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[CLEANUP] use distinct bits per load-balancing algorithm type

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It's useful to be able to check against an LB algorithm type by
testing just one bit.
This commit is contained in:
Willy Tarreau 2007-11-30 16:23:20 +01:00
parent 4689ae6e79
commit df36614b97
2 changed files with 19 additions and 9 deletions
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26
include/types/backend.h
View File

@ -24,14 +24,24 @@
#include <common/config.h>
/* Parameters for proxy->lbprm.algo. Those values are exclusive */
#define BE_LB_ALGO_RR 0x00000001 /* balance in round-robin mode */
#define BE_LB_ALGO_SH 0x00000002 /* balance on source IP hash */
#define BE_LB_ALGO_L4 0x00000003 /* mask to match layer4-based algorithms */
#define BE_LB_ALGO_UH 0x00000004 /* balance on URI hash */
#define BE_LB_ALGO_PH 0x00000005 /* balance on URL parameter hash */
#define BE_LB_ALGO_L7 0x00000004 /* mask to match layer7-based algorithms */
#define BE_LB_ALGO 0x00000007 /* mask to extract BALANCE algorithm */
/* Parameters for proxy->lbprm.algo.
* The low part of the value is unique for each algo so that applying the mask
* BE_LB_ALGO returns a unique algorithm.
* The high part indicates specific properties.
*/
/* Masks to extract algorithm properties */
#define BE_LB_ALGO 0x000007FF /* mask to extract all algorithm flags */
#define BE_LB_PROP_DYN 0x00000100 /* mask to match dynamic algorithms */
#define BE_LB_PROP_L4 0x00000200 /* mask to match layer4-based algorithms */
#define BE_LB_PROP_L7 0x00000400 /* mask to match layer7-based algorithms */
/* the algorithms themselves */
#define BE_LB_ALGO_NONE 0x00000000 /* dispatch or transparent mode */
#define BE_LB_ALGO_RR (BE_LB_PROP_DYN | 0x01) /* fast weighted round-robin mode (dynamic) */
#define BE_LB_ALGO_SH (BE_LB_PROP_L4 | 0x02) /* balance on source IP hash */
#define BE_LB_ALGO_UH (BE_LB_PROP_L7 | 0x03) /* balance on URI hash */
#define BE_LB_ALGO_PH (BE_LB_PROP_L7 | 0x04) /* balance on URL parameter hash */
/* various constants */
#define BE_WEIGHT_SCALE 256 /* scale between user weight and effective weight */

2
src/cfgparse.c
View File

@ -2531,7 +2531,7 @@ int readcfgfile(const char *file)
Warning("parsing %s : monitor-uri will be ignored for %s '%s'.\n",
file, proxy_type_str(curproxy), curproxy->id);
}
if (curproxy->lbprm.algo & BE_LB_ALGO_L7) {
if (curproxy->lbprm.algo & BE_LB_PROP_L7) {
curproxy->lbprm.algo &= ~BE_LB_ALGO;
curproxy->lbprm.algo |= BE_LB_ALGO_RR;