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// $Id$
#include "ace/Process_Semaphore.h"
#include "ace/Log_Msg.h"
#include "ace/OS_Memory.h"
#if !defined (__ACE_INLINE__)
#include "ace/Process_Semaphore.inl"
#endif /* __ACE_INLINE__ */
#include "ace/ACE.h"
ACE_RCSID(ace, Process_Semaphore, "$Id$")
void
ACE_Process_Semaphore::dump (void) const
{
#if defined (ACE_HAS_DUMP)
// ACE_TRACE ("ACE_Process_Semaphore::dump");
ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
this->lock_.dump ();
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
#endif /* ACE_HAS_DUMP */
}
ACE_Process_Semaphore::ACE_Process_Semaphore (u_int count,
const ACE_TCHAR *name,
void *arg,
int max)
#if defined (ACE_WIN32) || defined (ACE_HAS_POSIX_SEM) || defined (ACE_PSOS)
: lock_ (count, USYNC_PROCESS, name, arg, max)
#else
: lock_ (name, ACE_SV_Semaphore_Complex::ACE_CREATE, count)
#endif /* ACE_WIN32 || ACE_HAS_POSIX_SEM || ACE_PSOS */
{
arg = arg;
max = max;
// ACE_TRACE ("ACE_Process_Semaphore::ACE_Process_Semaphore");
}
ACE_Process_Semaphore::~ACE_Process_Semaphore (void)
{
// ACE_TRACE ("ACE_Process_Semaphore::~ACE_Process_Semaphore");
}
// Explicitly destroy the semaphore.
int
ACE_Process_Semaphore::remove (void)
{
// ACE_TRACE ("ACE_Process_Semaphore::remove");
return this->lock_.remove ();
}
// Block the thread until the semaphore count becomes
// greater than 0, then decrement it.
int
ACE_Process_Semaphore::acquire (void)
{
// ACE_TRACE ("ACE_Process_Semaphore::acquire");
#if defined (ACE_WIN32) || defined (ACE_HAS_POSIX_SEM) || defined (ACE_PSOS)
return this->lock_.acquire ();
#else
return this->lock_.acquire (0, SEM_UNDO);
#endif // defined (ACE_WIN32) || defined (ACE_HAS_POSIX_SEM) || defined (ACE_PSOS)
}
// Conditionally decrement the semaphore if count is greater
// than 0 (i.e., won't block).
int
ACE_Process_Semaphore::tryacquire (void)
{
// ACE_TRACE ("ACE_Process_Semaphore::tryacquire");
#if defined (ACE_WIN32) || defined (ACE_HAS_POSIX_SEM) || defined (ACE_PSOS)
return this->lock_.tryacquire ();
#else
return this->lock_.tryacquire (0, SEM_UNDO);
#endif // defined (ACE_WIN32) || defined (ACE_HAS_POSIX_SEM) || defined (ACE_PSOS)
}
// Increment the semaphore, potentially unblocking
// a waiting thread.
int
ACE_Process_Semaphore::release (void)
{
// ACE_TRACE ("ACE_Process_Semaphore::release");
#if defined (ACE_WIN32) || defined (ACE_HAS_POSIX_SEM) || defined (ACE_PSOS)
return this->lock_.release ();
#else
return this->lock_.release (0, SEM_UNDO);
#endif // defined (ACE_WIN32) || defined (ACE_HAS_POSIX_SEM) || defined (ACE_PSOS)
}
/*****************************************************************************/
ACE_Process_Semaphore *
ACE_Malloc_Lock_Adapter_T<ACE_Process_Semaphore>::operator () (const ACE_TCHAR *name)
{
ACE_Process_Semaphore *p = 0;
if (name == 0)
ACE_NEW_RETURN (p, ACE_Process_Semaphore (1, name), 0);
else
ACE_NEW_RETURN (p, ACE_Process_Semaphore (1, ACE::basename (name,
ACE_DIRECTORY_SEPARATOR_CHAR)),
0);
return p;
}
//
// These are instantiated both with and without ACE_HAS_THREADS.
//
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
// template class ACE_Guard<ACE_Process_Semaphore>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
// #pragma instantiate ACE_Guard<ACE_Process_Semaphore>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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