rename Proc to Process

kernel/rustkernel/src/console/mod.rs

@@ -13,7 +13,7 @@ pub mod uart;
 
 use crate::{
     fs::file::{devsw, CONSOLE},
-    proc::proc::{procdump, wakeup, Proc},
+    proc::process::{procdump, wakeup, Process},
     sync::mutex::Mutex,
 };
 use core::{ffi::c_void, ptr::addr_of_mut};
@@ -114,7 +114,7 @@ pub fn consoleread(user_dst: i32, mut dst: u64, mut n: i32) -> i32 {
             // Wait until interrupt handler has put
             // some input into cons.buffer.
             while console.read_index == console.write_index {
-                if Proc::current().unwrap().is_killed() {
+                if Process::current().unwrap().is_killed() {
                     // cons.lock.unlock();
                     return -1;
                 }

kernel/rustkernel/src/console/uart.rs

@@ -2,7 +2,7 @@
 #![allow(non_upper_case_globals)]
 
 use crate::{
-    console::consoleintr, proc::proc::wakeup, queue::Queue, sync::mutex::Mutex,
+    console::consoleintr, proc::process::wakeup, queue::Queue, sync::mutex::Mutex,
     trap::InterruptBlocker,
 };
 use core::ptr::addr_of;

kernel/rustkernel/src/fs/file.rs

@@ -4,7 +4,7 @@ use crate::{
     fs::{log, stat::Stat},
     io::pipe::Pipe,
     mem::virtual_memory::copyout,
-    proc::proc::Proc,
+    proc::process::Process,
     sync::{sleeplock::Sleeplock, spinlock::Spinlock},
 };
 use core::ptr::{addr_of_mut, null_mut};
@@ -206,7 +206,7 @@ pub unsafe extern "C" fn fileclose(file: *mut File) {
 /// `addr` is a user virtual address, pointing to a Stat.
 #[no_mangle]
 pub unsafe extern "C" fn filestat(file: *mut File, addr: u64) -> i32 {
-    let proc = Proc::current().unwrap();
+    let proc = Process::current().unwrap();
     let mut stat = Stat::default();
 
     if (*file).kind == FileType::Inode || (*file).kind == FileType::Device {

kernel/rustkernel/src/io/pipe.rs

@@ -4,7 +4,7 @@ use crate::{
         kalloc::{kalloc, kfree},
         virtual_memory::{copyin, copyout},
     },
-    proc::proc::{wakeup, Proc},
+    proc::process::{wakeup, Process},
     sync::spinlock::Spinlock,
 };
 use core::ptr::{addr_of, addr_of_mut};
@@ -88,7 +88,7 @@ impl Pipe {
     }
     pub unsafe fn write(&self, addr: u64, num_bytes: usize) -> Result<usize> {
         let mut i = 0;
-        let proc = Proc::current().unwrap();
+        let proc = Process::current().unwrap();
         let guard = self.lock.lock();
 
         while i < num_bytes {
@@ -116,7 +116,7 @@ impl Pipe {
     #[allow(clippy::while_immutable_condition)]
     pub unsafe fn read(&self, addr: u64, num_bytes: usize) -> Result<usize> {
         let mut i = 0;
-        let proc = Proc::current().unwrap();
+        let proc = Process::current().unwrap();
         let guard = self.lock.lock();
 
         // DOC: pipe-empty

kernel/rustkernel/src/lib.rs

@@ -63,7 +63,7 @@ pub unsafe fn main() -> ! {
         println!("\nxv6 kernel is booting");
         mem::virtual_memory::kvminit();
         mem::virtual_memory::kvminithart();
-        proc::proc::procinit();
+        proc::process::procinit();
         trap::trapinithart();
         arch::riscv::plic::plicinit();
         arch::riscv::plic::plicinithart();
@@ -71,7 +71,7 @@ pub unsafe fn main() -> ! {
         fs::iinit();
         fs::file::fileinit();
         fs::virtio_disk::virtio_disk_init();
-        proc::proc::userinit();
+        proc::process::userinit();
         STARTED = true;
     } else {
         while !STARTED {
@@ -82,7 +82,7 @@ pub unsafe fn main() -> ! {
         arch::riscv::plic::plicinithart();
     }
 
-    proc::proc::scheduler();
+    proc::process::scheduler();
 }
 
 #[panic_handler]

kernel/rustkernel/src/mem/virtual_memory.rs

@@ -7,7 +7,7 @@ use crate::{
         kalloc::{kalloc, kfree},
         memmove, memset,
     },
-    proc::proc::proc_mapstacks,
+    proc::process::proc_mapstacks,
 };
 use core::ptr::{addr_of, addr_of_mut, null_mut};
 

kernel/rustkernel/src/proc/cpu.rs

@@ -1,4 +1,4 @@
-use super::{context::Context, proc::Proc};
+use super::{context::Context, process::Process};
 use crate::arch::riscv::asm::r_tp;
 use core::ptr::{addr_of_mut, null_mut};
 
@@ -8,7 +8,7 @@ pub static mut CPUS: [Cpu; crate::NCPU] = [Cpu::new(); crate::NCPU];
 #[repr(C)]
 #[derive(Copy, Clone)]
 pub struct Cpu {
-    pub proc: *mut Proc,
+    pub proc: *mut Process,
     /// swtch() here to enter scheduler()
     pub context: Context,
     /// Depth of push_off() nesting.

kernel/rustkernel/src/proc/mod.rs

@@ -1,5 +1,4 @@
 pub mod context;
 pub mod cpu;
-#[allow(clippy::module_inception)]
+pub mod process;
-pub mod proc;
 pub mod trapframe;

kernel/rustkernel/src/proc/process.rs

@@ -14,8 +14,8 @@ use core::{
 };
 
 extern "C" {
-    pub static mut proc: [Proc; crate::NPROC];
+    pub static mut proc: [Process; crate::NPROC];
-    pub static mut initproc: *mut Proc;
+    pub static mut initproc: *mut Process;
     pub static mut nextpid: i32;
     pub static mut pid_lock: Spinlock;
     /// Helps ensure that wakeups of wait()ing
@@ -34,11 +34,11 @@ extern "C" {
     pub fn wait(addr: u64) -> i32;
     pub fn procdump();
     pub fn proc_mapstacks(kpgtbl: Pagetable);
-    pub fn proc_pagetable(p: *mut Proc) -> Pagetable;
+    pub fn proc_pagetable(p: *mut Process) -> Pagetable;
     pub fn proc_freepagetable(pagetable: Pagetable, sz: u64);
     pub fn wakeup(chan: *const c_void);
-    pub fn allocproc() -> *mut Proc;
+    pub fn allocproc() -> *mut Process;
-    // pub fn freeproc(p: *mut Proc);
+    // pub fn freeproc(p: *mut Process);
     pub fn uvmalloc(pagetable: Pagetable, oldsz: u64, newsz: u64, xperm: i32) -> u64;
     pub fn uvmdealloc(pagetable: Pagetable, oldsz: u64, newsz: u64) -> u64;
     // pub fn sched();
@@ -50,7 +50,7 @@ pub static NEXT_PID: AtomicI32 = AtomicI32::new(1);
 
 #[repr(C)]
 #[derive(PartialEq, Default)]
-pub enum ProcState {
+pub enum ProcessState {
     #[default]
     Unused,
     Used,
@@ -62,12 +62,12 @@ pub enum ProcState {
 
 /// Per-process state.
 #[repr(C)]
-pub struct Proc {
+pub struct Process {
     pub lock: Spinlock,
 
     // p->lock must be held when using these:
     /// Process state
-    pub state: ProcState,
+    pub state: ProcessState,
     /// If non-zero, sleeping on chan
     pub chan: *mut c_void,
     /// If non-zero, have been killed
@@ -79,7 +79,7 @@ pub struct Proc {
 
     // wait_lock msut be held when using this:
     /// Parent process
-    pub parent: *mut Proc,
+    pub parent: *mut Process,
 
     // These are private to the process, so p->lock need not be held.
     /// Virtual address of kernel stack
@@ -99,11 +99,11 @@ pub struct Proc {
     /// Process name (debugging)
     pub name: [c_char; 16],
 }
-impl Proc {
+impl Process {
-    pub const fn new() -> Proc {
+    pub const fn new() -> Process {
-        Proc {
+        Process {
             lock: Spinlock::new(),
-            state: ProcState::Unused,
+            state: ProcessState::Unused,
             chan: null_mut(),
             killed: 0,
             xstate: 0,
@@ -119,7 +119,7 @@ impl Proc {
             name: [0x00; 16],
         }
     }
-    pub fn current() -> Option<&'static mut Proc> {
+    pub fn current() -> Option<&'static mut Process> {
         let _ = crate::trap::InterruptBlocker::new();
         let p = Cpu::current().proc;
         if p.is_null() {
@@ -147,7 +147,7 @@ impl Proc {
         self.chan = null_mut();
         self.killed = 0;
         self.xstate = 0;
-        self.state = ProcState::Unused;
+        self.state = ProcessState::Unused;
     }
 
     /// Kill the process with the given pid.
@@ -161,9 +161,9 @@ impl Proc {
             if p.pid == pid {
                 p.killed = 1;
 
-                if p.state == ProcState::Sleeping {
+                if p.state == ProcessState::Sleeping {
                     // Wake process from sleep().
-                    p.state = ProcState::Runnable;
+                    p.state = ProcessState::Runnable;
                 }
 
                 return true;
@@ -188,9 +188,9 @@ impl Proc {
 
 /// Return the current struct proc *, or zero if none.
 #[no_mangle]
-pub extern "C" fn myproc() -> *mut Proc {
+pub extern "C" fn myproc() -> *mut Process {
-    if let Some(p) = Proc::current() {
+    if let Some(p) = Process::current() {
-        p as *mut Proc
+        p as *mut Process
     } else {
         null_mut()
     }
@@ -204,15 +204,15 @@ pub extern "C" fn allocpid() -> i32 {
 /// Free a proc structure and the data hanging from it, including user pages.
 /// p->lock must be held.
 #[no_mangle]
-pub unsafe extern "C" fn freeproc(p: *mut Proc) {
+pub unsafe extern "C" fn freeproc(p: *mut Process) {
     (*p).free();
 }
 
 /// Pass p's abandoned children to init.
 /// Caller must hold wait_lock.
 #[no_mangle]
-pub unsafe extern "C" fn reparent(p: *mut Proc) {
+pub unsafe extern "C" fn reparent(p: *mut Process) {
-    for pp in proc.iter_mut().map(|p: &mut Proc| addr_of_mut!(*p)) {
+    for pp in proc.iter_mut().map(|p: &mut Process| addr_of_mut!(*p)) {
         if (*pp).parent == p {
             (*pp).parent = initproc;
             wakeup(initproc.cast());
@@ -223,7 +223,7 @@ pub unsafe extern "C" fn reparent(p: *mut Proc) {
 /// Grow or shrink user memory by n bytes.
 /// Return 0 on success, -1 on failure.
 pub unsafe fn growproc(n: i32) -> i32 {
-    let p = Proc::current().unwrap();
+    let p = Process::current().unwrap();
     let mut sz = p.sz;
 
     if n > 0 {
@@ -240,9 +240,9 @@ pub unsafe fn growproc(n: i32) -> i32 {
 
 /// Give up the CPU for one scheduling round.
 pub unsafe fn r#yield() {
-    let p = Proc::current().unwrap();
+    let p = Process::current().unwrap();
     let _guard = p.lock.lock();
-    p.state = ProcState::Runnable;
+    p.state = ProcessState::Runnable;
     sched();
 }
 
@@ -255,12 +255,12 @@ pub unsafe fn r#yield() {
 /// there's no process.
 #[no_mangle]
 pub unsafe extern "C" fn sched() {
-    let p = Proc::current().unwrap();
+    let p = Process::current().unwrap();
     let cpu = Cpu::current();
 
     if cpu.interrupt_disable_layers != 1 {
         panic!("sched locks");
-    } else if p.state == ProcState::Running {
+    } else if p.state == ProcessState::Running {
         panic!("sched running");
     } else if intr_get() > 0 {
         panic!("sched interruptible");
@@ -283,12 +283,12 @@ pub unsafe extern "C" fn sleep_lock(chan: *mut c_void, lock: *mut Spinlock) {
 
 /// Sleep until `wakeup(chan)` is called somewhere else.
 pub unsafe fn sleep(chan: *mut c_void) {
-    let p = Proc::current().unwrap();
+    let p = Process::current().unwrap();
     let _guard = p.lock.lock();
 
     // Go to sleep.
     p.chan = chan;
-    p.state = ProcState::Sleeping;
+    p.state = ProcessState::Sleeping;
 
     sched();
 
@@ -301,7 +301,7 @@ pub unsafe fn sleep(chan: *mut c_void) {
 /// to user space (see usertrap() in trap.c).
 #[no_mangle]
 pub unsafe extern "C" fn kill(pid: i32) -> i32 {
-    if Proc::kill(pid) {
+    if Process::kill(pid) {
         1
     } else {
         0
@@ -309,12 +309,12 @@ pub unsafe extern "C" fn kill(pid: i32) -> i32 {
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn setkilled(p: *mut Proc) {
+pub unsafe extern "C" fn setkilled(p: *mut Process) {
     (*p).set_killed(true);
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn killed(p: *mut Proc) -> i32 {
+pub unsafe extern "C" fn killed(p: *mut Process) -> i32 {
     if (*p).is_killed() {
         1
     } else {

kernel/rustkernel/src/sync/lock.rs

@@ -1,5 +1,5 @@
 use super::LockStrategy;
-use crate::proc::proc::{sched, sleep, wakeup, Proc, ProcState};
+use crate::proc::process::{sched, sleep, wakeup, Process, ProcessState};
 use core::{
     cell::UnsafeCell,
     ops::Drop,
@@ -83,14 +83,14 @@ impl<'l> LockGuard<'l> {
     /// Sleep until `wakeup(chan)` is called somewhere
     /// else, yielding access to the lock until then.
     pub unsafe fn sleep(&self, chan: *mut core::ffi::c_void) {
-        let proc = Proc::current().unwrap();
+        let proc = Process::current().unwrap();
         let _guard = proc.lock.lock();
         let strategy = self.lock.lock_strategy();
         self.lock.unlock();
 
         // Put the process to sleep.
         proc.chan = chan;
-        proc.state = ProcState::Sleeping;
+        proc.state = ProcessState::Sleeping;
         sched();
 
         // Tidy up and reacquire the lock.

kernel/rustkernel/src/sync/sleeplock.rs

@@ -1,4 +1,4 @@
-use crate::proc::proc::{sleep, wakeup};
+use crate::proc::process::{sleep, wakeup};
 use core::{
     ffi::c_char,
     ptr::addr_of,

kernel/rustkernel/src/sync/spinlock.rs

@@ -1,5 +1,5 @@
 use crate::{
-    proc::proc::{sched, Proc, ProcState},
+    proc::process::{sched, Process, ProcessState},
     trap::{pop_intr_off, push_intr_off},
 };
 use core::{
@@ -46,13 +46,13 @@ pub struct SpinlockGuard<'l> {
 impl<'l> SpinlockGuard<'l> {
     /// Sleep until `wakeup(chan)` is called somewhere else, yielding the lock until then.
     pub unsafe fn sleep(&self, chan: *mut core::ffi::c_void) {
-        let proc = Proc::current().unwrap();
+        let proc = Process::current().unwrap();
         let _guard = proc.lock.lock();
         self.lock.unlock();
 
         // Put the process to sleep.
         proc.chan = chan;
-        proc.state = ProcState::Sleeping;
+        proc.state = ProcessState::Sleeping;
         sched();
 
         // Tidy up and reacquire the lock.

kernel/rustkernel/src/syscall.rs

@@ -8,7 +8,7 @@ use crate::{
     },
     mem::virtual_memory::{copyin, copyinstr},
     println,
-    proc::proc::{self, Proc},
+    proc::process::{self, Process},
     string::strlen,
     trap::CLOCK_TICKS,
     NOFILE,
@@ -57,16 +57,16 @@ pub enum Syscall {
 impl Syscall {
     pub unsafe fn call(&self) -> u64 {
         match self {
-            Syscall::Fork => proc::fork() as u64,
+            Syscall::Fork => process::fork() as u64,
             Syscall::Exit => {
                 let mut n = 0i32;
                 argint(0, addr_of_mut!(n));
-                proc::exit(n)
+                process::exit(n)
             }
             Syscall::Wait => {
                 let mut p = 0u64;
                 argaddr(0, addr_of_mut!(p));
-                proc::wait(p) as u64
+                process::wait(p) as u64
             }
             Syscall::Pipe => sys_pipe(),
             Syscall::Read => {
@@ -85,7 +85,7 @@ impl Syscall {
             Syscall::Kill => {
                 let mut pid = 0i32;
                 argint(0, addr_of_mut!(pid));
-                Proc::kill(pid) as u64
+                Process::kill(pid) as u64
             }
             Syscall::Exec => sys_exec(),
             Syscall::Fstat => {
@@ -102,7 +102,7 @@ impl Syscall {
             }
             Syscall::Chdir => {
                 let mut path = [0u8; crate::MAXPATH];
-                let proc = Proc::current().unwrap();
+                let proc = Process::current().unwrap();
 
                 let _operation = LogOperation::new();
 
@@ -138,13 +138,13 @@ impl Syscall {
                 file::filedup(file);
                 file_descriptor as u64
             }
-            Syscall::Getpid => Proc::current().unwrap().pid as u64,
+            Syscall::Getpid => Process::current().unwrap().pid as u64,
             Syscall::Sbrk => {
                 let mut n = 0i32;
                 argint(0, addr_of_mut!(n));
-                let addr = Proc::current().unwrap().sz;
+                let addr = Process::current().unwrap().sz;
 
-                if proc::growproc(n) < 0 {
+                if process::growproc(n) < 0 {
                     -1i64 as u64
                 } else {
                     addr
@@ -157,7 +157,7 @@ impl Syscall {
                 let mut ticks = CLOCK_TICKS.lock_spinning();
 
                 while *ticks < *ticks + n as usize {
-                    if Proc::current().unwrap().is_killed() {
+                    if Process::current().unwrap().is_killed() {
                         return -1i64 as u64;
                     }
                     // Sleep until the value changes.
@@ -191,7 +191,7 @@ impl Syscall {
                 let mut file: *mut File = null_mut();
 
                 if argfd(0, addr_of_mut!(file_descriptor), addr_of_mut!(file)) >= 0 {
-                    Proc::current().unwrap().ofile[file_descriptor as usize] = null_mut();
+                    Process::current().unwrap().ofile[file_descriptor as usize] = null_mut();
                     file::fileclose(file);
                     0
                 } else {
@@ -269,7 +269,7 @@ impl From<Syscall> for usize {
 /// Fetch the u64 at addr from the current process.
 #[no_mangle]
 pub unsafe extern "C" fn fetchaddr(addr: u64, ip: *mut u64) -> i32 {
-    let proc = Proc::current().unwrap();
+    let proc = Process::current().unwrap();
 
     // Both tests needed, in case of overflow.
     if addr >= proc.sz
@@ -292,7 +292,7 @@ pub unsafe extern "C" fn fetchaddr(addr: u64, ip: *mut u64) -> i32 {
 /// Returns length of string, not including null, or -1 for error.
 #[no_mangle]
 pub unsafe extern "C" fn fetchstr(addr: u64, buf: *mut u8, max: i32) -> i32 {
-    let proc = Proc::current().unwrap();
+    let proc = Process::current().unwrap();
 
     if copyinstr(proc.pagetable, buf, addr, max as u64) < 0 {
         -1
@@ -304,7 +304,7 @@ pub unsafe extern "C" fn fetchstr(addr: u64, buf: *mut u8, max: i32) -> i32 {
 /// Allocate a file descriptor for the given file.
 /// Takes over file reference from caller on success.
 unsafe fn fdalloc(file: *mut File) -> Result<usize, ()> {
-    let proc = Proc::current().unwrap();
+    let proc = Process::current().unwrap();
 
     for file_descriptor in 0..crate::NOFILE {
         if proc.ofile[file_descriptor].is_null() {
@@ -316,7 +316,7 @@ unsafe fn fdalloc(file: *mut File) -> Result<usize, ()> {
 }
 
 unsafe fn argraw(argument_index: usize) -> u64 {
-    let proc = Proc::current().unwrap();
+    let proc = Process::current().unwrap();
 
     match argument_index {
         0 => (*proc.trapframe).a0,
@@ -357,7 +357,7 @@ pub unsafe extern "C" fn argfd(
         return -1;
     }
 
-    let file: *mut File = Proc::current().unwrap().ofile[file_descriptor];
+    let file: *mut File = Process::current().unwrap().ofile[file_descriptor];
     if file.is_null() {
         return -1;
     }
@@ -383,7 +383,7 @@ pub unsafe extern "C" fn argstr(n: i32, buf: *mut u8, max: i32) -> i32 {
 }
 
 pub unsafe fn syscall() {
-    let proc = Proc::current().unwrap();
+    let proc = Process::current().unwrap();
 
     let num = (*proc.trapframe).a7;
 

kernel/rustkernel/src/trap.rs

@@ -3,7 +3,7 @@ use crate::{
     println,
     proc::{
         cpu::Cpu,
-        proc::{exit, r#yield, wakeup, Proc, ProcState},
+        process::{exit, r#yield, wakeup, Process, ProcessState},
     },
     sync::mutex::Mutex,
     syscall::syscall,
@@ -127,7 +127,7 @@ impl !Send for InterruptBlocker {}
 /// Return to user space
 #[no_mangle]
 pub unsafe extern "C" fn usertrapret() {
-    let proc = Proc::current().unwrap();
+    let proc = Process::current().unwrap();
 
     // We're about to switch the destination of traps from
     // kerneltrap() to usertrap(), so turn off interrupts until
@@ -196,8 +196,8 @@ pub unsafe extern "C" fn kerneltrap() {
         println!("scause {}\nsepc={} stval={}", scause, r_sepc(), r_stval());
         panic!("kerneltrap");
     } else if which_dev == 2
-        && Proc::current().is_some()
+        && Process::current().is_some()
-        && Proc::current().unwrap().state == ProcState::Running
+        && Process::current().unwrap().state == ProcessState::Running
     {
         // Give up the CPU if this is a timer interrupt.
         r#yield();
@@ -222,7 +222,7 @@ pub unsafe extern "C" fn usertrap() {
     // since we're now in the kernel.
     w_stvec(kernelvec as usize as u64);
 
-    let proc = Proc::current().unwrap();
+    let proc = Process::current().unwrap();
 
     // Save user program counter.
     (*proc.trapframe).epc = r_sepc();