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-rw-r--r--src/protocol-simple.c444
1 files changed, 0 insertions, 444 deletions
diff --git a/src/protocol-simple.c b/src/protocol-simple.c
deleted file mode 100644
index 3a52e311..00000000
--- a/src/protocol-simple.c
+++ /dev/null
@@ -1,444 +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 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 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 <assert.h>
-#include <stdlib.h>
-#include <limits.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-
-#include "sink-input.h"
-#include "source-output.h"
-#include "protocol-simple.h"
-#include "client.h"
-#include "sample-util.h"
-#include "namereg.h"
-
-struct connection {
- struct pa_protocol_simple *protocol;
- struct pa_iochannel *io;
- struct pa_sink_input *sink_input;
- struct pa_source_output *source_output;
- struct pa_client *client;
- struct pa_memblockq *input_memblockq, *output_memblockq;
- void *fixed_source;
-
- struct {
- struct pa_memblock *current_memblock;
- size_t memblock_index, fragment_size;
- } playback;
-};
-
-struct pa_protocol_simple {
- struct pa_module *module;
- struct pa_core *core;
- struct pa_socket_server*server;
- struct pa_idxset *connections;
- enum {
- RECORD = 1,
- PLAYBACK = 2,
- DUPLEX = 3
- } mode;
- struct pa_sample_spec sample_spec;
- uint32_t sink_index, source_index;
-};
-
-#define PLAYBACK_BUFFER_SECONDS (.5)
-#define PLAYBACK_BUFFER_FRAGMENTS (10)
-#define RECORD_BUFFER_SECONDS (5)
-#define RECORD_BUFFER_FRAGMENTS (100)
-
-static void connection_free(struct connection *c) {
- assert(c);
-
- pa_idxset_remove_by_data(c->protocol->connections, c, NULL);
-
- if (c->playback.current_memblock)
- pa_memblock_unref(c->playback.current_memblock);
- if (c->sink_input)
- pa_sink_input_free(c->sink_input);
- if (c->source_output)
- pa_source_output_free(c->source_output);
- if (c->client)
- pa_client_free(c->client);
- if (c->io)
- pa_iochannel_free(c->io);
- if (c->input_memblockq)
- pa_memblockq_free(c->input_memblockq);
- if (c->output_memblockq)
- pa_memblockq_free(c->output_memblockq);
- if (c->fixed_source)
- c->protocol->core->mainloop->cancel_fixed(c->protocol->core->mainloop, c->fixed_source);
- free(c);
-}
-
-static int do_read(struct connection *c) {
- struct pa_memchunk chunk;
- ssize_t r;
- size_t l;
-
- if (!c->sink_input || !(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);
- assert(c->playback.current_memblock && c->playback.current_memblock->length >= l);
- c->playback.memblock_index = 0;
- }
-
- if ((r = pa_iochannel_read(c->io, c->playback.current_memblock->data+c->playback.memblock_index, l)) <= 0) {
- fprintf(stderr, __FILE__": read() failed: %s\n", r == 0 ? "EOF" : strerror(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, 0);
- assert(c->sink_input);
- pa_sink_notify(c->sink_input->sink);
-
- return 0;
-}
-
-static int do_write(struct connection *c) {
- struct pa_memchunk chunk;
- ssize_t r;
-
- if (!c->source_output)
- return 0;
-
- 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, chunk.memblock->data+chunk.index, chunk.length)) < 0) {
- pa_memblock_unref(chunk.memblock);
- fprintf(stderr, "write(): %s\n", strerror(errno));
- return -1;
- }
-
- pa_memblockq_drop(c->output_memblockq, 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->enable_fixed);
- c->protocol->core->mainloop->enable_fixed(c->protocol->core->mainloop, c->fixed_source, 0);
-
- if (pa_iochannel_is_hungup(c->io))
- goto fail;
-
- if (pa_iochannel_is_writable(c->io))
- if (do_write(c) < 0)
- goto fail;
-
- if (pa_iochannel_is_readable(c->io))
- if (do_read(c) < 0)
- goto fail;
-
- return;
-
-fail:
- connection_free(c);
-}
-
-/*** sink_input callbacks ***/
-
-static int sink_input_peek_cb(struct pa_sink_input *i, struct pa_memchunk *chunk) {
- struct connection*c;
- assert(i && i->userdata && chunk);
- c = i->userdata;
-
- if (pa_memblockq_peek(c->input_memblockq, chunk) < 0)
- return -1;
-
- return 0;
-}
-
-static void sink_input_drop_cb(struct pa_sink_input *i, size_t length) {
- struct connection*c = i->userdata;
- assert(i && c && length);
-
- pa_memblockq_drop(c->input_memblockq, length);
-
- /* do something */
- assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->enable_fixed);
- c->protocol->core->mainloop->enable_fixed(c->protocol->core->mainloop, c->fixed_source, 1);
-}
-
-static void sink_input_kill_cb(struct pa_sink_input *i) {
- assert(i && i->userdata);
- connection_free((struct connection *) i->userdata);
-}
-
-
-static uint32_t sink_input_get_latency_cb(struct pa_sink_input *i) {
- struct connection*c = i->userdata;
- assert(i && c);
- return pa_samples_usec(pa_memblockq_get_length(c->input_memblockq), &c->sink_input->sample_spec);
-}
-
-/*** source_output callbacks ***/
-
-static void source_output_push_cb(struct pa_source_output *o, const struct 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->enable_fixed);
- c->protocol->core->mainloop->enable_fixed(c->protocol->core->mainloop, c->fixed_source, 1);
-}
-
-static void source_output_kill_cb(struct pa_source_output *o) {
- assert(o && o->userdata);
- connection_free((struct connection *) o->userdata);
-}
-
-/*** client callbacks ***/
-
-static void client_kill_cb(struct pa_client *c) {
- assert(c && c->userdata);
- connection_free((struct connection *) c->userdata);
-}
-
-/*** pa_iochannel callbacks ***/
-
-static void io_callback(struct pa_iochannel*io, void *userdata) {
- struct connection *c = userdata;
- assert(io && c && c->io == io);
-
- do_work(c);
-}
-
-/*** fixed callback ***/
-
-static void fixed_callback(struct pa_mainloop_api*a, void *id, void *userdata) {
- struct connection *c = userdata;
- assert(a && c && c->fixed_source == id);
-
- do_work(c);
-}
-
-/*** socket_server callbacks ***/
-
-static void on_connection(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata) {
- struct pa_protocol_simple *p = userdata;
- struct connection *c = NULL;
- char cname[256];
- assert(s && io && p);
-
- c = malloc(sizeof(struct connection));
- assert(c);
- c->io = io;
- c->sink_input = NULL;
- c->source_output = NULL;
- c->fixed_source = NULL;
- c->input_memblockq = c->output_memblockq = NULL;
- c->protocol = p;
- c->playback.current_memblock = NULL;
- c->playback.memblock_index = 0;
- c->playback.fragment_size = 0;
-
- pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname));
- c->client = pa_client_new(p->core, "SIMPLE", cname);
- assert(c->client);
- c->client->owner = p->module;
- c->client->kill = client_kill_cb;
- c->client->userdata = c;
-
- if (p->mode & PLAYBACK) {
- struct pa_sink *sink;
- size_t l;
-
- if (!(sink = pa_idxset_get_by_index(p->core->sinks, p->sink_index)))
- if (!(sink = pa_sink_get_default(p->core))) {
- fprintf(stderr, "Failed to get sink.\n");
- goto fail;
- }
-
- c->sink_input = pa_sink_input_new(sink, c->client->name, &p->sample_spec);
- if (!c->sink_input) {
- fprintf(stderr, "Failed to create sink input.\n");
- 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->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);
- c->input_memblockq = pa_memblockq_new(l, 0, pa_sample_size(&p->sample_spec), l/2, l/PLAYBACK_BUFFER_FRAGMENTS);
- assert(c->input_memblockq);
- pa_iochannel_socket_set_rcvbuf(io, l/PLAYBACK_BUFFER_FRAGMENTS*5);
- c->playback.fragment_size = l/10;
- }
-
- if (p->mode & RECORD) {
- struct pa_source *source;
- size_t l;
-
- if (!(source = pa_idxset_get_by_index(p->core->sources, p->source_index)))
- if (!(source = pa_source_get_default(p->core))) {
- fprintf(stderr, "Failed to get source.\n");
- goto fail;
- }
-
- c->source_output = pa_source_output_new(source, c->client->name, &p->sample_spec);
- if (!c->source_output) {
- fprintf(stderr, "Failed to create source output.\n");
- 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->userdata = c;
-
- l = (size_t) (pa_bytes_per_second(&p->sample_spec)*RECORD_BUFFER_SECONDS);
- c->output_memblockq = pa_memblockq_new(l, 0, pa_sample_size(&p->sample_spec), 0, 0);
- pa_iochannel_socket_set_sndbuf(io, l/RECORD_BUFFER_FRAGMENTS*2);
- }
-
- pa_iochannel_set_callback(c->io, io_callback, c);
- pa_idxset_put(p->connections, c, NULL);
-
- c->fixed_source = p->core->mainloop->source_fixed(p->core->mainloop, fixed_callback, c);
- assert(c->fixed_source);
- p->core->mainloop->enable_fixed(p->core->mainloop, c->fixed_source, 0);
-
- return;
-
-fail:
- if (c)
- connection_free(c);
-}
-
-struct pa_protocol_simple* pa_protocol_simple_new(struct pa_core *core, struct pa_socket_server *server, struct pa_module *m, struct pa_modargs *ma) {
- struct pa_protocol_simple* p = NULL;
- uint32_t enable;
- assert(core && server && ma);
-
- p = malloc(sizeof(struct pa_protocol_simple));
- assert(p);
- memset(p, 0, sizeof(struct pa_protocol_simple));
-
- p->module = m;
- p->core = core;
- p->server = server;
- p->connections = pa_idxset_new(NULL, NULL);
-
- p->sample_spec = core->default_sample_spec;
- if (pa_modargs_get_sample_spec(ma, &p->sample_spec) < 0) {
- fprintf(stderr, "Failed to parse sample type specification.\n");
- goto fail;
- }
-
- if (pa_modargs_get_source_index(ma, core, &p->source_index) < 0) {
- fprintf(stderr, __FILE__": source does not exist.\n");
- goto fail;
- }
-
- if (pa_modargs_get_sink_index(ma, core, &p->sink_index) < 0) {
- fprintf(stderr, __FILE__": sink does not exist.\n");
- goto fail;
- }
-
- enable = 0;
- if (pa_modargs_get_value_u32(ma, "record", &enable) < 0) {
- fprintf(stderr, __FILE__": record= expects a numeric argument.\n");
- goto fail;
- }
- p->mode = enable ? RECORD : 0;
-
- enable = 1;
- if (pa_modargs_get_value_u32(ma, "playback", &enable) < 0) {
- fprintf(stderr, __FILE__": playback= expects a numeric argument.\n");
- goto fail;
- }
- p->mode |= enable ? PLAYBACK : 0;
-
- if ((p->mode & (RECORD|PLAYBACK)) == 0) {
- fprintf(stderr, __FILE__": neither playback nor recording enabled for protocol.\n");
- goto fail;
- }
-
- pa_socket_server_set_callback(p->server, on_connection, p);
-
- return p;
-
-fail:
- if (p)
- pa_protocol_simple_free(p);
- return NULL;
-}
-
-
-void pa_protocol_simple_free(struct pa_protocol_simple *p) {
- struct connection *c;
- assert(p);
-
- if (p->connections) {
- while((c = pa_idxset_first(p->connections, NULL)))
- connection_free(c);
-
- pa_idxset_free(p->connections, NULL, NULL);
- }
-
- if (p->server)
- pa_socket_server_free(p->server);
- free(p);
-}
-