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Master commit of OpenFace.
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67
lib/3rdParty/dlib/include/dlib/sync_extension/sync_extension_kernel_1.h
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67
lib/3rdParty/dlib/include/dlib/sync_extension/sync_extension_kernel_1.h
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// Copyright (C) 2003 Davis E. King (davis@dlib.net)
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// License: Boost Software License See LICENSE.txt for the full license.
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#ifndef DLIB_SYNC_EXTENSION_KERNEl_1_
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#define DLIB_SYNC_EXTENSION_KERNEl_1_
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#include "../threads.h"
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#include "../algs.h"
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#include "sync_extension_kernel_abstract.h"
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namespace dlib
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{
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template <
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typename base
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>
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class sync_extension_kernel_1 : public base
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{
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rmutex m;
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rsignaler s;
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public:
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sync_extension_kernel_1 () : s(m) {}
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template < typename T >
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sync_extension_kernel_1 (const T& one) : base(one),s(m) {}
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template < typename T, typename U >
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sync_extension_kernel_1 (const T& one, const U& two) : base(one,two),s(m) {}
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const rmutex& get_mutex(
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) const { return m; }
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void lock (
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) const { m.lock(); }
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void unlock (
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) const { m.unlock(); }
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void wait (
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) const { s.wait(); }
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bool wait_or_timeout (
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unsigned long milliseconds
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) const { return s.wait_or_timeout(milliseconds); }
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void broadcast (
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) const { s.broadcast(); }
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void signal (
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) const { s.signal(); }
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};
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template <
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typename base
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>
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inline void swap (
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sync_extension_kernel_1<base>& a,
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sync_extension_kernel_1<base>& b
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) { a.swap(b); }
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}
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#endif // DLIB_SYNC_EXTENSION_KERNEl_1_
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190
lib/3rdParty/dlib/include/dlib/sync_extension/sync_extension_kernel_abstract.h
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190
lib/3rdParty/dlib/include/dlib/sync_extension/sync_extension_kernel_abstract.h
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// Copyright (C) 2003 Davis E. King (davis@dlib.net)
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// License: Boost Software License See LICENSE.txt for the full license.
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#undef DLIB_SYNC_EXTENSION_KERNEl_ABSTRACT_
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#ifdef DLIB_SYNC_EXTENSION_KERNEl_ABSTRACT_
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#include "../threads/threads_kernel_abstract.h"
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#include "../threads/rmutex_extension_abstract.h"
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#include "../threads/rsignaler_extension_abstract.h"
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#include "../algs.h"
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namespace dlib
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{
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template <
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typename base
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>
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class sync_extension : public base
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{
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/*!
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REQUIREMENTS ON base
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base must have a default constructor
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base must implement swap(base&)
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WHAT THIS OBJECT REPRESENTS
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This object represents a general extension to any object (given the
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restrictions on base). This object gives any object which it extends
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an integrated rmutex and rsignaler object. The extended object will
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then be able to be treated as if it was also a rmutex and rsignaler.
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NOTE that just like the threading api, this object does not check
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its requires clauses so be careful with it.
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Also note that swap() does not swap the rmutex and rsignaler objects.
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the rmutex and rsignaler are associated with the object instance itself,
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not with whatever the object represents.
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!*/
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public:
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sync_extension (
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);
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/*!
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ensures
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- #*this is properly initialized
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throws
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- std::bad_alloc
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this is thrown if there is a problem gathering memory
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- dlib::thread_error
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this is thrown if there is a problem creating threading objects
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- any exception thrown by the constructor for the parent class base
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!*/
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template <
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typename T
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>
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sync_extension (
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const T& one
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);
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/*!
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ensures
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- #*this is properly initialized
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- the argument one will be passed on to the constructor for the parent
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class base.
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throws
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- std::bad_alloc
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this is thrown if there is a problem gathering memory
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- dlib::thread_error
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this is thrown if there is a problem creating threading objects
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- any exception thrown by the constructor for the parent class base
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!*/
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template <
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typename T,
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typename U
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>
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sync_extension (
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const T& one,
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const T& two
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);
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/*!
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ensures
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- #*this is properly initialized
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- the argument one will be passed on to the constructor for the parent
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class base as its first argument.
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- the argument two will be passed on to the constructor for the parent
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class base as its second argument.
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throws
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- std::bad_alloc
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this is thrown if there is a problem gathering memory
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- dlib::thread_error
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this is thrown if there is a problem creating threading objects
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- any exception thrown by the constructor for the parent class base
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!*/
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const rmutex& get_mutex (
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) const;
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/*!
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ensures
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- returns the rmutex embedded in this object
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!*/
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void lock (
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) const;
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/*!
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requires
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- the thread calling lock() does not already have a lock on *this
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ensures
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- if (*this is currently locked by another thread) then
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- the thread that called lock() on *this is put to sleep until
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it becomes available
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- if (*this is currently unlocked) then
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- #*this becomes locked and the current thread is NOT put to sleep
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but now "owns" #*this
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!*/
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void unlock (
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) const;
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/*!
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ensures
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- #*this is unlocked (i.e. other threads may now lock this object)
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!*/
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void wait (
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) const;
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/*!
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requires
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- *this is locked and owned by the calling thread
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ensures
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- atomically unlocks *this and blocks the calling thread
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- calling thread will wake if another thread calls signal() or broadcast()
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on *this
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- when wait returns the calling thread again has a lock on #*this
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!*/
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bool wait_or_timeout (
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unsigned long milliseconds
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) const;
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/*!
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requires
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- *this is locked and owned by the calling thread
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ensures
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- atomically unlocks *this and blocks the calling thread
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- calling thread will wake if another thread calls signal() or broadcast()
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on *this
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- after the specified number of milliseconds has elapsed the calling thread
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will wake once *this is free to be locked
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- when wait returns the calling thread again has a lock on #*this
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- returns false if the call to wait_or_timeout timed out
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- returns true if the call did not time out
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!*/
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void signal (
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) const;
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/*!
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ensures
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- if (at least one thread is waiting on *this) then
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- at least one of the waiting threads will wake
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!*/
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void broadcast (
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) const;
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/*!
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ensures
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- any and all threads waiting on *this will wake
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!*/
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};
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template <
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typename base
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>
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inline void swap (
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sync_extension<base>& a,
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sync_extension<base>& b
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) { a.swap(b); }
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/*!
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provides a global swap function
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!*/
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}
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#endif // DLIB_SYNC_EXTENSION_KERNEl_ABSTRACT_
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