+++ /dev/null
-/* $Id$ */
-
-/***
- This file is part of polypaudio.
-
- polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as
- published by the Free Software Foundation; either version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with polypaudio; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- USA.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-
-#include "pdispatch.h"
-#include "native-common.h"
-#include "xmalloc.h"
-#include "llist.h"
-#include "log.h"
-#include "util.h"
-
-/*#define DEBUG_OPCODES */
-
-#ifdef DEBUG_OPCODES
-
-static const char *command_names[PA_COMMAND_MAX] = {
- [PA_COMMAND_ERROR] = "ERROR",
- [PA_COMMAND_TIMEOUT] = "TIMEOUT",
- [PA_COMMAND_REPLY] = "REPLY",
- [PA_COMMAND_CREATE_PLAYBACK_STREAM] = "CREATE_PLAYBACK_STREAM",
- [PA_COMMAND_DELETE_PLAYBACK_STREAM] = "DELETE_PLAYBACK_STREAM",
- [PA_COMMAND_CREATE_RECORD_STREAM] = "CREATE_RECORD_STREAM",
- [PA_COMMAND_DELETE_RECORD_STREAM] = "DELETE_RECORD_STREAM",
- [PA_COMMAND_AUTH] = "AUTH",
- [PA_COMMAND_REQUEST] = "REQUEST",
- [PA_COMMAND_EXIT] = "EXIT",
- [PA_COMMAND_SET_CLIENT_NAME] = "SET_CLIENT_NAME",
- [PA_COMMAND_LOOKUP_SINK] = "LOOKUP_SINK",
- [PA_COMMAND_LOOKUP_SOURCE] = "LOOKUP_SOURCE",
- [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = "DRAIN_PLAYBACK_STREAM",
- [PA_COMMAND_PLAYBACK_STREAM_KILLED] = "PLAYBACK_STREAM_KILLED",
- [PA_COMMAND_RECORD_STREAM_KILLED] = "RECORD_STREAM_KILLED",
- [PA_COMMAND_STAT] = "STAT",
- [PA_COMMAND_GET_PLAYBACK_LATENCY] = "PLAYBACK_LATENCY",
- [PA_COMMAND_CREATE_UPLOAD_STREAM] = "CREATE_UPLOAD_STREAM",
- [PA_COMMAND_DELETE_UPLOAD_STREAM] = "DELETE_UPLOAD_STREAM",
- [PA_COMMAND_FINISH_UPLOAD_STREAM] = "FINISH_UPLOAD_STREAM",
- [PA_COMMAND_PLAY_SAMPLE] = "PLAY_SAMPLE",
- [PA_COMMAND_REMOVE_SAMPLE] = "REMOVE_SAMPLE",
- [PA_COMMAND_GET_SERVER_INFO] = "GET_SERVER_INFO",
- [PA_COMMAND_GET_SINK_INFO] = "GET_SINK_INFO",
- [PA_COMMAND_GET_SINK_INFO_LIST] = "GET_SINK_INFO_LIST",
- [PA_COMMAND_GET_SOURCE_INFO] = "GET_SOURCE_INFO",
- [PA_COMMAND_GET_SOURCE_INFO_LIST] = "GET_SOURCE_INFO_LIST",
- [PA_COMMAND_GET_MODULE_INFO] = "GET_MODULE_INFO",
- [PA_COMMAND_GET_MODULE_INFO_LIST] = "GET_MODULE_INFO_LIST",
- [PA_COMMAND_GET_CLIENT_INFO] = "GET_CLIENT_INFO",
- [PA_COMMAND_GET_CLIENT_INFO_LIST] = "GET_CLIENT_INFO_LIST",
- [PA_COMMAND_GET_SAMPLE_INFO] = "GET_SAMPLE_INFO",
- [PA_COMMAND_GET_SAMPLE_INFO_LIST] = "GET_SAMPLE_INFO_LIST",
- [PA_COMMAND_GET_SINK_INPUT_INFO] = "GET_SINK_INPUT_INFO",
- [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = "GET_SINK_INPUT_INFO_LIST",
- [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = "GET_SOURCE_OUTPUT_INFO",
- [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = "GET_SOURCE_OUTPUT_INFO_LIST",
- [PA_COMMAND_SUBSCRIBE] = "SUBSCRIBE",
- [PA_COMMAND_SUBSCRIBE_EVENT] = "SUBSCRIBE_EVENT",
- [PA_COMMAND_SET_SINK_VOLUME] = "SET_SINK_VOLUME",
- [PA_COMMAND_SET_SINK_INPUT_VOLUME] = "SET_SINK_INPUT_VOLUME",
- [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = "TRIGGER_PLAYBACK_STREAM",
- [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = "FLUSH_PLAYBACK_STREAM",
- [PA_COMMAND_CORK_PLAYBACK_STREAM] = "CORK_PLAYBACK_STREAM",
- [PA_COMMAND_GET_AUTOLOAD_INFO] = "GET_AUTOLOAD_INFO",
- [PA_COMMAND_GET_AUTOLOAD_INFO_LIST] = "GET_AUTOLOAD_INFO_LIST",
-};
-
-#endif
-
-struct reply_info {
- pa_pdispatch *pdispatch;
- PA_LLIST_FIELDS(struct reply_info);
- pa_pdispatch_callback callback;
- void *userdata;
- uint32_t tag;
- pa_time_event *time_event;
-};
-
-struct pa_pdispatch {
- int ref;
- pa_mainloop_api *mainloop;
- const pa_pdispatch_callback *callback_table;
- unsigned n_commands;
- PA_LLIST_HEAD(struct reply_info, replies);
- pa_pdispatch_drain_callback drain_callback;
- void *drain_userdata;
-};
-
-static void reply_info_free(struct reply_info *r) {
- assert(r && r->pdispatch && r->pdispatch->mainloop);
-
- if (r->time_event)
- r->pdispatch->mainloop->time_free(r->time_event);
-
- PA_LLIST_REMOVE(struct reply_info, r->pdispatch->replies, r);
-
- pa_xfree(r);
-}
-
-pa_pdispatch* pa_pdispatch_new(pa_mainloop_api *mainloop, const pa_pdispatch_callback*table, unsigned entries) {
- pa_pdispatch *pd;
- assert(mainloop);
-
- assert((entries && table) || (!entries && !table));
-
- pd = pa_xmalloc(sizeof(pa_pdispatch));
- pd->ref = 1;
- pd->mainloop = mainloop;
- pd->callback_table = table;
- pd->n_commands = entries;
- PA_LLIST_HEAD_INIT(pa_reply_info, pd->replies);
- pd->drain_callback = NULL;
- pd->drain_userdata = NULL;
-
- return pd;
-}
-
-static void pdispatch_free(pa_pdispatch *pd) {
- assert(pd);
-
- while (pd->replies)
- reply_info_free(pd->replies);
-
- pa_xfree(pd);
-}
-
-static void run_action(pa_pdispatch *pd, struct reply_info *r, uint32_t command, pa_tagstruct *ts) {
- pa_pdispatch_callback callback;
- void *userdata;
- uint32_t tag;
- assert(r);
-
- pa_pdispatch_ref(pd);
-
- callback = r->callback;
- userdata = r->userdata;
- tag = r->tag;
-
- reply_info_free(r);
-
- callback(pd, command, tag, ts, userdata);
-
- if (pd->drain_callback && !pa_pdispatch_is_pending(pd))
- pd->drain_callback(pd, pd->drain_userdata);
-
- pa_pdispatch_unref(pd);
-}
-
-int pa_pdispatch_run(pa_pdispatch *pd, pa_packet*packet, void *userdata) {
- uint32_t tag, command;
- pa_tagstruct *ts = NULL;
- int ret = -1;
- assert(pd && packet && packet->data);
-
- pa_pdispatch_ref(pd);
-
- if (packet->length <= 8)
- goto finish;
-
- ts = pa_tagstruct_new(packet->data, packet->length);
- assert(ts);
-
- if (pa_tagstruct_getu32(ts, &command) < 0 ||
- pa_tagstruct_getu32(ts, &tag) < 0)
- goto finish;
-
-#ifdef DEBUG_OPCODES
-{
- char t[256];
- char const *p;
- if (!(p = command_names[command]))
- snprintf((char*) (p = t), sizeof(t), "%u", command);
-
- pa_log(__FILE__": Recieved opcode <%s>\n", p);
-}
-#endif
-
- if (command == PA_COMMAND_ERROR || command == PA_COMMAND_REPLY) {
- struct reply_info *r;
-
- for (r = pd->replies; r; r = r->next)
- if (r->tag == tag)
- break;
-
- if (r)
- run_action(pd, r, command, ts);
-
- } else if (pd->callback_table && (command < pd->n_commands) && pd->callback_table[command]) {
- const pa_pdispatch_callback *c = pd->callback_table+command;
-
- (*c)(pd, command, tag, ts, userdata);
- } else {
- pa_log(__FILE__": Recieved unsupported command %u\n", command);
- goto finish;
- }
-
- ret = 0;
-
-finish:
- if (ts)
- pa_tagstruct_free(ts);
-
- pa_pdispatch_unref(pd);
-
- return ret;
-}
-
-static void timeout_callback(pa_mainloop_api*m, pa_time_event*e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
- struct reply_info*r = userdata;
- assert(r && r->time_event == e && r->pdispatch && r->pdispatch->mainloop == m && r->callback);
-
- run_action(r->pdispatch, r, PA_COMMAND_TIMEOUT, NULL);
-}
-
-void pa_pdispatch_register_reply(pa_pdispatch *pd, uint32_t tag, int timeout, pa_pdispatch_callback cb, void *userdata) {
- struct reply_info *r;
- struct timeval tv;
- assert(pd && pd->ref >= 1 && cb);
-
- r = pa_xmalloc(sizeof(struct reply_info));
- r->pdispatch = pd;
- r->callback = cb;
- r->userdata = userdata;
- r->tag = tag;
-
- pa_gettimeofday(&tv);
- tv.tv_sec += timeout;
-
- r->time_event = pd->mainloop->time_new(pd->mainloop, &tv, timeout_callback, r);
- assert(r->time_event);
-
- PA_LLIST_PREPEND(struct reply_info, pd->replies, r);
-}
-
-int pa_pdispatch_is_pending(pa_pdispatch *pd) {
- assert(pd);
-
- return !!pd->replies;
-}
-
-void pa_pdispatch_set_drain_callback(pa_pdispatch *pd, void (*cb)(pa_pdispatch *pd, void *userdata), void *userdata) {
- assert(pd);
- assert(!cb || pa_pdispatch_is_pending(pd));
-
- pd->drain_callback = cb;
- pd->drain_userdata = userdata;
-}
-
-void pa_pdispatch_unregister_reply(pa_pdispatch *pd, void *userdata) {
- struct reply_info *r, *n;
- assert(pd);
-
- for (r = pd->replies; r; r = n) {
- n = r->next;
-
- if (r->userdata == userdata)
- reply_info_free(r);
- }
-}
-
-void pa_pdispatch_unref(pa_pdispatch *pd) {
- assert(pd && pd->ref >= 1);
-
- if (!(--(pd->ref)))
- pdispatch_free(pd);
-}
-
-pa_pdispatch* pa_pdispatch_ref(pa_pdispatch *pd) {
- assert(pd && pd->ref >= 1);
- pd->ref++;
- return pd;
-}