void MidiAlsaSeq::subscribeReadablePort( MidiPort * _port, const QString & _dest, bool _subscribe ) { if( !m_portIDs.contains( _port ) || m_portIDs[_port][0] < 0 ) { return; } m_seqMutex.lock(); snd_seq_addr_t sender; if( snd_seq_parse_address( m_seqHandle, &sender, _dest.section( ' ', 0, 0 ).toLatin1().constData() ) ) { fprintf( stderr, "error parsing sender-address!\n" ); m_seqMutex.unlock(); return; } snd_seq_port_info_t * port_info; snd_seq_port_info_malloc( &port_info ); snd_seq_get_port_info( m_seqHandle, m_portIDs[_port][0], port_info ); const snd_seq_addr_t * dest = snd_seq_port_info_get_addr( port_info ); snd_seq_port_subscribe_t * subs; snd_seq_port_subscribe_malloc( &subs ); snd_seq_port_subscribe_set_sender( subs, &sender ); snd_seq_port_subscribe_set_dest( subs, dest ); if( _subscribe ) { snd_seq_subscribe_port( m_seqHandle, subs ); } else { snd_seq_unsubscribe_port( m_seqHandle, subs ); } snd_seq_port_subscribe_free( subs ); snd_seq_port_info_free( port_info ); m_seqMutex.unlock(); }
// Disconnection primitive. bool qjackctlAlsaConnect::disconnectPorts ( qjackctlPortItem *pOPort, qjackctlPortItem *pIPort ) { #ifdef CONFIG_ALSA_SEQ qjackctlMainForm *pMainForm = qjackctlMainForm::getInstance(); if (pMainForm == NULL) return false; snd_seq_t *pAlsaSeq = pMainForm->alsaSeq(); if (pAlsaSeq == NULL) return false; qjackctlAlsaPort *pOAlsa = static_cast<qjackctlAlsaPort *> (pOPort); qjackctlAlsaPort *pIAlsa = static_cast<qjackctlAlsaPort *> (pIPort); snd_seq_port_subscribe_t *pAlsaSubs; snd_seq_addr_t seq_addr; snd_seq_port_subscribe_alloca(&pAlsaSubs); seq_addr.client = pOAlsa->alsaClient(); seq_addr.port = pOAlsa->alsaPort(); snd_seq_port_subscribe_set_sender(pAlsaSubs, &seq_addr); seq_addr.client = pIAlsa->alsaClient(); seq_addr.port = pIAlsa->alsaPort(); snd_seq_port_subscribe_set_dest(pAlsaSubs, &seq_addr); return (snd_seq_unsubscribe_port(pAlsaSeq, pAlsaSubs) >= 0); #else return false; #endif // CONFIG_ALSA_SEQ }
int main(int argc, char **argv) { int c; snd_seq_t *seq; int queue = 0, convert_time = 0, convert_real = 0, exclusive = 0; int command = SUBSCRIBE; int list_perm = 0; int client; int list_subs = 0; snd_seq_port_subscribe_t *subs; snd_seq_addr_t sender, dest; #ifdef ENABLE_NLS setlocale(LC_ALL, ""); textdomain(PACKAGE); #endif while ((c = getopt_long(argc, argv, "dior:t:elx", long_option, NULL)) != -1) { switch (c) { case 'd': command = UNSUBSCRIBE; break; case 'i': command = LIST; list_perm |= LIST_INPUT; break; case 'o': command = LIST; list_perm |= LIST_OUTPUT; break; case 'e': exclusive = 1; break; case 'r': queue = atoi(optarg); convert_time = 1; convert_real = 1; break; case 't': queue = atoi(optarg); convert_time = 1; convert_real = 0; break; case 'l': list_subs = 1; break; case 'x': command = REMOVE_ALL; break; default: usage(); exit(1); } } if (snd_seq_open(&seq, "default", SND_SEQ_OPEN_DUPLEX, 0) < 0) { fprintf(stderr, _("can't open sequencer\n")); return 1; } snd_lib_error_set_handler(error_handler); switch (command) { case LIST: do_search_port(seq, list_perm, list_subs ? print_port_and_subs : print_port); snd_seq_close(seq); return 0; case REMOVE_ALL: remove_all_connections(seq); snd_seq_close(seq); return 0; } /* connection or disconnection */ if (optind + 2 > argc) { snd_seq_close(seq); usage(); exit(1); } if ((client = snd_seq_client_id(seq)) < 0) { snd_seq_close(seq); fprintf(stderr, _("can't get client id\n")); return 1; } /* set client info */ if (snd_seq_set_client_name(seq, "ALSA Connector") < 0) { snd_seq_close(seq); fprintf(stderr, _("can't set client info\n")); return 1; } /* set subscription */ if (snd_seq_parse_address(seq, &sender, argv[optind]) < 0) { snd_seq_close(seq); fprintf(stderr, _("invalid sender address %s\n"), argv[optind]); return 1; } if (snd_seq_parse_address(seq, &dest, argv[optind + 1]) < 0) { snd_seq_close(seq); fprintf(stderr, _("invalid destination address %s\n"), argv[optind + 1]); return 1; } snd_seq_port_subscribe_alloca(&subs); snd_seq_port_subscribe_set_sender(subs, &sender); snd_seq_port_subscribe_set_dest(subs, &dest); snd_seq_port_subscribe_set_queue(subs, queue); snd_seq_port_subscribe_set_exclusive(subs, exclusive); snd_seq_port_subscribe_set_time_update(subs, convert_time); snd_seq_port_subscribe_set_time_real(subs, convert_real); if (command == UNSUBSCRIBE) { if (snd_seq_get_port_subscription(seq, subs) < 0) { snd_seq_close(seq); fprintf(stderr, _("No subscription is found\n")); return 1; } if (snd_seq_unsubscribe_port(seq, subs) < 0) { snd_seq_close(seq); fprintf(stderr, _("Disconnection failed (%s)\n"), snd_strerror(errno)); return 1; } } else { if (snd_seq_get_port_subscription(seq, subs) == 0) { snd_seq_close(seq); fprintf(stderr, _("Connection is already subscribed\n")); return 1; } if (snd_seq_subscribe_port(seq, subs) < 0) { snd_seq_close(seq); fprintf(stderr, _("Connection failed (%s)\n"), snd_strerror(errno)); return 1; } } snd_seq_close(seq); return 0; }