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configure maximum number of entries in an intset

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This commit is contained in:
Pieter Noordhuis 2010-06-13 15:21:25 +02:00
parent b978abbf02
commit 70ff3511bc
1 changed files with 13 additions and 2 deletions

15
redis.c

@ -244,6 +244,7 @@ static char* strencoding[] = {
#define REDIS_HASH_MAX_ZIPMAP_VALUE 512
#define REDIS_LIST_MAX_ZIPLIST_ENTRIES 1024
#define REDIS_LIST_MAX_ZIPLIST_VALUE 32
#define REDIS_SET_MAX_INTSET_ENTRIES 4096
/* We can print the stacktrace, so our assert is defined this way: */
#define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
@ -434,6 +435,7 @@ struct redisServer {
size_t hash_max_zipmap_value;
size_t list_max_ziplist_entries;
size_t list_max_ziplist_value;
size_t set_max_intset_entries;
/* Virtual memory state */
FILE *vm_fp;
int vm_fd;
@ -1765,6 +1767,7 @@ static void initServerConfig() {
server.hash_max_zipmap_value = REDIS_HASH_MAX_ZIPMAP_VALUE;
server.list_max_ziplist_entries = REDIS_LIST_MAX_ZIPLIST_ENTRIES;
server.list_max_ziplist_value = REDIS_LIST_MAX_ZIPLIST_VALUE;
server.set_max_intset_entries = REDIS_SET_MAX_INTSET_ENTRIES;
server.shutdown_asap = 0;
resetServerSaveParams();
@ -2047,6 +2050,8 @@ static void loadServerConfig(char *filename) {
server.list_max_ziplist_entries = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"list-max-ziplist-value") && argc == 2){
server.list_max_ziplist_value = memtoll(argv[1], NULL);
} else if (!strcasecmp(argv[0],"set-max-intset-entries") && argc == 2){
server.set_max_intset_entries = memtoll(argv[1], NULL);
} else {
err = "Bad directive or wrong number of arguments"; goto loaderr;
}
@ -5508,9 +5513,15 @@ static int setTypeAdd(robj *subject, robj *value) {
}
} else if (subject->encoding == REDIS_ENCODING_INTSET) {
if (getLongLongFromObject(value,&llval) == REDIS_OK) {
uint8_t success;
uint8_t success = 0;
subject->ptr = intsetAdd(subject->ptr,llval,&success);
if (success) return 1;
if (success) {
/* Convert to regular set when the intset contains
* too many entries. */
if (intsetLen(subject->ptr) > server.set_max_intset_entries)
setTypeConvert(subject,REDIS_ENCODING_HT);
return 1;
}
} else {
/* Failed to get integer from object, convert to regular set. */
setTypeConvert(subject,REDIS_ENCODING_HT);