sh/jshn.sh: add json_for_each_item()

[project/libubox.git] / utils.h

diff --git a/utils.h b/utils.h
index 383a521..e72d947 100644 (file)
--- a/utils.h
+++ b/utils.h
@@ -21,6 +21,9 @@
 
 #include <sys/types.h>
 #include <sys/time.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <unistd.h>
 #include <time.h>
 
 /*
@@ -54,15 +57,23 @@ extern int __BUILD_BUG_ON_CONDITION_FAILED;
 #define BUILD_BUG_ON __BUILD_BUG_ON
 #endif
 
-#ifdef __APPLE__
+#if defined(__APPLE__) && !defined(CLOCK_MONOTONIC)
+#define LIBUBOX_COMPAT_CLOCK_GETTIME
 
-#define CLOCK_REALTIME 0
-#define CLOCK_MONOTONIC        1
+#include <mach/clock_types.h>
+#define CLOCK_REALTIME CALENDAR_CLOCK
+#define CLOCK_MONOTONIC        SYSTEM_CLOCK
 
-void clock_gettime(int type, struct timespec *tv);
+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>
@@ -70,17 +81,14 @@ void clock_gettime(int type, struct timespec *tv);
 #elif defined(__APPLE__)
 #include <machine/endian.h>
 #include <machine/byte_order.h>
-#define bswap_16(x) OSSwapInt16(x)
 #define bswap_32(x) OSSwapInt32(x)
 #define bswap_64(x) OSSwapInt64(x)
 #elif defined(__FreeBSD__)
 #include <sys/endian.h>
-#define bswap_16(x) bswap16(x)
 #define bswap_32(x) bswap32(x)
 #define bswap_64(x) bswap64(x)
 #else
 #include <machine/endian.h>
-#define bswap_16(x) swap16(x)
 #define bswap_32(x) swap32(x)
 #define bswap_64(x) swap64(x)
 #endif
@@ -95,17 +103,46 @@ void clock_gettime(int type, struct timespec *tv);
 #define __LITTLE_ENDIAN LITTLE_ENDIAN
 #endif
 
+static inline uint16_t __u_bswap16(uint16_t val)
+{
+       return ((val >> 8) & 0xffu) | ((val & 0xffu) << 8);
+}
+
+#if _GNUC_MIN_VER(4, 2)
+#define __u_bswap32(x) __builtin_bswap32(x)
+#define __u_bswap64(x) __builtin_bswap64(x)
+#else
+#define __u_bswap32(x) bswap_32(x)
+#define __u_bswap64(x) bswap_64(x)
+#endif
+
 #if __BYTE_ORDER == __LITTLE_ENDIAN
 
-#define cpu_to_be64(x) bswap_64(x)
-#define cpu_to_be32(x) bswap_32(x)
-#define cpu_to_be16(x) bswap_16(x)
+#define cpu_to_be64(x) __u_bswap64(x)
+#define cpu_to_be32(x) __u_bswap32(x)
+#define cpu_to_be16(x) __u_bswap16((uint16_t) (x))
 
-#define be64_to_cpu(x) bswap_64(x)
-#define be32_to_cpu(x) bswap_32(x)
-#define be16_to_cpu(x) bswap_16(x)
+#define be64_to_cpu(x) __u_bswap64(x)
+#define be32_to_cpu(x) __u_bswap32(x)
+#define be16_to_cpu(x) __u_bswap16((uint16_t) (x))
 
-#else
+#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) __u_bswap64(x)
+#define cpu_to_le32(x) __u_bswap32(x)
+#define cpu_to_le16(x) __u_bswap16((uint16_t) (x))
+
+#define le64_to_cpu(x) __u_bswap64(x)
+#define le32_to_cpu(x) __u_bswap32(x)
+#define le16_to_cpu(x) __u_bswap16((uint16_t) (x))
 
 #define cpu_to_be64(x) (x)
 #define cpu_to_be32(x) (x)
@@ -121,4 +158,43 @@ void clock_gettime(int type, struct timespec *tv);
 #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