paul@181 | 1 | /* |
paul@181 | 2 | * Interprocess communication macros. |
paul@181 | 3 | * |
paul@181 | 4 | * Copyright (C) 2019 Paul Boddie <paul@boddie.org.uk> |
paul@181 | 5 | * |
paul@181 | 6 | * This program is free software; you can redistribute it and/or |
paul@181 | 7 | * modify it under the terms of the GNU General Public License as |
paul@181 | 8 | * published by the Free Software Foundation; either version 2 of |
paul@181 | 9 | * the License, or (at your option) any later version. |
paul@181 | 10 | * |
paul@181 | 11 | * This program is distributed in the hope that it will be useful, |
paul@181 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
paul@181 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
paul@181 | 14 | * GNU General Public License for more details. |
paul@181 | 15 | * |
paul@181 | 16 | * You should have received a copy of the GNU General Public License |
paul@181 | 17 | * along with this program; if not, write to the Free Software |
paul@181 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
paul@181 | 19 | * Boston, MA 02110-1301, USA |
paul@181 | 20 | */ |
paul@181 | 21 | |
paul@181 | 22 | #pragma once |
paul@181 | 23 | |
paul@181 | 24 | /* Count the size of an array. */ |
paul@181 | 25 | |
paul@181 | 26 | #define VA_ARGCOUNT(TYPE, ARGS) (sizeof(ARGS) / sizeof(TYPE)) |
paul@181 | 27 | |
paul@181 | 28 | /* Prepare an array from a variable argument list. */ |
paul@181 | 29 | |
paul@181 | 30 | #define VA_ARGLIST(TYPE, ...) ((TYPE []) {__VA_ARGS__}) |
paul@181 | 31 | |
paul@181 | 32 | /* Assign array members. */ |
paul@181 | 33 | |
paul@181 | 34 | #define ARRAY_ASSIGN(TO, TYPE, ...) \ |
paul@181 | 35 | memcpy(TO, VA_ARGLIST(TYPE, __VA_ARGS__), \ |
paul@181 | 36 | sizeof(VA_ARGLIST(TYPE, __VA_ARGS__))) |
paul@181 | 37 | |
paul@181 | 38 | #define ipc_set_registers(TO, ...) ARRAY_ASSIGN(TO, l4_umword_t, __VA_ARGS__) |