Saving and restoring the value of errno in the signal handler, as follows, can resolve the problem

如下，在信号处理器内保存和恢复 errno 的值，可以解决这一问题

youdao

In a signal-processing application, all the speed advantages offered by banded matrices would be lost if restoring the signal required multiplying it by a full matrix.

在信号处理应用程序中，如果恢复信号需要乘上一个“满”的矩阵，那么带状矩阵提供的所有的速度优势都将不复存在。

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Signal unit initial alignment - invokes initial alignment prior to activating or restoring a signaling link.

信令单元初始定位——在激活或恢复信令链路之前调用初始定位。

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If, as Senator Bill Bradley and others have suggested, Western government credits and loan guarantees are taxpayer subsidies which should be ended multilaterally, then the United States should not send the opposite signal to our allies by restoring such U.S. credit subsidies.

CENTERFORSECURITYPOLICY: Center For Security Policy