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netlink: Remove buffer from 'struct nl_dump'.

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This patch makes all of the users of 'struct nl_dump' allocate their own
buffers to pass down to nl_dump_next(). This paves the way for allowing
multithreaded flow dumping.

Signed-off-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Joe Stringer
2014-02-27 14:13:05 -08:00
committed by Ben Pfaff
parent 8f6736d326
commit d57695d77e
5 changed files with 90 additions and 49 deletions
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5
lib/netlink-socket.h
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@@ -96,16 +96,17 @@ int nl_transact(int protocol, const struct ofpbuf *request,
void nl_transact_multiple(int protocol, struct nl_transaction **, size_t n);
/* Table dumping. */
#define NL_DUMP_BUFSIZE 4096
struct nl_dump {
struct nl_sock *sock; /* Socket being dumped. */
uint32_t nl_seq; /* Expected nlmsg_seq for replies. */
struct ofpbuf buffer; /* Receive buffer currently being iterated. */
int status; /* 0=OK, EOF=done, or positive errno value. */
};
void nl_dump_start(struct nl_dump *, int protocol,
const struct ofpbuf *request);
bool nl_dump_next(struct nl_dump *, struct ofpbuf *reply);
bool nl_dump_next(struct nl_dump *, struct ofpbuf *reply, struct ofpbuf *buf);
int nl_dump_done(struct nl_dump *);
/* Miscellaneous */