The way I use mutex is to protect one shared resource. Here is sample
code that I cooked up. I am not sure why you want to use a single mutex
to protect multiple resources. However, if your use case demands it than
wrap those resources in a class and have a mutex as a member variable of
that class.
HTH.
Call this file let say ThreadSafeQueue.hpp
#include
#include <iostream>
#include <queue>
#include <deque>
namespace std {
namespace threadsafe {
template
class tsqueue {
private:
std::queue m_queue;
boost::mutex mutex;
public:
tsqueue() {
}
~tsqueue() {
}
void push(const T& x) {
boost::lock_guardboost::mutex lock(mutex);
m_queue.push(x);
std::cout << "Push element: " << x << std::endl;
}
const T& front() {
boost::lock_guardboost::mutex lock(mutex);
std::cout << "Pop element: " << m_queue.front() <<
std::endl;
return m_queue.front();
}
void pop() {
boost::lock_guardboost::mutex lock(mutex);
return m_queue.pop();
}
int size() {
boost::lock_guardboost::mutex lock(mutex);
return m_queue.size();
}
};
} // namespace threadsafe
} // namespace std
Here is how you can use it.
#include "ThreadSafeQueue.hpp"
int main() {
std::threadsafe::tsqueue<int> tsf;
tsf.push(1);
tsf.front();
return 0;
}
g++ -Wall -DBOOST_HAS_THREADS <relevant includes> <relevant library
path> test.cpp -lboost_thread-gcc32-mt
-----Original Message-----
From: boost-users-bounces@lists.boost.org
[mailto:boost-users-bounces@lists.boost.org] On Behalf Of Anthony
Williams
Sent: Friday, July 11, 2008 6:34 AM
To: boost-users@lists.boost.org
Subject: Re: [Boost-users] [Thread] What do I #include?
Adam Nielsen writes:
This may seem like a silly question, but is someone able to point me
to where in the Boost docs it tells me which files I need to
#include to use Boost Threads?
It doesn't. Oops. I'll raise a trac issue for it.
Ah, glad it's not me being dumb for once :-)
You can include to get everything.
Does this include shared_mutex? I was still getting errors about
boost::shared_mutex when I included , which prompted
my hunt through the docs in the first place!
It does in the trunk version, but not in 1.35.0
shared_mutex is in
Anthony
--
Anthony Williams | Just Software Solutions Ltd
Custom Software Development | http://www.justsoftwaresolutions.co.uk
Registered in England, Company Number 5478976.
Registered Office: 15 Carrallack Mews, St Just, Cornwall, TR19 7UL
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