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bufferevent: refactor to use type check macros

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This commit is contained in:
Dominic Chen 2017-04-13 14:58:13 -04:00
parent 266f43af77
commit 92cc0b9c3d
6 changed files with 19 additions and 12 deletions
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7
bufferevent-internal.h
View File

@ -306,6 +306,13 @@ extern const struct bufferevent_ops bufferevent_ops_pair;
#define BEV_IS_FILTER(bevp) ((bevp)->be_ops == &bufferevent_ops_filter)
#define BEV_IS_PAIR(bevp) ((bevp)->be_ops == &bufferevent_ops_pair)
#if defined(EVENT__HAVE_OPENSSL)
extern const struct bufferevent_ops bufferevent_ops_openssl;
#define BEV_IS_OPENSSL(bevp) ((bevp)->be_ops == &bufferevent_ops_openssl)
#else
#define BEV_IS_OPENSSL(bevp) 0
#endif
#ifdef _WIN32
extern const struct bufferevent_ops bufferevent_ops_async;
#define BEV_IS_ASYNC(bevp) ((bevp)->be_ops == &bufferevent_ops_async)

2
bufferevent_async.c
View File

@ -104,7 +104,7 @@ static inline struct bufferevent_async *
upcast(struct bufferevent *bev)
{
struct bufferevent_async *bev_a;
if (bev->be_ops != &bufferevent_ops_async)
if (!BEV_IS_ASYNC(bev))
return NULL;
bev_a = EVUTIL_UPCAST(bev, struct bufferevent_async, bev.bev);
return bev_a;

4
bufferevent_filter.c
View File

@ -118,11 +118,11 @@ static inline struct bufferevent_filtered *
upcast(struct bufferevent *bev)
{
struct bufferevent_filtered *bev_f;
if (bev->be_ops != &bufferevent_ops_filter)
if (!BEV_IS_FILTER(bev))
return NULL;
bev_f = (void*)( ((char*)bev) -
evutil_offsetof(struct bufferevent_filtered, bev.bev));
EVUTIL_ASSERT(bev_f->bev.bev.be_ops == &bufferevent_ops_filter);
EVUTIL_ASSERT(BEV_IS_FILTER(&bev_f->bev.bev));
return bev_f;
}

4
bufferevent_openssl.c
View File

@ -354,11 +354,11 @@ static inline struct bufferevent_openssl *
upcast(struct bufferevent *bev)
{
struct bufferevent_openssl *bev_o;
if (bev->be_ops != &bufferevent_ops_openssl)
if (!BEV_IS_OPENSSL(bev))
return NULL;
bev_o = (void*)( ((char*)bev) -
evutil_offsetof(struct bufferevent_openssl, bev.bev));
EVUTIL_ASSERT(bev_o->bev.bev.be_ops == &bufferevent_ops_openssl);
EVUTIL_ASSERT(BEV_IS_OPENSSL(&bev_o->bev.bev));
return bev_o;
}

4
bufferevent_pair.c
View File

@ -56,10 +56,10 @@ static inline struct bufferevent_pair *
upcast(struct bufferevent *bev)
{
struct bufferevent_pair *bev_p;
if (bev->be_ops != &bufferevent_ops_pair)
if (!BEV_IS_PAIR(bev))
return NULL;
bev_p = EVUTIL_UPCAST(bev, struct bufferevent_pair, bev.bev);
EVUTIL_ASSERT(bev_p->bev.bev.be_ops == &bufferevent_ops_pair);
EVUTIL_ASSERT(BEV_IS_PAIR(&bev_p->bev.bev));
return bev_p;
}

8
bufferevent_sock.c
View File

@ -607,7 +607,7 @@ be_socket_destruct(struct bufferevent *bufev)
struct bufferevent_private *bufev_p =
EVUTIL_UPCAST(bufev, struct bufferevent_private, bev);
evutil_socket_t fd;
EVUTIL_ASSERT(bufev->be_ops == &bufferevent_ops_socket);
EVUTIL_ASSERT(BEV_IS_SOCKET(bufev));
fd = event_get_fd(&bufev->ev_read);
@ -632,7 +632,7 @@ be_socket_setfd(struct bufferevent *bufev, evutil_socket_t fd)
EVUTIL_UPCAST(bufev, struct bufferevent_private, bev);
BEV_LOCK(bufev);
EVUTIL_ASSERT(bufev->be_ops == &bufferevent_ops_socket);
EVUTIL_ASSERT(BEV_IS_SOCKET(bufev));
event_del(&bufev->ev_read);
event_del(&bufev->ev_write);
@ -662,7 +662,7 @@ bufferevent_priority_set(struct bufferevent *bufev, int priority)
EVUTIL_UPCAST(bufev, struct bufferevent_private, bev);
BEV_LOCK(bufev);
if (bufev->be_ops != &bufferevent_ops_socket)
if (!BEV_IS_SOCKET(bufev))
goto done;
if (event_priority_set(&bufev->ev_read, priority) == -1)
@ -685,7 +685,7 @@ bufferevent_base_set(struct event_base *base, struct bufferevent *bufev)
int res = -1;
BEV_LOCK(bufev);
if (bufev->be_ops != &bufferevent_ops_socket)
if (!BEV_IS_SOCKET(bufev))
goto done;
bufev->ev_base = base;