Move examples/ to examples/standalone

The current files in examples are all standalone application examples,
so put them in their own subdirectory for organizational purposes

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

1 files changed, 0 insertions, 369 deletions

diff --git a/examples/sched.c b/examples/sched.c
deleted file mode 100644
index b32766f..0000000
--- a/examples/sched.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <exports.h>
-
-/*
- * Author: Arun Dharankar <ADharankar@ATTBI.Com>
- *
- * A very simple thread/schedular model:
- *   - only one master thread, and no parent child relation maintained
- *   - parent thread cannot be stopped or deleted
- *   - no permissions or credentials
- *   - no elaborate safety checks
- *   - cooperative multi threading
- *   - Simple round-robin scheduleing with no priorities
- *   - no metering/statistics collection
- *
- * Basic idea of implementing this is to allow more than one tests to
- * execute "simultaneously".
- *
- * This may be modified such thread_yield may be called in syscalls, and
- * timer interrupts.
- */
-
-
-#define MAX_THREADS 8
-
-#define CTX_SIZE 512
-#define STK_SIZE 8*1024
-
-#define STATE_EMPTY 0
-#define STATE_RUNNABLE 1
-#define STATE_STOPPED 2
-#define STATE_TERMINATED 2
-
-#define MASTER_THREAD 0
-
-#define RC_FAILURE	(-1)
-#define	RC_SUCCESS	(0)
-
-typedef	vu_char *jmp_ctx;
-unsigned long setctxsp (vu_char *sp);
-int ppc_setjmp(jmp_ctx env);
-void ppc_longjmp(jmp_ctx env, int val);
-#define setjmp	ppc_setjmp
-#define longjmp	ppc_longjmp
-
-struct lthread {
-	int state;
-	int retval;
-	char stack[STK_SIZE];
-	uchar context[CTX_SIZE];
-	int (*func) (void *);
-	void *arg;
-};
-static volatile struct lthread lthreads[MAX_THREADS];
-static volatile int current_tid = MASTER_THREAD;
-
-
-static uchar dbg = 0;
-
-#define PDEBUG(fmt, args...)	 {					\
-	if(dbg != 0) {							\
-		printf("[%s %d %s]: ",__FILE__,__LINE__,__FUNCTION__);\
-		printf(fmt, ##args);				\
-		printf("\n");					\
-	}								\
-}
-
-static int testthread (void *);
-static void sched_init (void);
-static int thread_create (int (*func) (void *), void *arg);
-static int thread_start (int id);
-static void thread_yield (void);
-static int thread_delete (int id);
-static int thread_join (int *ret);
-
-#if 0							/* not used yet */
-static int thread_stop (int id);
-#endif							/* not used yet */
-
-/* An example of schedular test */
-
-#define NUMTHREADS 7
-int sched (int ac, char *av[])
-{
-	int i, j;
-	int tid[NUMTHREADS];
-	int names[NUMTHREADS];
-
-	app_startup(av);
-
-	sched_init ();
-
-	for (i = 0; i < NUMTHREADS; i++) {
-		names[i] = i;
-		j = thread_create (testthread, (void *) &names[i]);
-		if (j == RC_FAILURE)
-			printf ("schedtest: Failed to create thread %d\n", i);
-		if (j > 0) {
-			printf ("schedtest: Created thread with id %d, name %d\n",
-						j, i);
-			tid[i] = j;
-		}
-	}
-	printf ("schedtest: Threads created\n");
-
-	printf ("sched_test: function=0x%08x\n", (unsigned)testthread);
-	for (i = 0; i < NUMTHREADS; i++) {
-		printf ("schedtest: Setting thread %d runnable\n", tid[i]);
-		thread_start (tid[i]);
-		thread_yield ();
-	}
-	printf ("schedtest: Started %d threads\n", NUMTHREADS);
-
-	while (1) {
-		printf ("schedtest: Waiting for threads to complete\n");
-		if (tstc () && getc () == 0x3) {
-			printf ("schedtest: Aborting threads...\n");
-			for (i = 0; i < NUMTHREADS; i++) {
-				printf ("schedtest: Deleting thread %d\n", tid[i]);
-				thread_delete (tid[i]);
-			}
-			return RC_SUCCESS;
-		}
-		j = -1;
-		i = thread_join (&j);
-		if (i == RC_FAILURE) {
-			printf ("schedtest: No threads pending, "
-						"exiting schedular test\n");
-			return RC_SUCCESS;
-		}
-		printf ("schedtest: thread is %d returned %d\n", i, j);
-		thread_yield ();
-	}
-
-	return RC_SUCCESS;
-}
-
-static int testthread (void *name)
-{
-	int i;
-
-	printf ("testthread: Begin executing thread, myname %d, &i=0x%08x\n",
-		*(int *) name, (unsigned)&i);
-
-	printf ("Thread %02d, i=%d\n", *(int *) name, i);
-
-	for (i = 0; i < 0xffff * (*(int *) name + 1); i++) {
-		if (tstc () && getc () == 0x3) {
-			printf ("testthread: myname %d terminating.\n",
-						*(int *) name);
-			return *(int *) name + 1;
-		}
-
-		if (i % 100 == 0)
-			thread_yield ();
-	}
-
-	printf ("testthread: returning %d, i=0x%x\n",
-				*(int *) name + 1, i);
-
-	return *(int *) name + 1;
-}
-
-
-static void sched_init (void)
-{
-	int i;
-
-	for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++)
-		lthreads[i].state = STATE_EMPTY;
-
-	current_tid = MASTER_THREAD;
-	lthreads[current_tid].state = STATE_RUNNABLE;
-	PDEBUG ("sched_init: master context = 0x%08x",
-		(unsigned)lthreads[current_tid].context);
-	return;
-}
-
-static void thread_yield (void)
-{
-	static int i;
-
-	PDEBUG ("thread_yield: current tid=%d", current_tid);
-
-#define SWITCH(new)							\
-	if(lthreads[new].state == STATE_RUNNABLE) {			\
-		PDEBUG("thread_yield: %d match, ctx=0x%08x",		\
-			new,						\
-			(unsigned)lthreads[current_tid].context);	\
-		if(setjmp(lthreads[current_tid].context) == 0) {	\
-			current_tid = new;				\
-			PDEBUG("thread_yield: tid %d returns 0",	\
-				new);					\
-			longjmp(lthreads[new].context, 1);		\
-		} else {						\
-			PDEBUG("thread_yield: tid %d returns 1",	\
-				new);					\
-			return;						\
-		}							\
-	}
-
-	for (i = current_tid + 1; i < MAX_THREADS; i++) {
-		SWITCH (i);
-	}
-
-	if (current_tid != 0) {
-		for (i = 0; i <= current_tid; i++) {
-			SWITCH (i);
-		}
-	}
-
-	PDEBUG ("thread_yield: returning from thread_yield");
-	return;
-}
-
-static int thread_create (int (*func) (void *), void *arg)
-{
-	int i;
-
-	for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++) {
-		if (lthreads[i].state == STATE_EMPTY) {
-			lthreads[i].state = STATE_STOPPED;
-			lthreads[i].func = func;
-			lthreads[i].arg = arg;
-			PDEBUG ("thread_create: returns new tid %d", i);
-			return i;
-		}
-	}
-
-	PDEBUG ("thread_create: returns failure");
-	return RC_FAILURE;
-}
-
-static int thread_delete (int id)
-{
-	if (id <= MASTER_THREAD || id > MAX_THREADS)
-		return RC_FAILURE;
-
-	if (current_tid == id)
-		return RC_FAILURE;
-
-	lthreads[id].state = STATE_EMPTY;
-	return RC_SUCCESS;
-}
-
-static void thread_launcher (void)
-{
-	PDEBUG ("thread_launcher: invoking func=0x%08x",
-		   (unsigned)lthreads[current_tid].func);
-
-	lthreads[current_tid].retval =
-			lthreads[current_tid].func (lthreads[current_tid].arg);
-
-	PDEBUG ("thread_launcher: tid %d terminated", current_tid);
-
-	lthreads[current_tid].state = STATE_TERMINATED;
-	thread_yield ();
-	printf ("thread_launcher: should NEVER get here!\n");
-
-	return;
-}
-
-static int thread_start (int id)
-{
-	PDEBUG ("thread_start: id=%d", id);
-	if (id <= MASTER_THREAD || id > MAX_THREADS) {
-		return RC_FAILURE;
-	}
-
-	if (lthreads[id].state != STATE_STOPPED)
-		return RC_FAILURE;
-
-	if (setjmp (lthreads[current_tid].context) == 0) {
-		lthreads[id].state = STATE_RUNNABLE;
-		current_tid = id;
-		PDEBUG ("thread_start: to be stack=0%08x",
-			(unsigned)lthreads[id].stack);
-		setctxsp ((vu_char *)&lthreads[id].stack[STK_SIZE]);
-		thread_launcher ();
-	}
-
-	PDEBUG ("thread_start: Thread id=%d started, parent returns", id);
-
-	return RC_SUCCESS;
-}
-
-#if 0	/* not used so far */
-static int thread_stop (int id)
-{
-	if (id <= MASTER_THREAD || id >= MAX_THREADS)
-		return RC_FAILURE;
-
-	if (current_tid == id)
-		return RC_FAILURE;
-
-	lthreads[id].state = STATE_STOPPED;
-	return RC_SUCCESS;
-}
-#endif	/* not used so far */
-
-static int thread_join (int *ret)
-{
-	int i, j = 0;
-
-	PDEBUG ("thread_join: *ret = %d", *ret);
-
-	if (!(*ret == -1 || *ret > MASTER_THREAD || *ret < MAX_THREADS)) {
-		PDEBUG ("thread_join: invalid tid %d", *ret);
-		return RC_FAILURE;
-	}
-
-	if (*ret == -1) {
-		PDEBUG ("Checking for tid = -1");
-		while (1) {
-			/* PDEBUG("thread_join: start while-loopn"); */
-			j = 0;
-			for (i = MASTER_THREAD + 1; i < MAX_THREADS; i++) {
-				if (lthreads[i].state == STATE_TERMINATED) {
-					*ret = lthreads[i].retval;
-					lthreads[i].state = STATE_EMPTY;
-					/* PDEBUG("thread_join: returning retval %d of tid %d",
-					   ret, i); */
-					return RC_SUCCESS;
-				}
-
-				if (lthreads[i].state != STATE_EMPTY) {
-					PDEBUG ("thread_join: %d used slots tid %d state=%d",
-						   j, i, lthreads[i].state);
-					j++;
-				}
-			}
-			if (j == 0) {
-				PDEBUG ("thread_join: all slots empty!");
-				return RC_FAILURE;
-			}
-			/*  PDEBUG("thread_join: yielding"); */
-			thread_yield ();
-			/*  PDEBUG("thread_join: back from yield"); */
-		}
-	}
-
-	if (lthreads[*ret].state == STATE_TERMINATED) {
-		i = *ret;
-		*ret = lthreads[*ret].retval;
-		lthreads[*ret].state = STATE_EMPTY;
-		PDEBUG ("thread_join: returing %d for tid %d", *ret, i);
-		return RC_SUCCESS;
-	}
-
-	PDEBUG ("thread_join: thread %d is not terminated!", *ret);
-	return RC_FAILURE;
-}