Program: gdcm
Module: $RCSfile: gdcmUtil.cxx,v $
Language: C++
- Date: $Date: 2005/01/18 15:46:49 $
- Version: $Revision: 1.111 $
+ Date: $Date: 2005/01/21 19:51:12 $
+ Version: $Revision: 1.115 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
#include <sys/types.h>
#include <sys/stat.h>
+#ifdef _MSC_VER
+#include <sys/timeb.h>
+#else
+#include <sys/time.h>
+#endif
+
#include <stdarg.h> //only included in implementation file
#include <stdio.h> //only included in implementation file
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) || defined(__MINGW32__)
#include <winsock.h> // for gethostname & gethostbyname
#undef GetCurrentTime
#else
#include <net/if_dl.h>
#endif
#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
- // This is absolutely necesseray on SunOS
+ // This is absolutely necessary on SunOS
#include <net/if_arp.h>
#endif
+// For GetCurrentThreadID()
+#ifdef __linux__
+#include <sys/types.h>
+#include <linux/unistd.h>
+#endif
+#ifdef __sun
+#include <thread.h>
+#endif
+
namespace gdcm
{
/**
return tmp;
}
+/**
+ * \brief Get both the date and time at the same time to avoid problem
+ * around midnight where two call could be before and after midnight
+ */
+std::string Util::GetCurrentDateTime()
+{
+ char tmp[40];
+ long milliseconds;
+ time_t *timep;
+
+ // We need implementation specific functions to obtain millisecond precision
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ struct timeb tb;
+ ::ftime(&tb);
+ timep = &tb.time;
+ milliseconds = tb.millitm;
+#else
+ struct timeval tv;
+ gettimeofday (&tv, NULL);
+ timep = &tv.tv_sec;
+ // Compute milliseconds from microseconds.
+ milliseconds = tv.tv_usec / 1000;
+#endif
+ // Obtain the time of day, and convert it to a tm struct.
+ struct tm *ptm = localtime (timep);
+ // Format the date and time, down to a single second.
+ strftime (tmp, sizeof (tmp), "%Y%m%d.%H%M%S", ptm);
+
+ // Add milliseconds
+ std::string r = tmp;
+ r += Format("%03ld", milliseconds);
+
+ return r;
+}
+
/**
* \brief Create a /DICOM/ string:
* It should a of even length (no odd length ever)
// 3 OS: Win32, SunOS and 'real' POSIX
// http://groups-beta.google.com/group/comp.unix.solaris/msg/ad36929d783d63be
// http://bdn.borland.com/article/0,1410,26040,00.html
- unsigned char addr[6];
- std::string macaddr;
+ union dual { uint64_t n; unsigned char addr[6]; };
- int stat = GetMacAddrSys(addr);
- if (0 == stat)
+ // zero-initialize the whole thing first:
+ dual d = { 0 };
+ int stat = GetMacAddrSys(d.addr);
+ if (stat == 0)
{
- for (int i=0; i<6; ++i)
- {
- macaddr += Format("%2.2x", addr[i]);
- //if(i) macaddr += ".";
- //macaddr += Format("%i", (int)addr[i]);
- }
- return macaddr;
+ // fill with zero to fit on 15 bytes.
+ return Format("%015llu", d.n);
}
else
{
# define HOST_NAME_MAX 255
// In this case we should maybe check the string was not truncated.
// But I don't known how to check that...
-#if defined(_MSC_VER) || defined(__BORLANDC__)
- // with WinSock DLL we need to initialise the WinSock before using gethostname
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ // with WinSock DLL we need to initialize the WinSock before using gethostname
WORD wVersionRequested = MAKEWORD(1,0);
WSADATA WSAData;
int err = WSAStartup(wVersionRequested,&WSAData);
}
// str now contains one local IP address
-#if defined(_MSC_VER) || defined(__BORLANDC__)
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
WSACleanup();
#endif
* \brief Creates a new UID. As stipulate in the DICOM ref
* each time a DICOM image is create it should have
* a unique identifier (URI)
+ * @param root is the DICOM prefix assigned by IOS group
+ * @param is a string you want to append to the UID.
*/
std::string Util::CreateUniqueUID(const std::string &root)
{
- std::string radical = root;
- if( !root.size() )
+ std::string prefix = root;
+ std::string append;
+ if( root.empty() )
{
// No root was specified use "GDCM" then
// echo "gdcm" | od -b
// 0000000 147 144 143 155 012
- radical = "147.144.143.155"; // special easter egg
+ prefix = "147.144.143.155"; // special easter egg
}
// else
// A root was specified use it to forge our new UID:
- radical += Util::GetMACAddress();
- radical += ".";
- radical += Util::GetCurrentDate();
- radical += ".";
- radical += Util::GetCurrentTime();
+ append += ".";
+ append += Util::GetMACAddress();
+ append += ".";
+ //append += Util::GetCurrentDate();
+ //append += ".";
+ //append += Util::GetCurrentTime();
+ append += Util::GetCurrentDateTime();
+
+ // If append is too long we need to rehash it
+ if( (prefix + append).size() > 64 )
+ {
+ gdcmErrorMacro( "Size of UID is too long." );
+ // we need a hash function to truncate this number
+ // if only md5 was cross plateform
+ // MD5(append);
+ }
+
+ return prefix + append;
+}
+
+unsigned int Util::GetCurrentThreadID()
+{
+// FIXME the implementation is far from complete
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ return (unsigned int)GetCurrentThreadId();
+#endif
+#ifdef __linux__
+ return 0;
+ // Doesn't work on fedora, but is in the man page...
+ //return (unsigned int)gettid();
+#endif
+#ifdef __sun
+ return (unsigned int)thr_self();
+#endif
+}
+
+unsigned int Util::GetCurrentProcessID()
+{
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ // NOTE: There is also a _getpid()...
+ return (unsigned int)GetCurrentProcessId();
+#else
+ // get process identification, POSIX
+ return (unsigned int)getpid();
+#endif
- return radical;
}
/**
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff