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Author Topic: DOLBY DSS/DSP 100 lost time/date Harold Hallikainen Jedi Master Film Handler Posts: 906 From: Denver, CO, USA Registered: Aug 2009 posted 03-05-2019 08:21 PM                        True, but I do not have the source for time.c . Calculating out the date for dates beyond 2038 would be interesting. I really don't know how they do it for the signed 32 bit integer. I just call the function and back comes a date and time string! Harold  |  IP: Logged Marcel Birgelen Film God Posts: 3357 From: Maastricht, Limburg, Netherlands Registered: Feb 2012 posted 03-06-2019 02:46 AM                     I think this is the moment where Bruce should chime in and tell you about the virtues of having your own OS. We're getting a bit off-topic, but well... Usually, systems that use signed 32-bit integers for their timestamp, with 1970-1-1 as the epoch, simply can't handle any date beyond 2038 and they wrap around. Also, negative timestamps are seen as dates BEFORE the UNIX epoch. This is how it's handled according to POSIX standards, but many libraries violate that standard and some produce arbitrary results. Now, if there are no updates for your OS and/or development stack and if you don't have access to the sources of your OS, but the system is still functional, even after it wraps around from 2^31-1 to -2^31 and users interface with your system only via your own software... Well, then you could do some kind of hack. You could replace all time functions with your own time functions, which essentially are a wrapper around the existing time functions. If you encounter a negative timestamp, you add 2^31-1 to it. Instead of time.h, you'll just need to include harold_time.h. Maybe this is a gross oversimplification, but I don't really know the nitty-gritty details obviously.  |  IP: Logged

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