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46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2013, 2014.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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unistd/sysconf.cpp
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Get configuration information at runtime.
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*******************************************************************************/
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#include <errno.h>
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#include <stdio.h>
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#include <signal.h>
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#include <unistd.h>
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extern "C" long sysconf(int name)
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{
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switch ( name )
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{
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case _SC_CLK_TCK: return 1000;
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case _SC_PAGESIZE: case _SC_PAGE_SIZE:
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return getpagesize();
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case _SC_OPEN_MAX: return 0x10000;
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case _SC_RTSIG_MAX: return (SIGRTMAX+1) - SIGRTMIN;
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case _SC_GETGR_R_SIZE_MAX: return -1;
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case _SC_GETPW_R_SIZE_MAX: return -1;
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default:
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fprintf(stderr, "%s:%u warning: %s(%i) is unsupported\n",
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__FILE__, __LINE__, __func__, name);
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return errno = EINVAL, -1;
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}
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}
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