:
public static int main (string[] args) {
MainLoop loop = new MainLoop();
try {
string[] spawn_args = {"pkexec", "ls", "-l", "-h"};
string[] spawn_env = Environ.get();
Pid child_pid;
Process.spawn_async ("/",
spawn_args,
spawn_env,
SpawnFlags.SEARCH_PATH | SpawnFlags.DO_NOT_REAP_CHILD,
null,
out child_pid);
ChildWatch.add (child_pid, (pid, status) => {
// Triggered when the child indicated by child_pid exits
Process.close_pid (pid);
loop.quit();
});
loop.run();
} catch (SpawnError e) {
stdout.printf ("Error: %s\n", e.message);
}
return 0;
}
事前
で
おかげでこれはこれは、それが呼び出されている方法である非同期メソッド
public int execute_sync_multiarg_command_pipes(string[] spawn_args) {
debug("Starting to execute async command: "+string.joinv(" ", spawn_args));
spawn_async_with_pipes_output.erase(0, -1); //clear the output buffer
MainLoop loop = new MainLoop();
try {
string[] spawn_env = Environ.get();
Pid child_pid;
int standard_input;
int standard_output;
int standard_error;
Process.spawn_async_with_pipes ("/",
spawn_args,
spawn_env,
SpawnFlags.SEARCH_PATH | SpawnFlags.DO_NOT_REAP_CHILD,
null,
out child_pid,
out standard_input,
out standard_output,
out standard_error);
// capture stdout:
IOChannel output = new IOChannel.unix_new (standard_output);
output.add_watch (IOCondition.IN | IOCondition.HUP, (channel, condition) => {
return process_line (channel, condition, "stdout");
});
// capture stderr:
IOChannel error = new IOChannel.unix_new (standard_error);
error.add_watch (IOCondition.IN | IOCondition.HUP, (channel, condition) => {
return process_line (channel, condition, "stderr");
});
ChildWatch.add (child_pid, (pid, status) => {
// Triggered when the child indicated by child_pid exits
Process.close_pid (pid);
loop.quit();
});
loop.run();
} catch(SpawnError e) {
warning("Failure in executing async command ["+string.joinv(" ", spawn_args)+"] : "+e.message);
spawn_async_with_pipes_output.append(e.message);
}
debug("Completed executing async command["+string.joinv(" ", spawn_args)+"]...");
return 0;
}`
です
p romptが立ち上がり、結果として得られるファイルのリストは、私の "/ root"ディレクトリのものです。
したがって、問題は別の場所にある必要があります。
また、パイプで動作します:
private static bool process_line (IOChannel channel, IOCondition condition, string stream_name) {
if (condition == IOCondition.HUP) {
stdout.printf ("%s: The fd has been closed.\n", stream_name);
return false;
}
try {
string line;
channel.read_line (out line, null, null);
stdout.printf ("%s: %s", stream_name, line);
} catch (IOChannelError e) {
stdout.printf ("%s: IOChannelError: %s\n", stream_name, e.message);
return false;
} catch (ConvertError e) {
stdout.printf ("%s: ConvertError: %s\n", stream_name, e.message);
return false;
}
return true;
}
public static int main (string[] args) {
MainLoop loop = new MainLoop();
try {
string[] spawn_args = {"pkexec", "ls", "-l", "-h"};
string[] spawn_env = Environ.get();
Pid child_pid;
int standard_input;
int standard_output;
int standard_error;
Process.spawn_async_with_pipes ("/",
spawn_args,
spawn_env,
SpawnFlags.SEARCH_PATH | SpawnFlags.DO_NOT_REAP_CHILD,
null,
out child_pid,
out standard_input,
out standard_output,
out standard_error);
// stdout:
IOChannel output = new IOChannel.unix_new (standard_output);
output.add_watch (IOCondition.IN | IOCondition.HUP, (channel, condition) => {
return process_line (channel, condition, "stdout");
});
// stderr:
IOChannel error = new IOChannel.unix_new (standard_error);
error.add_watch (IOCondition.IN | IOCondition.HUP, (channel, condition) => {
return process_line (channel, condition, "stderr");
});
ChildWatch.add (child_pid, (pid, status) => {
// Triggered when the child indicated by child_pid exits
Process.close_pid (pid);
loop.quit();
});
loop.run();
} catch (SpawnError e) {
stdout.printf ("Error: %s\n", e.message);
}
return 0;
}
これでも(今あなたの例のコードの断片を含む)は動作します:
StringBuilder spawn_async_with_pipes_output;
private static bool process_line (IOChannel channel, IOCondition condition, string stream_name) {
if (condition == IOCondition.HUP) {
stdout.printf ("%s: The fd has been closed.\n", stream_name);
return false;
}
try {
string line;
channel.read_line (out line, null, null);
stdout.printf ("%s: %s", stream_name, line);
} catch (IOChannelError e) {
stdout.printf ("%s: IOChannelError: %s\n", stream_name, e.message);
return false;
} catch (ConvertError e) {
stdout.printf ("%s: ConvertError: %s\n", stream_name, e.message);
return false;
}
return true;
}
public int execute_sync_multiarg_command_pipes(string[] spawn_args) {
debug("Starting to execute async command: "+string.joinv(" ", spawn_args));
spawn_async_with_pipes_output.erase(0, -1); //clear the output buffer
MainLoop loop = new MainLoop();
try {
string[] spawn_env = Environ.get();
Pid child_pid;
int standard_input;
int standard_output;
int standard_error;
Process.spawn_async_with_pipes ("/",
spawn_args,
spawn_env,
SpawnFlags.SEARCH_PATH | SpawnFlags.DO_NOT_REAP_CHILD,
null,
out child_pid,
out standard_input,
out standard_output,
out standard_error);
// capture stdout:
IOChannel output = new IOChannel.unix_new (standard_output);
output.add_watch (IOCondition.IN | IOCondition.HUP, (channel, condition) => {
return process_line (channel, condition, "stdout");
});
// capture stderr:
IOChannel error = new IOChannel.unix_new (standard_error);
error.add_watch (IOCondition.IN | IOCondition.HUP, (channel, condition) => {
return process_line (channel, condition, "stderr");
});
ChildWatch.add (child_pid, (pid, status) => {
// Triggered when the child indicated by child_pid exits
Process.close_pid (pid);
loop.quit();
});
loop.run();
} catch(SpawnError e) {
warning("Failure in executing async command ["+string.joinv(" ", spawn_args)+"] : "+e.message);
spawn_async_with_pipes_output.append(e.message);
}
debug("Completed executing async command["+string.joinv(" ", spawn_args)+"]...");
return 0;
}
public static int main (string[] args) {
spawn_async_with_pipes_output = new StringBuilder();
execute_sync_multiarg_command_pipes ({"pkexec", "ls", "-l", "-h"});
return 0;
}
いくつかのことを。 LinuxやWindowsを使用していますか?あなたのリンクを確認することができます。それは私のために働いていません。第3に、あなたが参照しているドキュメントが 'spawn_async'のものであるときになぜ' spawn_async_with_pipes'を使用していますか?ちょっと興味があるんだけど。あなたは素晴らしい質問をします。 – oldtechaa
@oldtechaa Windows用のポリシーキットポートはありますか? –
[MVCE](https://stackoverflow.com/help/mcve)(具体的には最小限のコード例)を用意してください。 –