From e205b25d65ccb380fa158711e24d55b6de5d9bc1 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Thu, 16 Feb 2006 19:19:58 +0000 Subject: Reorganised the source tree. We now have src/ with a couple of subdirs: * daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f --- polyp/pstream.c | 492 -------------------------------------------------------- 1 file changed, 492 deletions(-) delete mode 100644 polyp/pstream.c (limited to 'polyp/pstream.c') diff --git a/polyp/pstream.c b/polyp/pstream.c deleted file mode 100644 index bd00ba4f..00000000 --- a/polyp/pstream.c +++ /dev/null @@ -1,492 +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 -#endif - -#include -#include -#include -#include - -#ifdef HAVE_NETINET_IN_H -#include -#endif - -#include "winsock.h" - -#include "pstream.h" -#include "queue.h" -#include "xmalloc.h" -#include "log.h" - -typedef enum pa_pstream_descriptor_index { - PA_PSTREAM_DESCRIPTOR_LENGTH, - PA_PSTREAM_DESCRIPTOR_CHANNEL, - PA_PSTREAM_DESCRIPTOR_DELTA, - PA_PSTREAM_DESCRIPTOR_MAX -} pa_pstream_descriptor_index; - -typedef uint32_t pa_pstream_descriptor[PA_PSTREAM_DESCRIPTOR_MAX]; - -#define PA_PSTREAM_DESCRIPTOR_SIZE (PA_PSTREAM_DESCRIPTOR_MAX*sizeof(uint32_t)) -#define FRAME_SIZE_MAX (1024*500) /* half a megabyte */ - -struct item_info { - enum { PA_PSTREAM_ITEM_PACKET, PA_PSTREAM_ITEM_MEMBLOCK } type; - - /* memblock info */ - pa_memchunk chunk; - uint32_t channel; - uint32_t delta; - - /* packet info */ - pa_packet *packet; -}; - -struct pa_pstream { - int ref; - - pa_mainloop_api *mainloop; - pa_defer_event *defer_event; - pa_iochannel *io; - pa_queue *send_queue; - - int dead; - void (*die_callback) (pa_pstream *p, void *userdata); - void *die_callback_userdata; - - struct { - struct item_info* current; - pa_pstream_descriptor descriptor; - void *data; - size_t index; - } write; - - struct { - pa_memblock *memblock; - pa_packet *packet; - pa_pstream_descriptor descriptor; - void *data; - size_t index; - } read; - - void (*recieve_packet_callback) (pa_pstream *p, pa_packet *packet, void *userdata); - void *recieve_packet_callback_userdata; - - void (*recieve_memblock_callback) (pa_pstream *p, uint32_t channel, uint32_t delta, const pa_memchunk *chunk, void *userdata); - void *recieve_memblock_callback_userdata; - - void (*drain_callback)(pa_pstream *p, void *userdata); - void *drain_userdata; - - pa_memblock_stat *memblock_stat; -}; - -static void do_write(pa_pstream *p); -static void do_read(pa_pstream *p); - -static void do_something(pa_pstream *p) { - assert(p); - - p->mainloop->defer_enable(p->defer_event, 0); - - pa_pstream_ref(p); - - if (!p->dead && pa_iochannel_is_readable(p->io)) - do_read(p); - - if (!p->dead && pa_iochannel_is_writable(p->io)) - do_write(p); - - /* In case the line was hungup, make sure to rerun this function - as soon as possible, until all data has been read. */ - - if (!p->dead && pa_iochannel_is_hungup(p->io)) - p->mainloop->defer_enable(p->defer_event, 1); - - pa_pstream_unref(p); -} - -static void io_callback(pa_iochannel*io, void *userdata) { - pa_pstream *p = userdata; - assert(p && p->io == io); - do_something(p); -} - -static void defer_callback(pa_mainloop_api *m, pa_defer_event *e, void*userdata) { - pa_pstream *p = userdata; - assert(p && p->defer_event == e && p->mainloop == m); - do_something(p); -} - -pa_pstream *pa_pstream_new(pa_mainloop_api *m, pa_iochannel *io, pa_memblock_stat *s) { - pa_pstream *p; - assert(io); - - p = pa_xmalloc(sizeof(pa_pstream)); - p->ref = 1; - p->io = io; - pa_iochannel_set_callback(io, io_callback, p); - - p->dead = 0; - p->die_callback = NULL; - p->die_callback_userdata = NULL; - - p->mainloop = m; - p->defer_event = m->defer_new(m, defer_callback, p); - m->defer_enable(p->defer_event, 0); - - p->send_queue = pa_queue_new(); - assert(p->send_queue); - - p->write.current = NULL; - p->write.index = 0; - - p->read.memblock = NULL; - p->read.packet = NULL; - p->read.index = 0; - - p->recieve_packet_callback = NULL; - p->recieve_packet_callback_userdata = NULL; - - p->recieve_memblock_callback = NULL; - p->recieve_memblock_callback_userdata = NULL; - - p->drain_callback = NULL; - p->drain_userdata = NULL; - - p->memblock_stat = s; - - pa_iochannel_socket_set_rcvbuf(io, 1024*8); - pa_iochannel_socket_set_sndbuf(io, 1024*8); - - return p; -} - -static void item_free(void *item, PA_GCC_UNUSED void *p) { - struct item_info *i = item; - assert(i); - - if (i->type == PA_PSTREAM_ITEM_MEMBLOCK) { - assert(i->chunk.memblock); - pa_memblock_unref(i->chunk.memblock); - } else { - assert(i->type == PA_PSTREAM_ITEM_PACKET); - assert(i->packet); - pa_packet_unref(i->packet); - } - - pa_xfree(i); -} - -static void pstream_free(pa_pstream *p) { - assert(p); - - pa_pstream_close(p); - - pa_queue_free(p->send_queue, item_free, NULL); - - if (p->write.current) - item_free(p->write.current, NULL); - - if (p->read.memblock) - pa_memblock_unref(p->read.memblock); - - if (p->read.packet) - pa_packet_unref(p->read.packet); - - pa_xfree(p); -} - -void pa_pstream_send_packet(pa_pstream*p, pa_packet *packet) { - struct item_info *i; - assert(p && packet && p->ref >= 1); - - if (p->dead) - return; - -/* pa_log(__FILE__": push-packet %p\n", packet); */ - - i = pa_xmalloc(sizeof(struct item_info)); - i->type = PA_PSTREAM_ITEM_PACKET; - i->packet = pa_packet_ref(packet); - - pa_queue_push(p->send_queue, i); - p->mainloop->defer_enable(p->defer_event, 1); -} - -void pa_pstream_send_memblock(pa_pstream*p, uint32_t channel, uint32_t delta, const pa_memchunk *chunk) { - struct item_info *i; - assert(p && channel != (uint32_t) -1 && chunk && p->ref >= 1); - - if (p->dead) - return; - -/* pa_log(__FILE__": push-memblock %p\n", chunk); */ - - i = pa_xmalloc(sizeof(struct item_info)); - i->type = PA_PSTREAM_ITEM_MEMBLOCK; - i->chunk = *chunk; - i->channel = channel; - i->delta = delta; - - pa_memblock_ref(i->chunk.memblock); - - pa_queue_push(p->send_queue, i); - p->mainloop->defer_enable(p->defer_event, 1); -} - -void pa_pstream_set_recieve_packet_callback(pa_pstream *p, void (*callback) (pa_pstream *p, pa_packet *packet, void *userdata), void *userdata) { - assert(p && callback); - - p->recieve_packet_callback = callback; - p->recieve_packet_callback_userdata = userdata; -} - -void pa_pstream_set_recieve_memblock_callback(pa_pstream *p, void (*callback) (pa_pstream *p, uint32_t channel, uint32_t delta, const pa_memchunk *chunk, void *userdata), void *userdata) { - assert(p && callback); - - p->recieve_memblock_callback = callback; - p->recieve_memblock_callback_userdata = userdata; -} - -static void prepare_next_write_item(pa_pstream *p) { - assert(p); - - if (!(p->write.current = pa_queue_pop(p->send_queue))) - return; - - p->write.index = 0; - - if (p->write.current->type == PA_PSTREAM_ITEM_PACKET) { - /*pa_log(__FILE__": pop-packet %p\n", p->write.current->packet);*/ - - assert(p->write.current->packet); - p->write.data = p->write.current->packet->data; - p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH] = htonl(p->write.current->packet->length); - p->write.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL] = htonl((uint32_t) -1); - p->write.descriptor[PA_PSTREAM_DESCRIPTOR_DELTA] = 0; - } else { - assert(p->write.current->type == PA_PSTREAM_ITEM_MEMBLOCK && p->write.current->chunk.memblock); - p->write.data = (uint8_t*) p->write.current->chunk.memblock->data + p->write.current->chunk.index; - p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH] = htonl(p->write.current->chunk.length); - p->write.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL] = htonl(p->write.current->channel); - p->write.descriptor[PA_PSTREAM_DESCRIPTOR_DELTA] = htonl(p->write.current->delta); - } -} - -static void do_write(pa_pstream *p) { - void *d; - size_t l; - ssize_t r; - assert(p); - - if (!p->write.current) - prepare_next_write_item(p); - - if (!p->write.current) - return; - - assert(p->write.data); - - if (p->write.index < PA_PSTREAM_DESCRIPTOR_SIZE) { - d = (uint8_t*) p->write.descriptor + p->write.index; - l = PA_PSTREAM_DESCRIPTOR_SIZE - p->write.index; - } else { - d = (uint8_t*) p->write.data + p->write.index - PA_PSTREAM_DESCRIPTOR_SIZE; - l = ntohl(p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) - (p->write.index - PA_PSTREAM_DESCRIPTOR_SIZE); - } - - if ((r = pa_iochannel_write(p->io, d, l)) < 0) - goto die; - - p->write.index += r; - - if (p->write.index >= PA_PSTREAM_DESCRIPTOR_SIZE+ntohl(p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH])) { - assert(p->write.current); - item_free(p->write.current, (void *) 1); - p->write.current = NULL; - - if (p->drain_callback && !pa_pstream_is_pending(p)) - p->drain_callback(p, p->drain_userdata); - } - - return; - -die: - p->dead = 1; - if (p->die_callback) - p->die_callback(p, p->die_callback_userdata); -} - -static void do_read(pa_pstream *p) { - void *d; - size_t l; - ssize_t r; - assert(p); - - if (p->read.index < PA_PSTREAM_DESCRIPTOR_SIZE) { - d = (uint8_t*) p->read.descriptor + p->read.index; - l = PA_PSTREAM_DESCRIPTOR_SIZE - p->read.index; - } else { - assert(p->read.data); - d = (uint8_t*) p->read.data + p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE; - l = ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) - (p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE); - } - - if ((r = pa_iochannel_read(p->io, d, l)) <= 0) - goto die; - - p->read.index += r; - - if (p->read.index == PA_PSTREAM_DESCRIPTOR_SIZE) { - /* Reading of frame descriptor complete */ - - /* Frame size too large */ - if (ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) > FRAME_SIZE_MAX) { - pa_log(__FILE__": Frame size too large\n"); - goto die; - } - - assert(!p->read.packet && !p->read.memblock); - - if (ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL]) == (uint32_t) -1) { - /* Frame is a packet frame */ - p->read.packet = pa_packet_new(ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH])); - assert(p->read.packet); - p->read.data = p->read.packet->data; - } else { - /* Frame is a memblock frame */ - p->read.memblock = pa_memblock_new(ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]), p->memblock_stat); - assert(p->read.memblock); - p->read.data = p->read.memblock->data; - } - - } else if (p->read.index > PA_PSTREAM_DESCRIPTOR_SIZE) { - /* Frame payload available */ - - if (p->read.memblock && p->recieve_memblock_callback) { /* Is this memblock data? Than pass it to the user */ - l = (p->read.index - r) < PA_PSTREAM_DESCRIPTOR_SIZE ? p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE : (size_t) r; - - if (l > 0) { - pa_memchunk chunk; - - chunk.memblock = p->read.memblock; - chunk.index = p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE - l; - chunk.length = l; - - if (p->recieve_memblock_callback) - p->recieve_memblock_callback( - p, - ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL]), - ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_DELTA]), - &chunk, - p->recieve_memblock_callback_userdata); - } - } - - /* Frame complete */ - if (p->read.index >= ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) + PA_PSTREAM_DESCRIPTOR_SIZE) { - if (p->read.memblock) { - assert(!p->read.packet); - - pa_memblock_unref(p->read.memblock); - p->read.memblock = NULL; - } else { - assert(p->read.packet); - - if (p->recieve_packet_callback) - p->recieve_packet_callback(p, p->read.packet, p->recieve_packet_callback_userdata); - - pa_packet_unref(p->read.packet); - p->read.packet = NULL; - } - - p->read.index = 0; - } - } - - return; - -die: - p->dead = 1; - if (p->die_callback) - p->die_callback(p, p->die_callback_userdata); - -} - -void pa_pstream_set_die_callback(pa_pstream *p, void (*callback)(pa_pstream *p, void *userdata), void *userdata) { - assert(p && callback); - p->die_callback = callback; - p->die_callback_userdata = userdata; -} - -int pa_pstream_is_pending(pa_pstream *p) { - assert(p); - - if (p->dead) - return 0; - - return p->write.current || !pa_queue_is_empty(p->send_queue); -} - -void pa_pstream_set_drain_callback(pa_pstream *p, void (*cb)(pa_pstream *p, void *userdata), void *userdata) { - assert(p); - - p->drain_callback = cb; - p->drain_userdata = userdata; -} - -void pa_pstream_unref(pa_pstream*p) { - assert(p && p->ref >= 1); - - if (!(--(p->ref))) - pstream_free(p); -} - -pa_pstream* pa_pstream_ref(pa_pstream*p) { - assert(p && p->ref >= 1); - p->ref++; - return p; -} - -void pa_pstream_close(pa_pstream *p) { - assert(p); - - p->dead = 1; - - if (p->io) { - pa_iochannel_free(p->io); - p->io = NULL; - } - - if (p->defer_event) { - p->mainloop->defer_free(p->defer_event); - p->defer_event = NULL; - } - - p->die_callback = NULL; - p->drain_callback = NULL; - p->recieve_packet_callback = NULL; - p->recieve_memblock_callback = NULL; -} -- cgit