* Copyright 1999, 2000, 2001, 2008 Bernie Innocenti <bernie@codewiz.org>
* -->
*
- * \brief Process scheduler (public interface).
+ * \brief Bertos Kernel core (Process scheduler).
*
* \version $Id$
* \author Bernie Innocenti <bernie@codewiz.org>
+ *
+ * $WIZ$ module_name = "kernel"
+ * $WIZ$ module_configuration = "bertos/cfg/cfg_proc.h"
*/
+
#ifndef KERN_PROC_H
#define KERN_PROC_H
-#include "cfg/cfg_kern.h"
+#include "cfg/cfg_proc.h"
+#include "cfg/cfg_monitor.h"
+
#include <cfg/compiler.h>
#if CONFIG_KERN_PREEMPT
#include <cfg/debug.h> // ASSERT()
#endif
-#include <cpu/types.h> // cpustack_t
+#include <cpu/types.h> // cpu_stack_t
#include <cpu/frame.h> // CPU_SAVED_REGS_CNT
/*
*/
struct Process;
-/* Task scheduling services */
void proc_init(void);
-struct Process *proc_new_with_name(const char* name, void (*entry)(void), iptr_t data, size_t stacksize, cpustack_t *stack);
+struct Process *proc_new_with_name(const char *name, void (*entry)(void), iptr_t data, size_t stacksize, cpu_stack_t *stack);
#if !CONFIG_KERN_MONITOR
#define proc_new(entry,data,size,stack) proc_new_with_name(NULL,(entry),(data),(size),(stack))
void proc_exit(void);
void proc_yield(void);
+void proc_rename(struct Process *proc, const char *name);
+const char *proc_name(struct Process *proc);
+const char *proc_currentName(void);
+iptr_t proc_currentUserData(void);
int proc_testSetup(void);
int proc_testRun(void);
int proc_testTearDown(void);
-struct Process *proc_current(void);
-iptr_t proc_currentUserData(void);
-void proc_rename(struct Process *proc, const char *name);
-const char *proc_name(struct Process *proc);
-const char *proc_currentName(void);
+/**
+ * Return the context structure of the currently running process.
+ *
+ * The details of the Process structure are private to the scheduler.
+ * The address returned by this function is an opaque pointer that can
+ * be passed as an argument to other process-related functions.
+ */
+INLINE struct Process *proc_current(void)
+{
+ extern struct Process *CurrentProcess;
+ return CurrentProcess;
+}
#if CONFIG_KERN_PRI
void proc_setPri(struct Process *proc, int pri);
INLINE void proc_forbid(void)
{
#if CONFIG_KERN_PREEMPT
- extern int _preempt_forbid_cnt;
+ extern cpu_atomic_t _preempt_forbid_cnt;
/*
* We don't need to protect the counter against other processes.
* The reason why is a bit subtle.
* flushed to memory before task switching is re-enabled.
*/
MEMORY_BARRIER;
- extern int _preempt_forbid_cnt;
+ extern cpu_atomic_t _preempt_forbid_cnt;
/* No need to protect against interrupts here. */
ASSERT(_preempt_forbid_cnt != 0);
--_preempt_forbid_cnt;
INLINE bool proc_allowed(void)
{
#if CONFIG_KERN_PREEMPT
- extern int _preempt_forbid_cnt;
+ extern cpu_atomic_t _preempt_forbid_cnt;
return (_preempt_forbid_cnt == 0);
#else
return true;
* usage.
*/
#define CONFIG_KERN_MINSTACKSIZE \
- (CPU_SAVED_REGS_CNT * 2 * sizeof(cpustack_t) \
- + 32 * sizeof(int))
+ (CPU_SAVED_REGS_CNT * 2 * sizeof(cpu_stack_t) \
+ + 48 * sizeof(int))
#endif
#endif
#if CONFIG_KERN_MONITOR
#include <cpu/types.h>
#if (SIZEOF_CPUSTACK_T == 1)
- /* 8bit cpustack_t */
+ /* 8bit cpu_stack_t */
#define CONFIG_KERN_STACKFILLCODE 0xA5
#define CONFIG_KERN_MEMFILLCODE 0xDB
#elif (SIZEOF_CPUSTACK_T == 2)
- /* 16bit cpustack_t */
+ /* 16bit cpu_stack_t */
#define CONFIG_KERN_STACKFILLCODE 0xA5A5
#define CONFIG_KERN_MEMFILLCODE 0xDBDB
#elif (SIZEOF_CPUSTACK_T == 4)
- /* 32bit cpustack_t */
+ /* 32bit cpu_stack_t */
#define CONFIG_KERN_STACKFILLCODE 0xA5A5A5A5UL
#define CONFIG_KERN_MEMFILLCODE 0xDBDBDBDBUL
#elif (SIZEOF_CPUSTACK_T == 8)
- /* 64bit cpustack_t */
+ /* 64bit cpu_stack_t */
#define CONFIG_KERN_STACKFILLCODE 0xA5A5A5A5A5A5A5A5ULL
#define CONFIG_KERN_MEMFILLCODE 0xDBDBDBDBDBDBDBDBULL
#else
- #error No cpustack_t size supported!
+ #error No cpu_stack_t size supported!
#endif
#endif