4 * Copyright 2001, 2004 Develer S.r.l. (http://www.develer.com/)
5 * Copyright 1999, 2000, 2001 Bernardo Innocenti <bernie@develer.com>
6 * This file is part of DevLib - See devlib/README for information.
9 * \brief Internal scheduler structures and definitions for processes.
13 * \author Bernardo Innocenti <bernie@develer.com>
18 *#* Revision 1.11 2004/11/16 22:37:14 bernie
19 *#* Replace IPTR with iptr_t.
21 *#* Revision 1.10 2004/10/19 11:47:07 bernie
22 *#* Add missing #endif.
24 *#* Revision 1.9 2004/10/19 08:55:31 bernie
25 *#* Define forbid_cnt.
27 *#* Revision 1.8 2004/10/03 20:39:28 bernie
28 *#* Import changes from sc/firmware.
30 *#* Revision 1.7 2004/08/25 14:12:09 rasky
31 *#* Aggiornato il comment block dei log RCS
33 *#* Revision 1.6 2004/08/24 16:05:15 bernie
34 *#* Add missing headers; Reformat.
36 *#* Revision 1.5 2004/08/14 19:37:57 rasky
37 *#* Merge da SC: macros.h, pool.h, BIT_CHANGE, nome dei processi, etc.
39 *#* Revision 1.4 2004/07/30 14:24:16 rasky
40 *#* Task switching con salvataggio perfetto stato di interrupt (SR)
41 *#* Kernel monitor per dump informazioni su stack dei processi
43 *#* Revision 1.3 2004/07/14 14:18:09 rasky
44 *#* Merge da SC: Rimosso timer dentro il task, che รจ uno spreco di memoria per troppi task
46 *#* Revision 1.2 2004/06/03 11:27:09 bernie
47 *#* Add dual-license information.
49 *#* Revision 1.1 2004/05/23 17:27:00 bernie
50 *#* Import kern/ subdirectory.
52 *#* Revision 1.3 2004/05/14 12:52:13 rasky
53 *#* Importato supporto kernel per AVR da Stefano
55 *#* Revision 1.2 2004/04/28 16:13:49 rasky
56 *#* proc_schedule() is now semi-private (used only within the kernel)
58 *#* Revision 1.1 2004/04/26 18:02:40 rasky
59 *#* Importato microkernel
61 *#* Revision 1.1 2004/04/04 17:40:26 aleph
62 *#* Add multithreading kernel
69 #include "cpu.h" /* for cpu_stack_t */
71 #include "config_kern.h"
72 #include <mware/list.h>
74 typedef struct Process
76 Node link; /*!< Link Process into scheduler lists */
77 cpustack_t *stack; /*!< Per-process SP */
78 iptr_t user_data; /*!< Custom data passed to the process */
80 #if CONFIG_KERN_SIGNALS
81 sigset_t sig_wait; /*!< Signals the process is waiting for */
82 sigset_t sig_recv; /*!< Received signals */
85 #if CONFIG_KERN_PREEMPTIVE
86 int forbid_cnt; /*!< Nesting count for proc_forbid()/proc_permit(). */
90 uint16_t flags; /*!< Flags */
91 cpustack_t *stack_base; /*!< Base of process stack */
92 size_t stack_size; /*!< Size of process stack */
95 #if CONFIG_KERN_MONITOR
100 cpustack_t *stack_base;
109 * \name Flags for Process.flags.
112 #define PF_FREESTACK BV(0) /*!< Free the stack when process dies */
116 /*! Track running processes. */
117 extern REGISTER Process *CurrentProcess;
119 /*! Track ready processes. */
120 extern REGISTER List ProcReadyList;
123 /*! Enqueue a task in the ready list. */
124 #define SCHED_ENQUEUE(proc) ADDTAIL(&ProcReadyList, &(proc)->link)
126 /*! Schedule to another process *without* adding the current to the ready list. */
127 void proc_schedule(void);
129 #if CONFIG_KERN_MONITOR
130 /*! Initialize the monitor */
131 void monitor_init(void);
133 /*! Register a process into the monitor */
134 void monitor_add(Process *proc, const char *name, cpustack_t *stack, size_t stacksize);
136 /*! Unregister a process from the monitor */
137 void monitor_remove(Process *proc);
139 /*! Rename a process */
140 void monitor_rename(Process *proc, const char* name);
141 #endif /* CONFIG_KERN_MONITOR */
143 #endif /* KERN_PROC_P_H */