[4490] | 1 | //driver_jack.c: |
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| 2 | |
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| 3 | /* |
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[4708] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009-2011 |
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[4490] | 5 | * |
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| 6 | * This file is part of roard a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * RoarAudio is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | */ |
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| 25 | |
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| 26 | #include "roard.h" |
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| 27 | |
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[4491] | 28 | #ifdef ROAR_HAVE_LIBJACK |
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[4490] | 29 | int driver_jack_open_vio (struct roar_vio_calls * inst, |
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| 30 | char * device, |
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| 31 | struct roar_audio_info * info, |
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| 32 | int fh, |
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| 33 | struct roar_stream_server * sstream) { |
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[4492] | 34 | struct driver_jack * self; |
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[4490] | 35 | |
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| 36 | // we are not FH Safe, return error if fh != -1: |
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| 37 | if ( fh != -1 ) |
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| 38 | return -1; |
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| 39 | |
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[4492] | 40 | // set up VIO: |
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| 41 | memset(inst, 0, sizeof(struct roar_vio_calls)); |
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| 42 | |
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| 43 | inst->read = driver_jack_read; |
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| 44 | inst->write = driver_jack_write; |
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| 45 | inst->lseek = NULL; // no seeking on this device |
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| 46 | inst->nonblock = driver_jack_nonblock; |
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| 47 | inst->sync = driver_jack_sync; |
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| 48 | inst->ctl = driver_jack_ctl; |
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| 49 | inst->close = driver_jack_close; |
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| 50 | |
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| 51 | // set up internal struct: |
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| 52 | if ( (self = roar_mm_malloc(sizeof(struct driver_jack))) == NULL ) |
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| 53 | return -1; |
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| 54 | |
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| 55 | memset(self, 0, sizeof(struct driver_jack)); |
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| 56 | |
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| 57 | inst->inst = self; |
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| 58 | |
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[4493] | 59 | if ( (self->client = jack_client_new("roard")) == NULL ) { |
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| 60 | roar_mm_free(self); |
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| 61 | return -1; |
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| 62 | } |
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| 63 | |
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[4492] | 64 | // return -1 on error or 0 on no error. |
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[4493] | 65 | return 0; |
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[4492] | 66 | } |
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| 67 | |
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| 68 | ssize_t driver_jack_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 69 | struct driver_jack * self = vio->inst; |
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| 70 | // read up to count bytes into buf. |
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| 71 | // return the number of bits read. |
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| 72 | return -1; |
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| 73 | } |
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| 74 | |
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| 75 | ssize_t driver_jack_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 76 | struct driver_jack * self = vio->inst; |
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| 77 | // write up to count bytes from buf. |
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| 78 | // return the number of written bytes. |
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| 79 | return -1; |
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| 80 | } |
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| 81 | |
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| 82 | int driver_jack_nonblock(struct roar_vio_calls * vio, int state) { |
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| 83 | struct driver_jack * self = vio->inst; |
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| 84 | // control if read and write calls should block untill all data is read or written. |
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| 85 | // state could be: |
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| 86 | // ROAR_SOCKET_BLOCK - Block untill the data is read or written |
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| 87 | // ROAR_SOCKET_NONBLOCK - Return as soon as possible |
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[4490] | 88 | return -1; |
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| 89 | } |
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[4492] | 90 | |
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| 91 | int driver_jack_sync (struct roar_vio_calls * vio) { |
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| 92 | struct driver_jack * self = vio->inst; |
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| 93 | // init to sync data to device. |
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| 94 | // sync does not need to be complet when this function returns. |
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| 95 | return 0; |
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| 96 | } |
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| 97 | |
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| 98 | int driver_jack_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
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| 99 | struct driver_jack * self = vio->inst; |
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| 100 | // function for a lot control features. |
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| 101 | |
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| 102 | switch (cmd) { |
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| 103 | case ROAR_VIO_CTL_GET_NAME: |
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| 104 | if ( data == NULL ) |
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| 105 | return -1; |
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| 106 | |
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| 107 | *(char**)data = "driver_jack"; |
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| 108 | return 0; |
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| 109 | break; |
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| 110 | case ROAR_VIO_CTL_GET_FH: |
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| 111 | case ROAR_VIO_CTL_GET_READ_FH: |
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| 112 | case ROAR_VIO_CTL_GET_WRITE_FH: |
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| 113 | case ROAR_VIO_CTL_GET_SELECT_FH: |
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| 114 | case ROAR_VIO_CTL_GET_SELECT_READ_FH: |
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| 115 | case ROAR_VIO_CTL_GET_SELECT_WRITE_FH: |
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| 116 | /* Return FH if possible: |
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| 117 | *(int*)data = FH...; |
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| 118 | */ |
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| 119 | return -1; |
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| 120 | break; |
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| 121 | case ROAR_VIO_CTL_SET_NOSYNC: |
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| 122 | vio->sync = NULL; |
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| 123 | return 0; |
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| 124 | break; |
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| 125 | case ROAR_VIO_CTL_GET_AUINFO: |
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| 126 | case ROAR_VIO_CTL_SET_AUINFO: |
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| 127 | // get or set audio info, data is a struct roar_audio_info*. |
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| 128 | return -1; |
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| 129 | break; |
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| 130 | case ROAR_VIO_CTL_GET_DBLKSIZE: |
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| 131 | case ROAR_VIO_CTL_SET_DBLKSIZE: |
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| 132 | // get or set block size used, data is uint_least32_t*, number of bytes. |
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| 133 | return -1; |
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| 134 | break; |
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| 135 | case ROAR_VIO_CTL_GET_DBLOCKS: |
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| 136 | case ROAR_VIO_CTL_SET_DBLOCKS: |
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| 137 | // get or set number of blocks used, data is uint_least32_t*. |
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| 138 | return -1; |
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| 139 | break; |
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| 140 | case ROAR_VIO_CTL_SET_SSTREAM: |
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| 141 | // set server stream object for this stream, data is struct roar_stream_server* |
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| 142 | return -1; |
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| 143 | break; |
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| 144 | case ROAR_VIO_CTL_SET_SSTREAMID: |
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| 145 | // set stream ID for this stream, data is int* |
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| 146 | return -1; |
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| 147 | break; |
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| 148 | case ROAR_VIO_CTL_SET_VOLUME: |
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| 149 | // set volume for this device, data is struct roar_mixer_settings* |
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| 150 | return -1; |
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| 151 | break; |
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| 152 | case ROAR_VIO_CTL_GET_DELAY: |
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| 153 | // get delay of this stream, data is uint_least32_t*, in bytes |
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| 154 | // there is more about delay. please ask. |
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| 155 | return -1; |
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| 156 | break; |
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| 157 | default: |
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| 158 | return -1; |
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| 159 | break; |
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| 160 | } |
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| 161 | } |
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| 162 | |
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| 163 | int driver_jack_close (struct roar_vio_calls * vio) { |
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| 164 | struct driver_jack * self = vio->inst; |
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| 165 | // close and free everything in here... |
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| 166 | |
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[4493] | 167 | jack_client_close(self->client); |
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| 168 | |
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[4492] | 169 | roar_mm_free(self); |
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| 170 | |
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| 171 | return 0; |
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| 172 | } |
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| 173 | |
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[4490] | 174 | #endif |
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| 175 | |
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| 176 | //ll |
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