Move scared guts of core into logic (bug 5680, r=fyren).
--HG-- rename : core/ExtensionSys.cpp => core/logic/ExtensionSys.cpp rename : core/ExtensionSys.h => core/logic/ExtensionSys.h rename : core/HandleSys.cpp => core/logic/HandleSys.cpp rename : core/HandleSys.h => core/logic/HandleSys.h rename : core/NativeInvoker.cpp => core/logic/NativeInvoker.cpp rename : core/NativeInvoker.h => core/logic/NativeInvoker.h rename : core/NativeOwner.cpp => core/logic/NativeOwner.cpp rename : core/NativeOwner.h => core/logic/NativeOwner.h rename : core/PluginSys.cpp => core/logic/PluginSys.cpp rename : core/PluginSys.h => core/logic/PluginSys.h rename : core/ShareSys.cpp => core/logic/ShareSys.cpp rename : core/ShareSys.h => core/logic/ShareSys.h rename : core/smn_fakenatives.cpp => core/logic/smn_fakenatives.cpp rename : core/logic/AutoHandleRooter.h => public/AutoHandleRooter.h
This commit is contained in:
David Anderson
@@ -0,0 +1,253 @@
|
||||
/**
|
||||
* vim: set ts=4 :
|
||||
* =============================================================================
|
||||
* SourceMod
|
||||
* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
|
||||
* =============================================================================
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it under
|
||||
* the terms of the GNU General Public License, version 3.0, as published by the
|
||||
* Free Software Foundation.
|
||||
*
|
||||
* This program 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 General Public License for more
|
||||
* details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along with
|
||||
* this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* As a special exception, AlliedModders LLC gives you permission to link the
|
||||
* code of this program (as well as its derivative works) to "Half-Life 2," the
|
||||
* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
|
||||
* by the Valve Corporation. You must obey the GNU General Public License in
|
||||
* all respects for all other code used. Additionally, AlliedModders LLC grants
|
||||
* this exception to all derivative works. AlliedModders LLC defines further
|
||||
* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
|
||||
* or <http://www.sourcemod.net/license.php>.
|
||||
*
|
||||
* Version: $Id$
|
||||
*/
|
||||
|
||||
#ifndef _INCLUDE_SOURCEMOD_HANDLESYSTEM_H_
|
||||
#define _INCLUDE_SOURCEMOD_HANDLESYSTEM_H_
|
||||
|
||||
#include <IHandleSys.h>
|
||||
#include <stdio.h>
|
||||
#include <sm_trie_tpl.h>
|
||||
#include "sm_memtable.h"
|
||||
#include "common_logic.h"
|
||||
|
||||
#define HANDLESYS_MAX_HANDLES (1<<14)
|
||||
#define HANDLESYS_MAX_TYPES (1<<9)
|
||||
#define HANDLESYS_MAX_SUBTYPES 0xF
|
||||
#define HANDLESYS_SUBTYPE_MASK 0xF
|
||||
#define HANDLESYS_TYPEARRAY_SIZE (HANDLESYS_MAX_TYPES * (HANDLESYS_MAX_SUBTYPES + 1))
|
||||
#define HANDLESYS_MAX_SERIALS 0xFFFF
|
||||
#define HANDLESYS_SERIAL_MASK 0xFFFF0000
|
||||
#define HANDLESYS_HANDLE_MASK 0x0000FFFF
|
||||
|
||||
#define HANDLESYS_MEMUSAGE_MIN_VERSION 3
|
||||
|
||||
/**
|
||||
* The QHandle is a nasty structure that compacts the handle system into a big vector.
|
||||
* The members of the vector each encapsulate one Handle, however, they also act as nodes
|
||||
* in an inlined linked list and an inlined vector.
|
||||
*
|
||||
* The first of these lists is the 'freeID' list. Each node from 1 to N (where N
|
||||
* is the number of free nodes) has a 'freeID' that specifies a free Handle ID. This
|
||||
* is a quick hack to get around allocating a second base vector.
|
||||
*
|
||||
* The second vector is the identity linked list. An identity has its own handle, so
|
||||
* these handles are used as sentinel nodes for index linking. They point to the first and last
|
||||
* index into the handle array. Each subsequent Handle who is owned by that identity is mapped into
|
||||
* that list. This lets owning identities be unloaded in O(n) time.
|
||||
*
|
||||
* Eventually, there may be a third list for type chains.
|
||||
*/
|
||||
|
||||
enum HandleSet
|
||||
{
|
||||
HandleSet_None = 0,
|
||||
HandleSet_Used, /* The Handle is in use */
|
||||
HandleSet_Freed, /* The "master" Handle of a clone chain is freed */
|
||||
HandleSet_Identity, /* The Handle is a special identity */
|
||||
};
|
||||
|
||||
struct QHandle
|
||||
{
|
||||
HandleType_t type; /* Handle type */
|
||||
void *object; /* Unmaintained object pointer */
|
||||
IdentityToken_t *owner; /* Identity of object which owns this */
|
||||
unsigned int serial; /* Serial no. for sanity checking */
|
||||
unsigned int refcount; /* Reference count for safe destruction */
|
||||
unsigned int clone; /* If non-zero, this is our cloned parent index */
|
||||
HandleSet set; /* Information about the handle's state */
|
||||
bool access_special; /* Whether or not access rules are special or type-derived */
|
||||
bool is_destroying; /* Whether or not the handle is being destroyed */
|
||||
HandleAccess sec; /* Security rules */
|
||||
/* The following variables are unrelated to the Handle array, and used
|
||||
* as an inlined chain of information */
|
||||
unsigned int freeID; /* ID of a free handle in the free handle chain */
|
||||
/* Indexes into the handle array for owner membership.
|
||||
* For identity roots, these are treated as the head/tail. */
|
||||
unsigned int ch_prev; /* chained previous handle */
|
||||
unsigned int ch_next; /* chained next handle */
|
||||
};
|
||||
|
||||
struct QHandleType
|
||||
{
|
||||
IHandleTypeDispatch *dispatch;
|
||||
unsigned int freeID;
|
||||
unsigned int children;
|
||||
TypeAccess typeSec;
|
||||
HandleAccess hndlSec;
|
||||
unsigned int opened;
|
||||
int nameIdx;
|
||||
};
|
||||
|
||||
typedef void (HANDLE_REPORTER)(const char *str, ...);
|
||||
|
||||
class HandleSystem :
|
||||
public IHandleSys
|
||||
{
|
||||
friend HandleError IdentityHandle(IdentityToken_t *token, unsigned int *index);
|
||||
friend class ShareSystem;
|
||||
public:
|
||||
HandleSystem();
|
||||
~HandleSystem();
|
||||
public: //IHandleSystem
|
||||
|
||||
HandleType_t CreateType(const char *name,
|
||||
IHandleTypeDispatch *dispatch,
|
||||
HandleType_t parent,
|
||||
const TypeAccess *typeAccess,
|
||||
const HandleAccess *hndlAccess,
|
||||
IdentityToken_t *ident,
|
||||
HandleError *err);
|
||||
|
||||
bool RemoveType(HandleType_t type, IdentityToken_t *ident);
|
||||
|
||||
bool FindHandleType(const char *name, HandleType_t *type);
|
||||
|
||||
Handle_t CreateHandle(HandleType_t type,
|
||||
void *object,
|
||||
IdentityToken_t *owner,
|
||||
IdentityToken_t *ident,
|
||||
HandleError *err);
|
||||
|
||||
HandleError FreeHandle(Handle_t handle, const HandleSecurity *pSecurity);
|
||||
|
||||
HandleError CloneHandle(Handle_t handle,
|
||||
Handle_t *newhandle,
|
||||
IdentityToken_t *newOwner,
|
||||
const HandleSecurity *pSecurity);
|
||||
|
||||
HandleError ReadHandle(Handle_t handle,
|
||||
HandleType_t type,
|
||||
const HandleSecurity *pSecurity,
|
||||
void **object);
|
||||
|
||||
bool InitAccessDefaults(TypeAccess *pTypeAccess, HandleAccess *pHandleAccess);
|
||||
|
||||
bool TypeCheck(HandleType_t intype, HandleType_t outtype);
|
||||
|
||||
virtual Handle_t CreateHandleEx(HandleType_t type,
|
||||
void *object,
|
||||
const HandleSecurity *pSec,
|
||||
const HandleAccess *pAccess,
|
||||
HandleError *err);
|
||||
|
||||
void Dump(HANDLE_REPORTER rep);
|
||||
|
||||
/* Bypasses security checks. */
|
||||
Handle_t FastCloneHandle(Handle_t hndl);
|
||||
protected:
|
||||
/**
|
||||
* Decodes a handle with sanity and security checking.
|
||||
*/
|
||||
HandleError GetHandle(Handle_t handle,
|
||||
IdentityToken_t *ident,
|
||||
QHandle **pHandle,
|
||||
unsigned int *index,
|
||||
bool ignoreFree=false);
|
||||
|
||||
Handle_t FastCloneHandle(QHandle *pHandle, unsigned int index);
|
||||
void GetHandleUnchecked(Handle_t hndl, QHandle *& pHandle, unsigned int &index);
|
||||
|
||||
/**
|
||||
* Creates a basic handle and sets its reference count to 1.
|
||||
* Does not do any type or security checking.
|
||||
*/
|
||||
HandleError MakePrimHandle(HandleType_t type,
|
||||
QHandle **pHandle,
|
||||
unsigned int *index,
|
||||
HandleType_t *handle,
|
||||
IdentityToken_t *owner,
|
||||
bool identity=false);
|
||||
|
||||
/**
|
||||
* Frees a primitive handle. Does no object freeing, only reference count, bookkeeping,
|
||||
* and linked list maintenance.
|
||||
* If used on an Identity handle, destroys all Handles under that identity.
|
||||
*/
|
||||
void ReleasePrimHandle(unsigned int index);
|
||||
|
||||
/**
|
||||
* Sets the security owner of a type.
|
||||
*/
|
||||
void SetTypeSecurityOwner(HandleType_t type, IdentityToken_t *pToken);
|
||||
|
||||
/**
|
||||
* Helper function to check access rights.
|
||||
*/
|
||||
bool CheckAccess(QHandle *pHandle, HandleAccessRight right, const HandleSecurity *pSecurity);
|
||||
|
||||
/**
|
||||
* Some wrappers for internal functions, so we can pass indexes instead of encoded handles.
|
||||
*/
|
||||
HandleError FreeHandle(QHandle *pHandle, unsigned int index);
|
||||
void UnlinkHandleFromOwner(QHandle *pHandle, unsigned int index);
|
||||
HandleError CloneHandle(QHandle *pHandle, unsigned int index, Handle_t *newhandle, IdentityToken_t *newOwner);
|
||||
Handle_t CreateHandleInt(HandleType_t type, void *object, const HandleSecurity *pSec, HandleError *err, const HandleAccess *pAccess, bool identity);
|
||||
|
||||
bool TryAndFreeSomeHandles();
|
||||
HandleError TryAllocHandle(unsigned int *handle);
|
||||
private:
|
||||
QHandle *m_Handles;
|
||||
QHandleType *m_Types;
|
||||
KTrie<QHandleType *> m_TypeLookup;
|
||||
unsigned int m_TypeTail;
|
||||
unsigned int m_FreeTypes;
|
||||
unsigned int m_HandleTail;
|
||||
unsigned int m_FreeHandles;
|
||||
unsigned int m_HSerial;
|
||||
BaseStringTable *m_strtab;
|
||||
};
|
||||
|
||||
extern HandleSystem g_HandleSys;
|
||||
|
||||
struct AutoHandleRooter
|
||||
{
|
||||
public:
|
||||
AutoHandleRooter(Handle_t hndl)
|
||||
{
|
||||
if (hndl != BAD_HANDLE)
|
||||
this->hndl = g_HandleSys.FastCloneHandle(hndl);
|
||||
else
|
||||
this->hndl = BAD_HANDLE;
|
||||
}
|
||||
|
||||
~AutoHandleRooter()
|
||||
{
|
||||
if (hndl != BAD_HANDLE)
|
||||
{
|
||||
HandleSecurity sec(g_pCoreIdent, g_pCoreIdent);
|
||||
g_HandleSys.FreeHandle(hndl, &sec);
|
||||
}
|
||||
}
|
||||
private:
|
||||
Handle_t hndl;
|
||||
};
|
||||
|
||||
#endif //_INCLUDE_SOURCEMOD_HANDLESYSTEM_H_
|
||||
Reference in New Issue
Block a user