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Fix globally unique string.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@14245 72102866-910b-0410-8b05-ffd578937521
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CaS 2002-08-07 16:15:01 +00:00
parent a6541762d3
commit 620ebe03a1
2 changed files with 21 additions and 11 deletions
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2
ChangeLog
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@ -13,6 +13,8 @@
* Source/NSObject.m: Remove dealloc notifications hack ... the * Source/NSObject.m: Remove dealloc notifications hack ... the
dealloc method can now safely be used to refrain from deallocating dealloc method can now safely be used to refrain from deallocating
objects, so I don't think the hack is needed any more. objects, so I don't think the hack is needed any more.
* Source/NSProcessInfo.m: ([-globallyUniqueString]) Update to ensure
uniqueness across all hosts, processes, and threads.
* Tools/gdomap.c: Tidyup patch by Matthias Klose * Tools/gdomap.c: Tidyup patch by Matthias Klose
2002-07-29 Adam Fedor <fedor@gnu.org> 2002-07-29 Adam Fedor <fedor@gnu.org>

30
Source/NSProcessInfo.m
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@ -40,9 +40,8 @@
* purpose to override the autorelease, retain, and release methods. * purpose to override the autorelease, retain, and release methods.
* To Do : * To Do :
* 1) To test the class on more platforms; * 1) To test the class on more platforms;
* 2) To change the format of the string renurned by globallyUniqueString;
* Bugs : Not known * Bugs : Not known
* Last update: 22-jul-1999 * Last update: 07-aug-2002
* History : 06-aug-1995 - Birth and the first beta version (v. 0.5); * History : 06-aug-1995 - Birth and the first beta version (v. 0.5);
* 08-aug-1995 - V. 0.6 (tested on NS, SunOS, Solaris, OSF/1 * 08-aug-1995 - V. 0.6 (tested on NS, SunOS, Solaris, OSF/1
* The use of the environ global var was changed to more * The use of the environ global var was changed to more
@ -589,24 +588,33 @@ int main(int argc, char *argv[], char *env[])
} }
/** /**
* Returns a string which may be used as a unique identifier for the * Returns a string which may be used as a globally unique identifier.<br />
* current process. * The string contains the host name, the process ID, a timestamp and a
* counter (to ensure that multiple strings generated within the same
* process are unique).
*/ */
- (NSString *) globallyUniqueString - (NSString *) globallyUniqueString
{ {
int pid; static int pid = 0;
static int counter = 0;
int count;
if (pid == 0)
{
#if defined(__MINGW__) #if defined(__MINGW__)
pid = (int)GetCurrentProcessId(); pid = (int)GetCurrentProcessId();
#else #else
pid = (int)getpid(); pid = (int)getpid();
#endif #endif
}
[gnustep_global_lock lock];
count = counter++;
[gnustep_global_lock unlock];
// $$$ The format of the string is not specified by the OpenStep // $$$ The format of the string is not specified by the OpenStep
// specification. It could be useful to change this format after // specification.
// NeXTSTEP release 4.0 comes out. return [NSString stringWithFormat: @"%@_%d_%lf_%d",
return [NSString stringWithFormat: @"%@:%d:[%@]", [self hostName], pid, GSTimeNow(), count];
[self hostName], pid, [NSDate date]];
} }
/** /**