spoon-0.0.4/0000755000004100000410000000000012142217074012701 5ustar www-datawww-dataspoon-0.0.4/examples/0000755000004100000410000000000012142217074014517 5ustar www-datawww-dataspoon-0.0.4/examples/vi.rb0000644000004100000410000000112412142217074015460 0ustar www-datawww-data# 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 'spoon' Spoon.spawnp 'vi' Process.waitall spoon-0.0.4/examples/ls.rb0000644000004100000410000000164612142217074015471 0ustar www-datawww-data# 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 'spoon' # # Do a recursive ls on the current directory, redirecting output to /tmp/ls.out # file_actions = Spoon::FileActions.new file_actions.close(1) file_actions.open(1, "/tmp/ls.out", File::WRONLY | File::TRUNC | File::CREAT, 0600) spawn_attr = Spoon::SpawnAttributes.new pid = Spoon.posix_spawn('/usr/bin/env', file_actions, spawn_attr, %w(env ls -R)) Process.waitpid(pid) spoon-0.0.4/LICENSE0000644000004100000410000002201612142217074013707 0ustar www-datawww-dataApache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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END OF TERMS AND CONDITIONS spoon-0.0.4/spoon.gemspec0000644000004100000410000000062112142217074015403 0ustar www-datawww-dataGem::Specification.new do |s| s.name = "spoon" s.version = "0.0.4" s.authors = ["Charles Oliver Nutter"] s.date = "2013-03-29" s.description = s.summary = "Spoon is an FFI binding of the posix_spawn function (and Windows equivalent), providing fork+exec functionality in a single shot." s.files = `git ls-files`.lines.map(&:chomp) s.require_paths = ["lib"] s.add_dependency('ffi') end spoon-0.0.4/metadata.yml0000644000004100000410000000307212142217074015206 0ustar www-datawww-data--- !ruby/object:Gem::Specification name: spoon version: !ruby/object:Gem::Version prerelease: version: 0.0.4 platform: ruby authors: - Charles Oliver Nutter autorequire: bindir: bin cert_chain: [] date: 2013-03-29 00:00:00.000000000 Z dependencies: - !ruby/object:Gem::Dependency name: ffi version_requirements: !ruby/object:Gem::Requirement requirements: - - '>=' - !ruby/object:Gem::Version version: '0' none: false requirement: !ruby/object:Gem::Requirement requirements: - - '>=' - !ruby/object:Gem::Version version: '0' none: false prerelease: false type: :runtime description: Spoon is an FFI binding of the posix_spawn function (and Windows equivalent), providing fork+exec functionality in a single shot. email: executables: [] extensions: [] extra_rdoc_files: [] files: - LICENSE - examples/ls.rb - examples/vi.rb - lib/spoon.rb - lib/spoon/unix.rb - lib/spoon/windows.rb - spoon.gemspec homepage: licenses: [] post_install_message: rdoc_options: [] require_paths: - lib required_ruby_version: !ruby/object:Gem::Requirement requirements: - - '>=' - !ruby/object:Gem::Version version: '0' none: false required_rubygems_version: !ruby/object:Gem::Requirement requirements: - - '>=' - !ruby/object:Gem::Version version: '0' none: false requirements: [] rubyforge_project: rubygems_version: 1.8.24 signing_key: specification_version: 3 summary: Spoon is an FFI binding of the posix_spawn function (and Windows equivalent), providing fork+exec functionality in a single shot. test_files: [] spoon-0.0.4/lib/0000755000004100000410000000000012142217074013447 5ustar www-datawww-dataspoon-0.0.4/lib/spoon.rb0000644000004100000410000000124612142217074015135 0ustar www-datawww-data# 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 'rbconfig' if RbConfig::CONFIG['host_os'] =~ /mingw|mswin|bccwin/ require 'spoon/windows' else require 'spoon/unix' end spoon-0.0.4/lib/spoon/0000755000004100000410000000000012142217074014605 5ustar www-datawww-dataspoon-0.0.4/lib/spoon/windows.rb0000644000004100000410000000307512142217074016631 0ustar www-datawww-data# 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. # Windows _spawnv require 'ffi' module Spoon P_NOWAIT = 1 attach_function :_spawnve, [:int, :string, :pointer, :pointer], :int attach_function :_spawnvpe, [:int, :string, :pointer, :pointer], :int ffi_lib 'kernel32' ffi_convention :stdcall attach_function :_get_process_id, :GetProcessId, [:int], :ulong def self.spawn(*args) spawn_args = _prepare_spawn_args(args) _get_process_id(_spawnve(*spawn_args)) end def self.spawnp(*args) spawn_args = _prepare_spawn_args(args) _get_process_id(_spawnvpe(*spawn_args)) end private def self._prepare_spawn_args(args) args_ary = FFI::MemoryPointer.new(:pointer, args.length + 1) str_ptrs = args.map {|str| FFI::MemoryPointer.from_string(str)} args_ary.put_array_of_pointer(0, str_ptrs) env_ary = FFI::MemoryPointer.new(:pointer, ENV.length + 1) env_ptrs = ENV.map {|key,value| FFI::MemoryPointer.from_string("#{key}=#{value}")} env_ary.put_array_of_pointer(0, env_ptrs) [P_NOWAIT, args[0], args_ary, env_ary] end end spoon-0.0.4/lib/spoon/unix.rb0000644000004100000410000001316612142217074016124 0ustar www-datawww-data# 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. # UNIX posix_spawn require 'ffi' module Spoon class FileActions attr_reader :pointer SIZE = FFI::Platform.mac? ? FFI.type_size(:pointer) : 128 def initialize @pointer = FFI::AutoPointer.new(LibC.malloc(SIZE), Releaser) error = LibC.posix_spawn_file_actions_init(@pointer) raise SystemCallError.new("posix_file_actions_init", error) unless error == 0 end class Releaser def self.call(ptr) LibC.posix_spawn_file_actions_destroy(ptr) LibC.free(ptr) end end def open(fd, path, oflag, mode) error = LibC.posix_spawn_file_actions_addopen(@pointer, fd, path, oflag, mode) raise SystemCallError.new("posix_file_actions_addopen", error) unless error == 0 self end def close(fd) error = LibC.posix_spawn_file_actions_addclose(@pointer, fd) raise SystemCallError.new("posix_file_actions_addclose", error) unless error == 0 self end def dup2(fd, newfd) error = LibC.posix_spawn_file_actions_adddup2(@pointer, fd, newfd) raise SystemCallError.new("posix_file_actions_adddup2", error) unless error == 0 self end end class SpawnAttributes attr_reader :pointer SIZE = FFI::Platform.mac? ? FFI.type_size(:pointer) : 512 def initialize @pointer = FFI::AutoPointer.new(LibC.malloc(SIZE), Releaser) error = LibC.posix_spawnattr_init(@pointer) raise SystemCallError.new("posix_spawnattr_init", error) unless error == 0 end class Releaser def self.call(ptr) LibC.posix_spawnattr_destroy(ptr) LibC.free(ptr) end end def pgroup=(group) error = LibC.posix_spawnattr_setpgroup(pointer, group) raise SystemCallError.new("posix_spawnattr_setpgroup", error) unless error == 0 group end def pgroup group = FFI::MemoryPointer.new :pid_t error = LibC.posix_spawnattr_getpgroup(pointer, group) raise SystemCallError.new("posix_spawnattr_getpgroup", error) unless error == 0 get_pid(group) end end def self.posix_spawn(path, file_actions, spawn_attr, argv, env = ENV) pid_ptr, argv_ptr, env_ptr = _prepare_spawn_args(argv, env) error = LibC.posix_spawnp(pid_ptr, path, file_actions, spawn_attr, argv_ptr, env_ptr) raise SystemCallError.new(path, error) unless error == 0 get_pid(pid_ptr) end def self.posix_spawnp(file, file_actions, spawn_attr, argv, env = ENV) pid_ptr, argv_ptr, env_ptr = _prepare_spawn_args(argv, env) error = LibC.posix_spawnp(pid_ptr, file, file_actions, spawn_attr, argv_ptr, env_ptr) raise SystemCallError.new(file, error) unless error == 0 get_pid(pid_ptr) end def self.spawn(*args) posix_spawn(args[0], nil, nil, args, ENV) end def self.spawnp(*args) posix_spawnp(args[0], nil, nil, args, ENV) end private class PointerArray def initialize @ary = [] end def <<(ptr) @ary << ptr self end def pointer if @pointer.nil? || (@pointer.size / @pointer.type_size) <= @ary.length ptr = FFI::MemoryPointer.new(:pointer, @ary.length + 1) ptr.put_array_of_pointer(0, @ary) @pointer = ptr end @pointer end end if FFI.type_size(:pid_t) == 4 def self.get_pid(ptr) ptr.get_int32(0) end else def self.get_pid(ptr) ptr.get_int64(0) end end module LibC extend FFI::Library ffi_lib FFI::Library::LIBC class PointerConverter extend FFI::DataConverter native_type FFI::Type::POINTER def self.to_native(value, ctx) value ? value.pointer : nil end end typedef PointerConverter, :file_actions typedef PointerConverter, :spawn_attr typedef PointerConverter, :ptr_array attach_function :posix_spawn, [:pointer, :string, :file_actions, :spawn_attr, :ptr_array, :ptr_array ], :int attach_function :posix_spawnp, [:pointer, :string, :file_actions, :spawn_attr, :ptr_array, :ptr_array ], :int attach_function :posix_spawn_file_actions_init, [ :pointer ], :int attach_function :posix_spawn_file_actions_destroy, [ :pointer ], :int attach_function :posix_spawn_file_actions_adddup2, [ :pointer, :int, :int ], :int attach_function :posix_spawn_file_actions_addclose, [ :pointer, :int ], :int attach_function :posix_spawn_file_actions_addopen, [ :pointer, :int, :string, :int, :mode_t ], :int attach_function :posix_spawnattr_init, [ :pointer ], :int attach_function :posix_spawnattr_destroy, [ :pointer ], :int attach_function :posix_spawnattr_setpgroup, [ :pointer, :pid_t ], :int attach_function :posix_spawnattr_getpgroup, [ :pointer, :pointer ], :int attach_function :malloc, [ :size_t ], :pointer attach_function :free, [ :pointer ], :void attach_function :strerror, [ :int ], :string end def self._prepare_spawn_args(argv, env) pid_ptr = FFI::MemoryPointer.new(:pid_t, 1) args_ary = argv.inject(PointerArray.new) { |ary, str| ary << FFI::MemoryPointer.from_string(str) } env_ary = PointerArray.new env.each_pair { |key, value| env_ary << FFI::MemoryPointer.from_string("#{key}=#{value}") } [pid_ptr, args_ary, env_ary] end end