• bmeurer@chromium.org's avatar
    Import ConditionVariable class. · 281de965
    bmeurer@chromium.org authored
    Condition variables are synchronization primitives that can be used
    to block one or more threads while waiting for condition to become
    true.
    
    Right now we have only semaphores, mutexes and atomic operations for
    synchronization, which results in quite complex solutions where an
    implementation using condition variables and mutexes would be straight
    forward.
    
    There's also a performance benefit to condition variables and mutexes
    vs semaphores, especially on Windows, where semaphores are kernel
    objects, while mutexes are implemented as fast critical sections,
    it CAN be beneficial performance-wise to use condition variables
    instead of semaphores.
    
    R=mstarzinger@chromium.org
    
    Review URL: https://codereview.chromium.org/23548007
    
    git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16492 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
    281de965
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