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VM hash type swappability implemented. Handling of failed pthread_create() call.

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This commit is contained in:
antirez 2010-03-19 18:02:37 +01:00
parent c77169b7e9
commit a97b906092
2 changed files with 39 additions and 4 deletions
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4
TODO
View File

@ -8,8 +8,6 @@ VERSION 2.0 TODO
* Save dataset / fsync() on SIGTERM
* MULTI/EXEC should support the "EXEC FSYNC" form?
* BLPOP & C. tests (write a non blocking Tcl client as first step)
* ZCOUNT sortedset min max
* ZRANK: http://docs.google.com/viewer?a=v&q=cache:tCQaP3ZeN4YJ:courses.csail.mit.edu/6.046/spring04/handouts/ps5-sol.pdf+skip+list+rank+operation+augmented&hl=en&pid=bl&srcid=ADGEEShXuNjTcZyXw_1cq9OaWpSXy3PprjXqVzmM-LE0ETFznLyrDXJKQ_mBPNT10R8ErkoiXD9JbMw_FaoHmOA4yoGVrA7tZWiy393JwfCwuewuP93sjbkzZ_gnEp83jYhPYjThaIzw&sig=AHIEtbRF0GkYCdYRFtTJBE69senXZwFY0w
* Once ZRANK is implemented, change the implementation of ZCOUNT to use the augmented skiplist in order to be much faster.
* Write doc for ZCOUNT, and for open / closed intervals of sorted sets range operations.
@ -29,7 +27,7 @@ Virtual Memory sub-TODO:
* Hashes (GET/SET/DEL/INCRBY/EXISTS/FIELDS/LEN/MSET/MGET). Special encoding for hashes with less than N elements.
* Write documentation for APPEND
* Implement LEN, SUBSTR, PEEK, POKE, SETBIT, GETBIT
* Implement LEN, PEEK, POKE, SETBIT, GETBIT
VERSION 2.2 TODO (Fault tolerant sharding)
===========================================

39
redis.c
View File

@ -8318,6 +8318,38 @@ static double computeObjectSwappability(robj *o) {
if (z) asize += sizeof(zskiplistNode)*dictSize(d);
}
break;
case REDIS_HASH:
if (o->encoding == REDIS_ENCODING_ZIPMAP) {
unsigned char *p = zipmapRewind((unsigned char*)o->ptr);
unsigned int len = zipmapLen((unsigned char*)o->ptr);
unsigned int klen, vlen;
unsigned char *key, *val;
if ((p = zipmapNext(p,&key,&klen,&val,&vlen)) == NULL) {
klen = 0;
vlen = 0;
}
asize = len*(klen+vlen+3);
} else if (o->encoding == REDIS_ENCODING_HT) {
d = o->ptr;
asize = sizeof(dict)+(sizeof(struct dictEntry*)*dictSlots(d));
if (dictSize(d)) {
long elesize;
robj *ele;
de = dictGetRandomKey(d);
ele = dictGetEntryKey(de);
elesize = (ele->encoding == REDIS_ENCODING_RAW) ?
(sizeof(*o)+sdslen(ele->ptr)) :
sizeof(*o);
ele = dictGetEntryVal(de);
elesize = (ele->encoding == REDIS_ENCODING_RAW) ?
(sizeof(*o)+sdslen(ele->ptr)) :
sizeof(*o);
asize += (sizeof(struct dictEntry)+elesize)*dictSize(d);
}
}
break;
}
return (double)age*log(1+asize);
}
@ -8720,13 +8752,18 @@ static void *IOThreadEntryPoint(void *arg) {
static void spawnIOThread(void) {
pthread_t thread;
sigset_t mask, omask;
int err;
sigemptyset(&mask);
sigaddset(&mask,SIGCHLD);
sigaddset(&mask,SIGHUP);
sigaddset(&mask,SIGPIPE);
pthread_sigmask(SIG_SETMASK, &mask, &omask);
pthread_create(&thread,&server.io_threads_attr,IOThreadEntryPoint,NULL);
while ((err = pthread_create(&thread,&server.io_threads_attr,IOThreadEntryPoint,NULL)) != 0) {
redisLog(REDIS_WARNING,"Unable to spawn an I/O thread: %s",
strerror(err));
usleep(1000000);
}
pthread_sigmask(SIG_SETMASK, &omask, NULL);
server.io_active_threads++;
}