http_response: implement httpdate in C
[unicorn.git] / ext / unicorn_http / ext_help.h
blob1f76f542effd51ef7fc32d980d8651f7ac16561c
1 #ifndef ext_help_h
2 #define ext_help_h
4 #ifndef RSTRING_PTR
5 #define RSTRING_PTR(s) (RSTRING(s)->ptr)
6 #endif /* !defined(RSTRING_PTR) */
7 #ifndef RSTRING_LEN
8 #define RSTRING_LEN(s) (RSTRING(s)->len)
9 #endif /* !defined(RSTRING_LEN) */
11 #ifndef HAVE_RB_STR_SET_LEN
12 # ifdef RUBINIUS
13 # error we should never get here with current Rubinius (1.x)
14 # endif
15 /* this is taken from Ruby 1.8.7, 1.8.6 may not have it */
16 static void rb_18_str_set_len(VALUE str, long len)
18 RSTRING(str)->len = len;
19 RSTRING(str)->ptr[len] = '\0';
21 # define rb_str_set_len(str,len) rb_18_str_set_len(str,len)
22 #endif /* !defined(HAVE_RB_STR_SET_LEN) */
24 /* not all Ruby implementations support frozen objects (Rubinius does not) */
25 #if defined(OBJ_FROZEN)
26 # define assert_frozen(f) assert(OBJ_FROZEN(f) && "unfrozen object")
27 #else
28 # define assert_frozen(f) do {} while (0)
29 #endif /* !defined(OBJ_FROZEN) */
31 #if !defined(OFFT2NUM)
32 # if SIZEOF_OFF_T == SIZEOF_LONG
33 # define OFFT2NUM(n) LONG2NUM(n)
34 # else
35 # define OFFT2NUM(n) LL2NUM(n)
36 # endif
37 #endif /* ! defined(OFFT2NUM) */
39 #ifndef HAVE_RB_STR_MODIFY
40 # define rb_str_modify(x) do {} while (0)
41 #endif /* ! defined(HAVE_RB_STR_MODIFY) */
43 static inline int str_cstr_eq(VALUE val, const char *ptr, long len)
45 return (RSTRING_LEN(val) == len && !memcmp(ptr, RSTRING_PTR(val), len));
48 #define STR_CSTR_EQ(val, const_str) \
49 str_cstr_eq(val, const_str, sizeof(const_str) - 1)
51 /* strcasecmp isn't locale independent */
52 static int str_cstr_case_eq(VALUE val, const char *ptr, long len)
54 if (RSTRING_LEN(val) == len) {
55 const char *v = RSTRING_PTR(val);
57 for (; len--; ++ptr, ++v) {
58 if ((*ptr == *v) || (*v >= 'A' && *v <= 'Z' && (*v | 0x20) == *ptr))
59 continue;
60 return 0;
62 return 1;
64 return 0;
67 #define STR_CSTR_CASE_EQ(val, const_str) \
68 str_cstr_case_eq(val, const_str, sizeof(const_str) - 1)
70 #endif /* ext_help_h */