diff options
Diffstat (limited to 'src/pulsecore/protocol-simple.c')
| -rw-r--r-- | src/pulsecore/protocol-simple.c | 771 |
1 files changed, 524 insertions, 247 deletions
diff --git a/src/pulsecore/protocol-simple.c b/src/pulsecore/protocol-simple.c index 4d73bd24..6def27fd 100644 --- a/src/pulsecore/protocol-simple.c +++ b/src/pulsecore/protocol-simple.c @@ -1,18 +1,18 @@ -/* $Id$ */ - /*** This file is part of PulseAudio. - + + Copyright 2004-2006 Lennart Poettering + 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 of the License, + 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 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 @@ -23,14 +23,12 @@ #include <config.h> #endif -#include <assert.h> #include <stdlib.h> -#include <limits.h> #include <stdio.h> #include <errno.h> -#include <string.h> #include <pulse/xmalloc.h> +#include <pulse/timeval.h> #include <pulsecore/sink-input.h> #include <pulsecore/source-output.h> @@ -39,456 +37,735 @@ #include <pulsecore/namereg.h> #include <pulsecore/log.h> #include <pulsecore/core-error.h> +#include <pulsecore/atomic.h> +#include <pulsecore/thread-mq.h> +#include <pulsecore/core-util.h> +#include <pulsecore/shared.h> #include "protocol-simple.h" /* Don't allow more than this many concurrent connections */ #define MAX_CONNECTIONS 10 -struct connection { - pa_protocol_simple *protocol; +typedef struct connection { + pa_msgobject parent; + pa_simple_protocol *protocol; + pa_simple_options *options; pa_iochannel *io; pa_sink_input *sink_input; pa_source_output *source_output; pa_client *client; pa_memblockq *input_memblockq, *output_memblockq; - pa_defer_event *defer_event; - int dead; - + pa_bool_t dead; + struct { pa_memblock *current_memblock; - size_t memblock_index, fragment_size; + size_t memblock_index; + pa_atomic_t missing; + pa_bool_t underrun; } playback; -}; +} connection; + +PA_DEFINE_PRIVATE_CLASS(connection, pa_msgobject); +#define CONNECTION(o) (connection_cast(o)) + +struct pa_simple_protocol { + PA_REFCNT_DECLARE; -struct pa_protocol_simple { - pa_module *module; pa_core *core; - pa_socket_server*server; pa_idxset *connections; - enum { - RECORD = 1, - PLAYBACK = 2, - DUPLEX = 3 - } mode; - pa_sample_spec sample_spec; - char *source_name, *sink_name; +}; + +enum { + SINK_INPUT_MESSAGE_POST_DATA = PA_SINK_INPUT_MESSAGE_MAX, /* data from main loop to sink input */ + SINK_INPUT_MESSAGE_DISABLE_PREBUF /* disabled prebuf, get playback started. */ +}; + +enum { + CONNECTION_MESSAGE_REQUEST_DATA, /* data requested from sink input from the main loop */ + CONNECTION_MESSAGE_POST_DATA, /* data from source output to main loop */ + CONNECTION_MESSAGE_UNLINK_CONNECTION /* Please drop a aconnection now */ }; #define PLAYBACK_BUFFER_SECONDS (.5) #define PLAYBACK_BUFFER_FRAGMENTS (10) #define RECORD_BUFFER_SECONDS (5) -#define RECORD_BUFFER_FRAGMENTS (100) +#define DEFAULT_SINK_LATENCY (300*PA_USEC_PER_MSEC) +#define DEFAULT_SOURCE_LATENCY (300*PA_USEC_PER_MSEC) -static void connection_free(struct connection *c) { - assert(c); +static void connection_unlink(connection *c) { + pa_assert(c); - pa_idxset_remove_by_data(c->protocol->connections, c, NULL); + if (!c->protocol) + return; + + if (c->options) { + pa_simple_options_unref(c->options); + c->options = NULL; + } - if (c->playback.current_memblock) - pa_memblock_unref(c->playback.current_memblock); if (c->sink_input) { - pa_sink_input_disconnect(c->sink_input); + pa_sink_input_unlink(c->sink_input); pa_sink_input_unref(c->sink_input); + c->sink_input = NULL; } + if (c->source_output) { - pa_source_output_disconnect(c->source_output); + pa_source_output_unlink(c->source_output); pa_source_output_unref(c->source_output); + c->source_output = NULL; } - if (c->client) + + if (c->client) { pa_client_free(c->client); - if (c->io) + c->client = NULL; + } + + if (c->io) { pa_iochannel_free(c->io); + c->io = NULL; + } + + pa_idxset_remove_by_data(c->protocol->connections, c, NULL); + c->protocol = NULL; + connection_unref(c); +} + +static void connection_free(pa_object *o) { + connection *c = CONNECTION(o); + pa_assert(c); + + if (c->playback.current_memblock) + pa_memblock_unref(c->playback.current_memblock); + if (c->input_memblockq) pa_memblockq_free(c->input_memblockq); if (c->output_memblockq) pa_memblockq_free(c->output_memblockq); - if (c->defer_event) - c->protocol->core->mainloop->defer_free(c->defer_event); + pa_xfree(c); } -static int do_read(struct connection *c) { +static int do_read(connection *c) { pa_memchunk chunk; ssize_t r; size_t l; + void *p; + size_t space = 0; + + connection_assert_ref(c); - if (!c->sink_input || !(l = pa_memblockq_missing(c->input_memblockq))) + if (!c->sink_input || (l = (size_t) pa_atomic_load(&c->playback.missing)) <= 0) return 0; - if (l > c->playback.fragment_size) - l = c->playback.fragment_size; + if (c->playback.current_memblock) { + + space = pa_memblock_get_length(c->playback.current_memblock) - c->playback.memblock_index; - if (c->playback.current_memblock) - if (c->playback.current_memblock->length - c->playback.memblock_index < l) { + if (space <= 0) { 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); + pa_assert_se(c->playback.current_memblock = pa_memblock_new(c->protocol->core->mempool, (size_t) -1)); c->playback.memblock_index = 0; + + space = pa_memblock_get_length(c->playback.current_memblock); } - - if ((r = pa_iochannel_read(c->io, (uint8_t*) c->playback.current_memblock->data+c->playback.memblock_index, l)) <= 0) { - pa_log_debug(__FILE__": read(): %s", r == 0 ? "EOF" : pa_cstrerror(errno)); + + if (l > space) + l = space; + + p = pa_memblock_acquire(c->playback.current_memblock); + r = pa_iochannel_read(c->io, (uint8_t*) p + c->playback.memblock_index, l); + pa_memblock_release(c->playback.current_memblock); + + if (r <= 0) { + + if (r < 0 && (errno == EINTR || errno == EAGAIN)) + return 0; + + pa_log_debug("read(): %s", r == 0 ? "EOF" : pa_cstrerror(errno)); return -1; } 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); - assert(c->sink_input); - pa_sink_notify(c->sink_input->sink); - + chunk.length = (size_t) r; + + c->playback.memblock_index += (size_t) r; + + pa_asyncmsgq_post(c->sink_input->sink->asyncmsgq, PA_MSGOBJECT(c->sink_input), SINK_INPUT_MESSAGE_POST_DATA, NULL, 0, &chunk, NULL); + pa_atomic_sub(&c->playback.missing, (int) r); + return 0; } -static int do_write(struct connection *c) { +static int do_write(connection *c) { pa_memchunk chunk; ssize_t r; + void *p; + + connection_assert_ref(c); if (!c->source_output) - return 0; + return 0; - assert(c->output_memblockq); - if (pa_memblockq_peek(c->output_memblockq, &chunk) < 0) + if (pa_memblockq_peek(c->output_memblockq, &chunk) < 0) { +/* pa_log("peek failed"); */ 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", pa_cstrerror(errno)); - return -1; } - - pa_memblockq_drop(c->output_memblockq, &chunk, r); + + pa_assert(chunk.memblock); + pa_assert(chunk.length); + + p = pa_memblock_acquire(chunk.memblock); + r = pa_iochannel_write(c->io, (uint8_t*) p+chunk.index, chunk.length); + pa_memblock_release(chunk.memblock); + pa_memblock_unref(chunk.memblock); - pa_source_notify(c->source_output->source); - + if (r < 0) { + + if (errno == EINTR || errno == EAGAIN) + return 0; + + pa_log("write(): %s", pa_cstrerror(errno)); + return -1; + } + + pa_memblockq_drop(c->output_memblockq, (size_t) r); + 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); +static void do_work(connection *c) { + connection_assert_ref(c); if (c->dead) return; - - if (pa_iochannel_is_readable(c->io)) { + + if (pa_iochannel_is_readable(c->io)) if (do_read(c) < 0) goto fail; - } else if (pa_iochannel_is_hungup(c->io)) + + if (!c->sink_input && pa_iochannel_is_hungup(c->io)) goto fail; - if (pa_iochannel_is_writable(c->io)) { + if (pa_iochannel_is_writable(c->io)) if (do_write(c) < 0) goto fail; - } return; fail: if (c->sink_input) { - c->dead = 1; - + + /* If there is a sink input, we first drain what we already have read before shutting down the connection */ + c->dead = TRUE; + pa_iochannel_free(c->io); c->io = NULL; - pa_memblockq_prebuf_disable(c->input_memblockq); - pa_sink_notify(c->sink_input->sink); + pa_asyncmsgq_post(c->sink_input->sink->asyncmsgq, PA_MSGOBJECT(c->sink_input), SINK_INPUT_MESSAGE_DISABLE_PREBUF, NULL, 0, NULL, NULL); } else - connection_free(c); + connection_unlink(c); } -/*** sink_input callbacks ***/ +static int connection_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) { + connection *c = CONNECTION(o); + connection_assert_ref(c); -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); - + if (!c->protocol) return -1; + + switch (code) { + case CONNECTION_MESSAGE_REQUEST_DATA: + do_work(c); + break; + + case CONNECTION_MESSAGE_POST_DATA: +/* pa_log("got data %u", chunk->length); */ + pa_memblockq_push_align(c->output_memblockq, chunk); + do_work(c); + break; + + case CONNECTION_MESSAGE_UNLINK_CONNECTION: + connection_unlink(c); + break; } 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); +/*** sink_input callbacks ***/ + +/* Called from thread context */ +static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) { + pa_sink_input *i = PA_SINK_INPUT(o); + connection*c; + + pa_sink_input_assert_ref(i); + c = CONNECTION(i->userdata); + connection_assert_ref(c); - pa_memblockq_drop(c->input_memblockq, chunk, length); + switch (code) { + + case SINK_INPUT_MESSAGE_POST_DATA: { + pa_assert(chunk); + + /* New data from the main loop */ + pa_memblockq_push_align(c->input_memblockq, chunk); + + if (pa_memblockq_is_readable(c->input_memblockq) && c->playback.underrun) { + pa_log_debug("Requesting rewind due to end of underrun."); + pa_sink_input_request_rewind(c->sink_input, 0, FALSE, TRUE, FALSE); + } + +/* pa_log("got data, %u", pa_memblockq_get_length(c->input_memblockq)); */ + + return 0; + } - /* do something */ - 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); + case SINK_INPUT_MESSAGE_DISABLE_PREBUF: + pa_memblockq_prebuf_disable(c->input_memblockq); + return 0; + + case PA_SINK_INPUT_MESSAGE_GET_LATENCY: { + pa_usec_t *r = userdata; + + *r = pa_bytes_to_usec(pa_memblockq_get_length(c->input_memblockq), &c->sink_input->sample_spec); + + /* Fall through, the default handler will add in the extra + * latency added by the resampler */ + } + + default: + return pa_sink_input_process_msg(o, code, userdata, offset, chunk); + } } -static void sink_input_kill_cb(pa_sink_input *i) { - assert(i && i->userdata); - connection_free((struct connection *) i->userdata); +/* Called from thread context */ +static int sink_input_pop_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) { + connection *c; + + pa_sink_input_assert_ref(i); + c = CONNECTION(i->userdata); + connection_assert_ref(c); + pa_assert(chunk); + + if (pa_memblockq_peek(c->input_memblockq, chunk) < 0) { + + c->playback.underrun = TRUE; + + if (c->dead && pa_sink_input_safe_to_remove(i)) + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(c), CONNECTION_MESSAGE_UNLINK_CONNECTION, NULL, 0, NULL, NULL); + + return -1; + } else { + size_t m; + + chunk->length = PA_MIN(length, chunk->length); + + c->playback.underrun = FALSE; + + pa_memblockq_drop(c->input_memblockq, chunk->length); + m = pa_memblockq_pop_missing(c->input_memblockq); + + if (m > 0) + if (pa_atomic_add(&c->playback.missing, (int) m) <= 0) + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(c), CONNECTION_MESSAGE_REQUEST_DATA, NULL, 0, NULL, NULL); + + return 0; + } } +/* Called from thread context */ +static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) { + connection *c; + + pa_sink_input_assert_ref(i); + c = CONNECTION(i->userdata); + connection_assert_ref(c); -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); + /* If we are in an underrun, then we don't rewind */ + if (i->thread_info.underrun_for > 0) + return; + + pa_memblockq_rewind(c->input_memblockq, nbytes); +} + +/* Called from thread context */ +static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) { + connection *c; + + pa_sink_input_assert_ref(i); + c = CONNECTION(i->userdata); + connection_assert_ref(c); + + pa_memblockq_set_maxrewind(c->input_memblockq, nbytes); +} + +/* Called from main context */ +static void sink_input_kill_cb(pa_sink_input *i) { + pa_sink_input_assert_ref(i); + + connection_unlink(CONNECTION(i->userdata)); } /*** source_output callbacks ***/ +/* Called from thread context */ static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) { - struct connection *c = o->userdata; - assert(o && c && chunk); + connection *c; - pa_memblockq_push(c->output_memblockq, chunk); + pa_source_output_assert_ref(o); + c = CONNECTION(o->userdata); + pa_assert(c); + pa_assert(chunk); - /* do something */ - 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); + pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(c), CONNECTION_MESSAGE_POST_DATA, NULL, 0, chunk, NULL); } +/* Called from main context */ static void source_output_kill_cb(pa_source_output *o) { - assert(o && o->userdata); - connection_free((struct connection *) o->userdata); + pa_source_output_assert_ref(o); + + connection_unlink(CONNECTION(o->userdata)); } +/* Called from main context */ static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { - struct connection*c = o->userdata; - assert(o && c); + connection*c; + + pa_source_output_assert_ref(o); + c = CONNECTION(o->userdata); + pa_assert(c); + return pa_bytes_to_usec(pa_memblockq_get_length(c->output_memblockq), &c->source_output->sample_spec); } /*** client callbacks ***/ -static void client_kill_cb(pa_client *c) { - assert(c && c->userdata); - connection_free((struct connection *) c->userdata); +static void client_kill_cb(pa_client *client) { + connection*c; + + pa_assert(client); + c = CONNECTION(client->userdata); + pa_assert(c); + + connection_unlink(c); } /*** pa_iochannel callbacks ***/ static void io_callback(pa_iochannel*io, void *userdata) { - struct connection *c = userdata; - assert(io && c && c->io == io); - - do_work(c); -} + connection *c = CONNECTION(userdata); -/*** fixed 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); + connection_assert_ref(c); + pa_assert(io); do_work(c); } /*** socket_server callbacks ***/ -static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata) { - pa_protocol_simple *p = userdata; - struct connection *c = NULL; - char cname[256]; - assert(s && io && p); +void pa_simple_protocol_connect(pa_simple_protocol *p, pa_iochannel *io, pa_simple_options *o) { + connection *c = NULL; + char pname[128]; + pa_client_new_data client_data; + + pa_assert(p); + pa_assert(io); + pa_assert(o); if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { - pa_log(__FILE__": Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); + pa_log("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); pa_iochannel_free(io); return; } - c = pa_xmalloc(sizeof(struct connection)); + c = pa_msgobject_new(connection); + c->parent.parent.free = connection_free; + c->parent.process_msg = connection_process_msg; c->io = io; + pa_iochannel_set_callback(c->io, io_callback, c); + c->sink_input = NULL; c->source_output = NULL; - c->defer_event = NULL; c->input_memblockq = c->output_memblockq = NULL; c->protocol = p; + c->options = pa_simple_options_ref(o); c->playback.current_memblock = NULL; c->playback.memblock_index = 0; - c->playback.fragment_size = 0; - c->dead = 0; - - pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname)); - c->client = pa_client_new(p->core, __FILE__, cname); - assert(c->client); - c->client->owner = p->module; + c->dead = FALSE; + c->playback.underrun = TRUE; + pa_atomic_store(&c->playback.missing, 0); + + pa_client_new_data_init(&client_data); + client_data.module = o->module; + client_data.driver = __FILE__; + pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname)); + pa_proplist_setf(client_data.proplist, PA_PROP_APPLICATION_NAME, "Simple client (%s)", pname); + pa_proplist_sets(client_data.proplist, "simple-protocol.peer", pname); + c->client = pa_client_new(p->core, &client_data); + pa_client_new_data_done(&client_data); + + if (!c->client) + goto fail; + c->client->kill = client_kill_cb; c->client->userdata = c; - if (p->mode & PLAYBACK) { - pa_sink *sink; + if (o->playback) { + pa_sink_input_new_data data; + pa_memchunk silence; size_t l; + pa_sink *sink; - if (!(sink = pa_namereg_get(p->core, p->sink_name, PA_NAMEREG_SINK, 1))) { - pa_log(__FILE__": Failed to get sink."); + if (!(sink = pa_namereg_get(c->protocol->core, o->default_sink, PA_NAMEREG_SINK))) { + pa_log("Failed to get sink."); goto fail; } - if (!(c->sink_input = pa_sink_input_new(sink, __FILE__, c->client->name, &p->sample_spec, NULL, NULL, 0, -1))) { - pa_log(__FILE__": Failed to create sink input."); + pa_sink_input_new_data_init(&data); + data.driver = __FILE__; + data.module = o->module; + data.client = c->client; + pa_sink_input_new_data_set_sink(&data, sink, FALSE); + pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist); + pa_sink_input_new_data_set_sample_spec(&data, &o->sample_spec); + + pa_sink_input_new(&c->sink_input, p->core, &data); + pa_sink_input_new_data_done(&data); + + if (!c->sink_input) { + pa_log("Failed to create sink input."); goto fail; } - - c->sink_input->owner = p->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->parent.process_msg = sink_input_process_msg; + c->sink_input->pop = sink_input_pop_cb; + c->sink_input->process_rewind = sink_input_process_rewind_cb; + c->sink_input->update_max_rewind = sink_input_update_max_rewind_cb; c->sink_input->kill = sink_input_kill_cb; - c->sink_input->get_latency = sink_input_get_latency_cb; c->sink_input->userdata = c; - l = (size_t) (pa_bytes_per_second(&p->sample_spec)*PLAYBACK_BUFFER_SECONDS); + pa_sink_input_set_requested_latency(c->sink_input, DEFAULT_SINK_LATENCY); + + l = (size_t) ((double) pa_bytes_per_second(&o->sample_spec)*PLAYBACK_BUFFER_SECONDS); + pa_sink_input_get_silence(c->sink_input, &silence); c->input_memblockq = pa_memblockq_new( 0, l, - 0, - pa_frame_size(&p->sample_spec), + l, + pa_frame_size(&o->sample_spec), (size_t) -1, l/PLAYBACK_BUFFER_FRAGMENTS, - NULL, - p->core->memblock_stat); - assert(c->input_memblockq); - pa_iochannel_socket_set_rcvbuf(io, l/PLAYBACK_BUFFER_FRAGMENTS*5); - c->playback.fragment_size = l/10; + 0, + &silence); + pa_memblock_unref(silence.memblock); + + pa_iochannel_socket_set_rcvbuf(io, l); + + pa_atomic_store(&c->playback.missing, (int) pa_memblockq_pop_missing(c->input_memblockq)); + + pa_sink_input_put(c->sink_input); } - if (p->mode & RECORD) { - pa_source *source; + if (o->record) { + pa_source_output_new_data data; size_t l; + pa_source *source; - if (!(source = pa_namereg_get(p->core, p->source_name, PA_NAMEREG_SOURCE, 1))) { - pa_log(__FILE__": Failed to get source."); + if (!(source = pa_namereg_get(c->protocol->core, o->default_source, PA_NAMEREG_SOURCE))) { + pa_log("Failed to get source."); goto fail; } - c->source_output = pa_source_output_new(source, __FILE__, c->client->name, &p->sample_spec, NULL, -1); + pa_source_output_new_data_init(&data); + data.driver = __FILE__; + data.module = o->module; + data.client = c->client; + pa_source_output_new_data_set_source(&data, source, FALSE); + pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist); + pa_source_output_new_data_set_sample_spec(&data, &o->sample_spec); + + pa_source_output_new(&c->source_output, p->core, &data); + pa_source_output_new_data_done(&data); + if (!c->source_output) { - pa_log(__FILE__": Failed to create source output."); + pa_log("Failed to create source output."); goto fail; } - c->source_output->owner = p->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; - l = (size_t) (pa_bytes_per_second(&p->sample_spec)*RECORD_BUFFER_SECONDS); + pa_source_output_set_requested_latency(c->source_output, DEFAULT_SOURCE_LATENCY); + + l = (size_t) (pa_bytes_per_second(&o->sample_spec)*RECORD_BUFFER_SECONDS); c->output_memblockq = pa_memblockq_new( 0, l, 0, - pa_frame_size(&p->sample_spec), + pa_frame_size(&o->sample_spec), 1, 0, - NULL, - p->core->memblock_stat); - pa_iochannel_socket_set_sndbuf(io, l/RECORD_BUFFER_FRAGMENTS*2); + 0, + NULL); + pa_iochannel_socket_set_sndbuf(io, l); + + pa_source_output_put(c->source_output); } - pa_iochannel_set_callback(c->io, io_callback, c); pa_idxset_put(p->connections, c, 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); - return; - + fail: - if (c) - connection_free(c); + connection_unlink(c); } -pa_protocol_simple* pa_protocol_simple_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma) { - pa_protocol_simple* p = NULL; - int enable; - assert(core && server && ma); +void pa_simple_protocol_disconnect(pa_simple_protocol *p, pa_module *m) { + connection *c; + void *state = NULL; - p = pa_xmalloc0(sizeof(pa_protocol_simple)); - p->module = m; - p->core = core; - p->server = server; - p->connections = pa_idxset_new(NULL, NULL); + pa_assert(p); + pa_assert(m); - p->sample_spec = core->default_sample_spec; - if (pa_modargs_get_sample_spec(ma, &p->sample_spec) < 0) { - pa_log(__FILE__": Failed to parse sample type specification."); - goto fail; - } + while ((c = pa_idxset_iterate(p->connections, &state, NULL))) + if (c->options->module == m) + connection_unlink(c); +} - p->source_name = pa_xstrdup(pa_modargs_get_value(ma, "source", NULL)); - p->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL)); - - enable = 0; - if (pa_modargs_get_value_boolean(ma, "record", &enable) < 0) { - pa_log(__FILE__": record= expects a numeric argument."); - goto fail; - } - p->mode = enable ? RECORD : 0; +static pa_simple_protocol* simple_protocol_new(pa_core *c) { + pa_simple_protocol *p; - enable = 1; - if (pa_modargs_get_value_boolean(ma, "playback", &enable) < 0) { - pa_log(__FILE__": playback= expects a numeric argument."); - goto fail; - } - p->mode |= enable ? PLAYBACK : 0; + pa_assert(c); + + p = pa_xnew(pa_simple_protocol, 1); + PA_REFCNT_INIT(p); + p->core = c; + p->connections = pa_idxset_new(NULL, NULL); + + pa_assert_se(pa_shared_set(c, "simple-protocol", p) >= 0); - if ((p->mode & (RECORD|PLAYBACK)) == 0) { - pa_log(__FILE__": neither playback nor recording enabled for protocol."); - goto fail; - } - - pa_socket_server_set_callback(p->server, on_connection, p); - return p; +} -fail: - if (p) - pa_protocol_simple_free(p); - return NULL; +pa_simple_protocol* pa_simple_protocol_get(pa_core *c) { + pa_simple_protocol *p; + + if ((p = pa_shared_get(c, "simple-protocol"))) + return pa_simple_protocol_ref(p); + + return simple_protocol_new(c); } +pa_simple_protocol* pa_simple_protocol_ref(pa_simple_protocol *p) { + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); -void pa_protocol_simple_free(pa_protocol_simple *p) { - struct connection *c; - assert(p); + PA_REFCNT_INC(p); - if (p->connections) { - while((c = pa_idxset_first(p->connections, NULL))) - connection_free(c); - - pa_idxset_free(p->connections, NULL, NULL); - } + return p; +} + +void pa_simple_protocol_unref(pa_simple_protocol *p) { + connection *c; + pa_assert(p); + pa_assert(PA_REFCNT_VALUE(p) >= 1); + + if (PA_REFCNT_DEC(p) > 0) + return; + + while ((c = pa_idxset_first(p->connections, NULL))) + connection_unlink(c); + + pa_idxset_free(p->connections, NULL, NULL); + + pa_assert_se(pa_shared_remove(p->core, "simple-protocol") >= 0); - if (p->server) - pa_socket_server_unref(p->server); pa_xfree(p); } +pa_simple_options* pa_simple_options_new(void) { + pa_simple_options *o; + + o = pa_xnew0(pa_simple_options, 1); + PA_REFCNT_INIT(o); + + o->record = FALSE; + o->playback = TRUE; + + return o; +} + +pa_simple_options* pa_simple_options_ref(pa_simple_options *o) { + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + PA_REFCNT_INC(o); + + return o; +} + +void pa_simple_options_unref(pa_simple_options *o) { + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + if (PA_REFCNT_DEC(o) > 0) + return; + + pa_xfree(o->default_sink); + pa_xfree(o->default_source); + + pa_xfree(o); +} + +int pa_simple_options_parse(pa_simple_options *o, pa_core *c, pa_modargs *ma) { + pa_bool_t enabled; + + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + pa_assert(ma); + + o->sample_spec = c->default_sample_spec; + if (pa_modargs_get_sample_spec_and_channel_map(ma, &o->sample_spec, &o->channel_map, PA_CHANNEL_MAP_DEFAULT) < 0) { + pa_log("Failed to parse sample type specification."); + return -1; + } + + pa_xfree(o->default_source); + o->default_source = pa_xstrdup(pa_modargs_get_value(ma, "source", NULL)); + + pa_xfree(o->default_sink); + o->default_sink = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL)); + + enabled = o->record; + if (pa_modargs_get_value_boolean(ma, "record", &enabled) < 0) { + pa_log("record= expects a boolean argument."); + return -1; + } + o->record = enabled; + + enabled = o->playback; + if (pa_modargs_get_value_boolean(ma, "playback", &enabled) < 0) { + pa_log("playback= expects a boolean argument."); + return -1; + } + o->playback = enabled; + + if (!o->playback && !o->record) { + pa_log("neither playback nor recording enabled for protocol."); + return -1; + } + + return 0; +} |