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authorAndrew Tridgell <tridge@samba.org>2005-01-23 11:49:15 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:09:08 -0500
commitfd62df64188c0f992876c72fdda8a6da5dba3090 (patch)
treea5f212e796816c648a3a0e49caa457eb597e292b
parent54eff1435dd69d489ae35834f17989f79011418e (diff)
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r4943: Smplified the events handling code a lot. The first source of
complexity was that events didn't automatically cleanup themselves. This was because the events code was written before we had talloc destructors, so you needed to call event_remove_XX() to clean the event out of the event lists from every piece of code that used events. I have now added automatic event destructors, which in turn allowed me to simplify a lot of the calling code. The 2nd source of complexity was caused by the ref_count, which was needed to cope with event handlers destroying events while handling them, which meant the linked lists became invalid, so the ref_count ws used to mark events for later destruction. The new system is much simpler. I now have a ev->destruction_count, which is incremented in all event destructors. The event dispatch code checks for changes to this and handles it. (This used to be commit a3c7417cfeab429ffb22d5546b205818f531a7b4)
-rw-r--r--source4/include/events.h15
-rw-r--r--source4/lib/events.c170
-rw-r--r--source4/lib/messaging/messaging.c21
-rw-r--r--source4/libcli/nbt/nbtsocket.c14
-rw-r--r--source4/libcli/raw/clisocket.c20
-rw-r--r--source4/libcli/raw/clitransport.c2
-rw-r--r--source4/libcli/resolve/host.c4
-rw-r--r--source4/ntvfs/posix/pvfs_wait.c2
-rw-r--r--source4/rpc_server/echo/rpc_echo.c10
-rw-r--r--source4/smbd/service.c13
10 files changed, 113 insertions, 158 deletions
diff --git a/source4/include/events.h b/source4/include/events.h
index ae18bd8bc4..51a78306bb 100644
--- a/source4/include/events.h
+++ b/source4/include/events.h
@@ -25,41 +25,41 @@
struct event_context {
/* list of filedescriptor events */
struct fd_event {
+ struct event_context *event_ctx;
struct fd_event *next, *prev;
int fd;
uint16_t flags; /* see EVENT_FD_* flags */
void (*handler)(struct event_context *ev, struct fd_event *fde,
struct timeval t, uint16_t flags);
void *private;
- int ref_count;
} *fd_events;
/* list of timed events */
struct timed_event {
+ struct event_context *event_ctx;
struct timed_event *next, *prev;
struct timeval next_event;
void (*handler)(struct event_context *ev, struct timed_event *te,
struct timeval t);
void *private;
- int ref_count;
} *timed_events;
/* list of loop events - called on each select() */
struct loop_event {
+ struct event_context *event_ctx;
struct loop_event *next, *prev;
void (*handler)(struct event_context *ev, struct loop_event *le,
struct timeval t);
void *private;
- int ref_count;
} *loop_events;
/* list of signal events */
struct signal_event {
+ struct event_context *event_ctx;
struct signal_event *next, *prev;
int signum;
void (*handler)(struct event_context *ev, struct signal_event *se, int signum, void *sigarg);
void *private;
- int ref_count;
} *signal_events;
/* the maximum file descriptor number in fd_events */
@@ -74,6 +74,13 @@ struct event_context {
/* This is the talloc parent for all concrete event structures in this
* event context. This makes merging easy. */
void *events;
+
+ /* this is changed by the destructors for any event type. It
+ is used to detect event destruction by event handlers,
+ which means the code that is calling all event handles
+ needs to assume that the linked list is no longer valid
+ */
+ uint32_t destruction_count;
};
diff --git a/source4/lib/events.c b/source4/lib/events.c
index 54ec4ef927..6f0bdb4fdd 100644
--- a/source4/lib/events.c
+++ b/source4/lib/events.c
@@ -104,8 +104,7 @@ static void calc_maxfd(struct event_context *ev)
struct fd_event *e;
ev->maxfd = 0;
for (e=ev->fd_events; e; e=e->next) {
- if (e->ref_count &&
- e->fd > ev->maxfd) {
+ if (e->fd > ev->maxfd) {
ev->maxfd = e->fd;
}
}
@@ -117,7 +116,8 @@ static void calc_maxfd(struct event_context *ev)
this is used by modules that need to call on the events of a lower module
*/
-struct event_context *event_context_merge(struct event_context *ev, struct event_context *ev2)
+struct event_context *event_context_merge(struct event_context *ev,
+ struct event_context *ev2)
{
DLIST_CONCATENATE(ev->fd_events, ev2->fd_events, struct fd_event *);
DLIST_CONCATENATE(ev->timed_events, ev2->timed_events, struct timed_event *);
@@ -136,29 +136,42 @@ struct event_context *event_context_merge(struct event_context *ev, struct event
return ev;
}
+/* to mark the ev->maxfd invalid
+ * this means we need to recalculate it
+ */
+#define EVENT_INVALID_MAXFD (-1)
+
+
+static int event_fd_destructor(void *ptr)
+{
+ struct fd_event *fde = talloc_get_type(ptr, struct fd_event);
+ if (fde->event_ctx->maxfd == fde->fd) {
+ fde->event_ctx->maxfd = EVENT_INVALID_MAXFD;
+ }
+ DLIST_REMOVE(fde->event_ctx->fd_events, fde);
+ fde->event_ctx->destruction_count++;
+ return 0;
+}
/*
add a fd based event
return NULL on failure (memory allocation error)
*/
-struct fd_event *event_add_fd(struct event_context *ev, struct fd_event *e)
+struct fd_event *event_add_fd(struct event_context *ev, struct fd_event *e0)
{
- e = talloc_memdup(ev->events, e, sizeof(*e));
+ struct fd_event *e = talloc(ev->events, struct fd_event);
if (!e) return NULL;
+ *e = *e0;
DLIST_ADD(ev->fd_events, e);
- e->ref_count = 1;
+ e->event_ctx = ev;
if (e->fd > ev->maxfd) {
ev->maxfd = e->fd;
}
+ talloc_set_destructor(e, event_fd_destructor);
return e;
}
-/* to mark the ev->maxfd invalid
- * this means we need to recalculate it
- */
-#define EVENT_INVALID_MAXFD (-1)
-
/*
remove a fd based event
the event to remove is matched by looking at the handler
@@ -167,16 +180,8 @@ struct fd_event *event_add_fd(struct event_context *ev, struct fd_event *e)
*/
BOOL event_remove_fd(struct event_context *ev, struct fd_event *e1)
{
- struct fd_event *e;
- for (e=ev->fd_events; e; e=e->next) {
- if (e->ref_count &&
- e->fd == e1->fd &&
- e->handler == e1->handler) {
- e->ref_count--;
- return True;
- }
- }
- return False;
+ talloc_free(e1);
+ return True;
}
/*
@@ -184,10 +189,13 @@ BOOL event_remove_fd(struct event_context *ev, struct fd_event *e1)
*/
void event_remove_fd_all(struct event_context *ev, int fd)
{
- struct fd_event *e;
- for (e=ev->fd_events; e; e=e->next) {
- if (e->ref_count && e->fd == fd) {
- e->ref_count--;
+ struct fd_event *e = ev->fd_events;
+ /* be careful to cope with extra reference counts on events */
+ while (e) {
+ if (talloc_free(ev->fd_events) == 0) {
+ e = ev->fd_events;
+ } else {
+ e = e->next;
}
}
}
@@ -197,26 +205,35 @@ void event_remove_fd_all(struct event_context *ev, int fd)
*/
void event_remove_fd_all_handler(struct event_context *ev, void *handler)
{
- struct fd_event *e;
- for (e=ev->fd_events; e; e=e->next) {
- if (e->ref_count &&
- handler == (void *)e->handler) {
- e->ref_count--;
+ struct fd_event *e, *next;
+ for (e=ev->fd_events; e; e=next) {
+ next = e->next;
+ if (handler == (void *)e->handler) {
+ talloc_free(e);
}
}
}
+static int event_timed_destructor(void *ptr)
+{
+ struct timed_event *te = talloc_get_type(ptr, struct timed_event);
+ DLIST_REMOVE(te->event_ctx->timed_events, te);
+ te->event_ctx->destruction_count++;
+ return 0;
+}
/*
add a timed event
return NULL on failure (memory allocation error)
*/
-struct timed_event *event_add_timed(struct event_context *ev, struct timed_event *e)
+struct timed_event *event_add_timed(struct event_context *ev, struct timed_event *e0)
{
- e = talloc_memdup(ev->events, e, sizeof(*e));
+ struct timed_event *e = talloc(ev->events, struct timed_event);
if (!e) return NULL;
- e->ref_count = 1;
+ *e = *e0;
+ e->event_ctx = ev;
DLIST_ADD(ev->timed_events, e);
+ talloc_set_destructor(e, event_timed_destructor);
return e;
}
@@ -224,28 +241,32 @@ struct timed_event *event_add_timed(struct event_context *ev, struct timed_event
remove a timed event
return False on failure (event not found)
*/
-BOOL event_remove_timed(struct event_context *ev, struct timed_event *e1)
+BOOL event_remove_timed(struct event_context *ev, struct timed_event *e)
{
- struct timed_event *e;
- for (e=ev->timed_events; e; e=e->next) {
- if (e->ref_count && e == e1) {
- e->ref_count--;
- return True;
- }
- }
- return False;
+ talloc_free(e);
+ return True;
+}
+
+static int event_loop_destructor(void *ptr)
+{
+ struct loop_event *le = talloc_get_type(ptr, struct loop_event);
+ DLIST_REMOVE(le->event_ctx->loop_events, le);
+ le->event_ctx->destruction_count++;
+ return 0;
}
/*
add a loop event
return NULL on failure (memory allocation error)
*/
-struct loop_event *event_add_loop(struct event_context *ev, struct loop_event *e)
+struct loop_event *event_add_loop(struct event_context *ev, struct loop_event *e0)
{
- e = talloc_memdup(ev->events, e, sizeof(*e));
+ struct loop_event *e = talloc(ev->events, struct loop_event);
if (!e) return NULL;
- e->ref_count = 1;
+ *e = *e0;
+ e->event_ctx = ev;
DLIST_ADD(ev->loop_events, e);
+ talloc_set_destructor(e, event_loop_destructor);
return e;
}
@@ -254,17 +275,10 @@ struct loop_event *event_add_loop(struct event_context *ev, struct loop_event *e
the event to remove is matched only on the handler function
return False on failure (memory allocation error)
*/
-BOOL event_remove_loop(struct event_context *ev, struct loop_event *e1)
+BOOL event_remove_loop(struct event_context *ev, struct loop_event *e)
{
- struct loop_event *e;
- for (e=ev->loop_events; e; e=e->next) {
- if (e->ref_count &&
- e->handler == e1->handler) {
- e->ref_count--;
- return True;
- }
- }
- return False;
+ talloc_free(e);
+ return True;
}
@@ -288,6 +302,7 @@ int event_loop_once(struct event_context *ev)
struct timed_event *te;
int selrtn;
struct timeval tval, t;
+ uint32_t destruction_count = ev->destruction_count;
t = timeval_current();
@@ -295,14 +310,8 @@ int event_loop_once(struct event_context *ev)
event to remove itself */
for (le=ev->loop_events;le;) {
struct loop_event *next = le->next;
- if (le->ref_count == 0) {
- DLIST_REMOVE(ev->loop_events, le);
- talloc_free(le);
- } else {
- le->ref_count++;
- le->handler(ev, le, t);
- le->ref_count--;
- }
+ le->handler(ev, le, t);
+ if (destruction_count != ev->destruction_count) break;
le = next;
}
@@ -312,19 +321,11 @@ int event_loop_once(struct event_context *ev)
/* setup any fd events */
for (fe=ev->fd_events; fe; ) {
struct fd_event *next = fe->next;
- if (fe->ref_count == 0) {
- DLIST_REMOVE(ev->fd_events, fe);
- if (ev->maxfd == fe->fd) {
- ev->maxfd = EVENT_INVALID_MAXFD;
- }
- talloc_free(fe);
- } else {
- if (fe->flags & EVENT_FD_READ) {
- FD_SET(fe->fd, &r_fds);
- }
- if (fe->flags & EVENT_FD_WRITE) {
- FD_SET(fe->fd, &w_fds);
- }
+ if (fe->flags & EVENT_FD_READ) {
+ FD_SET(fe->fd, &r_fds);
+ }
+ if (fe->flags & EVENT_FD_WRITE) {
+ FD_SET(fe->fd, &w_fds);
}
fe = next;
}
@@ -379,10 +380,11 @@ int event_loop_once(struct event_context *ev)
uint16_t flags = 0;
if (FD_ISSET(fe->fd, &r_fds)) flags |= EVENT_FD_READ;
if (FD_ISSET(fe->fd, &w_fds)) flags |= EVENT_FD_WRITE;
- if (fe->ref_count && flags) {
- fe->ref_count++;
+ if (flags) {
fe->handler(ev, fe, t, flags);
- fe->ref_count--;
+ if (destruction_count != ev->destruction_count) {
+ break;
+ }
}
}
}
@@ -391,13 +393,11 @@ int event_loop_once(struct event_context *ev)
/* call any timed events that are now due */
for (te=ev->timed_events;te;) {
struct timed_event *next = te->next;
- if (te->ref_count == 0) {
- DLIST_REMOVE(ev->timed_events, te);
- talloc_free(te);
- } else if (timeval_compare(&te->next_event, &t) >= 0) {
- te->ref_count++;
+ if (timeval_compare(&te->next_event, &t) >= 0) {
te->handler(ev, te, t);
- te->ref_count--;
+ if (destruction_count != ev->destruction_count) {
+ break;
+ }
if (timeval_compare(&te->next_event, &t) >= 0) {
/* the handler didn't set a time for the
next event - remove the event */
diff --git a/source4/lib/messaging/messaging.c b/source4/lib/messaging/messaging.c
index 84c9adc874..beceb342c9 100644
--- a/source4/lib/messaging/messaging.c
+++ b/source4/lib/messaging/messaging.c
@@ -189,17 +189,6 @@ static void messaging_recv_handler(struct event_context *ev, struct fd_event *fd
}
/*
- destroy a messaging record
-*/
-static int rec_destructor(void *ptr)
-{
- struct messaging_rec *rec = ptr;
- struct messaging_context *msg = rec->msg;
- event_remove_fd(msg->event.ev, rec->fde);
- return 0;
-}
-
-/*
handle a new incoming connection
*/
static void messaging_listen_handler(struct event_context *ev, struct fd_event *fde,
@@ -233,7 +222,7 @@ static void messaging_listen_handler(struct event_context *ev, struct fd_event *
rec->fde = event_add_fd(msg->event.ev, &fde2);
- talloc_set_destructor(rec, rec_destructor);
+ talloc_steal(rec, rec->fde);
}
/*
@@ -370,8 +359,7 @@ static void messaging_backoff_handler(struct event_context *ev, struct timed_eve
fde.handler = messaging_send_handler;
rec->fde = event_add_fd(msg->event.ev, &fde);
-
- talloc_set_destructor(rec, rec_destructor);
+ talloc_steal(rec, rec->fde);
messaging_send_handler(msg->event.ev, rec->fde, timeval_zero(), EVENT_FD_WRITE);
}
@@ -435,8 +423,7 @@ NTSTATUS messaging_send(struct messaging_context *msg, servid_t server, uint32_t
fde.handler = messaging_send_handler;
rec->fde = event_add_fd(msg->event.ev, &fde);
-
- talloc_set_destructor(rec, rec_destructor);
+ talloc_steal(rec, rec->fde);
messaging_send_handler(msg->event.ev, rec->fde, timeval_zero(), EVENT_FD_WRITE);
@@ -464,7 +451,6 @@ NTSTATUS messaging_send_ptr(struct messaging_context *msg, servid_t server,
static int messaging_destructor(void *ptr)
{
struct messaging_context *msg = ptr;
- event_remove_fd(msg->event.ev, msg->event.fde);
unlink(msg->path);
return 0;
}
@@ -516,6 +502,7 @@ struct messaging_context *messaging_init(TALLOC_CTX *mem_ctx, servid_t server_id
msg->event.ev = talloc_reference(msg,ev);
msg->event.fde = event_add_fd(ev, &fde);
+ talloc_steal(msg, msg->event.fde);
talloc_set_destructor(msg, messaging_destructor);
diff --git a/source4/libcli/nbt/nbtsocket.c b/source4/libcli/nbt/nbtsocket.c
index 664e6fdce0..d970f8e4e0 100644
--- a/source4/libcli/nbt/nbtsocket.c
+++ b/source4/libcli/nbt/nbtsocket.c
@@ -29,16 +29,6 @@
#define NBT_MAX_REPLIES 1000
/*
- destroy a nbt socket
-*/
-static int nbtsock_destructor(void *ptr)
-{
- struct nbt_name_socket *nbtsock = talloc_get_type(ptr, struct nbt_name_socket);
- event_remove_fd(nbtsock->event_ctx, nbtsock->fde);
- return 0;
-}
-
-/*
destroy a pending request
*/
static int nbt_name_request_destructor(void *ptr)
@@ -56,7 +46,6 @@ static int nbt_name_request_destructor(void *ptr)
req->request->name_trn_id = 0;
}
if (req->te) {
- event_remove_timed(req->nbtsock->event_ctx, req->te);
req->te = NULL;
}
if (req->nbtsock->send_queue == NULL) {
@@ -279,7 +268,7 @@ struct nbt_name_socket *nbt_name_socket_init(TALLOC_CTX *mem_ctx,
fde.private = nbtsock;
nbtsock->fde = event_add_fd(nbtsock->event_ctx, &fde);
- talloc_set_destructor(nbtsock, nbtsock_destructor);
+ talloc_steal(nbtsock, nbtsock->fde);
return nbtsock;
@@ -356,6 +345,7 @@ struct nbt_name_request *nbt_name_request_send(struct nbt_name_socket *nbtsock,
te.handler = nbt_name_socket_timeout;
te.private = req;
req->te = event_add_timed(nbtsock->event_ctx, &te);
+ talloc_steal(req, req->te);
talloc_set_destructor(req, nbt_name_request_destructor);
diff --git a/source4/libcli/raw/clisocket.c b/source4/libcli/raw/clisocket.c
index 9249f453e8..847f5c1b0a 100644
--- a/source4/libcli/raw/clisocket.c
+++ b/source4/libcli/raw/clisocket.c
@@ -37,16 +37,6 @@ struct clisocket_connect {
};
-static int smbcli_sock_destructor(void *ptr)
-{
- struct smbcli_socket *sock = talloc_get_type(ptr, struct smbcli_socket);
-
- if (sock->event.fde && sock->event.ctx) {
- event_remove_fd(sock->event.ctx, sock->event.fde);
- }
- return 0;
-}
-
/*
create a smbcli_socket context
The event_ctx is optional - if not supplied one will be created
@@ -71,8 +61,6 @@ struct smbcli_socket *smbcli_sock_init(TALLOC_CTX *mem_ctx,
return NULL;
}
- talloc_set_destructor(sock, smbcli_sock_destructor);
-
return sock;
}
@@ -134,11 +122,7 @@ static NTSTATUS smbcli_sock_connect_one(struct smbcli_socket *sock,
talloc_free(sock->sock);
sock->sock = NULL;
}
-
- if (sock->event.fde) {
- event_remove_fd(sock->event.ctx, sock->event.fde);
- sock->event.fde = NULL;
- }
+ talloc_free(sock->event.fde);
status = socket_create("ip", SOCKET_TYPE_STREAM, &sock->sock, 0);
if (!NT_STATUS_IS_OK(status)) {
@@ -155,6 +139,8 @@ static NTSTATUS smbcli_sock_connect_one(struct smbcli_socket *sock,
fde.private = sock;
sock->event.fde = event_add_fd(sock->event.ctx, &fde);
+ talloc_steal(sock, sock->event.fde);
+
sock->port = port;
set_blocking(fde.fd, False);
diff --git a/source4/libcli/raw/clitransport.c b/source4/libcli/raw/clitransport.c
index 918f18fa40..b053b362ca 100644
--- a/source4/libcli/raw/clitransport.c
+++ b/source4/libcli/raw/clitransport.c
@@ -55,7 +55,6 @@ static int transport_destructor(void *ptr)
struct smbcli_transport *transport = ptr;
smbcli_transport_dead(transport);
- event_remove_timed(transport->socket->event.ctx, transport->socket->event.te);
return 0;
}
@@ -323,6 +322,7 @@ void smbcli_transport_idle_handler(struct smbcli_transport *transport,
te.handler = idle_handler;
te.private = transport;
transport->socket->event.te = event_add_timed(transport->socket->event.ctx, &te);
+ talloc_steal(transport, transport->socket->event.te);
}
/*
diff --git a/source4/libcli/resolve/host.c b/source4/libcli/resolve/host.c
index 2cc0c1705f..b9aa1aa272 100644
--- a/source4/libcli/resolve/host.c
+++ b/source4/libcli/resolve/host.c
@@ -57,9 +57,6 @@ static int host_destructor(void *ptr)
if (state->child != (pid_t)-1) {
kill(state->child, SIGTERM);
}
- if (state->fde) {
- event_remove_fd(state->event_ctx, state->fde);
- }
return 0;
}
@@ -174,6 +171,7 @@ struct smbcli_composite *resolve_name_host_send(struct nbt_name *name,
close(fd[1]);
goto failed;
}
+ talloc_steal(state, state->fde);
/* signal handling in posix really sucks - doing this in a library
affects the whole app, but what else to do?? */
diff --git a/source4/ntvfs/posix/pvfs_wait.c b/source4/ntvfs/posix/pvfs_wait.c
index 4b757e0be1..e4175ca8cc 100644
--- a/source4/ntvfs/posix/pvfs_wait.c
+++ b/source4/ntvfs/posix/pvfs_wait.c
@@ -105,7 +105,6 @@ static int pvfs_wait_destructor(void *ptr)
{
struct pvfs_wait *pwait = ptr;
messaging_deregister(pwait->msg_ctx, pwait->msg_type, pwait);
- event_remove_timed(pwait->ev, pwait->te);
DLIST_REMOVE(pwait->pvfs->wait_list, pwait);
return 0;
}
@@ -145,6 +144,7 @@ static int pvfs_wait_destructor(void *ptr)
te.handler = pvfs_wait_timeout;
te.private = pwait;
pwait->te = event_add_timed(pwait->ev, &te);
+ talloc_steal(pwait, pwait->te);
/* register with the messaging subsystem for this message
type */
diff --git a/source4/rpc_server/echo/rpc_echo.c b/source4/rpc_server/echo/rpc_echo.c
index 164e2d588f..2b4f31482d 100644
--- a/source4/rpc_server/echo/rpc_echo.c
+++ b/source4/rpc_server/echo/rpc_echo.c
@@ -135,13 +135,6 @@ static void echo_TestSleep_handler(struct event_context *ev, struct timed_event
}
}
-static int echo_TestSleep_destructor(void *ptr)
-{
- struct echo_TestSleep_private *p = ptr;
- event_remove_timed(p->dce_call->event_ctx, p->te);
- return 0;
-}
-
static long echo_TestSleep(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx, struct echo_TestSleep *r)
{
struct timed_event te;
@@ -170,8 +163,7 @@ static long echo_TestSleep(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_c
if (!p->te) {
return 0;
}
-
- talloc_set_destructor(p, echo_TestSleep_destructor);
+ talloc_steal(p, p->te);
dce_call->state_flags |= DCESRV_CALL_STATE_FLAG_ASYNC;
return 0;
diff --git a/source4/smbd/service.c b/source4/smbd/service.c
index 40a2a4b506..7067a26e7a 100644
--- a/source4/smbd/service.c
+++ b/source4/smbd/service.c
@@ -171,6 +171,7 @@ struct server_stream_socket *service_setup_stream_socket(struct server_service *
}
talloc_steal(stream_socket, sock);
+ talloc_steal(stream_socket, stream_socket->event.fde);
if (stream_socket->stream.ops->socket_init) {
stream_socket->stream.ops->socket_init(stream_socket);
@@ -194,15 +195,6 @@ static int server_connection_destructor(void *ptr)
conn->stream_socket->stream.ops->close_connection(conn, "shutdown");
}
- if (conn->event.fde) {
- event_remove_fd(conn->event.ctx, conn->event.fde);
- conn->event.fde = NULL;
- }
- if (conn->event.idle) {
- event_remove_timed(conn->event.ctx, conn->event.idle);
- conn->event.idle = NULL;
- }
-
return 0;
}
@@ -250,6 +242,9 @@ struct server_connection *server_setup_connection(struct event_context *ev,
srv_conn->event.fde = event_add_fd(ev,&fde);
srv_conn->event.idle = event_add_timed(ev,&idle);
+ talloc_steal(srv_conn, srv_conn->event.fde);
+ talloc_steal(srv_conn, srv_conn->event.idle);
+
talloc_set_destructor(srv_conn, server_connection_destructor);
if (!socket_check_access(sock, "smbd", lp_hostsallow(-1), lp_hostsdeny(-1))) {