ObjFW  Diff

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

#import "OFInitializationFailedException.h"
#import "OFNotOpenException.h"
#import "OFOutOfRangeException.h"
#import "OFReadFailedException.h"
#import "OFWriteFailedException.h"

#ifndef OF_MACOS
extern char **environ;
#else
# include <crt_externs.h>
# define environ (*_NSGetEnviron())
#endif

@interface OFSubprocess ()
- (void)of_getArgv: (char ***)argv
    forProgramName: (OFString *)programName
      andArguments: (OFArray *)arguments;
- (char **)of_environmentForDictionary: (OFDictionary *)dictionary;

				if (posix_spawnattr_setflags(&attr,
				    POSIX_SPAWN_CLOEXEC_DEFAULT) != 0)
					@throw [OFInitializationFailedException
					    exceptionWithClass: self.class];
# endif

				if (posix_spawnp(&_pid, path, &actions, &attr,
				    argv, (env != NULL ? env : environ)) != 0)
					@throw [OFInitializationFailedException
					    exceptionWithClass: self.class];
			} @finally {
				posix_spawn_file_actions_destroy(&actions);
				posix_spawnattr_destroy(&attr);
			}
#else
			if ((_pid = vfork()) == 0) {
				if (env != NULL)
					environ = env;

				close(_readPipe[0]);
				close(_writePipe[1]);
				dup2(_writePipe[0], 0);
				dup2(_readPipe[1], 1);
				execvp(path, argv);

}

- (void)close
{
	if (_readPipe[0] == -1)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (_writePipe[1] != -1)
		[self closeForWriting];

	close(_readPipe[0]);

	if (_pid != -1) {
		kill(_pid, SIGTERM);
		waitpid(_pid, &_status, WNOHANG);
	}