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comparison src/share/vm/runtime/atomic.hpp @ 7212:291ffc492eb6

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Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Fri, 14 Dec 2012 14:35:13 +0100
parents cd3d6a6b95d9
children 0598674c0056
comparison
equal deleted inserted replaced
7163:2ed8d74e5984 7212:291ffc492eb6
28 #include "memory/allocation.hpp" 28 #include "memory/allocation.hpp"
29 29
30 class Atomic : AllStatic { 30 class Atomic : AllStatic {
31 public: 31 public:
32 // Atomically store to a location 32 // Atomically store to a location
33 static void store (jbyte store_value, jbyte* dest); 33 inline static void store (jbyte store_value, jbyte* dest);
34 static void store (jshort store_value, jshort* dest); 34 inline static void store (jshort store_value, jshort* dest);
35 static void store (jint store_value, jint* dest); 35 inline static void store (jint store_value, jint* dest);
36 static void store (jlong store_value, jlong* dest); 36 inline static void store (jlong store_value, jlong* dest);
37 static void store_ptr(intptr_t store_value, intptr_t* dest); 37 inline static void store_ptr(intptr_t store_value, intptr_t* dest);
38 static void store_ptr(void* store_value, void* dest); 38 inline static void store_ptr(void* store_value, void* dest);
39 39
40 static void store (jbyte store_value, volatile jbyte* dest); 40 inline static void store (jbyte store_value, volatile jbyte* dest);
41 static void store (jshort store_value, volatile jshort* dest); 41 inline static void store (jshort store_value, volatile jshort* dest);
42 static void store (jint store_value, volatile jint* dest); 42 inline static void store (jint store_value, volatile jint* dest);
43 static void store (jlong store_value, volatile jlong* dest); 43 inline static void store (jlong store_value, volatile jlong* dest);
44 static void store_ptr(intptr_t store_value, volatile intptr_t* dest); 44 inline static void store_ptr(intptr_t store_value, volatile intptr_t* dest);
45 static void store_ptr(void* store_value, volatile void* dest); 45 inline static void store_ptr(void* store_value, volatile void* dest);
46 46
47 static jlong load(volatile jlong* src); 47 inline static jlong load(volatile jlong* src);
48 48
49 // Atomically add to a location, return updated value 49 // Atomically add to a location, return updated value
50 static jint add (jint add_value, volatile jint* dest); 50 inline static jint add (jint add_value, volatile jint* dest);
51 static intptr_t add_ptr(intptr_t add_value, volatile intptr_t* dest); 51 inline static intptr_t add_ptr(intptr_t add_value, volatile intptr_t* dest);
52 static void* add_ptr(intptr_t add_value, volatile void* dest); 52 inline static void* add_ptr(intptr_t add_value, volatile void* dest);
53 53
54 static jlong add (jlong add_value, volatile jlong* dest); 54 static jlong add (jlong add_value, volatile jlong* dest);
55 55
56 // Atomically increment location 56 // Atomically increment location
57 static void inc (volatile jint* dest); 57 inline static void inc (volatile jint* dest);
58 static void inc_ptr(volatile intptr_t* dest); 58 inline static void inc_ptr(volatile intptr_t* dest);
59 static void inc_ptr(volatile void* dest); 59 inline static void inc_ptr(volatile void* dest);
60 60
61 // Atomically decrement a location 61 // Atomically decrement a location
62 static void dec (volatile jint* dest); 62 inline static void dec (volatile jint* dest);
63 static void dec_ptr(volatile intptr_t* dest); 63 inline static void dec_ptr(volatile intptr_t* dest);
64 static void dec_ptr(volatile void* dest); 64 inline static void dec_ptr(volatile void* dest);
65 65
66 // Performs atomic exchange of *dest with exchange_value. Returns old prior value of *dest. 66 // Performs atomic exchange of *dest with exchange_value. Returns old prior value of *dest.
67 static jint xchg(jint exchange_value, volatile jint* dest); 67 inline static jint xchg(jint exchange_value, volatile jint* dest);
68 static unsigned int xchg(unsigned int exchange_value, 68 static unsigned int xchg(unsigned int exchange_value, volatile unsigned int* dest);
69 volatile unsigned int* dest);
70 69
71 static intptr_t xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest); 70 inline static intptr_t xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest);
72 static void* xchg_ptr(void* exchange_value, volatile void* dest); 71 inline static void* xchg_ptr(void* exchange_value, volatile void* dest);
73 72
74 // Performs atomic compare of *dest and compare_value, and exchanges *dest with exchange_value 73 // Performs atomic compare of *dest and compare_value, and exchanges *dest with exchange_value
75 // if the comparison succeeded. Returns prior value of *dest. Guarantees a two-way memory 74 // if the comparison succeeded. Returns prior value of *dest. Guarantees a two-way memory
76 // barrier across the cmpxchg. I.e., it's really a 'fence_cmpxchg_acquire'. 75 // barrier across the cmpxchg. I.e., it's really a 'fence_cmpxchg_acquire'.
77 static jbyte cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value); 76 static jbyte cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value);
78 static jint cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value); 77 inline static jint cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value);
79 static jlong cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value); 78 inline static jlong cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value);
80 79
81 static unsigned int cmpxchg(unsigned int exchange_value, 80 static unsigned int cmpxchg(unsigned int exchange_value,
82 volatile unsigned int* dest, 81 volatile unsigned int* dest,
83 unsigned int compare_value); 82 unsigned int compare_value);
84 83
85 static intptr_t cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); 84 inline static intptr_t cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);
86 static void* cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value); 85 inline static void* cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value);
87 }; 86 };
88 87
89 #endif // SHARE_VM_RUNTIME_ATOMIC_HPP 88 #endif // SHARE_VM_RUNTIME_ATOMIC_HPP