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Diffstat (limited to 'misc.h')
| -rw-r--r-- | misc.h | 58 |
1 files changed, 58 insertions, 0 deletions
@@ -0,0 +1,58 @@ +/* + * Copyright (C) 2014-2016 + * Olivier Gayot <ogayot@baylibre.com> + * Bartosz Golaszewski <bgolaszewski@baylibre.com> + * Olivier Gayot <olivier.gayot@sigexec.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MISC_H +#define MISC_H + +#include <sys/time.h> + +#define ssizeof(_foo) ((signed long)(sizeof((_foo)))) +#define countof(_array) (ssizeof((_array)) / ssizeof((_array)[0])) + +#define unsafe_free(_ptr) free((_ptr)) +#define safe_free(_ptr) \ + do { \ + free((_ptr)); \ + (_ptr) = NULL; \ + } while (0) + +#ifdef CONFIG_DEBUG +#define IF_DEBUG(...) __VA_ARGS__ +#else +#define IF_DEBUG(...) +#endif + +#define TV_FMT "(%d.%d)" +#define TV_PRINT(TV) (int)(TV).tv_sec, (int)(TV).tv_usec + +/* + * Returns 1 if a file descriptor is ready for writing, 0 otherwise or -1 + * on error. + */ +int caod_fd_wrready(int sock, struct timeval *tv); + +/* + * Returns 1 if a file descriptor is ready for reading, 0 otherwise or -1 + * on error. + */ +int caod_fd_rdready(int sock, struct timeval *tv); + +#endif /* MISC_H */ |