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#
# Author:: John Keiser (<jkeiser@chef.io>)
# Copyright:: Copyright 2011-2016, Chef Software 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/process"
require "chef/win32/api/psapi"
require "chef/win32/error"
require "chef/win32/handle"
require "ffi"
class Chef
module ReservedNames::Win32
class Process
include Chef::ReservedNames::Win32::API::Process
extend Chef::ReservedNames::Win32::API::Process
include Chef::ReservedNames::Win32::API::PSAPI
extend Chef::ReservedNames::Win32::API::PSAPI
def initialize(handle)
@handle = handle
end
attr_reader :handle
def id
Process.get_process_id(handle)
end
def handle_count
Process.get_process_handle_count(handle)
end
def memory_info
Process.get_process_memory_info(handle)
end
def self.get_current_process
Process.new(Handle.new(GetCurrentProcess()))
end
def self.get_process_handle_count(handle)
handle_count = FFI::MemoryPointer.new :uint32
unless GetProcessHandleCount(handle.handle, handle_count)
Chef::ReservedNames::Win32::Error.raise!
end
handle_count.read_uint32
end
def self.get_process_id(handle)
# Must have PROCESS_QUERY_INFORMATION or PROCESS_QUERY_LIMITED_INFORMATION rights
result = GetProcessId(handle.handle)
if result == 0
Chef::ReservedNames::Win32::Error.raise!
end
result
end
def self.is_wow64_process
is_64_bit_process_result = FFI::MemoryPointer.new(:int)
# The return value of IsWow64Process is nonzero value if the API call succeeds.
# The result data are returned in the last parameter, not the return value.
call_succeeded = IsWow64Process(GetCurrentProcess(), is_64_bit_process_result)
# The result is nonzero if IsWow64Process's calling process, in the case here
# this process, is running under WOW64, i.e. the result is nonzero if this
# process is 32-bit (aka :i386).
(call_succeeded != 0) && (is_64_bit_process_result.get_int(0) != 0)
end
# Must have PROCESS_QUERY_INFORMATION or PROCESS_QUERY_LIMITED_INFORMATION rights,
# AND the PROCESS_VM_READ right
def self.get_process_memory_info(handle)
memory_info = PROCESS_MEMORY_COUNTERS.new
unless GetProcessMemoryInfo(handle.handle, memory_info, memory_info.size)
Chef::ReservedNames::Win32::Error.raise!
end
memory_info
end
end
end
end
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