ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2025-06-17 06:38:28 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

os: introduce C-API to Genode services

Browse Source 
This commit introduces a C-API to the Uplink session, as well as to
serve as a Block service. It can be used by drivers ported from
C-only projects, like the Linux kernel, or BSD kernels for instance.

Fix #4226
This commit is contained in:
Stefan Kalkowski
2021-07-20 11:38:27 +02:00
committed by Christian Helmuth
parent 1a526e73a3
commit ee045a68cc
7 changed files with 937 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
repos/os/include/genode_c_api/base.h Normal file
View File

@ -0,0 +1,79 @@
/*
* \brief C interface to Genode's base types
* \author Norman Feske
* \date 2021-07-06
*/
/*
* Copyright (C) 2006-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#ifndef _INCLUDE__GENODE_C_API__BASE_H_
#define _INCLUDE__GENODE_C_API__BASE_H_
#ifdef __cplusplus
extern "C" {
#endif
/**********************************************
** Forward-declared types used in the C API **
**********************************************/
struct genode_env;
struct genode_allocator;
struct genode_signal_handler;
struct genode_attached_dataspace;
#ifdef __cplusplus
} /* extern "C" */
#endif
/**********************************************************************
** Mapping between C types and their corresponding Genode C++ types **
**********************************************************************/
#ifdef __cplusplus
#include <base/env.h>
#include <base/allocator.h>
#include <base/attached_dataspace.h>
struct genode_env : Genode::Env { };
struct genode_allocator : Genode::Allocator { };
struct genode_signal_handler : Genode::Signal_dispatcher_base { };
struct genode_attached_dataspace : Genode::Attached_dataspace { };
static inline auto genode_env_ptr(Genode::Env &env)
{
return static_cast<genode_env *>(&env);
}
static inline auto genode_allocator_ptr(Genode::Allocator &alloc)
{
return static_cast<genode_allocator *>(&alloc);
}
static inline auto genode_signal_handler_ptr(Genode::Signal_dispatcher_base &sigh)
{
return static_cast<genode_signal_handler *>(&sigh);
}
static inline Genode::Signal_context_capability cap(genode_signal_handler *sigh_ptr)
{
Genode::Signal_dispatcher_base *dispatcher_ptr = sigh_ptr;
return *static_cast<Genode::Signal_handler<Genode::Meta::Empty> *>(dispatcher_ptr);
}
static inline auto genode_attached_dataspace_ptr(Genode::Attached_dataspace &ds)
{
return static_cast<genode_attached_dataspace *>(&ds);
}
#endif
#endif /* _INCLUDE__GENODE_C_API__BASE_H_ */