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add helpful macros; add ISC_RESULTCLASS_DNSRCODE

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Bob Halley
1999-07-24 00:57:26 +00:00
parent 71d8c33fef
commit a0f6e78b74
1 changed files with 12 additions and 8 deletions
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20
lib/isc/include/isc/resultclass.h
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@@ -27,21 +27,25 @@ ISC_LANG_BEGINDECLS
*****/
/*
* A result class is an unsigned 16 bit number. Each class may contain up
* to 65536 results. A result is formed by adding the result number
* within the class to the class number.
* A result class number is an unsigned 16 bit number. Each class may
* contain up to 65536 results. A result code is formed by adding the
* result number within the class to the class number multiplied by 65536.
*/
#define ISC_RESULTCLASS(rclass) ((rclass) << 16)
#define ISC_RESULTCLASS_SIZE 65536
#define ISC_RESULTCLASS_FROMNUM(num) ((num) << 16)
#define ISC_RESULTCLASS_TONUM(rclass) ((rclass) >> 16)
#define ISC_RESULTCLASS_SIZE 65536
#define ISC_RESULTCLASS_INCLASS(rclass, result) \
((rclass) == ((result) & 0xFFFF0000))
/*
* Classes < 1024 are reserved for ISC use.
*/
#define ISC_RESULTCLASS_ISC ISC_RESULTCLASS(0)
#define ISC_RESULTCLASS_DNS ISC_RESULTCLASS(1)
#define ISC_RESULTCLASS_DST ISC_RESULTCLASS(2)
#define ISC_RESULTCLASS_ISC ISC_RESULTCLASS_FROMNUM(0)
#define ISC_RESULTCLASS_DNS ISC_RESULTCLASS_FROMNUM(1)
#define ISC_RESULTCLASS_DST ISC_RESULTCLASS_FROMNUM(2)
#define ISC_RESULTCLASS_DNSRCODE ISC_RESULTCLASS_FROMNUM(3)
/*
* Result classes >= 1024 and <= 65535 are reserved for application use.