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- /* Copyright (C) 2014 Stony Brook University
- This file is part of Graphene Library OS.
- Graphene Library OS is free software: you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public License
- as published by the Free Software Foundation, either version 3 of the
- License, or (at your option) any later version.
- Graphene Library OS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- /*
- * pal_host.h
- *
- * This file contains definition of PAL host ABI.
- */
- #ifndef PAL_HOST_H
- #define PAL_HOST_H
- #ifndef IN_PAL
- # error "cannot be included outside PAL"
- #endif
- typedef struct mutex_handle {
- int unused;
- } PAL_LOCK;
- #define LOCK_INIT {}
- #define INIT_LOCK(lock) do {} while (0)
- #define MAX_FDS 3
- typedef struct pal_handle
- {
- /* TSAI: Here we define the internal types of PAL_HANDLE
- * in PAL design, user has not to access the content inside the
- * handle, also there is no need to allocate the internal
- * handles, so we hide the type name of these handles on purpose.
- */
- PAL_HDR hdr;
- union {
- struct {
- PAL_IDX fds[MAX_FDS];
- } generic;
- /* DP: Here we just define a placeholder fd; place your details here.
- * Not every type requires an fd either - this is up to your
- * host-specific code.
- */
- struct {
- PAL_IDX fd;
- } file;
- struct {
- PAL_IDX fd;
- } pipe;
- struct {
- PAL_IDX fd;
- } pipeprv;
- struct {
- PAL_IDX fd;
- PAL_IDX dev_type;
- } dev;
- struct {
- PAL_IDX fd;
- } dir;
- struct {
- PAL_IDX fd;
- } gipc;
- struct {
- PAL_IDX fd;
- } sock;
- struct {
- PAL_IDX unused;
- } process;
- struct {
- PAL_IDX unused;
- } mcast;
- struct {
- PAL_IDX unused;
- } thread;
- struct {
- PAL_IDX fd;
- } mutex;
- struct {
- PAL_IDX fd;
- } event;
- };
- } * PAL_HANDLE;
- #endif /* PAL_HOST_H */
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