Convert osmo_bts_sock.cpp to C
There's no real point in using C++ there, and using C++ makes the
compiler fail to use llist_head in multi-bts patches added later due to:
"""
'offsetof' within non-standard-layout type is conditionally-supported
"""
Change-Id: I8965b5cc5a713e64788b5b6aa183d3035341ddbb
diff --git a/src/pcu_l1_if.h b/src/pcu_l1_if.h
index 674ccca..8ef262c 100644
--- a/src/pcu_l1_if.h
+++ b/src/pcu_l1_if.h
@@ -150,19 +150,18 @@
void pcu_l1if_tx_agch(bitvec * block, int len);
void pcu_l1if_tx_pch(bitvec * block, int plen, uint16_t pgroup);
-
-int pcu_tx_txt_ind(enum gsm_pcu_if_text_type t, const char *fmt, ...);
-
-int pcu_l1if_open(void);
-void pcu_l1if_close(void);
-
-int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim);
-int pcu_sock_send(struct msgb *msg);
#endif
#ifdef __cplusplus
extern "C" {
#endif
+int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim);
+int pcu_l1if_open(void);
+void pcu_l1if_close(void);
+int pcu_sock_send(struct msgb *msg);
+
+int pcu_tx_txt_ind(enum gsm_pcu_if_text_type t, const char *fmt, ...);
+
int pcu_rx_rts_req_pdtch(uint8_t trx, uint8_t ts,
uint32_t fn, uint8_t block_nr);
int pcu_rx_rts_req_ptcch(uint8_t trx, uint8_t ts,