automatic archive builder now functional and enabled.

- allocators.cpp: fix: make sure all pool fields are reset in
pool_free_all; correct matrix self-test
- lib: fix self-test
- lib_error: give "informational" return codes values > 100 (allows
multiplexing with percent indicator)
- archive: add clarification to afile_enum; use vfs_load when building
archive (fixes caching problem); add support for progressive archive
creation
- file: allow pp_set_dir's path to end in slash (simplifies other code);
add file_exists
- file_cache: add stats+sanity checks to allocator; improve ExtantBufMgr
find(); add ExactBufOracle to translate padded address returned by Cache
to what was actually allocated; relax infinite-loop check; fix
file_cache_reset
- file_io: refactor callback logic so it can be used by vfs (needed for
vfs_load)
- vfs: vfs_load now supports calling back (required for archive builder)
- vfs_mount: optimize path caching in afile_cb: due to atom_fn system,
string compare can be done via pointer compare
- vfs_optimizer: support auto-build of archive (progressive); improve
should-build-archive check (WIP)
- vfs_path: add util functions (also used in screenshot code)
- vfs_tree: simplify pathname storage
- wposix: mmap bugfix
- main: call progressive archive builder; skip reload when doing so
(documented)
- JSInterface_VFS+scriptglue: add archiveBuilderCancel
- ps/Util: use new vfs_path helper function for cleverer screenshot
naming (correctly handles some being deleted)

This was SVN commit r3578.

source/ps/scripting/JSInterface_VFS.cpp

@@ -5,6 +5,7 @@
 #include "ps/CStr.h"
 #include "ps/VFSUtil.h"
 #include "lib/res/res.h"
+#include "lib/res/file/vfs_optimizer.h"	// ArchiveBuilderCancel
 #include "scripting/ScriptingHost.h"
 #include "scripting/JSConversions.h"
 #include "scripting/JSInterface_VFS.h"
@@ -209,3 +210,13 @@ JSBool JSI_VFS::ReadFileLines( JSContext* cx, JSObject* UNUSED(obj), uintN argc,
 	*rval = OBJECT_TO_JSVAL( line_array );
 	return( JS_TRUE );
 }
+
+
+// vfs_optimizer
+
+JSBool JSI_VFS::ArchiveBuilderCancel(JSContext* cx, JSObject* UNUSED(obj), uintN argc, jsval* argv, jsval* rval )
+{
+	debug_assert( argc == 0 );
+	vfs_opt_cancel();
+	return( JS_TRUE );
+}