84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
// proclimits.h must be included in .cpp file
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// only after #if[n]def _RWSTD_NO_SETRLIMIT line
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/***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the License); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 1999-2007 Rogue Wave Software, Inc.
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*
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**************************************************************************/
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#if !defined (_RWSTD_NO_SETRLIMIT)
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#include <stddef.h>
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#include <sys/resource.h> // for setrlimit()
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void limit_memory (size_t limit)
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{
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struct rlimit rl = { limit, limit };
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setrlimit (RLIMIT_DATA, &rl);
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}
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#elif defined (_WIN32)
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# ifndef _WIN32_WINNT
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# define _WIN32_WINNT 0x0500
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# endif
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# if _WIN32_WINNT >= 0x0500
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// Job Objects available only in Windows 2000 and later
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# include <windows.h>
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void limit_memory (size_t limit)
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{
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if (sizeof(size_t) < 8)
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return;
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SYSTEM_INFO info;
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GetSystemInfo (&info);
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HANDLE hJob = CreateJobObject (NULL, NULL);
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if (hJob) {
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if (AssignProcessToJobObject (hJob, GetCurrentProcess ())) {
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JOBOBJECT_EXTENDED_LIMIT_INFORMATION job_info = { 0 };
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job_info.BasicLimitInformation.LimitFlags =
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JOB_OBJECT_LIMIT_PROCESS_MEMORY;
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job_info.ProcessMemoryLimit =
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limit > info.dwPageSize ? limit : info.dwPageSize;
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SetInformationJobObject (hJob,
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JobObjectExtendedLimitInformation,
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&job_info, sizeof (job_info));
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}
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CloseHandle (hJob);
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}
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}
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# else // _WIN32_WINNT < 0x0500
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void limit_memory (size_t) { /* no-op */ }
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# endif // _WIN32_WINNT
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#else // _RWSTD_NO_SETRLIMIT && !_WIN32
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void limit_memory (size_t) { /* no-op */ }
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#endif // _RWSTD_NO_SETRLIMIT
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