* Introduce a new `RedisCmd` struct to dynamically append RESP arguments
such that we don't have to precalculate the number of arguments the
command will have up front.
Additionally the new `RedisCmd allows both a `void *` context pointer
but also can attach a `void (*ctx_dtor)(void*)` destructor so we are
still able to clean up any allocated context when commands fail.
This moves the context cleanup out of every individual reply handler
and into the generic processing wrappers.
* Create a small group of `resp_str` helper functions for lower level
concatination of RESP protocol data over the wire.
* Lots of small modernization of the codebase such as using
`zend_string*` instead of (`char *`, `size_t`) pairs.
* Greatly simplify `crosslot` handling logic
When a RedisArray uses a custom hash algorithm, ra_find_node allocated
the hash context and digest buffers on the heap for every key lookup.
Both are small (the largest common context is SHA-512 at ~208 bytes),
so use stack buffers for the common case and fall back to emalloc only
when an algorithm's context or digest exceeds them.
The context buffer is a union with a double member to guarantee the
alignment the context structs require for their uint64_t state.
On some glibc implementations strncmp is a macro. This commit simply creates a
`redis_strncmp` static inline wrapper function so we can `ZEND_STRL` instead of
manually counting the length or using `sizeof(s)-1` each time.
Fixes#2565
Add support for Redis 6 ACLs in the `Redis`, `RedisCluster`, and `RedisArray` classes.
On a related note, it adds a mechanism for users to customize how we generate persistent connection IDs such that they can be grouped in different ways depending on the specific use case required (e.g. it would allow connections to be grouped by username, or by user-defined persistent_id, or both).
PHP 7 removed TSRMLS_CC from zend_throw_exception* routines.
Additionally this commit creates two simple wrapper macros for throwing
Redis or RedisCluster exceptions so we don't duplicate as much code.
Additionally there were a couple of minor compiler warnings printf type
correctness fixed in this commit.
This commit removes support for PHP 5 by getting rid of all of our Zend
compatibility layer methods, as well as any call checking against
PHP_MAJOR_VERSION or ZEND_MODULE_API_NO.
Unit tests are all passing for Redis, RedisCluster, and RedisArray but
this should still be considered a work in progress until more testing
can be done.
Addresses issue #1448
Change type of returning value from `char *` to `zend_string *` for
`ra_extract_key` and `ra_call_extractor` functions.
Store keys as `zend_string *` in RedisArray::mset.
Small change php5 implementation of ZEND_HASH_FOREACH_* macroses.
Use ZEND_HASH_FOREACH_VAL in ra_get_key_type.
Allocate array via MAKE_STD_ZVAL in HANDLE_MULTI_EXEC macro.
michael-grunder