The Linux run-time linker doesn't allow weak references in one library
to be overridden by ones in another. To work around this, we now
declare the runtime functions as weak and perform dynamic checks on
whether the symbols have been resolved and call the fallbacks as local
static functions if they are not present.
This makes it easier for the runtime to change how reference counts are
stored by removing any refcount manipulation from -base when the runtime
provides accessors. This should have no functionality change with
existing runtimes, but will let newer runtimes drop in alternative
representations easily.
In the simple constructors, we were using the pointer functions that use
pointer equality and a hash derrived from the pointer, rather than -isEqual:
and -hash. This led to some subtle and confusingly broken behavior.
Implement a method for getting attribytes of a file system path. Reuse
the implementation of -fileSystemAttributesAtPath: for this purpose but
export the last system errors to the caller. Make
-fileSystemAttributesAtPath: use the new implementation, without
exposing error info to the caller.
Currently, NSURLConnectionDelegate methods were defined as a category of
an NSObject. The same definitions were copied over to a new
NSURLConnectionDelegate protocol, introduced in OSX 10.7.
Declare the NSURLCredentialPersistenceSynchronizable enumeration case to
NSURLCredential persistence options. Since GNUstep does not support
iCloud synchronization for credentials, this case will default to
NSURLCredentialPersistencePermanent.
Improve handling of NSURL authentication methods. Make "HTMLForm"
authentication a no-op as it should be instead of making it fall back to
Basic authentication.
Add stubs for NTLM and Negotiate IIS methods. They should be easily
implementable given the current framework for authentication methods.
Add stubs for ClientCertificate and ServerTrust authentication methods.
A blocker for supporting them is the lack of a Security.framework
implementation (since they rely on SecTrustRef). They would also require
additions to the current SSL handling code for GNUstep https requests.
Also stub the -distinguishedNames property of NSURLProtectionSpace,
which also deals with certificate-related authentication methods.
Add new values for the NSURLCachePolicy enum. Although
NSURLRequestReloadIgnoringLocalAndRemoteCacheData and
NSURLRequestReloadRevalidatingCacheData have been left unimplemented,
the same applies for the reference platform, so not supporting it does
not break API compatibility.
Implement NSMakeCollectable(), an interface which makes CoreFoundation
objects eligible for garbage collection.
Since garbage collection is a totally deprecated API, its implementation
is a no-op, which may cause objects that rely on it to leak. However, it
doesn't look like supporting actual garbage collection at this point
will bring a gain to the project -- and having this function available
will avoid breaking builds that rely on it.
