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src/hotspot/os/posix/semaphore_posix.hpp

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rev 57095 : [mq]: use
rev 57096 : [mq]: trailing_semi


   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef OS_POSIX_SEMAPHORE_POSIX_HPP
  26 #define OS_POSIX_SEMAPHORE_POSIX_HPP
  27 
  28 #include "memory/allocation.hpp"

  29 
  30 #include <semaphore.h>
  31 
  32 class PosixSemaphore : public CHeapObj<mtInternal> {
  33   sem_t _semaphore;
  34 
  35   // Prevent copying and assignment.
  36   PosixSemaphore(const PosixSemaphore&);
  37   PosixSemaphore& operator=(const PosixSemaphore&);
  38 
  39  public:
  40   PosixSemaphore(uint value = 0);
  41   ~PosixSemaphore();
  42 
  43   void signal(uint count = 1);
  44 
  45   void wait();
  46 
  47   bool trywait();
  48   // wait until the given absolute time is reached
  49   bool timedwait(struct timespec ts);
  50   // wait until the given relative time elapses
  51   bool timedwait(int64_t millis);
  52 };
  53 
  54 typedef PosixSemaphore SemaphoreImpl;
  55 
  56 #endif // OS_POSIX_SEMAPHORE_POSIX_HPP


   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef OS_POSIX_SEMAPHORE_POSIX_HPP
  26 #define OS_POSIX_SEMAPHORE_POSIX_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "utilities/macros.hpp"
  30 
  31 #include <semaphore.h>
  32 
  33 class PosixSemaphore : public CHeapObj<mtInternal> {
  34   sem_t _semaphore;
  35 
  36   NONCOPYABLE(PosixSemaphore);


  37 
  38  public:
  39   PosixSemaphore(uint value = 0);
  40   ~PosixSemaphore();
  41 
  42   void signal(uint count = 1);
  43 
  44   void wait();
  45 
  46   bool trywait();
  47   // wait until the given absolute time is reached
  48   bool timedwait(struct timespec ts);
  49   // wait until the given relative time elapses
  50   bool timedwait(int64_t millis);
  51 };
  52 
  53 typedef PosixSemaphore SemaphoreImpl;
  54 
  55 #endif // OS_POSIX_SEMAPHORE_POSIX_HPP
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