X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=blobdiff_plain;f=utils.h;h=aa480e254a8ee9f405a93c6ae2124bfcce6306ab;hp=065a28b343f9e29e7cb4fe53d49313ff539fb972;hb=eebe3fcd2a5728264faa5ae72bbc38d7bb704c8e;hpb=9c8ab5d64cb1bfc6f8a235af5913ed3537c38e2a

diff --git a/utils.h b/utils.h
index 065a28b..aa480e2 100644
--- a/utils.h
+++ b/utils.h
@@ -20,6 +20,11 @@
 #define __LIBUBOX_UTILS_H
 
 #include <sys/types.h>
+#include <sys/time.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <time.h>
 
 /*
  * calloc_a(size_t len, [void **addr, size_t len,...], NULL)
@@ -30,7 +35,7 @@
  * the last argument needs to be a NULL pointer
  */
 
-#define calloc_a(len, ...) __calloc_a(len, ##__VA_ARGS__)
+#define calloc_a(len, ...) __calloc_a(len, ##__VA_ARGS__, NULL)
 
 void *__calloc_a(size_t len, ...);
 
@@ -38,4 +43,165 @@ void *__calloc_a(size_t len, ...);
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #endif
 
+#define __BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+
+#ifdef __OPTIMIZE__
+extern int __BUILD_BUG_ON_CONDITION_FAILED;
+#define BUILD_BUG_ON(condition)					\
+	do {							\
+		__BUILD_BUG_ON(condition);			\
+		if (condition)					\
+			__BUILD_BUG_ON_CONDITION_FAILED = 1;	\
+	} while(0)
+#else
+#define BUILD_BUG_ON __BUILD_BUG_ON
+#endif
+
+#if defined(__APPLE__) && !defined(CLOCK_MONOTONIC)
+#define LIBUBOX_COMPAT_CLOCK_GETTIME
+
+#include <mach/clock_types.h>
+#define CLOCK_REALTIME	CALENDAR_CLOCK
+#define CLOCK_MONOTONIC	SYSTEM_CLOCK
+
+int clock_gettime(int type, struct timespec *tv);
+
+#endif
+
+#ifdef __GNUC__
+#define _GNUC_MIN_VER(maj, min) (((__GNUC__ << 8) + __GNUC_MINOR__) >= (((maj) << 8) + (min)))
+#else
+#define _GNUC_MIN_VER(maj, min) 0
+#endif
+
+#if defined(__linux__) || defined(__CYGWIN__)
+#include <byteswap.h>
+#include <endian.h>
+
+#elif defined(__APPLE__)
+#include <machine/endian.h>
+#include <machine/byte_order.h>
+#elif defined(__FreeBSD__)
+#include <sys/endian.h>
+#else
+#include <machine/endian.h>
+#endif
+
+#ifndef __BYTE_ORDER
+#define __BYTE_ORDER BYTE_ORDER
+#endif
+#ifndef __BIG_ENDIAN
+#define __BIG_ENDIAN BIG_ENDIAN
+#endif
+#ifndef __LITTLE_ENDIAN
+#define __LITTLE_ENDIAN LITTLE_ENDIAN
+#endif
+
+#define __constant_swap16(x) ((uint16_t)(				\
+	(((uint16_t)(x) & (uint16_t)0x00ffU) << 8) |			\
+	(((uint16_t)(x) & (uint16_t)0xff00U) >> 8)))
+
+#define __constant_swap32(x) ((uint32_t)(				\
+	(((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) |		\
+	(((uint32_t)(x) & (uint32_t)0x0000ff00UL) <<  8) |		\
+	(((uint32_t)(x) & (uint32_t)0x00ff0000UL) >>  8) |		\
+	(((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24)))
+
+#define __constant_swap64(x) ((uint64_t)(				\
+	(((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) |	\
+	(((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) |	\
+	(((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) |	\
+	(((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) <<  8) |	\
+	(((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >>  8) |	\
+	(((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) |	\
+	(((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) |	\
+	(((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56)))
+
+
+static inline uint16_t __u_bswap16(uint16_t val)
+{
+	return ((val >> 8) & 0xffu) | ((val & 0xffu) << 8);
+}
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+
+#define cpu_to_be64(x) __constant_swap64(x)
+#define cpu_to_be32(x) __constant_swap32(x)
+#define cpu_to_be16(x) __constant_swap16(x)
+
+#define be64_to_cpu(x) __constant_swap64(x)
+#define be32_to_cpu(x) __constant_swap32(x)
+#define be16_to_cpu(x) __constant_swap16(x)
+
+#define cpu_to_le64(x) (x)
+#define cpu_to_le32(x) (x)
+#define cpu_to_le16(x) (x)
+
+#define le64_to_cpu(x) (x)
+#define le32_to_cpu(x) (x)
+#define le16_to_cpu(x) (x)
+
+#else /* __BYTE_ORDER == __LITTLE_ENDIAN */
+
+#define cpu_to_le64(x) __constant_swap64(x)
+#define cpu_to_le32(x) __constant_swap32(x)
+#define cpu_to_le16(x) __constant_swap16(x)
+
+#define le64_to_cpu(x) __constant_swap64(x)
+#define le32_to_cpu(x) __constant_swap32(x)
+#define le16_to_cpu(x) __constant_swap16(x)
+
+#define cpu_to_be64(x) (x)
+#define cpu_to_be32(x) (x)
+#define cpu_to_be16(x) (x)
+
+#define be64_to_cpu(x) (x)
+#define be32_to_cpu(x) (x)
+#define be16_to_cpu(x) (x)
+
+#endif
+
+#ifndef __packed
+#define __packed __attribute__((packed))
+#endif
+
+#ifndef __constructor
+#define __constructor __attribute__((constructor))
+#endif
+
+#ifndef __destructor
+#define __destructor __attribute__((destructor))
+#endif
+
+#ifndef __hidden
+#define __hidden __attribute__((visibility("hidden")))
+#endif
+
+int b64_encode(const void *src, size_t src_len,
+	       void *dest, size_t dest_len);
+
+int b64_decode(const void *src, void *dest, size_t dest_len);
+
+#define B64_ENCODE_LEN(_len)	((((_len) + 2) / 3) * 4 + 1)
+#define B64_DECODE_LEN(_len)	(((_len) / 4) * 3 + 1)
+
+static inline unsigned int cbuf_order(unsigned int x)
+{
+	return 32 - __builtin_clz(x - 1);
+}
+
+static inline unsigned long cbuf_size(int order)
+{
+	unsigned long page_size = sysconf(_SC_PAGESIZE);
+	unsigned long ret = 1ULL << order;
+
+	if (ret < page_size)
+		ret = page_size;
+
+	return ret;
+}
+
+void *cbuf_alloc(unsigned int order);
+void cbuf_free(void *ptr, unsigned int order);
+
 #endif