From 519a1d0081f69bbc6e803f0d53cba491663c11f3 Mon Sep 17 00:00:00 2001
From: Able <abl3theabove@gmail.com>
Date: Thu, 3 Feb 2022 13:47:58 -0600
Subject: [PATCH] system calls

---
 ableos/src/arch/x86_64/init.rs |  3 +--
 ableos/src/kmain.rs            | 32 ++++++++++++++++++++++++-----
 ableos/src/lib.rs              |  4 +++-
 ableos/src/scheduler/proc.rs   |  4 ++--
 ableos/src/syscalls.rs         | 37 ++++++++++++++++++++++++++++++++++
 5 files changed, 70 insertions(+), 10 deletions(-)
 create mode 100644 ableos/src/syscalls.rs

diff --git a/ableos/src/arch/x86_64/init.rs b/ableos/src/arch/x86_64/init.rs
index bc80f9b..ea10466 100644
--- a/ableos/src/arch/x86_64/init.rs
+++ b/ableos/src/arch/x86_64/init.rs
@@ -12,9 +12,8 @@ pub fn init() {
     }
     gdt::init();
 
-    use crate::scheduler::Priority;
+    use crate::scheduler::Priority::High;
     let mut scheduler = SCHEDULER.lock();
-    use Priority::*;
     let process_0 = scheduler.new_process(High);
     scheduler.add_process(process_0);
     drop(scheduler);
diff --git a/ableos/src/kmain.rs b/ableos/src/kmain.rs
index c793262..1db66d8 100644
--- a/ableos/src/kmain.rs
+++ b/ableos/src/kmain.rs
@@ -57,11 +57,15 @@ pub fn kernel_main() -> ! {
     use crate::proto_filetable::file::FileLocations;
 
     let mut file_table = FILE_TABLE.lock();
+    /*
     let mut new_file = File::new(FileLocations::Bin, "test".to_string(), "txt".to_string());
 
     new_file.write_bytes(b"Hello, world!");
     file_table.add_file("test", new_file);
 
+
+
+
     let file = file_table.get_file("test");
 
     match file {
@@ -75,10 +79,29 @@ pub fn kernel_main() -> ! {
         }
     }
 
-    use crate::wasm::WasmProgram;
-    let ret = WasmProgram::new_from_bytes(&[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00]);
-    trace!("Binary Valid: {:?}", ret.validate_header());
 
+    */
+
+    let mut new_file = File::new(FileLocations::Bin, "test".to_string(), "txt".to_string());
+    new_file.write_bytes(&[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00]);
+    file_table.add_file("wasm_test", new_file);
+
+    let file = file_table.get_file("wasm_test");
+
+    match file {
+        Some(file) => {
+            let file_bytes = &file.data_pointer;
+
+            use crate::wasm::WasmProgram;
+            let ret = WasmProgram::new_from_bytes(file_bytes);
+            trace!("Binary Valid: {:?}", ret.validate_header());
+        }
+        None => {
+            info!("File not found");
+        }
+    }
+
+    log_version_data();
     sloop()
 }
 
@@ -88,7 +111,6 @@ pub fn tick() {
     data += 1;
 
     crate::kernel_state::KERNEL_STATE.lock().update_state();
-
     // let mut scheduler = SCHEDULER.lock();
     // scheduler.bump_exec();
 
@@ -106,7 +128,7 @@ pub fn cpu_socket_startup() {
 pub fn log_version_data() {
     info!("{} v{}", RELEASE_TYPE, KERNEL_VERSION);
     info!(
-        "Brand String: {:?}",
+        "Brand String: {}",
         master().unwrap().brand_string().unwrap()
     );
 }
diff --git a/ableos/src/lib.rs b/ableos/src/lib.rs
index d241fa5..5e759d1 100644
--- a/ableos/src/lib.rs
+++ b/ableos/src/lib.rs
@@ -12,7 +12,7 @@
     exclusive_range_pattern,
     lang_items,
     naked_functions,
-    slice_pattern,
+    slice_pattern
 )]
 
 /// Contains architecture specific code for aarch64.
@@ -88,3 +88,5 @@ pub use alias_table::*;
 
 pub mod tests;
 pub use tests::*;
+pub mod syscalls;
+pub use syscalls::*;
diff --git a/ableos/src/scheduler/proc.rs b/ableos/src/scheduler/proc.rs
index 53e282f..c44e6ed 100644
--- a/ableos/src/scheduler/proc.rs
+++ b/ableos/src/scheduler/proc.rs
@@ -1,10 +1,10 @@
 //! Process definition and general utilities surrounding them
 
-use super::{capabilities::Capabilities, FileAccessTypes, Priority};
+use super::{capabilities::Capabilities, Priority};
 
 /// Process Identification
 #[derive(Clone, Copy, PartialEq, Debug)]
-
+#[repr(C)]
 pub struct PID(pub usize);
 
 /// A process
diff --git a/ableos/src/syscalls.rs b/ableos/src/syscalls.rs
new file mode 100644
index 0000000..a0d6cb5
--- /dev/null
+++ b/ableos/src/syscalls.rs
@@ -0,0 +1,37 @@
+use crate::proc::PID;
+
+#[repr(C)]
+/// Signals that can be sent to a process
+pub enum Signals {
+    /// Terminate the process
+    Terminate,
+    /// Shutdown the process and allow it to shutdown cleanly
+    Quit,
+}
+
+#[repr(C)]
+pub enum SystemCall {
+    /// Sleep the calling process for the given number of milliseconds
+    ///
+    /// # Arguments
+    ///
+    /// * `ticks` - The number of ticks to sleep for
+    Sleep(u64),
+
+    /// Send a signal to a process
+    ///
+    /// # Arguments
+    ///
+    /// * `pid` - The PID of the process to send the signal to
+    /// * `signal` - The signal to send
+    SendSignal(PID, Signals),
+}
+
+#[no_mangle]
+pub extern "C" fn syscall(call: SystemCall) {
+    // Handle the system call
+    match call {
+        SystemCall::Sleep(ms) => todo!("Sleep for {} ms", ms),
+        SystemCall::SendSignal(process_id, signal) => todo!(),
+    }
+}