91     char* f_buf;                /* Allocated readahead buffer */  member
138     if (f->f_buf != NULL &&  in check_iterbuffered()
140         f->f_buf[0] != '\0') {  in check_iterbuffered()
403     if (f->f_buf != NULL) {  in Util_DropReadAhead()
404         PyMem_Free(f->f_buf);  in Util_DropReadAhead()
405         f->f_buf = NULL;  in Util_DropReadAhead()
416     if (f->f_buf != NULL) {  in Util_ReadAhead()
423         f->f_bufptr = f->f_buf;  in Util_ReadAhead()
424         f->f_bufend = f->f_buf;  in Util_ReadAhead()
427     if ((f->f_buf = PyMem_Malloc(bufsize)) == NULL) {  in Util_ReadAhead()
432     chunksize = Util_UnivNewlineRead(&bzerror, f->fp, f->f_buf,  in Util_ReadAhead()
444     f->f_bufptr = f->f_buf;  in Util_ReadAhead()
445     f->f_bufend = f->f_buf + chunksize;  in Util_ReadAhead()
459     if (f->f_buf == NULL)  in Util_ReadAheadGetLineSkip()
481         buf = f->f_buf;  in Util_ReadAheadGetLineSkip()
482         f->f_buf = NULL;                /* Force new readahead buffer */  in Util_ReadAheadGetLineSkip()