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 README.devlib for information.
9 * \brief Internal scheduler structures and definitions for processes.
13 * \author Bernardo Innocenti <bernie@develer.com>
18 *#* Revision 1.16 2006/07/19 12:56:27 bernie
19 *#* Convert to new Doxygen style.
21 *#* Revision 1.15 2005/11/27 23:36:19 bernie
22 *#* Use appconfig.h instead of cfg/config.h.
24 *#* Revision 1.14 2005/11/04 16:20:02 bernie
25 *#* Fix reference to README.devlib in header.
27 *#* Revision 1.13 2005/04/11 19:10:28 bernie
28 *#* Include top-level headers from cfg/ subdir.
30 *#* Revision 1.12 2004/12/08 08:57:35 bernie
31 *#* Rename sigset_t to sigmask_t.
33 *#* Revision 1.11 2004/11/16 22:37:14 bernie
34 *#* Replace IPTR with iptr_t.
36 *#* Revision 1.10 2004/10/19 11:47:07 bernie
37 *#* Add missing #endif.
39 *#* Revision 1.9 2004/10/19 08:55:31 bernie
40 *#* Define forbid_cnt.
42 *#* Revision 1.8 2004/10/03 20:39:28 bernie
43 *#* Import changes from sc/firmware.
45 *#* Revision 1.7 2004/08/25 14:12:09 rasky
46 *#* Aggiornato il comment block dei log RCS
48 *#* Revision 1.6 2004/08/24 16:05:15 bernie
49 *#* Add missing headers; Reformat.
51 *#* Revision 1.5 2004/08/14 19:37:57 rasky
52 *#* Merge da SC: macros.h, pool.h, BIT_CHANGE, nome dei processi, etc.
54 *#* Revision 1.4 2004/07/30 14:24:16 rasky
55 *#* Task switching con salvataggio perfetto stato di interrupt (SR)
56 *#* Kernel monitor per dump informazioni su stack dei processi
58 *#* Revision 1.3 2004/07/14 14:18:09 rasky
59 *#* Merge da SC: Rimosso timer dentro il task, che รจ uno spreco di memoria per troppi task
61 *#* Revision 1.2 2004/06/03 11:27:09 bernie
62 *#* Add dual-license information.
64 *#* Revision 1.1 2004/05/23 17:27:00 bernie
65 *#* Import kern/ subdirectory.
67 *#* Revision 1.3 2004/05/14 12:52:13 rasky
68 *#* Importato supporto kernel per AVR da Stefano
70 *#* Revision 1.2 2004/04/28 16:13:49 rasky
71 *#* proc_schedule() is now semi-private (used only within the kernel)
73 *#* Revision 1.1 2004/04/26 18:02:40 rasky
74 *#* Importato microkernel
76 *#* Revision 1.1 2004/04/04 17:40:26 aleph
77 *#* Add multithreading kernel
83 #include <cfg/compiler.h>
84 #include <cfg/cpu.h> /* for cpu_stack_t */
85 #include <mware/list.h>
86 #include <config_kern.h>
87 #include <appconfig.h>
89 typedef struct Process
91 Node link; /**< Link Process into scheduler lists */
92 cpustack_t *stack; /**< Per-process SP */
93 iptr_t user_data; /**< Custom data passed to the process */
95 #if CONFIG_KERN_SIGNALS
96 sigmask_t sig_wait; /**< Signals the process is waiting for */
97 sigmask_t sig_recv; /**< Received signals */
100 #if CONFIG_KERN_PREEMPTIVE
101 int forbid_cnt; /**< Nesting count for proc_forbid()/proc_permit(). */
105 uint16_t flags; /**< Flags */
106 cpustack_t *stack_base; /**< Base of process stack */
107 size_t stack_size; /**< Size of process stack */
110 #if CONFIG_KERN_MONITOR
115 cpustack_t *stack_base;
124 * \name Flags for Process.flags.
127 #define PF_FREESTACK BV(0) /**< Free the stack when process dies */
131 /** Track running processes. */
132 extern REGISTER Process *CurrentProcess;
134 /** Track ready processes. */
135 extern REGISTER List ProcReadyList;
138 /** Enqueue a task in the ready list. */
139 #define SCHED_ENQUEUE(proc) ADDTAIL(&ProcReadyList, &(proc)->link)
141 /** Schedule to another process *without* adding the current to the ready list. */
142 void proc_schedule(void);
144 #if CONFIG_KERN_MONITOR
145 /** Initialize the monitor */
146 void monitor_init(void);
148 /** Register a process into the monitor */
149 void monitor_add(Process *proc, const char *name, cpustack_t *stack, size_t stacksize);
151 /** Unregister a process from the monitor */
152 void monitor_remove(Process *proc);
154 /** Rename a process */
155 void monitor_rename(Process *proc, const char* name);
156 #endif /* CONFIG_KERN_MONITOR */
158 #endif /* KERN_PROC_P_H */