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DualShock

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Опыт: 5,023
Активность:
Библиотека TimerUtils
Часто вижу что используют эту библиотеку на vjass (не на xgm), которая по сути сохраняет информацию (структуру) на таймер, так же зная таймер можно получить записанную информацию. Стоит ли использовать её? Какие плюсы и минусы этой библиотеки?
((код jass
library TimerUtils initializer init
*********************************************************************
* TimerUtils (red+blue+orange flavors for 1.24b+)
* ----------
*
* To implement it , create a custom text trigger called TimerUtils
* and paste the contents of this script there.
*
* To copy from a map to another, copy the trigger holding this
* library to your map.
*
* (requires vJass) More scripts: htt://www.wc3c.net
*
* For your timer needs:
* * Attaching
* * Recycling (with double-free protection)
*
* set t=NewTimer() : Get a timer (alternative to CreateTimer)
* ReleaseTimer(t) : Relese a timer (alt to DestroyTimer)
* SetTimerData(t,2) : Attach value 2 to timer
* GetTimerData(t) : Get the timer's value.
* You can assume a timer's value is 0
* after NewTimer.
*
* Multi-flavor:
* Set USE_HASH_TABLE to true if you don't want to complicate your life.
*
* If you like speed and giberish try learning about the other flavors.
*
********************************************************************
================================================================
globals
How to tweak timer utils:
USE_HASH_TABLE = true (new blue)
* SAFEST
* SLOWEST (though hash tables are kind of fast)

USE_HASH_TABLE = false, USE_FLEXIBLE_OFFSET = true (orange)
* kinda safe (except there is a limit in the number of timers)
* ALMOST FAST

USE_HASH_TABLE = false, USE_FLEXIBLE_OFFSET = false (red)
* THE FASTEST (though is only faster than the previous method
after using the optimizer on the map)
* THE LEAST SAFE ( you may have to tweak OFSSET manually for it to
work)

private constant boolean USE_HASH_TABLE = true
private constant boolean USE_FLEXIBLE_OFFSET = false
private constant integer OFFSET = 0x100000
private integer VOFFSET = OFFSET

Timers to preload at map init:
private constant integer QUANTITY = 256

Changing this to something big will allow you to keep recycling
timers even when there are already AN INCREDIBLE AMOUNT of timers in
the stack. But it will make things far slower so that's probably a bad idea...
private constant integer ARRAY_SIZE = 8190
endglobals
==================================================================================================​
globals
private integer array data[ARRAY_SIZE]
private hashtable ht
endglobals
It is dependent on jasshelper's recent inlining optimization in order to perform correctly.
function SetTimerData takes timer t, integer value returns nothing
static if(USE_HASH_TABLE) then
new blue
call SaveInteger(ht,0,GetHandleId(t), value)

elseif (USE_FLEXIBLE_OFFSET) then
orange
static if (DEBUG_MODE) then
if(GetHandleId(t)-VOFFSET<0) then
call BJDebugMsg("SetTimerData: Wrong handle id, only use SetTimerData on timers created by NewTimer")
endif
endif
set data[GetHandleId(t)-VOFFSET]=value
else
new red
static if (DEBUG_MODE) then
if(GetHandleId(t)-OFFSET<0) then
call BJDebugMsg("SetTimerData: Wrong handle id, only use SetTimerData on timers created by NewTimer")
endif
endif
set data[GetHandleId(t)-OFFSET]=value
endif
endfunction
function GetTimerData takes timer t returns integer
static if(USE_HASH_TABLE) then
new blue
return LoadInteger(ht,0,GetHandleId(t) )

elseif (USE_FLEXIBLE_OFFSET) then
orange
static if (DEBUG_MODE) then
if(GetHandleId(t)-VOFFSET<0) then
call BJDebugMsg("SetTimerData: Wrong handle id, only use SetTimerData on timers created by NewTimer")
endif
endif
return data[GetHandleId(t)-VOFFSET]
else
new red
static if (DEBUG_MODE) then
if(GetHandleId(t)-OFFSET<0) then
call BJDebugMsg("SetTimerData: Wrong handle id, only use SetTimerData on timers created by NewTimer")
endif
endif
return data[GetHandleId(t)-OFFSET]
endif
endfunction
==========================================================================================
globals
private timer array tT[ARRAY_SIZE]
private integer tN = 0
private constant integer HELD=0x28829022
use a totally random number here, the more improbable someone uses it, the better.
endglobals
==========================================================================================
function NewTimer takes nothing returns timer
if (tN==0) then
If this happens then the QUANTITY rule has already been broken, try to fix the
issue, else fail.
debug call BJDebugMsg("NewTimer: Warning, Exceeding TimerUtils_QUANTITY, make sure all timers are getting recycled correctly")
static if( not USE_HASH_TABLE) then
debug call BJDebugMsg("In case of errors, please increase it accordingly, or set TimerUtils_USE_HASH_TABLE to true")
set tT[0]=CreateTimer()
static if( USE_FLEXIBLE_OFFSET) then
if (GetHandleId(tT[0])-VOFFSET<0) or (GetHandleId(tT[0])-VOFFSET>=ARRAY_SIZE) then
all right, couldn't fix it
call BJDebugMsg("NewTimer: Unable to allocate a timer, you should probably set TimerUtils_USE_HASH_TABLE to true or fix timer leaks.")
return null
endif
else
if (GetHandleId(tT[0])-OFFSET<0) or (GetHandleId(tT[0])-OFFSET>=ARRAY_SIZE) then
all right, couldn't fix it
call BJDebugMsg("NewTimer: Unable to allocate a timer, you should probably set TimerUtils_USE_HASH_TABLE to true or fix timer leaks.")
return null
endif
endif
endif
else
set tN=tN-1
endif
call SetTimerData(tT[tN],0)
return tT[tN]
endfunction
==========================================================================================
function ReleaseTimer takes timer t returns nothing
if(t==null) then
debug call BJDebugMsg("Warning: attempt to release a null timer")
return
endif
if (tN==ARRAY_SIZE) then
debug call BJDebugMsg("Warning: Timer stack is full, destroying timer!!")
stack is full, the map already has much more troubles than the chance of bug
call DestroyTimer(t)
else
call PauseTimer(t)
if(GetTimerData(t)==HELD) then
debug call BJDebugMsg("Warning: ReleaseTimer: Double free!")
return
endif
call SetTimerData(t,HELD)
set tT[tN]=t
set tN=tN+1
endif
endfunction
private function init takes nothing returns nothing
local integer i=0
local integer o=-1
local boolean oops = false

static if( USE_HASH_TABLE ) then
set ht = InitHashtable()
loop
exitwhen(i==QUANTITY)
set tT[i]=CreateTimer()
call SetTimerData(tT[i], HELD)
set i=i+1
endloop
set tN = QUANTITY
else
loop
set i=0
loop
exitwhen (i==QUANTITY)
set tT[i] = CreateTimer()
if(i==0) then
set VOFFSET = GetHandleId(tT[i])
static if(USE_FLEXIBLE_OFFSET) then
set o=VOFFSET
else
set o=OFFSET
endif
endif
if (GetHandleId(tT[i])-o>=ARRAY_SIZE) then
exitwhen true
endif
if (GetHandleId(tT[i])-o>=0) then
set i=i+1
endif
endloop
set tN = i
exitwhen(tN == QUANTITY)
set oops = true
exitwhen not USE_FLEXIBLE_OFFSET
debug call BJDebugMsg("TimerUtils_init: Failed a initialization attempt, will try again")
endloop

if(oops) then
static if ( USE_FLEXIBLE_OFFSET) then
debug call BJDebugMsg("The problem has been fixed.")
If this message doesn't appear then there is so much
handle id fragmentation that it was impossible to preload
so many timers and the thread crashed! Therefore this
debug message is useful.
elseif(DEBUG_MODE) then
call BJDebugMsg("There were problems and the new timer limit is "+I2S(i))
call BJDebugMsg("This is a rare ocurrence, if the timer limit is too low:")
call BJDebugMsg("a) Change USE_FLEXIBLE_OFFSET to true (reduces performance a little)")
call BJDebugMsg("b) or try changing OFFSET to "+I2S(VOFFSET) )
endif
endif
endif
endfunction
endlibrary
))
Старый 05.12.2011, 19:02
FellGuard
Losyash
offline
Опыт: 39,547
Активность:
Плюсы, как от любой другой готовой системы - не нужно переизобретать колесо.
Аттачит целое число к таймеру, использует в качестве БД либо хэш-таблицу, либо массив, индекс которого вычисляется из хэндла таймера. По сути всё расписано в первом толстом комментарии в коде.
Старый 05.12.2011, 19:30
youtube
сктыщь
offline
Опыт: 8,025
Активность:
я использую ее почти в каждом скиле
вполне удобная штука
вот примерчики
Старый 05.12.2011, 20:59
DualShock

offline
Опыт: 5,023
Активность:
FellGuard, youtube, ответ на свой вопрос я получил, спасибо.
Тему можно закрыть.
Старый 05.12.2011, 21:25
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