mirror of
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112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
/**
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* @file utils/misc.h
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* @author Martin Pulec <pulec@cesnet.cz>
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* @author Martin Piatka <piatka@cesnet.cz>
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*/
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/*
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* Copyright (c) 2014-2023 CESNET z.s.p.o.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of CESNET nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef UTILS_MISC_H_
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#define UTILS_MISC_H_
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#ifdef __cplusplus
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#include <cstddef>
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#include <cstdint>
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#else
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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bool is_wine(void);
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long long unit_evaluate(const char *str, const char **endptr);
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double unit_evaluate_dbl(const char *str, bool case_sensitive,
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const char **endptr);
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const char *format_in_si_units(unsigned long long int val);
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int get_framerate_n(double framerate);
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int get_framerate_d(double framerate);
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const char *ug_strerror(int errnum);
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void ug_perror(const char *s);
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int get_cpu_core_count(void);
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bool is_arm_mac(void);
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struct key_val {
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const char *key;
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const char *val;
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};
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void print_module_usage(const char *module_name, const struct key_val *options, const struct key_val *options_full, bool print_full_help);
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#ifdef __cplusplus
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}
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#endif
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#ifdef __cplusplus
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uint32_t parse_uint32(const char *value_str) noexcept(false);
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#include <map>
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template<typename key, typename T>
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inline T get_map_val_or_default(std::map<key, T> const& map, key const& k, T const& def) {
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if (auto && it = map.find(k); it != map.end()) {
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return it->second;
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}
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return def;
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}
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/* Like std::out_ptr from C++23 */
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template<class Smart, class Pointer = typename Smart::pointer>
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class out_ptr{
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public:
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out_ptr(Smart& out) noexcept: smart_ptr(out) { }
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~out_ptr(){
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smart_ptr.reset(ptr);
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}
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out_ptr(out_ptr&&) = delete;
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out_ptr& operator=(out_ptr&&) = delete;
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operator Pointer*() noexcept { return &ptr; }
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operator void**() noexcept { return &ptr; }
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private:
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Smart& smart_ptr;
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Pointer ptr = nullptr;
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};
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#endif //__cplusplus
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#endif// UTILS_MISC_H_
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