Viewing file:  async.py (4.23 KB) -rw-r--r--
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import pygtk; pygtk.require("2.0")
import gtk
import gnomevfs
def task_done():
global counter
counter -= 1
if not counter:
gtk.main_quit()
def write_callback(handle, bytes, exc_type, bytes_requested):
print 'Write done:', handle, bytes, exc_type
handle.close(lambda *args: None)
task_done()
def read_callback(handle, buffer, exc_type, bytes_requested):
print 'Read done:', handle, buffer, exc_type
#handle.close(lambda *args: None)
task_done()
def create_callback(handle, exc_type):
print 'Create done', handle, exc_type
if not exc_type:
handle.write('Hello world!\n', write_callback)
else:
if issubclass(exc_type, gnomevfs.AccessDeniedError):
print "Unable to create file: access denied"
else:
print "Unable to create file: unknown error"
task_done()
def symlink_callback(handle, exc_type):
print 'Symlink done:', handle, exc_type
task_done()
def open_callback(handle, exc_type):
print 'Open done:', handle, exc_type
if not exc_type:
handle.read(14, read_callback)
else:
task_done()
def info_callback(handle, results):
for uri, exc_type, info in results:
print '-'*len(str(uri))
print uri
print '-'*len(str(uri))
if not exc_type:
try:
print 'mime_type:\t', info.mime_type
print 'size (bytes):\t', info.size
print 'permissions:\t%o' % (info.permissions,)
except ValueError:
pass
print
else:
print 'Error:\t', exc_type
task_done()
def dir_callback(handle, results, exc_type):
if not exc_type or exc_type == gnomevfs.EOFError:
for result in results:
print result.name
print '-'*len(str(result.name))
try:
print 'mime_type:\t', result.mime_type
print 'size (bytes):\t', result.size
print 'permissions:\t%o' % (result.permissions,)
except ValueError:
pass
print
if exc_type == gnomevfs.EOFError:
task_done()
else:
print 'Error:\t', exc_type
task_done()
counter = 0
print 'Current job limit:', gnomevfs.async.get_job_limit()
if 1:
counter += 1
print gnomevfs.async.get_file_info(('/etc/fstab',
'http://www.gnome.org/index.html'),
info_callback,
options = gnomevfs.FILE_INFO_DEFAULT |
gnomevfs.FILE_INFO_GET_MIME_TYPE)
if 1:
counter += 1
print gnomevfs.async.load_directory('/etc/skel',
dir_callback,
options =gnomevfs.FILE_INFO_DEFAULT |
gnomevfs.FILE_INFO_GET_MIME_TYPE)
if 1:
counter += 1
print gnomevfs.async.open('/etc/fstab', open_callback)
if 1:
counter += 1
print gnomevfs.async.create('/tmp/test_file', create_callback)
if 1:
counter += 1
print gnomevfs.async.create_symbolic_link('/tmp/test_link',
'/etc/fstab',
symlink_callback)
def find_directory_cb(handle, results):
print "Trash results:", results
task_done()
if 1:
counter += 1
gnomevfs.async.find_directory(near_uri_list=[gnomevfs.URI("file:///home")],
kind=gnomevfs.DIRECTORY_KIND_TRASH,
create_if_needed=False,
find_if_needed=True, permissions=0,
callback=find_directory_cb)
def file_control_callback(handle, result, data):
## In this case, data contains a pointer to a string, not the
## string itself; quite useless from python.
print "file control result: %r" % (result,)
task_done()
def file_control(handle, exc_type):
## this is mostly useless, but I only discovered it after wrapping it.
handle.control("file:test", ' '*256, file_control_callback)
if 1:
counter += 1
print gnomevfs.async.open('/etc/fstab', file_control)
if counter:
gtk.main()
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