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epoll: Better handling of number of epoll types

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As we already did for flow types, use an "EPOLL_NUM_TYPES" isntead of
EPOLL_TYPE_MAX, which is a little bit safer and clearer.  Add a static
assert on the size of the matching names array.

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 2024-01-16 11:50:37 +11:00 • committed by Stefano Brivio
parent 36dfa8b8fb
commit 70121ca1ec
2 changed files with 5 additions and 3 deletions

4
passt.h
View file

@ -70,7 +70,7 @@ enum epoll_type {
/* socket listening for qemu socket connections */
EPOLL_TYPE_TAP_LISTEN,
EPOLL_TYPE_MAX = EPOLL_TYPE_TAP_LISTEN,
EPOLL_NUM_TYPES,
};
/**
@ -115,7 +115,7 @@ extern char pkt_buf [PKT_BUF_BYTES];
extern char *epoll_type_str[];
#define EPOLL_TYPE_STR(n) \
(((uint8_t)(n) <= EPOLL_TYPE_MAX && epoll_type_str[(n)]) ? \
(((uint8_t)(n) < EPOLL_NUM_TYPES && epoll_type_str[(n)]) ? \
epoll_type_str[(n)] : "?")
#include <resolv.h> /* For MAXNS below */