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-/*
- File: HID_CFM.c
-
- Contains: Implementation of the CFM interfaces to the HID Utilities bundle
-
- DRI: George Warner
-
- Copyright: Copyright © 2002 Apple Computer, Inc., All Rights Reserved
-
- Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
- ("Apple") in consideration of your agreement to the following terms, and your
- use, installation, modification or redistribution of this Apple software
- constitutes acceptance of these terms. If you do not agree with these terms,
- please do not use, install, modify or redistribute this Apple software.
-
- In consideration of your agreement to abide by the following terms, and subject
- to these terms, Apple grants you a personal, non-exclusive license, under Apple’s
- copyrights in this original Apple software (the "Apple Software"), to use,
- reproduce, modify and redistribute the Apple Software, with or without
- modifications, in source and/or binary forms; provided that if you redistribute
- the Apple Software in its entirety and without modifications, you must retain
- this notice and the following text and disclaimers in all such redistributions of
- the Apple Software. Neither the name, trademarks, service marks or logos of
- Apple Computer, Inc. may be used to endorse or promote products derived from the
- Apple Software without specific prior written permission from Apple. Except as
- expressly stated in this notice, no other rights or licenses, express or implied,
- are granted by Apple herein, including but not limited to any patent rights that
- may be infringed by your derivative works or by other works in which the Apple
- Software may be incorporated.
-
- The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
- WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
- WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
- COMBINATION WITH YOUR PRODUCTS.
-
- IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
- OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
- (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-// Note: All the HID API's are defined externally in the file "HID_APIs.h".
-// How they are used in this file is defined via one or two macros:
-//
-// The DO_API micro takes four parameters:
-// #define DO_API(r,n,p,a)
-// r - what the API Returns
-// n - the Name of the API
-// p - the Parameters to the API
-// a - the Arguments passed by the API
-//
-// DO_APIr is used when an API returns a value.
-// DO_API is used when an API doesn't return a value.
-//
-// For example:
-//
-// if you have a routine that doesn't return a value:
-//
-// void MyFunction(const UInt32 pSelector, void* pPtr);
-//
-// It's macro would look like this:
-//
-// DO_API(
-// void, // this is what the function returns
-// MyFunction, // this is its Name
-// (const UInt32 pSelector, void* pPtr), // these are its parameters
-// (pSelector, pPtr)) // and these are just the arguments (no type info)
-//
-// If it returns a value like this
-//
-// OSStatus MyFunction2(const UInt32 pSelector, void* pPtr);
-//
-// It's macro would look like this:
-//
-// DO_APIr(
-// OSStatus, // this is what the function returns
-// MyFunction2, // this is its Name
-// (const UInt32 pSelector, void* pPtr), // these are its parameters
-// (pSelector, pPtr)) // and these are just the arguments (no type info)
-//
-// ==================================
-// includes
-// ==================================
-#include "HID_Utilities_CFM.h"
-
-typedef OSStatus HRESULT;
-typedef UInt32 IOByteCount;
-typedef unsigned int io_service_t;
-typedef unsigned int io_object_t;
-#define S_OK ((HRESULT)0x00000000L)
-
-// ==================================
-// define a ProcPtr type for each API
-#define DO_API(r,n,p,a) typedef r (*fp##n##Type)##p;
-#include "HID_APIs.h"
-
-// ==================================
-// declare storage for each API's function pointers
-#define DO_API(r,n,p,a) static fp##n##Type fp##n = NULL;
-#include "HID_APIs.h"
-
-// ==================================
-// globals
-// ==================================
-CFURLRef gBundleURL = NULL;
-CFBundleRef gBundle = NULL;
-
-// ==================================
-// setup the CFM to MachO (HID) connection
-// ==================================
-OSStatus SetupHIDCFM (void)
-{
- Boolean didLoad = false; // Flag that indicates the status returned when attempting to load a bundle's executable code.
- CFBundleRef refMainBundle = NULL;
- CFURLRef refMainBundleURL = NULL, refPathBundleURL = NULL;
-
- // See the Core Foundation URL Services chapter for details.
- // get app bundle (even for a CFM app!)
- refMainBundle = CFBundleGetMainBundle();
- if (!refMainBundle)
- {
- DebugStr ("\pCould open main bundle");
- return paramErr;
- }
-
- // create a URL to the app bundle
- refMainBundleURL = CFBundleCopyBundleURL (refMainBundle);
- if (!refMainBundleURL)
- {
- DebugStr ("\pCould not copy main bundle URL");
- return paramErr;
- }
-#if 0 // This should only be true if the app is bundled
- // create a URL that points to the app's directory
- refPathBundleURL = CFURLCreateCopyDeletingLastPathComponent (kCFAllocatorDefault, refMainBundleURL);
- if (!refPathBundleURL)
- {
- DebugStr ("\pCould not create new parent URL deleting last path component");
- if (refMainBundleURL != NULL)
- CFRelease (refMainBundleURL);
- return paramErr;
- }
-#else
- refPathBundleURL = refMainBundleURL;
- refMainBundleURL = NULL;
-#endif
-
- // create a URL to the HID library bundle
- gBundleURL = CFURLCreateCopyAppendingPathComponent (kCFAllocatorDefault, refPathBundleURL, CFSTR("HID.bundle"), true);
- // release created URLs
- if (refMainBundleURL != NULL)
- CFRelease (refMainBundleURL);
- if (refPathBundleURL != NULL)
- CFRelease (refPathBundleURL);
- // did we actaully get a bundle URL
- if (!gBundleURL)
- {
- DebugStr ("\pCould not create HID bundle URL");
- return paramErr;
- }
- // get the actual bundle for the HID library
- gBundle = CFBundleCreate (kCFAllocatorDefault, gBundleURL);
- if (!gBundle)
- {
- DebugStr ("\pCould not create HID MachO library bundle");
- CFShow(gBundleURL);
- return paramErr;
- }
-
- if (!CFBundleLoadExecutable (gBundle)) // If the code was successfully loaded, look for our function.
- {
- DebugStr ("\pCould not load MachO executable");
- return paramErr;
- }
-
- // Now that the code is loaded, search for the functions we want by name.
- // for each API, look up it's function pointer and store it the local ProcPtr.
-
-#define DO_API(r,n,p,a) fp##n = (fp##n##Type) CFBundleGetFunctionPointerForName (gBundle, CFSTR(#n));;
-#include "HID_APIs.h"
-
- return noErr;
-}
-// ==================================
-// tear down the CFM to MachO (HID) connection
-// ==================================
-void TearDownHIDCFM (void)
-{
- // disassociate function pointers (assign null to each one)
-#define DO_API(r,n,p,a) fp##n = NULL;
-#include "HID_APIs.h"
-
- if (gBundle != NULL)
- {
- CFBundleUnloadExecutable (gBundle); // Unload the bundle's executable code.
- if (gBundleURL != NULL)
- CFRelease (gBundleURL);
- CFRelease (gBundle);
- }
-}
-
-// Now for each API declare a (CFM) routine that calls thru the local ProcPtr to the MachO glue.
-// Note: we use two different macros here: with & without a return value.
-
-#define DO_API(r,n,p,a) void n##p { (*fp##n)##a;}
-#define DO_APIr(r,n,p,a) r n##p { return (r) (*fp##n)##a;}
-#include "HID_APIs.h"
-// ==================================