All:
I had port latest lwip1.4.0 to my system, it works well . but I found some
additional api about mutex are defined in 1.4.0
I want to know that are they necessary ?
err_t sys_mutex_new(sys_mutex_t *mutex)
{
return ERR_OK;
}
void sys_mutex_lock(sys_mutex_t *mutex)
{
}
void sys_mutex_unlock(sys_mutex_t *mutex)
{
}
void sys_mutex_free(sys_mutex_t *mutex)
{
}
int sys_mutex_valid(sys_mutex_t *mutex)
{
return (int )(*mutex);
}
void sys_mutex_set_invalid(sys_mutex_t *mutex)
{
*mutex = SYS_SEM_NULL;
}
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