proxygen::HTTPCommonHeadersInternal Class Reference

Static Public Member Functions
static const struct HTTPCommonHeaderName *	in_word_set (const char *str, unsigned int len)

Static Private Member Functions
static unsigned int	hash (const char *str, unsigned int len)

Detailed Description

Definition at line 111 of file HTTPCommonHeaders.cpp.

Member Function Documentation

unsigned int proxygen::HTTPCommonHeadersInternal::hash ( const char *  str, unsigned int  len  )

inlinestaticprivate

Definition at line 120 of file HTTPCommonHeaders.cpp.

References FOLLY_FALLTHROUGH.

{
  static const unsigned char asso_values[] =
    {
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134,   6, 134, 134, 134, 134,
      134, 134, 134,   6, 134, 134, 134, 134,  44, 134,
      134, 134, 134, 134, 134,   0, 134,   4,  32,   2,
       64,  58,  20,  17, 134,  77,  15,  31,  16,  39,
       51, 134,   8,   0,   2,  45,  59,  38,  10,  55,
       31, 134, 134, 134, 134, 134, 134,   0, 134,   4,
       32,   2,  64,  58,  20,  17, 134,  77,  15,  31,
       16,  39,  51, 134,   8,   0,   2,  45,  59,  38,
       10,  55,  31, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134, 134, 134, 134, 134,
      134, 134, 134, 134, 134, 134
    };
  register int hval = len;

  switch (hval)
    {
      default:
        hval += asso_values[(unsigned char)str[21]];
      FOLLY_FALLTHROUGH;
      case 21:
      case 20:
      case 19:
      case 18:
      case 17:
      case 16:
      case 15:
      case 14:
      case 13:
      case 12:
      case 11:
      case 10:
      case 9:
      case 8:
        hval += asso_values[(unsigned char)str[7]];
      FOLLY_FALLTHROUGH;
      case 7:
      case 6:
      case 5:
      case 4:
      case 3:
      case 2:
      case 1:
        hval += asso_values[(unsigned char)str[0]];
        break;
    }
  return hval + asso_values[(unsigned char)str[len - 1]];
}

const struct HTTPCommonHeaderName * proxygen::HTTPCommonHeadersInternal::in_word_set ( const char *  str, unsigned int  len  )

static

Definition at line 321 of file HTTPCommonHeaders.cpp.

References proxygen::gperf_case_memcmp(), proxygen::MIN_WORD_LENGTH, proxygen::HTTPCommonHeaderName::name, and s.

Referenced by proxygen::HTTPCommonHeaders::hash().

{
  if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
    {
      register int key = hash (str, len);

      if (key <= MAX_HASH_VALUE && key >= 0)
        if (len == lengthtable[key])
          {
            register const char *s = wordlist[key].name;

            if ((((unsigned char)*str ^ (unsigned char)*s) & ~32) == 0 && !gperf_case_memcmp (str, s, len))
              return &wordlist[key];
          }
    }
  return 0;
}

---

The documentation for this class was generated from the following file:

• proxygen/lib/http/HTTPCommonHeaders.cpp