Spawning Processes process launching with fork()/exec(). Error codes returned by spawning processes. @G_SPAWN_ERROR_FORK: Fork failed due to lack of memory. @G_SPAWN_ERROR_READ: Read or select on pipes failed. @G_SPAWN_ERROR_CHDIR: Changing to working directory failed. @G_SPAWN_ERROR_ACCES: execv() returned %EACCES. @G_SPAWN_ERROR_PERM: execv() returned %EPERM. @G_SPAWN_ERROR_2BIG: execv() returned %E2BIG. @G_SPAWN_ERROR_NOEXEC: execv() returned %ENOEXEC. @G_SPAWN_ERROR_NAMETOOLONG: execv() returned %ENAMETOOLONG. @G_SPAWN_ERROR_NOENT: execv() returned %ENOENT. @G_SPAWN_ERROR_NOMEM: execv() returned %ENOMEM. @G_SPAWN_ERROR_NOTDIR: execv() returned %ENOTDIR. @G_SPAWN_ERROR_LOOP: execv() returned %ELOOP. @G_SPAWN_ERROR_TXTBUSY: execv() returned %ETXTBUSY. @G_SPAWN_ERROR_IO: execv() returned %EIO. @G_SPAWN_ERROR_NFILE: execv() returned %ENFILE. @G_SPAWN_ERROR_MFILE: execv() returned %EMFILE. @G_SPAWN_ERROR_INVAL: execv() returned %EINVAL. @G_SPAWN_ERROR_ISDIR: execv() returned %EISDIR. @G_SPAWN_ERROR_LIBBAD: execv() returned %ELIBBAD. @G_SPAWN_ERROR_FAILED: Some other fatal failure, error->message should explain. Error domain for spawning processes. Errors in this domain will be from the #GSpawnError enumeration. See #GError for information on error domains. Flags passed to g_spawn_sync(), g_spawn_async() and g_spawn_async_with_pipes(). @G_SPAWN_LEAVE_DESCRIPTORS_OPEN: the parent's open file descriptors will be inherited by the child; otherwise all descriptors except stdin/stdout/stderr will be closed before calling exec() in the child. @G_SPAWN_DO_NOT_REAP_CHILD: the child will not be automatically reaped; you must call waitpid() or handle SIGCHLD yourself, or the child will become a zombie. @G_SPAWN_SEARCH_PATH: argv[0] need not be an absolute path, it will be looked for in the user's PATH. @G_SPAWN_STDOUT_TO_DEV_NULL: the child's standad output will be discarded, instead of going to the same location as the parent's standard output. @G_SPAWN_STDERR_TO_DEV_NULL: the child's standard error will be discarded. @G_SPAWN_CHILD_INHERITS_STDIN: the child will inherit the parent's standard input (by default, the child's standard input is attached to /dev/null). @G_SPAWN_FILE_AND_ARGV_ZERO: the first element of argv is the file to execute, while the remaining elements are the actual argument vector to pass to the file. Normally g_spawn_async_with_pipes() uses argv[0] as the file to execute, and passes all of argv to the child. Specifies the type of the setup function passed to g_spawn_async(), g_spawn_sync() and g_spawn_async_with_pipes(). It is called in the child after GLib has performed all the setup it plans to perform but before calling exec(). Obviously, actions taken in this function will only affect the child, not the parent. @user_data: user data to pass to the function. @working_directory: @argv: @envp: @flags: @child_setup: @user_data: @child_pid: @standard_input: @standard_output: @standard_error: @error: @Returns: @working_directory: @argv: @envp: @flags: @child_setup: @user_data: @child_pid: @error: @Returns: @working_directory: @argv: @envp: @flags: @child_setup: @user_data: @standard_output: @standard_error: @exit_status: @error: @Returns: @command_line: @error: @Returns: @command_line: @standard_output: @standard_error: @exit_status: @error: @Returns: @pid: