32 	int buf_len;  member
161 	if (pp->state == PIPE_CLOSE_WAIT && pp->buf_len == 0) {  in PipeRead()
176 		while (pp->buf_len == 0) {  in PipeRead()
186 	to_read = MIN(len, pp->buf_len);  in PipeRead()
199 	if (pp->buf_len == pp->buf_size)  in PipeRead()
211 	pp->buf_len -= to_read;  in PipeRead()
221 	if (pp->buf_len > 0) {  in PipeRead()
226 	} else if (pp->state == PIPE_CLOSE_WAIT && pp->buf_len == 0) {  in PipeRead()
280 		while (pp->buf_len == pp->buf_size) {  in PipeWrite()
290 	to_write = MIN(len, pp->buf_size - pp->buf_len);  in PipeWrite()
299 	if (pp->buf_len == 0)  in PipeWrite()
313 	pp->buf_len += to_write;  in PipeWrite()
323 	if (pp->buf_len < pp->buf_size) {  in PipeWrite()
348 		if (pp->buf_len > 0) {  in RaisePendingPipeEvents()
357 		if (pp->buf_len < pp->buf_size) {  in RaisePendingPipeEvents()