| 1 | //container_framework.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
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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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| 25 | #include "roard.h" |
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| 26 | |
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| 27 | #define _DECL() struct cont_fw_child_vio_inst * inst |
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| 28 | #define _CHECK() if ( vio == NULL ) \ |
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| 29 | return -1 |
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| 30 | #define _CINST() if ( (inst = vio->inst) == NULL ) \ |
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| 31 | return -1 |
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| 32 | #define _PREP() _CHECK(); \ |
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| 33 | _CINST() |
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| 34 | #define _BASIC() _DECL(); \ |
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| 35 | _PREP() |
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| 36 | |
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| 37 | int cont_fw_init_vio(struct roar_vio_calls * vio, void * inst) { |
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| 38 | if ( vio == NULL ) |
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| 39 | return -1; |
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| 40 | |
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| 41 | memset(vio, 0, sizeof(struct roar_vio_calls)); |
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| 42 | vio->inst = inst; |
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| 43 | |
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| 44 | vio->read = cont_fw_read; |
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| 45 | vio->write = cont_fw_write; |
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| 46 | vio->sync = cont_fw_sync; |
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| 47 | vio->close = cont_fw_close; |
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| 48 | |
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| 49 | return 0; |
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| 50 | } |
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| 51 | |
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| 52 | ssize_t cont_fw_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 53 | _BASIC(); |
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| 54 | |
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| 55 | if ( inst->parent->cb.read != NULL ) |
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| 56 | return inst->parent->cb.read(inst->parent, inst->inst, buf, count); |
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| 57 | |
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| 58 | return -1; |
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| 59 | } |
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| 60 | |
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| 61 | ssize_t cont_fw_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 62 | _BASIC(); |
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| 63 | |
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| 64 | if ( inst->parent->cb.write != NULL ) |
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| 65 | return inst->parent->cb.write(inst->parent, inst->inst, buf, count); |
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| 66 | |
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| 67 | return -1; |
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| 68 | } |
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| 69 | |
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| 70 | off_t cont_fw_lseek (struct roar_vio_calls * vio, off_t offset, int whence); |
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| 71 | int cont_fw_nonblock(struct roar_vio_calls * vio, int state); |
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| 72 | |
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| 73 | int cont_fw_sync (struct roar_vio_calls * vio) { |
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| 74 | _BASIC(); |
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| 75 | |
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| 76 | if ( inst->parent->cb.flush != NULL ) |
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| 77 | return inst->parent->cb.flush(inst->parent, inst->inst); |
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| 78 | |
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| 79 | return 0; |
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| 80 | } |
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| 81 | |
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| 82 | int cont_fw_close (struct roar_vio_calls * vio) { |
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| 83 | _DECL(); |
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| 84 | int r = 0; |
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| 85 | |
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| 86 | _PREP(); |
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| 87 | |
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| 88 | if ( cont_fw_sync(vio) == -1 ) |
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| 89 | r = -1; |
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| 90 | |
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| 91 | return -1; |
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| 92 | return r; |
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| 93 | } |
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| 94 | |
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| 95 | int cont_fw_ctl (struct roar_vio_calls * vio, int cmd, void * data); |
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| 96 | |
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| 97 | //ll |
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