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author | Seth Chisamore <schisamo@opscode.com> | 2012-10-30 10:39:35 -0400 |
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committer | Seth Chisamore <schisamo@opscode.com> | 2012-10-30 10:39:35 -0400 |
commit | 24dc69a9a97e82a6e4207de68d6dcc664178249b (patch) | |
tree | 19bb289c9f88b4bbab066bc56b95d6d222fd5c35 /lib/chef/win32/error.rb | |
parent | 9348c1c9c80ee757354d624b7dc1b78ebc7605c4 (diff) | |
download | chef-24dc69a9a97e82a6e4207de68d6dcc664178249b.tar.gz |
[OC-3564] move core Chef to the repo root \o/ \m/
The opscode/chef repository now only contains the core Chef library code
used by chef-client, knife and chef-solo!
Diffstat (limited to 'lib/chef/win32/error.rb')
-rw-r--r-- | lib/chef/win32/error.rb | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/lib/chef/win32/error.rb b/lib/chef/win32/error.rb new file mode 100644 index 0000000000..716ca99d01 --- /dev/null +++ b/lib/chef/win32/error.rb @@ -0,0 +1,73 @@ +# +# Author:: John Keiser (<jkeiser@opscode.com>) +# Copyright:: Copyright 2011 Opscode, Inc. +# License:: Apache License, Version 2.0 +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +require 'chef/win32/api/error' +require 'chef/win32/memory' +require 'chef/win32/unicode' +require 'chef/exceptions' + +class Chef + module ReservedNames::Win32 + class Error + include Chef::ReservedNames::Win32::API::Error + extend Chef::ReservedNames::Win32::API::Error + + def self.format_message(message_id = 0, args = {}) + flags = args[:flags] || FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ARGUMENT_ARRAY + source = args[:source] + language_id = args[:language_id] || 0 + varargs = args[:varargs] || [:int, 0] + buffer = FFI::MemoryPointer.new :pointer + num_chars = FormatMessageW(flags | FORMAT_MESSAGE_ALLOCATE_BUFFER, source, message_id, language_id, buffer, 0, *varargs) + if num_chars == 0 + raise! + end + + # Extract the string + begin + return buffer.read_pointer.read_wstring(num_chars) + ensure + Chef::ReservedNames::Win32::Memory.local_free(buffer.read_pointer) + end + end + + def self.get_last_error + GetLastError() + end + + # Raises the last error. This should only be called by + # Win32 API wrapper functions, and then only when wrapped + # in an if() statement (since it unconditionally exits) + # === Returns + # nil::: always returns nil when it does not raise + # === Raises + # Chef::Exceptions::Win32APIError::: + def self.raise!(message = nil) + code = get_last_error + msg = format_message(code).strip + formatted_message = "" + formatted_message << message if message + formatted_message << "---- Begin Win32 API output ----\n" + formatted_message << "System Error Code: #{code}\n" + formatted_message << "System Error Message: #{msg}\n" + formatted_message << "---- End Win32 API output ----\n" + raise Chef::Exceptions::Win32APIError, msg + "\n" + formatted_message + end + end + end +end |