- aggiunta libreria hiredis 1.3.0.
This commit is contained in:
Riccardo Elitropi
2025-09-24 16:04:08 +02:00
parent f6b8c50409
commit 99bc2e75a1
10 changed files with 1115 additions and 0 deletions
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/*
* Copyright (c) 2020, Michael Grunder <michael dot grunder 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 HIREDIS_ALLOC_H
#define HIREDIS_ALLOC_H
#include <stddef.h> /* for size_t */
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Structure pointing to our actually configured allocators */
typedef struct hiredisAllocFuncs {
void *(*mallocFn)(size_t);
void *(*callocFn)(size_t,size_t);
void *(*reallocFn)(void*,size_t);
char *(*strdupFn)(const char*);
void (*freeFn)(void*);
} hiredisAllocFuncs;
hiredisAllocFuncs hiredisSetAllocators(hiredisAllocFuncs *ha);
void hiredisResetAllocators(void);
#ifndef _WIN32
/* Hiredis' configured allocator function pointer struct */
extern hiredisAllocFuncs hiredisAllocFns;
static inline void *hi_malloc(size_t size) {
return hiredisAllocFns.mallocFn(size);
}
static inline void *hi_calloc(size_t nmemb, size_t size) {
/* Overflow check as the user can specify any arbitrary allocator */
if (SIZE_MAX / size < nmemb)
return NULL;
return hiredisAllocFns.callocFn(nmemb, size);
}
static inline void *hi_realloc(void *ptr, size_t size) {
return hiredisAllocFns.reallocFn(ptr, size);
}
static inline char *hi_strdup(const char *str) {
return hiredisAllocFns.strdupFn(str);
}
static inline void hi_free(void *ptr) {
hiredisAllocFns.freeFn(ptr);
}
#else
void *hi_malloc(size_t size);
void *hi_calloc(size_t nmemb, size_t size);
void *hi_realloc(void *ptr, size_t size);
char *hi_strdup(const char *str);
void hi_free(void *ptr);
#endif
#ifdef __cplusplus
}
#endif
#endif /* HIREDIS_ALLOC_H */
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/*
* Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
* Copyright (c) 2010-2011, 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:
*
* * 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 __HIREDIS_ASYNC_H
#define __HIREDIS_ASYNC_H
#include "hiredis.h"
#ifdef __cplusplus
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*);
typedef struct redisCallback {
struct redisCallback *next; /* simple singly linked list */
redisCallbackFn *fn;
int pending_subs;
int unsubscribe_sent;
void *privdata;
} redisCallback;
/* List of callbacks for either regular replies or pub/sub */
typedef struct redisCallbackList {
redisCallback *head, *tail;
} redisCallbackList;
/* Connection callback prototypes */
typedef void (redisDisconnectCallback)(const struct redisAsyncContext*, int status);
typedef void (redisConnectCallback)(const struct redisAsyncContext*, int status);
typedef void (redisConnectCallbackNC)(struct redisAsyncContext *, int status);
typedef void(redisTimerCallback)(void *timer, void *privdata);
/* Context for an async connection to Redis */
typedef struct redisAsyncContext {
/* Hold the regular context, so it can be realloc'ed. */
redisContext c;
/* Setup error flags so they can be used directly. */
int err;
char *errstr;
/* Not used by hiredis */
void *data;
void (*dataCleanup)(void *privdata);
/* Event library data and hooks */
struct {
void *data;
/* 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);
void (*scheduleTimer)(void *privdata, struct timeval tv);
} 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). */
redisDisconnectCallback *onDisconnect;
/* Called when the first write event was received. */
redisConnectCallback *onConnect;
redisConnectCallbackNC *onConnectNC;
/* Regular command callbacks */
redisCallbackList replies;
/* Address used for connect() */
struct sockaddr *saddr;
size_t addrlen;
/* Subscription callbacks */
struct {
redisCallbackList replies;
struct dict *channels;
struct dict *patterns;
int pending_unsubs;
} sub;
/* Any configured RESP3 PUSH handler */
redisAsyncPushFn *push_cb;
} redisAsyncContext;
/* Functions that proxy to hiredis */
redisAsyncContext *redisAsyncConnectWithOptions(const redisOptions *options);
redisAsyncContext *redisAsyncConnect(const char *ip, int port);
redisAsyncContext *redisAsyncConnectBind(const char *ip, int port, const char *source_addr);
redisAsyncContext *redisAsyncConnectBindWithReuse(const char *ip, int port,
const char *source_addr);
redisAsyncContext *redisAsyncConnectUnix(const char *path);
int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn);
int redisAsyncSetConnectCallbackNC(redisAsyncContext *ac, redisConnectCallbackNC *fn);
int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn);
redisAsyncPushFn *redisAsyncSetPushCallback(redisAsyncContext *ac, redisAsyncPushFn *fn);
int redisAsyncSetTimeout(redisAsyncContext *ac, struct timeval tv);
void redisAsyncDisconnect(redisAsyncContext *ac);
void redisAsyncFree(redisAsyncContext *ac);
/* Handle read/write events */
void redisAsyncHandleRead(redisAsyncContext *ac);
void redisAsyncHandleWrite(redisAsyncContext *ac);
void redisAsyncHandleTimeout(redisAsyncContext *ac);
void redisAsyncRead(redisAsyncContext *ac);
void redisAsyncWrite(redisAsyncContext *ac);
/* Command functions for an async context. Write the command to the
* output buffer and register the provided callback. */
int redisvAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, va_list ap);
int redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, ...);
int redisAsyncCommandArgv(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, int argc, const char **argv, const size_t *argvlen);
int redisAsyncFormattedCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *cmd, size_t len);
#ifdef __cplusplus
}
#endif
#endif
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/*
* Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
* Copyright (c) 2010-2014, Pieter Noordhuis <pcnoordhuis at gmail dot com>
* Copyright (c) 2015, Matt Stancliff <matt at genges dot com>,
* Jan-Erik Rediger <janerik at fnordig 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 __HIREDIS_H
#define __HIREDIS_H
#include "read.h"
#include <stdarg.h> /* for va_list */
#ifndef _MSC_VER
#include <sys/time.h> /* for struct timeval */
#else
struct timeval; /* forward declaration */
typedef intptr_t ssize_t;
#endif
#include <stdint.h> /* uintXX_t, etc */
#include "sds.h" /* for sds */
#include "alloc.h" /* for allocation wrappers */
#define HIREDIS_MAJOR 1
#define HIREDIS_MINOR 3
#define HIREDIS_PATCH 0
#define HIREDIS_SONAME 1.3.0
/* Connection type can be blocking or non-blocking and is set in the
* least significant bit of the flags field in redisContext. */
#define REDIS_BLOCK 0x1
/* Connection may be disconnected before being free'd. The second bit
* in the flags field is set when the context is connected. */
#define REDIS_CONNECTED 0x2
/* The async API might try to disconnect cleanly and flush the output
* buffer and read all subsequent replies before disconnecting.
* This flag means no new commands can come in and the connection
* 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
/* Flag that is set when monitor mode is active */
#define REDIS_MONITORING 0x40
/* Flag that is set when we should set SO_REUSEADDR before calling bind() */
#define REDIS_REUSEADDR 0x80
/* Flag that is set when the async connection supports push replies. */
#define REDIS_SUPPORTS_PUSH 0x100
/**
* Flag that indicates the user does not want the context to
* be automatically freed upon error
*/
#define REDIS_NO_AUTO_FREE 0x200
/* Flag that indicates the user does not want replies to be automatically freed */
#define REDIS_NO_AUTO_FREE_REPLIES 0x400
/* Flags to prefer IPv6 or IPv4 when doing DNS lookup. (If both are set,
* AF_UNSPEC is used.) */
#define REDIS_PREFER_IPV4 0x800
#define REDIS_PREFER_IPV6 0x1000
#define REDIS_KEEPALIVE_INTERVAL 15 /* seconds */
/* number of times we retry to connect in the case of EADDRNOTAVAIL and
* SO_REUSEADDR is being used. */
#define REDIS_CONNECT_RETRIES 10
/* Forward declarations for structs defined elsewhere */
struct redisAsyncContext;
struct redisContext;
/* RESP3 push helpers and callback prototypes */
#define redisIsPushReply(r) (((redisReply*)(r))->type == REDIS_REPLY_PUSH)
typedef void (redisPushFn)(void *, void *);
typedef void (redisAsyncPushFn)(struct redisAsyncContext *, void *);
#ifdef __cplusplus
extern "C" {
#endif
/* This is the reply object returned by redisCommand() */
typedef struct redisReply {
int type; /* REDIS_REPLY_* */
long long integer; /* The integer when type is REDIS_REPLY_INTEGER */
double dval; /* The double when type is REDIS_REPLY_DOUBLE */
size_t len; /* Length of string */
char *str; /* Used for REDIS_REPLY_ERROR, REDIS_REPLY_STRING
REDIS_REPLY_VERB, REDIS_REPLY_DOUBLE (in additional to dval),
and REDIS_REPLY_BIGNUM. */
char vtype[4]; /* Used for REDIS_REPLY_VERB, contains the null
terminated 3 character content type, such as "txt". */
size_t elements; /* number of elements, for REDIS_REPLY_ARRAY */
struct redisReply **element; /* elements vector for REDIS_REPLY_ARRAY */
} redisReply;
redisReader *redisReaderCreate(void);
/* Function to free the reply objects hiredis returns by default. */
void freeReplyObject(void *reply);
/* Functions to format a command according to the protocol. */
int redisvFormatCommand(char **target, const char *format, va_list ap);
int redisFormatCommand(char **target, const char *format, ...);
long long redisFormatCommandArgv(char **target, int argc, const char **argv, const size_t *argvlen);
long long redisFormatSdsCommandArgv(sds *target, int argc, const char ** argv, const size_t *argvlen);
void redisFreeCommand(char *cmd);
void redisFreeSdsCommand(sds cmd);
enum redisConnectionType {
REDIS_CONN_TCP,
REDIS_CONN_UNIX,
REDIS_CONN_USERFD
};
struct redisSsl;
#define REDIS_OPT_NONBLOCK 0x01
#define REDIS_OPT_REUSEADDR 0x02
#define REDIS_OPT_NOAUTOFREE 0x04 /* Don't automatically free the async
* object on a connection failure, or
* other implicit conditions. Only free
* on an explicit call to disconnect()
* or free() */
#define REDIS_OPT_NO_PUSH_AUTOFREE 0x08 /* Don't automatically intercept and
* free RESP3 PUSH replies. */
#define REDIS_OPT_NOAUTOFREEREPLIES 0x10 /* Don't automatically free replies. */
#define REDIS_OPT_PREFER_IPV4 0x20 /* Prefer IPv4 in DNS lookups. */
#define REDIS_OPT_PREFER_IPV6 0x40 /* Prefer IPv6 in DNS lookups. */
#define REDIS_OPT_PREFER_IP_UNSPEC (REDIS_OPT_PREFER_IPV4 | REDIS_OPT_PREFER_IPV6)
#define REDIS_OPT_SET_SOCK_CLOEXEC 0x80 /* Set SOCK_CLOEXEC on socket file descriptor. */
/* In Unix systems a file descriptor is a regular signed int, with -1
* representing an invalid descriptor. In Windows it is a SOCKET
* (32- or 64-bit unsigned integer depending on the architecture), where
* all bits set (~0) is INVALID_SOCKET. */
#ifndef _WIN32
typedef int redisFD;
#define REDIS_INVALID_FD -1
#else
#ifdef _WIN64
typedef unsigned long long redisFD; /* SOCKET = 64-bit UINT_PTR */
#else
typedef unsigned long redisFD; /* SOCKET = 32-bit UINT_PTR */
#endif
#define REDIS_INVALID_FD ((redisFD)(~0)) /* INVALID_SOCKET */
#endif
typedef struct {
/*
* the type of connection to use. This also indicates which
* `endpoint` member field to use
*/
int type;
/* bit field of REDIS_OPT_xxx */
int options;
/* timeout value for connect operation. If NULL, no timeout is used */
const struct timeval *connect_timeout;
/* timeout value for commands. If NULL, no timeout is used. This can be
* updated at runtime with redisSetTimeout/redisAsyncSetTimeout. */
const struct timeval *command_timeout;
union {
/** use this field for tcp/ip connections */
struct {
const char *source_addr;
const char *ip;
int port;
} tcp;
/** use this field for unix domain sockets */
const char *unix_socket;
/**
* use this field to have hiredis operate an already-open
* file descriptor */
redisFD fd;
} endpoint;
/* Optional user defined data/destructor */
void *privdata;
void (*free_privdata)(void *);
/* A user defined PUSH message callback */
redisPushFn *push_cb;
redisAsyncPushFn *async_push_cb;
} redisOptions;
/**
* Helper macros to initialize options to their specified fields.
*/
#define REDIS_OPTIONS_SET_TCP(opts, ip_, port_) do { \
(opts)->type = REDIS_CONN_TCP; \
(opts)->endpoint.tcp.ip = ip_; \
(opts)->endpoint.tcp.port = port_; \
} while(0)
#define REDIS_OPTIONS_SET_UNIX(opts, path) do { \
(opts)->type = REDIS_CONN_UNIX; \
(opts)->endpoint.unix_socket = path; \
} while(0)
#define REDIS_OPTIONS_SET_PRIVDATA(opts, data, dtor) do { \
(opts)->privdata = data; \
(opts)->free_privdata = dtor; \
} while(0)
typedef struct redisContextFuncs {
void (*close)(struct redisContext *);
void (*free_privctx)(void *);
void (*async_read)(struct redisAsyncContext *);
void (*async_write)(struct redisAsyncContext *);
/* Read/Write data to the underlying communication stream, returning the
* number of bytes read/written. In the event of an unrecoverable error
* these functions shall return a value < 0. In the event of a
* recoverable error, they should return 0. */
ssize_t (*read)(struct redisContext *, char *, size_t);
ssize_t (*write)(struct redisContext *);
} redisContextFuncs;
/* Context for a connection to Redis */
typedef struct redisContext {
const redisContextFuncs *funcs; /* Function table */
int err; /* Error flags, 0 when there is no error */
char errstr[128]; /* String representation of error when applicable */
redisFD fd;
int flags;
char *obuf; /* Write buffer */
redisReader *reader; /* Protocol reader */
enum redisConnectionType connection_type;
struct timeval *connect_timeout;
struct timeval *command_timeout;
struct {
char *host;
char *source_addr;
int port;
} tcp;
struct {
char *path;
} unix_sock;
/* For non-blocking connect */
struct sockaddr *saddr;
size_t addrlen;
/* Optional data and corresponding destructor users can use to provide
* context to a given redisContext. Not used by hiredis. */
void *privdata;
void (*free_privdata)(void *);
/* Internal context pointer presently used by hiredis to manage
* SSL connections. */
void *privctx;
/* An optional RESP3 PUSH handler */
redisPushFn *push_cb;
} redisContext;
redisContext *redisConnectWithOptions(const redisOptions *options);
redisContext *redisConnect(const char *ip, int port);
redisContext *redisConnectWithTimeout(const char *ip, int port, const struct timeval tv);
redisContext *redisConnectNonBlock(const char *ip, int port);
redisContext *redisConnectBindNonBlock(const char *ip, int port,
const char *source_addr);
redisContext *redisConnectBindNonBlockWithReuse(const char *ip, int port,
const char *source_addr);
redisContext *redisConnectUnix(const char *path);
redisContext *redisConnectUnixWithTimeout(const char *path, const struct timeval tv);
redisContext *redisConnectUnixNonBlock(const char *path);
redisContext *redisConnectFd(redisFD fd);
/**
* Reconnect the given context using the saved information.
*
* This re-uses the exact same connect options as in the initial connection.
* host, ip (or path), timeout and bind address are reused,
* flags are used unmodified from the existing context.
*
* Returns REDIS_OK on successful connect or REDIS_ERR otherwise.
*/
int redisReconnect(redisContext *c);
redisPushFn *redisSetPushCallback(redisContext *c, redisPushFn *fn);
int redisSetTimeout(redisContext *c, const struct timeval tv);
int redisEnableKeepAlive(redisContext *c);
int redisEnableKeepAliveWithInterval(redisContext *c, int interval);
int redisSetTcpUserTimeout(redisContext *c, unsigned int timeout);
void redisFree(redisContext *c);
redisFD redisFreeKeepFd(redisContext *c);
int redisBufferRead(redisContext *c);
int redisBufferWrite(redisContext *c, int *done);
/* In a blocking context, this function first checks if there are unconsumed
* replies to return and returns one if so. Otherwise, it flushes the output
* buffer to the socket and reads until it has a reply. In a non-blocking
* context, it will return unconsumed replies until there are no more. */
int redisGetReply(redisContext *c, void **reply);
int redisGetReplyFromReader(redisContext *c, void **reply);
/* Write a formatted command to the output buffer. Use these functions in blocking mode
* to get a pipeline of commands. */
int redisAppendFormattedCommand(redisContext *c, const char *cmd, size_t len);
/* Write a command to the output buffer. Use these functions in blocking mode
* to get a pipeline of commands. */
int redisvAppendCommand(redisContext *c, const char *format, va_list ap);
int redisAppendCommand(redisContext *c, const char *format, ...);
int redisAppendCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen);
/* Issue a command to Redis. In a blocking context, it is identical to calling
* redisAppendCommand, followed by redisGetReply. The function will return
* NULL if there was an error in performing the request, otherwise it will
* return the reply. In a non-blocking context, it is identical to calling
* only redisAppendCommand and will always return NULL. */
void *redisvCommand(redisContext *c, const char *format, va_list ap);
void *redisCommand(redisContext *c, const char *format, ...);
void *redisCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen);
#ifdef __cplusplus
}
#endif
#endif
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/*
* Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
* Copyright (c) 2010-2011, 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:
*
* * 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 __HIREDIS_READ_H
#define __HIREDIS_READ_H
#include <stdio.h> /* for size_t */
#define REDIS_ERR -1
#define REDIS_OK 0
/* When an error occurs, the err flag in a context is set to hold the type of
* error that occurred. REDIS_ERR_IO means there was an I/O error and you
* should use the "errno" variable to find out what is wrong.
* For other values, the "errstr" field will hold a description. */
#define REDIS_ERR_IO 1 /* Error in read or write */
#define REDIS_ERR_EOF 3 /* End of file */
#define REDIS_ERR_PROTOCOL 4 /* Protocol error */
#define REDIS_ERR_OOM 5 /* Out of memory */
#define REDIS_ERR_TIMEOUT 6 /* Timed out */
#define REDIS_ERR_OTHER 2 /* Everything else... */
#define REDIS_REPLY_STRING 1
#define REDIS_REPLY_ARRAY 2
#define REDIS_REPLY_INTEGER 3
#define REDIS_REPLY_NIL 4
#define REDIS_REPLY_STATUS 5
#define REDIS_REPLY_ERROR 6
#define REDIS_REPLY_DOUBLE 7
#define REDIS_REPLY_BOOL 8
#define REDIS_REPLY_MAP 9
#define REDIS_REPLY_SET 10
#define REDIS_REPLY_ATTR 11
#define REDIS_REPLY_PUSH 12
#define REDIS_REPLY_BIGNUM 13
#define REDIS_REPLY_VERB 14
/* Default max unused reader buffer. */
#define REDIS_READER_MAX_BUF (1024*16)
/* Default multi-bulk element limit */
#define REDIS_READER_MAX_ARRAY_ELEMENTS ((1LL<<32) - 1)
#ifdef __cplusplus
extern "C" {
#endif
typedef struct redisReadTask {
int type;
long long elements; /* number of elements in multibulk container */
int idx; /* index in parent (array) object */
void *obj; /* holds user-generated value for a read task */
struct redisReadTask *parent; /* parent task */
void *privdata; /* user-settable arbitrary field */
} redisReadTask;
typedef struct redisReplyObjectFunctions {
void *(*createString)(const redisReadTask*, char*, size_t);
void *(*createArray)(const redisReadTask*, size_t);
void *(*createInteger)(const redisReadTask*, long long);
void *(*createDouble)(const redisReadTask*, double, char*, size_t);
void *(*createNil)(const redisReadTask*);
void *(*createBool)(const redisReadTask*, int);
void (*freeObject)(void*);
} redisReplyObjectFunctions;
typedef struct redisReader {
int err; /* Error flags, 0 when there is no error */
char errstr[128]; /* String representation of error when applicable */
char *buf; /* Read buffer */
size_t pos; /* Buffer cursor */
size_t len; /* Buffer length */
size_t maxbuf; /* Max length of unused buffer */
long long maxelements; /* Max multi-bulk elements */
redisReadTask **task;
int tasks;
int ridx; /* Index of current read task */
void *reply; /* Temporary reply pointer */
redisReplyObjectFunctions *fn;
void *privdata;
} redisReader;
/* Public API for the protocol parser. */
redisReader *redisReaderCreateWithFunctions(redisReplyObjectFunctions *fn);
void redisReaderFree(redisReader *r);
int redisReaderFeed(redisReader *r, const char *buf, size_t len);
int redisReaderGetReply(redisReader *r, void **reply);
#define redisReaderSetPrivdata(_r, _p) (int)(((redisReader*)(_r))->privdata = (_p))
#define redisReaderGetObject(_r) (((redisReader*)(_r))->reply)
#define redisReaderGetError(_r) (((redisReader*)(_r))->errstr)
#ifdef __cplusplus
}
#endif
#endif
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/* SDSLib 2.0 -- A C dynamic strings library
*
* Copyright (c) 2006-2015, Salvatore Sanfilippo <antirez at gmail dot com>
* Copyright (c) 2015, Oran Agra
* Copyright (c) 2015, Redis Labs, Inc
* 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 __SDS_H
#define __SDS_H
#define SDS_MAX_PREALLOC (1024*1024)
#ifdef _MSC_VER
typedef intptr_t ssize_t;
#define SSIZE_MAX INTPTR_MAX
#ifndef __clang__
#define __attribute__(x)
#endif
#endif
#include <sys/types.h>
#include <stdarg.h>
#include <stdint.h>
typedef char *sds;
/* Note: sdshdr5 is never used, we just access the flags byte directly.
* However is here to document the layout of type 5 SDS strings. */
struct __attribute__ ((__packed__)) sdshdr5 {
unsigned char flags; /* 3 lsb of type, and 5 msb of string length */
char buf[];
};
struct __attribute__ ((__packed__)) sdshdr8 {
uint8_t len; /* used */
uint8_t alloc; /* excluding the header and null terminator */
unsigned char flags; /* 3 lsb of type, 5 unused bits */
char buf[];
};
struct __attribute__ ((__packed__)) sdshdr16 {
uint16_t len; /* used */
uint16_t alloc; /* excluding the header and null terminator */
unsigned char flags; /* 3 lsb of type, 5 unused bits */
char buf[];
};
struct __attribute__ ((__packed__)) sdshdr32 {
uint32_t len; /* used */
uint32_t alloc; /* excluding the header and null terminator */
unsigned char flags; /* 3 lsb of type, 5 unused bits */
char buf[];
};
struct __attribute__ ((__packed__)) sdshdr64 {
uint64_t len; /* used */
uint64_t alloc; /* excluding the header and null terminator */
unsigned char flags; /* 3 lsb of type, 5 unused bits */
char buf[];
};
#define SDS_TYPE_5 0
#define SDS_TYPE_8 1
#define SDS_TYPE_16 2
#define SDS_TYPE_32 3
#define SDS_TYPE_64 4
#define SDS_TYPE_MASK 7
#define SDS_TYPE_BITS 3
#define SDS_HDR_VAR(T,s) struct sdshdr##T *sh = (struct sdshdr##T *)((s)-(sizeof(struct sdshdr##T)));
#define SDS_HDR(T,s) ((struct sdshdr##T *)((s)-(sizeof(struct sdshdr##T))))
#define SDS_TYPE_5_LEN(f) ((f)>>SDS_TYPE_BITS)
static inline size_t sdslen(const sds s) {
unsigned char flags = s[-1];
switch(flags&SDS_TYPE_MASK) {
case SDS_TYPE_5:
return SDS_TYPE_5_LEN(flags);
case SDS_TYPE_8:
return SDS_HDR(8,s)->len;
case SDS_TYPE_16:
return SDS_HDR(16,s)->len;
case SDS_TYPE_32:
return SDS_HDR(32,s)->len;
case SDS_TYPE_64:
return SDS_HDR(64,s)->len;
}
return 0;
}
static inline size_t sdsavail(const sds s) {
unsigned char flags = s[-1];
switch(flags&SDS_TYPE_MASK) {
case SDS_TYPE_5: {
return 0;
}
case SDS_TYPE_8: {
SDS_HDR_VAR(8,s);
return sh->alloc - sh->len;
}
case SDS_TYPE_16: {
SDS_HDR_VAR(16,s);
return sh->alloc - sh->len;
}
case SDS_TYPE_32: {
SDS_HDR_VAR(32,s);
return sh->alloc - sh->len;
}
case SDS_TYPE_64: {
SDS_HDR_VAR(64,s);
return sh->alloc - sh->len;
}
}
return 0;
}
static inline void sdssetlen(sds s, size_t newlen) {
unsigned char flags = s[-1];
switch(flags&SDS_TYPE_MASK) {
case SDS_TYPE_5:
{
unsigned char *fp = ((unsigned char*)s)-1;
*fp = (unsigned char)(SDS_TYPE_5 | (newlen << SDS_TYPE_BITS));
}
break;
case SDS_TYPE_8:
SDS_HDR(8,s)->len = (uint8_t)newlen;
break;
case SDS_TYPE_16:
SDS_HDR(16,s)->len = (uint16_t)newlen;
break;
case SDS_TYPE_32:
SDS_HDR(32,s)->len = (uint32_t)newlen;
break;
case SDS_TYPE_64:
SDS_HDR(64,s)->len = (uint64_t)newlen;
break;
}
}
static inline void sdsinclen(sds s, size_t inc) {
unsigned char flags = s[-1];
switch(flags&SDS_TYPE_MASK) {
case SDS_TYPE_5:
{
unsigned char *fp = ((unsigned char*)s)-1;
unsigned char newlen = SDS_TYPE_5_LEN(flags)+(unsigned char)inc;
*fp = SDS_TYPE_5 | (newlen << SDS_TYPE_BITS);
}
break;
case SDS_TYPE_8:
SDS_HDR(8,s)->len += (uint8_t)inc;
break;
case SDS_TYPE_16:
SDS_HDR(16,s)->len += (uint16_t)inc;
break;
case SDS_TYPE_32:
SDS_HDR(32,s)->len += (uint32_t)inc;
break;
case SDS_TYPE_64:
SDS_HDR(64,s)->len += (uint64_t)inc;
break;
}
}
/* sdsalloc() = sdsavail() + sdslen() */
static inline size_t sdsalloc(const sds s) {
unsigned char flags = s[-1];
switch(flags&SDS_TYPE_MASK) {
case SDS_TYPE_5:
return SDS_TYPE_5_LEN(flags);
case SDS_TYPE_8:
return SDS_HDR(8,s)->alloc;
case SDS_TYPE_16:
return SDS_HDR(16,s)->alloc;
case SDS_TYPE_32:
return SDS_HDR(32,s)->alloc;
case SDS_TYPE_64:
return SDS_HDR(64,s)->alloc;
}
return 0;
}
static inline void sdssetalloc(sds s, size_t newlen) {
unsigned char flags = s[-1];
switch(flags&SDS_TYPE_MASK) {
case SDS_TYPE_5:
/* Nothing to do, this type has no total allocation info. */
break;
case SDS_TYPE_8:
SDS_HDR(8,s)->alloc = (uint8_t)newlen;
break;
case SDS_TYPE_16:
SDS_HDR(16,s)->alloc = (uint16_t)newlen;
break;
case SDS_TYPE_32:
SDS_HDR(32,s)->alloc = (uint32_t)newlen;
break;
case SDS_TYPE_64:
SDS_HDR(64,s)->alloc = (uint64_t)newlen;
break;
}
}
sds sdsnewlen(const void *init, size_t initlen);
sds sdsnew(const char *init);
sds sdsempty(void);
sds sdsdup(const sds s);
void sdsfree(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 sdscatsds(sds s, const sds t);
sds sdscpylen(sds s, const char *t, size_t len);
sds sdscpy(sds s, const char *t);
sds sdscatvprintf(sds s, const char *fmt, va_list ap);
#ifdef __GNUC__
sds sdscatprintf(sds s, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));
#else
sds sdscatprintf(sds s, const char *fmt, ...);
#endif
sds sdscatfmt(sds s, char const *fmt, ...);
sds sdstrim(sds s, const char *cset);
int sdsrange(sds s, ssize_t start, ssize_t end);
void sdsupdatelen(sds s);
void sdsclear(sds s);
int sdscmp(const sds s1, const sds s2);
sds *sdssplitlen(const char *s, int len, const char *sep, int seplen, int *count);
void sdsfreesplitres(sds *tokens, int count);
void sdstolower(sds s);
void sdstoupper(sds s);
sds sdsfromlonglong(long long value);
sds sdscatrepr(sds s, const char *p, size_t len);
sds *sdssplitargs(const char *line, int *argc);
sds sdsmapchars(sds s, const char *from, const char *to, size_t setlen);
sds sdsjoin(char **argv, int argc, char *sep);
sds sdsjoinsds(sds *argv, int argc, const char *sep, size_t seplen);
/* Low level functions exposed to the user API */
sds sdsMakeRoomFor(sds s, size_t addlen);
void sdsIncrLen(sds s, int incr);
sds sdsRemoveFreeSpace(sds s);
size_t sdsAllocSize(sds s);
void *sdsAllocPtr(sds s);
/* Export the allocator used by SDS to the program using SDS.
* Sometimes the program SDS is linked to, may use a different set of
* allocators, but may want to allocate or free things that SDS will
* respectively free or allocate. */
void *sds_malloc(size_t size);
void *sds_realloc(void *ptr, size_t size);
void sds_free(void *ptr);
#ifdef REDIS_TEST
int sdsTest(int argc, char *argv[]);
#endif
#endif
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/*
* Copyright (c) 2019, Marcus Geelnard <m at bitsnbites dot eu>
*
* 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 __SOCKCOMPAT_H
#define __SOCKCOMPAT_H
#ifndef _WIN32
/* For POSIX systems we use the standard BSD socket API. */
#include <unistd.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <poll.h>
#else
/* For Windows we use winsock. */
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0600 /* To get WSAPoll etc. */
#include <winsock2.h>
#include <ws2tcpip.h>
#include <stddef.h>
#include <errno.h>
#include <mstcpip.h>
#ifdef _MSC_VER
typedef intptr_t ssize_t;
#endif
/* Emulate the parts of the BSD socket API that we need (override the winsock signatures). */
int win32_getaddrinfo(const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res);
const char *win32_gai_strerror(int errcode);
void win32_freeaddrinfo(struct addrinfo *res);
SOCKET win32_socket(int domain, int type, int protocol);
int win32_ioctl(SOCKET fd, unsigned long request, unsigned long *argp);
int win32_bind(SOCKET sockfd, const struct sockaddr *addr, socklen_t addrlen);
int win32_connect(SOCKET sockfd, const struct sockaddr *addr, socklen_t addrlen);
int win32_getsockopt(SOCKET sockfd, int level, int optname, void *optval, socklen_t *optlen);
int win32_setsockopt(SOCKET sockfd, int level, int optname, const void *optval, socklen_t optlen);
int win32_close(SOCKET fd);
ssize_t win32_recv(SOCKET sockfd, void *buf, size_t len, int flags);
ssize_t win32_send(SOCKET sockfd, const void *buf, size_t len, int flags);
typedef ULONG nfds_t;
int win32_poll(struct pollfd *fds, nfds_t nfds, int timeout);
int win32_redisKeepAlive(SOCKET sockfd, int interval_ms);
#ifndef REDIS_SOCKCOMPAT_IMPLEMENTATION
#define getaddrinfo(node, service, hints, res) win32_getaddrinfo(node, service, hints, res)
#undef gai_strerror
#define gai_strerror(errcode) win32_gai_strerror(errcode)
#define freeaddrinfo(res) win32_freeaddrinfo(res)
#define socket(domain, type, protocol) win32_socket(domain, type, protocol)
#define ioctl(fd, request, argp) win32_ioctl(fd, request, argp)
#define bind(sockfd, addr, addrlen) win32_bind(sockfd, addr, addrlen)
#define connect(sockfd, addr, addrlen) win32_connect(sockfd, addr, addrlen)
#define getsockopt(sockfd, level, optname, optval, optlen) win32_getsockopt(sockfd, level, optname, optval, optlen)
#define setsockopt(sockfd, level, optname, optval, optlen) win32_setsockopt(sockfd, level, optname, optval, optlen)
#define close(fd) win32_close(fd)
#define recv(sockfd, buf, len, flags) win32_recv(sockfd, buf, len, flags)
#define send(sockfd, buf, len, flags) win32_send(sockfd, buf, len, flags)
#define poll(fds, nfds, timeout) win32_poll(fds, nfds, timeout)
#endif /* REDIS_SOCKCOMPAT_IMPLEMENTATION */
#endif /* _WIN32 */
#endif /* __SOCKCOMPAT_H */
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