e8f2e051a3
return the number of processes waiting on the semaphore. We now maintiain a count of waiting processes. - Blocked processes are unblocked "first in, first out". We now have a queue of waiting processes on a asemaphores, so that we can wakeup the first blocked process. Problems: - We now have a lot of dynamic memory allocation, it may be a bit slow. - Nothing is SMP safe for now. We need to add locks. - On close, we forget about a semaphore, which is incorrect. One process can close its fd attached on a semaphore, but other processes would carry on using it. Since any process can join a shared arena, this is not an easy thing to solve. - A lot of usema/usync functionnalities are still to be discovered. |
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| aout | ||
| aoutm68k | ||
| common | ||
| freebsd | ||
| hpux | ||
| ibcs2 | ||
| irix | ||
| linux | ||
| m68k4k | ||
| mach | ||
| netbsd32 | ||
| osf1 | ||
| ossaudio | ||
| pecoff | ||
| sunos | ||
| sunos32 | ||
| svr4 | ||
| svr4_32 | ||
| ultrix | ||
| vax1k | ||
| Makefile | ||