On shutdown in ZTS the following happens:
- https://github.com/php/php-src/blob/master/Zend/zend.c#L1124-L1125
gets executed. This destroys global persistent resources and destroys
the modules. Furthermore, the modules are unloaded too.
- Further down, `ts_free_id(executor_globals_id)` gets executed, which
calls `executor_globals_dtor`. This function destroys persistent
resources for each thread.
Notice that in the last step, the modules that the persistent resource
belong to may already have been destroyed. This means that accessing
globals will cause a crash (I previously fixed this with ifdef magic),
or when the module is dynamically loaded we'll try jumping to a
destructor that is no longer loaded in memory. These scenarios cause
crashes.
It's not possible to move the `ts_free_id` call upwards, because that
may break assumptions of callers, and furthermore this would deallocate
the executor globals structure, which means that any access to those
will cause a segfault.
This patch adds a new API to the TSRM that allows running a callback on
a certain resource type. We use this API to destroy the persistent
resources in all threads prior to the module destruction, and keep the
rest of the resource dtor intact.
I verified this fix on Apache with postgres, both dynamically and
statically.
Fixes GH-12974.
On ZTS, the global variables are stored in dynamically allocated memory.
When the module gets shut down this memory is released. After the module
is shut down, only then are the persistent resources cleared. Normally
this isn't an issue, but pgsql and odbc refer to the globals to modify
some counters, after the globals have been freed.
Fix this by guarding the modification.
Closes GH-13032.
When passing `--without-odbcver` or `--with-odbcver=no` to configure,
the ODBC version has been designed to be highest supported version
(0x0350). This syncs the behavior with the Windows build system.
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.
Declare and initialize on one line
changed to use php_memnistr
store strlen(db) in a variable
Added a semicolon to the end of dsn.
If there is a semicolon at the end of the original dsn, it will be duplicated, so it will be removed.
Add condition when authentication information is null
`ext/odbc/tests/config.inc` overrides the INIs used for the ODBC driver
manager pointlessly. It's not pointing to some custom PHP test suite
specific one, but the system one in `/etc/odbc(inst).ini`. Which
doesn't necessarily exist, on i.e. NixOS, MacPorts, etc.
Closes GH-12133
Signed-off-by: George Peter Banyard <girgias@php.net>
Like oci8, procedural ODBC uses an apply function on the hash list to
enumerate persistent connections and close the specific one. However,
this function take zvals, not resources. However, it was getting casted
as such, causing it to interpret the pointer incorrectly. This could
have caused other issues, but mostly manifested as failing to close the
connection even fi it matched.
The function now takes a zval and gets the resource from that. In
addition, it also removes the cast of the function pointer and moves
casting to the function body, to avoid possible confusion like this in
refactors again. It also cleans up style and uses constants in the
function body.
Closes GH-12132
Signed-off-by: George Peter Banyard <girgias@php.net>
Hopefully, intermittent test failures will be fixed by creating and using a separate database.
Furthermore, more meaningful test cases are added which also assert the output, as well as wildcard character based searching.
Using php_info_print_table_header() for "Foo: bar" looks odd and out of place,
because the whole line is colored. It is also questionable from a HTML
semantics point of view, because it does not described the columns that follow.
The use of this across extensions is inconsistent. It was part of the skeleton,
but ext/date or ext/json already use a regular row.
We implement SQL_ATTR_CONNECTION_DEAD for ODBC and PDO_ODBC.
This is semantically appropriate and should be used whenever the
driver supports it. In the event that it fails or says the connection
isn't dead (which may be inaccurate in some cases), try the old
heuristic.
Closes GH-9353.
A connection string may contain just a single key, but
PHP used ";" as the heuristic to detect if a string was a connection
string versus plain DSN. However, a single-key connection string
would get treated like a DSN name, i.e. "DSN=*LOCAL". This makes it
so that "=" is used, as a connection string must contain a key.
Closes GH-8748.
Because the UID= and PWD= values are appended to the SQLDriverConnect
case when credentials are passed, we have to append them to the string
in case users are relying on this behaviour. However, they must be
quoted, or the arguments will be invalid (or possibly more injected).
This means users had to quote arguments or append credentials to the raw
connection string themselves.
It seems that ODBC quoting rules are consistent enough (and that
Microsoft trusts them enough to encode into the .NET BCL) that we can
actually check if the string is already quoted (in case a user is
already quoting because of this not being fixed), and if not, apply the
appropriate ODBC quoting rules.
This is because the code exists in main/, and are shared between
both ODBC extensions, so it doesn't make sense for it to only exist
in one or the other. There may be a better spot for it.
Closes GH-8307.
If these tests fail with a fatal error, they won't properly clean up,
which likely causes other tests to fail as (several ODBC tests use the
`odbcTEST` database and tables or stored procedures named `FOO`). This
is particularly annoying during development, where you would need to
clean up manually.
We fix this by moving the cleanup code to the --CLEAN-- section, so
that this code is executed no matter what.
Closes GH-7886.
