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 SHARE_RUNTIME_SEMAPHORE_HPP
26 #define SHARE_RUNTIME_SEMAPHORE_HPP
27
28 #include "memory/allocation.hpp"
29
30 #if defined(LINUX) || defined(SOLARIS) || defined(AIX)
31 # include "semaphore_posix.hpp"
32 #elif defined(BSD)
33 # include "semaphore_bsd.hpp"
34 #elif defined(_WINDOWS)
35 # include "semaphore_windows.hpp"
36 #else
37 # error "No semaphore implementation provided for this OS"
38 #endif
39
40 class JavaThread;
41
42 // Implements the limited, platform independent Semaphore API.
43 class Semaphore : public CHeapObj<mtSynchronizer> {
44 SemaphoreImpl _impl;
45
46 // Prevent copying and assignment of Semaphore instances.
47 Semaphore(const Semaphore&);
48 Semaphore& operator=(const Semaphore&);
49
50 public:
51 Semaphore(uint value = 0) : _impl(value) {}
52 ~Semaphore() {}
53
54 void signal(uint count = 1) { _impl.signal(count); }
55
56 void wait() { _impl.wait(); }
57
58 bool trywait() { return _impl.trywait(); }
59
60 void wait_with_safepoint_check(JavaThread* thread);
61 };
62
63 #endif // SHARE_RUNTIME_SEMAPHORE_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 SHARE_RUNTIME_SEMAPHORE_HPP
26 #define SHARE_RUNTIME_SEMAPHORE_HPP
27
28 #include "memory/allocation.hpp"
29 #include "utilities/macros.hpp"
30
31 #if defined(LINUX) || defined(SOLARIS) || defined(AIX)
32 # include "semaphore_posix.hpp"
33 #elif defined(BSD)
34 # include "semaphore_bsd.hpp"
35 #elif defined(_WINDOWS)
36 # include "semaphore_windows.hpp"
37 #else
38 # error "No semaphore implementation provided for this OS"
39 #endif
40
41 class JavaThread;
42
43 // Implements the limited, platform independent Semaphore API.
44 class Semaphore : public CHeapObj<mtSynchronizer> {
45 SemaphoreImpl _impl;
46
47 NONCOPYABLE(Semaphore);
48
49 public:
50 Semaphore(uint value = 0) : _impl(value) {}
51 ~Semaphore() {}
52
53 void signal(uint count = 1) { _impl.signal(count); }
54
55 void wait() { _impl.wait(); }
56
57 bool trywait() { return _impl.trywait(); }
58
59 void wait_with_safepoint_check(JavaThread* thread);
60 };
61
62 #endif // SHARE_RUNTIME_SEMAPHORE_HPP
|