[ Charset ISO-8859-15 unsupported, converting... ] > Am Dienstag, 30. Mai 2006 01:05 schrieb Alain Michaud: > > Hi, > > > > would someone know how to execute: spin_lock spin_lock_init and > > spin_unlock > > > > I just want to disable the interrupts for 200 miliseconds maximum! > > This is not too long and hopefuly, my system will not crash... > > Well, 200 ms is about ages for the CPU/Kernel .. > > > Does someone has any experience with this kind of situation. > > This is not that easy: Is it only for UP or maybe also for SMP machines? > Basically, for x86 the "cli" and "sti" asm instructions do disable/ > enable interrupts, but read about it before you try. > Currently, I do such stuff only inside a driver (Linux kernel: > spin_lock, or win98 vxd: cli/sti) and don't know about any user space > function for this.
FreeBSD has (in pthread.h): int pthread_spin_init(pthread_spinlock_t *, int); int pthread_spin_destroy(pthread_spinlock_t *); int pthread_spin_lock(pthread_spinlock_t *); int pthread_spin_trylock(pthread_spinlock_t *); int pthread_spin_unlock(pthread_spinlock_t *); _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
