[lwip-devel] [bug #19167] tcp timeout handler can cause crash being invoked by sys_sem_wait()

[Dmitry Potapov]

Follow-up Comment #24, bug #19167 (project lwip):

I think it is better to define them as macros

#define sys_sem_wait(sem) ((void)sys_arch_sem_wait((sem), 0))
#define sys_sem_wait_timeout(sem, timeout) \
       (sys_arch_sem_wait((sem),(timeout))!=SYS_ARCH_TIMEOUT)

So we avoid call overhead.

But it is not completely solution, because it will increase delays in timeout
handling until sys_mbox_fetch is changed to use 'expires' as I suggested
before... But let's do one step a time...

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