curt [Wed, 5 Dec 2001 22:31:03 +0000 (22:31 +0000)]
In certain degenerate situations on the FlightGear side when the flight
model math blows up, the lat/lon could be nan. Thus updateLocal() could
potentially called with nan arguments if FlightGear is reiniting from a
blown up state. This is a bug in FlightGear, but I've added a simple
check to catch this so updateLocal() is robust if called under these
circumstances.
curt [Tue, 27 Nov 2001 03:17:43 +0000 (03:17 +0000)]
Christian M. says it's bad to chain one constructor call from another.
I can't find anything that addresses this in Stroustrup, but I also don't
see them doing this in any of their examples. So I have rewritten this
instance to use default arguments to accomplish the same thing. I imagine
there are other instances of this same sort of thing in other classes to
be fixed at a later date.
- added sg_xml_exception class
- changed return type of readXML from bool to void (uses an exception
to report problems now)
- removed XMLVisitor::error callback
- declared new readXML function that uses a path rather than a stream
- modified existing readXML function to take an optional path parameter
- implemented sg_xml_exception class
- implemented new readXML function with path instead of stream
- modified existing readXML function to use optional path parameter
- modified readXML to throw exceptions rather than returning a bool
value on error
- modified both readProperties functions to return void, and modified
file-name variant to invoke new readXML function
- readProperties and writeProperties will now throw exceptions if there
are file I/O problems
- replace error messages with exceptions
- tunnel sg_io_exception through from nested property read, since
the C-based Expat code cannot handle exceptions
- changed default value of "archive" attribute from "y" to "n"
- modified to write out non-archivable parents if they have an
archivable descendant (i.e. archive="n" no longer kills a whole
subbranch); this makes sense now that archive defaults to "n".
- don't save the flags -- let the program handle them itself
- produce slightly less verbose output; omit n="0" in elements
curt [Thu, 28 Jun 2001 21:53:46 +0000 (21:53 +0000)]
- removed all reference to SGValue
- renamed UNKNOWN to UNSPECIED and setUnknownValue to
setUnspecifiedValue
- modified routines to use 'read', 'write', and 'archive' attribute
for access-mode attributes (only if non-default; they all default to
'y')
- modified write routine to honour ARCHIVE attribute (won't write
subtree if ARCHIVE is not set)
curt [Thu, 28 Jun 2001 21:53:34 +0000 (21:53 +0000)]
- made getValue methods protected, so that they won't be invoked outside
the class
- renamed UNKNOWN to UNSPECIED and setUnknownValue to
setUnspecifiedValue
- added access-mode attributes
- added methods for setting and querying access-mode attributes
curt [Thu, 28 Jun 2001 21:53:24 +0000 (21:53 +0000)]
- attempting to tie an aliased node now fails; the node must be
unaliased first
- renamed UNKNOWN to UNSPECIED and setUnknownValue to
setUnspecifiedValue
- modified get*Value and set*Value methods to respect READ and WRITE
attributes
curt [Thu, 28 Jun 2001 21:53:10 +0000 (21:53 +0000)]
- added SGCommandState class so that commands can compile and save
copies of their arguments
- modified prototype for command functions -- they now take a pointer
to a pointer of an SGCommandState object (which they will normally
subclass) so that they can cache state between invocations
- commented out convenience execute methods until they're actually
needed
curt [Tue, 12 Jun 2001 02:49:32 +0000 (02:49 +0000)]
- added SGPropertyNode::Type
- changed return type of SGPropertyNode::getType methods from
SGValue::Type to SGPropertyNode::Type
- made SGPropertyNode::getValue and SGPropertyNode::hasValue private
so that applications cannot get at SGValue instances (SGValue is
slated for removal)
curt [Wed, 6 Jun 2001 14:57:58 +0000 (14:57 +0000)]
- fixed XML syntax error with missing '"' for some attribute values
that was preventing fgfs save/restore from working
- ensured that aliases always appear standalone
curt [Tue, 15 May 2001 21:31:35 +0000 (21:31 +0000)]
We have to add a few more libs to a couple link lines in order to make
irix happy because it tries to resolve dependencies even if they are
eventually never used.
curt [Tue, 15 May 2001 19:26:22 +0000 (19:26 +0000)]
Attempt to resolve ambiguity between #include <config.h> for simgear vs.
flightgear, especially when this occurs in a simgear .hxx file. This is
now expressly forbidden, and will cause problems anyways because we now
changed the name to <simgear_config.h> which isn't installed, so you can't
include it in an installed header file.
iAdded new classes to simgear/threads. SGGuard is a wrapper around a
mutex that unlocks the mutex when the SGGuard object goes out of scope.
The SGxxxQueue<T> template family factor out the common behaviour we
need for passing data between threads.
Added support for byte swapping based on endianess. Note the assumption is
that files are stored in little endian order so if reads or writes are done
from a big endian machine, the contents must be byte swapped.