[0] | 1 | //clients.c: |
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| 2 | |
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[668] | 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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| 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, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | */ |
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| 24 | |
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[0] | 25 | #include "roard.h" |
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| 26 | |
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| 27 | int clients_init (void) { |
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| 28 | int i; |
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| 29 | |
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| 30 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) |
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| 31 | g_clients[i] = NULL; |
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| 32 | |
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| 33 | return 0; |
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| 34 | } |
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| 35 | |
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| 36 | int clients_free (void) { |
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| 37 | int i; |
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| 38 | |
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| 39 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) |
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| 40 | if ( g_clients[i] ) |
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| 41 | clients_delete(i); |
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| 42 | |
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| 43 | return 0; |
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| 44 | } |
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| 45 | |
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| 46 | int clients_new (void) { |
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| 47 | int i; |
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| 48 | int s; |
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| 49 | struct roar_client * n; |
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| 50 | |
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| 51 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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| 52 | if ( g_clients[i] == NULL ) { |
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| 53 | n = malloc(sizeof(struct roar_client)); |
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| 54 | if ( n != NULL ) { |
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| 55 | n->pid = -1; |
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[437] | 56 | n->uid = -1; |
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| 57 | n->gid = -1; |
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[0] | 58 | n->fh = -1; |
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| 59 | |
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| 60 | *n->name = 0; |
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| 61 | *n->host = 0; |
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| 62 | |
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[346] | 63 | n->acl = NULL; |
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| 64 | |
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[0] | 65 | n->execed = -1; |
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| 66 | for (s = 0; s < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; s++) |
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| 67 | n->streams[s] = -1; |
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| 68 | |
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| 69 | g_clients[i] = n; |
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| 70 | |
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| 71 | ROAR_DBG("clients_new(void) = %i", i); |
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| 72 | return i; |
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| 73 | } else { |
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| 74 | ROAR_ERR("clients_new(void): Can not alloc memory for new client: %s", strerror(errno)); |
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| 75 | ROAR_ERR("clients_new(void) = -1"); |
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| 76 | return -1; |
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| 77 | } |
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| 78 | } |
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| 79 | } |
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| 80 | |
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| 81 | return -1; |
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| 82 | } |
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| 83 | |
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| 84 | int clients_delete (int id) { |
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| 85 | int i; |
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| 86 | |
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| 87 | if ( g_clients[id] == NULL ) |
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| 88 | return -1; |
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| 89 | |
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| 90 | if (g_clients[id]->execed != -1) { |
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| 91 | // return streams_delete(g_clients[id]->execed); |
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| 92 | g_clients[id]->execed = -1; |
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| 93 | } |
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| 94 | |
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| 95 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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| 96 | streams_delete(g_clients[id]->streams[i]); |
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| 97 | } |
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| 98 | |
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| 99 | if ( g_clients[id]->fh != -1 ) |
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| 100 | close(g_clients[id]->fh); |
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| 101 | |
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| 102 | free(g_clients[id]); |
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| 103 | g_clients[id] = NULL; |
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| 104 | |
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| 105 | ROAR_DBG("clients_delete(id=%i) = 0", id); |
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| 106 | return 0; |
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| 107 | } |
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| 108 | |
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| 109 | int clients_get (int id, struct roar_client ** client) { |
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| 110 | *client = g_clients[id]; |
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| 111 | |
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| 112 | if ( *client == NULL ) |
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| 113 | return -1; |
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| 114 | |
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| 115 | return 0; |
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| 116 | } |
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| 117 | |
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| 118 | int clients_set_fh (int id, int fh) { |
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[501] | 119 | |
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[0] | 120 | if ( g_clients[id] == NULL ) |
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| 121 | return -1; |
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| 122 | |
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| 123 | g_clients[id]->fh = fh; |
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| 124 | |
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| 125 | return 0; |
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| 126 | } |
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| 127 | |
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| 128 | int clients_set_pid (int id, int pid) { |
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| 129 | if ( g_clients[id] == NULL ) |
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| 130 | return -1; |
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| 131 | |
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| 132 | g_clients[id]->pid = pid; |
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| 133 | |
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| 134 | return 0; |
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| 135 | } |
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| 136 | |
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[439] | 137 | int clients_set_uid (int id, int uid) { |
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| 138 | if ( g_clients[id] == NULL ) |
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| 139 | return -1; |
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| 140 | |
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| 141 | g_clients[id]->uid = uid; |
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| 142 | |
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| 143 | return 0; |
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| 144 | } |
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| 145 | |
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| 146 | int clients_set_gid (int id, int gid) { |
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| 147 | if ( g_clients[id] == NULL ) |
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| 148 | return -1; |
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| 149 | |
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| 150 | g_clients[id]->gid = gid; |
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| 151 | |
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| 152 | return 0; |
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| 153 | } |
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| 154 | |
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[498] | 155 | #define MAX_STREAMLESS 8 |
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| 156 | |
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[0] | 157 | int clients_check_all (void) { |
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| 158 | struct timeval tv; |
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| 159 | fd_set r, e; |
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[66] | 160 | int i, j; |
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[0] | 161 | int ret; |
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| 162 | int fh; |
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| 163 | int max_fh = -1; |
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[71] | 164 | int have = 0; |
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[498] | 165 | struct { |
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| 166 | int id; |
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| 167 | int fh; |
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| 168 | } streamless[MAX_STREAMLESS]; |
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| 169 | int have_streamless = 0; |
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| 170 | int have_stream; |
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[0] | 171 | |
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| 172 | FD_ZERO(&r); |
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| 173 | FD_ZERO(&e); |
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| 174 | |
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| 175 | tv.tv_sec = 0; |
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| 176 | tv.tv_usec = 1; |
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| 177 | |
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| 178 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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| 179 | if ( g_clients[i] == NULL ) |
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| 180 | continue; |
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| 181 | |
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[66] | 182 | if ( (fh = g_clients[i]->fh) != -1 ) { |
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[71] | 183 | have++; |
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| 184 | |
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[610] | 185 | ROAR_DBG("clients_check_all(*): fh=%i", fh); |
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| 186 | |
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[66] | 187 | FD_SET(fh, &r); |
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| 188 | FD_SET(fh, &e); |
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| 189 | |
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| 190 | if ( fh > max_fh ) |
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| 191 | max_fh = fh; |
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[84] | 192 | } |
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[0] | 193 | |
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[498] | 194 | have_stream = 0; |
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| 195 | |
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[84] | 196 | for (j = 0; j < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; j++) { |
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| 197 | if ( (fh = streams_get_fh(g_clients[i]->streams[j])) != -1 ) { |
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| 198 | FD_SET(fh, &r); |
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[0] | 199 | |
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[84] | 200 | if ( fh > max_fh ) |
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| 201 | max_fh = fh; |
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[498] | 202 | |
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| 203 | have_stream = 1; |
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[66] | 204 | } |
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[84] | 205 | //printf("D: client=%i, stream=%i, fh=%i\n", i, j, fh); |
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[66] | 206 | } |
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| 207 | |
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[498] | 208 | if ( !have_stream && have_streamless < MAX_STREAMLESS ) { |
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| 209 | streamless[have_streamless ].id = i; |
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| 210 | if ( (streamless[have_streamless++].fh = g_clients[i]->fh) == -1 ) |
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| 211 | have_streamless--; |
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| 212 | } |
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[0] | 213 | } |
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| 214 | |
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[256] | 215 | if ( max_fh == -1 ) |
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| 216 | return 0; |
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| 217 | |
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[0] | 218 | if ( (ret = select(max_fh + 1, &r, NULL, &e, &tv)) < 1 ) { |
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[71] | 219 | return ret < 0 ? ret : have; |
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[0] | 220 | } |
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| 221 | |
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| 222 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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| 223 | if ( g_clients[i] == NULL ) |
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| 224 | continue; |
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| 225 | |
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[66] | 226 | if ( (fh = g_clients[i]->fh) != -1 ) { |
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| 227 | if ( FD_ISSET(fh, &r) ) { |
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| 228 | if ( g_clients[i]->execed == -1 ) { |
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| 229 | clients_check(i); |
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[255] | 230 | /* |
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[66] | 231 | } else { |
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| 232 | streams_check(g_clients[i]->execed); |
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[255] | 233 | */ |
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[66] | 234 | } |
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| 235 | } |
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[0] | 236 | |
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[84] | 237 | if ( FD_ISSET(fh, &e) ) { |
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[66] | 238 | clients_delete(i); |
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[84] | 239 | continue; |
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| 240 | } |
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| 241 | } |
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| 242 | |
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| 243 | if ( g_clients[i] == NULL ) |
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| 244 | continue; |
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| 245 | |
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| 246 | for (j = 0; j < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; j++) { |
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| 247 | //printf("D: client=%i, stream=%i, g_clients[i=%i] = %p\n", i, j, i, g_clients[i]); |
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[136] | 248 | if ( g_clients[i] == NULL ) // streams_check() bellow can delete our client (why?) |
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| 249 | break; |
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[84] | 250 | if ( (fh = streams_get_fh(g_clients[i]->streams[j])) != -1 ) { |
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| 251 | if ( FD_ISSET(fh, &r) ) { |
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| 252 | streams_check(g_clients[i]->streams[j]); |
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[66] | 253 | } |
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[0] | 254 | } |
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| 255 | } |
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| 256 | } |
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| 257 | |
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[498] | 258 | if ( have_streamless ) { |
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| 259 | FD_ZERO(&r); |
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| 260 | |
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| 261 | tv.tv_sec = 0; |
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| 262 | tv.tv_usec = 1; |
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| 263 | |
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| 264 | max_fh = -1; |
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| 265 | |
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| 266 | for (i = 0; i < have_streamless; i++) { |
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[607] | 267 | if ( ! g_clients[j = streamless[i].id] ) |
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| 268 | continue; |
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| 269 | |
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| 270 | if ( g_clients[j]->execed != -1 ) |
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[601] | 271 | continue; |
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| 272 | |
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[498] | 273 | fh = streamless[i].fh; |
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| 274 | |
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| 275 | ROAR_DBG("clients_check_all(void): fh=%i", fh); |
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| 276 | FD_SET(fh, &r); |
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| 277 | |
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| 278 | if ( fh > max_fh ) |
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| 279 | max_fh = fh; |
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| 280 | } |
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| 281 | |
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| 282 | if ( (ret = select(max_fh + 1, &r, NULL, NULL, &tv)) < 0 ) { |
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| 283 | return ret; |
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| 284 | } |
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| 285 | |
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| 286 | for (i = 0; i < have_streamless; i++) { |
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| 287 | if ( FD_ISSET(streamless[i].fh, &r) ) { |
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| 288 | clients_check(streamless[i].id); |
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| 289 | } |
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| 290 | } |
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| 291 | } |
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| 292 | |
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[71] | 293 | ROAR_DBG("clients_check_all(void) = %i // have value", have); |
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| 294 | return have; |
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[0] | 295 | } |
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| 296 | |
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| 297 | int clients_check (int id) { |
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| 298 | struct roar_message m; |
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| 299 | struct roar_connection con; |
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| 300 | char * data = NULL; |
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| 301 | int oldcmd; |
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| 302 | int r; |
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[498] | 303 | int rv = 0; |
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[0] | 304 | |
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| 305 | if ( g_clients[id] == NULL ) |
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| 306 | return -1; |
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| 307 | if ( g_clients[id]->fh == -1 ) |
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| 308 | return -1; |
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| 309 | |
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| 310 | con.fh = g_clients[id]->fh; |
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| 311 | |
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| 312 | r = roar_recv_message(&con, &m, &data); |
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| 313 | |
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| 314 | if ( r == -1 ) { // should we drop the client? |
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| 315 | clients_delete(id); |
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| 316 | return -1; |
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| 317 | } |
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| 318 | |
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| 319 | roar_debug_message_print(&m); |
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| 320 | |
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| 321 | oldcmd = m.cmd; |
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| 322 | |
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| 323 | if ( (r = command_exec(id, &m, data)) == -1 ) { |
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| 324 | m.cmd = ROAR_CMD_ERROR; |
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| 325 | m.datalen = 0; |
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| 326 | ROAR_DBG("clients_check(*): Exec of command faild!"); |
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| 327 | } else { |
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| 328 | if ( m.cmd == oldcmd ) { |
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| 329 | m.cmd = ROAR_CMD_OK; |
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| 330 | m.datalen = 0; |
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[498] | 331 | } else if ( m.cmd == ROAR_CMD_OK_STOP ) { |
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| 332 | m.cmd = ROAR_CMD_OK; |
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| 333 | rv = 1; |
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[0] | 334 | } |
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| 335 | } |
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| 336 | |
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| 337 | roar_send_message(&con, &m, NULL); |
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| 338 | |
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| 339 | if ( data ) |
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| 340 | free(data); |
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| 341 | |
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| 342 | ROAR_DBG("clients_check(id=%i) = 0", id); |
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[498] | 343 | return rv; |
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[0] | 344 | } |
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| 345 | |
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| 346 | int clients_send_mon (struct roar_audio_info * sa, uint32_t pos) { |
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| 347 | int i; |
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| 348 | int fh; |
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| 349 | |
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| 350 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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| 351 | if ( g_clients[i] == NULL ) |
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| 352 | continue; |
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| 353 | |
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| 354 | if ( (fh = g_clients[i]->fh) == -1 ) |
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| 355 | continue; |
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| 356 | |
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| 357 | if ( g_clients[i]->execed == -1 ) { |
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| 358 | // TODO: add some code to send a message to the client insetd of the raw data. |
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| 359 | } else { |
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| 360 | // streams_check(g_clients[i]->execed); |
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| 361 | streams_send_mon(g_clients[i]->execed); |
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| 362 | // if ( streams_send_mon(g_clients[i]->execed) == -1 ) |
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| 363 | // clients_delete(i); // delete client in case we could not write |
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| 364 | } |
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| 365 | } |
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| 366 | |
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| 367 | return -1; |
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| 368 | } |
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| 369 | |
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| 370 | int clients_send_filter(struct roar_audio_info * sa, uint32_t pos) { |
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| 371 | int i; |
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| 372 | int fh; |
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| 373 | |
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| 374 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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| 375 | if ( g_clients[i] == NULL ) |
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| 376 | continue; |
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| 377 | |
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| 378 | if ( (fh = g_clients[i]->fh) == -1 ) |
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| 379 | continue; |
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| 380 | |
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| 381 | if ( g_clients[i]->execed == -1 ) { |
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| 382 | // TODO: add some code to send a message to the client insetd of the raw data. |
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| 383 | } else { |
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| 384 | // streams_check(g_clients[i]->execed); |
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| 385 | streams_send_filter(g_clients[i]->execed); |
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| 386 | // if ( streams_send_mon(g_clients[i]->execed) == -1 ) |
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| 387 | // clients_delete(i); // delete client in case we could not write |
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| 388 | } |
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| 389 | } |
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| 390 | |
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| 391 | return -1; |
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| 392 | } |
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| 393 | |
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| 394 | int client_stream_exec (int client, int stream) { |
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| 395 | int i; |
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| 396 | |
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| 397 | if ( g_clients[client] == NULL ) |
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| 398 | return -1; |
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| 399 | |
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| 400 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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| 401 | if ( g_clients[client]->streams[i] == stream ) { |
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| 402 | g_clients[client]->execed = stream; |
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| 403 | streams_set_fh(stream, g_clients[client]->fh); |
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[378] | 404 | streams_set_socktype(stream, ROAR_SOCKET_TYPE_GENSTR); |
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[0] | 405 | return 0; |
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| 406 | } |
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| 407 | } |
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| 408 | |
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| 409 | return -1; |
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| 410 | } |
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| 411 | |
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[78] | 412 | int client_stream_set_fh (int client, int stream, int fh) { |
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| 413 | int i; |
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| 414 | |
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| 415 | if ( g_clients[client] == NULL ) |
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| 416 | return -1; |
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| 417 | |
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| 418 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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| 419 | if ( g_clients[client]->streams[i] == stream ) { |
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| 420 | streams_set_fh(stream, fh); |
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| 421 | return 0; |
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| 422 | } |
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| 423 | } |
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| 424 | |
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| 425 | return -1; |
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| 426 | } |
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| 427 | |
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[0] | 428 | int client_stream_add (int client, int stream) { |
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| 429 | int i; |
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| 430 | |
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| 431 | if ( g_clients[client] == NULL ) |
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| 432 | return -1; |
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| 433 | |
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| 434 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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| 435 | if ( g_clients[client]->streams[i] == -1 ) { |
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| 436 | g_clients[client]->streams[i] = stream; |
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| 437 | streams_set_client(stream, client); |
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| 438 | return 0; |
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| 439 | } |
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| 440 | } |
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| 441 | |
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| 442 | return -1; |
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| 443 | } |
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| 444 | |
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| 445 | int client_stream_delete (int client, int stream) { |
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| 446 | int i; |
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| 447 | |
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| 448 | if ( g_clients[client] == NULL ) |
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| 449 | return -1; |
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| 450 | |
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| 451 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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| 452 | if ( g_clients[client]->streams[i] == stream ) { |
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| 453 | g_clients[client]->streams[i] = -1; |
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| 454 | |
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| 455 | if ( stream == g_clients[client]->execed ) { |
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| 456 | ROAR_DBG("client_stream_delete(client=%i, stream=%i): stream is execed one, deleting client!", client, stream); |
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| 457 | clients_delete(client); |
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| 458 | } |
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| 459 | |
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| 460 | ROAR_DBG("client_stream_delete(client=%i, stream=%i) = 0", client, stream); |
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| 461 | return 0; |
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| 462 | } |
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| 463 | } |
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| 464 | |
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| 465 | ROAR_DBG("client_stream_delete(client=%i, stream=%i) = -1", client, stream); |
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| 466 | return -1; |
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| 467 | } |
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| 468 | |
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| 469 | //ll |
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