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From: | vincent cui |
Subject: | [lwip-users] mutex API in system layer is necessary ? |
Date: | Tue, 8 May 2012 00:52:46 +0000 |
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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