Piero 74 wrote:
LWIP has its task (tcpip thread - i'm using socket), and i saw that
this task can block forever trought functions in sys_arch.c
sys_arch_sem_wait and sys_arch_mbox_fetch.
I implemented these functions putting a macro functions inside a
infinite loop (execute if timeout parameter is 0).
Why don't you simply use sys_timeout to get your triggering function
called periodically? It puts a callback on a list which is processed by
sys_sem_wait() before calling sys_arch_sem_wait(). Normally,
sys_arch_sem_wait() will never be called with infinite timeout from
tcpip_thread, there are always timeouts running. Look at tcpip.c for
examples how to use it.
Simon
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