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Nunuhara Cabbage
ac5859adfe
Local pages need to be reference counted like any other page. It is possible to create references to local variables which escape the extent of their function call, so using a stack doesn't work. Caching is implemented for small page sizes to avoid invoking malloc/free on every function call.
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* Copyright (C) 2019 Nunuhara Cabbage <nunuhara@haniwa.technology>
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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, see <http://gnu.org/licenses/>.
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*/
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#ifndef SYSTEM4_H
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#define SYSTEM4_H
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#include <stddef.h>
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// TODO: should put in a separate header and guard with feature checks
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#define const_pure __attribute__((const))
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#define mem_alloc __attribute__((malloc))
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#define noreturn _Noreturn
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#define unused __attribute__((unused))
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#define ERROR(fmt, ...) \
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sys_error("*ERROR*(%s:%s:%d): " fmt "\n", __FILE__, __func__, __LINE__, ##__VA_ARGS__)
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#define WARNING(fmt, ...) \
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sys_message("*WARNING*(%s:%s:%d): " fmt "\n", __FILE__, __func__, __LINE__, ##__VA_ARGS__)
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#define NOTICE(fmt, ...) \
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sys_message(fmt "\n", ##__VA_ARGS__)
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noreturn void sys_error(char *fmt, ...);
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void sys_warning(char *fmt, ...);
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void sys_message(char *fmt, ...);
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noreturn void sys_exit(int code);
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#define xmalloc(size) _xmalloc(size, __func__)
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mem_alloc void *_xmalloc(size_t size, const char *func);
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#define xrealloc(ptr, size) _xrealloc(ptr, size, __func__)
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mem_alloc void *_xrealloc(void *ptr, size_t size, const char *func);
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#define xstrdup(str) _xstrdup(str, __func__)
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mem_alloc char *_xstrdup(const char *in, const char *func);
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#define max(a, b) \
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({ \
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__typeof__ (a) _a = (a); \
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__typeof__ (b) _b = (b); \
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_a > _b ? _a : _b; \
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})
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#define min(a, b) \
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({ \
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__typeof__ (a) _a = (a); \
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__typeof__ (b) _b = (b); \
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_a < _b ? _a : _b; \
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})
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#endif /* SYSTEM4_H */
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