Re: [PATCH 13/20] test: Convert testDriver to virObjectLockable

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On 03/08/2018 07:20 AM, Marc Hartmayer wrote:
> The test driver state (@testDriver) uses it's own reference counting
> and locking implementation. Instead of doing that, convert @testDriver
> into a virObjectLockable and use the provided functionalities.
> 
> Signed-off-by: Marc Hartmayer <mhartmay@xxxxxxxxxxxxxxxxxx>
> Reviewed-by: Boris Fiuczynski <fiuczy@xxxxxxxxxxxxxxxxxx>
> ---
>  src/test/test_driver.c | 207 ++++++++++++++++++++++---------------------------
>  1 file changed, 94 insertions(+), 113 deletions(-)
> 
> diff --git a/src/test/test_driver.c b/src/test/test_driver.c
> index 3b55453efe00..f1dd11867143 100644
> --- a/src/test/test_driver.c
> +++ b/src/test/test_driver.c
> @@ -94,7 +94,7 @@ typedef struct _testAuth testAuth;
>  typedef struct _testAuth *testAuthPtr;
>  
>  struct _testDriver {
> -    virMutex lock;
> +    virObjectLockable parent;
>  
>      virNodeInfo nodeInfo;
>      virInterfaceObjListPtr ifaces;
> @@ -127,9 +127,22 @@ typedef struct _testDriver testDriver;
>  typedef testDriver *testDriverPtr;
>  
>  static testDriverPtr defaultPrivconn;

Oh and of course I see the pain associated with changing the name (and
perhaps initializing to NULL just to be painfully obvious).

> -static int defaultConnections;
>  static virMutex defaultLock = VIR_MUTEX_INITIALIZER;
>  

[...]

> @@ -1433,24 +1427,11 @@ testConnectAuthenticate(virConnectPtr conn,
>  static void
>  testDriverCloseInternal(testDriverPtr driver)
>  {
> -    bool dflt = false;
> -
> -    if (driver == defaultPrivconn) {
> -        dflt = true;
> -        virMutexLock(&defaultLock);
> -        if (--defaultConnections) {
> -            virMutexUnlock(&defaultLock);
> -            return;
> -        }
> -    }
> -
> -    testDriverLock(driver);
> -    testDriverFree(driver);
> -
> -    if (dflt) {
> +    virMutexLock(&defaultLock);
> +    bool disposed = !virObjectUnref(driver);

I know it builds, but it's preferable to not intermingle defs inside
code, e.g. change to:

    bool disposed = false;

    virMutexLock(&defaultLock);
    disposed = !virObjectUnref(driver);

Reviewed-by: John Ferlan <jferlan@xxxxxxxxxx>

John

(another one of those things I can do)

> +    if (disposed && driver == defaultPrivconn)
>          defaultPrivconn = NULL;
> -        virMutexUnlock(&defaultLock);
> -    }
> +    virMutexUnlock(&defaultLock);
>  }
>  
>  
[...]

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