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f1005da47c
This way there's less redundancy, and if the library name changes in the future, it will be changed only in one place. Signed-off-by: Bertrand Lorentz <bertrand.lorentz@gmail.com>
262 lines
10 KiB
C#
262 lines
10 KiB
C#
// glib/Spawn.cs : Spawn g_spawn API wrapper
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//
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// Author: Mike Kestner <mkestner@novell.com>
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//
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// Copyright (c) 2007 Novell, Inc.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the Lesser GNU General
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// Public License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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namespace GLib {
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using System;
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using System.Runtime.InteropServices;
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public enum SpawnError {
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Fork,
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Read,
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Chdir,
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Acces,
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Perm,
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TooBig,
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NoExec,
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NameTooLong,
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NoEnt,
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NoMem,
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NotDir,
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Loop,
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TxtBusy,
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IO,
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NFile,
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MFile,
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Inval,
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IsDir,
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LibBad,
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Failed,
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}
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[Flags]
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public enum SpawnFlags {
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LeaveDescriptorsOpen = 1 << 0,
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DoNotReapChild = 1 << 1,
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SearchPath = 1 << 2,
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StdoutToDevNull = 1 << 3,
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StderrToDevNull = 1 << 4,
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ChildInheritsStdin = 1 << 5,
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FileAndArgvZero = 1 << 6,
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}
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public delegate void SpawnChildSetupFunc ();
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[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
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internal delegate void SpawnChildSetupFuncNative (IntPtr gch);
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internal class SpawnChildSetupWrapper {
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SpawnChildSetupFunc handler;
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public SpawnChildSetupWrapper (SpawnChildSetupFunc handler)
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{
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if (handler == null)
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return;
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this.handler = handler;
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Data = (IntPtr) GCHandle.Alloc (this);
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NativeCallback = new SpawnChildSetupFuncNative (InvokeHandler);
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}
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public IntPtr Data;
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public SpawnChildSetupFuncNative NativeCallback;
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static void InvokeHandler (IntPtr data)
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{
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if (data == IntPtr.Zero)
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return;
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GCHandle gch = (GCHandle) data;
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(gch.Target as SpawnChildSetupWrapper).handler ();
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gch.Free ();
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}
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}
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public class Process {
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public const int IgnorePipe = Int32.MaxValue;
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public const int RequestPipe = 0;
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long pid;
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private Process (int pid)
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{
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this.pid = pid;
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void g_spawn_close_pid (int pid);
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public void Close ()
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{
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g_spawn_close_pid ((int) pid);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool g_spawn_async (IntPtr dir, IntPtr[] argv, IntPtr[] envp, int flags, SpawnChildSetupFuncNative func, IntPtr data, out int pid, out IntPtr error);
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[DllImport (Global.GLibNativeDll)]
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static extern bool g_spawn_async_utf8 (IntPtr dir, IntPtr[] argv, IntPtr[] envp, int flags, SpawnChildSetupFuncNative func, IntPtr data, out int pid, out IntPtr error);
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public static bool SpawnAsync (string working_directory, string[] argv, string[] envp, SpawnFlags flags, SpawnChildSetupFunc child_setup, out Process child_process)
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{
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int pid;
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IntPtr error;
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IntPtr native_dir = Marshaller.StringToPtrGStrdup (working_directory);
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IntPtr[] native_argv = Marshaller.StringArrayToNullTermPointer (argv);
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IntPtr[] native_envp = Marshaller.StringArrayToNullTermPointer (envp);
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SpawnChildSetupWrapper wrapper = new SpawnChildSetupWrapper (child_setup);
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bool result;
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if (Global.IsWindowsPlatform)
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result = g_spawn_async_utf8 (native_dir, native_argv, native_envp, (int) flags, wrapper.NativeCallback, wrapper.Data, out pid, out error);
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else
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result = g_spawn_async (native_dir, native_argv, native_envp, (int) flags, wrapper.NativeCallback, wrapper.Data, out pid, out error);
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child_process = new Process (pid);
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Marshaller.Free (native_dir);
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Marshaller.Free (native_argv);
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Marshaller.Free (native_envp);
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if (error != IntPtr.Zero) throw new GLib.GException (error);
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return result;
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool g_spawn_async_with_pipes (IntPtr dir, IntPtr[] argv, IntPtr[] envp, int flags, SpawnChildSetupFuncNative func, IntPtr data, out int pid, IntPtr stdin, IntPtr stdout, IntPtr stderr, out IntPtr error);
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[DllImport (Global.GLibNativeDll)]
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static extern bool g_spawn_async_with_pipes_utf8 (IntPtr dir, IntPtr[] argv, IntPtr[] envp, int flags, SpawnChildSetupFuncNative func, IntPtr data, out int pid, IntPtr stdin, IntPtr stdout, IntPtr stderr, out IntPtr error);
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public static bool SpawnAsyncWithPipes (string working_directory, string[] argv, string[] envp, SpawnFlags flags, SpawnChildSetupFunc child_setup, out Process child_process, ref int stdin, ref int stdout, ref int stderr)
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{
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int pid;
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IntPtr error;
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IntPtr native_dir = Marshaller.StringToPtrGStrdup (working_directory);
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IntPtr[] native_argv = Marshaller.StringArrayToNullTermPointer (argv);
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IntPtr[] native_envp = Marshaller.StringArrayToNullTermPointer (envp);
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SpawnChildSetupWrapper wrapper = new SpawnChildSetupWrapper (child_setup);
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IntPtr in_ptr = stdin == IgnorePipe ? IntPtr.Zero : Marshal.AllocHGlobal (4);
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IntPtr out_ptr = stdout == IgnorePipe ? IntPtr.Zero : Marshal.AllocHGlobal (4);
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IntPtr err_ptr = stderr == IgnorePipe ? IntPtr.Zero : Marshal.AllocHGlobal (4);
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bool result;
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if (Global.IsWindowsPlatform)
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result = g_spawn_async_with_pipes_utf8 (native_dir, native_argv, native_envp, (int) flags, wrapper.NativeCallback, wrapper.Data, out pid, in_ptr, out_ptr, err_ptr, out error);
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else
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result = g_spawn_async_with_pipes (native_dir, native_argv, native_envp, (int) flags, wrapper.NativeCallback, wrapper.Data, out pid, in_ptr, out_ptr, err_ptr, out error);
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child_process = new Process (pid);
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if (in_ptr != IntPtr.Zero) {
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stdin = Marshal.ReadInt32 (in_ptr);
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Marshal.FreeHGlobal (in_ptr);
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}
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if (out_ptr != IntPtr.Zero) {
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stdout = Marshal.ReadInt32 (out_ptr);
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Marshal.FreeHGlobal (out_ptr);
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}
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if (err_ptr != IntPtr.Zero) {
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stderr = Marshal.ReadInt32 (err_ptr);
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Marshal.FreeHGlobal (err_ptr);
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}
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Marshaller.Free (native_dir);
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Marshaller.Free (native_argv);
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Marshaller.Free (native_envp);
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if (error != IntPtr.Zero) throw new GLib.GException (error);
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return result;
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool g_spawn_sync (IntPtr dir, IntPtr[] argv, IntPtr[] envp, int flags, SpawnChildSetupFuncNative func, IntPtr data, out IntPtr stdout, out IntPtr stderr, out int exit_status, out IntPtr error);
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[DllImport (Global.GLibNativeDll)]
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static extern bool g_spawn_sync_utf8 (IntPtr dir, IntPtr[] argv, IntPtr[] envp, int flags, SpawnChildSetupFuncNative func, IntPtr data, out IntPtr stdout, out IntPtr stderr, out int exit_status, out IntPtr error);
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public static bool SpawnSync (string working_directory, string[] argv, string[] envp, SpawnFlags flags, SpawnChildSetupFunc child_setup, out string stdout, out string stderr, out int exit_status)
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{
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IntPtr native_stdout, native_stderr, error;
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IntPtr native_dir = Marshaller.StringToPtrGStrdup (working_directory);
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IntPtr[] native_argv = Marshaller.StringArrayToNullTermPointer (argv);
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IntPtr[] native_envp = Marshaller.StringArrayToNullTermPointer (envp);
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SpawnChildSetupWrapper wrapper = new SpawnChildSetupWrapper (child_setup);
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bool result;
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if (Global.IsWindowsPlatform)
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result = g_spawn_sync (native_dir, native_argv, native_envp, (int) flags, wrapper.NativeCallback, wrapper.Data, out native_stdout, out native_stderr, out exit_status, out error);
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else
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result = g_spawn_sync (native_dir, native_argv, native_envp, (int) flags, wrapper.NativeCallback, wrapper.Data, out native_stdout, out native_stderr, out exit_status, out error);
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Marshaller.Free (native_dir);
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Marshaller.Free (native_argv);
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Marshaller.Free (native_envp);
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stdout = Marshaller.PtrToStringGFree (native_stdout);
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stderr = Marshaller.PtrToStringGFree (native_stderr);
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if (error != IntPtr.Zero) throw new GLib.GException (error);
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return result;
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool g_spawn_command_line_async (IntPtr cmdline, out IntPtr error);
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[DllImport (Global.GLibNativeDll)]
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static extern bool g_spawn_command_line_async_utf8 (IntPtr cmdline, out IntPtr error);
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public static bool SpawnCommandLineAsync (string command_line)
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{
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IntPtr error;
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IntPtr native_cmd = Marshaller.StringToPtrGStrdup (command_line);
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bool result;
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if (Global.IsWindowsPlatform)
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result = g_spawn_command_line_async_utf8 (native_cmd, out error);
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else
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result = g_spawn_command_line_async (native_cmd, out error);
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Marshaller.Free (native_cmd);
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if (error != IntPtr.Zero) throw new GLib.GException (error);
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return result;
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool g_spawn_command_line_sync (IntPtr cmdline, out IntPtr stdout, out IntPtr stderr, out int exit_status, out IntPtr error);
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[DllImport (Global.GLibNativeDll)]
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static extern bool g_spawn_command_line_sync_utf8 (IntPtr cmdline, out IntPtr stdout, out IntPtr stderr, out int exit_status, out IntPtr error);
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public static bool SpawnCommandLineSync (string command_line, out string stdout, out string stderr, out int exit_status)
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{
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IntPtr error, native_stdout, native_stderr;
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IntPtr native_cmd = Marshaller.StringToPtrGStrdup (command_line);
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bool result;
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if (Global.IsWindowsPlatform)
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result = g_spawn_command_line_sync_utf8 (native_cmd, out native_stdout, out native_stderr, out exit_status, out error);
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else
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result = g_spawn_command_line_sync (native_cmd, out native_stdout, out native_stderr, out exit_status, out error);
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Marshaller.Free (native_cmd);
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stdout = Marshaller.PtrToStringGFree (native_stdout);
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stderr = Marshaller.PtrToStringGFree (native_stderr);
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if (error != IntPtr.Zero) throw new GLib.GException (error);
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return result;
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}
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}
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}
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