| @@ -1,12 +1,15 @@ | |
| 1 | 
             
            procedure main()
         | 
|  | |
| 2 | 
             
              create_thread(thread_a)
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| 3 | 
             
              create_thread(thread_b)
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| 4 | 
             
            end procedure
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| 5 |  | 
| 6 | 
             
            procedure thread_a()
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| 7 | 
             
              statement a1
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|  | |
| 8 | 
             
            end procedure
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| 9 |  | 
| 10 | 
             
            procedure thread_b()
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|  | |
| 11 | 
             
              statement b1
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| 12 | 
             
            end procedure
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| 1 | 
             
            procedure main()
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| 2 | 
            +
              shared a1_ready := create_semaphore(0) // can_run_b1
         | 
| 3 | 
             
              create_thread(thread_a)
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| 4 | 
             
              create_thread(thread_b)
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| 5 | 
             
            end procedure
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| 6 |  | 
| 7 | 
             
            procedure thread_a()
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| 8 | 
             
              statement a1
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| 9 | 
            +
              signal(a1_ready)
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| 10 | 
             
            end procedure
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| 11 |  | 
| 12 | 
             
            procedure thread_b()
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| 13 | 
            +
              wait(a1_ready)
         | 
| 14 | 
             
              statement b1
         | 
| 15 | 
             
            end procedure
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