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authorDoug Zongker <dougz@android.com>2012-01-10 00:16:13 +0100
committerDoug Zongker <dougz@android.com>2012-01-18 19:35:28 +0100
commite83b7cf8f1bad5b334b6352d3b850d8555530a9a (patch)
tree3a139cf549726cf66f41ef4899a21cde379a3648 /minadbd/fdevent.h
parentfix verifier test (diff)
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Diffstat (limited to 'minadbd/fdevent.h')
-rw-r--r--minadbd/fdevent.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/minadbd/fdevent.h b/minadbd/fdevent.h
new file mode 100644
index 000000000..a0ebe2a7e
--- /dev/null
+++ b/minadbd/fdevent.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __FDEVENT_H
+#define __FDEVENT_H
+
+#include <stdint.h> /* for int64_t */
+
+/* events that may be observed */
+#define FDE_READ 0x0001
+#define FDE_WRITE 0x0002
+#define FDE_ERROR 0x0004
+#define FDE_TIMEOUT 0x0008
+
+/* features that may be set (via the events set/add/del interface) */
+#define FDE_DONT_CLOSE 0x0080
+
+typedef struct fdevent fdevent;
+
+typedef void (*fd_func)(int fd, unsigned events, void *userdata);
+
+/* Allocate and initialize a new fdevent object
+ * Note: use FD_TIMER as 'fd' to create a fd-less object
+ * (used to implement timers).
+*/
+fdevent *fdevent_create(int fd, fd_func func, void *arg);
+
+/* Uninitialize and deallocate an fdevent object that was
+** created by fdevent_create()
+*/
+void fdevent_destroy(fdevent *fde);
+
+/* Initialize an fdevent object that was externally allocated
+*/
+void fdevent_install(fdevent *fde, int fd, fd_func func, void *arg);
+
+/* Uninitialize an fdevent object that was initialized by
+** fdevent_install()
+*/
+void fdevent_remove(fdevent *item);
+
+/* Change which events should cause notifications
+*/
+void fdevent_set(fdevent *fde, unsigned events);
+void fdevent_add(fdevent *fde, unsigned events);
+void fdevent_del(fdevent *fde, unsigned events);
+
+void fdevent_set_timeout(fdevent *fde, int64_t timeout_ms);
+
+/* loop forever, handling events.
+*/
+void fdevent_loop();
+
+struct fdevent
+{
+ fdevent *next;
+ fdevent *prev;
+
+ int fd;
+ int force_eof;
+
+ unsigned short state;
+ unsigned short events;
+
+ fd_func func;
+ void *arg;
+};
+
+
+#endif