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tcp: Move socket pool declarations around

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tcp_splice.c has some explicit extern declarations to access the
socket pools.  This is pretty dangerous - if we changed the type of
these variables in tcp.c, we'd have tcp.c and tcp_splice.c using the
same memory in different ways with no compiler error.  So, move the
extern declarations to tcp_conn.h so they're visible to both tcp.c and
tcp_splice.c, but not the rest of pasta.

In fact the pools for the guest namespace are necessarily only used by
tcp_splice.c - we have no sockets on the guest side if we're not
splicing.  So move those declarations and the functions that deal
exclusively with them to tcp_splice.c

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2023-02-14 10:48:21 +11:00 • committed by Stefano Brivio
parent c8993476d5
commit 912d37cd5b
4 changed files with 55 additions and 48 deletions

2
tcp.h
View file

@ -11,8 +11,6 @@
#define TCP_CONN_INDEX_BITS 17 /* 128k */
#define TCP_MAX_CONNS (1 << TCP_CONN_INDEX_BITS)
#define TCP_SOCK_POOL_SIZE 32
struct ctx;
void tcp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,