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XrdSysPlatform.cc
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/******************************************************************************/
/* */
/* X r d S y s P l a t f o r m . c c */
/* */
/* (c) 2006 by the Board of Trustees of the Leland Stanford, Jr., University */
/* Produced by Andrew Hanushevsky for Stanford University under contract */
/* DE-AC02-76-SFO0515 with the Department of Energy */
/* */
/* This file is part of the XRootD software suite. */
/* */
/* XRootD is free software: you can redistribute it and/or modify it under */
/* the terms of the GNU Lesser General Public License as published by the */
/* Free Software Foundation, either version 3 of the License, or (at your */
/* option) any later version. */
/* */
/* XRootD is distributed in the hope that it will be useful, but WITHOUT */
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
/* License for more details. */
/* */
/* You should have received a copy of the GNU Lesser General Public License */
/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
/* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
/* */
/* The copyright holder's institutional names and contributor's names may not */
/* be used to endorse or promote products derived from this software without */
/* specific prior written permission of the institution or contributor. */
/******************************************************************************/
#include <climits>
#include <cstdio>
#include <cstring>
#ifndef WIN32
#include <unistd.h>
#include <netinet/in.h>
#endif
#include <sys/types.h>
#if defined(_LITTLE_ENDIAN) || defined(__LITTLE_ENDIAN__) || \
defined(__IEEE_LITTLE_ENDIAN) || \
(defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN)
#if !defined(__GNUC__) || defined(__APPLE__)
extern "C"
{
unsigned long long Swap_n2hll(unsigned long long x)
{
unsigned long long ret_val;
*( (unsigned int *)(&ret_val) + 1) = ntohl(*( (unsigned int *)(&x)));
*(((unsigned int *)(&ret_val))) = ntohl(*(((unsigned int *)(&x))+1));
return ret_val;
}
}
#endif
#endif
#ifndef HAVE_STRLCPY
extern "C"
{
size_t strlcpy(char *dst, const char *src, size_t sz)
{
size_t slen = strlen(src);
size_t tlen =sz-1;
if (slen <= tlen) strcpy(dst, src);
else if (tlen > 0) {strncpy(dst, src, tlen); dst[tlen] = '\0';}
else if (tlen == 0) dst[0] = '\0';
return slen;
}
}
#endif
namespace XrdSys {
int getIovMax()
{
#ifndef IOV_MAX
#ifdef _SC_IOV_MAX
static int IOV_MAX = []() {
int sc_iov_max = sysconf(_SC_IOV_MAX);
return sc_iov_max > 0 ? sc_iov_max : 1024;
}();
#else
#define IOV_MAX 1024
#endif
#endif
return IOV_MAX;
}
}
IOV_MAX
#define IOV_MAX
strlcpy
size_t strlcpy(char *dst, const char *src, size_t sz)
Definition XrdSysPlatform.cc:60
XrdSys
Definition XrdClPollerBuiltIn.hh:28
XrdSys::getIovMax
int getIovMax()
Definition XrdSysPlatform.cc:77