1 files changed, 77 insertions, 0 deletions
diff --git a/ext/unicorn_http/ext_help.h b/ext/unicorn_http/ext_help.h
new file mode 100644
index 0000000..7df73f7
--- /dev/null
+++ b/ext/unicorn_http/ext_help.h
@@ -0,0 +1,77 @@
+#ifndef ext_help_h
+#define ext_help_h
+
+#ifndef RSTRING_PTR
+#define RSTRING_PTR(s) (RSTRING(s)->ptr)
+#endif /* !defined(RSTRING_PTR) */
+#ifndef RSTRING_LEN
+#define RSTRING_LEN(s) (RSTRING(s)->len)
+#endif /* !defined(RSTRING_LEN) */
+
+#ifndef RUBINIUS
+#  define rb_str_update(x) do {} while (0)
+#  define rb_str_flush(x) do {} while (0)
+#endif /* !RUBINIUS */
+
+#ifndef HAVE_RB_STR_SET_LEN
+#  ifdef RUBINIUS
+#    define rb_str_set_len(str,len) rb_str_resize(str,len)
+#  else /* 1.8.6 optimized version */
+/* this is taken from Ruby 1.8.7, 1.8.6 may not have it */
+static void rb_18_str_set_len(VALUE str, long len)
+{
+  RSTRING(str)->len = len;
+  RSTRING(str)->ptr[len] = '\0';
+  rb_str_flush(str);
+}
+#    define rb_str_set_len(str,len) rb_18_str_set_len(str,len)
+#  endif /* ! RUBINIUS */
+#endif /* !defined(HAVE_RB_STR_SET_LEN) */
+
+/* not all Ruby implementations support frozen objects (Rubinius does not) */
+#if defined(OBJ_FROZEN)
+#  define assert_frozen(f) assert(OBJ_FROZEN(f) && "unfrozen object")
+#else
+#  define assert_frozen(f) do {} while (0)
+#endif /* !defined(OBJ_FROZEN) */
+
+#if !defined(OFFT2NUM)
+#  if SIZEOF_OFF_T == SIZEOF_LONG
+#    define OFFT2NUM(n) LONG2NUM(n)
+#  else
+#    define OFFT2NUM(n) LL2NUM(n)
+#  endif
+#endif /* ! defined(OFFT2NUM) */
+
+#ifndef HAVE_RB_STR_MODIFY
+#  define rb_str_modify(x) do {} while (0)
+#endif /* ! defined(HAVE_RB_STR_MODIFY) */
+
+static inline int str_cstr_eq(VALUE val, const char *ptr, size_t len)
+{
+  return (RSTRING_LEN(val) == len && !memcmp(ptr, RSTRING_PTR(val), len));
+}
+
+#define STR_CSTR_EQ(val, const_str) \
+  str_cstr_eq(val, const_str, sizeof(const_str) - 1)
+
+/* strcasecmp isn't locale independent */
+static int str_cstr_case_eq(VALUE val, const char *ptr, size_t len)
+{
+  if (RSTRING_LEN(val) == len) {
+    const char *v = RSTRING_PTR(val);
+
+    for (; len--; ++ptr, ++v) {
+      if ((*ptr == *v) || (*v >= 'A' && *v <= 'Z' && (*v | 0x20) == *ptr))
+        continue;
+      return 0;
+    }
+    return 1;
+  }
+  return 0;
+}
+
+#define STR_CSTR_CASE_EQ(val, const_str) \
+  str_cstr_case_eq(val, const_str, sizeof(const_str) - 1)
+
+#endif /* ext_help_h */