BRoster: dereference symlinks when building RosterAppInfo

Should fix #15313

Change-Id: Ibd1d4f4195d794841ecddf3534177982cf894bcb
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1803
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

The wonders of signals:
* Since the app_server launched the input_server, it would also get notified
when the latter died via a signal - but LinkReceiver could return B_INTERRUPTED
in that case (it didn't check the return value of port_buffer_size()) which
the app_server misinterpreted and quit itself... this fixes the hanging part
of bug #1298.
* But the input_server still wasn't restarted, because the Registrar had it
still listed as being running. Now, the Registrar checks not just periodically
for died teams, it will also check for it when a new application registers
itself. This fixes the rest of bug #1298.
* Removed the old (disabled) R5 style input_server launch mechanism from the
app_server.
* MessageLooper now prints a bit more information when a port is supposed to
have been deleted.
* The default implementation of MessageLooper::_GetLooperName() is now
returning the name of the semaphore of its BLocker instead of "unnamed
looper".


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22115 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fixes that make Haiku build with gcc 4. Mainly out of the following
categories:
* Missing includes (like <stdlib.h> and <string.h>).
* Linking against $(TARGET_LIBSTDC++) instead of libstdc++.r4.so.
* Local variables shadowing parameters.
* Default parameters in function definitions (as opposed to function
declarations).
* All C++ stuff (nothrow, map, set, vector, min, max,...) must be imported
explicitly from the std:: namespace now.
* "new (sometype)[...]" must read "new sometype[...]", even if sometype is
something like "const char *".
* __FUNCTION__ is no longer a string literal (but a string expression), i.e.
'printf(__FUNCTION__ ": ...\n")' is invalid code.
* A type cast results in a non-lvalue. E.g. "(char *)buffer += bytes"
is an invalid expression.
* "friend class SomeClass" only works when SomeClass is known before.
Otherwise the an inner class with that name is considered as friend.
gcc 4 is much pickier about scopes.
* gcc 4 is generally stricter with respect to type conversions in C.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14878 a95241bf-73f2-0310-859d-f6bbb57e9c96

Clone() didn't copy the registration_time.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13495 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved TRoster out of the BPrivate namespace. It does no longer appear in
any public header.
* Replaced a good deal of the MessageDeliverer's DeliverMessage() versions
by more general ones using the new interface MessagingTargetSet to represent
a set of targets. This simplifies the usage in cases where the caller doesn't
already have the targets in a supported representation.
* Implemented a first approximation of the shutdown process. There is no
GUI yet. Only superficially tested under R5.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13417 a95241bf-73f2-0310-859d-f6bbb57e9c96

Replace APP_STATE_INVALID by APP_STATE_UNREGISTERED which makes more sense.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@485 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added token and registration_time fields and Init() method.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@464 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added classes TRoster, RosterAppInfo and AppInfoList. TRoster will be the *The Roster*, but has currently only unimplemented hooks for the app registration functionality. More to come.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@409 a95241bf-73f2-0310-859d-f6bbb57e9c96

The wonders of signals:
* Since the app_server launched the input_server, it would also get notified
when the latter died via a signal - but LinkReceiver could return B_INTERRUPTED
in that case (it didn't check the return value of port_buffer_size()) which
the app_server misinterpreted and quit itself... this fixes the hanging part
of bug #1298.
* But the input_server still wasn't restarted, because the Registrar had it
still listed as being running. Now, the Registrar checks not just periodically
for died teams, it will also check for it when a new application registers
itself. This fixes the rest of bug #1298.
* Removed the old (disabled) R5 style input_server launch mechanism from the
app_server.
* MessageLooper now prints a bit more information when a port is supposed to
have been deleted.
* The default implementation of MessageLooper::_GetLooperName() is now
returning the name of the semaphore of its BLocker instead of "unnamed
looper".


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22115 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fixes that make Haiku build with gcc 4. Mainly out of the following
categories:
* Missing includes (like <stdlib.h> and <string.h>).
* Linking against $(TARGET_LIBSTDC++) instead of libstdc++.r4.so.
* Local variables shadowing parameters.
* Default parameters in function definitions (as opposed to function
declarations).
* All C++ stuff (nothrow, map, set, vector, min, max,...) must be imported
explicitly from the std:: namespace now.
* "new (sometype)[...]" must read "new sometype[...]", even if sometype is
something like "const char *".
* __FUNCTION__ is no longer a string literal (but a string expression), i.e.
'printf(__FUNCTION__ ": ...\n")' is invalid code.
* A type cast results in a non-lvalue. E.g. "(char *)buffer += bytes"
is an invalid expression.
* "friend class SomeClass" only works when SomeClass is known before.
Otherwise the an inner class with that name is considered as friend.
gcc 4 is much pickier about scopes.
* gcc 4 is generally stricter with respect to type conversions in C.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14878 a95241bf-73f2-0310-859d-f6bbb57e9c96

Clone() didn't copy the registration_time.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13495 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved TRoster out of the BPrivate namespace. It does no longer appear in
any public header.
* Replaced a good deal of the MessageDeliverer's DeliverMessage() versions
by more general ones using the new interface MessagingTargetSet to represent
a set of targets. This simplifies the usage in cases where the caller doesn't
already have the targets in a supported representation.
* Implemented a first approximation of the shutdown process. There is no
GUI yet. Only superficially tested under R5.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13417 a95241bf-73f2-0310-859d-f6bbb57e9c96

Replace APP_STATE_INVALID by APP_STATE_UNREGISTERED which makes more sense.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@485 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added token and registration_time fields and Init() method.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@464 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added classes TRoster, RosterAppInfo and AppInfoList. TRoster will be the *The Roster*, but has currently only unimplemented hooks for the app registration functionality. More to come.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@409 a95241bf-73f2-0310-859d-f6bbb57e9c96