[Aceos-developers] SF.net SVN: aceos:[318] src

[<sam...@us...>]

Revision: 318
          http://aceos.svn.sourceforge.net/aceos/?rev=318&view=rev
Author:   samueldotj
Date:     2008-08-11 16:42:24 +0000 (Mon, 11 Aug 2008)

Log Message:
-----------
Added thread.c and task.c

Added Paths:
-----------
    src/include/kernel/pm/
    src/include/kernel/pm/task.h
    src/include/kernel/pm/thread.h
    src/kernel/pm/task.c
    src/kernel/pm/thread.c

Added: src/include/kernel/pm/task.h
===================================================================
--- src/include/kernel/pm/task.h	                        (rev 0)
+++ src/include/kernel/pm/task.h	2008-08-11 16:42:24 UTC (rev 318)
@@ -0,0 +1,33 @@
+/*! \file include/kernel/pm/task.h
+    \brief task related strcutrues and function declarations
+*/
+
+#ifndef _TASK_H_
+#define _TASK_H_
+
+#include <ace.h>
+#include <ds/list.h>
+#include <sync/spinlock.h>
+#include <kernel/mm/vm.h>
+#include <kernel/pm/thread.h>
+
+typedef struct task
+{
+	SPIN_LOCK	 	lock;					/*lock for the entire structure*/
+	int				reference_count;
+	
+	VIRTUAL_MAP_PTR	virtual_map;			/*virtual map for this task*/
+	
+	THREAD_PTR		thread_head;			/*threads in the same task*/
+}TASK, * TASK_PTR;
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+
+#ifdef __cplusplus
+	}
+#endif
+
+#endif

Added: src/include/kernel/pm/thread.h
===================================================================
--- src/include/kernel/pm/thread.h	                        (rev 0)
+++ src/include/kernel/pm/thread.h	2008-08-11 16:42:24 UTC (rev 318)
@@ -0,0 +1,44 @@
+/*!
+  \file		include/kernel/pm/thread.h
+  \brief	Thread related structures and functions
+*/
+#ifndef _THREAD_H_
+#define _THREAD_H_
+
+#include <ace.h>
+#include <ds/list.h>
+#include <sync/spinlock.h>
+#include <kernel/pm/task.h>
+
+typedef enum 
+{
+	THREAD_STATE_READY			= 1,		/*thread is ready to run*/
+	THREAD_STATE_RUN			= 2,		/*thread is running*/
+	THREAD_STATE_TERMINATE		= 3,		/*thread is terminating*/
+	THREAD_STATE_SLEEP			= 4,		/*thread is sleeping*/
+}THREAD_STATE;
+
+
+typedef struct thread
+{
+	SPIN_LOCK	 	lock;					/*lock for the entire structure*/
+	int				reference_count;
+	
+	TASK_PTR		task;					/*back pointer to task*/
+	LIST			thread_queue;			/*threads in the same task*/
+	
+	THREAD_STATE	thread_state;			/*Run State*/
+}THREAD, * THREAD_PTR;
+
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+THREAD_PTR GetCurrentThread();
+
+#ifdef __cplusplus
+	}
+#endif
+
+#endif

Added: src/kernel/pm/task.c
===================================================================
--- src/kernel/pm/task.c	                        (rev 0)
+++ src/kernel/pm/task.c	2008-08-11 16:42:24 UTC (rev 318)
@@ -0,0 +1,4 @@
+/*!
+  \file		task.c
+  \brief	
+*/
\ No newline at end of file

Added: src/kernel/pm/thread.c
===================================================================
--- src/kernel/pm/thread.c	                        (rev 0)
+++ src/kernel/pm/thread.c	2008-08-11 16:42:24 UTC (rev 318)
@@ -0,0 +1,27 @@
+/*!
+  \file		thread.c
+  \brief	Thread management
+*/
+
+#include <pm/thread.h>
+
+/*
+Thread's execution context in kernel mode
+	------- Page align
+	thread structure
+	------- Guard Page
+	xxxxxxx
+	------- Stack page
+	kernel stack
+*/
+
+/*gets the current kernel stack position*/
+#define GET_KERNEL_STACK(kstack) 		asm volatile("movl %%esp, %0":"=m"(kstack))
+
+/*! Get Current Thread*/
+THREAD_PTR GetCurrentThread()
+{
+	BYTE * kstack;
+	GET_KERNEL_STACK( kstack );
+	kstack = PAGE_ALIGN( kstack ) - (2 * PAGE_SIZE);
+}


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