/usr/include/ace/Mutex.inl is in libace-dev 6.3.3+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | // -*- C++ -*-
#include "ace/OS_NS_sys_mman.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
ACE_INLINE int
ACE_Mutex::acquire_read (void)
{
// ACE_TRACE ("ACE_Mutex::acquire_read");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_lock (this->process_lock_);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return ACE_OS::mutex_lock (&this->lock_);
}
ACE_INLINE int
ACE_Mutex::acquire_write (void)
{
// ACE_TRACE ("ACE_Mutex::acquire_write");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_lock (this->process_lock_);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return ACE_OS::mutex_lock (&this->lock_);
}
ACE_INLINE int
ACE_Mutex::tryacquire_read (void)
{
// ACE_TRACE ("ACE_Mutex::tryacquire_read");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_trylock (this->process_lock_);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return ACE_OS::mutex_trylock (&this->lock_);
}
ACE_INLINE const ACE_mutex_t &
ACE_Mutex::lock (void) const
{
// ACE_TRACE ("ACE_Mutex::lock");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return *this->process_lock_;
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return this->lock_;
}
ACE_INLINE ACE_mutex_t &
ACE_Mutex::lock (void)
{
// ACE_TRACE ("ACE_Mutex::lock");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return *this->process_lock_;
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return this->lock_;
}
ACE_INLINE int
ACE_Mutex::tryacquire_write (void)
{
// ACE_TRACE ("ACE_Mutex::tryacquire_write");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_trylock (this->process_lock_);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return ACE_OS::mutex_trylock (&this->lock_);
}
ACE_INLINE int
ACE_Mutex::tryacquire_write_upgrade (void)
{
// ACE_TRACE ("ACE_Mutex::tryacquire_write_upgrade");
return 0;
}
ACE_INLINE int
ACE_Mutex::acquire (void)
{
// ACE_TRACE ("ACE_Mutex::acquire");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_lock (this->process_lock_);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return ACE_OS::mutex_lock (&this->lock_);
}
ACE_INLINE int
ACE_Mutex::acquire (ACE_Time_Value &tv)
{
// ACE_TRACE ("ACE_Mutex::acquire");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_lock (this->process_lock_, tv);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS*/
return ACE_OS::mutex_lock (&this->lock_, tv);
}
ACE_INLINE int
ACE_Mutex::acquire (ACE_Time_Value *tv)
{
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_lock (this->process_lock_, tv);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS*/
return ACE_OS::mutex_lock (&this->lock_, tv);
}
ACE_INLINE int
ACE_Mutex::tryacquire (void)
{
// ACE_TRACE ("ACE_Mutex::tryacquire");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_trylock (this->process_lock_);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return ACE_OS::mutex_trylock (&this->lock_);
}
ACE_INLINE int
ACE_Mutex::release (void)
{
// ACE_TRACE ("ACE_Mutex::release");
#if defined (ACE_HAS_PTHREADS) || defined(ACE_HAS_STHREADS)
if (this->process_lock_)
return ACE_OS::mutex_unlock (this->process_lock_);
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return ACE_OS::mutex_unlock (&this->lock_);
}
ACE_INLINE int
ACE_Mutex::remove (void)
{
// ACE_TRACE ("ACE_Mutex::remove");
int result = 0;
#if defined (ACE_HAS_PTHREADS) || defined (ACE_HAS_STHREADS)
// In the case of a interprocess mutex, the owner is the first
// process that created the shared memory object. In this case, the
// lockname_ pointer will be non-zero (points to allocated memory
// for the name). Owner or not, the memory needs to be unmapped
// from the process. If we are the owner, the file used for
// shm_open needs to be deleted as well.
if (this->process_lock_)
{
if (this->removed_ == false)
{
this->removed_ = true;
// Only destroy the lock if we're the ones who initialized
// it.
if (!this->lockname_)
ACE_OS::munmap ((void *) this->process_lock_,
sizeof (ACE_mutex_t));
else
{
result = ACE_OS::mutex_destroy (this->process_lock_);
ACE_OS::munmap ((void *) this->process_lock_,
sizeof (ACE_mutex_t));
ACE_OS::shm_unlink (this->lockname_);
ACE_OS::free (
static_cast<void *> (
const_cast<ACE_TCHAR *> (this->lockname_)));
}
}
}
else
{
#else /* !ACE_HAS_PTHREADS && !ACE_HAS_STHREADS */
if (this->removed_ == false)
{
this->removed_ = true;
result = ACE_OS::mutex_destroy (&this->lock_);
}
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
#if defined (ACE_HAS_PTHREADS) || defined (ACE_HAS_STHREADS)
}
#endif /* ACE_HAS_PTHREADS || ACE_HAS_STHREADS */
return result;
}
ACE_END_VERSIONED_NAMESPACE_DECL
|