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netlink-socket: Simplify use of transactions and dumps.

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This disentangles "struct nl_dump" from "struct nl_sock", clearing the way
to make the use of either one thread-safe in an obviously correct manner.

Signed-off-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Ben Pfaff
2013-04-29 13:57:50 -07:00
parent bb5c146881
commit a88b4e0412
5 changed files with 115 additions and 159 deletions
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9
lib/netlink-socket.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -84,6 +84,11 @@ struct nl_transaction {
void nl_sock_transact_multiple(struct nl_sock *,
struct nl_transaction **, size_t n);
/* Transactions without an allocated socket. */
int nl_transact(int protocol, const struct ofpbuf *request,
struct ofpbuf **replyp);
void nl_transact_multiple(int protocol, struct nl_transaction **, size_t n);
/* Table dumping. */
struct nl_dump {
struct nl_sock *sock; /* Socket being dumped. */
@@ -92,7 +97,7 @@ struct nl_dump {
int status; /* 0=OK, EOF=done, or positive errno value. */
};
void nl_dump_start(struct nl_dump *, struct nl_sock *,
void nl_dump_start(struct nl_dump *, int protocol,
const struct ofpbuf *request);
bool nl_dump_next(struct nl_dump *, struct ofpbuf *reply);
int nl_dump_done(struct nl_dump *);