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authorLennart Poettering <lennart@poettering.net>2006-06-19 21:53:48 +0000
committerLennart Poettering <lennart@poettering.net>2006-06-19 21:53:48 +0000
commitf44ba092651aa75055e109e04b4164ea92ae7fdc (patch)
tree5dfe076191b32946e78edf64d584d0a65f320013 /src/polypcore/pstream.c
parentdd21f11deda64e65a6f75817496534c2c9dda1a8 (diff)
big s/polyp/pulse/g
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/polypcore/pstream.c')
-rw-r--r--src/polypcore/pstream.c589
1 files changed, 0 insertions, 589 deletions
diff --git a/src/polypcore/pstream.c b/src/polypcore/pstream.c
deleted file mode 100644
index 074cab91..00000000
--- a/src/polypcore/pstream.c
+++ /dev/null
@@ -1,589 +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 <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <unistd.h>
-
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-
-#include "winsock.h"
-
-#include <polyp/xmalloc.h>
-
-#include <polypcore/queue.h>
-#include <polypcore/log.h>
-#include <polypcore/core-scache.h>
-
-#include "pstream.h"
-
-enum {
- PA_PSTREAM_DESCRIPTOR_LENGTH,
- PA_PSTREAM_DESCRIPTOR_CHANNEL,
- PA_PSTREAM_DESCRIPTOR_OFFSET_HI,
- PA_PSTREAM_DESCRIPTOR_OFFSET_LO,
- PA_PSTREAM_DESCRIPTOR_SEEK,
- PA_PSTREAM_DESCRIPTOR_MAX
-};
-
-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 PA_SCACHE_ENTRY_SIZE_MAX /* allow uploading a single sample in one frame at max */
-
-struct item_info {
- enum { PA_PSTREAM_ITEM_PACKET, PA_PSTREAM_ITEM_MEMBLOCK } type;
-
- /* memblock info */
- pa_memchunk chunk;
- uint32_t channel;
- int64_t offset;
- pa_seek_mode_t seek_mode;
-
- /* packet info */
- pa_packet *packet;
-#ifdef SCM_CREDENTIALS
- int with_creds;
-#endif
-};
-
-struct pa_pstream {
- int ref;
-
- pa_mainloop_api *mainloop;
- pa_defer_event *defer_event;
- pa_iochannel *io;
- pa_queue *send_queue;
-
- int dead;
-
- 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;
-
- pa_pstream_packet_cb_t recieve_packet_callback;
- void *recieve_packet_callback_userdata;
-
- pa_pstream_memblock_cb_t recieve_memblock_callback;
- void *recieve_memblock_callback_userdata;
-
- pa_pstream_notify_cb_t drain_callback;
- void *drain_callback_userdata;
-
- pa_pstream_notify_cb_t die_callback;
- void *die_callback_userdata;
-
- pa_memblock_stat *memblock_stat;
-
-#ifdef SCM_CREDENTIALS
- int send_creds_now;
- struct ucred ucred;
- int creds_valid;
-#endif
-};
-
-static int do_write(pa_pstream *p);
-static int 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)) {
- if (do_read(p) < 0)
- goto fail;
- } else if (!p->dead && pa_iochannel_is_hungup(p->io))
- goto fail;
-
- if (!p->dead && pa_iochannel_is_writable(p->io)) {
- if (do_write(p) < 0)
- goto fail;
- }
-
- pa_pstream_unref(p);
- return;
-
-fail:
-
- p->dead = 1;
-
- if (p->die_callback)
- p->die_callback(p, p->die_callback_userdata);
-
- pa_pstream_unref(p);
-}
-
-static void io_callback(pa_iochannel*io, void *userdata) {
- pa_pstream *p = userdata;
-
- assert(p);
- assert(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);
- assert(p->defer_event == e);
- assert(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_xnew(pa_pstream, 1);
-
- p->ref = 1;
- p->io = io;
- pa_iochannel_set_callback(io, io_callback, p);
-
- p->dead = 0;
-
- 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_callback_userdata = NULL;
-
- p->die_callback = NULL;
- p->die_callback_userdata = NULL;
-
- p->memblock_stat = s;
-
- pa_iochannel_socket_set_rcvbuf(io, 1024*8);
- pa_iochannel_socket_set_sndbuf(io, 1024*8);
-
-#ifdef SCM_CREDENTIALS
- p->send_creds_now = 0;
- p->creds_valid = 0;
-#endif
- 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, int with_creds) {
- struct item_info *i;
- assert(p && packet && p->ref >= 1);
-
- if (p->dead)
- return;
-
-/* pa_log(__FILE__": push-packet %p", packet); */
-
- i = pa_xnew(struct item_info, 1);
- i->type = PA_PSTREAM_ITEM_PACKET;
- i->packet = pa_packet_ref(packet);
-#ifdef SCM_CREDENTIALS
- i->with_creds = with_creds;
-#endif
-
- 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, int64_t offset, pa_seek_mode_t seek_mode, 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", chunk); */
-
- i = pa_xnew(struct item_info, 1);
- i->type = PA_PSTREAM_ITEM_MEMBLOCK;
- i->chunk = *chunk;
- i->channel = channel;
- i->offset = offset;
- i->seek_mode = seek_mode;
-
- pa_memblock_ref(i->chunk.memblock);
-
- pa_queue_push(p->send_queue, i);
- p->mainloop->defer_enable(p->defer_event, 1);
-}
-
-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", 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_OFFSET_HI] = 0;
- p->write.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_LO] = 0;
- p->write.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK] = 0;
-
-#ifdef SCM_CREDENTIALS
- p->send_creds_now = 1;
-#endif
-
- } 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_OFFSET_HI] = htonl((uint32_t) (((uint64_t) p->write.current->offset) >> 32));
- p->write.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_LO] = htonl((uint32_t) ((uint64_t) p->write.current->offset));
- p->write.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK] = htonl(p->write.current->seek_mode);
-
-#ifdef SCM_CREDENTIALS
- p->send_creds_now = 1;
-#endif
- }
-}
-
-static int 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 0;
-
- 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);
- }
-
-#ifdef SCM_CREDENTIALS
- if (p->send_creds_now) {
-
- if ((r = pa_iochannel_write_with_creds(p->io, d, l)) < 0)
- return -1;
-
- p->send_creds_now = 0;
- } else
-#endif
-
- if ((r = pa_iochannel_write(p->io, d, l)) < 0)
- return -1;
-
- 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_callback_userdata);
- }
-
- return 0;
-}
-
-static int 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);
- }
-
-#ifdef SCM_CREDENTIALS
- {
- int b;
-
- if ((r = pa_iochannel_read_with_creds(p->io, d, l, &p->ucred, &b)) <= 0)
- return -1;
-
- p->creds_valid = p->creds_valid || b;
- }
-#else
- if ((r = pa_iochannel_read(p->io, d, l)) <= 0)
- return -1;
-#endif
-
- 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_warn(__FILE__": Frame size too large: %lu > %lu", (unsigned long) ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]), (unsigned long) FRAME_SIZE_MAX);
- return -1;
- }
-
- 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]));
- 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);
- p->read.data = p->read.memblock->data;
-
- if (ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK]) > PA_SEEK_RELATIVE_END) {
- pa_log_warn(__FILE__": Invalid seek mode");
- return -1;
- }
- }
-
- } 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) {
- int64_t offset;
-
- offset = (int64_t) (
- (((uint64_t) ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI])) << 32) |
- (((uint64_t) ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_LO]))));
-
- p->recieve_memblock_callback(
- p,
- ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL]),
- offset,
- ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK]),
- &chunk,
- p->recieve_memblock_callback_userdata);
- }
-
- /* Drop seek info for following callbacks */
- p->read.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK] =
- p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI] =
- p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_LO] = 0;
- }
- }
-
- /* 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)
-#ifdef SCM_CREDENTIALS
- p->recieve_packet_callback(p, p->read.packet, p->creds_valid ? &p->ucred : NULL, p->recieve_packet_callback_userdata);
-#else
- p->recieve_packet_callback(p, p->read.packet, NULL, p->recieve_packet_callback_userdata);
-#endif
-
- pa_packet_unref(p->read.packet);
- p->read.packet = NULL;
- }
-
- p->read.index = 0;
-#ifdef SCM_CREDENTIALS
- p->creds_valid = 0;
-#endif
- }
- }
-
- return 0;
-}
-
-void pa_pstream_set_die_callback(pa_pstream *p, pa_pstream_notify_cb_t cb, void *userdata) {
- assert(p);
- assert(p->ref >= 1);
-
- p->die_callback = cb;
- p->die_callback_userdata = userdata;
-}
-
-
-void pa_pstream_set_drain_callback(pa_pstream *p, pa_pstream_notify_cb_t cb, void *userdata) {
- assert(p);
- assert(p->ref >= 1);
-
- p->drain_callback = cb;
- p->drain_callback_userdata = userdata;
-}
-
-void pa_pstream_set_recieve_packet_callback(pa_pstream *p, pa_pstream_packet_cb_t cb, void *userdata) {
- assert(p);
- assert(p->ref >= 1);
-
- p->recieve_packet_callback = cb;
- p->recieve_packet_callback_userdata = userdata;
-}
-
-void pa_pstream_set_recieve_memblock_callback(pa_pstream *p, pa_pstream_memblock_cb_t cb, void *userdata) {
- assert(p);
- assert(p->ref >= 1);
-
- p->recieve_memblock_callback = cb;
- p->recieve_memblock_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_unref(pa_pstream*p) {
- assert(p);
- assert(p->ref >= 1);
-
- if (--p->ref == 0)
- pstream_free(p);
-}
-
-pa_pstream* pa_pstream_ref(pa_pstream*p) {
- assert(p);
- assert(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;
-}