Module: Chef::Mixin::WindowsEnvHelper

Includes:
WideString, ReservedNames::Win32::API::System
Included in:
Provider::WindowsEnv, Provider::WindowsPath
Defined in:
lib/chef/mixin/windows_env_helper.rb

Constant Summary collapse

HWND_BROADCAST =
0xffff
WM_SETTINGCHANGE =
0x001A
SMTO_BLOCK =
0x0001
SMTO_ABORTIFHUNG =
0x0002
SMTO_NOTIMEOUTIFNOTHUNG =
0x0008

Constants included from ReservedNames::Win32::API::System

ReservedNames::Win32::API::System::PRODUCT_BUSINESS, ReservedNames::Win32::API::System::PRODUCT_BUSINESS_N, ReservedNames::Win32::API::System::PRODUCT_CLUSTER_SERVER, ReservedNames::Win32::API::System::PRODUCT_DATACENTER_SERVER, ReservedNames::Win32::API::System::PRODUCT_DATACENTER_SERVER_CORE, ReservedNames::Win32::API::System::PRODUCT_DATACENTER_SERVER_CORE_V, ReservedNames::Win32::API::System::PRODUCT_DATACENTER_SERVER_V, ReservedNames::Win32::API::System::PRODUCT_ENTERPRISE, ReservedNames::Win32::API::System::PRODUCT_ENTERPRISE_E, ReservedNames::Win32::API::System::PRODUCT_ENTERPRISE_N, ReservedNames::Win32::API::System::PRODUCT_ENTERPRISE_SERVER, ReservedNames::Win32::API::System::PRODUCT_ENTERPRISE_SERVER_CORE, ReservedNames::Win32::API::System::PRODUCT_ENTERPRISE_SERVER_CORE_V, ReservedNames::Win32::API::System::PRODUCT_ENTERPRISE_SERVER_IA64, ReservedNames::Win32::API::System::PRODUCT_ENTERPRISE_SERVER_V, ReservedNames::Win32::API::System::PRODUCT_HOME_BASIC, ReservedNames::Win32::API::System::PRODUCT_HOME_BASIC_E, ReservedNames::Win32::API::System::PRODUCT_HOME_BASIC_N, ReservedNames::Win32::API::System::PRODUCT_HOME_PREMIUM, ReservedNames::Win32::API::System::PRODUCT_HOME_PREMIUM_E, ReservedNames::Win32::API::System::PRODUCT_HOME_PREMIUM_N, ReservedNames::Win32::API::System::PRODUCT_HOME_PREMIUM_SERVER, ReservedNames::Win32::API::System::PRODUCT_HOME_SERVER, ReservedNames::Win32::API::System::PRODUCT_HYPERV, ReservedNames::Win32::API::System::PRODUCT_MEDIUMBUSINESS_SERVER_MANAGEMENT, ReservedNames::Win32::API::System::PRODUCT_MEDIUMBUSINESS_SERVER_MESSAGING, ReservedNames::Win32::API::System::PRODUCT_MEDIUMBUSINESS_SERVER_SECURITY, ReservedNames::Win32::API::System::PRODUCT_PROFESSIONAL, ReservedNames::Win32::API::System::PRODUCT_PROFESSIONAL_E, ReservedNames::Win32::API::System::PRODUCT_PROFESSIONAL_N, ReservedNames::Win32::API::System::PRODUCT_SB_SOLUTION_SERVER, ReservedNames::Win32::API::System::PRODUCT_SERVER_FOR_SMALLBUSINESS, ReservedNames::Win32::API::System::PRODUCT_SERVER_FOR_SMALLBUSINESS_V, ReservedNames::Win32::API::System::PRODUCT_SERVER_FOUNDATION, ReservedNames::Win32::API::System::PRODUCT_SMALLBUSINESS_SERVER, ReservedNames::Win32::API::System::PRODUCT_SOLUTION_EMBEDDEDSERVER, ReservedNames::Win32::API::System::PRODUCT_STANDARD_SERVER, ReservedNames::Win32::API::System::PRODUCT_STANDARD_SERVER_CORE, ReservedNames::Win32::API::System::PRODUCT_STANDARD_SERVER_CORE_V, ReservedNames::Win32::API::System::PRODUCT_STANDARD_SERVER_V, ReservedNames::Win32::API::System::PRODUCT_STARTER, ReservedNames::Win32::API::System::PRODUCT_STARTER_E, ReservedNames::Win32::API::System::PRODUCT_STARTER_N, ReservedNames::Win32::API::System::PRODUCT_STORAGE_ENTERPRISE_SERVER, ReservedNames::Win32::API::System::PRODUCT_STORAGE_EXPRESS_SERVER, ReservedNames::Win32::API::System::PRODUCT_STORAGE_STANDARD_SERVER, ReservedNames::Win32::API::System::PRODUCT_STORAGE_WORKGROUP_SERVER, ReservedNames::Win32::API::System::PRODUCT_ULTIMATE, ReservedNames::Win32::API::System::PRODUCT_ULTIMATE_E, ReservedNames::Win32::API::System::PRODUCT_ULTIMATE_N, ReservedNames::Win32::API::System::PRODUCT_UNDEFINED, ReservedNames::Win32::API::System::PRODUCT_WEB_SERVER, ReservedNames::Win32::API::System::PRODUCT_WEB_SERVER_CORE, ReservedNames::Win32::API::System::SM_SERVERR2, ReservedNames::Win32::API::System::VER_NT_DOMAIN_CONTROLLER, ReservedNames::Win32::API::System::VER_NT_SERVER, ReservedNames::Win32::API::System::VER_NT_WORKSTATION, ReservedNames::Win32::API::System::VER_SUITE_BACKOFFICE, ReservedNames::Win32::API::System::VER_SUITE_BLADE, ReservedNames::Win32::API::System::VER_SUITE_COMPUTE_SERVER, ReservedNames::Win32::API::System::VER_SUITE_DATACENTER, ReservedNames::Win32::API::System::VER_SUITE_EMBEDDEDNT, ReservedNames::Win32::API::System::VER_SUITE_ENTERPRISE, ReservedNames::Win32::API::System::VER_SUITE_PERSONAL, ReservedNames::Win32::API::System::VER_SUITE_SINGLEUSERTS, ReservedNames::Win32::API::System::VER_SUITE_SMALLBUSINESS, ReservedNames::Win32::API::System::VER_SUITE_SMALLBUSINESS_RESTRICTED, ReservedNames::Win32::API::System::VER_SUITE_STORAGE_SERVER, ReservedNames::Win32::API::System::VER_SUITE_TERMINAL, ReservedNames::Win32::API::System::VER_SUITE_WH_SERVER

Instance Method Summary collapse

Methods included from WideString

#utf8_to_wide, #wide_to_utf8, #wstring

Instance Method Details

#broadcast_env_changeObject


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# File 'lib/chef/mixin/windows_env_helper.rb', line 42

def broadcast_env_change
  flags = SMTO_BLOCK | SMTO_ABORTIFHUNG | SMTO_NOTIMEOUTIFNOTHUNG
  # for why two calls, see:
  # http://stackoverflow.com/questions/4968373/why-doesnt-sendmessagetimeout-update-the-environment-variables
  if SendMessageTimeoutA(HWND_BROADCAST, WM_SETTINGCHANGE, 0, FFI::MemoryPointer.from_string("Environment").address, flags, 5000, nil) == 0
    Chef::ReservedNames::Win32::Error.raise!
  end
  if SendMessageTimeoutW(HWND_BROADCAST, WM_SETTINGCHANGE, 0, FFI::MemoryPointer.from_string(
    utf8_to_wide("Environment")
  ).address, flags, 5000, nil) == 0
    Chef::ReservedNames::Win32::Error.raise!
  end
end

#expand_path(path) ⇒ Object


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# File 'lib/chef/mixin/windows_env_helper.rb', line 56

def expand_path(path)
  # http://msdn.microsoft.com/en-us/library/windows/desktop/ms724265%28v=vs.85%29.aspx
  # Max size of env block on windows is 32k
  buf = 0.chr * 32 * 1024
  if ExpandEnvironmentStringsA(path, buf, buf.length) == 0
    Chef::ReservedNames::Win32::Error.raise!
  end
  buf.strip
end