/* We can print the stacktrace, so our assert is defined this way: */
#define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
+#define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1)
static void _redisAssert(char *estr, char *file, int line);
+static void _redisPanic(char *msg, char *file, int line);
/*================================= Data types ============================== */
return createObject(REDIS_STRING,sdsnewlen(ptr,len));
}
+static robj *createStringObjectFromLongLong(long long value) {
+ robj *o;
+ if (value >= 0 && value < REDIS_SHARED_INTEGERS) {
+ incrRefCount(shared.integers[value]);
+ o = shared.integers[value];
+ } else {
+ o = createObject(REDIS_STRING, NULL);
+ if (value >= LONG_MIN && value <= LONG_MAX) {
+ o->encoding = REDIS_ENCODING_INT;
+ o->ptr = (void*)((long)value);
+ } else {
+ o->ptr = sdscatprintf(sdsempty(),"%lld",value);
+ }
+ }
+ return o;
+}
+
static robj *dupStringObject(robj *o) {
assert(o->encoding == REDIS_ENCODING_RAW);
return createStringObject(o->ptr,sdslen(o->ptr));
zfree(o->ptr);
break;
default:
- redisAssert(0);
+ redisPanic("Unknown hash encoding type");
break;
}
}
static void decrRefCount(void *obj) {
robj *o = obj;
+ if (o->refcount <= 0) redisPanic("decrRefCount against refcount <= 0");
/* Object is a key of a swapped out value, or in the process of being
* loaded. */
if (server.vm_enabled &&
case REDIS_SET: freeSetObject(o); break;
case REDIS_ZSET: freeZsetObject(o); break;
case REDIS_HASH: freeHashObject(o); break;
- default: redisAssert(0); break;
+ default: redisPanic("Unknown object type"); break;
}
if (server.vm_enabled) pthread_mutex_lock(&server.obj_freelist_mutex);
if (listLength(server.objfreelist) > REDIS_OBJFREELIST_MAX ||
dec = createStringObject(buf,strlen(buf));
return dec;
} else {
- redisAssert(1 != 1);
+ redisPanic("Unknown encoding type");
}
}
}
}
-static int getDoubleFromObject(redisClient *c, robj *o, double *value) {
- double parsedValue;
- char *eptr = NULL;
+static int getDoubleFromObject(robj *o, double *target) {
+ double value;
+ char *eptr;
- if (o && o->type != REDIS_STRING) {
- addReplySds(c,sdsnew("-ERR value is not a double\r\n"));
- return REDIS_ERR;
+ if (o == NULL) {
+ value = 0;
+ } else {
+ redisAssert(o->type == REDIS_STRING);
+ if (o->encoding == REDIS_ENCODING_RAW) {
+ value = strtod(o->ptr, &eptr);
+ if (eptr[0] != '\0') return REDIS_ERR;
+ } else if (o->encoding == REDIS_ENCODING_INT) {
+ value = (long)o->ptr;
+ } else {
+ redisAssert(1 != 1);
+ }
}
- if (o == NULL)
- parsedValue = 0;
- else if (o->encoding == REDIS_ENCODING_RAW)
- parsedValue = strtod(o->ptr, &eptr);
- else if (o->encoding == REDIS_ENCODING_INT)
- parsedValue = (long)o->ptr;
- else
- redisAssert(1 != 1);
+ *target = value;
+ return REDIS_OK;
+}
- if (eptr != NULL && *eptr != '\0') {
- addReplySds(c,sdsnew("-ERR value is not a double\r\n"));
+static int getDoubleFromObjectOrReply(redisClient *c, robj *o, double *target, const char *msg) {
+ double value;
+ if (getDoubleFromObject(o, &value) != REDIS_OK) {
+ if (msg != NULL) {
+ addReplySds(c, sdscatprintf(sdsempty(), "-ERR %s\r\n", msg));
+ } else {
+ addReplySds(c, sdsnew("-ERR value is not a double\r\n"));
+ }
return REDIS_ERR;
}
- *value = parsedValue;
-
+ *target = value;
return REDIS_OK;
}
-static int getLongLongFromObject(redisClient *c, robj *o, long long *value) {
- long long parsedValue;
- char *eptr = NULL;
+static int getLongLongFromObject(robj *o, long long *target) {
+ long long value;
+ char *eptr;
- if (o && o->type != REDIS_STRING) {
- addReplySds(c,sdsnew("-ERR value is not an integer\r\n"));
- return REDIS_ERR;
+ if (o == NULL) {
+ value = 0;
+ } else {
+ redisAssert(o->type == REDIS_STRING);
+ if (o->encoding == REDIS_ENCODING_RAW) {
+ value = strtoll(o->ptr, &eptr, 10);
+ if (eptr[0] != '\0') return REDIS_ERR;
+ } else if (o->encoding == REDIS_ENCODING_INT) {
+ value = (long)o->ptr;
+ } else {
+ redisAssert(1 != 1);
+ }
}
- if (o == NULL)
- parsedValue = 0;
- else if (o->encoding == REDIS_ENCODING_RAW)
- parsedValue = strtoll(o->ptr, &eptr, 10);
- else if (o->encoding == REDIS_ENCODING_INT)
- parsedValue = (long)o->ptr;
- else
- redisAssert(1 != 1);
+ *target = value;
+ return REDIS_OK;
+}
- if (eptr != NULL && *eptr != '\0') {
- addReplySds(c,sdsnew("-ERR value is not an integer\r\n"));
+static int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg) {
+ long long value;
+ if (getLongLongFromObject(o, &value) != REDIS_OK) {
+ if (msg != NULL) {
+ addReplySds(c, sdscatprintf(sdsempty(), "-ERR %s\r\n", msg));
+ } else {
+ addReplySds(c, sdsnew("-ERR value is not an integer\r\n"));
+ }
return REDIS_ERR;
}
- *value = parsedValue;
-
+ *target = value;
return REDIS_OK;
}
-static int getLongFromObject(redisClient *c, robj *o, long *value) {
- long long actualValue;
-
- if (getLongLongFromObject(c, o, &actualValue) != REDIS_OK) return REDIS_ERR;
+static int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg) {
+ long long value;
- if (actualValue < LONG_MIN || actualValue > LONG_MAX) {
- addReplySds(c,sdsnew("-ERR value is out of range\r\n"));
+ if (getLongLongFromObjectOrReply(c, o, &value, msg) != REDIS_OK) return REDIS_ERR;
+ if (value < LONG_MIN || value > LONG_MAX) {
+ if (msg != NULL) {
+ addReplySds(c, sdscatprintf(sdsempty(), "-ERR %s\r\n", msg));
+ } else {
+ addReplySds(c, sdsnew("-ERR value is out of range\r\n"));
+ }
return REDIS_ERR;
}
- *value = actualValue;
-
+ *target = value;
return REDIS_OK;
}
dictReleaseIterator(di);
}
} else {
- redisAssert(0);
+ redisPanic("Unknown object type");
}
return 0;
}
val = (int32_t)v;
} else {
val = 0; /* anti-warning */
- redisAssert(0);
+ redisPanic("Unknown RDB integer encoding type");
}
return createObject(REDIS_STRING,sdscatprintf(sdsempty(),"%lld",val));
}
case REDIS_RDB_ENC_LZF:
return rdbLoadLzfStringObject(fp);
default:
- redisAssert(0);
+ redisPanic("Unknown RDB encoding type");
}
}
}
}
} else {
- redisAssert(0);
+ redisPanic("Unknown object type");
}
return o;
}
o = lookupKeyWrite(c->db,c->argv[1]);
- if (getLongLongFromObject(c, o, &value) != REDIS_OK) return;
+ if (getLongLongFromObjectOrReply(c, o, &value, NULL) != REDIS_OK) return;
value += incr;
o = createObject(REDIS_STRING,sdscatprintf(sdsempty(),"%lld",value));
static void incrbyCommand(redisClient *c) {
long long incr;
- if (getLongLongFromObject(c, c->argv[2], &incr) != REDIS_OK) return;
-
+ if (getLongLongFromObjectOrReply(c, c->argv[2], &incr, NULL) != REDIS_OK) return;
incrDecrCommand(c,incr);
}
static void decrbyCommand(redisClient *c) {
long long incr;
- if (getLongLongFromObject(c, c->argv[2], &incr) != REDIS_OK) return;
-
+ if (getLongLongFromObjectOrReply(c, c->argv[2], &incr, NULL) != REDIS_OK) return;
incrDecrCommand(c,-incr);
}
static void zaddCommand(redisClient *c) {
double scoreval;
- if (getDoubleFromObject(c, c->argv[2], &scoreval) != REDIS_OK) return;
-
+ if (getDoubleFromObjectOrReply(c, c->argv[2], &scoreval, NULL) != REDIS_OK) return;
zaddGenericCommand(c,c->argv[1],c->argv[3],scoreval,0);
}
static void zincrbyCommand(redisClient *c) {
double scoreval;
- if (getDoubleFromObject(c, c->argv[2], &scoreval) != REDIS_OK) return;
-
+ if (getDoubleFromObjectOrReply(c, c->argv[2], &scoreval, NULL) != REDIS_OK) return;
zaddGenericCommand(c,c->argv[1],c->argv[3],scoreval,1);
}
robj *zsetobj;
zset *zs;
- if ((getDoubleFromObject(c, c->argv[2], &min) != REDIS_OK) ||
- (getDoubleFromObject(c, c->argv[3], &max) != REDIS_OK)) return;
+ if ((getDoubleFromObjectOrReply(c, c->argv[2], &min, NULL) != REDIS_OK) ||
+ (getDoubleFromObjectOrReply(c, c->argv[3], &max, NULL) != REDIS_OK)) return;
if ((zsetobj = lookupKeyWriteOrReply(c,c->argv[1],shared.czero)) == NULL ||
checkType(c,zsetobj,REDIS_ZSET)) return;
robj *zsetobj;
zset *zs;
- if ((getLongFromObject(c, c->argv[2], &start) != REDIS_OK) ||
- (getLongFromObject(c, c->argv[3], &end) != REDIS_OK)) return;
+ if ((getLongFromObjectOrReply(c, c->argv[2], &start, NULL) != REDIS_OK) ||
+ (getLongFromObjectOrReply(c, c->argv[3], &end, NULL) != REDIS_OK)) return;
if ((zsetobj = lookupKeyWriteOrReply(c,c->argv[1],shared.czero)) == NULL ||
checkType(c,zsetobj,REDIS_ZSET)) return;
*target = val > *target ? val : *target;
} else {
/* safety net */
- redisAssert(0 != 0);
+ redisPanic("Unknown ZUNION/INTER aggregate type");
}
}
if (remaining >= (zsetnum + 1) && !strcasecmp(c->argv[j]->ptr,"weights")) {
j++; remaining--;
for (i = 0; i < zsetnum; i++, j++, remaining--) {
- if (getDoubleFromObject(c, c->argv[j], &src[i].weight) != REDIS_OK)
+ if (getDoubleFromObjectOrReply(c, c->argv[j], &src[i].weight, NULL) != REDIS_OK)
return;
}
} else if (remaining >= 2 && !strcasecmp(c->argv[j]->ptr,"aggregate")) {
zskiplistNode *ln;
robj *ele;
- if ((getLongFromObject(c, c->argv[2], &start) != REDIS_OK) ||
- (getLongFromObject(c, c->argv[3], &end) != REDIS_OK)) return;
+ if ((getLongFromObjectOrReply(c, c->argv[2], &start, NULL) != REDIS_OK) ||
+ (getLongFromObjectOrReply(c, c->argv[3], &end, NULL) != REDIS_OK)) return;
if (c->argc == 5 && !strcasecmp(c->argv[4]->ptr,"withscores")) {
withscores = 1;
}
}
+/* Encode given objects in-place when the hash uses a dict. */
+static void hashTryObjectEncoding(robj *subject, robj **o1, robj **o2) {
+ if (subject->encoding == REDIS_ENCODING_HT) {
+ if (o1) *o1 = tryObjectEncoding(*o1);
+ if (o2) *o2 = tryObjectEncoding(*o2);
+ }
+}
+
/* Get the value from a hash identified by key. Returns either a string
* object or NULL if the value cannot be found. The refcount of the object
* is always increased by 1 when the value was found. */
if (zipmapLen(o->ptr) > server.hash_max_zipmap_entries)
convertToRealHash(o);
} else {
- value = tryObjectEncoding(value);
if (dictReplace(o->ptr,key,value)) {
/* Insert */
incrRefCount(key);
if ((o = hashLookupWriteOrCreate(c,c->argv[1])) == NULL) return;
hashTryConversion(o,c->argv,2,3);
+ hashTryObjectEncoding(o,&c->argv[2], &c->argv[3]);
update = hashSet(o,c->argv[2],c->argv[3]);
addReply(c, update ? shared.czero : shared.cone);
server.dirty++;
if (hashExists(o, c->argv[2])) {
addReply(c, shared.czero);
} else {
+ hashTryObjectEncoding(o,&c->argv[2], &c->argv[3]);
hashSet(o,c->argv[2],c->argv[3]);
addReply(c, shared.cone);
server.dirty++;
if ((o = hashLookupWriteOrCreate(c,c->argv[1])) == NULL) return;
hashTryConversion(o,c->argv,2,c->argc-1);
for (i = 2; i < c->argc; i += 2) {
+ hashTryObjectEncoding(o,&c->argv[i], &c->argv[i+1]);
hashSet(o,c->argv[i],c->argv[i+1]);
}
addReply(c, shared.ok);
+ server.dirty++;
}
static void hincrbyCommand(redisClient *c) {
long long value, incr;
robj *o, *current, *new;
- if (getLongLongFromObject(c,c->argv[3],&incr) != REDIS_OK) return;
+ if (getLongLongFromObjectOrReply(c,c->argv[3],&incr,NULL) != REDIS_OK) return;
if ((o = hashLookupWriteOrCreate(c,c->argv[1])) == NULL) return;
if ((current = hashGet(o,c->argv[2])) != NULL) {
if (current->encoding == REDIS_ENCODING_RAW)
}
value += incr;
- new = createObject(REDIS_STRING,sdscatprintf(sdsempty(),"%lld",value));
+ new = createStringObjectFromLongLong(value);
+ hashTryObjectEncoding(o,&c->argv[2],NULL);
hashSet(o,c->argv[2],new);
decrRefCount(new);
addReplyLongLong(c,value);
}
/* Return the value associated to the key with a name obtained
- * substituting the first occurence of '*' in 'pattern' with 'subst' */
+ * substituting the first occurence of '*' in 'pattern' with 'subst'.
+ * The returned object will always have its refcount increased by 1
+ * when it is non-NULL. */
static robj *lookupKeyByPattern(redisDb *db, robj *pattern, robj *subst) {
char *p, *f;
sds spat, ssub;
* to implement the "SORT ... GET #" feature. */
spat = pattern->ptr;
if (spat[0] == '#' && spat[1] == '\0') {
+ incrRefCount(subst);
return subst;
}
/* Lookup substituted key */
initStaticStringObject(keyobj,((char*)&keyname)+(sizeof(long)*2));
o = lookupKeyRead(db,&keyobj);
+ if (o == NULL) return NULL;
+
+ if (fieldlen > 0) {
+ if (o->type != REDIS_HASH || fieldname.len < 1) return NULL;
- if (o != NULL && fieldlen > 0) {
/* Retrieve value from hash by the field name. This operation
* already increases the refcount of the returned object. */
- if (o->type != REDIS_HASH || fieldname.len < 1) {
- return NULL;
- }
initStaticStringObject(fieldobj,((char*)&fieldname)+(sizeof(long)*2));
o = hashGet(o, &fieldobj);
} else {
- if (o->type != REDIS_STRING) {
- return NULL;
- }
+ if (o->type != REDIS_STRING) return NULL;
/* Every object that this function returns needs to have its refcount
* increased. sortCommand decreases it again. */
cmp = strcoll(so1->u.cmpobj->ptr,so2->u.cmpobj->ptr);
}
} else {
- /* Compare elements directly. Note that these objects already
- * need to be non-encoded (see sortCommand). */
- cmp = strcoll(so1->obj->ptr,so2->obj->ptr);
+ /* Compare elements directly. */
+ cmp = compareStringObjects(so1->obj,so2->obj);
}
}
return server.sort_desc ? -cmp : cmp;
case REDIS_LIST: vectorlen = listLength((list*)sortval->ptr); break;
case REDIS_SET: vectorlen = dictSize((dict*)sortval->ptr); break;
case REDIS_ZSET: vectorlen = dictSize(((zset*)sortval->ptr)->dict); break;
- default: vectorlen = 0; redisAssert(0); /* Avoid GCC warning */
+ default: vectorlen = 0; redisPanic("Bad SORT type"); /* Avoid GCC warning */
}
vector = zmalloc(sizeof(redisSortObject)*vectorlen);
j = 0;
}
if (alpha) {
- vector[j].u.cmpobj = getDecodedObject(byval);
+ if (sortby) vector[j].u.cmpobj = getDecodedObject(byval);
} else {
if (byval->encoding == REDIS_ENCODING_RAW) {
vector[j].u.score = strtod(byval->ptr,NULL);
vector[j].obj);
if (sop->type == REDIS_SORT_GET) {
- if (!val || val->type != REDIS_STRING) {
+ if (!val) {
addReply(c,shared.nullbulk);
} else {
addReplyBulk(c,val);
+ decrRefCount(val);
}
} else {
redisAssert(sop->type == REDIS_SORT_GET); /* always fails */
vector[j].obj);
if (sop->type == REDIS_SORT_GET) {
- if (!val || val->type != REDIS_STRING) {
+ if (!val) {
listAddNodeTail(listPtr,createStringObject("",0));
} else {
+ /* We should do a incrRefCount on val because it is
+ * added to the list, but also a decrRefCount because
+ * it is returned by lookupKeyByPattern. This results
+ * in doing nothing at all. */
listAddNodeTail(listPtr,val);
- incrRefCount(val);
}
} else {
redisAssert(sop->type == REDIS_SORT_GET); /* always fails */
dictEntry *de;
time_t seconds;
- if (getLongFromObject(c, param, &seconds) != REDIS_OK) return;
+ if (getLongFromObjectOrReply(c, param, &seconds, NULL) != REDIS_OK) return;
seconds -= offset;
addReply(c,shared.ok);
}
+/* Send a MULTI command to all the slaves and AOF file. Check the execCommand
+ * implememntation for more information. */
+static void execCommandReplicateMulti(redisClient *c) {
+ struct redisCommand *cmd;
+ robj *multistring = createStringObject("MULTI",5);
+
+ cmd = lookupCommand("multi");
+ if (server.appendonly)
+ feedAppendOnlyFile(cmd,c->db->id,&multistring,1);
+ if (listLength(server.slaves))
+ replicationFeedSlaves(server.slaves,c->db->id,&multistring,1);
+ decrRefCount(multistring);
+}
+
static void execCommand(redisClient *c) {
int j;
robj **orig_argv;
return;
}
+ /* Replicate a MULTI request now that we are sure the block is executed.
+ * This way we'll deliver the MULTI/..../EXEC block as a whole and
+ * both the AOF and the replication link will have the same consistency
+ * and atomicity guarantees. */
+ execCommandReplicateMulti(c);
+
+ /* Exec all the queued commands */
orig_argv = c->argv;
orig_argc = c->argc;
addReplySds(c,sdscatprintf(sdsempty(),"*%d\r\n",c->mstate.count));
freeClientMultiState(c);
initClientMultiState(c);
c->flags &= (~REDIS_MULTI);
+ /* Make sure the EXEC command is always replicated / AOF, since we
+ * always send the MULTI command (we can't know beforehand if the
+ * next operations will contain at least a modification to the DB). */
+ server.dirty++;
}
/* =========================== Blocking Operations ========================= */
dictReleaseIterator(di);
}
} else {
- redisAssert(0);
+ redisPanic("Unknown object type");
}
/* Save the expire time */
if (expiretime != -1) {
#endif
}
+static void _redisPanic(char *msg, char *file, int line) {
+ redisLog(REDIS_WARNING,"!!! Software Failure. Press left mouse button to continue");
+ redisLog(REDIS_WARNING,"Guru Meditation: %s #%s:%d",msg,file,line);
+#ifdef HAVE_BACKTRACE
+ redisLog(REDIS_WARNING,"(forcing SIGSEGV in order to print the stack trace)");
+ *((char*)-1) = 'x';
+#endif
+}
+
/* =================================== Main! ================================ */
#ifdef __linux__
void linuxOvercommitMemoryWarning(void) {
if (linuxOvercommitMemoryValue() == 0) {
- redisLog(REDIS_WARNING,"WARNING overcommit_memory is set to 0! Background save may fail under low condition memory. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.");
+ redisLog(REDIS_WARNING,"WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.");
}
}
#endif /* __linux__ */
projects / redis.git / blobdiff