181 lines
5.8 KiB
Plaintext
181 lines
5.8 KiB
Plaintext
Whistler
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========
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<HIGH>
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1. SWbemPropertyEx::AddValues and DeleteValues - these are assuming that
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construction of the SWbemProperty object from SWbemPropertySet::Item
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is "cheap" and does not require retrieval of the property value. This in
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turn assumes that the IWbemClassObject::Get call does not force the
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UMI provider to get the value when the VARIANT *pVar argument passed in
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is NULL. We need to check this assumption.
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[WMI RAID 1930, NT RAID 139298]
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2. Remove Members_? What's happening?
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[WMI RAID 2408]
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3. Need to migrate from IUmiCustomInterfaceFactory to IWbemComBinding.
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- Need to document use of IADsExtension for scriptable extensions
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- Have some issues with COM binding interface
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4. Whenever we create a new CSWbemObject, we need to potentially pass in
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information that allows us to record the Security Descriptor settings used to
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retrieve that object. The only reason we need this is so that the Path_
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property can record those settings. A bit of a pain.
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Since this can occur in many operations we need a helper object
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to calculate the SD settings from the context and the flags.
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5. CopyTo not supported in the DS any more. Should we keep the API in WMI
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Scripting right now? What about SWbemServices.Copy?
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[WMI RAID 2423]
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6. Still wiating for Unlink Flags definition from core.
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[WMI RAID 1933]
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7. WBEM_MULTI_FLAG??
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8. Might need a flag to SWbemServices::Delete to indicate "recursive delete".
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[WMI RAID 2429]
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9. Change all occurences of UMI to WMI. (note effect that this changes wmi: prefix
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semantics from old style to new style paths)
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[WMI RAID 2439]
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10. SWbemObject._NewEnum, SWBemObject.Filter_, SWbemObject.Members_ and
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SWbemServices.Filter_, SwbemServices._NewEnum all rely on pan-provider
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support for the following queries:
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- select * from Class1 GO select * from Class2
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- CreateInstanceEnum("*")
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But it appears that these features are in doubt. So do we drop this?
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[NT RAID 134996, 137260]
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11. Currently IWbemConnection:Open calls fail against downlevel boxes. Not good.
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Even if they work, if we only allow IWbemServices and not IWbemServicesEx
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then there could be some major changes required.
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[NT RAID 135008]
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<MEDIUM>
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1. Work out which new bits justify the HandleNull override.
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2. Integrate Jeff's async fixes into the Whistler codebase.
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3. Improved Discovery of Propagated Methods & Properties (not sure I remember what this is).
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4. FLAGS and Error Codes - sanity check from time to time
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5. Why do VB Arrays have to be weakly typed when passing to a method invocation?
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6. Do we need to use IWbemServices::PutObject and PutObjectAsync - why isn't
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it sufficient to look at __GENUS?
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<BLACKCOMB>
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1. SWbemObject:
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- Fix ability to support named parameters in WMI Schema Methods?
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- Define a cache of ISWbemServicesEx pointers for an SWbemObject (keyed on
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mode, strselector). This would enable us to avoid calling Open every time
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an implicit coercion is made on SWbemObject to a container or scope.
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========================= OLD STUFF ================================================
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Post NT4 SP4
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=============
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1. WBEM_FLAG_ENSURE_LOCATABLE - means too many properties returned
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2. Handle WBEM_S_DUPLICATE_OBJECT
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3. Optimize Property/Qualifier/Context/Method iteration so that if there is only one iterator then
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the underlying COM interface is used directly.
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4. Optimize use of IWbemServices to reuse cached connections.
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Language Feature Support Testing
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================================
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1. Null value passing
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VBScript - Use the "null" value
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JScript - Use the "null" value
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Perl (CPAN) - Use Variant(VT_NULL, 0)
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Perl (AS) - returns undefined (i.e. defined(val) returns false) OK
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passing unassigned value into Perl causes it to translate it to 0(VT_I4)
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2. Array value detection
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VBScript - fine; use IsArray
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JScript - 3.0 is broken - have to wait for 5.0 and try/catch
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Perl - Dunno
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3. Array passing -
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VB
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Can set array values into COM OK
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Can read array values from COM OK
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Can read individual array element values using Class.Prop(x) OK
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Can set individual array element values
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(NB: LBound and UBound on an IWbemProperty do not trigger a call to the default Property,
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this behavior is different from VBS,)
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VBScript
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array values can be passed in either way across COM boundary
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array assignments can be made OK
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individual array element assignments can be made OK
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Perl (AS)
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array values can be passed in both directions (to pass into COM must use \@ to reference array),
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have to check array and array element assignments - these are OK mostly
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JScript
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- need to use the VBArray function to wrap a SAFEARRAY passed from COM - this works.
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- passing JScript arrays to COM works with IDispatchEx handling
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- array element and array assignments work OK.
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- individual array element assignments can't be made
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4. Error handling
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VBScript - Use the Err mechanism and set EXCEPINFO - this works
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JScript - Completely bereft of any useful error handling (wait for 5.0)
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Perl - Dunno?
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5. Default member read/write
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VBScript - GETs work fine (but simple default property PUTs don't work; need to specify member otherwise
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VScript treats this as a reassignment of a simple non-object value to the variable)
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By simple is meant assignments of the form
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MyProperty = 25;
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whereas compouns statements which include assignment such as
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Class.Properties_("MyProperty") = 25
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work, as VBScript calls into the Properties_ object on its Item() method with 2 parameters
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("MyProperty" and 25).
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JScript - same as for VBScript
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VB - works fine in both directions
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Perl - doesn't work in general (check new CPAN stuff)
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