifd >= 0); - -#ifdef OS_IS_WIN32 - r = recv(io->ifd, data, l, 0); - if (r < 0) { - if (WSAGetLastError() != WSAENOTSOCK) { - errno = WSAGetLastError(); - return r; - } - } - - if (r < 0) -#endif - r = read(io->ifd, data, l); - - if (r >= 0) { - io->readable = 0; - enable_mainloop_sources(io); - } - - return r; -} - -void pa_iochannel_set_callback(pa_iochannel*io, pa_iochannel_callback_t _callback, void *userdata) { - assert(io); - - io->callback = _callback; - io->userdata = userdata; -} - -void pa_iochannel_set_noclose(pa_iochannel*io, int b) { - assert(io); - - io->no_close = b; -} - -void pa_iochannel_socket_peer_to_string(pa_iochannel*io, char*s, size_t l) { - assert(io); - assert(s); - assert(l); - - pa_socket_peer_to_string(io->ifd, s, l); -} - -int pa_iochannel_socket_set_rcvbuf(pa_iochannel *io, size_t l) { - assert(io); - - return pa_socket_set_rcvbuf(io->ifd, l); -} - -int pa_iochannel_socket_set_sndbuf(pa_iochannel *io, size_t l) { - assert(io); - - return pa_socket_set_sndbuf(io->ofd, l); -} - -pa_mainloop_api* pa_iochannel_get_mainloop_api(pa_iochannel *io) { - assert(io); - - return io->mainloop; -} |