1 files changed, 211 insertions, 23 deletions

diff --git a/qmake/tools/quuid.cpp b/qmake/tools/quuid.cpp
index fd99abf..199bfa5 100644
--- a/qmake/tools/quuid.cpp
+++ b/qmake/tools/quuid.cpp
@@ -1,3 +1,3 @@
 /****************************************************************************
-** $Id$
+** 
 **
@@ -37,3 +37,3 @@
 
-#include <qdatastream.h>
+#include "qdatastream.h"
 
@@ -41,17 +41,23 @@
   \class QUuid quuid.h
-  \reentrant
   \brief The QUuid class defines a Universally Unique Identifier (UUID).
 
-  \internal
+    \reentrant
+
+    For objects or declarations that must be uniquely identified,
+    UUIDs (also known as GUIDs) are widely used in order to assign a
+    fixed and easy to compare value to the object or declaration. The
+    128-bit value of a UUID is generated by an algorithm that
+    guarantees that the value is unique.
 
-  For objects or declarations that need to be identified uniquely, UUIDs (also known as GUIDs) are widely
-  used in order to assign a fixed and easy to compare value to this object or declaration. The 128bit value
-  of an UUID is generated by an algorithm that guarantees a value that is unique in time and space.
+    In Qt, UUIDs are wrapped by the QUuid struct which provides
+    convenience functions for handling UUIDs. Most platforms provide a
+    tool to generate new UUIDs, for example, uuidgen and guidgen.
 
-  In Qt, UUIDs are wrapped by the QUuid struct which provides convenience functions for comparing and coping
-  this value. The QUuid struct is used in Qt's component model to identify interfaces. Most platforms provide a tool to
-  generate new UUIDs (uuidgen, guidgen), and the Qt distribution includes a graphical tool \e quuidgen that generates
-  the UUIDs in a programmer friendly format.
+    UUIDs generated by QUuid, are based on the \c Random version of the
+    \c DCE (Distributed Computing Environment) standard.
 
-  \sa QUnknownInterface
+    UUIDs can be constructed from numeric values or from strings, or
+    using the static createUuid() function. They can be converted to a
+    string with toString(). UUIDs have a variant() and a version(),
+    and null UUIDs return TRUE from isNull().
 */
@@ -67,4 +73,5 @@
 
-  Creates an UUID with the value specified by the parameters, \a l, \a
-  w1, \a w2, \a b1, \a b2, \a b3, \a b4, \a b5, \a b6, \a b7, \a b8.
+    Creates a UUID with the value specified by the parameters, \a l,
+    \a w1, \a w2, \a b1, \a b2, \a b3, \a b4, \a b5, \a b6, \a b7, \a
+    b8.
 
@@ -84,5 +91,6 @@
 /*!
-  Creates a QUuid object from the string \a text. Right now, the function
-  can only convert the format {12345678-1234-1234-1234-123456789ABC} and
-  will create the null UUID when the conversion fails.
+    Creates a QUuid object from the string \a text. The function can
+    only convert a string in the format
+    {HHHHHHHH-HHHH-HHHH-HHHH-HHHHHHHHHHHH} (where 'H' stands for a hex
+    digit). If the conversion fails a null UUID is created.
 */
@@ -91,3 +99,11 @@ QUuid::QUuid( const QString &text )
     bool ok;
+    if ( text.isEmpty() ) {
+        *this = QUuid();
+        return;
+    }
     QString temp = text.upper();
+    if ( temp[0] != '{' )
+        temp = "{" + text;
+    if ( text[(int)text.length()-1] != '}' )
+        temp += "}";
 
@@ -129,3 +145,3 @@ QUuid::QUuid( const QString &text )
 /*!
-    \overload
+    \internal
 */
@@ -145,3 +161,4 @@ QUuid::QUuid( const char *text )
 
-  Returns TRUE if this QUuid and the \a other QUuid are identical, otherwise returns FALSE.
+    Returns TRUE if this QUuid and the \a other QUuid are identical;
+    otherwise returns FALSE.
 */
@@ -151,3 +168,4 @@ QUuid::QUuid( const char *text )
 
-  Returns TRUE if this QUuid and the \a other QUuid are different, otherwise returns FALSE.
+    Returns TRUE if this QUuid and the \a other QUuid are different;
+    otherwise returns FALSE.
 */
@@ -186,3 +204,3 @@ QString QUuid::toString() const
   \relates QUuid
-  Writes the \a id to the datastream \a s.
+    Writes the uuid \a id to the datastream \a s.
 */
@@ -200,3 +218,3 @@ QDataStream &operator<<( QDataStream &s, const QUuid &id )
   \relates QUuid
-  Reads a universally unique id from from the stream \a s into \a id.
+    Reads uuid from from the stream \a s into \a id.
 */
@@ -222,3 +240,4 @@ QDataStream &operator>>( QDataStream &s, QUuid &id )
 /*!
-  Returns TRUE if this is the null UUID {00000000-0000-0000-0000-000000000000}, otherwise returns FALSE.
+    Returns TRUE if this is the null UUID
+    {00000000-0000-0000-0000-000000000000}; otherwise returns FALSE.
 */
@@ -230 +249,170 @@ bool QUuid::isNull() const
 }
+
+/*!
+    \enum QUuid::Variant
+
+    This enum defines the variant of the UUID, which is the scheme
+    which defines the layout of the 128-bits value.
+
+    \value VarUnknown Variant is unknown
+    \value NCS Reserved for NCS (Network Computing System) backward compatibility
+    \value DCE Distributed Computing Environment, the scheme used by QUuid
+    \value Microsoft Reserved for Microsoft backward compatibility (GUID)
+    \value Reserved Reserved for future definition
+*/
+
+/*!
+    \enum QUuid::Version
+
+    This enum defines the version of the UUID.
+
+    \value VerUnknown Version is unknown
+    \value Time Time-based, by using timestamp, clock sequence, and
+    MAC network card address (if available) for the node sections
+    \value EmbeddedPOSIX DCE Security version, with embedded POSIX UUIDs
+    \value Name Name-based, by using values from a name for all sections
+    \value Random Random-based, by using random numbers for all sections
+*/
+
+/*!
+    \fn QUuid::Variant QUuid::variant() const
+
+    Returns the variant of the UUID.
+    The null UUID is considered to be of an unknown variant.
+
+    \sa version()
+*/
+QUuid::Variant QUuid::variant() const
+{
+    if ( isNull() )
+        return VarUnknown;
+    // Check the 3 MSB of data4[0]
+    if ( (data4[0] & 0x80) == 0x00 ) return NCS;
+    else if ( (data4[0] & 0xC0) == 0x80 ) return DCE;
+    else if ( (data4[0] & 0xE0) == 0xC0 ) return Microsoft;
+    else if ( (data4[0] & 0xE0) == 0xE0 ) return Reserved;
+    return VarUnknown;
+}
+
+/*!
+    \fn QUuid::Version QUuid::version() const
+
+    Returns the version of the UUID, if the UUID is of the DCE
+    variant; otherwise returns VerUnknown.
+
+    \sa variant()
+*/
+QUuid::Version QUuid::version() const
+{
+    // Check the 4 MSB of data3
+    Version ver = (Version)(data3>>12);
+    if ( isNull() 
+         || (variant() != DCE)
+         || ver < Time 
+         || ver > Random )
+        return VerUnknown;
+    return ver;
+}
+
+/*!
+    \fn bool QUuid::operator<(const QUuid &other) const
+
+    Returns TRUE if this QUuid is of the same variant,
+    and lexicographically before the \a other QUuid;
+    otherwise returns FALSE.
+
+    \sa variant()
+*/
+#define ISLESS(f1, f2) if (f1!=f2) return (f1<f2);
+bool QUuid::operator<(const QUuid &other ) const
+{
+    if ( variant() != other.variant() )
+        return FALSE;
+
+    ISLESS( data1, other.data1 );
+    ISLESS( data2, other.data2 );
+    ISLESS( data3, other.data3 );
+    for ( int n = 0; n < 8; n++ ) {
+        ISLESS( data4[n], other.data4[n] );
+    }
+    return FALSE;
+}
+
+/*!
+    \fn bool QUuid::operator>(const QUuid &other) const
+
+    Returns TRUE if this QUuid is of the same variant,
+    and lexicographically after the \a other QUuid;
+    otherwise returns FALSE.
+
+    \sa variant()
+*/
+#define ISMORE(f1, f2) if (f1!=f2) return (f1>f2);
+bool QUuid::operator>(const QUuid &other ) const
+{
+    if ( variant() != other.variant() )
+        return FALSE;
+
+    ISMORE( data1, other.data1 );
+    ISMORE( data2, other.data2 );
+    ISMORE( data3, other.data3 );
+    for ( int n = 0; n < 8; n++ ) {
+        ISMORE( data4[n], other.data4[n] );
+    }
+    return FALSE;
+}
+
+/*!
+    \fn QUuid QUuid::createUuid()
+
+    Returns a new UUID of \c DCE variant, and \c Random type. The
+    UUIDs generated are based on the platform specific pseudo-random
+    generator, which is usually not a cryptographic-quality random
+    number generator. Therefore, a UUID is not guaranteed to be unique
+    cross application instances.
+
+    On Windows, the new UUID is extremely likely to be unique on the
+    same or any other system, networked or not.
+
+    \sa variant(), version()
+*/
+#if defined(Q_OS_WIN32)
+#include <objbase.h> // For CoCreateGuid
+QUuid QUuid::createUuid()
+{
+    GUID guid;
+    CoCreateGuid( &guid );
+    QUuid result = guid;
+    return result;
+}
+#else // !Q_OS_WIN32
+#include "qdatetime.h"
+#include "stdlib.h" // For srand/rand
+QUuid QUuid::createUuid()
+{
+    static const int intbits = sizeof(int)*8;
+    static int randbits = 0;
+    if ( !randbits ) {
+        int max = RAND_MAX;
+        do { ++randbits; } while ( (max=max>>1) );
+        srand( (uint)QDateTime::currentDateTime().toTime_t() );
+        rand(); // Skip first
+    }
+
+    QUuid result;
+    uint *data = &(result.data1);
+    int chunks = 16 / sizeof(uint);
+    while ( chunks-- ) {
+        uint randNumber = 0;
+        for ( int filled = 0; filled < intbits; filled += randbits )
+            randNumber |= rand()<<filled;
+         *(data+chunks) = randNumber;
+    }
+
+            result.data4[0] = (result.data4[0] & 0x3F) | 0x80;// UV_DCE
+            result.data3 = (result.data3 & 0x0FFF) | 0x4000;// UV_Random
+
+    return result;
+}
+#endif // !Q_OS_WIN32
+