225 FILE* CustomPopen(const std::vector<std::string>& command, const char* type, int fds[],  in CustomPopen()  argument
240     CHECK_TRUE(pipe(fds) == 0, nullptr, "Pipe open failed!");  in CustomPopen()
257             CHECK_TRUE(CustomFdClose(fds[READ]) == 0, nullptr, "CustomFdClose failed!");  in CustomPopen()
258             dup2(fds[WRITE], STDOUT_FILENO); // Redirect stdout to pipe  in CustomPopen()
259             CHECK_TRUE(CustomFdClose(fds[WRITE]) == 0, nullptr, "CustomFdClose failed!");  in CustomPopen()
261             CHECK_TRUE(CustomFdClose(fds[WRITE]) == 0, nullptr, "CustomFdClose failed!");  in CustomPopen()
262             dup2(fds[READ], STDIN_FILENO); // Redirect stdin to pipe  in CustomPopen()
263             CHECK_TRUE(CustomFdClose(fds[READ]) == 0, nullptr, "CustomFdClose failed!");  in CustomPopen()
277 …     CHECK_TRUE(CustomFdClose(fds[WRITE]) == 0, nullptr, "%s %d CustomFdClose failed! errno(%s)\n",  in CustomPopen()
281 …      CHECK_TRUE(CustomFdClose(fds[READ]) == 0, nullptr, "%s %d CustomFdClose failed! errno(%s)\n",  in CustomPopen()
290         return fdopen(fds[READ], "r");  in CustomPopen()
294     return fdopen(fds[WRITE], "w");  in CustomPopen()
297 int CustomPclose(FILE* fp, int fds[], volatile pid_t& childPid, bool needUnblock)  in CustomPclose()  argument
318         if (fileno(fp) == fds[READ]) {  in CustomPclose()
319             fds[READ] = -1;  in CustomPclose()
320             CHECK_TRUE(CustomFdClose(fds[WRITE]) == 0, -1, "CustomFdClose failed!");  in CustomPclose()
321         } else if (fileno(fp) == fds[WRITE]) {  in CustomPclose()
322             fds[WRITE] = -1;  in CustomPclose()
323             CHECK_TRUE(CustomFdClose(fds[READ]) == 0, -1, "CustomFdClose failed!");  in CustomPclose()
336 int CustomPUnblock(int fds[])  in CustomPUnblock()  argument
340     CHECK_TRUE(fds[READ] != -1 && fds[WRITE] != -1, -1, "END fds[READ/WRITE]=-1");  in CustomPUnblock()
342     int stat = fcntl(fds[READ], F_GETFL);  in CustomPUnblock()
348         write(fds[WRITE], eof, strlen(eof) + 1);  in CustomPUnblock()
349         fcntl(fds[READ], F_SETFL, O_NONBLOCK);  in CustomPUnblock()