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Diffstat (limited to 'polyp/protocol-esound.c')
| -rw-r--r-- | polyp/protocol-esound.c | 1166 |
1 files changed, 0 insertions, 1166 deletions
diff --git a/polyp/protocol-esound.c b/polyp/protocol-esound.c deleted file mode 100644 index 6f004e16..00000000 --- a/polyp/protocol-esound.c +++ /dev/null @@ -1,1166 +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 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 - 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 <errno.h> -#include <string.h> -#include <stdio.h> -#include <assert.h> -#include <stdlib.h> -#include <limits.h> - -#include "protocol-esound.h" -#include "esound.h" -#include "memblock.h" -#include "client.h" -#include "sink-input.h" -#include "sink.h" -#include "source-output.h" -#include "source.h" -#include "sample.h" -#include "scache.h" -#include "sample-util.h" -#include "authkey.h" -#include "namereg.h" -#include "xmalloc.h" -#include "log.h" -#include "util.h" -#include "endianmacros.h" - -/* Don't accept more connection than this */ -#define MAX_CONNECTIONS 10 - -/* Kick a client if it doesn't authenticate within this time */ -#define AUTH_TIMEOUT 5 - -#define DEFAULT_COOKIE_FILE ".esd_auth" - -#define PLAYBACK_BUFFER_SECONDS (.5) -#define PLAYBACK_BUFFER_FRAGMENTS (10) -#define RECORD_BUFFER_SECONDS (5) -#define RECORD_BUFFER_FRAGMENTS (100) - -#define MAX_CACHE_SAMPLE_SIZE (1024000) - -#define SCACHE_PREFIX "esound." - -/* This is heavily based on esound's code */ - -struct connection { - uint32_t index; - int dead; - pa_protocol_esound *protocol; - pa_iochannel *io; - pa_client *client; - int authorized, swap_byte_order; - void *write_data; - size_t write_data_alloc, write_data_index, write_data_length; - void *read_data; - size_t read_data_alloc, read_data_length; - esd_proto_t request; - esd_client_state_t state; - pa_sink_input *sink_input; - pa_source_output *source_output; - pa_memblockq *input_memblockq, *output_memblockq; - pa_defer_event *defer_event; - - struct { - pa_memblock *current_memblock; - size_t memblock_index, fragment_size; - } playback; - - struct { - pa_memchunk memchunk; - char *name; - pa_sample_spec sample_spec; - } scache; - - pa_time_event *auth_timeout_event; -}; - -struct pa_protocol_esound { - int public; - pa_module *module; - pa_core *core; - pa_socket_server *server; - pa_idxset *connections; - char *sink_name, *source_name; - unsigned n_player; - uint8_t esd_key[ESD_KEY_LEN]; -}; - -typedef struct proto_handler { - size_t data_length; - int (*proc)(struct connection *c, esd_proto_t request, const void *data, size_t length); - const char *description; -} esd_proto_handler_info_t; - -static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length); -static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk); -static void sink_input_kill_cb(pa_sink_input *i); -static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i); -static pa_usec_t source_output_get_latency_cb(pa_source_output *o); - -static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk); -static void source_output_kill_cb(pa_source_output *o); - -static int esd_proto_connect(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_stream_play(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_stream_record(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_get_latency(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_server_info(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_all_info(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_stream_pan(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_sample_cache(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_sample_free_or_play(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_sample_get_id(struct connection *c, esd_proto_t request, const void *data, size_t length); -static int esd_proto_standby_or_resume(struct connection *c, esd_proto_t request, const void *data, size_t length); - -/* the big map of protocol handler info */ -static struct proto_handler proto_map[ESD_PROTO_MAX] = { - { ESD_KEY_LEN + sizeof(int), esd_proto_connect, "connect" }, - { ESD_KEY_LEN + sizeof(int), NULL, "lock" }, - { ESD_KEY_LEN + sizeof(int), NULL, "unlock" }, - - { ESD_NAME_MAX + 2 * sizeof(int), esd_proto_stream_play, "stream play" }, - { ESD_NAME_MAX + 2 * sizeof(int), esd_proto_stream_record, "stream rec" }, - { ESD_NAME_MAX + 2 * sizeof(int), esd_proto_stream_record, "stream mon" }, - - { ESD_NAME_MAX + 3 * sizeof(int), esd_proto_sample_cache, "sample cache" }, /* 6 */ - { sizeof(int), esd_proto_sample_free_or_play, "sample free" }, - { sizeof(int), esd_proto_sample_free_or_play, "sample play" }, /* 8 */ - { sizeof(int), NULL, "sample loop" }, - { sizeof(int), NULL, "sample stop" }, - { -1, NULL, "TODO: sample kill" }, - - { ESD_KEY_LEN + sizeof(int), esd_proto_standby_or_resume, "standby" }, /* NOOP! */ - { ESD_KEY_LEN + sizeof(int), esd_proto_standby_or_resume, "resume" }, /* NOOP! */ /* 13 */ - - { ESD_NAME_MAX, esd_proto_sample_get_id, "sample getid" }, /* 14 */ - { ESD_NAME_MAX + 2 * sizeof(int), NULL, "stream filter" }, - - { sizeof(int), esd_proto_server_info, "server info" }, - { sizeof(int), esd_proto_all_info, "all info" }, - { -1, NULL, "TODO: subscribe" }, - { -1, NULL, "TODO: unsubscribe" }, - - { 3 * sizeof(int), esd_proto_stream_pan, "stream pan"}, - { 3 * sizeof(int), NULL, "sample pan" }, - - { sizeof(int), NULL, "standby mode" }, - { 0, esd_proto_get_latency, "get latency" } -}; - - -static void connection_free(struct connection *c) { - assert(c); - pa_idxset_remove_by_data(c->protocol->connections, c, NULL); - - if (c->state == ESD_STREAMING_DATA) - c->protocol->n_player--; - - pa_client_free(c->client); - - if (c->sink_input) { - pa_sink_input_disconnect(c->sink_input); - pa_sink_input_unref(c->sink_input); - } - - if (c->source_output) { - pa_source_output_disconnect(c->source_output); - pa_source_output_unref(c->source_output); - } - - if (c->input_memblockq) - pa_memblockq_free(c->input_memblockq); - if (c->output_memblockq) - pa_memblockq_free(c->output_memblockq); - - if (c->playback.current_memblock) - pa_memblock_unref(c->playback.current_memblock); - - pa_xfree(c->read_data); - pa_xfree(c->write_data); - - if (c->io) - pa_iochannel_free(c->io); - - if (c->defer_event) - c->protocol->core->mainloop->defer_free(c->defer_event); - - if (c->scache.memchunk.memblock) - pa_memblock_unref(c->scache.memchunk.memblock); - pa_xfree(c->scache.name); - - if (c->auth_timeout_event) - c->protocol->core->mainloop->time_free(c->auth_timeout_event); - - pa_xfree(c); -} - -static void* connection_write(struct connection *c, size_t length) { - size_t t, i; - assert(c); - - assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); - c->protocol->core->mainloop->defer_enable(c->defer_event, 1); - - t = c->write_data_length+length; - - if (c->write_data_alloc < t) - c->write_data = pa_xrealloc(c->write_data, c->write_data_alloc = t); - - assert(c->write_data); - - i = c->write_data_length; - c->write_data_length += length; - - return (uint8_t*) c->write_data+i; -} - -static void format_esd2native(int format, int swap_bytes, pa_sample_spec *ss) { - assert(ss); - - ss->channels = ((format & ESD_MASK_CHAN) == ESD_STEREO) ? 2 : 1; - if ((format & ESD_MASK_BITS) == ESD_BITS16) - ss->format = swap_bytes ? PA_SAMPLE_S16RE : PA_SAMPLE_S16NE; - else - ss->format = PA_SAMPLE_U8; -} - -static int format_native2esd(pa_sample_spec *ss) { - int format = 0; - - format = (ss->format == PA_SAMPLE_U8) ? ESD_BITS8 : ESD_BITS16; - format |= (ss->channels >= 2) ? ESD_STEREO : ESD_MONO; - - return format; -} - -/*** esound commands ***/ - -static int esd_proto_connect(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { - uint32_t ekey; - int *ok; - assert(length == (ESD_KEY_LEN + sizeof(uint32_t))); - - if (!c->authorized) { - if (memcmp(data, c->protocol->esd_key, ESD_KEY_LEN) != 0) { - pa_log(__FILE__": kicked client with invalid authorization key.\n"); - return -1; - } - - c->authorized = 1; - if (c->auth_timeout_event) { - c->protocol->core->mainloop->time_free(c->auth_timeout_event); - c->auth_timeout_event = NULL; - } - } - - ekey = *(const uint32_t*)((const uint8_t*) data+ESD_KEY_LEN); - if (ekey == ESD_ENDIAN_KEY) - c->swap_byte_order = 0; - else if (ekey == ESD_SWAP_ENDIAN_KEY) - c->swap_byte_order = 1; - else { - pa_log(__FILE__": client sent invalid endian key\n"); - return -1; - } - - ok = connection_write(c, sizeof(int)); - assert(ok); - *ok = 1; - return 0; -} - -static int esd_proto_stream_play(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { - char name[ESD_NAME_MAX]; - int format, rate; - pa_sink *sink; - pa_sample_spec ss; - size_t l; - assert(c && length == (sizeof(int)*2+ESD_NAME_MAX)); - - format = MAYBE_INT32_SWAP(c->swap_byte_order, *(const int*)data); - rate = MAYBE_INT32_SWAP(c->swap_byte_order, *((const int*)data + 1)); - - ss.rate = rate; - format_esd2native(format, c->swap_byte_order, &ss); - - if (!pa_sample_spec_valid(&ss)) { - pa_log(__FILE__": invalid sample specification\n"); - return -1; - } - - if (!(sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) { - pa_log(__FILE__": no such sink\n"); - return -1; - } - - strncpy(name, (const char*) data + sizeof(int)*2, sizeof(name)); - name[sizeof(name)-1] = 0; - - pa_client_set_name(c->client, name); - - assert(!c->sink_input && !c->input_memblockq); - - if (!(c->sink_input = pa_sink_input_new(sink, __FILE__, name, &ss, NULL, 0, -1))) { - pa_log(__FILE__": failed to create sink input.\n"); - return -1; - } - - l = (size_t) (pa_bytes_per_second(&ss)*PLAYBACK_BUFFER_SECONDS); - c->input_memblockq = pa_memblockq_new(l, 0, pa_frame_size(&ss), l/2, l/PLAYBACK_BUFFER_FRAGMENTS, c->protocol->core->memblock_stat); - pa_iochannel_socket_set_rcvbuf(c->io, l/PLAYBACK_BUFFER_FRAGMENTS*2); - c->playback.fragment_size = l/10; - - c->sink_input->owner = c->protocol->module; - c->sink_input->client = c->client; - c->sink_input->peek = sink_input_peek_cb; - c->sink_input->drop = sink_input_drop_cb; - c->sink_input->kill = sink_input_kill_cb; - c->sink_input->get_latency = sink_input_get_latency_cb; - c->sink_input->userdata = c; - - c->state = ESD_STREAMING_DATA; - - c->protocol->n_player++; - - return 0; -} - -static int esd_proto_stream_record(struct connection *c, esd_proto_t request, const void *data, size_t length) { - char name[ESD_NAME_MAX]; - int format, rate; - pa_source *source; - pa_sample_spec ss; - size_t l; - assert(c && length == (sizeof(int)*2+ESD_NAME_MAX)); - - format = MAYBE_INT32_SWAP(c->swap_byte_order, *(const int*)data); - rate = MAYBE_INT32_SWAP(c->swap_byte_order, *((const int*)data + 1)); - - ss.rate = rate; - format_esd2native(format, c->swap_byte_order, &ss); - - if (!pa_sample_spec_valid(&ss)) { - pa_log(__FILE__": invalid sample specification.\n"); - return -1; - } - - if (request == ESD_PROTO_STREAM_MON) { - pa_sink* sink; - - if (!(sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) { - pa_log(__FILE__": no such sink.\n"); - return -1; - } - - if (!(source = sink->monitor_source)) { - pa_log(__FILE__": no such monitor source.\n"); - return -1; - } - } else { - assert(request == ESD_PROTO_STREAM_REC); - - if (!(source = pa_namereg_get(c->protocol->core, c->protocol->source_name, PA_NAMEREG_SOURCE, 1))) { - pa_log(__FILE__": no such source.\n"); - return -1; - } - } - - strncpy(name, (const char*) data + sizeof(int)*2, sizeof(name)); - name[sizeof(name)-1] = 0; - - pa_client_set_name(c->client, name); - - assert(!c->output_memblockq && !c->source_output); - - if (!(c->source_output = pa_source_output_new(source, __FILE__, name, &ss, NULL, -1))) { - pa_log(__FILE__": failed to create source output\n"); - return -1; - } - - l = (size_t) (pa_bytes_per_second(&ss)*RECORD_BUFFER_SECONDS); - c->output_memblockq = pa_memblockq_new(l, 0, pa_frame_size(&ss), 0, 0, c->protocol->core->memblock_stat); - pa_iochannel_socket_set_sndbuf(c->io, l/RECORD_BUFFER_FRAGMENTS*2); - - c->source_output->owner = c->protocol->module; - c->source_output->client = c->client; - c->source_output->push = source_output_push_cb; - c->source_output->kill = source_output_kill_cb; - c->source_output->get_latency = source_output_get_latency_cb; - c->source_output->userdata = c; - - c->state = ESD_STREAMING_DATA; - - c->protocol->n_player++; - - return 0; -} - -static int esd_proto_get_latency(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { - pa_sink *sink; - int latency, *lag; - assert(c && !data && length == 0); - - if (!(sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) - latency = 0; - else { - double usec = pa_sink_get_latency(sink); - latency = (int) ((usec*44100)/1000000); - } - - lag = connection_write(c, sizeof(int)); - assert(lag); - *lag = MAYBE_INT32_SWAP(c->swap_byte_order, latency); - return 0; -} - -static int esd_proto_server_info(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { - int rate = 44100, format = ESD_STEREO|ESD_BITS16; - int *response; - pa_sink *sink; - assert(c && data && length == sizeof(int)); - - if ((sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) { - rate = sink->sample_spec.rate; - format = format_native2esd(&sink->sample_spec); - } - - response = connection_write(c, sizeof(int)*3); - assert(response); - *(response++) = 0; - *(response++) = MAYBE_INT32_SWAP(c->swap_byte_order, rate); - *(response++) = MAYBE_INT32_SWAP(c->swap_byte_order, format); - return 0; -} - -static int esd_proto_all_info(struct connection *c, esd_proto_t request, const void *data, size_t length) { - uint8_t *response; - size_t t, k, s; - struct connection *conn; - size_t idx = PA_IDXSET_INVALID; - unsigned nsamples; - assert(c && data && length == sizeof(int)); - - if (esd_proto_server_info(c, request, data, length) < 0) - return -1; - - k = sizeof(int)*5+ESD_NAME_MAX; - s = sizeof(int)*6+ESD_NAME_MAX; - nsamples = c->protocol->core->scache ? pa_idxset_size(c->protocol->core->scache) : 0; - response = connection_write(c, (t = s*(nsamples+1) + k*(c->protocol->n_player+1))); - assert(k); - - for (conn = pa_idxset_first(c->protocol->connections, &idx); conn; conn = pa_idxset_next(c->protocol->connections, &idx)) { - int format = ESD_BITS16 | ESD_STEREO, rate = 44100, lvolume = ESD_VOLUME_BASE, rvolume = ESD_VOLUME_BASE; - - if (conn->state != ESD_STREAMING_DATA) - continue; - - assert(t >= s+k+k); - - if (conn->sink_input) { - rate = conn->sink_input->sample_spec.rate; - lvolume = (conn->sink_input->volume.values[0]*ESD_VOLUME_BASE)/PA_VOLUME_NORM; - rvolume = (conn->sink_input->volume.values[1]*ESD_VOLUME_BASE)/PA_VOLUME_NORM; - format = format_native2esd(&conn->sink_input->sample_spec); - } - - /* id */ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, (int) (conn->index+1)); - response += sizeof(int); - - /* name */ - assert(conn->client); - strncpy((char*) response, conn->client->name, ESD_NAME_MAX); - response += ESD_NAME_MAX; - - /* rate */ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, rate); - response += sizeof(int); - - /* left */ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, lvolume); - response += sizeof(int); - - /*right*/ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, rvolume); - response += sizeof(int); - - /*format*/ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, format); - response += sizeof(int); - - t-= k; - } - - assert(t == s*(nsamples+1)+k); - memset(response, 0, k); - response += k; - t -= k; - - if (nsamples) { - pa_scache_entry *ce; - - idx = PA_IDXSET_INVALID; - for (ce = pa_idxset_first(c->protocol->core->scache, &idx); ce; ce = pa_idxset_next(c->protocol->core->scache, &idx)) { - assert(t >= s*2); - - /* id */ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, (int) (ce->index+1)); - response += sizeof(int); - - /* name */ - if (strncmp(ce->name, SCACHE_PREFIX, sizeof(SCACHE_PREFIX)-1) == 0) - strncpy((char*) response, ce->name+sizeof(SCACHE_PREFIX)-1, ESD_NAME_MAX); - else - snprintf((char*) response, ESD_NAME_MAX, "native.%s", ce->name); - response += ESD_NAME_MAX; - - /* rate */ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, ce->sample_spec.rate); - response += sizeof(int); - - /* left */ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, (ce->volume.values[0]*ESD_VOLUME_BASE)/PA_VOLUME_NORM); - response += sizeof(int); - - /*right*/ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, (ce->volume.values[0]*ESD_VOLUME_BASE)/PA_VOLUME_NORM); - response += sizeof(int); - - /*format*/ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, format_native2esd(&ce->sample_spec)); - response += sizeof(int); - - /*length*/ - *((int*) response) = MAYBE_INT32_SWAP(c->swap_byte_order, (int) ce->memchunk.length); - response += sizeof(int); - - t -= s; - } - } - - assert(t == s); - memset(response, 0, s); - - return 0; -} - -static int esd_proto_stream_pan(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { - int *ok; - uint32_t idx; - pa_volume_t lvolume, rvolume; - struct connection *conn; - assert(c && data && length == sizeof(int)*3); - - idx = MAYBE_UINT32_SWAP(c->swap_byte_order, *(const int*)data)-1; - lvolume = MAYBE_UINT32_SWAP(c->swap_byte_order, *((const int*)data + 1)); - lvolume = (lvolume*PA_VOLUME_NORM)/ESD_VOLUME_BASE; - rvolume = MAYBE_UINT32_SWAP(c->swap_byte_order, *((const int*)data + 2)); - rvolume = (rvolume*PA_VOLUME_NORM)/ESD_VOLUME_BASE; - - ok = connection_write(c, sizeof(int)); - assert(ok); - - if ((conn = pa_idxset_get_by_index(c->protocol->connections, idx))) { - assert(conn->sink_input); - conn->sink_input->volume.values[0] = lvolume; - conn->sink_input->volume.values[1] = rvolume; - conn->sink_input->volume.channels = 2; - *ok = 1; - } else - *ok = 0; - - return 0; -} - -static int esd_proto_sample_cache(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { - pa_sample_spec ss; - int format, rate; - size_t sc_length; - uint32_t idx; - int *ok; - char name[ESD_NAME_MAX+sizeof(SCACHE_PREFIX)-1]; - assert(c && data && length == (ESD_NAME_MAX+3*sizeof(int))); - - format = MAYBE_INT32_SWAP(c->swap_byte_order, *(const int*)data); - rate = MAYBE_INT32_SWAP(c->swap_byte_order, *((const int*)data + 1)); - - ss.rate = rate; - format_esd2native(format, c->swap_byte_order, &ss); - - sc_length = (size_t) MAYBE_INT32_SWAP(c->swap_byte_order, (*((const int*)data + 2))); - - if (sc_length >= MAX_CACHE_SAMPLE_SIZE) - return -1; - - strcpy(name, SCACHE_PREFIX); - strncpy(name+sizeof(SCACHE_PREFIX)-1, (const char*) data+3*sizeof(int), ESD_NAME_MAX); - name[sizeof(name)-1] = 0; - - assert(!c->scache.memchunk.memblock); - c->scache.memchunk.memblock = pa_memblock_new(sc_length, c->protocol->core->memblock_stat); - c->scache.memchunk.index = 0; - c->scache.memchunk.length = sc_length; - c->scache.sample_spec = ss; - assert(!c->scache.name); - c->scache.name = pa_xstrdup(name); - - c->state = ESD_CACHING_SAMPLE; - - pa_scache_add_item(c->protocol->core, c->scache.name, NULL, NULL, NULL, &idx); - - ok = connection_write(c, sizeof(int)); - assert(ok); - - *ok = idx+1; - - return 0; -} - -static int esd_proto_sample_get_id(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { - int *ok; - uint32_t idx; - char name[ESD_NAME_MAX+sizeof(SCACHE_PREFIX)-1]; - assert(c && data && length == ESD_NAME_MAX); - - ok = connection_write(c, sizeof(int)); - assert(ok); - - *ok = -1; - - strcpy(name, SCACHE_PREFIX); - strncpy(name+sizeof(SCACHE_PREFIX)-1, data, ESD_NAME_MAX); - name[sizeof(name)-1] = 0; - - if ((idx = pa_scache_get_id_by_name(c->protocol->core, name)) != PA_IDXSET_INVALID) - *ok = (int) idx +1; - - return 0; -} - -static int esd_proto_sample_free_or_play(struct connection *c, esd_proto_t request, const void *data, size_t length) { - int *ok; - const char *name; - uint32_t idx; - assert(c && data && length == sizeof(int)); - - idx = (uint32_t) MAYBE_INT32_SWAP(c->swap_byte_order, *(const int*)data)-1; - - ok = connection_write(c, sizeof(int)); - assert(ok); - - *ok = 0; - - if ((name = pa_scache_get_name_by_id(c->protocol->core, idx))) { - if (request == ESD_PROTO_SAMPLE_PLAY) { - pa_sink *sink; - - if ((sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) - if (pa_scache_play_item(c->protocol->core, name, sink, NULL) >= 0) - *ok = (int) idx+1; - } else { - assert(request == ESD_PROTO_SAMPLE_FREE); - - if (pa_scache_remove_item(c->protocol->core, name) >= 0) - *ok = (int) idx+1; - } - } - - return 0; -} - -static int esd_proto_standby_or_resume(struct connection *c, PA_GCC_UNUSED esd_proto_t request, PA_GCC_UNUSED const void *data, PA_GCC_UNUSED size_t length) { - int *ok; - ok = connection_write(c, sizeof(int)*2); - assert(ok); - ok[0] = 1; - ok[1] = 1; - return 0; -} - -/*** client callbacks ***/ - -static void client_kill_cb(pa_client *c) { - assert(c && c->userdata); - connection_free(c->userdata); -} - -/*** pa_iochannel callbacks ***/ - -static int do_read(struct connection *c) { - assert(c && c->io); - -/* pa_log("READ\n"); */ - - if (c->state == ESD_NEXT_REQUEST) { - ssize_t r; - assert(c->read_data_length < sizeof(c->request)); - - if ((r = pa_iochannel_read(c->io, ((uint8_t*) &c->request) + c->read_data_length, sizeof(c->request) - c->read_data_length)) <= 0) { - if (r != 0) - pa_log_warn(__FILE__": read() failed: %s\n", strerror(errno)); - return -1; - } - - if ((c->read_data_length+= r) >= sizeof(c->request)) { - struct proto_handler *handler; - - c->request = MAYBE_INT32_SWAP(c->swap_byte_order, c->request); - - if (c->request < ESD_PROTO_CONNECT || c->request > ESD_PROTO_MAX) { - pa_log(__FILE__": recieved invalid request.\n"); - return -1; - } - - handler = proto_map+c->request; - -/* pa_log(__FILE__": executing request #%u\n", c->request); */ - - if (!handler->proc) { - pa_log(__FILE__": recieved unimplemented request #%u.\n", c->request); - return -1; - } - - if (handler->data_length == 0) { - c->read_data_length = 0; - - if (handler->proc(c, c->request, NULL, 0) < 0) - return -1; - - } else { - if (c->read_data_alloc < handler->data_length) - c->read_data = pa_xrealloc(c->read_data, c->read_data_alloc = handler->data_length); - assert(c->read_data); - - c->state = ESD_NEEDS_REQDATA; - c->read_data_length = 0; - } - } - - } else if (c->state == ESD_NEEDS_REQDATA) { - ssize_t r; - struct proto_handler *handler = proto_map+c->request; - - assert(handler->proc); - - assert(c->read_data && c->read_data_length < handler->data_length); - - if ((r = pa_iochannel_read(c->io, (uint8_t*) c->read_data + c->read_data_length, handler->data_length - c->read_data_length)) <= 0) { - if (r != 0) - pa_log_warn(__FILE__": read() failed: %s\n", strerror(errno)); - return -1; - } - - if ((c->read_data_length+= r) >= handler->data_length) { - size_t l = c->read_data_length; - assert(handler->proc); - - c->state = ESD_NEXT_REQUEST; - c->read_data_length = 0; - - if (handler->proc(c, c->request, c->read_data, l) < 0) - return -1; - } - } else if (c->state == ESD_CACHING_SAMPLE) { - ssize_t r; - - assert(c->scache.memchunk.memblock && c->scache.name && c->scache.memchunk.index < c->scache.memchunk.length); - - if ((r = pa_iochannel_read(c->io, (uint8_t*) c->scache.memchunk.memblock->data+c->scache.memchunk.index, c->scache.memchunk.length-c->scache.memchunk.index)) <= 0) { - if (r!= 0) - pa_log_warn(__FILE__": read() failed: %s\n", strerror(errno)); - return -1; - } - - c->scache.memchunk.index += r; - assert(c->scache.memchunk.index <= c->scache.memchunk.length); - - if (c->scache.memchunk.index == c->scache.memchunk.length) { - uint32_t idx; - int *ok; - - c->scache.memchunk.index = 0; - pa_scache_add_item(c->protocol->core, c->scache.name, &c->scache.sample_spec, NULL, &c->scache.memchunk, &idx); - - pa_memblock_unref(c->scache.memchunk.memblock); - c->scache.memchunk.memblock = NULL; - c->scache.memchunk.index = c->scache.memchunk.length = 0; - - pa_xfree(c->scache.name); - c->scache.name = NULL; - - c->state = ESD_NEXT_REQUEST; - - ok = connection_write(c, sizeof(int)); - assert(ok); - *ok = idx+1; - } - - } else if (c->state == ESD_STREAMING_DATA && c->sink_input) { - pa_memchunk chunk; - ssize_t r; - size_t l; - - assert(c->input_memblockq); - -/* pa_log("STREAMING_DATA\n"); */ - - if (!(l = pa_memblockq_missing(c->input_memblockq))) - return 0; - - if (l > c->playback.fragment_size) - l = c->playback.fragment_size; - - if (c->playback.current_memblock) - if (c->playback.current_memblock->length - c->playback.memblock_index < l) { - pa_memblock_unref(c->playback.current_memblock); - c->playback.current_memblock = NULL; - c->playback.memblock_index = 0; - } - - if (!c->playback.current_memblock) { - c->playback.current_memblock = pa_memblock_new(c->playback.fragment_size*2, c->protocol->core->memblock_stat); - assert(c->playback.current_memblock && c->playback.current_memblock->length >= l); - c->playback.memblock_index = 0; - } - - if ((r = pa_iochannel_read(c->io, (uint8_t*) c->playback.current_memblock->data+c->playback.memblock_index, l)) <= 0) { - if (r != 0) - pa_log(__FILE__": read() failed: %s\n", strerror(errno)); - return -1; - } - -/* pa_log(__FILE__": read %u\n", r); */ - - chunk.memblock = c->playback.current_memblock; - chunk.index = c->playback.memblock_index; - chunk.length = r; - assert(chunk.memblock); - - c->playback.memblock_index += r; - - assert(c->input_memblockq); - pa_memblockq_push_align(c->input_memblockq, &chunk, 0); - assert(c->sink_input); - pa_sink_notify(c->sink_input->sink); - } - - return 0; -} - -static int do_write(struct connection *c) { - assert(c && c->io); - -/* pa_log("WRITE\n"); */ - - if (c->write_data_length) { - ssize_t r; - - assert(c->write_data_index < c->write_data_length); - if ((r = pa_iochannel_write(c->io, (uint8_t*) c->write_data+c->write_data_index, c->write_data_length-c->write_data_index)) < 0) { - pa_log(__FILE__": write() failed: %s\n", strerror(errno)); - return -1; - } - - if ((c->write_data_index +=r) >= c->write_data_length) - c->write_data_length = c->write_data_index = 0; - - } else if (c->state == ESD_STREAMING_DATA && c->source_output) { - pa_memchunk chunk; - ssize_t r; - - assert(c->output_memblockq); - if (pa_memblockq_peek(c->output_memblockq, &chunk) < 0) - return 0; - - assert(chunk.memblock && chunk.length); - - if ((r = pa_iochannel_write(c->io, (uint8_t*) chunk.memblock->data+chunk.index, chunk.length)) < 0) { - pa_memblock_unref(chunk.memblock); - pa_log(__FILE__": write(): %s\n", strerror(errno)); - return -1; - } - - pa_memblockq_drop(c->output_memblockq, &chunk, r); - pa_memblock_unref(chunk.memblock); - } - - return 0; -} - -static void do_work(struct connection *c) { - assert(c); - - assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); - c->protocol->core->mainloop->defer_enable(c->defer_event, 0); - -/* pa_log("DOWORK %i\n", pa_iochannel_is_hungup(c->io)); */ - - if (!c->dead && pa_iochannel_is_readable(c->io)) - if (do_read(c) < 0) - goto fail; - - if (!c->dead && pa_iochannel_is_writable(c->io)) - if (do_write(c) < 0) - goto fail; - - /* In case the line was hungup, make sure to rerun this function - as soon as possible, until all data has been read. */ - - if (!c->dead && pa_iochannel_is_hungup(c->io)) - c->protocol->core->mainloop->defer_enable(c->defer_event, 1); - - return; - -fail: - - if (c->state == ESD_STREAMING_DATA && c->sink_input) { - c->dead = 1; - pa_memblockq_prebuf_disable(c->input_memblockq); - - pa_iochannel_free(c->io); - c->io = NULL; - - } else - connection_free(c); -} - -static void io_callback(pa_iochannel*io, void *userdata) { - struct connection *c = userdata; - assert(io && c && c->io == io); - -/* pa_log("IO\n"); */ - - do_work(c); -} - -/*** defer callback ***/ - -static void defer_callback(pa_mainloop_api*a, pa_defer_event *e, void *userdata) { - struct connection *c = userdata; - assert(a && c && c->defer_event == e); - -/* pa_log("DEFER\n"); */ - - do_work(c); -} - -/*** sink_input callbacks ***/ - -static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) { - struct connection*c; - assert(i && i->userdata && chunk); - c = i->userdata; - - if (pa_memblockq_peek(c->input_memblockq, chunk) < 0) { - - if (c->dead) - connection_free(c); - - return -1; - } - - return 0; -} - -static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) { - struct connection*c = i->userdata; - assert(i && c && length); - -/* pa_log("DROP\n"); */ - - pa_memblockq_drop(c->input_memblockq, chunk, length); - - /* do something */ - assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); - - if (!c->dead) - c->protocol->core->mainloop->defer_enable(c->defer_event, 1); - -/* assert(pa_memblockq_get_length(c->input_memblockq) > 2048); */ -} - -static void sink_input_kill_cb(pa_sink_input *i) { - assert(i && i->userdata); - connection_free((struct connection *) i->userdata); -} - -static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) { - struct connection*c = i->userdata; - assert(i && c); - return pa_bytes_to_usec(pa_memblockq_get_length(c->input_memblockq), &c->sink_input->sample_spec); -} - -/*** source_output callbacks ***/ - -static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) { - struct connection *c = o->userdata; - assert(o && c && chunk); - - pa_memblockq_push(c->output_memblockq, chunk, 0); - - /* do something */ - assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); - - if (!c->dead) - c->protocol->core->mainloop->defer_enable(c->defer_event, 1); -} - -static void source_output_kill_cb(pa_source_output *o) { - assert(o && o->userdata); - connection_free((struct connection *) o->userdata); -} - -static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { - struct connection*c = o->userdata; - assert(o && c); - return pa_bytes_to_usec(pa_memblockq_get_length(c->output_memblockq), &c->source_output->sample_spec); -} - -/*** socket server callback ***/ - -static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) { - struct connection *c = userdata; - assert(m && tv && c && c->auth_timeout_event == e); - - if (!c->authorized) - connection_free(c); -} - -static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata) { - struct connection *c; - pa_protocol_esound *p = userdata; - char cname[256]; - assert(s && io && p); - - if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { - pa_log(__FILE__": Warning! Too many connections (%u), dropping incoming connection.\n", MAX_CONNECTIONS); - pa_iochannel_free(io); - return; - } - - c = pa_xmalloc(sizeof(struct connection)); - c->protocol = p; - c->io = io; - pa_iochannel_set_callback(c->io, io_callback, c); - - pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname)); - assert(p->core); - c->client = pa_client_new(p->core, __FILE__, cname); - assert(c->client); - c->client->owner = p->module; - c->client->kill = client_kill_cb; - c->client->userdata = c; - - c->authorized = p->public; - c->swap_byte_order = 0; - c->dead = 0; - - c->read_data_length = 0; - c->read_data = pa_xmalloc(c->read_data_alloc = proto_map[ESD_PROTO_CONNECT].data_length); - - c->write_data_length = c->write_data_index = c->write_data_alloc = 0; - c->write_data = NULL; - - c->state = ESD_NEEDS_REQDATA; - c->request = ESD_PROTO_CONNECT; - - c->sink_input = NULL; - c->input_memblockq = NULL; - - c->source_output = NULL; - c->output_memblockq = NULL; - - c->playback.current_memblock = NULL; - c->playback.memblock_index = 0; - c->playback.fragment_size = 0; - - c->scache.memchunk.length = c->scache.memchunk.index = 0; - c->scache.memchunk.memblock = NULL; - c->scache.name = NULL; - - if (!c->authorized) { - struct timeval tv; - pa_gettimeofday(&tv); - tv.tv_sec += AUTH_TIMEOUT; - c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c); - } else - c->auth_timeout_event = NULL; - - c->defer_event = p->core->mainloop->defer_new(p->core->mainloop, defer_callback, c); - assert(c->defer_event); - p->core->mainloop->defer_enable(c->defer_event, 0); - - pa_idxset_put(p->connections, c, &c->index); -} - -/*** entry points ***/ - -pa_protocol_esound* pa_protocol_esound_new(pa_core*core, pa_socket_server *server, pa_module *m, pa_modargs *ma) { - pa_protocol_esound *p; - int public = 0; - assert(core && server && ma); - - p = pa_xmalloc(sizeof(pa_protocol_esound)); - - if (pa_modargs_get_value_boolean(ma, "public", &public) < 0) { - pa_log(__FILE__": public= expects a boolean argument.\n"); - return NULL; - } - - if (pa_authkey_load_auto(pa_modargs_get_value(ma, "cookie", DEFAULT_COOKIE_FILE), p->esd_key, sizeof(p->esd_key)) < 0) { - pa_xfree(p); - return NULL; - } - - p->module = m; - p->public = public; - p->server = server; - pa_socket_server_set_callback(p->server, on_connection, p); - p->core = core; - p->connections = pa_idxset_new(NULL, NULL); - assert(p->connections); - - p->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL)); - p->source_name = pa_xstrdup(pa_modargs_get_value(ma, "source", NULL)); - p->n_player = 0; - - return p; -} - -void pa_protocol_esound_free(pa_protocol_esound *p) { - struct connection *c; - assert(p); - - while ((c = pa_idxset_first(p->connections, NULL))) - connection_free(c); - - pa_idxset_free(p->connections, NULL, NULL); - pa_socket_server_unref(p->server); - pa_xfree(p); -} |