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4763ca1376
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@309 fefdeb5f-60dc-0310-8127-8f9354f1896f
71 lines
2.9 KiB
C
71 lines
2.9 KiB
C
#ifndef fooiochannelhfoo
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#define fooiochannelhfoo
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/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#include <sys/types.h>
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#include "mainloop-api.h"
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/* A wrapper around UNIX file descriptors for attaching them to the a
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main event loop. Everytime new data may be read or be written to
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the channel a callback function is called. It is safe to destroy
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the calling iochannel object from the callback */
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/* When pa_iochannel_is_readable() returns non-zero, the user has to
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* call this function in a loop until it is no longer set or EOF
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* reached. Otherwise strange things may happen when an EOF is
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* reached. */
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struct pa_iochannel;
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/* Create a new IO channel for the specified file descriptors for
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input resp. output. It is safe to pass the same file descriptor for
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both parameters (in case of full-duplex channels). For a simplex
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channel specify -1 for the other direction. */
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struct pa_iochannel* pa_iochannel_new(struct pa_mainloop_api*m, int ifd, int ofd);
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void pa_iochannel_free(struct pa_iochannel*io);
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ssize_t pa_iochannel_write(struct pa_iochannel*io, const void*data, size_t l);
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ssize_t pa_iochannel_read(struct pa_iochannel*io, void*data, size_t l);
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int pa_iochannel_is_readable(struct pa_iochannel*io);
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int pa_iochannel_is_writable(struct pa_iochannel*io);
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int pa_iochannel_is_hungup(struct pa_iochannel*io);
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/* Don't close the file descirptors when the io channel is freed. By
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* default the file descriptors are closed. */
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void pa_iochannel_set_noclose(struct pa_iochannel*io, int b);
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/* Set the callback function that is called whenever data becomes available for read or write */
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void pa_iochannel_set_callback(struct pa_iochannel*io, void (*callback)(struct pa_iochannel*io, void *userdata), void *userdata);
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/* In case the file descriptor is a socket, return a pretty-printed string in *s which describes the peer connected */
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void pa_iochannel_socket_peer_to_string(struct pa_iochannel*io, char*s, size_t l);
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/* Use setsockopt() to tune the recieve and send buffers of TCP sockets */
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int pa_iochannel_socket_set_rcvbuf(struct pa_iochannel*io, size_t l);
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int pa_iochannel_socket_set_sndbuf(struct pa_iochannel*io, size_t l);
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struct pa_mainloop_api* pa_iochannel_get_mainloop_api(struct pa_iochannel *io);
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#endif
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