rename src to polyp

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@90 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 0 insertions, 847 deletions

diff --git a/src/protocol-esound.c b/src/protocol-esound.c
deleted file mode 100644
index 8a7c4bcb..00000000
--- a/src/protocol-esound.c
+++ /dev/null
@@ -1,847 +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 <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 "authkey.h"
-
-#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)
-
-/* This is heavily based on esound's code */
-
-struct connection {
-    uint32_t index;
-    struct pa_protocol_esound *protocol;
-    struct pa_iochannel *io;
-    struct 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;
-    struct pa_sink_input *sink_input;
-    struct pa_source_output *source_output;
-    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_esound {
-    int public;
-    struct pa_module *module;
-    struct pa_core *core;
-    struct pa_socket_server *server;
-    struct pa_idxset *connections;
-    uint32_t sink_index, source_index;
-    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(struct pa_sink_input *i, size_t length);
-static int sink_input_peek_cb(struct pa_sink_input *i, struct pa_memchunk *chunk);
-static void sink_input_kill_cb(struct pa_sink_input *i);
-static uint32_t sink_input_get_latency_cb(struct pa_sink_input *i);
-
-static void source_output_push_cb(struct pa_source_output *o, const struct pa_memchunk *chunk);
-static void source_output_kill_cb(struct 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);
-
-/* 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), NULL, "sample cache" },
-    { sizeof(int),                    NULL, "sample free" },
-    { sizeof(int),                    NULL, "sample play" },
-    { sizeof(int),                    NULL, "sample loop" },
-    { sizeof(int),                    NULL, "sample stop" },
-    { -1,                             NULL, "TODO: sample kill" },
-
-    { ESD_KEY_LEN + sizeof(int),      NULL, "standby" },
-    { ESD_KEY_LEN + sizeof(int),      NULL, "resume" },
-
-    { ESD_NAME_MAX,                   NULL, "sample getid" },
-    { 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_free(c->sink_input);
-    if (c->source_output)
-        pa_source_output_free(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);
-    
-    free(c->read_data);
-    free(c->write_data);
-    
-    pa_iochannel_free(c->io);
-    
-    if (c->fixed_source)
-        c->protocol->core->mainloop->cancel_fixed(c->protocol->core->mainloop, c->fixed_source);
-    
-    free(c);
-}
-
-static struct pa_sink* get_output_sink(struct pa_protocol_esound *p) {
-    struct pa_sink *s;
-    assert(p);
-
-    if (!(s = pa_idxset_get_by_index(p->core->sinks, p->sink_index)))
-        s = pa_sink_get_default(p->core);
-
-    p->sink_index = s ? s->index : PA_IDXSET_INVALID;
-    return s;
-}
-
-static struct pa_source* get_input_source(struct pa_protocol_esound *p) {
-    struct pa_source *s;
-    assert(p);
-
-    if (!(s = pa_idxset_get_by_index(p->core->sources, p->sink_index)))
-        s = pa_source_get_default(p->core);
-
-    p->source_index = s ? s->index : PA_IDXSET_INVALID;
-    return s;
-}
-
-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->enable_fixed);
-    c->protocol->core->mainloop->enable_fixed(c->protocol->core->mainloop, c->fixed_source, 1);
-
-    t = c->write_data_length+length;
-    
-    if (c->write_data_alloc < t)
-        c->write_data = realloc(c->write_data, c->write_data_alloc = t);
-
-    assert(c->write_data);
-
-    i = c->write_data_length;
-    c->write_data_length += length;
-    
-    return c->write_data+i;
-}
-
-/*** esound commands ***/
-
-static int esd_proto_connect(struct connection *c, 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) {
-            fprintf(stderr, __FILE__": kicked client with invalid authorization key.\n");
-            return -1;
-        }
-
-        c->authorized = 1;
-    }
-    
-    ekey = *(uint32_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 {
-        fprintf(stderr, __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, esd_proto_t request, const void *data, size_t length) {
-    char name[ESD_NAME_MAX];
-    int format, rate;
-    struct pa_sink *sink;
-    struct pa_sample_spec ss;
-    size_t l;
-    assert(c && length == (sizeof(int)*2+ESD_NAME_MAX));
-    
-    format = maybe_swap_endian_32(c->swap_byte_order, *(int*)data);
-    rate = maybe_swap_endian_32(c->swap_byte_order, *((int*)data + 1));
-
-    ss.rate = rate;
-    ss.channels = ((format & ESD_MASK_CHAN) == ESD_STEREO) ? 2 : 1;
-    ss.format = ((format & ESD_MASK_BITS) == ESD_BITS16) ? PA_SAMPLE_S16NE : PA_SAMPLE_U8;
-
-    if (!pa_sample_spec_valid(&ss))
-        return -1;
-
-    if (!(sink = get_output_sink(c->protocol)))
-        return -1;
-    
-    strncpy(name, data + sizeof(int)*2, sizeof(name));
-    name[sizeof(name)-1] = 0;
-
-    pa_client_rename(c->client, name);
-
-    assert(!c->input_memblockq);
-
-    l = (size_t) (pa_bytes_per_second(&ss)*PLAYBACK_BUFFER_SECONDS); 
-    c->input_memblockq = pa_memblockq_new(l, 0, pa_sample_size(&ss), l/2, l/PLAYBACK_BUFFER_FRAGMENTS);
-    assert(c->input_memblockq);
-    pa_iochannel_socket_set_rcvbuf(c->io, l/PLAYBACK_BUFFER_FRAGMENTS*2);
-    c->playback.fragment_size = l/10;
-    
-    assert(!c->sink_input);
-    c->sink_input = pa_sink_input_new(sink, name, &ss);
-    assert(c->sink_input);
-
-    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;
-    struct pa_source *source;
-    struct pa_sample_spec ss;
-    size_t l;
-    assert(c && length == (sizeof(int)*2+ESD_NAME_MAX));
-    
-    format = maybe_swap_endian_32(c->swap_byte_order, *(int*)data);
-    rate = maybe_swap_endian_32(c->swap_byte_order, *((int*)data + 1));
-
-    ss.rate = rate;
-    ss.channels = ((format & ESD_MASK_CHAN) == ESD_STEREO) ? 2 : 1;
-    ss.format = ((format & ESD_MASK_BITS) == ESD_BITS16) ? PA_SAMPLE_S16NE : PA_SAMPLE_U8;
-
-    if (!pa_sample_spec_valid(&ss))
-        return -1;
-
-    if (request == ESD_PROTO_STREAM_MON) {
-        struct pa_sink* sink;
-
-        if (!(sink = get_output_sink(c->protocol)))
-            return -1;
-
-        if (!(source = sink->monitor_source))
-            return -1;
-    } else {
-        assert(request == ESD_PROTO_STREAM_REC);
-        
-        if (!(source = get_input_source(c->protocol)))
-            return -1;
-    }
-    
-    strncpy(name, data + sizeof(int)*2, sizeof(name));
-    name[sizeof(name)-1] = 0;
-
-    pa_client_rename(c->client, name);
-
-    assert(!c->output_memblockq);
-
-    l = (size_t) (pa_bytes_per_second(&ss)*RECORD_BUFFER_SECONDS); 
-    c->output_memblockq = pa_memblockq_new(l, 0, pa_sample_size(&ss), 0, 0);
-    assert(c->output_memblockq);
-    pa_iochannel_socket_set_sndbuf(c->io, l/RECORD_BUFFER_FRAGMENTS*2);
-    
-    assert(!c->source_output);
-    c->source_output = pa_source_output_new(source, name, &ss);
-    assert(c->source_output);
-    
-    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->userdata = c;
-
-    c->state = ESD_STREAMING_DATA;
-
-    c->protocol->n_player++;
-    
-    return 0;
-}
-
-static int esd_proto_get_latency(struct connection *c, esd_proto_t request, const void *data, size_t length) {
-    struct pa_sink *sink;
-    int latency, *lag;
-    assert(c && !data && length == 0);
-
-    if (!(sink = get_output_sink(c->protocol)))
-        latency = 0;
-    else {
-        float usec = pa_sink_get_latency(sink);
-        usec += PLAYBACK_BUFFER_SECONDS*1000000;          /* A better estimation would be a good idea! */
-        latency = (int) ((usec*44100)/1000000);
-    }
-    
-    lag = connection_write(c, sizeof(int));
-    assert(lag);
-    *lag = c->swap_byte_order ? swap_endian_32(latency) : latency;
-    return 0;
-}
-
-static int esd_proto_server_info(struct connection *c, esd_proto_t request, const void *data, size_t length) {
-    int rate = 44100, format = ESD_STEREO|ESD_BITS16;
-    int *response;
-    struct pa_sink *sink;
-    assert(c && data && length == sizeof(int));
-
-    if ((sink = get_output_sink(c->protocol))) {
-        rate = sink->sample_spec.rate;
-        format = (sink->sample_spec.format == PA_SAMPLE_U8) ? ESD_BITS8 : ESD_BITS16;
-        format |= (sink->sample_spec.channels >= 2) ? ESD_STEREO : ESD_MONO;
-    }
-    
-    response = connection_write(c, sizeof(int)*3);
-    assert(response);
-    *(response++) = 0;
-    *(response++) = maybe_swap_endian_32(c->swap_byte_order, rate);
-    *(response++) = maybe_swap_endian_32(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) {
-    void *response;
-    size_t t, k, s;
-    struct connection *conn;
-    size_t index = PA_IDXSET_INVALID;
-    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;
-    response = connection_write(c, (t = s+k*(c->protocol->n_player+1)));
-    assert(k);
-
-    for (conn = pa_idxset_first(c->protocol->connections, &index); conn; conn = pa_idxset_next(c->protocol->connections, &index)) {
-        int format = ESD_BITS16 | ESD_STEREO, rate = 44100, volume = 0xFF;
-
-        if (conn->state != ESD_STREAMING_DATA)
-            continue;
-
-        assert(t >= s+k+k);
-
-        if (conn->sink_input) {
-            rate = conn->sink_input->sample_spec.rate;
-            volume = (conn->sink_input->volume*0xFF)/0x100;
-            format = (conn->sink_input->sample_spec.format == PA_SAMPLE_U8) ? ESD_BITS8 : ESD_BITS16;
-            format |= (conn->sink_input->sample_spec.channels >= 2) ? ESD_STEREO : ESD_MONO;
-        }
-        
-        /* id */
-        *((int*) response) = maybe_swap_endian_32(c->swap_byte_order, (int) conn->index);
-        response += sizeof(int);
-
-        /* name */
-        assert(conn->client);
-        strncpy(response, conn->client->name, ESD_NAME_MAX);
-        response += ESD_NAME_MAX;
-
-        /* rate */
-        *((int*) response) = maybe_swap_endian_32(c->swap_byte_order,  rate);
-        response += sizeof(int);
-
-        /* left */
-        *((int*) response) = maybe_swap_endian_32(c->swap_byte_order,  volume);
-        response += sizeof(int);
-
-        /*right*/
-        *((int*) response) = maybe_swap_endian_32(c->swap_byte_order,  volume);
-        response += sizeof(int);
-
-        /*format*/
-        *((int*) response) = maybe_swap_endian_32(c->swap_byte_order, format);
-        response += sizeof(int);
-
-        t-= k;
-    }
-
-    assert(t == s+k);
-    memset(response, 0, t);
-    return 0;
-}
-
-static int esd_proto_stream_pan(struct connection *c, esd_proto_t request, const void *data, size_t length) {
-    int *ok;
-    uint32_t index, volume;
-    struct connection *conn;
-    assert(c && data && length == sizeof(int)*3);
-    
-    index = (uint32_t) maybe_swap_endian_32(c->swap_byte_order, *(int*)data);
-    volume = (uint32_t) maybe_swap_endian_32(c->swap_byte_order, *((int*)data + 1));
-    volume = (volume*0x100)/0xFF;
-
-    ok = connection_write(c, sizeof(int));
-    assert(ok);
-
-    if ((conn = pa_idxset_get_by_index(c->protocol->connections, index))) {
-        assert(conn->sink_input);
-        conn->sink_input->volume = volume;
-        *ok = 1;
-    } else
-        *ok = 0;
-    
-    return 0;
-}
-
-/*** client callbacks ***/
-
-static void client_kill_cb(struct 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);
-
-    if (c->state == ESD_NEXT_REQUEST) {
-        ssize_t r;
-        assert(c->read_data_length < sizeof(c->request));
-
-        if ((r = pa_iochannel_read(c->io, ((void*) &c->request) + c->read_data_length, sizeof(c->request) - c->read_data_length)) <= 0) {
-            fprintf(stderr, "protocol-esound.c: read() failed: %s\n", r == 0 ? "EOF" : strerror(errno));
-            return -1;
-        }
-
-        if ((c->read_data_length+= r) >= sizeof(c->request)) {
-            struct proto_handler *handler;
-            
-            if (c->swap_byte_order)
-                c->request = swap_endian_32(c->request);
-
-            if (c->request < ESD_PROTO_CONNECT || c->request > ESD_PROTO_MAX) {
-                fprintf(stderr, "protocol-esound.c: recieved invalid request.\n");
-                return -1;
-            }
-
-            handler = proto_map+c->request;
-
-            if (!handler->proc) {
-                fprintf(stderr, "protocol-sound.c: recieved unimplemented request.\n");
-                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 = realloc(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, c->read_data + c->read_data_length, handler->data_length - c->read_data_length)) <= 0) {
-            fprintf(stderr, "protocol-esound.c: read() failed: %s\n", r == 0 ? "EOF" : 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_STREAMING_DATA && c->sink_input) {
-        struct pa_memchunk chunk;
-        ssize_t r;
-        size_t l;
-
-        assert(c->input_memblockq);
-
-        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);
-            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) {
-    assert(c && c->io);
-
-    if (c->write_data_length) {
-        ssize_t r;
-        
-        assert(c->write_data_index < c->write_data_length);
-        if ((r = pa_iochannel_write(c->io, c->write_data+c->write_data_index, c->write_data_length-c->write_data_index)) < 0) {
-            fprintf(stderr, __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) {
-        struct 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, chunk.memblock->data+chunk.index, chunk.length)) < 0) {
-            pa_memblock_unref(chunk.memblock);
-            fprintf(stderr, __FILE__": 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);
-}
-
-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);
-}
-
-/*** 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);
-}
-
-/*** socket server callback ***/
-
-static void on_connection(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata) {
-    struct connection *c;
-    char cname[256];
-    assert(s && io && userdata);
-
-    c = malloc(sizeof(struct connection));
-    assert(c);
-    c->protocol = userdata;
-    c->io = io;
-    pa_iochannel_set_callback(c->io, io_callback, c);
-
-    pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname));
-    assert(c->protocol->core);
-    c->client = pa_client_new(c->protocol->core, "ESOUND", cname);
-    assert(c->client);
-    c->client->owner = c->protocol->module;
-    c->client->kill = client_kill_cb;
-    c->client->userdata = c;
-    
-    c->authorized = c->protocol->public;
-    c->swap_byte_order = 0;
-
-    c->read_data_length = 0;
-    c->read_data = malloc(c->read_data_alloc = proto_map[ESD_PROTO_CONNECT].data_length);
-    assert(c->read_data);
-
-    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->fixed_source = c->protocol->core->mainloop->source_fixed(c->protocol->core->mainloop, fixed_callback, c);
-    assert(c->fixed_source);
-    c->protocol->core->mainloop->enable_fixed(c->protocol->core->mainloop, c->fixed_source, 0);
-    
-    pa_idxset_put(c->protocol->connections, c, &c->index);
-}
-
-/*** entry points ***/
-
-struct pa_protocol_esound* pa_protocol_esound_new(struct pa_core*core, struct pa_socket_server *server, struct pa_module *m, struct pa_modargs *ma) {
-    uint32_t source_index, sink_index;
-    struct pa_protocol_esound *p;
-    assert(core && server && ma);
-
-    if (pa_modargs_get_source_index(ma, core, &source_index) < 0) {
-        fprintf(stderr, __FILE__": source does not exist.\n");
-        return NULL;
-    }
-
-    if (pa_modargs_get_sink_index(ma, core, &sink_index) < 0) {
-        fprintf(stderr, __FILE__": sink does not exist.\n");
-        return NULL;
-    }
-    p = malloc(sizeof(struct pa_protocol_esound));
-    assert(p);
-
-    if (pa_authkey_load_auto(pa_modargs_get_value(ma, "cookie", DEFAULT_COOKIE_FILE), p->esd_key, sizeof(p->esd_key)) < 0) {
-        free(p);
-        return NULL;
-    }
-
-    p->module = m;
-    p->public = 0;
-    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_index = sink_index;
-    p->source_index = source_index;
-    p->n_player = 0;
-
-    return p;
-}
-
-void pa_protocol_esound_free(struct 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_free(p->server);
-    free(p);
-}