AC_CHECK_FUNCS(epoll_create)
if test x"$ac_cv_header_sys_epoll_h" = x"yes" -a x"$ac_cv_func_epoll_create" = x"yes";then
SMB_ENABLE(EVENTS_EPOLL,YES)
+ AC_DEFINE(HAVE_EVENTS_EPOLL, 1, [Whether epoll is available])
# check for native Linux AIO interface
AC_CHECK_HEADERS(libaio.h)
/* list of registered event backends */
static struct event_ops_list *event_backends;
+static char *event_default_backend = NULL;
+
/*
register an events backend
*/
return True;
}
+/*
+ set the default event backend
+ */
+void event_set_default_backend(const char *backend)
+{
+ if (event_default_backend) free(event_default_backend);
+ event_default_backend = strdup(backend);
+}
+
/*
initialise backends if not already done
*/
run_init_functions(shared_init);
#else
bool events_standard_init(void);
+ bool events_select_init(void);
+ events_select_init();
events_standard_init();
+#if HAVE_EVENTS_EPOLL
+ {
+ bool events_epoll_init(void);
+ events_epoll_init();
+ }
+#endif
#endif
}
name = lp_parm_string(-1, "event", "backend");
}
#endif
+ if (name == NULL) {
+ name = event_default_backend;
+ }
if (name == NULL) {
name = "standard";
}
/*
add a fd based event
return NULL on failure (memory allocation error)
+
+ if flags contains EVENT_FD_AUTOCLOSE then the fd will be closed when
+ the returned fd_event context is freed
*/
struct fd_event *event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx,
int fd, uint16_t flags, event_fd_handler_t handler,
struct event_context *event_context_init(TALLOC_CTX *mem_ctx);
struct event_context *event_context_init_byname(TALLOC_CTX *mem_ctx, const char *name);
const char **event_backend_list(TALLOC_CTX *mem_ctx);
+void event_set_default_backend(const char *backend);
struct fd_event *event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx,
int fd, uint16_t flags, event_fd_handler_t handler,
/* bits for file descriptor event flags */
#define EVENT_FD_READ 1
#define EVENT_FD_WRITE 2
+#define EVENT_FD_AUTOCLOSE 4
#define EVENT_FD_WRITEABLE(fde) \
event_set_fd_flags(fde, event_get_fd_flags(fde) | EVENT_FD_WRITE)
epoll_del_event(aio_ev, fde);
+ if (fde->flags & EVENT_FD_AUTOCLOSE) {
+ close(fde->fd);
+ fde->fd = -1;
+ }
+
return 0;
}
ZERO_STRUCT(event);
event.events = epoll_map_flags(fde->flags);
event.data.ptr = fde;
- epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_DEL, fde->fd, &event);
+ if (epoll_ctl(epoll_ev->epoll_fd, EPOLL_CTL_DEL, fde->fd, &event) != 0) {
+ DEBUG(0,("epoll_del_event failed! probable early close bug (%s)\n", strerror(errno)));
+ }
fde->additional_flags &= ~EPOLL_ADDITIONAL_FD_FLAG_HAS_EVENT;
}
static int epoll_event_loop(struct epoll_event_context *epoll_ev, struct timeval *tvalp)
{
int ret, i;
-#define MAXEVENTS 8
+#define MAXEVENTS 32
struct epoll_event events[MAXEVENTS];
uint32_t destruction_count = ++epoll_ev->destruction_count;
int timeout = -1;
epoll_del_event(epoll_ev, fde);
+ if (fde->flags & EVENT_FD_AUTOCLOSE) {
+ close(fde->fd);
+ fde->fd = -1;
+ }
+
return 0;
}
if (fde->flags & EVENT_FD_WRITE)
oop->cancel_fd(oop, fde->fd, OOP_WRITE);
+ if (fde->flags & EVENT_FD_AUTOCLOSE) {
+ close(fde->fd);
+ fde->fd = -1;
+ }
+
return 0;
}
DLIST_REMOVE(select_ev->fd_events, fde);
select_ev->destruction_count++;
+ if (fde->flags & EVENT_FD_AUTOCLOSE) {
+ close(fde->fd);
+ fde->fd = -1;
+ }
+
return 0;
}
#include "includes.h"
#include "system/filesys.h"
-#include "system/select.h" /* needed for WITH_EPOLL */
+#include "system/select.h" /* needed for HAVE_EVENTS_EPOLL */
#include "lib/util/dlinklist.h"
#include "lib/events/events.h"
#include "lib/events/events_internal.h"
};
/* use epoll if it is available */
-#if WITH_EPOLL
+#if HAVE_EVENTS_EPOLL
/*
called when a epoll call fails, and we should fallback
to using select
timeout = ((tvalp->tv_usec+999) / 1000) + (tvalp->tv_sec*1000);
}
- if (epoll_ev->ev->num_signal_handlers &&
- common_event_check_signal(epoll_ev->ev)) {
+ if (std_ev->ev->num_signal_handlers &&
+ common_event_check_signal(std_ev->ev)) {
return 0;
}
ret = epoll_wait(std_ev->epoll_fd, events, MAXEVENTS, timeout);
- if (ret == -1 && errno == EINTR && epoll_ev->ev->num_signal_handlers) {
- if (common_event_check_signal(epoll_ev->ev)) {
+ if (ret == -1 && errno == EINTR && std_ev->ev->num_signal_handlers) {
+ if (common_event_check_signal(std_ev->ev)) {
return 0;
}
}
epoll_del_event(std_ev, fde);
+ if (fde->flags & EVENT_FD_AUTOCLOSE) {
+ close(fde->fd);
+ fde->fd = -1;
+ }
+
return 0;
}
--- /dev/null
+EVENTS_OBJ="lib/events/events.o lib/events/events_select.o lib/events/events_signal.o lib/events/events_timed.o lib/events/events_standard.o"
+
+AC_CHECK_HEADERS(sys/epoll.h)
+AC_CHECK_FUNCS(epoll_create)
+
+if test x"$ac_cv_header_sys_epoll_h" = x"yes" -a x"$ac_cv_func_epoll_create" = x"yes"; then
+ EVENTS_OBJ="$EVENTS_OBJ lib/events/events_epoll.o"
+ AC_DEFINE(HAVE_EVENTS_EPOLL, 1, [Whether epoll available])
+fi
+
+AC_SUBST(EVENTS_OBJ)