get rid of sleepForInterval() which didn't seem to be used anywhere in the source tree. Also get rid of ported.h which seem to be used only (possibly) in the sim. moved the implementation there.

1 files changed, 0 insertions, 125 deletions

diff --git a/libs/utils/Timers.cpp b/libs/utils/Timers.cpp
index 2abc811a06e9..784f035dc03a 100644
--- a/libs/utils/Timers.cpp
+++ b/libs/utils/Timers.cpp
@@ -18,7 +18,6 @@
 // Timer functions.
 //
 #include <utils/Timers.h>
-#include <utils/ported.h>     // may need usleep
 #include <utils/Log.h>
 
 #include <stdlib.h>
@@ -54,130 +53,6 @@ nsecs_t systemTime(int clock)
 #endif
 }
 
-//#define MONITOR_USLEEP
-
-/*
- * Sleep long enough that we'll wake up "interval" milliseconds after
- * the previous snooze.
- *
- * The "nextTick" argument is updated on each call, and should be passed
- * in every time.  Set its fields to zero on the first call.
- *
- * Returns the #of intervals we have overslept, which will be zero if we're
- * on time.  [Currently just returns 0 or 1.]
- */
-int sleepForInterval(long interval, struct timeval* pNextTick)
-{
-    struct timeval now;
-    long long timeBeforeNext;
-    long sleepTime = 0;
-    bool overSlept = false;
-    //int usleepBias = 0;
-
-#ifdef USLEEP_BIAS
-    /*
-     * Linux likes to add 9000ms or so.
-     * [not using this for now]
-     */
-    //usleepBias = USLEEP_BIAS;
-#endif
-
-    gettimeofday(&now, NULL);
-
-    if (pNextTick->tv_sec == 0) {
-        /* special-case for first time through */
-        *pNextTick = now;
-        sleepTime = interval;
-        android::DurationTimer::addToTimeval(pNextTick, interval);
-    } else {
-        /*
-         * Compute how much time there is before the next tick.  If this
-         * value is negative, we've run over.  If we've run over a little
-         * bit we can shorten the next frame to keep the pace steady, but
-         * if we've dramatically overshot we need to re-sync.
-         */
-        timeBeforeNext = android::DurationTimer::subtractTimevals(pNextTick, &now);
-        //printf("TOP: now=%ld.%ld next=%ld.%ld diff=%ld\n",
-        //    now.tv_sec, now.tv_usec, pNextTick->tv_sec, pNextTick->tv_usec,
-        //    (long) timeBeforeNext);
-        if (timeBeforeNext < -interval) {
-            /* way over */
-            overSlept = true;
-            sleepTime = 0;
-            *pNextTick = now;
-        } else if (timeBeforeNext <= 0) {
-            /* slightly over, keep the pace steady */
-            overSlept = true;
-            sleepTime = 0;
-        } else if (timeBeforeNext <= interval) {
-            /* right on schedule */
-            sleepTime = timeBeforeNext;
-        } else if (timeBeforeNext > interval && timeBeforeNext <= 2*interval) {
-            /* sleep call returned early; do a longer sleep this time */
-            sleepTime = timeBeforeNext;
-        } else if (timeBeforeNext > interval) {
-            /* we went back in time -- somebody updated system clock? */
-            /* (could also be a *seriously* broken usleep()) */
-            LOG(LOG_DEBUG, "",
-                " Impossible: timeBeforeNext = %ld\n", (long)timeBeforeNext);
-            sleepTime = 0;
-            *pNextTick = now;
-        }
-        android::DurationTimer::addToTimeval(pNextTick, interval);
-    }
-    //printf(" Before sleep: now=%ld.%ld next=%ld.%ld sleepTime=%ld\n",
-    //    now.tv_sec, now.tv_usec, pNextTick->tv_sec, pNextTick->tv_usec,
-    //    sleepTime);
-
-    /*
-     * Sleep for the designated period of time.
-     *
-     * Linux tends to sleep for longer than requested, often by 17-18ms.
-     * MinGW tends to sleep for less than requested, by as much as 14ms,
-     * but occasionally oversleeps for 40+ms (looks like some external
-     * factors plus round-off on a 64Hz clock).  Cygwin is pretty steady.
-     *
-     * If you start the MinGW version, and then launch the Cygwin version,
-     * the MinGW clock becomes more erratic.  Not entirely sure why.
-     *
-     * (There's a lot of stuff here; it's really just a usleep() call with
-     * a bunch of instrumentation.)
-     */
-    if (sleepTime > 0) {
-#if defined(MONITOR_USLEEP)
-        struct timeval before, after;
-        long long actual;
-
-        gettimeofday(&before, NULL);
-        usleep((long) sleepTime);
-        gettimeofday(&after, NULL);
-
-        /* check usleep() accuracy; default Linux threads are pretty sloppy */
-        actual = android::DurationTimer::subtractTimevals(&after, &before);
-        if ((long) actual < sleepTime - 14000 /*(sleepTime/10)*/ ||
-            (long) actual > sleepTime + 20000 /*(sleepTime/10)*/)
-        {
-            LOG(LOG_DEBUG, "", " Odd usleep: req=%ld, actual=%ld\n", sleepTime,
-                (long) actual);
-        }
-#else
-#ifdef HAVE_WIN32_THREADS
-        Sleep( sleepTime/1000 );
-#else        
-        usleep((long) sleepTime);
-#endif        
-#endif
-    }
-
-    //printf("slept %d\n", sleepTime);
-
-    if (overSlept)
-        return 1;       // close enough
-    else
-        return 0;
-}
-
-
 /*
  * ===========================================================================
  *      DurationTimer