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comparison src/os/solaris/vm/osThread_solaris.cpp @ 274:f7e6d42d9323

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6618886: Anonymous objects can be destructed immediately and so should not be used Reviewed-by: dholmes, kamg
author xlu
date Fri, 01 Aug 2008 15:18:14 -0700
parents a61af66fc99e
children 9ee9cf798b59
comparison
equal deleted inserted replaced
273:6f17a7c9f8b4 274:f7e6d42d9323
67 67
68 // used after a thread is suspended 68 // used after a thread is suspended
69 static intptr_t compare_and_exchange_current_callback ( 69 static intptr_t compare_and_exchange_current_callback (
70 intptr_t callback, intptr_t *addr, intptr_t compare_value, Mutex *sync) { 70 intptr_t callback, intptr_t *addr, intptr_t compare_value, Mutex *sync) {
71 if (VM_Version::supports_compare_and_exchange()) { 71 if (VM_Version::supports_compare_and_exchange()) {
72 return Atomic::cmpxchg_ptr(callback, addr, compare_value); 72 return Atomic::cmpxchg_ptr(callback, addr, compare_value);
73 } else { 73 } else {
74 MutexLockerEx(sync, Mutex::_no_safepoint_check_flag); 74 MutexLockerEx ml(sync, Mutex::_no_safepoint_check_flag);
75 if (*addr == compare_value) { 75 if (*addr == compare_value) {
76 *addr = callback; 76 *addr = callback;
77 return compare_value; 77 return compare_value;
78 } else { 78 } else {
79 return callback; 79 return callback;
80 } 80 }
81 } 81 }
82 } 82 }
83 83
84 // used in signal handler 84 // used in signal handler
85 static intptr_t exchange_current_callback(intptr_t callback, intptr_t *addr, Mutex *sync) { 85 static intptr_t exchange_current_callback(intptr_t callback, intptr_t *addr, Mutex *sync) {
86 if (VM_Version::supports_compare_and_exchange()) { 86 if (VM_Version::supports_compare_and_exchange()) {
87 return Atomic::xchg_ptr(callback, addr); 87 return Atomic::xchg_ptr(callback, addr);
88 } else { 88 } else {
89 MutexLockerEx(sync, Mutex::_no_safepoint_check_flag); 89 MutexLockerEx ml(sync, Mutex::_no_safepoint_check_flag);
90 intptr_t cb = *addr; 90 intptr_t cb = *addr;
91 *addr = callback; 91 *addr = callback;
92 return cb; 92 return cb;
93 } 93 }
94 } 94 }