Use the new scheme format in most places

The graphics subsystem still uses the old format as orbital manually
parses the fpath result.

storage/ided/src/main.rs

@@ -238,14 +238,14 @@ fn daemon(daemon: redox_daemon::Daemon) -> ! {
         .expect("ided: failed to create disk scheme");
 
     let primary_irq_fd = libredox::call::open(
-        &format!("irq:{}", primary_irq),
+        &format!("/scheme/irq/{}", primary_irq),
         flag::O_RDWR | flag::O_NONBLOCK,
         0,
     ).expect("ided: failed to open irq file");
     let mut primary_irq_file = unsafe { File::from_raw_fd(primary_irq_fd as RawFd) };
 
     let secondary_irq_fd = libredox::call::open(
-        &format!("irq:{}", secondary_irq),
+        &format!("/scheme/irq/{}", secondary_irq),
         flag::O_RDWR | flag::O_NONBLOCK,
         0,
     ).expect("ided: failed to open irq file");

storage/lived/src/main.rs

@@ -46,7 +46,7 @@ impl DiskScheme {
         let mut size = 0;
 
         // TODO: handle error
-        for line in std::fs::read_to_string("sys:env").context("failed to read env")?.lines() {
+        for line in std::fs::read_to_string("/scheme/sys/env").context("failed to read env")?.lines() {
             let mut parts = line.splitn(2, '=');
             let name = parts.next().unwrap_or("");
             let value = parts.next().unwrap_or("");
@@ -69,7 +69,7 @@ impl DiskScheme {
         let size = end - start;
 
         let the_data = unsafe {
-            let file = File::open("memory:physical")?;
+            let file = File::open("/scheme/memory/physical")?;
             let base = libredox::call::mmap(MmapArgs {
                 fd: file.as_raw_fd() as usize,
                 addr: core::ptr::null_mut(),

storage/nvmed/src/nvme/cq_reactor.rs

@@ -66,7 +66,7 @@ struct CqReactor {
 impl CqReactor {
     fn create_event_queue(int_sources: &mut InterruptSources) -> Result<File> {
         use libredox::flag::*;
-        let fd = libredox::call::open("event:", O_CLOEXEC | O_RDWR, 0)?;
+        let fd = libredox::call::open("/scheme/event", O_CLOEXEC | O_RDWR, 0)?;
         let mut file = unsafe { File::from_raw_fd(fd as RawFd) };
 
         for (num, irq_handle) in int_sources.iter_mut() {