* Split function and use _new variant to avoid redundant checks
* Precompute better array size to avoid rehashing
* Use new function to add into array instead of merging into, preventing temporary memory allocations
* Convert to regex without separate copy + lowering
We're already doing a character-wise loop after lowering, so just lower
it character by character instead of looping over it twice and
allocating memory.
* Use HASH_MAP loop because htab can never be packed
This saves additional checks.
* Move destructor to more sensible place
* Remove now unused browscap_zval_copy_ctor
* Use zend_string_release_ex variant where possible
* Implement dedicated greedy wildcard matching algorithm
This avoids compiling, allocating and caching regexes and should run in
the same complexity.
* Cache previous length instead of repeatedly recomputing it
* Add additional optimization to wildcard * matching
* Move cheap checks to the callsite
The function prologue and epilogue have a stupidly high overhead for
those 2 simple checks at the start.
We can't always-inline the reg_compare function because it contains
alloca, and the alloca is really important for performance.
Instead, move those cheap checks to the call site.
* Use specialised loop to avoid unnecessary conversions and checks
* Optimize counting loop by taking into account the prefix
* Precompute the hash values of known keys
* [ci skip] UPGRADING
* Code style
* Add a note why we have the early-skip checks in the loop
The temporary HashTable has a destructor that releases the string held
by the entry's value. However, browscap_intern_str(_ci) only incremented
the refcount for the reference created by the return value. As the
HashTable is only used during parsing, we don't need to manage the
reference count of the value anyway, so get rid of the destructor.
This is triggerable in two cases:
- When using php_admin_value to set the ini at the activation stage
- When running out of space for the opcache-interned strings
Closes GH-12634.
Adding pg_send_flush_request.
Fix freeze after next execute pg_send_* on PQgetResult in _php_pgsql_link_has_results.
Set nonblocking for pipelining mode.
No flush client buffer in pg_send_* for pipelining mode.
Close GH-12644
Removes 'PRAGMA writable_schema;'.
From sqlite changelog https://www.sqlite.org/releaselog/3_44_0.html:
> The SQLITE_DBCONFIG_DEFENSIVE setting now prevents PRAGMA writable_schema
> from being turned on.
> Previously writable_schema could be turned on, but would not actually allow
> the schema to be writable. Now it simply cannot be turned on.
Closes GH-12636.
SQL Server frequently deadlocks. Parallelization of these jobs, at least in CI,
is not worthwhile because there are enough tests to run in parallel for the few
workers available.
