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Update hiredis

This commit is contained in:
Pieter Noordhuis 2011-04-19 23:07:36 +02:00
parent 5af302011c
commit 9703b1b3dc
15 changed files with 1188 additions and 180 deletions
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11
deps/hiredis/Makefile vendored
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@ -15,8 +15,9 @@ ifeq ($(uname_S),SunOS)
DYLIB_MAKE_CMD?=$(CC) -G -o ${DYLIBNAME} ${OBJ}
STLIBNAME?=libhiredis.a
STLIB_MAKE_CMD?=ar rcs ${STLIBNAME} ${OBJ}
else ifeq ($(uname_S),Darwin)
CFLAGS?=-std=c99 -pedantic $(OPTIMIZATION) -fPIC -Wall -W -Wwrite-strings $(ARCH) $(PROF)
else
ifeq ($(uname_S),Darwin)
CFLAGS?=-std=c99 -pedantic $(OPTIMIZATION) -fPIC -Wall -W -Wstrict-prototypes -Wwrite-strings $(ARCH) $(PROF)
CCLINK?=-lm -pthread
LDFLAGS?=-L. -Wl,-rpath,.
OBJARCH?=-arch i386 -arch x86_64
@ -25,7 +26,7 @@ else ifeq ($(uname_S),Darwin)
STLIBNAME?=libhiredis.a
STLIB_MAKE_CMD?=libtool -static -o ${STLIBNAME} - ${OBJ}
else
CFLAGS?=-std=c99 -pedantic $(OPTIMIZATION) -fPIC -Wall -W -Wwrite-strings $(ARCH) $(PROF)
CFLAGS?=-std=c99 -pedantic $(OPTIMIZATION) -fPIC -Wall -W -Wstrict-prototypes -Wwrite-strings $(ARCH) $(PROF)
CCLINK?=-lm -pthread
LDFLAGS?=-L. -Wl,-rpath,.
DYLIBNAME?=libhiredis.so
@ -33,6 +34,8 @@ else
STLIBNAME?=libhiredis.a
STLIB_MAKE_CMD?=ar rcs ${STLIBNAME} ${OBJ}
endif
endif
CCOPT= $(CFLAGS) $(CCLINK)
DEBUG?= -g -ggdb
@ -45,7 +48,7 @@ all: ${DYLIBNAME} ${BINS}
# Deps (use make dep to generate this)
net.o: net.c fmacros.h net.h
async.o: async.c async.h hiredis.h sds.h util.h
async.o: async.c async.h hiredis.h sds.h util.h dict.c dict.h
example.o: example.c hiredis.h
hiredis.o: hiredis.c hiredis.h net.h sds.h util.h
sds.o: sds.c sds.h

4
deps/hiredis/README.md vendored
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@ -108,7 +108,7 @@ was received:
* **`REDIS_REPLY_ARRAY`**:
* A multi bulk reply. The number of elements in the multi bulk reply is stored in
`reply->elements`. Every element in the multi bulk reply is a `redisReply` object as well
and can be accessed via `reply->elements[..index..]`.
and can be accessed via `reply->element[..index..]`.
Redis may reply with nested arrays but this is fully supported.
Replies should be freed using the `freeReplyObject()` function.
@ -171,7 +171,7 @@ the latter means an error occurred while reading a reply. Just as with the other
the `err` field in the context can be used to find out what the cause of this error is.
The following examples shows a simple pipeline (resulting in only a single call to `write(2)` and
a single call to `write(2)`):
a single call to `read(2)`):
redisReply *reply;
redisAppendCommand(context,"SET foo bar");

334
deps/hiredis/async.c vendored
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@ -30,14 +30,58 @@
*/
#include <string.h>
#include <strings.h>
#include <assert.h>
#include <ctype.h>
#include "async.h"
#include "dict.c"
#include "sds.h"
#include "util.h"
/* Forward declaration of function in hiredis.c */
void __redisAppendCommand(redisContext *c, char *cmd, size_t len);
/* Functions managing dictionary of callbacks for pub/sub. */
static unsigned int callbackHash(const void *key) {
return dictGenHashFunction((unsigned char*)key,sdslen((char*)key));
}
static void *callbackValDup(void *privdata, const void *src) {
((void) privdata);
redisCallback *dup = malloc(sizeof(*dup));
memcpy(dup,src,sizeof(*dup));
return dup;
}
static int callbackKeyCompare(void *privdata, const void *key1, const void *key2) {
int l1, l2;
((void) privdata);
l1 = sdslen((sds)key1);
l2 = sdslen((sds)key2);
if (l1 != l2) return 0;
return memcmp(key1,key2,l1) == 0;
}
static void callbackKeyDestructor(void *privdata, void *key) {
((void) privdata);
sdsfree((sds)key);
}
static void callbackValDestructor(void *privdata, void *val) {
((void) privdata);
free(val);
}
static dictType callbackDict = {
callbackHash,
NULL,
callbackValDup,
callbackKeyCompare,
callbackKeyDestructor,
callbackValDestructor
};
static redisAsyncContext *redisAsyncInitialize(redisContext *c) {
redisAsyncContext *ac = realloc(c,sizeof(redisAsyncContext));
c = &(ac->c);
@ -50,19 +94,23 @@ static redisAsyncContext *redisAsyncInitialize(redisContext *c) {
ac->err = 0;
ac->errstr = NULL;
ac->data = NULL;
ac->_adapter_data = NULL;
ac->evAddRead = NULL;
ac->evDelRead = NULL;
ac->evAddWrite = NULL;
ac->evDelWrite = NULL;
ac->evCleanup = NULL;
ac->ev.data = NULL;
ac->ev.addRead = NULL;
ac->ev.delRead = NULL;
ac->ev.addWrite = NULL;
ac->ev.delWrite = NULL;
ac->ev.cleanup = NULL;
ac->onConnect = NULL;
ac->onDisconnect = NULL;
ac->replies.head = NULL;
ac->replies.tail = NULL;
ac->sub.invalid.head = NULL;
ac->sub.invalid.tail = NULL;
ac->sub.channels = dictCreate(&callbackDict,NULL);
ac->sub.patterns = dictCreate(&callbackDict,NULL);
return ac;
}
@ -96,6 +144,11 @@ int redisAsyncSetReplyObjectFunctions(redisAsyncContext *ac, redisReplyObjectFun
int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn) {
if (ac->onConnect == NULL) {
ac->onConnect = fn;
/* The common way to detect an established connection is to wait for
* the first write event to be fired. This assumes the related event
* library functions are already set. */
if (ac->ev.addWrite) ac->ev.addWrite(ac->ev.data);
return REDIS_OK;
}
return REDIS_ERR;
@ -114,11 +167,11 @@ static int __redisPushCallback(redisCallbackList *list, redisCallback *source) {
redisCallback *cb;
/* Copy callback from stack to heap */
cb = calloc(1,sizeof(*cb));
cb = malloc(sizeof(*cb));
if (!cb) redisOOM();
if (source != NULL) {
cb->fn = source->fn;
cb->privdata = source->privdata;
memcpy(cb,source,sizeof(*cb));
cb->next = NULL;
}
/* Store callback in list */
@ -146,51 +199,150 @@ static int __redisShiftCallback(redisCallbackList *list, redisCallback *target)
return REDIS_ERR;
}
/* Tries to do a clean disconnect from Redis, meaning it stops new commands
* from being issued, but tries to flush the output buffer and execute
* callbacks for all remaining replies.
*
* This functions is generally called from within a callback, so the
* processCallbacks function will pick up the flag when there are no
* more replies. */
void redisAsyncDisconnect(redisAsyncContext *ac) {
static void __redisRunCallback(redisAsyncContext *ac, redisCallback *cb, redisReply *reply) {
redisContext *c = &(ac->c);
c->flags |= REDIS_DISCONNECTING;
if (cb->fn != NULL) {
c->flags |= REDIS_IN_CALLBACK;
cb->fn(ac,reply,cb->privdata);
c->flags &= ~REDIS_IN_CALLBACK;
}
}
/* Helper function to free the context. */
static void __redisAsyncFree(redisAsyncContext *ac) {
redisContext *c = &(ac->c);
redisCallback cb;
dictIterator *it;
dictEntry *de;
/* Execute pending callbacks with NULL reply. */
while (__redisShiftCallback(&ac->replies,&cb) == REDIS_OK)
__redisRunCallback(ac,&cb,NULL);
/* Execute callbacks for invalid commands */
while (__redisShiftCallback(&ac->sub.invalid,&cb) == REDIS_OK)
__redisRunCallback(ac,&cb,NULL);
/* Run subscription callbacks callbacks with NULL reply */
it = dictGetIterator(ac->sub.channels);
while ((de = dictNext(it)) != NULL)
__redisRunCallback(ac,dictGetEntryVal(de),NULL);
dictReleaseIterator(it);
dictRelease(ac->sub.channels);
it = dictGetIterator(ac->sub.patterns);
while ((de = dictNext(it)) != NULL)
__redisRunCallback(ac,dictGetEntryVal(de),NULL);
dictReleaseIterator(it);
dictRelease(ac->sub.patterns);
/* Signal event lib to clean up */
if (ac->ev.cleanup) ac->ev.cleanup(ac->ev.data);
/* Execute disconnect callback. When redisAsyncFree() initiated destroying
* this context, the status will always be REDIS_OK. */
if (ac->onDisconnect && (c->flags & REDIS_CONNECTED)) {
if (c->flags & REDIS_FREEING) {
ac->onDisconnect(ac,REDIS_OK);
} else {
ac->onDisconnect(ac,(ac->err == 0) ? REDIS_OK : REDIS_ERR);
}
}
/* Cleanup self */
redisFree(c);
}
/* Free the async context. When this function is called from a callback,
* control needs to be returned to redisProcessCallbacks() before actual
* free'ing. To do so, a flag is set on the context which is picked up by
* redisProcessCallbacks(). Otherwise, the context is immediately free'd. */
void redisAsyncFree(redisAsyncContext *ac) {
redisContext *c = &(ac->c);
c->flags |= REDIS_FREEING;
if (!(c->flags & REDIS_IN_CALLBACK))
__redisAsyncFree(ac);
}
/* Helper function to make the disconnect happen and clean up. */
static void __redisAsyncDisconnect(redisAsyncContext *ac) {
redisContext *c = &(ac->c);
redisCallback cb;
int status;
/* Make sure error is accessible if there is any */
__redisAsyncCopyError(ac);
status = (ac->err == 0) ? REDIS_OK : REDIS_ERR;
if (status == REDIS_OK) {
/* When the connection is cleanly disconnected, there should not
* be pending callbacks. */
if (ac->err == 0) {
/* For clean disconnects, there should be no pending callbacks. */
assert(__redisShiftCallback(&ac->replies,NULL) == REDIS_ERR);
} else {
/* Callbacks should not be able to issue new commands. */
/* Disconnection is caused by an error, make sure that pending
* callbacks cannot call new commands. */
c->flags |= REDIS_DISCONNECTING;
/* Execute pending callbacks with NULL reply. */
while (__redisShiftCallback(&ac->replies,&cb) == REDIS_OK) {
if (cb.fn != NULL)
cb.fn(ac,NULL,cb.privdata);
}
}
/* Signal event lib to clean up */
if (ac->evCleanup) ac->evCleanup(ac->_adapter_data);
/* For non-clean disconnects, __redisAsyncFree() will execute pending
* callbacks with a NULL-reply. */
__redisAsyncFree(ac);
}
/* Execute callback with proper status */
if (ac->onDisconnect) ac->onDisconnect(ac,status);
/* Tries to do a clean disconnect from Redis, meaning it stops new commands
* from being issued, but tries to flush the output buffer and execute
* callbacks for all remaining replies. When this function is called from a
* callback, there might be more replies and we can safely defer disconnecting
* to redisProcessCallbacks(). Otherwise, we can only disconnect immediately
* when there are no pending callbacks. */
void redisAsyncDisconnect(redisAsyncContext *ac) {
redisContext *c = &(ac->c);
c->flags |= REDIS_DISCONNECTING;
if (!(c->flags & REDIS_IN_CALLBACK) && ac->replies.head == NULL)
__redisAsyncDisconnect(ac);
}
/* Cleanup self */
redisFree(c);
static int __redisGetSubscribeCallback(redisAsyncContext *ac, redisReply *reply, redisCallback *dstcb) {
redisContext *c = &(ac->c);
dict *callbacks;
dictEntry *de;
int pvariant;
char *stype;
sds sname;
/* Custom reply functions are not supported for pub/sub. This will fail
* very hard when they are used... */
if (reply->type == REDIS_REPLY_ARRAY) {
assert(reply->elements >= 2);
assert(reply->element[0]->type == REDIS_REPLY_STRING);
stype = reply->element[0]->str;
pvariant = (tolower(stype[0]) == 'p') ? 1 : 0;
if (pvariant)
callbacks = ac->sub.patterns;
else
callbacks = ac->sub.channels;
/* Locate the right callback */
assert(reply->element[1]->type == REDIS_REPLY_STRING);
sname = sdsnewlen(reply->element[1]->str,reply->element[1]->len);
de = dictFind(callbacks,sname);
if (de != NULL) {
memcpy(dstcb,dictGetEntryVal(de),sizeof(*dstcb));
/* If this is an unsubscribe message, remove it. */
if (strcasecmp(stype+pvariant,"unsubscribe") == 0) {
dictDelete(callbacks,sname);
/* If this was the last unsubscribe message, revert to
* non-subscribe mode. */
assert(reply->element[2]->type == REDIS_REPLY_INTEGER);
if (reply->element[2]->integer == 0)
c->flags &= ~REDIS_SUBSCRIBED;
}
}
sdsfree(sname);
} else {
/* Shift callback for invalid commands. */
__redisShiftCallback(&ac->sub.invalid,dstcb);
}
return REDIS_OK;
}
void redisProcessCallbacks(redisAsyncContext *ac) {
@ -213,11 +365,28 @@ void redisProcessCallbacks(redisAsyncContext *ac) {
break;
}
/* Shift callback and execute it */
assert(__redisShiftCallback(&ac->replies,&cb) == REDIS_OK);
/* Even if the context is subscribed, pending regular callbacks will
* get a reply before pub/sub messages arrive. */
if (__redisShiftCallback(&ac->replies,&cb) != REDIS_OK) {
/* No more regular callbacks, the context *must* be subscribed. */
assert(c->flags & REDIS_SUBSCRIBED);
__redisGetSubscribeCallback(ac,reply,&cb);
}
if (cb.fn != NULL) {
cb.fn(ac,reply,cb.privdata);
__redisRunCallback(ac,&cb,reply);
c->fn->freeObject(reply);
/* Proceed with free'ing when redisAsyncFree() was called. */
if (c->flags & REDIS_FREEING) {
__redisAsyncFree(ac);
return;
}
} else {
/* No callback for this reply. This can either be a NULL callback,
* or there were no callbacks to begin with. Either way, don't
* abort with an error, but simply ignore it because the client
* doesn't know what the server will spit out over the wire. */
c->fn->freeObject(reply);
}
}
@ -237,7 +406,7 @@ void redisAsyncHandleRead(redisAsyncContext *ac) {
__redisAsyncDisconnect(ac);
} else {
/* Always re-schedule reads */
if (ac->evAddRead) ac->evAddRead(ac->_adapter_data);
if (ac->ev.addRead) ac->ev.addRead(ac->ev.data);
redisProcessCallbacks(ac);
}
}
@ -251,13 +420,13 @@ void redisAsyncHandleWrite(redisAsyncContext *ac) {
} else {
/* Continue writing when not done, stop writing otherwise */
if (!done) {
if (ac->evAddWrite) ac->evAddWrite(ac->_adapter_data);
if (ac->ev.addWrite) ac->ev.addWrite(ac->ev.data);
} else {
if (ac->evDelWrite) ac->evDelWrite(ac->_adapter_data);
if (ac->ev.delWrite) ac->ev.delWrite(ac->ev.data);
}
/* Always schedule reads after writes */
if (ac->evAddRead) ac->evAddRead(ac->_adapter_data);
if (ac->ev.addRead) ac->ev.addRead(ac->ev.data);
/* Fire onConnect when this is the first write event. */
if (!(c->flags & REDIS_CONNECTED)) {
@ -267,26 +436,81 @@ void redisAsyncHandleWrite(redisAsyncContext *ac) {
}
}
/* Helper function for the redisAsyncCommand* family of functions.
*
* Write a formatted command to the output buffer and register the provided
* callback function with the context.
*/
/* Sets a pointer to the first argument and its length starting at p. Returns
* the number of bytes to skip to get to the following argument. */
static char *nextArgument(char *start, char **str, size_t *len) {
char *p = start;
if (p[0] != '$') {
p = strchr(p,'$');
if (p == NULL) return NULL;
}
*len = (int)strtol(p+1,NULL,10);
p = strchr(p,'\r');
assert(p);
*str = p+2;
return p+2+(*len)+2;
}
/* Helper function for the redisAsyncCommand* family of functions. Writes a
* formatted command to the output buffer and registers the provided callback
* function with the context. */
static int __redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, char *cmd, size_t len) {
redisContext *c = &(ac->c);
redisCallback cb;
int pvariant, hasnext;
char *cstr, *astr;
size_t clen, alen;
char *p;
sds sname;
/* Don't accept new commands when the connection is lazily closed. */
if (c->flags & REDIS_DISCONNECTING) return REDIS_ERR;
__redisAppendCommand(c,cmd,len);
/* Don't accept new commands when the connection is about to be closed. */
if (c->flags & (REDIS_DISCONNECTING | REDIS_FREEING)) return REDIS_ERR;
/* Store callback */
/* Setup callback */
cb.fn = fn;
cb.privdata = privdata;
__redisPushCallback(&ac->replies,&cb);
/* Find out which command will be appended. */
p = nextArgument(cmd,&cstr,&clen);
assert(p != NULL);
hasnext = (p[0] == '$');
pvariant = (tolower(cstr[0]) == 'p') ? 1 : 0;
cstr += pvariant;
clen -= pvariant;
if (hasnext && strncasecmp(cstr,"subscribe\r\n",11) == 0) {
c->flags |= REDIS_SUBSCRIBED;
/* Add every channel/pattern to the list of subscription callbacks. */
while ((p = nextArgument(p,&astr,&alen)) != NULL) {
sname = sdsnewlen(astr,alen);
if (pvariant)
dictReplace(ac->sub.patterns,sname,&cb);
else
dictReplace(ac->sub.channels,sname,&cb);
}
} else if (strncasecmp(cstr,"unsubscribe\r\n",13) == 0) {
/* It is only useful to call (P)UNSUBSCRIBE when the context is
* subscribed to one or more channels or patterns. */
if (!(c->flags & REDIS_SUBSCRIBED)) return REDIS_ERR;
/* (P)UNSUBSCRIBE does not have its own response: every channel or
* pattern that is unsubscribed will receive a message. This means we
* should not append a callback function for this command. */
} else {
if (c->flags & REDIS_SUBSCRIBED)
/* This will likely result in an error reply, but it needs to be
* received and passed to the callback. */
__redisPushCallback(&ac->sub.invalid,&cb);
else
__redisPushCallback(&ac->replies,&cb);
}
__redisAppendCommand(c,cmd,len);
/* Always schedule a write when the write buffer is non-empty */
if (ac->evAddWrite) ac->evAddWrite(ac->_adapter_data);
if (ac->ev.addWrite) ac->ev.addWrite(ac->ev.data);
return REDIS_OK;
}

34
deps/hiredis/async.h vendored
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@ -1,5 +1,7 @@
/*
* Copyright (c) 2009-2010, Salvatore Sanfilippo <antirez at gmail dot com>
* Copyright (c) 2010, Pieter Noordhuis <pcnoordhuis at gmail dot com>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -36,6 +38,7 @@ extern "C" {
#endif
struct redisAsyncContext; /* need forward declaration of redisAsyncContext */
struct dict; /* dictionary header is included in async.c */
/* Reply callback prototype and container */
typedef void (redisCallbackFn)(struct redisAsyncContext*, void*, void*);
@ -66,16 +69,18 @@ typedef struct redisAsyncContext {
/* Not used by hiredis */
void *data;
/* Used by the different event lib adapters to store their private data */
void *_adapter_data;
/* Event library data and hooks */
struct {
void *data;
/* Called when the library expects to start reading/writing.
* The supplied functions should be idempotent. */
void (*evAddRead)(void *privdata);
void (*evDelRead)(void *privdata);
void (*evAddWrite)(void *privdata);
void (*evDelWrite)(void *privdata);
void (*evCleanup)(void *privdata);
/* Hooks that are called when the library expects to start
* reading/writing. These functions should be idempotent. */
void (*addRead)(void *privdata);
void (*delRead)(void *privdata);
void (*addWrite)(void *privdata);
void (*delWrite)(void *privdata);
void (*cleanup)(void *privdata);
} ev;
/* Called when either the connection is terminated due to an error or per
* user request. The status is set accordingly (REDIS_OK, REDIS_ERR). */
@ -84,16 +89,25 @@ typedef struct redisAsyncContext {
/* Called when the first write event was received. */
redisConnectCallback *onConnect;
/* Reply callbacks */
/* Regular command callbacks */
redisCallbackList replies;
/* Subscription callbacks */
struct {
redisCallbackList invalid;
struct dict *channels;
struct dict *patterns;
} sub;
} redisAsyncContext;
/* Functions that proxy to hiredis */
redisAsyncContext *redisAsyncConnect(const char *ip, int port);
redisAsyncContext *redisAsyncConnectUnix(const char *path);
int redisAsyncSetReplyObjectFunctions(redisAsyncContext *ac, redisReplyObjectFunctions *fn);
int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn);
int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn);
void redisAsyncDisconnect(redisAsyncContext *ac);
void redisAsyncFree(redisAsyncContext *ac);
/* Handle read/write events */
void redisAsyncHandleRead(redisAsyncContext *ac);

338
deps/hiredis/dict.c vendored Normal file
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@ -0,0 +1,338 @@
/* Hash table implementation.
*
* This file implements in memory hash tables with insert/del/replace/find/
* get-random-element operations. Hash tables will auto resize if needed
* tables of power of two in size are used, collisions are handled by
* chaining. See the source code for more information... :)
*
* Copyright (c) 2006-2010, Salvatore Sanfilippo <antirez at gmail dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "fmacros.h"
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include "dict.h"
/* -------------------------- private prototypes ---------------------------- */
static int _dictExpandIfNeeded(dict *ht);
static unsigned long _dictNextPower(unsigned long size);
static int _dictKeyIndex(dict *ht, const void *key);
static int _dictInit(dict *ht, dictType *type, void *privDataPtr);
/* -------------------------- hash functions -------------------------------- */
/* Generic hash function (a popular one from Bernstein).
* I tested a few and this was the best. */
static unsigned int dictGenHashFunction(const unsigned char *buf, int len) {
unsigned int hash = 5381;
while (len--)
hash = ((hash << 5) + hash) + (*buf++); /* hash * 33 + c */
return hash;
}
/* ----------------------------- API implementation ------------------------- */
/* Reset an hashtable already initialized with ht_init().
* NOTE: This function should only called by ht_destroy(). */
static void _dictReset(dict *ht) {
ht->table = NULL;
ht->size = 0;
ht->sizemask = 0;
ht->used = 0;
}
/* Create a new hash table */
static dict *dictCreate(dictType *type, void *privDataPtr) {
dict *ht = malloc(sizeof(*ht));
_dictInit(ht,type,privDataPtr);
return ht;
}
/* Initialize the hash table */
static int _dictInit(dict *ht, dictType *type, void *privDataPtr) {
_dictReset(ht);
ht->type = type;
ht->privdata = privDataPtr;
return DICT_OK;
}
/* Expand or create the hashtable */
static int dictExpand(dict *ht, unsigned long size) {
dict n; /* the new hashtable */
unsigned long realsize = _dictNextPower(size), i;
/* the size is invalid if it is smaller than the number of
* elements already inside the hashtable */
if (ht->used > size)
return DICT_ERR;
_dictInit(&n, ht->type, ht->privdata);
n.size = realsize;
n.sizemask = realsize-1;
n.table = calloc(realsize,sizeof(dictEntry*));
/* Copy all the elements from the old to the new table:
* note that if the old hash table is empty ht->size is zero,
* so dictExpand just creates an hash table. */
n.used = ht->used;
for (i = 0; i < ht->size && ht->used > 0; i++) {
dictEntry *he, *nextHe;
if (ht->table[i] == NULL) continue;
/* For each hash entry on this slot... */
he = ht->table[i];
while(he) {
unsigned int h;
nextHe = he->next;
/* Get the new element index */
h = dictHashKey(ht, he->key) & n.sizemask;
he->next = n.table[h];
n.table[h] = he;
ht->used--;
/* Pass to the next element */
he = nextHe;
}
}
assert(ht->used == 0);
free(ht->table);
/* Remap the new hashtable in the old */
*ht = n;
return DICT_OK;
}
/* Add an element to the target hash table */
static int dictAdd(dict *ht, void *key, void *val) {
int index;
dictEntry *entry;
/* Get the index of the new element, or -1 if
* the element already exists. */
if ((index = _dictKeyIndex(ht, key)) == -1)
return DICT_ERR;
/* Allocates the memory and stores key */
entry = malloc(sizeof(*entry));
entry->next = ht->table[index];
ht->table[index] = entry;
/* Set the hash entry fields. */
dictSetHashKey(ht, entry, key);
dictSetHashVal(ht, entry, val);
ht->used++;
return DICT_OK;
}
/* Add an element, discarding the old if the key already exists.
* Return 1 if the key was added from scratch, 0 if there was already an
* element with such key and dictReplace() just performed a value update
* operation. */
static int dictReplace(dict *ht, void *key, void *val) {
dictEntry *entry, auxentry;
/* Try to add the element. If the key
* does not exists dictAdd will suceed. */
if (dictAdd(ht, key, val) == DICT_OK)
return 1;
/* It already exists, get the entry */
entry = dictFind(ht, key);
/* Free the old value and set the new one */
/* Set the new value and free the old one. Note that it is important
* to do that in this order, as the value may just be exactly the same
* as the previous one. In this context, think to reference counting,
* you want to increment (set), and then decrement (free), and not the
* reverse. */
auxentry = *entry;
dictSetHashVal(ht, entry, val);
dictFreeEntryVal(ht, &auxentry);
return 0;
}
/* Search and remove an element */
static int dictDelete(dict *ht, const void *key) {
unsigned int h;
dictEntry *de, *prevde;
if (ht->size == 0)
return DICT_ERR;
h = dictHashKey(ht, key) & ht->sizemask;
de = ht->table[h];
prevde = NULL;
while(de) {
if (dictCompareHashKeys(ht,key,de->key)) {
/* Unlink the element from the list */
if (prevde)
prevde->next = de->next;
else
ht->table[h] = de->next;
dictFreeEntryKey(ht,de);
dictFreeEntryVal(ht,de);
free(de);
ht->used--;
return DICT_OK;
}
prevde = de;
de = de->next;
}
return DICT_ERR; /* not found */
}
/* Destroy an entire hash table */
static int _dictClear(dict *ht) {
unsigned long i;
/* Free all the elements */
for (i = 0; i < ht->size && ht->used > 0; i++) {
dictEntry *he, *nextHe;
if ((he = ht->table[i]) == NULL) continue;
while(he) {
nextHe = he->next;
dictFreeEntryKey(ht, he);
dictFreeEntryVal(ht, he);
free(he);
ht->used--;
he = nextHe;
}
}
/* Free the table and the allocated cache structure */
free(ht->table);
/* Re-initialize the table */
_dictReset(ht);
return DICT_OK; /* never fails */
}
/* Clear & Release the hash table */
static void dictRelease(dict *ht) {
_dictClear(ht);
free(ht);
}
static dictEntry *dictFind(dict *ht, const void *key) {
dictEntry *he;
unsigned int h;
if (ht->size == 0) return NULL;
h = dictHashKey(ht, key) & ht->sizemask;
he = ht->table[h];
while(he) {
if (dictCompareHashKeys(ht, key, he->key))
return he;
he = he->next;
}
return NULL;
}
static dictIterator *dictGetIterator(dict *ht) {
dictIterator *iter = malloc(sizeof(*iter));
iter->ht = ht;
iter->index = -1;
iter->entry = NULL;
iter->nextEntry = NULL;
return iter;
}
static dictEntry *dictNext(dictIterator *iter) {
while (1) {
if (iter->entry == NULL) {
iter->index++;
if (iter->index >=
(signed)iter->ht->size) break;
iter->entry = iter->ht->table[iter->index];
} else {
iter->entry = iter->nextEntry;
}
if (iter->entry) {
/* We need to save the 'next' here, the iterator user
* may delete the entry we are returning. */
iter->nextEntry = iter->entry->next;
return iter->entry;
}
}
return NULL;
}
static void dictReleaseIterator(dictIterator *iter) {
free(iter);
}
/* ------------------------- private functions ------------------------------ */
/* Expand the hash table if needed */
static int _dictExpandIfNeeded(dict *ht) {
/* If the hash table is empty expand it to the intial size,
* if the table is "full" dobule its size. */
if (ht->size == 0)
return dictExpand(ht, DICT_HT_INITIAL_SIZE);
if (ht->used == ht->size)
return dictExpand(ht, ht->size*2);
return DICT_OK;
}
/* Our hash table capability is a power of two */
static unsigned long _dictNextPower(unsigned long size) {
unsigned long i = DICT_HT_INITIAL_SIZE;
if (size >= LONG_MAX) return LONG_MAX;
while(1) {
if (i >= size)
return i;
i *= 2;
}
}
/* Returns the index of a free slot that can be populated with
* an hash entry for the given 'key'.
* If the key already exists, -1 is returned. */
static int _dictKeyIndex(dict *ht, const void *key) {
unsigned int h;
dictEntry *he;
/* Expand the hashtable if needed */
if (_dictExpandIfNeeded(ht) == DICT_ERR)
return -1;
/* Compute the key hash value */
h = dictHashKey(ht, key) & ht->sizemask;
/* Search if this slot does not already contain the given key */
he = ht->table[h];
while(he) {
if (dictCompareHashKeys(ht, key, he->key))
return -1;
he = he->next;
}
return h;
}

126
deps/hiredis/dict.h vendored Normal file
View File

@ -0,0 +1,126 @@
/* Hash table implementation.
*
* This file implements in memory hash tables with insert/del/replace/find/
* get-random-element operations. Hash tables will auto resize if needed
* tables of power of two in size are used, collisions are handled by
* chaining. See the source code for more information... :)
*
* Copyright (c) 2006-2010, Salvatore Sanfilippo <antirez at gmail dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DICT_H
#define __DICT_H
#define DICT_OK 0
#define DICT_ERR 1
/* Unused arguments generate annoying warnings... */
#define DICT_NOTUSED(V) ((void) V)
typedef struct dictEntry {
void *key;
void *val;
struct dictEntry *next;
} dictEntry;
typedef struct dictType {
unsigned int (*hashFunction)(const void *key);
void *(*keyDup)(void *privdata, const void *key);
void *(*valDup)(void *privdata, const void *obj);
int (*keyCompare)(void *privdata, const void *key1, const void *key2);
void (*keyDestructor)(void *privdata, void *key);
void (*valDestructor)(void *privdata, void *obj);
} dictType;
typedef struct dict {
dictEntry **table;
dictType *type;
unsigned long size;
unsigned long sizemask;
unsigned long used;
void *privdata;
} dict;
typedef struct dictIterator {
dict *ht;
int index;
dictEntry *entry, *nextEntry;
} dictIterator;
/* This is the initial size of every hash table */
#define DICT_HT_INITIAL_SIZE 4
/* ------------------------------- Macros ------------------------------------*/
#define dictFreeEntryVal(ht, entry) \
if ((ht)->type->valDestructor) \
(ht)->type->valDestructor((ht)->privdata, (entry)->val)
#define dictSetHashVal(ht, entry, _val_) do { \
if ((ht)->type->valDup) \
entry->val = (ht)->type->valDup((ht)->privdata, _val_); \
else \
entry->val = (_val_); \
} while(0)
#define dictFreeEntryKey(ht, entry) \
if ((ht)->type->keyDestructor) \
(ht)->type->keyDestructor((ht)->privdata, (entry)->key)
#define dictSetHashKey(ht, entry, _key_) do { \
if ((ht)->type->keyDup) \
entry->key = (ht)->type->keyDup((ht)->privdata, _key_); \
else \
entry->key = (_key_); \
} while(0)
#define dictCompareHashKeys(ht, key1, key2) \
(((ht)->type->keyCompare) ? \
(ht)->type->keyCompare((ht)->privdata, key1, key2) : \
(key1) == (key2))
#define dictHashKey(ht, key) (ht)->type->hashFunction(key)
#define dictGetEntryKey(he) ((he)->key)
#define dictGetEntryVal(he) ((he)->val)
#define dictSlots(ht) ((ht)->size)
#define dictSize(ht) ((ht)->used)
/* API */
static unsigned int dictGenHashFunction(const unsigned char *buf, int len);
static dict *dictCreate(dictType *type, void *privDataPtr);
static int dictExpand(dict *ht, unsigned long size);
static int dictAdd(dict *ht, void *key, void *val);
static int dictReplace(dict *ht, void *key, void *val);
static int dictDelete(dict *ht, const void *key);
static void dictRelease(dict *ht);
static dictEntry * dictFind(dict *ht, const void *key);
static dictIterator *dictGetIterator(dict *ht);
static dictEntry *dictNext(dictIterator *iter);
static void dictReleaseIterator(dictIterator *iter);
#endif /* __DICT_H */

3
deps/hiredis/example.c vendored
View File

@ -9,7 +9,8 @@ int main(void) {
redisContext *c;
redisReply *reply;
c = redisConnect((char*)"127.0.0.1", 6379);
struct timeval timeout = { 1, 500000 }; // 1.5 seconds
c = redisConnectWithTimeout((char*)"127.0.0.2", 6379, timeout);
if (c->err) {
printf("Connection error: %s\n", c->errstr);
exit(1);

9
deps/hiredis/fmacros.h vendored
View File

@ -1,7 +1,9 @@
#ifndef _REDIS_FMACRO_H
#define _REDIS_FMACRO_H
#ifndef __HIREDIS_FMACRO_H
#define __HIREDIS_FMACRO_H
#ifndef _BSD_SOURCE
#define _BSD_SOURCE
#endif
#ifdef __linux__
#define _XOPEN_SOURCE 700
@ -9,7 +11,4 @@
#define _XOPEN_SOURCE
#endif
#define _LARGEFILE_SOURCE
#define _FILE_OFFSET_BITS 64
#endif

123
deps/hiredis/hiredis.c vendored
View File

@ -271,14 +271,17 @@ static int processLineItem(redisReader *r) {
int len;
if ((p = readLine(r,&len)) != NULL) {
if (r->fn) {
if (cur->type == REDIS_REPLY_INTEGER) {
if (cur->type == REDIS_REPLY_INTEGER) {
if (r->fn && r->fn->createInteger)
obj = r->fn->createInteger(cur,readLongLong(p));
} else {
obj = r->fn->createString(cur,p,len);
}
else
obj = (void*)REDIS_REPLY_INTEGER;
} else {
obj = (void*)(size_t)(cur->type);
/* Type will be error or status. */
if (r->fn && r->fn->createString)
obj = r->fn->createString(cur,p,len);
else
obj = (void*)(size_t)(cur->type);
}
/* Set reply if this is the root object. */
@ -306,15 +309,19 @@ static int processBulkItem(redisReader *r) {
if (len < 0) {
/* The nil object can always be created. */
obj = r->fn ? r->fn->createNil(cur) :
(void*)REDIS_REPLY_NIL;
if (r->fn && r->fn->createNil)
obj = r->fn->createNil(cur);
else
obj = (void*)REDIS_REPLY_NIL;
success = 1;
} else {
/* Only continue when the buffer contains the entire bulk item. */
bytelen += len+2; /* include \r\n */
if (r->pos+bytelen <= r->len) {
obj = r->fn ? r->fn->createString(cur,s+2,len) :
(void*)REDIS_REPLY_STRING;
if (r->fn && r->fn->createString)
obj = r->fn->createString(cur,s+2,len);
else
obj = (void*)REDIS_REPLY_STRING;
success = 1;
}
}
@ -351,12 +358,16 @@ static int processMultiBulkItem(redisReader *r) {
root = (r->ridx == 0);
if (elements == -1) {
obj = r->fn ? r->fn->createNil(cur) :
(void*)REDIS_REPLY_NIL;
if (r->fn && r->fn->createNil)
obj = r->fn->createNil(cur);
else
obj = (void*)REDIS_REPLY_NIL;
moveToNextTask(r);
} else {
obj = r->fn ? r->fn->createArray(cur,elements) :
(void*)REDIS_REPLY_ARRAY;
if (r->fn && r->fn->createArray)
obj = r->fn->createArray(cur,elements);
else
obj = (void*)REDIS_REPLY_ARRAY;
/* Modify task stack when there are more than 0 elements. */
if (elements > 0) {
@ -434,7 +445,7 @@ static int processItem(redisReader *r) {
}
}
void *redisReplyReaderCreate() {
void *redisReplyReaderCreate(void) {
redisReader *r = calloc(sizeof(redisReader),1);
r->error = NULL;
r->fn = &defaultFunctions;
@ -493,7 +504,7 @@ static void redisSetReplyReaderError(redisReader *r, sds err) {
if (r->buf != NULL) {
sdsfree(r->buf);
r->buf = sdsempty();
r->pos = 0;
r->pos = r->len = 0;
}
r->ridx = -1;
r->error = err;
@ -504,11 +515,18 @@ char *redisReplyReaderGetError(void *reader) {
return r->error;
}
void redisReplyReaderFeed(void *reader, char *buf, size_t len) {
void redisReplyReaderFeed(void *reader, const char *buf, size_t len) {
redisReader *r = reader;
/* Copy the provided buffer. */
if (buf != NULL && len >= 1) {
/* Destroy internal buffer when it is empty and is quite large. */
if (r->len == 0 && sdsavail(r->buf) > 16*1024) {
sdsfree(r->buf);
r->buf = sdsempty();
r->pos = 0;
}
r->buf = sdscatlen(r->buf,buf,len);
r->len = sdslen(r->buf);
}
@ -538,15 +556,10 @@ int redisReplyReaderGetReply(void *reader, void **reply) {
if (processItem(r) < 0)
break;
/* Discard the consumed part of the buffer. */
if (r->pos > 0) {
if (r->pos == r->len) {
/* sdsrange has a quirck on this edge case. */
sdsfree(r->buf);
r->buf = sdsempty();
} else {
r->buf = sdsrange(r->buf,r->pos,r->len);
}
/* Discard part of the buffer when we've consumed at least 1k, to avoid
* doing unnecessary calls to memmove() in sds.c. */
if (r->pos >= 1024) {
r->buf = sdsrange(r->buf,r->pos,-1);
r->pos = 0;
r->len = sdslen(r->buf);
}
@ -556,13 +569,6 @@ int redisReplyReaderGetReply(void *reader, void **reply) {
void *aux = r->reply;
r->reply = NULL;
/* Destroy the buffer when it is empty and is quite large. */
if (r->len == 0 && sdsavail(r->buf) > 16*1024) {
sdsfree(r->buf);
r->buf = sdsempty();
r->pos = 0;
}
/* Check if there actually *is* a reply. */
if (r->error != NULL) {
return REDIS_ERR;
@ -601,7 +607,7 @@ int redisvFormatCommand(char **target, const char *format, va_list ap) {
char *cmd = NULL; /* final command */
int pos; /* position in final command */
sds current; /* current argument */
int interpolated = 0; /* did we do interpolation on an argument? */
int touched = 0; /* was the current argument touched? */
char **argv = NULL;
int argc = 0, j;
int totlen = 0;
@ -615,13 +621,14 @@ int redisvFormatCommand(char **target, const char *format, va_list ap) {
while(*c != '\0') {
if (*c != '%' || c[1] == '\0') {
if (*c == ' ') {
if (sdslen(current) != 0) {
if (touched) {
addArgument(current, &argv, &argc, &totlen);
current = sdsempty();
interpolated = 0;
touched = 0;
}
} else {
current = sdscatlen(current,c,1);
touched = 1;
}
} else {
switch(c[1]) {
@ -630,14 +637,12 @@ int redisvFormatCommand(char **target, const char *format, va_list ap) {
size = strlen(arg);
if (size > 0)
current = sdscatlen(current,arg,size);
interpolated = 1;
break;
case 'b':
arg = va_arg(ap,char*);
size = va_arg(ap,size_t);
if (size > 0)
current = sdscatlen(current,arg,size);
interpolated = 1;
break;
case '%':
current = sdscat(current,"%");
@ -683,7 +688,6 @@ int redisvFormatCommand(char **target, const char *format, va_list ap) {
_format[_l] = '\0';
va_copy(_cpy,ap);
current = sdscatvprintf(current,_format,_cpy);
interpolated = 1;
va_end(_cpy);
/* Update current position (note: outer blocks
@ -696,13 +700,14 @@ int redisvFormatCommand(char **target, const char *format, va_list ap) {
va_arg(ap,void);
}
}
touched = 1;
c++;
}
c++;
}
/* Add the last argument if needed */
if (interpolated || sdslen(current) != 0) {
if (touched) {
addArgument(current, &argv, &argc, &totlen);
} else {
sdsfree(current);
@ -798,7 +803,7 @@ void __redisSetError(redisContext *c, int type, const sds errstr) {
}
}
static redisContext *redisContextInit() {
static redisContext *redisContextInit(void) {
redisContext *c = calloc(sizeof(redisContext),1);
c->err = 0;
c->errstr = NULL;
@ -809,8 +814,7 @@ static redisContext *redisContextInit() {
}
void redisFree(redisContext *c) {
/* Disconnect before free'ing if not yet disconnected. */
if (c->flags & REDIS_CONNECTED)
if (c->fd > 0)
close(c->fd);
if (c->errstr != NULL)
sdsfree(c->errstr);
@ -827,31 +831,52 @@ void redisFree(redisContext *c) {
redisContext *redisConnect(const char *ip, int port) {
redisContext *c = redisContextInit();
c->flags |= REDIS_BLOCK;
redisContextConnectTcp(c,ip,port);
redisContextConnectTcp(c,ip,port,NULL);
return c;
}
redisContext *redisConnectWithTimeout(const char *ip, int port, struct timeval tv) {
redisContext *c = redisContextInit();
c->flags |= REDIS_BLOCK;
redisContextConnectTcp(c,ip,port,&tv);
return c;
}
redisContext *redisConnectNonBlock(const char *ip, int port) {
redisContext *c = redisContextInit();
c->flags &= ~REDIS_BLOCK;
redisContextConnectTcp(c,ip,port);
redisContextConnectTcp(c,ip,port,NULL);
return c;
}
redisContext *redisConnectUnix(const char *path) {
redisContext *c = redisContextInit();
c->flags |= REDIS_BLOCK;
redisContextConnectUnix(c,path);
redisContextConnectUnix(c,path,NULL);
return c;
}
redisContext *redisConnectUnixWithTimeout(const char *path, struct timeval tv) {
redisContext *c = redisContextInit();
c->flags |= REDIS_BLOCK;
redisContextConnectUnix(c,path,&tv);
return c;
}
redisContext *redisConnectUnixNonBlock(const char *path) {
redisContext *c = redisContextInit();
c->flags &= ~REDIS_BLOCK;
redisContextConnectUnix(c,path);
redisContextConnectUnix(c,path,NULL);
return c;
}
/* Set read/write timeout on a blocking socket. */
int redisSetTimeout(redisContext *c, struct timeval tv) {
if (c->flags & REDIS_BLOCK)
return redisContextSetTimeout(c,tv);
return REDIS_ERR;
}
/* Set the replyObjectFunctions to use. Returns REDIS_ERR when the reader
* was already initialized and the function set could not be re-set.
* Return REDIS_OK when they could be set. */
@ -879,7 +904,7 @@ int redisBufferRead(redisContext *c) {
char buf[2048];
int nread = read(c->fd,buf,sizeof(buf));
if (nread == -1) {
if (errno == EAGAIN) {
if (errno == EAGAIN && !(c->flags & REDIS_BLOCK)) {
/* Try again later */
} else {
__redisSetError(c,REDIS_ERR_IO,NULL);
@ -910,7 +935,7 @@ int redisBufferWrite(redisContext *c, int *done) {
if (sdslen(c->obuf) > 0) {
nwritten = write(c->fd,c->obuf,sdslen(c->obuf));
if (nwritten == -1) {
if (errno == EAGAIN) {
if (errno == EAGAIN && !(c->flags & REDIS_BLOCK)) {
/* Try again later */
} else {
__redisSetError(c,REDIS_ERR_IO,NULL);

18
deps/hiredis/hiredis.h vendored
View File

@ -33,6 +33,7 @@
#define __HIREDIS_H
#include <stdio.h> /* for size_t */
#include <stdarg.h> /* for va_list */
#include <sys/time.h> /* for struct timeval */
#define HIREDIS_MAJOR 0
#define HIREDIS_MINOR 9
@ -64,6 +65,16 @@
* should be terminated once all replies have been read. */
#define REDIS_DISCONNECTING 0x4
/* Flag specific to the async API which means that the context should be clean
* up as soon as possible. */
#define REDIS_FREEING 0x8
/* Flag that is set when an async callback is executed. */
#define REDIS_IN_CALLBACK 0x10
/* Flag that is set when the async context has one or more subscriptions. */
#define REDIS_SUBSCRIBED 0x20
#define REDIS_REPLY_STRING 1
#define REDIS_REPLY_ARRAY 2
#define REDIS_REPLY_INTEGER 3
@ -118,13 +129,13 @@ typedef struct redisContext {
} redisContext;
void freeReplyObject(void *reply);
void *redisReplyReaderCreate();
void *redisReplyReaderCreate(void);
int redisReplyReaderSetReplyObjectFunctions(void *reader, redisReplyObjectFunctions *fn);
int redisReplyReaderSetPrivdata(void *reader, void *privdata);
void *redisReplyReaderGetObject(void *reader);
char *redisReplyReaderGetError(void *reader);
void redisReplyReaderFree(void *ptr);
void redisReplyReaderFeed(void *reader, char *buf, size_t len);
void redisReplyReaderFeed(void *reader, const char *buf, size_t len);
int redisReplyReaderGetReply(void *reader, void **reply);
/* Functions to format a command according to the protocol. */
@ -133,9 +144,12 @@ int redisFormatCommand(char **target, const char *format, ...);
int redisFormatCommandArgv(char **target, int argc, const char **argv, const size_t *argvlen);
redisContext *redisConnect(const char *ip, int port);
redisContext *redisConnectWithTimeout(const char *ip, int port, struct timeval tv);
redisContext *redisConnectNonBlock(const char *ip, int port);
redisContext *redisConnectUnix(const char *path);
redisContext *redisConnectUnixWithTimeout(const char *path, struct timeval tv);
redisContext *redisConnectUnixNonBlock(const char *path);
int redisSetTimeout(redisContext *c, struct timeval tv);
int redisSetReplyObjectFunctions(redisContext *c, redisReplyObjectFunctions *fn);
void redisFree(redisContext *c);
int redisBufferRead(redisContext *c);

118
deps/hiredis/net.c vendored
View File

@ -4,6 +4,7 @@
* Copyright (c) 2010, Pieter Noordhuis <pcnoordhuis at gmail dot com>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
@ -32,6 +33,7 @@
#include "fmacros.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
@ -66,7 +68,7 @@ static int redisCreateSocket(redisContext *c, int type) {
return s;
}
static int redisSetNonBlock(redisContext *c, int fd) {
static int redisSetBlocking(redisContext *c, int fd, int blocking) {
int flags;
/* Set the socket nonblocking.
@ -78,9 +80,15 @@ static int redisSetNonBlock(redisContext *c, int fd) {
close(fd);
return REDIS_ERR;
}
if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) {
if (blocking)
flags &= ~O_NONBLOCK;
else
flags |= O_NONBLOCK;
if (fcntl(fd, F_SETFL, flags) == -1) {
__redisSetError(c,REDIS_ERR_IO,
sdscatprintf(sdsempty(), "fcntl(F_SETFL,O_NONBLOCK): %s", strerror(errno)));
sdscatprintf(sdsempty(), "fcntl(F_SETFL): %s", strerror(errno)));
close(fd);
return REDIS_ERR;
}
@ -92,19 +100,89 @@ static int redisSetTcpNoDelay(redisContext *c, int fd) {
if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes)) == -1) {
__redisSetError(c,REDIS_ERR_IO,
sdscatprintf(sdsempty(), "setsockopt(TCP_NODELAY): %s", strerror(errno)));
close(fd);
return REDIS_ERR;
}
return REDIS_OK;
}
int redisContextConnectTcp(redisContext *c, const char *addr, int port) {
static int redisContextWaitReady(redisContext *c, int fd, const struct timeval *timeout) {
struct timeval to;
struct timeval *toptr = NULL;
fd_set wfd;
int err;
socklen_t errlen;
/* Only use timeout when not NULL. */
if (timeout != NULL) {
to = *timeout;
toptr = &to;
}
if (errno == EINPROGRESS) {
FD_ZERO(&wfd);
FD_SET(fd, &wfd);
if (select(FD_SETSIZE, NULL, &wfd, NULL, toptr) == -1) {
__redisSetError(c,REDIS_ERR_IO,
sdscatprintf(sdsempty(), "select(2): %s", strerror(errno)));
close(fd);
return REDIS_ERR;
}
if (!FD_ISSET(fd, &wfd)) {
errno = ETIMEDOUT;
__redisSetError(c,REDIS_ERR_IO,NULL);
close(fd);
return REDIS_ERR;
}
err = 0;
errlen = sizeof(err);
if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &errlen) == -1) {
__redisSetError(c,REDIS_ERR_IO,
sdscatprintf(sdsempty(), "getsockopt(SO_ERROR): %s", strerror(errno)));
close(fd);
return REDIS_ERR;
}
if (err) {
errno = err;
__redisSetError(c,REDIS_ERR_IO,NULL);
close(fd);
return REDIS_ERR;
}
return REDIS_OK;
}
__redisSetError(c,REDIS_ERR_IO,NULL);
close(fd);
return REDIS_ERR;
}
int redisContextSetTimeout(redisContext *c, struct timeval tv) {
if (setsockopt(c->fd,SOL_SOCKET,SO_RCVTIMEO,&tv,sizeof(tv)) == -1) {
__redisSetError(c,REDIS_ERR_IO,
sdscatprintf(sdsempty(), "setsockopt(SO_RCVTIMEO): %s", strerror(errno)));
return REDIS_ERR;
}
if (setsockopt(c->fd,SOL_SOCKET,SO_SNDTIMEO,&tv,sizeof(tv)) == -1) {
__redisSetError(c,REDIS_ERR_IO,
sdscatprintf(sdsempty(), "setsockopt(SO_SNDTIMEO): %s", strerror(errno)));
return REDIS_ERR;
}
return REDIS_OK;
}
int redisContextConnectTcp(redisContext *c, const char *addr, int port, struct timeval *timeout) {
int s;
int blocking = (c->flags & REDIS_BLOCK);
struct sockaddr_in sa;
if ((s = redisCreateSocket(c,AF_INET)) == REDIS_ERR)
if ((s = redisCreateSocket(c,AF_INET)) < 0)
return REDIS_ERR;
if (!blocking && redisSetNonBlock(c,s) == REDIS_ERR)
if (redisSetBlocking(c,s,0) != REDIS_OK)
return REDIS_ERR;
sa.sin_family = AF_INET;
@ -126,30 +204,31 @@ int redisContextConnectTcp(redisContext *c, const char *addr, int port) {
if (errno == EINPROGRESS && !blocking) {
/* This is ok. */
} else {
__redisSetError(c,REDIS_ERR_IO,NULL);
close(s);
return REDIS_ERR;
if (redisContextWaitReady(c,s,timeout) != REDIS_OK)
return REDIS_ERR;
}
}
if (redisSetTcpNoDelay(c,s) != REDIS_OK) {
close(s);
/* Reset socket to be blocking after connect(2). */
if (blocking && redisSetBlocking(c,s,1) != REDIS_OK)
return REDIS_ERR;
if (redisSetTcpNoDelay(c,s) != REDIS_OK)
return REDIS_ERR;
}
c->fd = s;
c->flags |= REDIS_CONNECTED;
return REDIS_OK;
}
int redisContextConnectUnix(redisContext *c, const char *path) {
int redisContextConnectUnix(redisContext *c, const char *path, struct timeval *timeout) {
int s;
int blocking = (c->flags & REDIS_BLOCK);
struct sockaddr_un sa;
if ((s = redisCreateSocket(c,AF_LOCAL)) == REDIS_ERR)
if ((s = redisCreateSocket(c,AF_LOCAL)) < 0)
return REDIS_ERR;
if (!blocking && redisSetNonBlock(c,s) != REDIS_OK)
if (redisSetBlocking(c,s,0) != REDIS_OK)
return REDIS_ERR;
sa.sun_family = AF_LOCAL;
@ -158,12 +237,15 @@ int redisContextConnectUnix(redisContext *c, const char *path) {
if (errno == EINPROGRESS && !blocking) {
/* This is ok. */
} else {
__redisSetError(c,REDIS_ERR_IO,NULL);
close(s);
return REDIS_ERR;
if (redisContextWaitReady(c,s,timeout) != REDIS_OK)
return REDIS_ERR;
}
}
/* Reset socket to be blocking after connect(2). */
if (blocking && redisSetBlocking(c,s,1) != REDIS_OK)
return REDIS_ERR;
c->fd = s;
c->flags |= REDIS_CONNECTED;
return REDIS_OK;

7
deps/hiredis/net.h vendored
View File

@ -1,6 +1,8 @@
/* Extracted from anet.c to work properly with Hiredis error reporting.
*
* Copyright (c) 2006-2010, Salvatore Sanfilippo <antirez at gmail dot com>
* Copyright (c) 2010, Pieter Noordhuis <pcnoordhuis at gmail dot com>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -37,7 +39,8 @@
#define AF_LOCAL AF_UNIX
#endif
int redisContextConnectTcp(redisContext *c, const char *addr, int port);
int redisContextConnectUnix(redisContext *c, const char *path);
int redisContextSetTimeout(redisContext *c, struct timeval tv);
int redisContextConnectTcp(redisContext *c, const char *addr, int port, struct timeval *timeout);
int redisContextConnectUnix(redisContext *c, const char *path, struct timeval *timeout);
#endif

145
deps/hiredis/sds.c vendored
View File

@ -30,11 +30,11 @@
#define SDS_ABORT_ON_OOM
#include "sds.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "sds.h"
static void sdsOomAbort(void) {
fprintf(stderr,"SDS: Out Of Memory (SDS_ABORT_ON_OOM defined)\n");
@ -69,11 +69,6 @@ sds sdsnew(const char *init) {
return sdsnewlen(init, initlen);
}
size_t sdslen(const sds s) {
struct sdshdr *sh = (void*) (s-(sizeof(struct sdshdr)));
return sh->len;
}
sds sdsdup(const sds s) {
return sdsnewlen(s, sdslen(s));
}
@ -83,11 +78,6 @@ void sdsfree(sds s) {
free(s-sizeof(struct sdshdr));
}
size_t sdsavail(sds s) {
struct sdshdr *sh = (void*) (s-(sizeof(struct sdshdr)));
return sh->free;
}
void sdsupdatelen(sds s) {
struct sdshdr *sh = (void*) (s-(sizeof(struct sdshdr)));
int reallen = strlen(s);
@ -115,6 +105,25 @@ static sds sdsMakeRoomFor(sds s, size_t addlen) {
return newsh->buf;
}
/* Grow the sds to have the specified length. Bytes that were not part of
* the original length of the sds will be set to zero. */
sds sdsgrowzero(sds s, size_t len) {
struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr)));
size_t totlen, curlen = sh->len;
if (len <= curlen) return s;
s = sdsMakeRoomFor(s,len-curlen);
if (s == NULL) return NULL;
/* Make sure added region doesn't contain garbage */
sh = (void*)(s-(sizeof(struct sdshdr)));
memset(s+curlen,0,(len-curlen+1)); /* also set trailing \0 byte */
totlen = sh->len+sh->free;
sh->len = len;
sh->free = totlen-sh->len;
return s;
}
sds sdscatlen(sds s, const void *t, size_t len) {
struct sdshdr *sh;
size_t curlen = sdslen(s);
@ -222,13 +231,16 @@ sds sdsrange(sds s, int start, int end) {
}
newlen = (start > end) ? 0 : (end-start)+1;
if (newlen != 0) {
if (start >= (signed)len) start = len-1;
if (end >= (signed)len) end = len-1;
newlen = (start > end) ? 0 : (end-start)+1;
if (start >= (signed)len) {
newlen = 0;
} else if (end >= (signed)len) {
end = len-1;
newlen = (start > end) ? 0 : (end-start)+1;
}
} else {
start = 0;
}
if (start != 0) memmove(sh->buf, sh->buf+start, newlen);
if (start && newlen) memmove(sh->buf, sh->buf+start, newlen);
sh->buf[newlen] = 0;
sh->free = sh->free+(sh->len-newlen);
sh->len = newlen;
@ -477,3 +489,106 @@ err:
if (current) sdsfree(current);
return NULL;
}
#ifdef SDS_TEST_MAIN
#include <stdio.h>
int __failed_tests = 0;
int __test_num = 0;
#define test_cond(descr,_c) do { \
__test_num++; printf("%d - %s: ", __test_num, descr); \
if(_c) printf("PASSED\n"); else {printf("FAILED\n"); __failed_tests++;} \
} while(0);
#define test_report() do { \
printf("%d tests, %d passed, %d failed\n", __test_num, \
__test_num-__failed_tests, __failed_tests); \
if (__failed_tests) { \
printf("=== WARNING === We have failed tests here...\n"); \
} \
} while(0);
int main(void) {
{
sds x = sdsnew("foo"), y;
test_cond("Create a string and obtain the length",
sdslen(x) == 3 && memcmp(x,"foo\0",4) == 0)
sdsfree(x);
x = sdsnewlen("foo",2);
test_cond("Create a string with specified length",
sdslen(x) == 2 && memcmp(x,"fo\0",3) == 0)
x = sdscat(x,"bar");
test_cond("Strings concatenation",
sdslen(x) == 5 && memcmp(x,"fobar\0",6) == 0);
x = sdscpy(x,"a");
test_cond("sdscpy() against an originally longer string",
sdslen(x) == 1 && memcmp(x,"a\0",2) == 0)
x = sdscpy(x,"xyzxxxxxxxxxxyyyyyyyyyykkkkkkkkkk");
test_cond("sdscpy() against an originally shorter string",
sdslen(x) == 33 &&
memcmp(x,"xyzxxxxxxxxxxyyyyyyyyyykkkkkkkkkk\0",33) == 0)
sdsfree(x);
x = sdscatprintf(sdsempty(),"%d",123);
test_cond("sdscatprintf() seems working in the base case",
sdslen(x) == 3 && memcmp(x,"123\0",4) ==0)
sdsfree(x);
x = sdstrim(sdsnew("xxciaoyyy"),"xy");
test_cond("sdstrim() correctly trims characters",
sdslen(x) == 4 && memcmp(x,"ciao\0",5) == 0)
y = sdsrange(sdsdup(x),1,1);
test_cond("sdsrange(...,1,1)",
sdslen(y) == 1 && memcmp(y,"i\0",2) == 0)
sdsfree(y);
y = sdsrange(sdsdup(x),1,-1);
test_cond("sdsrange(...,1,-1)",
sdslen(y) == 3 && memcmp(y,"iao\0",4) == 0)
sdsfree(y);
y = sdsrange(sdsdup(x),-2,-1);
test_cond("sdsrange(...,-2,-1)",
sdslen(y) == 2 && memcmp(y,"ao\0",3) == 0)
sdsfree(y);
y = sdsrange(sdsdup(x),2,1);
test_cond("sdsrange(...,2,1)",
sdslen(y) == 0 && memcmp(y,"\0",1) == 0)
sdsfree(y);
y = sdsrange(sdsdup(x),1,100);
test_cond("sdsrange(...,1,100)",
sdslen(y) == 3 && memcmp(y,"iao\0",4) == 0)
sdsfree(y);
y = sdsrange(sdsdup(x),100,100);
test_cond("sdsrange(...,100,100)",
sdslen(y) == 0 && memcmp(y,"\0",1) == 0)
sdsfree(y);
sdsfree(x);
x = sdsnew("foo");
y = sdsnew("foa");
test_cond("sdscmp(foo,foa)", sdscmp(x,y) > 0)
sdsfree(y);
sdsfree(x);
x = sdsnew("bar");
y = sdsnew("bar");
test_cond("sdscmp(bar,bar)", sdscmp(x,y) == 0)
sdsfree(y);
sdsfree(x);
x = sdsnew("aar");
y = sdsnew("bar");
test_cond("sdscmp(bar,bar)", sdscmp(x,y) < 0)
}
test_report()
}
#endif

13
deps/hiredis/sds.h vendored
View File

@ -42,13 +42,24 @@ struct sdshdr {
char buf[];
};
static inline size_t sdslen(const sds s) {
struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr)));
return sh->len;
}
static inline size_t sdsavail(const sds s) {
struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr)));
return sh->free;
}
sds sdsnewlen(const void *init, size_t initlen);
sds sdsnew(const char *init);
sds sdsempty();
sds sdsempty(void);
size_t sdslen(const sds s);
sds sdsdup(const sds s);
void sdsfree(sds s);
size_t sdsavail(sds s);
sds sdsgrowzero(sds s, size_t len);
sds sdscatlen(sds s, const void *t, size_t len);
sds sdscat(sds s, const char *t);
sds sdscpylen(sds s, char *t, size_t len);

85
deps/hiredis/test.c vendored
View File

@ -6,6 +6,7 @@
#include <assert.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include "hiredis.h"
@ -31,7 +32,7 @@ static void __connect(redisContext **target) {
}
}
static void test_format_commands() {
static void test_format_commands(void) {
char *cmd;
int len;
@ -53,6 +54,12 @@ static void test_format_commands() {
len == 4+4+(3+2)+4+(3+2)+4+(0+2));
free(cmd);
test("Format command with an empty string in between proper interpolations: ");
len = redisFormatCommand(&cmd,"SET %s %s","","foo");
test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$0\r\n\r\n$3\r\nfoo\r\n",len) == 0 &&
len == 4+4+(3+2)+4+(0+2)+4+(3+2));
free(cmd);
test("Format command with %%b string interpolation: ");
len = redisFormatCommand(&cmd,"SET %b %b","foo",3,"b\0r",3);
test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nb\0r\r\n",len) == 0 &&
@ -115,7 +122,7 @@ static void test_format_commands() {
free(cmd);
}
static void test_blocking_connection() {
static void test_blocking_connection(void) {
redisContext *c;
redisReply *reply;
int major, minor;
@ -246,13 +253,21 @@ static void test_blocking_connection() {
* conditions, the error will be set to EOF. */
assert(c->err == REDIS_ERR_EOF &&
strcmp(c->errstr,"Server closed the connection") == 0);
/* Clean up context and reconnect again */
redisFree(c);
__connect(&c);
test("Returns I/O error on socket timeout: ");
struct timeval tv = { 0, 1000 };
assert(redisSetTimeout(c,tv) == REDIS_OK);
test_cond(redisGetReply(c,(void**)&reply) == REDIS_ERR &&
c->err == REDIS_ERR_IO && errno == EAGAIN);
redisFree(c);
/* Context should be connected */
__connect(&c);
}
static void test_reply_reader() {
static void test_reply_reader(void) {
void *reader;
void *reply;
char *err;
@ -309,10 +324,19 @@ static void test_reply_reader() {
ret = redisReplyReaderGetReply(reader,&reply);
test_cond(ret == REDIS_OK && reply == (void*)REDIS_REPLY_STATUS);
redisReplyReaderFree(reader);
test("Properly reset state after protocol error: ");
reader = redisReplyReaderCreate();
redisReplyReaderSetReplyObjectFunctions(reader,NULL);
redisReplyReaderFeed(reader,(char*)"x",1);
ret = redisReplyReaderGetReply(reader,&reply);
assert(ret == REDIS_ERR);
ret = redisReplyReaderGetReply(reader,&reply);
test_cond(ret == REDIS_OK && reply == NULL)
}
static void test_throughput() {
int i;
static void test_throughput(void) {
int i, num;
long long t1, t2;
redisContext *c = blocking_context;
redisReply **replies;
@ -321,31 +345,60 @@ static void test_throughput() {
for (i = 0; i < 500; i++)
freeReplyObject(redisCommand(c,"LPUSH mylist foo"));
replies = malloc(sizeof(redisReply*)*1000);
num = 1000;
replies = malloc(sizeof(redisReply*)*num);
t1 = usec();
for (i = 0; i < 1000; i++) {
for (i = 0; i < num; i++) {
replies[i] = redisCommand(c,"PING");
assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_STATUS);
}
t2 = usec();
for (i = 0; i < 1000; i++) freeReplyObject(replies[i]);
for (i = 0; i < num; i++) freeReplyObject(replies[i]);
free(replies);
printf("\t(1000x PING: %.2fs)\n", (t2-t1)/1000000.0);
printf("\t(%dx PING: %.3fs)\n", num, (t2-t1)/1000000.0);
replies = malloc(sizeof(redisReply*)*1000);
replies = malloc(sizeof(redisReply*)*num);
t1 = usec();
for (i = 0; i < 1000; i++) {
for (i = 0; i < num; i++) {
replies[i] = redisCommand(c,"LRANGE mylist 0 499");
assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_ARRAY);
assert(replies[i] != NULL && replies[i]->elements == 500);
}
t2 = usec();
for (i = 0; i < 1000; i++) freeReplyObject(replies[i]);
for (i = 0; i < num; i++) freeReplyObject(replies[i]);
free(replies);
printf("\t(1000x LRANGE with 500 elements: %.2fs)\n", (t2-t1)/1000000.0);
printf("\t(%dx LRANGE with 500 elements: %.3fs)\n", num, (t2-t1)/1000000.0);
num = 10000;
replies = malloc(sizeof(redisReply*)*num);
for (i = 0; i < num; i++)
redisAppendCommand(c,"PING");
t1 = usec();
for (i = 0; i < num; i++) {
assert(redisGetReply(c, (void*)&replies[i]) == REDIS_OK);
assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_STATUS);
}
t2 = usec();
for (i = 0; i < num; i++) freeReplyObject(replies[i]);
free(replies);
printf("\t(%dx PING (pipelined): %.3fs)\n", num, (t2-t1)/1000000.0);
replies = malloc(sizeof(redisReply*)*num);
for (i = 0; i < num; i++)
redisAppendCommand(c,"LRANGE mylist 0 499");
t1 = usec();
for (i = 0; i < num; i++) {
assert(redisGetReply(c, (void*)&replies[i]) == REDIS_OK);
assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_ARRAY);
assert(replies[i] != NULL && replies[i]->elements == 500);
}
t2 = usec();
for (i = 0; i < num; i++) freeReplyObject(replies[i]);
free(replies);
printf("\t(%dx LRANGE with 500 elements (pipelined): %.3fs)\n", num, (t2-t1)/1000000.0);
}
static void cleanup() {
static void cleanup(void) {
redisContext *c = blocking_context;
redisReply *reply;