Mercurial > hvf > hvf-old

changeset 227:9940f9a7a49f

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nucleus: Each task has a name associated with it This will make it easier to figure out which task belongs to what. Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
author Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
date Sat, 10 Jan 2009 14:33:04 -0500
parents f5b2d14c531f
children d0ea258ea420
files cp/init.c drivers/console.c include/sched.h nucleus/sched.c
diffstat 4 files changed, 26 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/cp/init.c	Sat Jan 10 14:29:49 2009 -0500
+++ b/cp/init.c	Sat Jan 10 14:33:04 2009 -0500
@@ -160,8 +160,8 @@
 	sys->directory = find_user_by_id("operator");
 	BUG_ON(IS_ERR(sys->directory));
 
-	sys->task = create_task(cp_init, sys);
+	sys->task = create_task("operator-vcpu0", cp_init, sys);
 	BUG_ON(IS_ERR(sys->task));
 
-	BUG_ON(IS_ERR(create_task(cp_cmd_intercept_gen, sys)));
+	BUG_ON(IS_ERR(create_task("*-cmd_intercept", cp_cmd_intercept_gen, sys)));
 }
--- a/drivers/console.c	Sat Jan 10 14:29:49 2009 -0500
+++ b/drivers/console.c	Sat Jan 10 14:33:04 2009 -0500
@@ -258,6 +258,7 @@
 
 struct console* start_consoles()
 {
+	char name[TASK_NAME_LEN+1];
 	struct console *op;
 	int i;
 
@@ -268,7 +269,9 @@
 	BUG_ON(list_empty(&consoles));
 	op = list_first_entry(&consoles, struct console, consoles);
 
-	create_task(console_flusher, op);
+	snprintf(name, TASK_NAME_LEN, "%05X-conflsh", op->dev->sch);
+
+	create_task(name, console_flusher, op);
 
 	for(i = 0; splash[i]; i++)
 		con_printf(op, splash[i]);
--- a/include/sched.h	Sat Jan 10 14:29:49 2009 -0500
+++ b/include/sched.h	Sat Jan 10 14:33:04 2009 -0500
@@ -84,6 +84,8 @@
 	enum virt_cpustate state;
 };
 
+#define TASK_NAME_LEN		16
+
 /*
  * This structure describes a running process.
  */
@@ -98,6 +100,8 @@
 	struct virt_cpu *cpu;		/* guest cpu */
 
 	int state;			/* state */
+
+	char name[TASK_NAME_LEN+1];	/* task name */
 };
 
 struct virt_sys {
@@ -112,12 +116,15 @@
 };
 
 extern void init_sched();		/* initialize the scheduler */
-extern struct task* create_task(int (*f)(void*), void*);
+extern struct task* create_task(char *name, int (*f)(void*), void*);
 					/* create a new task */
 extern void schedule();			/* yield the cpu */
 extern void __schedule(struct psw *);	/* scheduler helper - use with caution */
 extern void __schedule_svc();
 
+extern void list_tasks(struct console *con,
+		       void (*f)(struct console *, struct task*));
+
 /**
  * current - the current task's task struct
  */
--- a/nucleus/sched.c	Sat Jan 10 14:29:49 2009 -0500
+++ b/nucleus/sched.c	Sat Jan 10 14:33:04 2009 -0500
@@ -93,10 +93,11 @@
 
 /**
  * create_task - create a new task
+ * @name:	name for the task
  * @f:		function pointer to where thread of execution should begin
  * @data:	arbitrary data to pass to the task
  */
-struct task* create_task(int (*f)(void *), void *data)
+struct task* create_task(char *name, int (*f)(void *), void *data)
 {
 	struct page *page;
 	struct task *task;
@@ -114,6 +115,8 @@
 	 */
 	__init_task(task, f, data, page_to_addr(page));
 
+	strncpy(task->name, name, TASK_NAME_LEN);
+
 	/*
 	 * Add the task to the scheduler lists
 	 */
@@ -278,3 +281,11 @@
 	set_timer();
 }
 
+void list_tasks(struct console *con,
+		void (*f)(struct console *, struct task*))
+{
+	struct task *t;
+
+	list_for_each_entry(t, &processes, proc_list)
+		f(con, t);
+}