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# simple profiler/timer for JS scripts

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cheezy but low-overhead. call startXTimer(i) and stopXTimer(i), where i
can be 0..9 for now. results are displayed via debug_out at end of
program run.

This was SVN commit r4095.
This commit is contained in:
janwas 2006-07-13 20:09:20 +00:00
parent ac71eefbff
commit ed7b4b5fca
1 changed files with 51 additions and 0 deletions
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51
source/scripting/ScriptGlue.cpp
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@ -569,6 +569,54 @@ JSBool setSimRate(JSContext* cx, JSObject*, uint argc, jsval* argv, jsval* UNUSE
}
static const uint MAX_XTIMERS = 10;
typedef TimerRdtsc XTimerImpl; // type must be kept in sync with timer.h TIMER_USE_RAW_TICKS
static XTimerImpl xtimer_impl;
static XTimerImpl::unit xstart_times[MAX_XTIMERS];
static TimerClient xclients[MAX_XTIMERS];
static char xdescription_buf[MAX_XTIMERS * 11];
static void initXTimers()
{
char* pos = xdescription_buf;
for(uint i = 0; i < MAX_XTIMERS; i++)
{
const char* description = pos;
pos += sprintf(pos, "xtimer %d", i)+1;
timer_add_client(&xclients[i], description);
}
}
JSBool startXTimer(JSContext* cx, JSObject*, uint argc, jsval* argv, jsval* UNUSED(rval))
{
ONCE(initXTimers());
REQUIRE_MIN_PARAMS(1, startXTimer);
REQUIRE_MIN_PARAMS(1, startXTimer);
uint slot = ToPrimitive<uint>(argv[0]);
debug_assert(slot < MAX_XTIMERS);
debug_assert(xstart_times[slot] == 0);
xstart_times[slot] = xtimer_impl.get_timestamp();
return( JS_TRUE );
}
JSBool stopXTimer(JSContext* cx, JSObject*, uint argc, jsval* argv, jsval* UNUSED(rval))
{
REQUIRE_MIN_PARAMS(1, stopXTimer);
REQUIRE_MIN_PARAMS(1, stopXTimer);
uint slot = ToPrimitive<uint>(argv[0]);
debug_assert(slot < MAX_XTIMERS);
debug_assert(xstart_times[slot] != 0);
XTimerImpl::unit dt = xtimer_impl.get_timestamp() - xstart_times[slot];
xstart_times[slot] = 0;
timer_bill_client(&xclients[slot], dt);
return( JS_TRUE );
}
//-----------------------------------------------------------------------------
// Game Setup
//-----------------------------------------------------------------------------
@ -1256,6 +1304,9 @@ JSFunctionSpec ScriptFunctionTable[] =
JS_FUNC(cancelTimer, cancelTimer, 0)
JS_FUNC(setSimRate, setSimRate, 1)
JS_FUNC(startXTimer, startXTimer, 1)
JS_FUNC(stopXTimer, stopXTimer, 1)
// Game Setup
JS_FUNC(startGame, startGame, 0)
JS_FUNC(endGame, endGame, 0)