18         gzFile logStream = gzopen(filename.c_str(), "r");  in gzGetLines()  local
19         if (logStream == nullptr)  in gzGetLines()
25         if (!readFile(logStream, skip, top, logEntries, logCount))  in gzGetLines()
27             gzclose(logStream);  in gzGetLines()
30         gzclose(logStream);  in gzGetLines()
44     static void printErrorMessage(gzFile logStream)  in printErrorMessage()  argument
47         const char* errMsg = gzerror(logStream, &errNum);  in printErrorMessage()
54     bool readFile(gzFile logStream, uint64_t skip, uint64_t top,  in readFile()  argument
63             int bytesRead = gzread(logStream, bufferStr.data(),  in readFile()
68                 printErrorMessage(logStream);  in readFile()
77         } while (gzeof(logStream) != 1);  in readFile()