Function setAsCwd [src]

Changes the current working directory to the open directory handle. This modifies global state and can have surprising effects in multi- threaded applications. Most applications and especially libraries should not call this function as a general rule, however it can have use cases in, for example, implementing a shell, or child process execution. Not all targets support this. For example, WASI does not have the concept of a current working directory.

Prototype

pub fn setAsCwd(self: Dir) !void

Parameters

self: Dir

Source

  pub fn setAsCwd(self: Dir) !void {
    if (native_os == .wasi) {
        @compileError("changing cwd is not currently possible in WASI");
    }
    if (native_os == .windows) {
        var dir_path_buffer: [windows.PATH_MAX_WIDE]u16 = undefined;
        const dir_path = try windows.GetFinalPathNameByHandle(self.fd, .{}, &dir_path_buffer);
        if (builtin.link_libc) {
            return posix.chdirW(dir_path);
        }
        return windows.SetCurrentDirectory(dir_path);
    }
    try posix.fchdir(self.fd);
}  