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/* SPDX-License-Identifier: MIT */
#ifndef LIBURING_LIB_H
#define LIBURING_LIB_H
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef CONFIG_NOLIBC
# if defined(__x86_64__) || defined(__i386__)
# include "arch/x86/lib.h"
# else
# error "This arch doesn't support building liburing without libc"
# endif
#endif
#ifndef offsetof
# define offsetof(TYPE, FIELD) ((size_t) &((TYPE *)0)->FIELD)
#endif
#ifndef container_of
# define container_of(PTR, TYPE, FIELD) ({ \
__typeof__(((TYPE *)0)->FIELD) *__FIELD_PTR = (PTR); \
(TYPE *)((char *) __FIELD_PTR - offsetof(TYPE, FIELD)); \
})
#endif
void *__uring_malloc(size_t len);
void __uring_free(void *p);
static inline void *uring_malloc(size_t len)
{
#ifdef CONFIG_NOLIBC
return __uring_malloc(len);
#else
return malloc(len);
#endif
}
static inline void uring_free(void *ptr)
{
#ifdef CONFIG_NOLIBC
__uring_free(ptr);
#else
free(ptr);
#endif
}
static inline long get_page_size(void)
{
#ifdef CONFIG_NOLIBC
return __arch_impl_get_page_size();
#else
long page_size;
page_size = sysconf(_SC_PAGESIZE);
if (page_size < 0)
page_size = 4096;
return page_size;
#endif
}
#endif /* #ifndef LIBURING_LIB_H */
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