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/* -*- C++ -*- */
//=============================================================================
/**
* @file TSS_Test_Errno.h
*
* This file contains the definition of Errno. Some compilers need
* it in a .h file for template instantiation (such as AIX C Set
* ++).
*
* @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
*/
//=============================================================================
#include "ace/Guard_T.h"
#include "ace/Thread_Mutex.h"
/**
* @class Errno
*
* @brief Define a simple Errno abstraction
*
* This class gets its own header file to work around AIX C++
* compiler "features" related to template instantiation... It is
* only used by TSS_Test.cpp.
*/
class Errno
{
public:
Errno()
{
ACE_MT (ACE_GUARD (ACE_Thread_Mutex, ace_Mon, *Errno::lock_));
created_ += 1;
}
~Errno()
{
ACE_MT (ACE_GUARD (ACE_Thread_Mutex, ace_Mon, *Errno::lock_));
deleted_ += 1;
}
int error (void) { return this->errno_; }
void error (int i) { this->errno_ = i; }
int line (void) { return this->lineno_; }
void line (int l) { this->lineno_ = l; }
// Errno::flags_ is a static variable, so we've got to protect it
// with a mutex since it isn't kept in thread-specific storage.
int flags (void)
{
ACE_MT (ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_Mon, *Errno::lock_, -1));
return Errno::flags_;
}
int flags (int f)
{
ACE_MT (ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, *Errno::lock_, -1));
Errno::flags_ = f;
return 0;
}
static int created (void)
{
return created_;
}
static int deleted (void)
{
return deleted_;
}
#if defined (ACE_HAS_THREADS)
static
ACE_Thread_Mutex *
allocate_lock (void)
{
ACE_NEW_RETURN (Errno::lock_, ACE_Thread_Mutex, 0);
return Errno::lock_;
}
static
void
deallocate_lock () { delete lock_; lock_ = 0; }
#endif /* ACE_HAS_THREADS */
private:
// = errno_ and lineno_ will be thread-specific data so they don't
// need a lock.
int errno_;
int lineno_;
static int flags_;
static int created_;
static int deleted_;
#if defined (ACE_HAS_THREADS)
// flags_ needs a lock.
static ACE_Thread_Mutex *lock_;
#endif /* ACE_HAS_THREADS */
};
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