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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 | |
16 var MathMax; | 15 var MathMax; |
| 16 var ToNumber; |
17 | 17 |
18 utils.Import(function(from) { | 18 utils.Import(function(from) { |
19 MathMax = from.MathMax; | 19 MathMax = from.MathMax; |
| 20 ToNumber = from.ToNumber; |
20 }); | 21 }); |
21 | 22 |
22 // ------------------------------------------------------------------- | 23 // ------------------------------------------------------------------- |
23 | 24 |
24 | 25 |
25 function CheckSharedTypedArray(sta) { | 26 function CheckSharedTypedArray(sta) { |
26 if (!%IsSharedTypedArray(sta)) { | 27 if (!%IsSharedTypedArray(sta)) { |
27 throw MakeTypeError(kNotSharedTypedArray, sta); | 28 throw MakeTypeError(kNotSharedTypedArray, sta); |
28 } | 29 } |
29 } | 30 } |
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42 } | 43 } |
43 | 44 |
44 //------------------------------------------------------------------- | 45 //------------------------------------------------------------------- |
45 | 46 |
46 function AtomicsCompareExchangeJS(sta, index, oldValue, newValue) { | 47 function AtomicsCompareExchangeJS(sta, index, oldValue, newValue) { |
47 CheckSharedTypedArray(sta); | 48 CheckSharedTypedArray(sta); |
48 index = $toInteger(index); | 49 index = $toInteger(index); |
49 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { | 50 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { |
50 return UNDEFINED; | 51 return UNDEFINED; |
51 } | 52 } |
52 oldValue = $toNumber(oldValue); | 53 oldValue = ToNumber(oldValue); |
53 newValue = $toNumber(newValue); | 54 newValue = ToNumber(newValue); |
54 return %_AtomicsCompareExchange(sta, index, oldValue, newValue); | 55 return %_AtomicsCompareExchange(sta, index, oldValue, newValue); |
55 } | 56 } |
56 | 57 |
57 function AtomicsLoadJS(sta, index) { | 58 function AtomicsLoadJS(sta, index) { |
58 CheckSharedTypedArray(sta); | 59 CheckSharedTypedArray(sta); |
59 index = $toInteger(index); | 60 index = $toInteger(index); |
60 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { | 61 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { |
61 return UNDEFINED; | 62 return UNDEFINED; |
62 } | 63 } |
63 return %_AtomicsLoad(sta, index); | 64 return %_AtomicsLoad(sta, index); |
64 } | 65 } |
65 | 66 |
66 function AtomicsStoreJS(sta, index, value) { | 67 function AtomicsStoreJS(sta, index, value) { |
67 CheckSharedTypedArray(sta); | 68 CheckSharedTypedArray(sta); |
68 index = $toInteger(index); | 69 index = $toInteger(index); |
69 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { | 70 if (index < 0 || index >= %_TypedArrayGetLength(sta)) { |
70 return UNDEFINED; | 71 return UNDEFINED; |
71 } | 72 } |
72 value = $toNumber(value); | 73 value = ToNumber(value); |
73 return %_AtomicsStore(sta, index, value); | 74 return %_AtomicsStore(sta, index, value); |
74 } | 75 } |
75 | 76 |
76 function AtomicsAddJS(ia, index, value) { | 77 function AtomicsAddJS(ia, index, value) { |
77 CheckSharedIntegerTypedArray(ia); | 78 CheckSharedIntegerTypedArray(ia); |
78 index = $toInteger(index); | 79 index = $toInteger(index); |
79 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 80 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
80 return UNDEFINED; | 81 return UNDEFINED; |
81 } | 82 } |
82 value = $toNumber(value); | 83 value = ToNumber(value); |
83 return %_AtomicsAdd(ia, index, value); | 84 return %_AtomicsAdd(ia, index, value); |
84 } | 85 } |
85 | 86 |
86 function AtomicsSubJS(ia, index, value) { | 87 function AtomicsSubJS(ia, index, value) { |
87 CheckSharedIntegerTypedArray(ia); | 88 CheckSharedIntegerTypedArray(ia); |
88 index = $toInteger(index); | 89 index = $toInteger(index); |
89 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 90 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
90 return UNDEFINED; | 91 return UNDEFINED; |
91 } | 92 } |
92 value = $toNumber(value); | 93 value = ToNumber(value); |
93 return %_AtomicsSub(ia, index, value); | 94 return %_AtomicsSub(ia, index, value); |
94 } | 95 } |
95 | 96 |
96 function AtomicsAndJS(ia, index, value) { | 97 function AtomicsAndJS(ia, index, value) { |
97 CheckSharedIntegerTypedArray(ia); | 98 CheckSharedIntegerTypedArray(ia); |
98 index = $toInteger(index); | 99 index = $toInteger(index); |
99 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 100 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
100 return UNDEFINED; | 101 return UNDEFINED; |
101 } | 102 } |
102 value = $toNumber(value); | 103 value = ToNumber(value); |
103 return %_AtomicsAnd(ia, index, value); | 104 return %_AtomicsAnd(ia, index, value); |
104 } | 105 } |
105 | 106 |
106 function AtomicsOrJS(ia, index, value) { | 107 function AtomicsOrJS(ia, index, value) { |
107 CheckSharedIntegerTypedArray(ia); | 108 CheckSharedIntegerTypedArray(ia); |
108 index = $toInteger(index); | 109 index = $toInteger(index); |
109 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 110 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
110 return UNDEFINED; | 111 return UNDEFINED; |
111 } | 112 } |
112 value = $toNumber(value); | 113 value = ToNumber(value); |
113 return %_AtomicsOr(ia, index, value); | 114 return %_AtomicsOr(ia, index, value); |
114 } | 115 } |
115 | 116 |
116 function AtomicsXorJS(ia, index, value) { | 117 function AtomicsXorJS(ia, index, value) { |
117 CheckSharedIntegerTypedArray(ia); | 118 CheckSharedIntegerTypedArray(ia); |
118 index = $toInteger(index); | 119 index = $toInteger(index); |
119 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 120 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
120 return UNDEFINED; | 121 return UNDEFINED; |
121 } | 122 } |
122 value = $toNumber(value); | 123 value = ToNumber(value); |
123 return %_AtomicsXor(ia, index, value); | 124 return %_AtomicsXor(ia, index, value); |
124 } | 125 } |
125 | 126 |
126 function AtomicsExchangeJS(ia, index, value) { | 127 function AtomicsExchangeJS(ia, index, value) { |
127 CheckSharedIntegerTypedArray(ia); | 128 CheckSharedIntegerTypedArray(ia); |
128 index = $toInteger(index); | 129 index = $toInteger(index); |
129 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 130 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
130 return UNDEFINED; | 131 return UNDEFINED; |
131 } | 132 } |
132 value = $toNumber(value); | 133 value = ToNumber(value); |
133 return %_AtomicsExchange(ia, index, value); | 134 return %_AtomicsExchange(ia, index, value); |
134 } | 135 } |
135 | 136 |
136 function AtomicsIsLockFreeJS(size) { | 137 function AtomicsIsLockFreeJS(size) { |
137 return %_AtomicsIsLockFree(size); | 138 return %_AtomicsIsLockFree(size); |
138 } | 139 } |
139 | 140 |
140 // Futexes | 141 // Futexes |
141 | 142 |
142 function AtomicsFutexWaitJS(ia, index, value, timeout) { | 143 function AtomicsFutexWaitJS(ia, index, value, timeout) { |
143 CheckSharedInteger32TypedArray(ia); | 144 CheckSharedInteger32TypedArray(ia); |
144 index = $toInteger(index); | 145 index = $toInteger(index); |
145 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { | 146 if (index < 0 || index >= %_TypedArrayGetLength(ia)) { |
146 return UNDEFINED; | 147 return UNDEFINED; |
147 } | 148 } |
148 if (IS_UNDEFINED(timeout)) { | 149 if (IS_UNDEFINED(timeout)) { |
149 timeout = INFINITY; | 150 timeout = INFINITY; |
150 } else { | 151 } else { |
151 timeout = $toNumber(timeout); | 152 timeout = ToNumber(timeout); |
152 if (NUMBER_IS_NAN(timeout)) { | 153 if (NUMBER_IS_NAN(timeout)) { |
153 timeout = INFINITY; | 154 timeout = INFINITY; |
154 } else { | 155 } else { |
155 timeout = MathMax(0, timeout); | 156 timeout = MathMax(0, timeout); |
156 } | 157 } |
157 } | 158 } |
158 return %AtomicsFutexWait(ia, index, value, timeout); | 159 return %AtomicsFutexWait(ia, index, value, timeout); |
159 } | 160 } |
160 | 161 |
161 function AtomicsFutexWakeJS(ia, index, count) { | 162 function AtomicsFutexWakeJS(ia, index, count) { |
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210 "or", AtomicsOrJS, | 211 "or", AtomicsOrJS, |
211 "xor", AtomicsXorJS, | 212 "xor", AtomicsXorJS, |
212 "exchange", AtomicsExchangeJS, | 213 "exchange", AtomicsExchangeJS, |
213 "isLockFree", AtomicsIsLockFreeJS, | 214 "isLockFree", AtomicsIsLockFreeJS, |
214 "futexWait", AtomicsFutexWaitJS, | 215 "futexWait", AtomicsFutexWaitJS, |
215 "futexWake", AtomicsFutexWakeJS, | 216 "futexWake", AtomicsFutexWakeJS, |
216 "futexWakeOrRequeue", AtomicsFutexWakeOrRequeueJS, | 217 "futexWakeOrRequeue", AtomicsFutexWakeOrRequeueJS, |
217 ]); | 218 ]); |
218 | 219 |
219 }) | 220 }) |
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