為了保證諸任務(wù)對(duì)臨界critical資源l'eso~ 的互斥訪問，VxWorks提供了任務(wù)同步機(jī)制。二進(jìn)制信號(hào)量是VxWorks系統(tǒng)中實(shí)現(xiàn)任務(wù)同步的一種重要手段，它保證了任務(wù)在并發(fā)時(shí)結(jié)果的一致性。簡要介紹二進(jìn)制信號(hào)量，闡述用二進(jìn)制信號(hào)量解決任務(wù)互斥和同步的方法，并給出二進(jìn)制信號(hào)量應(yīng)用在某數(shù)據(jù)采集系統(tǒng)中的程序框架。某數(shù)據(jù)采集系統(tǒng)中有
效地利用了VxWorks的信號(hào)量機(jī)制，實(shí)現(xiàn)了8個(gè)接收通道的數(shù)據(jù)采集、數(shù)據(jù)存儲(chǔ)以及數(shù)據(jù)查詢等任務(wù)對(duì)緩沖區(qū)的共享。

Task synchronizationforVxWorkstOacceSs criticall"l~ourc'emutuallyis applied．Binary so'aaphoreisanimportantmethodto realizing synchronization in VxWorks．The result consistent is improved when tasks are executed．The paper introduces binary—s~aaphore，
res~ ches the techniqu~ of solving mutexand synchronizatioa．a(chǎn)nd presents the program frame in X—data gathering system，which uses~mphoreto controlthedatagathering，stroing and queringtasks of 8一receiveing channels sharingthe buffer．