log4cpp  1.1
OmniThreads.hh
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1 /*
2  * OmniThreads.hh
3  *
4  * Copyright 2002, LifeLine Networks BV (www.lifeline.nl). All rights reserved.
5  * Copyright 2002, Bastiaan Bakker. All rights reserved.
6  *
7  * See the COPYING file for the terms of usage and distribution.
8  */
9 
10 #ifndef _LOG4CPP_THREADING_OMNITHREADS_HH
11 #define _LOG4CPP_THREADING_OMNITHREADS_HH
12 
13 #include <log4cpp/Portability.hh>
14 #include <omnithread.h>
15 #include <stdio.h>
16 #include <string>
17 
18 namespace log4cpp {
19  namespace threading {
25  std::string getThreadId();
26 
31  typedef omni_mutex Mutex;
32 
38  typedef omni_mutex_lock ScopedLock;
39 
48  template<typename T> class ThreadLocalDataHolder {
49  public:
50  typedef T data_type;
51 
53  _key(omni_thread::allocate_key()) {};
54 
56 
62  inline T* get() const {
63  Holder* holder = dynamic_cast<Holder*>(
64  ::omni_thread::self()->get_value(_key));
65  return (holder) ? holder->data : NULL;
66  };
67 
74  inline T* operator->() const { return get(); };
75 
81  inline T& operator*() const { return *get(); };
82 
89  inline T* release() {
90  T* result = NULL;
91  Holder* holder = dynamic_cast<Holder*>(
92  ::omni_thread::self()->get_value(_key));
93 
94  if (holder) {
95  result = holder->data;
96  holder->data = NULL;
97  }
98 
99  return result;
100  };
101 
108  inline void reset(T* p = NULL) {
109  Holder* holder = dynamic_cast<Holder*>(
110  ::omni_thread::self()->get_value(_key));
111  if (holder) {
112  if (holder->data)
113  delete holder->data;
114 
115  holder->data = p;
116  } else {
117  holder = new Holder(p);
118  ::omni_thread::self()->set_value(_key, holder);
119  }
120  };
121 
122  private:
123  class Holder : public omni_thread::value_t {
124  public:
125  Holder(data_type* data) : data(data) {};
126  virtual ~Holder() { if (data) delete (data); };
127  data_type* data;
128  private:
129  Holder(const Holder& other);
130  Holder& operator=(const Holder& other);
131  };
132 
133  omni_thread::key_t _key;
134  };
135  }
136 }
137 #endif
~ThreadLocalDataHolder()
Definition: OmniThreads.hh:55
T data_type
Definition: OmniThreads.hh:50
ThreadLocalDataHolder()
Definition: OmniThreads.hh:52
T * release()
Releases the Object held for the current thread.
Definition: OmniThreads.hh:89
The top level namespace for all &#39;Log for C++&#39; types and classes.
Definition: AbortAppender.hh:16
boost::mutex Mutex
Dummy type &#39;int&#39; for Mutex.
Definition: BoostThreads.hh:27
void reset(T *p=NULL)
Sets a new Object to be held for the current thread.
Definition: OmniThreads.hh:108
T * operator->() const
Obtains the Object held for the current thread.
Definition: OmniThreads.hh:74
static std::string getThreadId()
Return an identifier for the current thread.
Definition: BoostThreads.hh:22
boost::mutex::scoped_lock ScopedLock
Dummy type &#39;int&#39; defintion of ScopedLock;.
Definition: BoostThreads.hh:30
T & operator*() const
Obtains the Object held for the current thread.
Definition: OmniThreads.hh:81