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 1.12 2004/12/08 08:57:35 bernie
19 *#* Rename sigset_t to sigmask_t.
21 *#* Revision 1.11 2004/11/16 22:37:14 bernie
22 *#* Replace IPTR with iptr_t.
24 *#* Revision 1.10 2004/10/19 11:47:07 bernie
25 *#* Add missing #endif.
27 *#* Revision 1.9 2004/10/19 08:55:31 bernie
28 *#* Define forbid_cnt.
30 *#* Revision 1.8 2004/10/03 20:39:28 bernie
31 *#* Import changes from sc/firmware.
33 *#* Revision 1.7 2004/08/25 14:12:09 rasky
34 *#* Aggiornato il comment block dei log RCS
36 *#* Revision 1.6 2004/08/24 16:05:15 bernie
37 *#* Add missing headers; Reformat.
39 *#* Revision 1.5 2004/08/14 19:37:57 rasky
40 *#* Merge da SC: macros.h, pool.h, BIT_CHANGE, nome dei processi, etc.
42 *#* Revision 1.4 2004/07/30 14:24:16 rasky
43 *#* Task switching con salvataggio perfetto stato di interrupt (SR)
44 *#* Kernel monitor per dump informazioni su stack dei processi
46 *#* Revision 1.3 2004/07/14 14:18:09 rasky
47 *#* Merge da SC: Rimosso timer dentro il task, che รจ uno spreco di memoria per troppi task
49 *#* Revision 1.2 2004/06/03 11:27:09 bernie
50 *#* Add dual-license information.
52 *#* Revision 1.1 2004/05/23 17:27:00 bernie
53 *#* Import kern/ subdirectory.
55 *#* Revision 1.3 2004/05/14 12:52:13 rasky
56 *#* Importato supporto kernel per AVR da Stefano
58 *#* Revision 1.2 2004/04/28 16:13:49 rasky
59 *#* proc_schedule() is now semi-private (used only within the kernel)
61 *#* Revision 1.1 2004/04/26 18:02:40 rasky
62 *#* Importato microkernel
64 *#* Revision 1.1 2004/04/04 17:40:26 aleph
65 *#* Add multithreading kernel
72 #include "cpu.h" /* for cpu_stack_t */
74 #include "config_kern.h"
75 #include <mware/list.h>
77 typedef struct Process
79 Node link; /*!< Link Process into scheduler lists */
80 cpustack_t *stack; /*!< Per-process SP */
81 iptr_t user_data; /*!< Custom data passed to the process */
83 #if CONFIG_KERN_SIGNALS
84 sigmask_t sig_wait; /*!< Signals the process is waiting for */
85 sigmask_t sig_recv; /*!< Received signals */
88 #if CONFIG_KERN_PREEMPTIVE
89 int forbid_cnt; /*!< Nesting count for proc_forbid()/proc_permit(). */
93 uint16_t flags; /*!< Flags */
94 cpustack_t *stack_base; /*!< Base of process stack */
95 size_t stack_size; /*!< Size of process stack */
98 #if CONFIG_KERN_MONITOR
103 cpustack_t *stack_base;
112 * \name Flags for Process.flags.
115 #define PF_FREESTACK BV(0) /*!< Free the stack when process dies */
119 /*! Track running processes. */
120 extern REGISTER Process *CurrentProcess;
122 /*! Track ready processes. */
123 extern REGISTER List ProcReadyList;
126 /*! Enqueue a task in the ready list. */
127 #define SCHED_ENQUEUE(proc) ADDTAIL(&ProcReadyList, &(proc)->link)
129 /*! Schedule to another process *without* adding the current to the ready list. */
130 void proc_schedule(void);
132 #if CONFIG_KERN_MONITOR
133 /*! Initialize the monitor */
134 void monitor_init(void);
136 /*! Register a process into the monitor */
137 void monitor_add(Process *proc, const char *name, cpustack_t *stack, size_t stacksize);
139 /*! Unregister a process from the monitor */
140 void monitor_remove(Process *proc);
142 /*! Rename a process */
143 void monitor_rename(Process *proc, const char* name);
144 #endif /* CONFIG_KERN_MONITOR */
146 #endif /* KERN_PROC_P_H */