mirror of
https://github.com/matrix-construct/construct
synced 2024-10-31 10:58:54 +01:00
116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* memory.h: A header for the memory functions.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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* USA
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*
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*/
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#ifndef _RB_MEMORY_H
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#define _RB_MEMORY_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define RB_UNIQUE_PTR(deleter) __attribute__((cleanup(deleter)))
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#define RB_AUTO_PTR RB_UNIQUE_PTR(rb_raii_free)
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void rb_outofmemory(void) __attribute__((noreturn));
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#ifdef __clang__
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__attribute__((malloc, returns_nonnull))
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#else
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__attribute__((malloc, alloc_size(1), returns_nonnull))
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#endif
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static inline void *
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rb_malloc(size_t size)
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{
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void *ret = calloc(1, size);
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if(rb_unlikely(ret == NULL))
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rb_outofmemory();
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return (ret);
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}
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#ifdef __clang__
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__attribute__((returns_nonnull))
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#else
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__attribute__((alloc_size(2), returns_nonnull))
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#endif
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static inline void *
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rb_realloc(void *x, size_t y)
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{
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void *ret = realloc(x, y);
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if(rb_unlikely(ret == NULL))
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rb_outofmemory();
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return (ret);
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}
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__attribute__((returns_nonnull))
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static inline char *
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rb_strndup(const char *x, size_t y)
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{
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char *ret = (char *)malloc(y);
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if(rb_unlikely(ret == NULL))
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rb_outofmemory();
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rb_strlcpy(ret, x, y);
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return (ret);
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}
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__attribute__((returns_nonnull))
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static inline char *
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rb_strdup(const char *x)
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{
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char *ret = (char *)malloc(strlen(x) + 1);
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if(rb_unlikely(ret == NULL))
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rb_outofmemory();
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strcpy(ret, x);
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return (ret);
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}
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// overrule libc's prototype and ignore the cast warning, allowing proper const
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// propagation without casting everywhere in the real code.
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wcast-qual"
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static inline void
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rb_free(const void *const ptr)
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{
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if(rb_likely(ptr != NULL))
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free((void *)ptr);
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}
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#pragma GCC diagnostic pop
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static inline void
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rb_raii_free(const void *const ptr)
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{
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if(!ptr)
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return;
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const void *const _ptr = *(const void *const *)ptr;
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if(!_ptr)
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return;
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rb_free(_ptr);
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}
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif /* _RB_MEMORY_H */
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