-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
PulseAudio 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.
-
+
PulseAudio 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 PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
#include <stdio.h>
#include <stdlib.h>
-#include <assert.h>
#include <unistd.h>
#ifdef HAVE_SYS_SOCKET_H
#include <netinet/in.h>
#endif
-#include "winsock.h"
#include <pulse/xmalloc.h>
+#include <pulsecore/winsock.h>
#include <pulsecore/queue.h>
#include <pulsecore/log.h>
#include <pulsecore/core-scache.h>
#include <pulsecore/creds.h>
-#include <pulsecore/mutex.h>
#include <pulsecore/refcnt.h>
+#include <pulsecore/flist.h>
+#include <pulsecore/macro.h>
#include "pstream.h"
#define PA_PSTREAM_DESCRIPTOR_SIZE (PA_PSTREAM_DESCRIPTOR_MAX*sizeof(uint32_t))
#define FRAME_SIZE_MAX_ALLOW PA_SCACHE_ENTRY_SIZE_MAX /* allow uploading a single sample in one frame at max */
-#define FRAME_SIZE_MAX_USE (1024*64)
+
+PA_STATIC_FLIST_DECLARE(items, 0, pa_xfree);
struct item_info {
enum {
PA_PSTREAM_ITEM_SHMREVOKE
} type;
-
/* packet info */
pa_packet *packet;
#ifdef HAVE_CREDS
- int with_creds;
+ pa_bool_t with_creds;
pa_creds creds;
#endif
struct pa_pstream {
PA_REFCNT_DECLARE;
-
+
pa_mainloop_api *mainloop;
pa_defer_event *defer_event;
pa_iochannel *io;
+
pa_queue *send_queue;
- pa_mutex *mutex;
- int dead;
+ pa_bool_t dead;
struct {
pa_pstream_descriptor descriptor;
uint32_t shm_info[PA_PSTREAM_SHM_MAX];
void *data;
size_t index;
+ pa_memchunk memchunk;
} write;
struct {
size_t index;
} read;
- int use_shm;
+ pa_bool_t use_shm;
pa_memimport *import;
pa_memexport *export;
pa_pstream_notify_cb_t die_callback;
void *die_callback_userdata;
+ pa_pstream_block_id_cb_t revoke_callback;
+ void *revoke_callback_userdata;
+
+ pa_pstream_block_id_cb_t release_callback;
+ void *release_callback_userdata;
+
pa_mempool *mempool;
#ifdef HAVE_CREDS
pa_creds read_creds, write_creds;
- int read_creds_valid, send_creds_now;
+ pa_bool_t read_creds_valid, send_creds_now;
#endif
};
static int do_read(pa_pstream *p);
static void do_something(pa_pstream *p) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
pa_pstream_ref(p);
- pa_mutex_lock(p->mutex);
-
p->mainloop->defer_enable(p->defer_event, 0);
if (!p->dead && pa_iochannel_is_readable(p->io)) {
goto fail;
}
- pa_mutex_unlock(p->mutex);
-
pa_pstream_unref(p);
return;
fail:
- p->dead = 1;
-
if (p->die_callback)
p->die_callback(p, p->die_callback_userdata);
-
- pa_mutex_unlock(p->mutex);
-
+
+ pa_pstream_unlink(p);
pa_pstream_unref(p);
}
static void io_callback(pa_iochannel*io, void *userdata) {
pa_pstream *p = userdata;
-
- assert(p);
- assert(p->io == io);
-
+
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+ pa_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);
-
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(p->defer_event == e);
+ pa_assert(p->mainloop == m);
+
do_something(p);
}
pa_pstream *pa_pstream_new(pa_mainloop_api *m, pa_iochannel *io, pa_mempool *pool) {
pa_pstream *p;
-
- assert(m);
- assert(io);
- assert(pool);
+
+ pa_assert(m);
+ pa_assert(io);
+ pa_assert(pool);
p = pa_xnew(pa_pstream, 1);
PA_REFCNT_INIT(p);
p->io = io;
pa_iochannel_set_callback(io, io_callback, p);
- p->dead = 0;
-
- p->mutex = pa_mutex_new(1);
+ p->dead = FALSE;
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;
+ pa_memchunk_reset(&p->write.memchunk);
p->read.memblock = NULL;
p->read.packet = NULL;
p->read.index = 0;
p->drain_callback_userdata = NULL;
p->die_callback = NULL;
p->die_callback_userdata = NULL;
+ p->revoke_callback = NULL;
+ p->revoke_callback_userdata = NULL;
+ p->release_callback = NULL;
+ p->release_callback_userdata = NULL;
p->mempool = pool;
- p->use_shm = 0;
+ p->use_shm = FALSE;
p->export = NULL;
/* We do importing unconditionally */
p->import = pa_memimport_new(p->mempool, memimport_release_cb, p);
- pa_iochannel_socket_set_rcvbuf(io, 1024*8);
- pa_iochannel_socket_set_sndbuf(io, 1024*8);
+ pa_iochannel_socket_set_rcvbuf(io, pa_mempool_block_size_max(p->mempool));
+ pa_iochannel_socket_set_sndbuf(io, pa_mempool_block_size_max(p->mempool));
#ifdef HAVE_CREDS
- p->send_creds_now = 0;
- p->read_creds_valid = 0;
+ p->send_creds_now = FALSE;
+ p->read_creds_valid = FALSE;
#endif
return p;
}
-static void item_free(void *item, PA_GCC_UNUSED void *p) {
+static void item_free(void *item, void *q) {
struct item_info *i = item;
- assert(i);
+ pa_assert(i);
if (i->type == PA_PSTREAM_ITEM_MEMBLOCK) {
- assert(i->chunk.memblock);
+ pa_assert(i->chunk.memblock);
pa_memblock_unref(i->chunk.memblock);
} else if (i->type == PA_PSTREAM_ITEM_PACKET) {
- assert(i->packet);
+ pa_assert(i->packet);
pa_packet_unref(i->packet);
}
- pa_xfree(i);
+ if (pa_flist_push(PA_STATIC_FLIST_GET(items), i) < 0)
+ pa_xfree(i);
}
static void pstream_free(pa_pstream *p) {
- assert(p);
+ pa_assert(p);
+
+ pa_pstream_unlink(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->write.memchunk.memblock)
+ pa_memblock_unref(p->write.memchunk.memblock);
+
if (p->read.memblock)
pa_memblock_unref(p->read.memblock);
-
+
if (p->read.packet)
pa_packet_unref(p->read.packet);
- if (p->mutex)
- pa_mutex_free(p->mutex);
-
pa_xfree(p);
}
void pa_pstream_send_packet(pa_pstream*p, pa_packet *packet, const pa_creds *creds) {
struct item_info *i;
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
- assert(packet);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(packet);
- pa_mutex_lock(p->mutex);
-
if (p->dead)
- goto finish;
-
- i = pa_xnew(struct item_info, 1);
+ return;
+
+ if (!(i = pa_flist_pop(PA_STATIC_FLIST_GET(items))))
+ i = pa_xnew(struct item_info, 1);
+
i->type = PA_PSTREAM_ITEM_PACKET;
i->packet = pa_packet_ref(packet);
-
+
#ifdef HAVE_CREDS
if ((i->with_creds = !!creds))
i->creds = *creds;
#endif
pa_queue_push(p->send_queue, i);
- p->mainloop->defer_enable(p->defer_event, 1);
-
-finish:
- pa_mutex_unlock(p->mutex);
+ 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) {
size_t length, idx;
-
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
- assert(channel != (uint32_t) -1);
- assert(chunk);
-
- pa_mutex_lock(p->mutex);
-
+ size_t bsm;
+
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(channel != (uint32_t) -1);
+ pa_assert(chunk);
+
if (p->dead)
- goto finish;
+ return;
- length = chunk->length;
idx = 0;
+ length = chunk->length;
+
+ bsm = pa_mempool_block_size_max(p->mempool);
while (length > 0) {
struct item_info *i;
size_t n;
-
- i = pa_xnew(struct item_info, 1);
+
+ if (!(i = pa_flist_pop(PA_STATIC_FLIST_GET(items))))
+ i = pa_xnew(struct item_info, 1);
i->type = PA_PSTREAM_ITEM_MEMBLOCK;
- n = length < FRAME_SIZE_MAX_USE ? length : FRAME_SIZE_MAX_USE;
+ n = PA_MIN(length, bsm);
i->chunk.index = chunk->index + idx;
i->chunk.length = n;
i->chunk.memblock = pa_memblock_ref(chunk->memblock);
-
+
i->channel = channel;
i->offset = offset;
i->seek_mode = seek_mode;
#ifdef HAVE_CREDS
- i->with_creds = 0;
+ i->with_creds = FALSE;
#endif
-
+
pa_queue_push(p->send_queue, i);
idx += n;
length -= n;
}
-
- p->mainloop->defer_enable(p->defer_event, 1);
-finish:
-
- pa_mutex_unlock(p->mutex);
+ p->mainloop->defer_enable(p->defer_event, 1);
}
-static void memimport_release_cb(pa_memimport *i, uint32_t block_id, void *userdata) {
+void pa_pstream_send_release(pa_pstream *p, uint32_t block_id) {
struct item_info *item;
- pa_pstream *p = userdata;
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
-
- pa_mutex_lock(p->mutex);
-
if (p->dead)
- goto finish;
+ return;
/* pa_log("Releasing block %u", block_id); */
- item = pa_xnew(struct item_info, 1);
+ if (!(item = pa_flist_pop(PA_STATIC_FLIST_GET(items))))
+ item = pa_xnew(struct item_info, 1);
item->type = PA_PSTREAM_ITEM_SHMRELEASE;
item->block_id = block_id;
#ifdef HAVE_CREDS
- item->with_creds = 0;
+ item->with_creds = FALSE;
#endif
pa_queue_push(p->send_queue, item);
p->mainloop->defer_enable(p->defer_event, 1);
-
-finish:
-
- pa_mutex_unlock(p->mutex);
}
-static void memexport_revoke_cb(pa_memexport *e, uint32_t block_id, void *userdata) {
- struct item_info *item;
+/* might be called from thread context */
+static void memimport_release_cb(pa_memimport *i, uint32_t block_id, void *userdata) {
pa_pstream *p = userdata;
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
- pa_mutex_lock(p->mutex);
-
if (p->dead)
- goto finish;
+ return;
+
+ if (p->release_callback)
+ p->release_callback(p, block_id, p->release_callback_userdata);
+ else
+ pa_pstream_send_release(p, block_id);
+}
+void pa_pstream_send_revoke(pa_pstream *p, uint32_t block_id) {
+ struct item_info *item;
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+
+ if (p->dead)
+ return;
/* pa_log("Revoking block %u", block_id); */
-
- item = pa_xnew(struct item_info, 1);
+
+ if (!(item = pa_flist_pop(PA_STATIC_FLIST_GET(items))))
+ item = pa_xnew(struct item_info, 1);
item->type = PA_PSTREAM_ITEM_SHMREVOKE;
item->block_id = block_id;
#ifdef HAVE_CREDS
- item->with_creds = 0;
+ item->with_creds = FALSE;
#endif
pa_queue_push(p->send_queue, item);
p->mainloop->defer_enable(p->defer_event, 1);
+}
+
+/* might be called from thread context */
+static void memexport_revoke_cb(pa_memexport *e, uint32_t block_id, void *userdata) {
+ pa_pstream *p = userdata;
-finish:
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
- pa_mutex_unlock(p->mutex);
+ if (p->revoke_callback)
+ p->revoke_callback(p, block_id, p->revoke_callback_userdata);
+ else
+ pa_pstream_send_revoke(p, block_id);
}
static void prepare_next_write_item(pa_pstream *p) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+
+ p->write.current = pa_queue_pop(p->send_queue);
- if (!(p->write.current = pa_queue_pop(p->send_queue)))
+ if (!p->write.current)
return;
-
+
p->write.index = 0;
p->write.data = NULL;
+ pa_memchunk_reset(&p->write.memchunk);
p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH] = 0;
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_FLAGS] = 0;
-
+
if (p->write.current->type == PA_PSTREAM_ITEM_PACKET) {
-
- assert(p->write.current->packet);
+
+ pa_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_LENGTH] = htonl((uint32_t) p->write.current->packet->length);
} else if (p->write.current->type == PA_PSTREAM_ITEM_SHMRELEASE) {
p->write.descriptor[PA_PSTREAM_DESCRIPTOR_FLAGS] = htonl(PA_FLAG_SHMREVOKE);
p->write.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI] = htonl(p->write.current->block_id);
-
+
} else {
uint32_t flags;
- int send_payload = 1;
-
- assert(p->write.current->type == PA_PSTREAM_ITEM_MEMBLOCK);
- assert(p->write.current->chunk.memblock);
-
+ pa_bool_t send_payload = TRUE;
+
+ pa_assert(p->write.current->type == PA_PSTREAM_ITEM_MEMBLOCK);
+ pa_assert(p->write.current->chunk.memblock);
+
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));
- flags = p->write.current->seek_mode & PA_FLAG_SEEKMASK;
+ flags = (uint32_t) (p->write.current->seek_mode & PA_FLAG_SEEKMASK);
if (p->use_shm) {
uint32_t block_id, shm_id;
size_t offset, length;
- assert(p->export);
+ pa_assert(p->export);
if (pa_memexport_put(p->export,
p->write.current->chunk.memblock,
&shm_id,
&offset,
&length) >= 0) {
-
+
flags |= PA_FLAG_SHMDATA;
- send_payload = 0;
-
+ send_payload = FALSE;
+
p->write.shm_info[PA_PSTREAM_SHM_BLOCKID] = htonl(block_id);
p->write.shm_info[PA_PSTREAM_SHM_SHMID] = htonl(shm_id);
p->write.shm_info[PA_PSTREAM_SHM_INDEX] = htonl((uint32_t) (offset + p->write.current->chunk.index));
p->write.shm_info[PA_PSTREAM_SHM_LENGTH] = htonl((uint32_t) p->write.current->chunk.length);
-
+
p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH] = htonl(sizeof(p->write.shm_info));
p->write.data = p->write.shm_info;
}
}
if (send_payload) {
- p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH] = htonl(p->write.current->chunk.length);
- p->write.data = (uint8_t*) p->write.current->chunk.memblock->data + p->write.current->chunk.index;
+ p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH] = htonl((uint32_t) p->write.current->chunk.length);
+ p->write.memchunk = p->write.current->chunk;
+ pa_memblock_ref(p->write.memchunk.memblock);
+ p->write.data = NULL;
}
-
+
p->write.descriptor[PA_PSTREAM_DESCRIPTOR_FLAGS] = htonl(flags);
}
void *d;
size_t l;
ssize_t r;
-
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ pa_memblock *release_memblock = NULL;
+
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
if (!p->write.current)
prepare_next_write_item(p);
d = (uint8_t*) p->write.descriptor + p->write.index;
l = PA_PSTREAM_DESCRIPTOR_SIZE - p->write.index;
} else {
- assert(p->write.data);
-
- d = (uint8_t*) p->write.data + p->write.index - PA_PSTREAM_DESCRIPTOR_SIZE;
+ pa_assert(p->write.data || p->write.memchunk.memblock);
+
+ if (p->write.data)
+ d = p->write.data;
+ else {
+ d = (uint8_t*) pa_memblock_acquire(p->write.memchunk.memblock) + p->write.memchunk.index;
+ release_memblock = p->write.memchunk.memblock;
+ }
+
+ d = (uint8_t*) d + p->write.index - PA_PSTREAM_DESCRIPTOR_SIZE;
l = ntohl(p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) - (p->write.index - PA_PSTREAM_DESCRIPTOR_SIZE);
}
- assert(l > 0);
-
+ pa_assert(l > 0);
+
#ifdef HAVE_CREDS
if (p->send_creds_now) {
if ((r = pa_iochannel_write_with_creds(p->io, d, l, &p->write_creds)) < 0)
- return -1;
+ goto fail;
- p->send_creds_now = 0;
+ p->send_creds_now = FALSE;
} else
#endif
if ((r = pa_iochannel_write(p->io, d, l)) < 0)
- return -1;
+ goto fail;
+
+ if (release_memblock)
+ pa_memblock_release(release_memblock);
- p->write.index += r;
+ p->write.index += (size_t) 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);
+ pa_assert(p->write.current);
+ item_free(p->write.current, NULL);
p->write.current = NULL;
+ if (p->write.memchunk.memblock)
+ pa_memblock_unref(p->write.memchunk.memblock);
+
+ pa_memchunk_reset(&p->write.memchunk);
+
if (p->drain_callback && !pa_pstream_is_pending(p))
p->drain_callback(p, p->drain_callback_userdata);
}
return 0;
+
+fail:
+
+ if (release_memblock)
+ pa_memblock_release(release_memblock);
+
+ return -1;
}
static int do_read(pa_pstream *p) {
void *d;
- size_t l;
+ size_t l;
ssize_t r;
-
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
-
+ pa_memblock *release_memblock = NULL;
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+
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;
+ pa_assert(p->read.data || p->read.memblock);
+
+ if (p->read.data)
+ d = p->read.data;
+ else {
+ d = pa_memblock_acquire(p->read.memblock);
+ release_memblock = p->read.memblock;
+ }
+
+ d = (uint8_t*) d + p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE;
l = ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) - (p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE);
}
#ifdef HAVE_CREDS
{
- int b = 0;
-
+ pa_bool_t b = 0;
+
if ((r = pa_iochannel_read_with_creds(p->io, d, l, &p->read_creds, &b)) <= 0)
- return -1;
+ goto fail;
p->read_creds_valid = p->read_creds_valid || b;
}
#else
if ((r = pa_iochannel_read(p->io, d, l)) <= 0)
- return -1;
+ goto fail;
#endif
-
- p->read.index += r;
+
+ if (release_memblock)
+ pa_memblock_release(release_memblock);
+
+ p->read.index += (size_t) r;
if (p->read.index == PA_PSTREAM_DESCRIPTOR_SIZE) {
uint32_t flags, length, channel;
flags = ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_FLAGS]);
- if (!p->import && (flags & PA_FLAG_SHMMASK) != 0) {
- pa_log_warn("Recieved SHM frame on a socket where SHM is disabled.");
+ if (!p->use_shm && (flags & PA_FLAG_SHMMASK) != 0) {
+ pa_log_warn("Received SHM frame on a socket where SHM is disabled.");
return -1;
}
-
+
if (flags == PA_FLAG_SHMRELEASE) {
/* This is a SHM memblock release frame with no payload */
/* pa_log("Got release frame for %u", ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI])); */
-
- assert(p->export);
+
+ pa_assert(p->export);
pa_memexport_process_release(p->export, ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI]));
goto frame_done;
-
+
} else if (flags == PA_FLAG_SHMREVOKE) {
/* This is a SHM memblock revoke frame with no payload */
/* pa_log("Got revoke frame for %u", ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI])); */
- assert(p->import);
+ pa_assert(p->import);
pa_memimport_process_revoke(p->import, ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI]));
goto frame_done;
}
length = ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]);
-
- if (length > FRAME_SIZE_MAX_ALLOW) {
- pa_log_warn("Recieved invalid frame size : %lu", (unsigned long) length);
+
+ if (length > FRAME_SIZE_MAX_ALLOW || length <= 0) {
+ pa_log_warn("Received invalid frame size: %lu", (unsigned long) length);
return -1;
}
-
- assert(!p->read.packet && !p->read.memblock);
+
+ pa_assert(!p->read.packet && !p->read.memblock);
channel = ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL]);
-
+
if (channel == (uint32_t) -1) {
if (flags != 0) {
pa_log_warn("Received packet frame with invalid flags value.");
return -1;
}
-
+
/* Frame is a packet frame */
p->read.packet = pa_packet_new(length);
p->read.data = p->read.packet->data;
-
+
} else {
if ((flags & PA_FLAG_SEEKMASK) > PA_SEEK_RELATIVE_END) {
pa_log_warn("Received memblock frame with invalid seek mode.");
return -1;
}
-
+
if ((flags & PA_FLAG_SHMMASK) == PA_FLAG_SHMDATA) {
if (length != sizeof(p->read.shm_info)) {
- pa_log_warn("Recieved SHM memblock frame with Invalid frame length.");
+ pa_log_warn("Received SHM memblock frame with Invalid frame length.");
return -1;
}
-
+
/* Frame is a memblock frame referencing an SHM memblock */
p->read.data = p->read.shm_info;
} else if ((flags & PA_FLAG_SHMMASK) == 0) {
/* Frame is a memblock frame */
-
+
p->read.memblock = pa_memblock_new(p->mempool, length);
- p->read.data = p->read.memblock->data;
+ p->read.data = NULL;
} else {
-
- pa_log_warn("Recieved memblock frame with invalid flags value.");
+
+ pa_log_warn("Received memblock frame with invalid flags value.");
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;
-
+ l = (p->read.index - (size_t) r) < PA_PSTREAM_DESCRIPTOR_SIZE ? (size_t) (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;
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]),
/* Frame complete */
if (p->read.index >= ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) + PA_PSTREAM_DESCRIPTOR_SIZE) {
-
+
if (p->read.memblock) {
/* This was a memblock frame. We can unref the memblock now */
pa_memblock_unref(p->read.memblock);
} else if (p->read.packet) {
-
+
if (p->recieve_packet_callback)
#ifdef HAVE_CREDS
p->recieve_packet_callback(p, p->read.packet, p->read_creds_valid ? &p->read_creds : NULL, p->recieve_packet_callback_userdata);
pa_packet_unref(p->read.packet);
} else {
pa_memblock *b;
-
- assert((ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_FLAGS]) & PA_FLAG_SHMMASK) == PA_FLAG_SHMDATA);
- assert(p->import);
+ pa_assert((ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_FLAGS]) & PA_FLAG_SHMMASK) == PA_FLAG_SHMDATA);
+
+ pa_assert(p->import);
if (!(b = pa_memimport_get(p->import,
ntohl(p->read.shm_info[PA_PSTREAM_SHM_BLOCKID]),
ntohl(p->read.shm_info[PA_PSTREAM_SHM_INDEX]),
ntohl(p->read.shm_info[PA_PSTREAM_SHM_LENGTH])))) {
- pa_log_warn("Failed to import memory block.");
- return -1;
+ if (pa_log_ratelimit())
+ pa_log_debug("Failed to import memory block.");
}
if (p->recieve_memblock_callback) {
int64_t offset;
pa_memchunk chunk;
-
+
chunk.memblock = b;
chunk.index = 0;
- chunk.length = b->length;
+ chunk.length = b ? pa_memblock_get_length(b) : ntohl(p->read.shm_info[PA_PSTREAM_SHM_LENGTH]);
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]),
p->recieve_memblock_callback_userdata);
}
- pa_memblock_unref(b);
+ if (b)
+ pa_memblock_unref(b);
}
goto frame_done;
p->read.memblock = NULL;
p->read.packet = NULL;
p->read.index = 0;
+ p->read.data = NULL;
#ifdef HAVE_CREDS
- p->read_creds_valid = 0;
+ p->read_creds_valid = FALSE;
#endif
return 0;
+
+fail:
+ if (release_memblock)
+ pa_memblock_release(release_memblock);
+
+ return -1;
}
void pa_pstream_set_die_callback(pa_pstream *p, pa_pstream_notify_cb_t cb, void *userdata) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
-
- pa_mutex_lock(p->mutex);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+
p->die_callback = cb;
p->die_callback_userdata = userdata;
- pa_mutex_unlock(p->mutex);
}
void pa_pstream_set_drain_callback(pa_pstream *p, pa_pstream_notify_cb_t cb, void *userdata) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
- pa_mutex_lock(p->mutex);
p->drain_callback = cb;
p->drain_callback_userdata = userdata;
- pa_mutex_unlock(p->mutex);
}
void pa_pstream_set_recieve_packet_callback(pa_pstream *p, pa_pstream_packet_cb_t cb, void *userdata) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
- pa_mutex_lock(p->mutex);
p->recieve_packet_callback = cb;
p->recieve_packet_callback_userdata = userdata;
- pa_mutex_unlock(p->mutex);
}
void pa_pstream_set_recieve_memblock_callback(pa_pstream *p, pa_pstream_memblock_cb_t cb, void *userdata) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
- pa_mutex_lock(p->mutex);
p->recieve_memblock_callback = cb;
p->recieve_memblock_callback_userdata = userdata;
- pa_mutex_unlock(p->mutex);
}
-int pa_pstream_is_pending(pa_pstream *p) {
- int b;
+void pa_pstream_set_release_callback(pa_pstream *p, pa_pstream_block_id_cb_t cb, void *userdata) {
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ p->release_callback = cb;
+ p->release_callback_userdata = userdata;
+}
- pa_mutex_lock(p->mutex);
+void pa_pstream_set_revoke_callback(pa_pstream *p, pa_pstream_block_id_cb_t cb, void *userdata) {
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+
+ p->release_callback = cb;
+ p->release_callback_userdata = userdata;
+}
+
+pa_bool_t pa_pstream_is_pending(pa_pstream *p) {
+ pa_bool_t b;
+
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
if (p->dead)
- b = 0;
+ b = FALSE;
else
- b = p->write.current || !pa_queue_is_empty(p->send_queue);
-
- pa_mutex_unlock(p->mutex);
+ b = p->write.current || !pa_queue_isempty(p->send_queue);
return b;
}
void pa_pstream_unref(pa_pstream*p) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
if (PA_REFCNT_DEC(p) <= 0)
pstream_free(p);
}
pa_pstream* pa_pstream_ref(pa_pstream*p) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
-
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
+
PA_REFCNT_INC(p);
return p;
}
-void pa_pstream_close(pa_pstream *p) {
- assert(p);
+void pa_pstream_unlink(pa_pstream *p) {
+ pa_assert(p);
- pa_mutex_lock(p->mutex);
-
- p->dead = 1;
+ if (p->dead)
+ return;
+
+ p->dead = TRUE;
if (p->import) {
pa_memimport_free(p->import);
p->drain_callback = NULL;
p->recieve_packet_callback = NULL;
p->recieve_memblock_callback = NULL;
-
- pa_mutex_unlock(p->mutex);
}
-void pa_pstream_use_shm(pa_pstream *p, int enable) {
- assert(p);
- assert(PA_REFCNT_VALUE(p) > 0);
-
- pa_mutex_lock(p->mutex);
+void pa_pstream_enable_shm(pa_pstream *p, pa_bool_t enable) {
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
p->use_shm = enable;
if (enable) {
-
+
if (!p->export)
p->export = pa_memexport_new(p->mempool, memexport_revoke_cb, p);
p->export = NULL;
}
}
+}
+
+pa_bool_t pa_pstream_get_shm(pa_pstream *p) {
+ pa_assert(p);
+ pa_assert(PA_REFCNT_VALUE(p) > 0);
- pa_mutex_unlock(p->mutex);
+ return p->use_shm;
}