#ifndef __LIBUBOX_UTILS_H
#define __LIBUBOX_UTILS_H
+#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <stdint.h>
(sizeof(int) == sizeof(*(1 ? ((void*)((long)(x) * 0l)) : (int*)1)))
#define __eval_once(func, x) \
- ({ typeof(x) __x = x; func(__x); })
+ ({ __typeof__(x) __x = x; func(__x); })
+#ifdef __cplusplus
+/*
+ * g++ does not support __builtin_choose_expr, so always use __eval_once.
+ * Unfortunately this means that the byte order functions can't be used
+ * as a constant expression anymore
+ */
+#define __eval_safe(func, x) __eval_once(func, x)
+#else
#define __eval_safe(func, x) \
__builtin_choose_expr(__is_constant(x), \
func(x), __eval_once(func, x))
+#endif
#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define const_cpu_to_be64(x) __constant_swap64(x)
+#define const_cpu_to_be32(x) __constant_swap32(x)
+#define const_cpu_to_be16(x) __constant_swap16(x)
+
+#define const_be64_to_cpu(x) __constant_swap64(x)
+#define const_be32_to_cpu(x) __constant_swap32(x)
+#define const_be16_to_cpu(x) __constant_swap16(x)
+
+#define const_cpu_to_le64(x) (x)
+#define const_cpu_to_le32(x) (x)
+#define const_cpu_to_le16(x) (x)
+
+#define const_le64_to_cpu(x) (x)
+#define const_le32_to_cpu(x) (x)
+#define const_le16_to_cpu(x) (x)
+
#define cpu_to_be64(x) __eval_safe(__constant_swap64, x)
#define cpu_to_be32(x) __eval_safe(__constant_swap32, x)
#define cpu_to_be16(x) __eval_safe(__constant_swap16, x)
#else /* __BYTE_ORDER == __LITTLE_ENDIAN */
+#define const_cpu_to_le64(x) __constant_swap64(x)
+#define const_cpu_to_le32(x) __constant_swap32(x)
+#define const_cpu_to_le16(x) __constant_swap16(x)
+
+#define const_le64_to_cpu(x) __constant_swap64(x)
+#define const_le32_to_cpu(x) __constant_swap32(x)
+#define const_le16_to_cpu(x) __constant_swap16(x)
+
+#define const_cpu_to_be64(x) (x)
+#define const_cpu_to_be32(x) (x)
+#define const_cpu_to_be16(x) (x)
+
+#define const_be64_to_cpu(x) (x)
+#define const_be32_to_cpu(x) (x)
+#define const_be16_to_cpu(x) (x)
+
#define cpu_to_le64(x) __eval_safe(__constant_swap64, x)
#define cpu_to_le32(x) __eval_safe(__constant_swap32, x)
#define cpu_to_le16(x) __eval_safe(__constant_swap16, x)
#define __hidden __attribute__((visibility("hidden")))
#endif
+#ifndef __has_attribute
+# define __has_attribute(x) 0
+#endif
+
+#ifndef fallthrough
+# if __has_attribute(__fallthrough__)
+# define fallthrough __attribute__((__fallthrough__))
+# else
+# define fallthrough do {} while (0) /* fallthrough */
+# endif
+#endif
+
int b64_encode(const void *src, size_t src_len,
void *dest, size_t dest_len);
void *cbuf_alloc(unsigned int order);
void cbuf_free(void *ptr, unsigned int order);
+int mkdir_p(char *dir, mode_t mask);
#endif