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Diffstat (limited to 'adb/fdevent.h')
-rw-r--r-- | adb/fdevent.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/adb/fdevent.h b/adb/fdevent.h new file mode 100644 index 000000000..7a442d46c --- /dev/null +++ b/adb/fdevent.h @@ -0,0 +1,74 @@ +/* + * 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 + +/* events that may be observed */ +#define FDE_READ 0x0001 +#define FDE_WRITE 0x0002 +#define FDE_ERROR 0x0004 + +/* 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 +*/ +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); + +/* loop forever, handling events. +*/ +void fdevent_loop(); + +struct fdevent +{ + fdevent *next; + fdevent *prev; + + int fd; + unsigned short state; + unsigned short events; + + fd_func func; + void *arg; +}; + + +#endif |