Remove tools again. Should have done it with svn merge --reintegrate

1 files changed, 0 insertions, 243 deletions

diff --git a/tools/plink/timing.c b/tools/plink/timing.c
deleted file mode 100644
index 2b7b70cb9..000000000
--- a/tools/plink/timing.c
+++ /dev/null
@@ -1,243 +0,0 @@
-/*

- * timing.c

- * 

- * This module tracks any timers set up by schedule_timer(). It

- * keeps all the currently active timers in a list; it informs the

- * front end of when the next timer is due to go off if that

- * changes; and, very importantly, it tracks the context pointers

- * passed to schedule_timer(), so that if a context is freed all

- * the timers associated with it can be immediately annulled.

- */

-

-#include <assert.h>

-#include <stdio.h>

-

-#include "putty.h"

-#include "tree234.h"

-

-struct timer {

-    timer_fn_t fn;

-    void *ctx;

-    long now;

-};

-

-static tree234 *timers = NULL;

-static tree234 *timer_contexts = NULL;

-static long now = 0L;

-

-static int compare_timers(void *av, void *bv)

-{

-    struct timer *a = (struct timer *)av;

-    struct timer *b = (struct timer *)bv;

-    long at = a->now - now;

-    long bt = b->now - now;

-

-    if (at < bt)

-	return -1;

-    else if (at > bt)

-	return +1;

-

-    /*

-     * Failing that, compare on the other two fields, just so that

-     * we don't get unwanted equality.

-     */

-#ifdef __LCC__

-    /* lcc won't let us compare function pointers. Legal, but annoying. */

-    {

-	int c = memcmp(&a->fn, &b->fn, sizeof(a->fn));

-	if (c < 0)

-	    return -1;

-	else if (c > 0)

-	    return +1;

-    }

-#else    

-    if (a->fn < b->fn)

-	return -1;

-    else if (a->fn > b->fn)

-	return +1;

-#endif

-

-    if (a->ctx < b->ctx)

-	return -1;

-    else if (a->ctx > b->ctx)

-	return +1;

-

-    /*

-     * Failing _that_, the two entries genuinely are equal, and we

-     * never have a need to store them separately in the tree.

-     */

-    return 0;

-}

-

-static int compare_timer_contexts(void *av, void *bv)

-{

-    char *a = (char *)av;

-    char *b = (char *)bv;

-    if (a < b)

-	return -1;

-    else if (a > b)

-	return +1;

-    return 0;

-}

-

-static void init_timers(void)

-{

-    if (!timers) {

-	timers = newtree234(compare_timers);

-	timer_contexts = newtree234(compare_timer_contexts);

-	now = GETTICKCOUNT();

-    }

-}

-

-long schedule_timer(int ticks, timer_fn_t fn, void *ctx)

-{

-    long when;

-    struct timer *t, *first;

-

-    init_timers();

-

-    when = ticks + GETTICKCOUNT();

-

-    /*

-     * Just in case our various defences against timing skew fail

-     * us: if we try to schedule a timer that's already in the

-     * past, we instead schedule it for the immediate future.

-     */

-    if (when - now <= 0)

-	when = now + 1;

-

-    t = snew(struct timer);

-    t->fn = fn;

-    t->ctx = ctx;

-    t->now = when;

-

-    if (t != add234(timers, t)) {

-	sfree(t);		       /* identical timer already exists */

-    } else {

-	add234(timer_contexts, t->ctx);/* don't care if this fails */

-    }

-

-    first = (struct timer *)index234(timers, 0);

-    if (first == t) {

-	/*

-	 * This timer is the very first on the list, so we must

-	 * notify the front end.

-	 */

-	timer_change_notify(first->now);

-    }

-

-    return when;

-}

-

-/*

- * Call to run any timers whose time has reached the present.

- * Returns the time (in ticks) expected until the next timer after

- * that triggers.

- */

-int run_timers(long anow, long *next)

-{

-    struct timer *first;

-

-    init_timers();

-

-#ifdef TIMING_SYNC

-    /*

-     * In this ifdef I put some code which deals with the

-     * possibility that `anow' disagrees with GETTICKCOUNT by a

-     * significant margin. Our strategy for dealing with it differs

-     * depending on platform, because on some platforms

-     * GETTICKCOUNT is more likely to be right whereas on others

-     * `anow' is a better gold standard.

-     */

-    {

-	long tnow = GETTICKCOUNT();

-

-	if (tnow + TICKSPERSEC/50 - anow < 0 ||

-	    anow + TICKSPERSEC/50 - tnow < 0

-	    ) {

-#if defined TIMING_SYNC_ANOW

-	    /*

-	     * If anow is accurate and the tick count is wrong,

-	     * this is likely to be because the tick count is

-	     * derived from the system clock which has changed (as

-	     * can occur on Unix). Therefore, we resolve this by

-	     * inventing an offset which is used to adjust all

-	     * future output from GETTICKCOUNT.

-	     * 

-	     * A platform which defines TIMING_SYNC_ANOW is

-	     * expected to have also defined this offset variable

-	     * in (its platform-specific adjunct to) putty.h.

-	     * Therefore we can simply reference it here and assume

-	     * that it will exist.

-	     */

-	    tickcount_offset += anow - tnow;

-#elif defined TIMING_SYNC_TICKCOUNT

-	    /*

-	     * If the tick count is more likely to be accurate, we

-	     * simply use that as our time value, which may mean we

-	     * run no timers in this call (because we got called

-	     * early), or alternatively it may mean we run lots of

-	     * timers in a hurry because we were called late.

-	     */

-	    anow = tnow;

-#else

-/*

- * Any platform which defines TIMING_SYNC must also define one of the two

- * auxiliary symbols TIMING_SYNC_ANOW and TIMING_SYNC_TICKCOUNT, to

- * indicate which measurement to trust when the two disagree.

- */

-#error TIMING_SYNC definition incomplete

-#endif

-	}

-    }

-#endif

-

-    now = anow;

-

-    while (1) {

-	first = (struct timer *)index234(timers, 0);

-

-	if (!first)

-	    return FALSE;	       /* no timers remaining */

-

-	if (find234(timer_contexts, first->ctx, NULL) == NULL) {

-	    /*

-	     * This timer belongs to a context that has been

-	     * expired. Delete it without running.

-	     */

-	    delpos234(timers, 0);

-	    sfree(first);

-	} else if (first->now - now <= 0) {

-	    /*

-	     * This timer is active and has reached its running

-	     * time. Run it.

-	     */

-	    delpos234(timers, 0);

-	    first->fn(first->ctx, first->now);

-	    sfree(first);

-	} else {

-	    /*

-	     * This is the first still-active timer that is in the

-	     * future. Return how long it has yet to go.

-	     */

-	    *next = first->now;

-	    return TRUE;

-	}

-    }

-}

-

-/*

- * Call to expire all timers associated with a given context.

- */

-void expire_timer_context(void *ctx)

-{

-    init_timers();

-

-    /*

-     * We don't bother to check the return value; if the context

-     * already wasn't in the tree (presumably because no timers

-     * ever actually got scheduled for it) then that's fine and we

-     * simply don't need to do anything.

-     */

-    del234(timer_contexts, ctx);

-}