tbf/test: Rename send_rlc_block to request_dl_rlc_block

This function basically request the generation of the next downlink
RLC block. Since this will no really send somthing to the PCU, the
current name can be misleading.

This commit just renames the function.

Sponsored-by: On-Waves ehf
diff --git a/tests/tbf/TbfTest.cpp b/tests/tbf/TbfTest.cpp
index 2237d56..22f0a97 100644
--- a/tests/tbf/TbfTest.cpp
+++ b/tests/tbf/TbfTest.cpp
@@ -201,7 +201,7 @@
 	return fn % 2715648;
 }
 
-static void send_rlc_block(struct gprs_rlcmac_bts *bts,
+static void request_dl_rlc_block(struct gprs_rlcmac_bts *bts,
 	uint8_t trx_no, uint8_t ts_no, uint16_t arfcn,
 	uint32_t *fn, uint8_t *block_nr = NULL)
 {
@@ -213,10 +213,10 @@
 		*block_nr = bn;
 }
 
-static void send_rlc_block(struct gprs_rlcmac_tbf *tbf,
+static void request_dl_rlc_block(struct gprs_rlcmac_tbf *tbf,
 	uint32_t *fn, uint8_t *block_nr = NULL)
 {
-	send_rlc_block(tbf->bts->bts_data(), tbf->trx->trx_no,
+	request_dl_rlc_block(tbf->bts->bts_data(), tbf->trx->trx_no,
 		tbf->control_ts, tbf->trx->arfcn, fn, block_nr);
 }
 
@@ -259,7 +259,7 @@
 	fn = 0;
 	do {
 		/* Request to send one block */
-		send_rlc_block(dl_tbf, &fn, &block_nr);
+		request_dl_rlc_block(dl_tbf, &fn, &block_nr);
 	} while (block_nr < 3);
 
 	OSMO_ASSERT(dl_tbf->have_data());
@@ -333,7 +333,7 @@
 	/* Drain the queue */
 	while (dl_tbf->have_data())
 		/* Request to send one RLC/MAC block */
-		send_rlc_block(dl_tbf, &fn);
+		request_dl_rlc_block(dl_tbf, &fn);
 
 	OSMO_ASSERT(dl_tbf->state_is(GPRS_RLCMAC_FLOW));
 
@@ -344,7 +344,7 @@
 	OSMO_ASSERT(dl_tbf->m_window.window_empty());
 
 	/* Force sending of a single block containing an LLC dummy command */
-	send_rlc_block(dl_tbf, &fn);
+	request_dl_rlc_block(dl_tbf, &fn);
 
 	/* Receive an ACK */
 	dl_tbf->rcvd_dl_ack(0, dl_tbf->m_window.v_s(), rbb);
@@ -352,7 +352,7 @@
 
 	/* Timeout (make sure fn % 52 remains valid) */
 	fn += 52 * ((msecs_to_frames(bts->dl_tbf_idle_msec + 100) + 51)/ 52);
-	send_rlc_block(dl_tbf, &fn);
+	request_dl_rlc_block(dl_tbf, &fn);
 
 	OSMO_ASSERT(dl_tbf->state_is(GPRS_RLCMAC_FINISHED));
 
@@ -609,7 +609,7 @@
 	bts = the_bts->bts_data();
 
 	/* needed to set last_rts_fn in the PDCH object */
-	send_rlc_block(bts, trx_no, ts_no, 0, fn);
+	request_dl_rlc_block(bts, trx_no, ts_no, 0, fn);
 
 	/* simulate RACH, this sends an Immediate Assignment Uplink on the AGCH */
 	the_bts->rcv_rach(0x73, rach_fn, qta);
@@ -643,7 +643,7 @@
 
 	/* send packet uplink assignment */
 	*fn = sba_fn;
-	send_rlc_block(ul_tbf, fn);
+	request_dl_rlc_block(ul_tbf, fn);
 
 	/* TODO: send real acknowledgement */
 	/* Fake acknowledgement */