Mercurial > molko
view libcore/core/util.h @ 159:e05a792f6910
ui: make message less clever and provide spacing field
author | David Demelier <markand@malikania.fr> |
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date | Fri, 16 Oct 2020 18:44:05 +0200 |
parents | 789b23e01f52 |
children | eb0a7ab71023 |
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/* * util.h -- utilities * * Copyright (c) 2020 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef MOLKO_UTIL_H #define MOLKO_UTIL_H /** * \file util.h * \brief Utilities. * \ingroup basics * * This file contains several utilities. * * \note In contrast to other files, identifiers are not prefixed with `util_` * for convenience. */ #include <stdarg.h> #include <stddef.h> #include "plat.h" /** * Get the number of elements in a static array. * * \param x the array * \return the number of elements */ #define NELEM(x) sizeof ((x)) / sizeof ((x)[0]) /** * Wrapper around malloc(3) that exits on allocation failure. * * \param size the size * \return a pointer * \post returned pointer will never be NULL */ void * emalloc(size_t size); /** * Wrapper around calloc(3) that exits on allocation failure. * * \param n the number of objects to allocate * \param size the size per n * \return a pointer * \post returned pointer will never be NULL */ void * ecalloc(size_t n, size_t size); /** * Copy the region specified by ptr. * * \pre ptr != NULL * \param ptr the pointer * \param size the size of the memory to copy * \return a pointer * \post returned pointer will never be NULL */ void * ememdup(const void *ptr, size_t size); /** * Create a dynamically allocated string in the printf(3) format string. * * \pre fmt != NULL * \return The heap allocated string. * \post Returned string will never be NULL. */ char * eprintf(const char *fmt, ...) PLAT_PRINTF(1, 2); /** * Similar to \ref eprintf with arguments pointer. * * \copydoc eprintf */ char * evprintf(const char *fmt, va_list ap) PLAT_PRINTF(1, 0); /** * Put the thread to sleep for a given amount of milliseconds. * * \param ms the number of milliseconds to wait */ void delay(unsigned int ms); #endif /* !MOLKO_UTIL_H */