1 files changed, 102 insertions, 0 deletions
diff --git a/examples/redis-unstable/src/util.h b/examples/redis-unstable/src/util.h
new file mode 100644
index 0000000..cbc63ea
--- /dev/null
+++ b/examples/redis-unstable/src/util.h
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2009-Present, Redis Ltd.
+ * All rights reserved.
+ *
+ * Licensed under your choice of (a) the Redis Source Available License 2.0
+ * (RSALv2); or (b) the Server Side Public License v1 (SSPLv1); or (c) the
+ * GNU Affero General Public License v3 (AGPLv3).
+ */
+
+#ifndef __REDIS_UTIL_H
+#define __REDIS_UTIL_H
+
+#include <stdint.h>
+#include "sds.h"
+
+/* The maximum number of characters needed to represent a long double
+ * as a string (long double has a huge range of some 4952 chars, see LDBL_MAX).
+ * This should be the size of the buffer given to ld2string */
+#define MAX_LONG_DOUBLE_CHARS 5*1024
+
+/* The maximum number of characters needed to represent a double
+ * as a string (double has a huge range of some 328 chars, see DBL_MAX).
+ * This should be the size of the buffer for sprintf with %f */
+#define MAX_DOUBLE_CHARS 400
+
+/* The maximum number of characters needed to for d2string/fpconv_dtoa call.
+ * Since it uses %g and not %f, some 40 chars should be enough. */
+#define MAX_D2STRING_CHARS 128
+
+/* Bytes needed for long -> str + '\0' */
+#define LONG_STR_SIZE      21
+
+/* long double to string conversion options */
+typedef enum {
+    LD_STR_AUTO,     /* %.17Lg */
+    LD_STR_HUMAN,    /* %.17Lf + Trimming of trailing zeros */
+    LD_STR_HEX       /* %La */
+} ld2string_mode;
+
+int prefixmatch(const char *pattern, int patternLen, const char *prefixStr, 
+                int prefixStrLen, int nocase);
+int stringmatchlen(const char *p, int plen, const char *s, int slen, int nocase);
+int stringmatch(const char *p, const char *s, int nocase);
+int stringmatchlen_fuzz_test(void);
+unsigned long long memtoull(const char *p, int *err);
+const char *mempbrk(const char *s, size_t len, const char *chars, size_t charslen);
+char *memmapchars(char *s, size_t len, const char *from, const char *to, size_t setlen);
+uint32_t digits10(uint64_t v);
+uint32_t sdigits10(int64_t v);
+int ll2string(char *s, size_t len, long long value);
+int ull2string(char *s, size_t len, unsigned long long value);
+int string2ll(const char *s, size_t slen, long long *value);
+int string2ull(const char *s, unsigned long long *value);
+int string2l(const char *s, size_t slen, long *value);
+int string2ul_base16_async_signal_safe(const char *src, size_t slen, unsigned long *result_output);
+int string2ld(const char *s, size_t slen, long double *dp);
+int string2d(const char *s, size_t slen, double *dp);
+int trimDoubleString(char *buf, size_t len);
+int d2string(char *buf, size_t len, double value);
+int fixedpoint_d2string(char *dst, size_t dstlen, double dvalue, int fractional_digits);
+int ld2string(char *buf, size_t len, long double value, ld2string_mode mode);
+int double2ll(double d, long long *out);
+int yesnotoi(char *s);
+sds getAbsolutePath(char *filename);
+long getTimeZone(void);
+int pathIsBaseName(char *path);
+int dirCreateIfMissing(char *dname);
+int dirExists(char *dname);
+int dirRemove(char *dname);
+int fileExist(char *filename);
+sds makePath(char *path, char *filename);
+int fsyncFileDir(const char *filename);
+int reclaimFilePageCache(int fd, size_t offset, size_t length);
+char *fgets_async_signal_safe(char *dest, int buff_size, int fd);
+int vsnprintf_async_signal_safe(char *to, size_t size, const char *format, va_list ap);
+#ifdef __GNUC__
+int snprintf_async_signal_safe(char *to, size_t n, const char *fmt, ...)
+    __attribute__((format(printf, 3, 4)));
+#else
+int snprintf_async_signal_safe(char *to, size_t n, const char *fmt, ...);
+#endif
+size_t redis_strlcpy(char *dst, const char *src, size_t dsize);
+size_t redis_strlcat(char *dst, const char *src, size_t dsize);
+
+/* to keep it opt without conditions Works only for: 0 < x < 2^63 */
+static inline int log2ceil(size_t x) {
+#if UINTPTR_MAX == 0xffffffffffffffff
+    return  63 - __builtin_clzll(x);
+#else
+    return 31 - __builtin_clz(x);
+#endif
+}
+
+#ifndef static_assert
+#define static_assert(expr, lit) extern char __static_assert_failure[(expr) ? 1:-1]
+#endif
+
+#ifdef REDIS_TEST
+int utilTest(int argc, char **argv, int flags);
+#endif
+
+#endif