Add process stuff

src/lib.rs

@@ -12,6 +12,7 @@ pub use abi::path;
 pub mod alloc;
 pub mod debug;
 pub mod netc;
+pub mod process;
 pub mod sys;
 pub mod time;
 

src/process.rs

@@ -0,0 +1,6 @@
+//! Process management data types
+
+pub use abi::process::{SpawnOption, SpawnOptions};
+
+/// Status code returned when a process terminates
+pub type ExitStatus = i32;

src/sys.rs

@@ -7,6 +7,7 @@ use abi::{
         DirectoryEntry, FileAttr, FileMode, MountOptions, OpenOptions, RawFd, SeekFrom,
         UnmountOptions,
     },
+    process::SpawnOptions,
     syscall::SyscallFunction,
 };
 
@@ -316,3 +317,17 @@ pub unsafe fn get_metadata(
 pub unsafe fn seek(fd: RawFd, pos: SeekFrom) -> Result<u64, Error> {
     u64::from_syscall_result(syscall!(SyscallFunction::Seek, argn!(fd.0), argn!(u64::from(pos))))
 }
+
+///
+pub unsafe fn spawn(options: &SpawnOptions<'_>) -> Result<u32, Error> {
+    u32::from_syscall_result(syscall!(SyscallFunction::Spawn, argp!(options as *const _)))
+}
+
+///
+pub unsafe fn wait_process(pid: u32, status: &mut i32) -> Result<(), Error> {
+    <()>::from_syscall_result(syscall!(
+        SyscallFunction::WaitProcess,
+        argn!(pid),
+        argp!(status as *mut _)
+    ))
+}