请教一个小问题

[googlehim]

uMBM_GeneralReqPack_t pack;
pack.destAddr = 0x01;
pack.data.length = 10;
pack.regAddr = 0;
uMBM_ErrCode_t err = uMBM_HoldingReg_Read(uMBM_GetDev(SensorHub, 0), &pack, osWaitForever);
if (err != MBM_ERR_OK) {
for (;;);
}
else {
uint16_t rcvHoldingReg[10];
uint16_t rcvLength = uMBM_GetBuffer_16(uMBM_GetDev(SensorHub, 0), rcvHoldingReg);
}
在 uMBM_HoldingReg_Read 里Release掉了Dev资源，然后在uMBM_GetBuffer_16里拷贝buffer，buffer会不会存在被冲掉的可能？

[FlandreUNX]

有可能,因为"uMBM_GetBuffer_16"提取的是dev里面的u16Buffer. dev结构体包括该buffer.当你free掉这个dev后在调用该函数,可能会导致空指针,或者获得一堆乱码

…

________________________________ 发件人: googlehim <notifications@github.com> 发送时间: 2018年1月5日 16:41 收件人: FlandreUNX/uModbusMaster 抄送: Subscribed 主题: [FlandreUNX/uModbusMaster] 请教一个小问题 (#1) uMBM_GeneralReqPack_t pack; pack.destAddr = 0x01; pack.data.length = 10; pack.regAddr = 0; uMBM_ErrCode_t err = uMBM_HoldingReg_Read(uMBM_GetDev(SensorHub, 0), &pack, osWaitForever); if (err != MBM_ERR_OK) { for (;;); } else { uint16_t rcvHoldingReg[10]; uint16_t rcvLength = uMBM_GetBuffer_16(uMBM_GetDev(SensorHub, 0), rcvHoldingReg); } 在 uMBM_HoldingReg_Read 里Release掉了Dev资源，然后在uMBM_GetBuffer_16里拷贝buffer，buffer会不会存在被冲掉的可能？ ― You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<#1>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AJjS9E15VQWfhAhSaaZXqwtyD9drlSE6ks5tHlDRgaJpZM4RUq2d>.