Previously we would compile in implementaitions of native calls for
IO functions that would never be used. This CL provides implementations
that throw a Dart exception if they're called by mistake. It also uses
a DART_IO_DISABLED preprocessor define to clean up the build files and
check that we're not including code we shouldn't.
R=iposva@google.com, johnmccutchan@google.com
Review URL: https://codereview.chromium.org/1839463002 .
Split directory_posix -> directory_(android|linux|macos)
This allows us to cleanly make Android-specific changes to
directory_android.cc
Copy all _linux files to _android files and edit as needed to account
for the differences between Linux and Android:
+ getcwd(0, NULL) doesn't work on Android, have to emulate
+ Android doesn't have a '/tmp' directory, have to emulate
+ Android doesn't provide mkdtemp(), have to emulate.
+ Small differences in the available system include files.
+ Use pthread_cond_timedwait_monotonic instead of
pthread_condattr_setclock
Review URL: https://chromiumcodereview.appspot.com//10826233
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10613 260f80e4-7a28-3924-810f-c04153c831b5