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[kernel] Use map for process handles

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Replace linearly-indexed vector of handles with new kutil::map. Also
provide thread::current() and process::current() accessors so that every
syscall doesn't need to include the scheduler to deduce the current
process.
This commit is contained in:
Justin C. Miller
2020-09-13 15:54:47 -07:00
parent 245f260d67
commit 9dee5e4138
6 changed files with 43 additions and 43 deletions
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22
src/kernel/syscalls/channel.cpp
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@@ -2,19 +2,14 @@
#include "j6/types.h"
#include "objects/channel.h"
#include "objects/thread.h"
#include "objects/process.h"
#include "scheduler.h"
namespace syscalls {
j6_status_t
channel_create(j6_handle_t *handle)
{
scheduler &s = scheduler::get();
TCB *tcb = s.current();
thread *parent = thread::from_tcb(tcb);
process &p = parent->parent();
process &p = process::current();
channel *c = new channel;
*handle = p.add_handle(c);
@@ -25,10 +20,7 @@ channel_create(j6_handle_t *handle)
j6_status_t
channel_close(j6_handle_t handle)
{
scheduler &s = scheduler::get();
TCB *tcb = s.current();
thread *parent = thread::from_tcb(tcb);
process &p = parent->parent();
process &p = process::current();
kobject *o = p.lookup_handle(handle);
if (!o || o->get_type() != kobject::type::channel)
@@ -44,10 +36,7 @@ channel_close(j6_handle_t handle)
j6_status_t
channel_send(j6_handle_t handle, size_t *len, void *data)
{
scheduler &s = scheduler::get();
TCB *tcb = s.current();
thread *parent = thread::from_tcb(tcb);
process &p = parent->parent();
process &p = process::current();
kobject *o = p.lookup_handle(handle);
if (!o || o->get_type() != kobject::type::channel)
@@ -60,10 +49,7 @@ channel_send(j6_handle_t handle, size_t *len, void *data)
j6_status_t
channel_receive(j6_handle_t handle, size_t *len, void *data)
{
scheduler &s = scheduler::get();
TCB *tcb = s.current();
thread *parent = thread::from_tcb(tcb);
process &p = parent->parent();
process &p = process::current();
kobject *o = p.lookup_handle(handle);
if (!o || o->get_type() != kobject::type::channel)