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comparison src/share/vm/utilities/yieldingWorkgroup.hpp @ 4970:33df1aeaebbf

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Merge with http://hg.openjdk.java.net/hsx/hsx24/hotspot/
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Mon, 27 Feb 2012 13:10:13 +0100
parents 441e946dc1af
children 32164d89fe9c
comparison
equal deleted inserted replaced
4703:2cfb7fb2dce7 4970:33df1aeaebbf
69 FlexibleGangTask(const char* name): AbstractGangTask(name), 69 FlexibleGangTask(const char* name): AbstractGangTask(name),
70 _requested_size(0) {} 70 _requested_size(0) {}
71 71
72 // The abstract work method. 72 // The abstract work method.
73 // The argument tells you which member of the gang you are. 73 // The argument tells you which member of the gang you are.
74 virtual void work(int i) = 0; 74 virtual void work(uint worker_id) = 0;
75 75
76 int requested_size() const { return _requested_size; } 76 int requested_size() const { return _requested_size; }
77 int actual_size() const { return _actual_size; } 77 int actual_size() const { return _actual_size; }
78 78
79 void set_requested_size(int sz) { _requested_size = sz; } 79 void set_requested_size(int sz) { _requested_size = sz; }
126 } 126 }
127 127
128 public: 128 public:
129 // The abstract work method. 129 // The abstract work method.
130 // The argument tells you which member of the gang you are. 130 // The argument tells you which member of the gang you are.
131 virtual void work(int i) = 0; 131 virtual void work(uint worker_id) = 0;
132 132
133 // Subclasses should call the parent's yield() method 133 // Subclasses should call the parent's yield() method
134 // after having done any work specific to the subclass. 134 // after having done any work specific to the subclass.
135 virtual void yield(); 135 virtual void yield();
136 136
157 // being the thread that orchestrates the WorkGang via run_task(). 157 // being the thread that orchestrates the WorkGang via run_task().
158 class YieldingFlexibleWorkGang: public FlexibleWorkGang { 158 class YieldingFlexibleWorkGang: public FlexibleWorkGang {
159 // Here's the public interface to this class. 159 // Here's the public interface to this class.
160 public: 160 public:
161 // Constructor and destructor. 161 // Constructor and destructor.
162 YieldingFlexibleWorkGang(const char* name, int workers, 162 YieldingFlexibleWorkGang(const char* name, uint workers,
163 bool are_GC_task_threads); 163 bool are_GC_task_threads);
164 164
165 YieldingFlexibleGangTask* yielding_task() const { 165 YieldingFlexibleGangTask* yielding_task() const {
166 assert(task() == NULL || task()->is_YieldingFlexibleGang_task(), 166 assert(task() == NULL || task()->is_YieldingFlexibleGang_task(),
167 "Incorrect cast"); 167 "Incorrect cast");
168 return (YieldingFlexibleGangTask*)task(); 168 return (YieldingFlexibleGangTask*)task();
169 } 169 }
170 // Allocate a worker and return a pointer to it. 170 // Allocate a worker and return a pointer to it.
171 GangWorker* allocate_worker(int which); 171 GangWorker* allocate_worker(uint which);
172 172
173 // Run a task; returns when the task is done, or the workers yield, 173 // Run a task; returns when the task is done, or the workers yield,
174 // or the task is aborted, or the work gang is terminated via stop(). 174 // or the task is aborted, or the work gang is terminated via stop().
175 // A task that has been yielded can be continued via this same interface 175 // A task that has been yielded can be continued via this same interface
176 // by using the same task repeatedly as the argument to the call. 176 // by using the same task repeatedly as the argument to the call.
197 // stations, whence they are ready for the next task dispatched 197 // stations, whence they are ready for the next task dispatched
198 // by the overseer. 198 // by the overseer.
199 void abort(); 199 void abort();
200 200
201 private: 201 private:
202 int _yielded_workers; 202 uint _yielded_workers;
203 void wait_for_gang(); 203 void wait_for_gang();
204 204
205 public: 205 public:
206 // Accessors for fields 206 // Accessors for fields
207 int yielded_workers() const { 207 uint yielded_workers() const {
208 return _yielded_workers; 208 return _yielded_workers;
209 } 209 }
210 210
211 private: 211 private:
212 friend class YieldingFlexibleGangWorker; 212 friend class YieldingFlexibleGangWorker;