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| 1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 (function(global, utils) { | 5 (function(global, utils) { |
| 6 | 6 |
| 7 "use strict"; | 7 "use strict"; |
| 8 | 8 |
| 9 %CheckIsBootstrapping(); | 9 %CheckIsBootstrapping(); |
| 10 | 10 |
| 11 // ------------------------------------------------------------------- | 11 // ------------------------------------------------------------------- |
| 12 // Imports | 12 // Imports |
| 13 | 13 |
| 14 var GlobalObject = global.Object; | 14 var GlobalObject = global.Object; |
| 15 var MathMax; | 15 var MathMax; |
| 16 var ToNumber; | |
| 17 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol"); | 16 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol"); |
| 18 | 17 |
| 19 utils.Import(function(from) { | 18 utils.Import(function(from) { |
| 20 MathMax = from.MathMax; | 19 MathMax = from.MathMax; |
| 21 ToNumber = from.ToNumber; | |
| 22 }); | 20 }); |
| 23 | 21 |
| 24 // ------------------------------------------------------------------- | 22 // ------------------------------------------------------------------- |
| 25 | 23 |
| 26 | 24 |
| 27 function CheckSharedIntegerTypedArray(ia) { | 25 function CheckSharedIntegerTypedArray(ia) { |
| 28 if (!%IsSharedIntegerTypedArray(ia)) { | 26 if (!%IsSharedIntegerTypedArray(ia)) { |
| 29 throw MakeTypeError(kNotIntegerSharedTypedArray, ia); | 27 throw MakeTypeError(kNotIntegerSharedTypedArray, ia); |
| 30 } | 28 } |
| 31 } | 29 } |
| 32 | 30 |
| 33 function CheckSharedInteger32TypedArray(ia) { | 31 function CheckSharedInteger32TypedArray(ia) { |
| 34 CheckSharedIntegerTypedArray(ia); | 32 CheckSharedIntegerTypedArray(ia); |
| 35 if (%_ClassOf(ia) !== 'Int32Array') { | 33 if (%_ClassOf(ia) !== 'Int32Array') { |
| 36 throw MakeTypeError(kNotInt32SharedTypedArray, ia); | 34 throw MakeTypeError(kNotInt32SharedTypedArray, ia); |
| 37 } | 35 } |
| 38 } | 36 } |
| 39 | 37 |
| 40 //------------------------------------------------------------------- | 38 //------------------------------------------------------------------- |
| 41 | 39 |
| 42 function AtomicsCompareExchangeJS(sta, index, oldValue, newValue) { | 40 function AtomicsCompareExchangeJS(sta, index, oldValue, newValue) { |
| 43 CheckSharedIntegerTypedArray(sta); | 41 CheckSharedIntegerTypedArray(sta); |
| 44 index = TO_INTEGER(index); | 42 index = TO_INTEGER(index); |
| 45 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { | 43 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { |
| 46 return UNDEFINED; | 44 return UNDEFINED; |
| 47 } | 45 } |
| 48 oldValue = ToNumber(oldValue); | 46 oldValue = TO_NUMBER(oldValue); |
| 49 newValue = ToNumber(newValue); | 47 newValue = TO_NUMBER(newValue); |
| 50 return %_AtomicsCompareExchange(sta, index, oldValue, newValue); | 48 return %_AtomicsCompareExchange(sta, index, oldValue, newValue); |
| 51 } | 49 } |
| 52 | 50 |
| 53 function AtomicsLoadJS(sta, index) { | 51 function AtomicsLoadJS(sta, index) { |
| 54 CheckSharedIntegerTypedArray(sta); | 52 CheckSharedIntegerTypedArray(sta); |
| 55 index = TO_INTEGER(index); | 53 index = TO_INTEGER(index); |
| 56 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { | 54 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { |
| 57 return UNDEFINED; | 55 return UNDEFINED; |
| 58 } | 56 } |
| 59 return %_AtomicsLoad(sta, index); | 57 return %_AtomicsLoad(sta, index); |
| 60 } | 58 } |
| 61 | 59 |
| 62 function AtomicsStoreJS(sta, index, value) { | 60 function AtomicsStoreJS(sta, index, value) { |
| 63 CheckSharedIntegerTypedArray(sta); | 61 CheckSharedIntegerTypedArray(sta); |
| 64 index = TO_INTEGER(index); | 62 index = TO_INTEGER(index); |
| 65 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { | 63 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { |
| 66 return UNDEFINED; | 64 return UNDEFINED; |
| 67 } | 65 } |
| 68 value = ToNumber(value); | 66 value = TO_NUMBER(value); |
| 69 return %_AtomicsStore(sta, index, value); | 67 return %_AtomicsStore(sta, index, value); |
| 70 } | 68 } |
| 71 | 69 |
| 72 function AtomicsAddJS(ia, index, value) { | 70 function AtomicsAddJS(ia, index, value) { |
| 73 CheckSharedIntegerTypedArray(ia); | 71 CheckSharedIntegerTypedArray(ia); |
| 74 index = TO_INTEGER(index); | 72 index = TO_INTEGER(index); |
| 75 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 73 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
| 76 return UNDEFINED; | 74 return UNDEFINED; |
| 77 } | 75 } |
| 78 value = ToNumber(value); | 76 value = TO_NUMBER(value); |
| 79 return %_AtomicsAdd(ia, index, value); | 77 return %_AtomicsAdd(ia, index, value); |
| 80 } | 78 } |
| 81 | 79 |
| 82 function AtomicsSubJS(ia, index, value) { | 80 function AtomicsSubJS(ia, index, value) { |
| 83 CheckSharedIntegerTypedArray(ia); | 81 CheckSharedIntegerTypedArray(ia); |
| 84 index = TO_INTEGER(index); | 82 index = TO_INTEGER(index); |
| 85 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 83 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
| 86 return UNDEFINED; | 84 return UNDEFINED; |
| 87 } | 85 } |
| 88 value = ToNumber(value); | 86 value = TO_NUMBER(value); |
| 89 return %_AtomicsSub(ia, index, value); | 87 return %_AtomicsSub(ia, index, value); |
| 90 } | 88 } |
| 91 | 89 |
| 92 function AtomicsAndJS(ia, index, value) { | 90 function AtomicsAndJS(ia, index, value) { |
| 93 CheckSharedIntegerTypedArray(ia); | 91 CheckSharedIntegerTypedArray(ia); |
| 94 index = TO_INTEGER(index); | 92 index = TO_INTEGER(index); |
| 95 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 93 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
| 96 return UNDEFINED; | 94 return UNDEFINED; |
| 97 } | 95 } |
| 98 value = ToNumber(value); | 96 value = TO_NUMBER(value); |
| 99 return %_AtomicsAnd(ia, index, value); | 97 return %_AtomicsAnd(ia, index, value); |
| 100 } | 98 } |
| 101 | 99 |
| 102 function AtomicsOrJS(ia, index, value) { | 100 function AtomicsOrJS(ia, index, value) { |
| 103 CheckSharedIntegerTypedArray(ia); | 101 CheckSharedIntegerTypedArray(ia); |
| 104 index = TO_INTEGER(index); | 102 index = TO_INTEGER(index); |
| 105 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 103 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
| 106 return UNDEFINED; | 104 return UNDEFINED; |
| 107 } | 105 } |
| 108 value = ToNumber(value); | 106 value = TO_NUMBER(value); |
| 109 return %_AtomicsOr(ia, index, value); | 107 return %_AtomicsOr(ia, index, value); |
| 110 } | 108 } |
| 111 | 109 |
| 112 function AtomicsXorJS(ia, index, value) { | 110 function AtomicsXorJS(ia, index, value) { |
| 113 CheckSharedIntegerTypedArray(ia); | 111 CheckSharedIntegerTypedArray(ia); |
| 114 index = TO_INTEGER(index); | 112 index = TO_INTEGER(index); |
| 115 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 113 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
| 116 return UNDEFINED; | 114 return UNDEFINED; |
| 117 } | 115 } |
| 118 value = ToNumber(value); | 116 value = TO_NUMBER(value); |
| 119 return %_AtomicsXor(ia, index, value); | 117 return %_AtomicsXor(ia, index, value); |
| 120 } | 118 } |
| 121 | 119 |
| 122 function AtomicsExchangeJS(ia, index, value) { | 120 function AtomicsExchangeJS(ia, index, value) { |
| 123 CheckSharedIntegerTypedArray(ia); | 121 CheckSharedIntegerTypedArray(ia); |
| 124 index = TO_INTEGER(index); | 122 index = TO_INTEGER(index); |
| 125 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 123 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
| 126 return UNDEFINED; | 124 return UNDEFINED; |
| 127 } | 125 } |
| 128 value = ToNumber(value); | 126 value = TO_NUMBER(value); |
| 129 return %_AtomicsExchange(ia, index, value); | 127 return %_AtomicsExchange(ia, index, value); |
| 130 } | 128 } |
| 131 | 129 |
| 132 function AtomicsIsLockFreeJS(size) { | 130 function AtomicsIsLockFreeJS(size) { |
| 133 return %_AtomicsIsLockFree(size); | 131 return %_AtomicsIsLockFree(size); |
| 134 } | 132 } |
| 135 | 133 |
| 136 // Futexes | 134 // Futexes |
| 137 | 135 |
| 138 function AtomicsFutexWaitJS(ia, index, value, timeout) { | 136 function AtomicsFutexWaitJS(ia, index, value, timeout) { |
| 139 CheckSharedInteger32TypedArray(ia); | 137 CheckSharedInteger32TypedArray(ia); |
| 140 index = TO_INTEGER(index); | 138 index = TO_INTEGER(index); |
| 141 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 139 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
| 142 return UNDEFINED; | 140 return UNDEFINED; |
| 143 } | 141 } |
| 144 if (IS_UNDEFINED(timeout)) { | 142 if (IS_UNDEFINED(timeout)) { |
| 145 timeout = INFINITY; | 143 timeout = INFINITY; |
| 146 } else { | 144 } else { |
| 147 timeout = ToNumber(timeout); | 145 timeout = TO_NUMBER(timeout); |
| 148 if (NUMBER_IS_NAN(timeout)) { | 146 if (NUMBER_IS_NAN(timeout)) { |
| 149 timeout = INFINITY; | 147 timeout = INFINITY; |
| 150 } else { | 148 } else { |
| 151 timeout = MathMax(0, timeout); | 149 timeout = MathMax(0, timeout); |
| 152 } | 150 } |
| 153 } | 151 } |
| 154 return %AtomicsFutexWait(ia, index, value, timeout); | 152 return %AtomicsFutexWait(ia, index, value, timeout); |
| 155 } | 153 } |
| 156 | 154 |
| 157 function AtomicsFutexWakeJS(ia, index, count) { | 155 function AtomicsFutexWakeJS(ia, index, count) { |
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| 206 "or", AtomicsOrJS, | 204 "or", AtomicsOrJS, |
| 207 "xor", AtomicsXorJS, | 205 "xor", AtomicsXorJS, |
| 208 "exchange", AtomicsExchangeJS, | 206 "exchange", AtomicsExchangeJS, |
| 209 "isLockFree", AtomicsIsLockFreeJS, | 207 "isLockFree", AtomicsIsLockFreeJS, |
| 210 "futexWait", AtomicsFutexWaitJS, | 208 "futexWait", AtomicsFutexWaitJS, |
| 211 "futexWake", AtomicsFutexWakeJS, | 209 "futexWake", AtomicsFutexWakeJS, |
| 212 "futexWakeOrRequeue", AtomicsFutexWakeOrRequeueJS, | 210 "futexWakeOrRequeue", AtomicsFutexWakeOrRequeueJS, |
| 213 ]); | 211 ]); |
| 214 | 212 |
| 215 }) | 213 }) |
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