fix select usage
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@@ -89,12 +89,15 @@ bool PIWaitEvent::wait(int fd, CheckRole role) {
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FD_SET(pipe_fd[ReadEnd], &(fds[CheckRead]));
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FD_SET(fd, &(fds[CheckExeption]));
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if (fd_index != CheckExeption) FD_SET(fd, &(fds[fd_index]));
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int sr = ::select(nfds, &(fds[CheckRead]), &(fds[CheckWrite]), &(fds[CheckExeption]), nullptr);
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int sr = -1;
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do {
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sr = ::select(nfds, &(fds[CheckRead]), &(fds[CheckWrite]), &(fds[CheckExeption]), nullptr);
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} while (sr < 0 && errno == EINTR);
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int buf = 0;
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while (::read(pipe_fd[ReadEnd], &buf, sizeof(buf)) > 0)
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;
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// piCout << "wait result" << sr << FD_ISSET(fd, &(fds[CheckExeption])) << FD_ISSET(fd, &(fds[fd_index]));
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if (sr == EBADF || sr == EINTR) return false;
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if (sr < 0) return false;
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if (FD_ISSET(fd, &(fds[CheckExeption]))) return true;
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return FD_ISSET(fd, &(fds[fd_index]));
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#endif
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