back in win98 days (while working at opcode), I ran into this exact problem, and had to write code to deal with it.. I had hoped it had become a non-issue in the xp days, and had pulled this code out of my personal midi library.. but, maybe we still need to think about it..
-cpr Quoting Roger Dannenberg <[EMAIL PROTECTED]>: > Adam, > That code is in there because there were some claims and some > uncertainty about whether Microsoft's code could possibly issue a > callback while another was in progress. The feeling was no, it won't > happen, but if there *were* concurrent callbacks on the same device, it > would cause problems, so some checks were added. It seems plausible that > there could be concurrent callbacks on *different* devices, and it > sounds like a bug that this is tripping the assert(). > I want to look at the code, because I don't think anyone has really > considered whether the code is safe for multiple processors concurrently > handling MIDI callbacks. In the meantime, you could either read the code > too or just take out the entry count and assert() code and see what happens. > I'll report back when I've taken a closer look. > Thanks for the report -- it's a real issue that needs some attention. > -Roger > > _______________________________________________ > media_api mailing list > media_api@create.ucsb.edu > http://lists.create.ucsb.edu/mailman/listinfo/media_api > ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. _______________________________________________ media_api mailing list media_api@create.ucsb.edu http://lists.create.ucsb.edu/mailman/listinfo/media_api
