Program: gdcm
Module: $RCSfile: gdcmUtil.cxx,v $
Language: C++
- Date: $Date: 2005/01/21 20:49:37 $
- Version: $Revision: 1.117 $
+ Date: $Date: 2005/01/28 09:37:29 $
+ Version: $Revision: 1.126 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
#include "gdcmUtil.h"
#include "gdcmDebug.h"
#include <iostream>
+#include <algorithm>
// For GetCurrentDate, GetCurrentTime
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
-#ifdef _MSC_VER
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
#include <sys/timeb.h>
#else
#include <sys/time.h>
namespace gdcm
{
+const std::string Util::GDCM_UID = "1.2.826.0.1.3680043.2.1143";
+std::string Util::RootUID = GDCM_UID;
+
/**
* \brief Provide a better 'c++' approach for sprintf
* For example c code is:
{
char tmp[40];
long milliseconds;
- time_t *timep;
+ 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;
+ timep = tb.time;
milliseconds = tb.millitm;
#else
struct timeval tv;
gettimeofday (&tv, NULL);
- timep = &tv.tv_sec;
+ 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);
+ 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);
/**
* \brief Create a /DICOM/ string:
- * It should a of even lenght (no odd length ever)
+ * It should a of even length (no odd length ever)
* It can contain as many (if you are reading this from your
* editor the following character is is backslash followed by zero
* that needed to be escaped with an extra backslash for doxygen) \\0
* as you want.
* This function is similar to DicomString(const char*),
- * except it doesn't take a lenght.
+ * except it doesn't take a length.
* It only pad with a null character if length is odd
*/
std::string Util::DicomString(const char *s)
/**
* \brief Safely compare two Dicom String:
- * - Both string should be of even lenght
- * - We allow padding of even lenght string by either a null
+ * - Both string should be of even length
+ * - We allow padding of even length string by either a null
* character of a space
*/
bool Util::DicomStringEqual(const std::string &s1, const char *s2)
#endif //__sun
}
+/**
+ * Mini function to return the last digit from a number express in base 256
+ * pre condition data contain an array of 6 unsigned char
+ * post condition carry contain the last digit
+ */
+inline int getlastdigit(unsigned char *data)
+{
+ int extended, carry = 0;
+ for(int i=0;i<6;i++)
+ {
+ extended = (carry << 8) + data[i];
+ data[i] = extended / 10;
+ carry = extended % 10;
+ }
+ return carry;
+}
+
/**
* \brief Encode the mac address on a fixed lenght string of 15 characters.
* we save space this way.
// 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
- union dual { uint64_t n; unsigned char addr[6]; };
-
- // zero-initialize the whole thing first:
- dual d = { 0 };
- int stat = GetMacAddrSys(d.addr);
+ unsigned char addr[6];
+
+ int stat = GetMacAddrSys(addr);
if (stat == 0)
{
- // fill with zero to fit on 15 bytes.
-#if defined(_MSC_VER) || defined(__BORLANDC__)
- return Format("%015I64u", d.n);
-#else
- return Format("%015llu", d.n);
-#endif
+ // We need to convert a 6 digit number from base 256 to base 10, using integer
+ // would requires a 48bits one. To avoid this we have to reimplement the div + modulo
+ // with string only
+ bool zero = false;
+ int res;
+ std::string sres;
+ while(!zero)
+ {
+ res = getlastdigit(addr);
+ sres += ('0' + res);
+ zero = (addr[0] == 0) && (addr[1] == 0) && (addr[2] == 0) && (addr[3] == 0) && (addr[4] == 0) && (addr[5] == 0);
+ }
+ // Since we push back the proper number is reversed:
+ std::reverse(sres.begin(),sres.end());
+
+ return sres;
}
else
{
return str;
}
+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();
+#else
+ //default implementation
+ return 0;
+#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
+
+}
+
/**
* \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 prefix = root;
+ std::string prefix;
std::string append;
if( root.empty() )
{
- // No root was specified use "GDCM" then
- // echo "gdcm" | od -b
- // 0000000 147 144 143 155 012
- prefix = "147.144.143.155"; // special easter egg
+ // gdcm UID prefix, as supplied by http://www.medicalconnections.co.uk
+ prefix = RootUID;
}
- // else
+ else
+ {
+ prefix = root;
+ }
+
// A root was specified use it to forge our new UID:
append += ".";
append += Util::GetMACAddress();
return prefix + append;
}
-unsigned int Util::GetCurrentThreadID()
+void Util::SetRootUID(const std::string &root)
{
-// 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
+ if( root.empty() )
+ RootUID = GDCM_UID;
+ else
+ RootUID = root;
}
-unsigned int Util::GetCurrentProcessID()
+const std::string &Util::GetRootUID()
{
-#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 RootUID;
}
/**
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff