diff options
Diffstat (limited to 'polyp/polyplib-context.c')
| -rw-r--r-- | polyp/polyplib-context.c | 1550 |
1 files changed, 1550 insertions, 0 deletions
diff --git a/polyp/polyplib-context.c b/polyp/polyplib-context.c new file mode 100644 index 00000000..35001d3d --- /dev/null +++ b/polyp/polyplib-context.c @@ -0,0 +1,1550 @@ +/* $Id$ */ + +/*** + 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 <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netdb.h> + +#include "polyplib.h" +#include "native-common.h" +#include "pdispatch.h" +#include "pstream.h" +#include "dynarray.h" +#include "socket-client.h" +#include "pstream-util.h" +#include "authkey.h" +#include "util.h" +#include "xmalloc.h" + +#define DEFAULT_MAXLENGTH 204800 +#define DEFAULT_TLENGTH 10240 +#define DEFAULT_PREBUF 4096 +#define DEFAULT_MINREQ 1024 +#define DEFAULT_FRAGSIZE 1024 + +#define DEFAULT_TIMEOUT (5*60) +#define DEFAULT_SERVER "/tmp/polypaudio/native" +#define DEFAULT_PORT "4713" + +struct pa_context { + char *name; + struct pa_mainloop_api* mainloop; + struct pa_socket_client *client; + struct pa_pstream *pstream; + struct pa_pdispatch *pdispatch; + struct pa_dynarray *record_streams, *playback_streams; + struct pa_stream *first_stream; + uint32_t ctag; + uint32_t error; + enum { + CONTEXT_UNCONNECTED, + CONTEXT_CONNECTING, + CONTEXT_AUTHORIZING, + CONTEXT_SETTING_NAME, + CONTEXT_READY, + CONTEXT_DEAD + } state; + + void (*connect_complete_callback)(struct pa_context*c, int success, void *userdata); + void *connect_complete_userdata; + + void (*drain_complete_callback)(struct pa_context*c, void *userdata); + void *drain_complete_userdata; + + void (*die_callback)(struct pa_context*c, void *userdata); + void *die_userdata; + + void (*stat_callback)(struct pa_context*c, uint32_t count, uint32_t total, void *userdata); + void *stat_userdata; + + void (*play_sample_callback)(struct pa_context*c, int success, void *userdata); + void *play_sample_userdata; + + void (*remove_sample_callback)(struct pa_context*c, int success, void *userdata); + void *remove_sample_userdata; + + void (*get_server_info_callback)(struct pa_context*c, const struct pa_server_info* i, void *userdata); + void *get_server_info_userdata; + + void (*get_sink_info_callback)(struct pa_context*c, const struct pa_sink_info* i, int is_last, void *userdata); + void *get_sink_info_userdata; + + void (*get_source_info_callback)(struct pa_context*c, const struct pa_source_info* i, int is_last, void *userdata); + void *get_source_info_userdata; + + void (*subscribe_callback)(struct pa_context *c, enum pa_subscription_event_type t, uint32_t index, void *userdata); + void *subscribe_userdata; + enum pa_subscription_mask subscribe_mask; + + void (*get_client_info_callback)(struct pa_context*c, const struct pa_client_info* i, int is_last, void *userdata); + void *get_client_info_userdata; + + void (*get_module_info_callback)(struct pa_context*c, const struct pa_module_info* i, int is_last, void *userdata); + void *get_module_info_userdata; + + uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH]; +}; + +struct pa_stream { + struct pa_context *context; + struct pa_stream *next, *previous; + + char *name; + struct pa_buffer_attr buffer_attr; + struct pa_sample_spec sample_spec; + uint32_t channel; + int channel_valid; + uint32_t device_index; + enum pa_stream_direction direction; + + enum { STREAM_CREATING, STREAM_READY, STREAM_DEAD} state; + uint32_t requested_bytes; + + void (*read_callback)(struct pa_stream *p, const void*data, size_t length, void *userdata); + void *read_userdata; + + void (*write_callback)(struct pa_stream *p, size_t length, void *userdata); + void *write_userdata; + + void (*create_complete_callback)(struct pa_stream *s, int success, void *userdata); + void *create_complete_userdata; + + void (*drain_complete_callback)(struct pa_stream *s, void *userdata); + void *drain_complete_userdata; + + void (*die_callback)(struct pa_stream*c, void *userdata); + void *die_userdata; + + void (*get_latency_callback)(struct pa_stream*c, uint32_t latency, void *userdata); + void *get_latency_userdata; + + void (*finish_sample_callback)(struct pa_stream*c, int success, void *userdata); + void *finish_sample_userdata; +}; + +static void command_request(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); +static void command_playback_stream_killed(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); +static void command_subscribe_event(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata); + +static const struct pa_pdispatch_command command_table[PA_COMMAND_MAX] = { + [PA_COMMAND_ERROR] = { NULL }, + [PA_COMMAND_REPLY] = { NULL }, + [PA_COMMAND_CREATE_PLAYBACK_STREAM] = { NULL }, + [PA_COMMAND_DELETE_PLAYBACK_STREAM] = { NULL }, + [PA_COMMAND_CREATE_RECORD_STREAM] = { NULL }, + [PA_COMMAND_DELETE_RECORD_STREAM] = { NULL }, + [PA_COMMAND_EXIT] = { NULL }, + [PA_COMMAND_REQUEST] = { command_request }, + [PA_COMMAND_PLAYBACK_STREAM_KILLED] = { command_playback_stream_killed }, + [PA_COMMAND_RECORD_STREAM_KILLED] = { command_playback_stream_killed }, + [PA_COMMAND_SUBSCRIBE_EVENT] = { command_subscribe_event }, +}; + +struct pa_context *pa_context_new(struct pa_mainloop_api *mainloop, const char *name) { + struct pa_context *c; + assert(mainloop && name); + + c = pa_xmalloc(sizeof(struct pa_context)); + c->name = pa_xstrdup(name); + c->mainloop = mainloop; + c->client = NULL; + c->pstream = NULL; + c->pdispatch = NULL; + c->playback_streams = pa_dynarray_new(); + assert(c->playback_streams); + c->record_streams = pa_dynarray_new(); + assert(c->record_streams); + c->first_stream = NULL; + c->error = PA_ERROR_OK; + c->state = CONTEXT_UNCONNECTED; + c->ctag = 0; + + c->connect_complete_callback = NULL; + c->connect_complete_userdata = NULL; + + c->drain_complete_callback = NULL; + c->drain_complete_userdata = NULL; + + c->die_callback = NULL; + c->die_userdata = NULL; + + c->stat_callback = NULL; + c->stat_userdata = NULL; + + c->play_sample_callback = NULL; + c->play_sample_userdata = NULL; + + c->remove_sample_callback = NULL; + c->remove_sample_userdata = NULL; + + c->get_server_info_callback = NULL; + c->get_server_info_userdata = NULL; + + c->get_sink_info_callback = NULL; + c->get_sink_info_userdata = NULL; + + c->get_source_info_callback = NULL; + c->get_source_info_userdata = NULL; + + c->subscribe_callback = NULL; + c->subscribe_userdata = NULL; + + c->get_client_info_callback = NULL; + c->get_client_info_userdata = NULL; + + c->get_module_info_callback = NULL; + c->get_module_info_userdata = NULL; + + pa_check_for_sigpipe(); + return c; +} + +void pa_context_free(struct pa_context *c) { + assert(c); + + while (c->first_stream) + pa_stream_free(c->first_stream); + + if (c->client) + pa_socket_client_free(c->client); + if (c->pdispatch) + pa_pdispatch_free(c->pdispatch); + if (c->pstream) + pa_pstream_free(c->pstream); + if (c->record_streams) + pa_dynarray_free(c->record_streams, NULL, NULL); + if (c->playback_streams) + pa_dynarray_free(c->playback_streams, NULL, NULL); + + pa_xfree(c->name); + pa_xfree(c); +} + +static void stream_dead(struct pa_stream *s) { + assert(s); + + if (s->state == STREAM_DEAD) + return; + + if (s->state == STREAM_READY) { + s->state = STREAM_DEAD; + if (s->die_callback) + s->die_callback(s, s->die_userdata); + } else + s->state = STREAM_DEAD; +} + +static void context_dead(struct pa_context *c) { + struct pa_stream *s; + assert(c); + + if (c->state == CONTEXT_DEAD) + return; + + if (c->pdispatch) + pa_pdispatch_free(c->pdispatch); + c->pdispatch = NULL; + + if (c->pstream) + pa_pstream_free(c->pstream); + c->pstream = NULL; + + if (c->client) + pa_socket_client_free(c->client); + c->client = NULL; + + for (s = c->first_stream; s; s = s->next) + stream_dead(s); + + if (c->state == CONTEXT_READY) { + c->state = CONTEXT_DEAD; + if (c->die_callback) + c->die_callback(c, c->die_userdata); + } else + c->state = CONTEXT_DEAD; +} + +static void pstream_die_callback(struct pa_pstream *p, void *userdata) { + struct pa_context *c = userdata; + assert(p && c); + c->error = PA_ERROR_CONNECTIONTERMINATED; + context_dead(c); +} + +static void pstream_packet_callback(struct pa_pstream *p, struct pa_packet *packet, void *userdata) { + struct pa_context *c = userdata; + assert(p && packet && c); + + if (pa_pdispatch_run(c->pdispatch, packet, c) < 0) { + fprintf(stderr, "polyp.c: invalid packet.\n"); + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + } +} + +static void pstream_memblock_callback(struct pa_pstream *p, uint32_t channel, int32_t delta, const struct pa_memchunk *chunk, void *userdata) { + struct pa_context *c = userdata; + struct pa_stream *s; + assert(p && chunk && c && chunk->memblock && chunk->memblock->data); + + if (!(s = pa_dynarray_get(c->record_streams, channel))) + return; + + if (s->read_callback) + s->read_callback(s, chunk->memblock->data + chunk->index, chunk->length, s->read_userdata); +} + +static int handle_error(struct pa_context *c, uint32_t command, struct pa_tagstruct *t) { + assert(c && t); + + if (command == PA_COMMAND_ERROR) { + if (pa_tagstruct_getu32(t, &c->error) < 0) { + c->error = PA_ERROR_PROTOCOL; + return -1; + } + + return 0; + } + + c->error = (command == PA_COMMAND_TIMEOUT) ? PA_ERROR_TIMEOUT : PA_ERROR_INTERNAL; + return -1; +} + +static void setup_complete_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + assert(pd && c && (c->state == CONTEXT_AUTHORIZING || c->state == CONTEXT_SETTING_NAME)); + + if (command != PA_COMMAND_REPLY) { + handle_error(c, command, t); + context_dead(c); + + if (c->connect_complete_callback) + c->connect_complete_callback(c, 0, c->connect_complete_userdata); + + return; + } + + if (c->state == CONTEXT_AUTHORIZING) { + struct pa_tagstruct *t; + c->state = CONTEXT_SETTING_NAME; + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_SET_NAME); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_puts(t, c->name); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, setup_complete_callback, c); + } else { + assert(c->state == CONTEXT_SETTING_NAME); + + c->state = CONTEXT_READY; + + if (c->connect_complete_callback) + c->connect_complete_callback(c, 1, c->connect_complete_userdata); + } + + return; +} + +static void on_connection(struct pa_socket_client *client, struct pa_iochannel*io, void *userdata) { + struct pa_context *c = userdata; + struct pa_tagstruct *t; + uint32_t tag; + assert(client && c && c->state == CONTEXT_CONNECTING); + + pa_socket_client_free(client); + c->client = NULL; + + if (!io) { + c->error = PA_ERROR_CONNECTIONREFUSED; + context_dead(c); + + if (c->connect_complete_callback) + c->connect_complete_callback(c, 0, c->connect_complete_userdata); + + return; + } + + c->pstream = pa_pstream_new(c->mainloop, io); + assert(c->pstream); + pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c); + pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c); + pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c); + + c->pdispatch = pa_pdispatch_new(c->mainloop, command_table, PA_COMMAND_MAX); + assert(c->pdispatch); + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_AUTH); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_put_arbitrary(t, c->auth_cookie, sizeof(c->auth_cookie)); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, setup_complete_callback, c); + c->state = CONTEXT_AUTHORIZING; +} + +static struct sockaddr *resolve_server(const char *server, size_t *len) { + struct sockaddr *sa; + struct addrinfo hints, *result = NULL; + char *port; + assert(server && len); + + if ((port = strrchr(server, ':'))) + port++; + if (!port) + port = DEFAULT_PORT; + + memset(&hints, 0, sizeof(hints)); + hints.ai_family = PF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = 0; + + if (getaddrinfo(server, port, &hints, &result) != 0) + return NULL; + assert(result); + + sa = pa_xmalloc(*len = result->ai_addrlen); + memcpy(sa, result->ai_addr, *len); + + freeaddrinfo(result); + + return sa; +} + +int pa_context_connect(struct pa_context *c, const char *server, void (*complete) (struct pa_context*c, int success, void *userdata), void *userdata) { + assert(c && c->state == CONTEXT_UNCONNECTED); + + if (pa_authkey_load_from_home(PA_NATIVE_COOKIE_FILE, c->auth_cookie, sizeof(c->auth_cookie)) < 0) { + c->error = PA_ERROR_AUTHKEY; + return -1; + } + + if (!server) + if (!(server = getenv("POLYP_SERVER"))) + server = DEFAULT_SERVER; + + assert(!c->client); + + if (*server == '/') { + if (!(c->client = pa_socket_client_new_unix(c->mainloop, server))) { + c->error = PA_ERROR_CONNECTIONREFUSED; + return -1; + } + } else { + struct sockaddr* sa; + size_t sa_len; + + if (!(sa = resolve_server(server, &sa_len))) { + c->error = PA_ERROR_INVALIDSERVER; + return -1; + } + + c->client = pa_socket_client_new_sockaddr(c->mainloop, sa, sa_len); + pa_xfree(sa); + + if (!c->client) { + c->error = PA_ERROR_CONNECTIONREFUSED; + return -1; + } + } + + c->connect_complete_callback = complete; + c->connect_complete_userdata = userdata; + + pa_socket_client_set_callback(c->client, on_connection, c); + c->state = CONTEXT_CONNECTING; + + return 0; +} + +int pa_context_is_dead(struct pa_context *c) { + assert(c); + return c->state == CONTEXT_DEAD; +} + +int pa_context_is_ready(struct pa_context *c) { + assert(c); + return c->state == CONTEXT_READY; +} + +int pa_context_errno(struct pa_context *c) { + assert(c); + return c->error; +} + +void pa_context_set_die_callback(struct pa_context *c, void (*cb)(struct pa_context *c, void *userdata), void *userdata) { + assert(c); + c->die_callback = cb; + c->die_userdata = userdata; +} + +static void command_playback_stream_killed(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + struct pa_stream *s; + uint32_t channel; + assert(pd && (command == PA_COMMAND_PLAYBACK_STREAM_KILLED || command == PA_COMMAND_RECORD_STREAM_KILLED) && t && c); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (!(s = pa_dynarray_get(command == PA_COMMAND_PLAYBACK_STREAM_KILLED ? c->playback_streams : c->record_streams, channel))) + return; + + c->error = PA_ERROR_KILLED; + stream_dead(s); +} + +static void command_request(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_stream *s; + struct pa_context *c = userdata; + uint32_t bytes, channel; + assert(pd && command == PA_COMMAND_REQUEST && t && c); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + pa_tagstruct_getu32(t, &bytes) < 0 || + !pa_tagstruct_eof(t)) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (!(s = pa_dynarray_get(c->playback_streams, channel))) + return; + + if (s->state != STREAM_READY) + return; + + s->requested_bytes += bytes; + + if (s->requested_bytes && s->write_callback) + s->write_callback(s, s->requested_bytes, s->write_userdata); +} + +static void create_stream_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_stream *s = userdata; + assert(pd && s && s->state == STREAM_CREATING); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(s->context, command, t) < 0) { + context_dead(s->context); + return; + } + + stream_dead(s); + if (s->create_complete_callback) + s->create_complete_callback(s, 0, s->create_complete_userdata); + + return; + } + + if (pa_tagstruct_getu32(t, &s->channel) < 0 || + ((s->direction != PA_STREAM_UPLOAD) && pa_tagstruct_getu32(t, &s->device_index) < 0) || + !pa_tagstruct_eof(t)) { + s->context->error = PA_ERROR_PROTOCOL; + context_dead(s->context); + return; + } + + s->channel_valid = 1; + pa_dynarray_put((s->direction == PA_STREAM_RECORD) ? s->context->record_streams : s->context->playback_streams, s->channel, s); + + s->state = STREAM_READY; + if (s->create_complete_callback) + s->create_complete_callback(s, 1, s->create_complete_userdata); +} + +static void create_stream(struct pa_stream *s, const char *dev) { + struct pa_tagstruct *t; + uint32_t tag; + assert(s); + + s->state = STREAM_CREATING; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + + pa_tagstruct_putu32(t, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_CREATE_PLAYBACK_STREAM : PA_COMMAND_CREATE_RECORD_STREAM); + pa_tagstruct_putu32(t, tag = s->context->ctag++); + pa_tagstruct_puts(t, s->name); + pa_tagstruct_put_sample_spec(t, &s->sample_spec); + pa_tagstruct_putu32(t, (uint32_t) -1); + pa_tagstruct_puts(t, dev ? dev : ""); + pa_tagstruct_putu32(t, s->buffer_attr.maxlength); + if (s->direction == PA_STREAM_PLAYBACK) { + pa_tagstruct_putu32(t, s->buffer_attr.tlength); + pa_tagstruct_putu32(t, s->buffer_attr.prebuf); + pa_tagstruct_putu32(t, s->buffer_attr.minreq); + } else + pa_tagstruct_putu32(t, s->buffer_attr.fragsize); + + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, create_stream_callback, s); +} + +static struct pa_stream *internal_stream_new(struct pa_context *c) { + struct pa_stream *s; + + s = pa_xmalloc(sizeof(struct pa_stream)); + s->context = c; + + s->read_callback = NULL; + s->read_userdata = NULL; + s->write_callback = NULL; + s->write_userdata = NULL; + s->die_callback = NULL; + s->die_userdata = NULL; + s->create_complete_callback = NULL; + s->create_complete_userdata = NULL; + s->get_latency_callback = NULL; + s->get_latency_userdata = NULL; + s->finish_sample_callback = NULL; + s->finish_sample_userdata = NULL; + + s->name = NULL; + s->state = STREAM_CREATING; + s->requested_bytes = 0; + s->channel = 0; + s->channel_valid = 0; + s->device_index = (uint32_t) -1; + + memset(&s->buffer_attr, 0, sizeof(s->buffer_attr)); + + s->next = c->first_stream; + if (s->next) + s->next->previous = s; + s->previous = NULL; + c->first_stream = s; + + return s; +} + +struct pa_stream* pa_stream_new( + struct pa_context *c, + enum pa_stream_direction dir, + const char *dev, + const char *name, + const struct pa_sample_spec *ss, + const struct pa_buffer_attr *attr, + void (*complete) (struct pa_stream*s, int success, void *userdata), + void *userdata) { + + struct pa_stream *s; + + assert(c && name && ss && c->state == CONTEXT_READY && (dir == PA_STREAM_PLAYBACK || dir == PA_STREAM_RECORD)); + + s = internal_stream_new(c); + assert(s); + + s->create_complete_callback = complete; + s->create_complete_userdata = userdata; + s->name = pa_xstrdup(name); + s->state = STREAM_CREATING; + s->direction = dir; + s->sample_spec = *ss; + if (attr) + s->buffer_attr = *attr; + else { + s->buffer_attr.maxlength = DEFAULT_MAXLENGTH; + s->buffer_attr.tlength = DEFAULT_TLENGTH; + s->buffer_attr.prebuf = DEFAULT_PREBUF; + s->buffer_attr.minreq = DEFAULT_MINREQ; + s->buffer_attr.fragsize = DEFAULT_FRAGSIZE; + } + + create_stream(s, dev); + + return s; +} + +void pa_stream_free(struct pa_stream *s) { + assert(s && s->context); + + if (s->context->pdispatch) + pa_pdispatch_unregister_reply(s->context->pdispatch, s); + + pa_xfree(s->name); + + if (s->channel_valid && s->context->state == CONTEXT_READY) { + struct pa_tagstruct *t = pa_tagstruct_new(NULL, 0); + assert(t); + + pa_tagstruct_putu32(t, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_DELETE_PLAYBACK_STREAM : + (s->direction == PA_STREAM_RECORD ? PA_COMMAND_DELETE_RECORD_STREAM : PA_COMMAND_DELETE_UPLOAD_STREAM)); + pa_tagstruct_putu32(t, s->context->ctag++); + pa_tagstruct_putu32(t, s->channel); + pa_pstream_send_tagstruct(s->context->pstream, t); + } + + if (s->channel_valid) + pa_dynarray_put((s->direction == PA_STREAM_PLAYBACK) ? s->context->playback_streams : s->context->record_streams, s->channel, NULL); + + if (s->next) + s->next->previous = s->previous; + if (s->previous) + s->previous->next = s->next; + else + s->context->first_stream = s->next; + + pa_xfree(s); +} + +void pa_stream_set_write_callback(struct pa_stream *s, void (*cb)(struct pa_stream *p, size_t length, void *userdata), void *userdata) { + s->write_callback = cb; + s->write_userdata = userdata; +} + +void pa_stream_write(struct pa_stream *s, const void *data, size_t length) { + struct pa_memchunk chunk; + assert(s && s->context && data && length && s->state == STREAM_READY); + + chunk.memblock = pa_memblock_new(length); + assert(chunk.memblock && chunk.memblock->data); + memcpy(chunk.memblock->data, data, length); + chunk.index = 0; + chunk.length = length; + + pa_pstream_send_memblock(s->context->pstream, s->channel, 0, &chunk); + pa_memblock_unref(chunk.memblock); + + /*fprintf(stderr, "Sent %u bytes\n", length);*/ + + if (length < s->requested_bytes) + s->requested_bytes -= length; + else + s->requested_bytes = 0; +} + +size_t pa_stream_writable_size(struct pa_stream *s) { + assert(s && s->state == STREAM_READY); + return s->requested_bytes; +} + +void pa_stream_set_read_callback(struct pa_stream *s, void (*cb)(struct pa_stream *p, const void*data, size_t length, void *userdata), void *userdata) { + assert(s && cb); + s->read_callback = cb; + s->read_userdata = userdata; +} + +int pa_stream_is_dead(struct pa_stream *s) { + return s->state == STREAM_DEAD; +} + +int pa_stream_is_ready(struct pa_stream*s) { + return s->state == STREAM_READY; +} + +void pa_stream_set_die_callback(struct pa_stream *s, void (*cb)(struct pa_stream *s, void *userdata), void *userdata) { + assert(s); + s->die_callback = cb; + s->die_userdata = userdata; +} + +int pa_context_is_pending(struct pa_context *c) { + assert(c); + + if (c->state != CONTEXT_READY) + return 0; + + return pa_pstream_is_pending(c->pstream) || pa_pdispatch_is_pending(c->pdispatch); +} + +struct pa_context* pa_stream_get_context(struct pa_stream *p) { + assert(p); + return p->context; +} + +static void set_dispatch_callbacks(struct pa_context *c); + +static void pdispatch_drain_callback(struct pa_pdispatch*pd, void *userdata) { + set_dispatch_callbacks(userdata); +} + +static void pstream_drain_callback(struct pa_pstream *s, void *userdata) { + set_dispatch_callbacks(userdata); +} + +static void set_dispatch_callbacks(struct pa_context *c) { + assert(c && c->state == CONTEXT_READY); + + pa_pstream_set_drain_callback(c->pstream, NULL, NULL); + pa_pdispatch_set_drain_callback(c->pdispatch, NULL, NULL); + + if (pa_pdispatch_is_pending(c->pdispatch)) { + pa_pdispatch_set_drain_callback(c->pdispatch, pdispatch_drain_callback, c); + return; + } + + if (pa_pstream_is_pending(c->pstream)) { + pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c); + return; + } + + assert(c->drain_complete_callback); + c->drain_complete_callback(c, c->drain_complete_userdata); +} + +int pa_context_drain( + struct pa_context *c, + void (*complete) (struct pa_context*c, void *userdata), + void *userdata) { + + assert(c && c->state == CONTEXT_READY); + + if (complete == NULL) { + c->drain_complete_callback = NULL; + pa_pstream_set_drain_callback(c->pstream, NULL, NULL); + pa_pdispatch_set_drain_callback(c->pdispatch, NULL, NULL); + return 0; + } + + if (!pa_context_is_pending(c)) + return -1; + + c->drain_complete_callback = complete; + c->drain_complete_userdata = userdata; + + set_dispatch_callbacks(c); + + return 0; +} + +static void stream_drain_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_stream *s = userdata; + assert(pd && s); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(s->context, command, t) < 0) { + context_dead(s->context); + return; + } + + stream_dead(s); + return; + } + + if (s->state != STREAM_READY) + return; + + if (!pa_tagstruct_eof(t)) { + s->context->error = PA_ERROR_PROTOCOL; + context_dead(s->context); + return; + } + + if (s->drain_complete_callback) { + void (*temp) (struct pa_stream*s, void *userdata) = s->drain_complete_callback; + s->drain_complete_callback = NULL; + temp(s, s->drain_complete_userdata); + } +} + + +void pa_stream_drain(struct pa_stream *s, void (*complete) (struct pa_stream*s, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(s && s->state == STREAM_READY); + + if (!complete) { + s->drain_complete_callback = NULL; + return; + } + + s->drain_complete_callback = complete; + s->drain_complete_userdata = userdata; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + + pa_tagstruct_putu32(t, PA_COMMAND_DRAIN_PLAYBACK_STREAM); + pa_tagstruct_putu32(t, tag = s->context->ctag++); + pa_tagstruct_putu32(t, s->channel); + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_drain_callback, s); +} + +void pa_context_exit(struct pa_context *c) { + struct pa_tagstruct *t; + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_EXIT); + pa_tagstruct_putu32(t, c->ctag++); + pa_pstream_send_tagstruct(c->pstream, t); +} + +static void context_stat_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + uint32_t total, count; + assert(pd && c); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(c, command, t) < 0) { + context_dead(c); + return; + } + + if (c->stat_callback) + c->stat_callback(c, (uint32_t) -1, (uint32_t) -1, c->stat_userdata); + return; + } + + if (pa_tagstruct_getu32(t, &count) < 0 || + pa_tagstruct_getu32(t, &total) < 0 || + !pa_tagstruct_eof(t)) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (c->stat_callback) + c->stat_callback(c, count, total, c->stat_userdata); +} + +void pa_context_stat(struct pa_context *c, void (*cb)(struct pa_context *c, uint32_t count, uint32_t total, void *userdata), void *userdata) { + uint32_t tag; + struct pa_tagstruct *t; + + c->stat_callback = cb; + c->stat_userdata = userdata; + + if (cb == NULL) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_STAT); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_stat_callback, c); +} + +static void stream_get_latency_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_stream *s = userdata; + uint32_t latency; + assert(pd && s); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(s->context, command, t) < 0) { + context_dead(s->context); + return; + } + + if (s->get_latency_callback) + s->get_latency_callback(s, (uint32_t) -1, s->get_latency_userdata); + return; + } + + if (pa_tagstruct_getu32(t, &latency) < 0 || + !pa_tagstruct_eof(t)) { + s->context->error = PA_ERROR_PROTOCOL; + context_dead(s->context); + return; + } + + if (s->get_latency_callback) + s->get_latency_callback(s, latency, s->get_latency_userdata); +} + +void pa_stream_get_latency(struct pa_stream *p, void (*cb)(struct pa_stream *p, uint32_t latency, void *userdata), void *userdata) { + uint32_t tag; + struct pa_tagstruct *t; + + p->get_latency_callback = cb; + p->get_latency_userdata = userdata; + + if (cb == NULL) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_PLAYBACK_LATENCY); + pa_tagstruct_putu32(t, tag = p->context->ctag++); + pa_tagstruct_putu32(t, p->channel); + pa_pstream_send_tagstruct(p->context->pstream, t); + pa_pdispatch_register_reply(p->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_get_latency_callback, p); +} + +struct pa_stream* pa_context_upload_sample(struct pa_context *c, const char *name, const struct pa_sample_spec *ss, size_t length, void (*cb) (struct pa_stream*s, int success, void *userdata), void *userdata) { + struct pa_stream *s; + struct pa_tagstruct *t; + uint32_t tag; + + s = internal_stream_new(c); + assert(s); + + s->create_complete_callback = cb; + s->create_complete_userdata = userdata; + s->name = pa_xstrdup(name); + s->state = STREAM_CREATING; + s->direction = PA_STREAM_UPLOAD; + s->sample_spec = *ss; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_CREATE_UPLOAD_STREAM); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_puts(t, name); + pa_tagstruct_put_sample_spec(t, ss); + pa_tagstruct_putu32(t, length); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, create_stream_callback, s); + + return s; +} + +static void stream_finish_sample_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_stream *s = userdata; + assert(pd && s); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(s->context, command, t) < 0) { + context_dead(s->context); + return; + } + + if (s->finish_sample_callback) + s->finish_sample_callback(s, 0, s->finish_sample_userdata); + return; + } + + if (!pa_tagstruct_eof(t)) { + s->context->error = PA_ERROR_PROTOCOL; + context_dead(s->context); + return; + } + + if (s->finish_sample_callback) + s->finish_sample_callback(s, 1, s->finish_sample_userdata); +} + +void pa_stream_finish_sample(struct pa_stream *p, void (*cb)(struct pa_stream*s, int success, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(p); + + p->finish_sample_callback = cb; + p->finish_sample_userdata = userdata; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_FINISH_UPLOAD_STREAM); + pa_tagstruct_putu32(t, tag = p->context->ctag++); + pa_tagstruct_putu32(t, p->channel); + pa_pstream_send_tagstruct(p->context->pstream, t); + pa_pdispatch_register_reply(p->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_finish_sample_callback, p); +} + +static void context_play_sample_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + assert(pd && c); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(c, command, t) < 0) { + context_dead(c); + return; + } + + if (c->play_sample_callback) + c->play_sample_callback(c, 0, c->play_sample_userdata); + return; + } + + if (!pa_tagstruct_eof(t)) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (c->play_sample_callback) + c->play_sample_callback(c, 1, c->play_sample_userdata); +} + +void pa_context_play_sample(struct pa_context *c, const char *name, const char *dev, uint32_t volume, void (*cb)(struct pa_context *c, int success, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c && name && *name && (!dev || *dev)); + + c->play_sample_callback = cb; + c->play_sample_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_PLAY_SAMPLE); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_putu32(t, (uint32_t) -1); + pa_tagstruct_puts(t, dev ? dev : ""); + pa_tagstruct_putu32(t, volume); + pa_tagstruct_puts(t, name); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_play_sample_callback, c); +} + +static void context_remove_sample_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + assert(pd && c); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(c, command, t) < 0) { + context_dead(c); + return; + } + + if (c->remove_sample_callback) + c->remove_sample_callback(c, 0, c->remove_sample_userdata); + return; + } + + if (!pa_tagstruct_eof(t)) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (c->remove_sample_callback) + c->remove_sample_callback(c, 1, c->remove_sample_userdata); +} + +void pa_context_remove_sample(struct pa_context *c, const char *name, void (*cb)(struct pa_context *c, int success, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c && name); + + c->remove_sample_callback = cb; + c->remove_sample_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_REMOVE_SAMPLE); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_puts(t, name); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_remove_sample_callback, c); +} + +static void context_get_server_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + struct pa_server_info i; + assert(pd && c); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(c, command, t) < 0) { + context_dead(c); + return; + } + + if (c->get_server_info_callback) + c->get_server_info_callback(c, NULL, c->get_server_info_userdata); + return; + } + + if (pa_tagstruct_gets(t, &i.server_name) < 0 || + pa_tagstruct_gets(t, &i.server_version) < 0 || + pa_tagstruct_gets(t, &i.user_name) < 0 || + pa_tagstruct_gets(t, &i.host_name) < 0 || + pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 || + !pa_tagstruct_eof(t)) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (c->get_server_info_callback) + c->get_server_info_callback(c, &i, c->get_server_info_userdata); +} + +void pa_context_get_server_info(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_server_info*i, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_server_info_callback = cb; + c->get_server_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_SERVER_INFO); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_server_info_callback, c); +} + +static void context_get_sink_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + assert(pd && c); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(c, command, t) < 0) { + context_dead(c); + return; + } + + if (c->get_sink_info_callback) + c->get_sink_info_callback(c, NULL, 0, c->get_sink_info_userdata); + return; + } + + while (!pa_tagstruct_eof(t)) { + struct pa_sink_info i; + + if (pa_tagstruct_getu32(t, &i.index) < 0 || + pa_tagstruct_gets(t, &i.name) < 0 || + pa_tagstruct_gets(t, &i.description) < 0 || + pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 || + pa_tagstruct_getu32(t, &i.owner_module) < 0 || + pa_tagstruct_getu32(t, &i.volume) < 0 || + pa_tagstruct_getu32(t, &i.monitor_source) < 0 || + pa_tagstruct_gets(t, &i.monitor_source_name) < 0 || + pa_tagstruct_getu32(t, &i.latency) < 0) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (c->get_sink_info_callback) + c->get_sink_info_callback(c, &i, 0, c->get_sink_info_userdata); + } + + if (c->get_sink_info_callback) + c->get_sink_info_callback(c, NULL, 1, c->get_sink_info_userdata); +} + +void pa_context_get_sink_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_sink_info *i, int is_last, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_sink_info_callback = cb; + c->get_sink_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_SINK_INFO_LIST); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sink_info_callback, c); +} + +static void context_get_source_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + assert(pd && c); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(c, command, t) < 0) { + context_dead(c); + return; + } + + if (c->get_source_info_callback) + c->get_source_info_callback(c, NULL, 0, c->get_source_info_userdata); + return; + } + + while (!pa_tagstruct_eof(t)) { + struct pa_source_info i; + + if (pa_tagstruct_getu32(t, &i.index) < 0 || + pa_tagstruct_gets(t, &i.name) < 0 || + pa_tagstruct_gets(t, &i.description) < 0 || + pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 || + pa_tagstruct_getu32(t, &i.owner_module) < 0 || + pa_tagstruct_getu32(t, &i.monitor_of_sink) < 0 || + pa_tagstruct_gets(t, &i.monitor_of_sink_name) < 0) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (c->get_source_info_callback) + c->get_source_info_callback(c, &i, 0, c->get_source_info_userdata); + } + + if (c->get_source_info_callback) + c->get_source_info_callback(c, NULL, 1, c->get_source_info_userdata); +} + +void pa_context_get_source_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_source_info *i, int is_last, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_source_info_callback = cb; + c->get_source_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_SOURCE_INFO_LIST); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_source_info_callback, c); +} + +void pa_context_subscribe(struct pa_context *c, enum pa_subscription_mask m, void (*cb)(struct pa_context *c, enum pa_subscription_event_type t, uint32_t index, void *userdata), void *userdata) { + struct pa_tagstruct *t; + assert(c); + + c->subscribe_callback = cb; + c->subscribe_userdata = userdata; + c->subscribe_mask = m; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE); + pa_tagstruct_putu32(t, c->ctag++); + pa_tagstruct_putu32(t, cb ? m : 0); + pa_pstream_send_tagstruct(c->pstream, t); +} + +static void command_subscribe_event(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + enum pa_subscription_event_type e; + uint32_t index; + assert(pd && command == PA_COMMAND_SUBSCRIBE_EVENT && t && c); + + if (pa_tagstruct_getu32(t, &e) < 0 || + pa_tagstruct_getu32(t, &index) < 0 || + !pa_tagstruct_eof(t)) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (pa_subscription_match_flags(c->subscribe_mask, e) && c->subscribe_callback) + c->subscribe_callback(c, e, index, c->subscribe_userdata); +} + +void pa_context_get_sink_info_by_index(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_sink_info *i, int is_last, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_sink_info_callback = cb; + c->get_sink_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_SINK_INFO); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_putu32(t, index); + pa_tagstruct_puts(t, ""); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sink_info_callback, c); +} + +void pa_context_get_source_info_by_index(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_source_info *i, int is_last, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_source_info_callback = cb; + c->get_source_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_SOURCE_INFO); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_putu32(t, index); + pa_tagstruct_puts(t, ""); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_source_info_callback, c); +} + +static void context_get_client_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + assert(pd && c); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(c, command, t) < 0) { + context_dead(c); + return; + } + + if (c->get_client_info_callback) + c->get_client_info_callback(c, NULL, 0, c->get_client_info_userdata); + return; + } + + while (!pa_tagstruct_eof(t)) { + struct pa_client_info i; + + if (pa_tagstruct_getu32(t, &i.index) < 0 || + pa_tagstruct_gets(t, &i.name) < 0 || + pa_tagstruct_gets(t, &i.protocol_name) < 0 || + pa_tagstruct_getu32(t, &i.owner_module) < 0) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (c->get_client_info_callback) + c->get_client_info_callback(c, &i, 0, c->get_client_info_userdata); + } + + if (c->get_client_info_callback) + c->get_client_info_callback(c, NULL, 1, c->get_client_info_userdata); +} + + +void pa_context_get_client_info(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_client_info*i, int is_last, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_client_info_callback = cb; + c->get_client_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_CLIENT_INFO); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_putu32(t, index); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_client_info_callback, c); +} + +void pa_context_get_client_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_client_info*i, int is_last, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_client_info_callback = cb; + c->get_client_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_CLIENT_INFO_LIST); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_client_info_callback, c); +} + +static void context_get_module_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) { + struct pa_context *c = userdata; + assert(pd && c); + + if (command != PA_COMMAND_REPLY) { + if (handle_error(c, command, t) < 0) { + context_dead(c); + return; + } + + if (c->get_module_info_callback) + c->get_module_info_callback(c, NULL, 0, c->get_module_info_userdata); + return; + } + + while (!pa_tagstruct_eof(t)) { + struct pa_module_info i; + + if (pa_tagstruct_getu32(t, &i.index) < 0 || + pa_tagstruct_gets(t, &i.name) < 0 || + pa_tagstruct_gets(t, &i.argument) < 0 || + pa_tagstruct_getu32(t, &i.n_used) < 0 || + pa_tagstruct_getu32(t, &i.auto_unload) < 0) { + c->error = PA_ERROR_PROTOCOL; + context_dead(c); + return; + } + + if (c->get_module_info_callback) + c->get_module_info_callback(c, &i, 0, c->get_module_info_userdata); + } + + if (c->get_module_info_callback) + c->get_module_info_callback(c, NULL, 1, c->get_module_info_userdata); +} + +void pa_context_get_module_info(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_module_info*i, int is_last, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_module_info_callback = cb; + c->get_module_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_MODULE_INFO); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_tagstruct_putu32(t, index); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_module_info_callback, c); +} + +void pa_context_get_module_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_module_info*i, int is_last, void *userdata), void *userdata) { + struct pa_tagstruct *t; + uint32_t tag; + assert(c); + + c->get_module_info_callback = cb; + c->get_module_info_userdata = userdata; + + if (!cb) + return; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_GET_MODULE_INFO_LIST); + pa_tagstruct_putu32(t, tag = c->ctag++); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_module_info_callback, c); +} |