Class: PThread::Mutex

Inherits:
Object
  • Object
show all
Includes:
PThread, Helper
Defined in:
lib/scratch.rb

Constant Summary

Constants included from Helper

Helper::MAP_FAILED, Helper::MAP_PRIVATE, Helper::MAP_SHARED, Helper::O_CREAT, Helper::O_RDWR, Helper::PROT_EXEC, Helper::PROT_NONE, Helper::PROT_READ, Helper::PROT_WRITE, Helper::PTHREAD_PROCESS_SHARED

Class Method Summary collapse

Instance Method Summary collapse

Methods included from PThread

call, test

Constructor Details

#initialize(mutex = Mutex.alloc, attr = nil) ⇒ Mutex

Returns a new instance of Mutex.



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# File 'lib/scratch.rb', line 183

def initialize(mutex = Mutex.alloc, attr = nil)
  @mutex = mutex
  PThread.call { pthread_mutex_init(@mutex, attr) }
end

Class Method Details

.alloc ⇒ Object 



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# File 'lib/scratch.rb', line 178

def alloc
  FFI::MemoryPointer.new(Helper.sizeof_pthread_mutex_t)
end

Instance Method Details

#destroy ⇒ Object 



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# File 'lib/scratch.rb', line 188

def destroy
  PThread.call { pthread_mutex_destroy(@mutex) }
end

#lock ⇒ Object 



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# File 'lib/scratch.rb', line 192

def lock
  PThread.call { pthread_mutex_lock(@mutex) }
end

#try_lock ⇒ Object 



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# File 'lib/scratch.rb', line 196

def try_lock
  PThread.call { pthread_mutex_trylock(@mutex) }
end

#unlock ⇒ Object 



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# File 'lib/scratch.rb', line 200

def unlock
  PThread.call { pthread_mutex_unlock(@mutex) }
end