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/*
* File: UI_util.cpp
*
* Author: Beat Forster
*
* Programming interface between a user application
* and the Synthesis SyncML client engine.
*
* Copyright (c) 2007-2009 by Synthesis AG (www.synthesis.ch)
*
*/
#include "prefix_file.h"
#include "UI_util.h"
#include "SDK_util.h"
#include "SDK_support.h"
// ---- include DLL functionality ----
#if defined _WIN32
#include <windows.h>
#define DLL_Suffix ".dll"
#elif defined MACOSX
#include <dlfcn.h>
#define DLL_Suffix ".dylib"
#define RFlags (RTLD_NOW + RTLD_GLOBAL)
#elif defined LINUX
#include <dlfcn.h>
#define DLL_Suffix ".so"
#define RFlags RTLD_LAZY
#else
#define DLL_Suffix ""
#endif
// -----------------------------------
#define MyMod "UI_util" // debug name
namespace sysync {
static TSyError NotFnd( appPointer aRef, cAppCharP /* aName */ )
{
TSyError err= LOCERR_OK;
if (aRef==NULL) {
err= DB_NotFound;
//printf( "Not found: '%s' err=%d\n", aName, err );
} // if
return err;
} // NotFnd
// Connect to DLL
static TSyError ConnectDLL( cAppCharP aDLLname, appPointer &aDLL )
{
#if defined _WIN32
aDLL= LoadLibrary( aDLLname );
#elif defined MACOSX || defined LINUX
aDLL= dlopen( aDLLname, RFlags );
//printf( "'%s' %s\n", aDLLname, dlerror() );
#else
aDLL= NULL;
#endif
return NotFnd( aDLL, aDLLname );
} // ConnectDLL
// Get <aFunc> of <aFuncName> at <aDLL>
static TSyError DLL_Func( appPointer aDLL, cAppCharP aFuncName, appPointer &aFunc )
{
#if defined _WIN32
aFunc= (appPointer)GetProcAddress( (HINSTANCE)aDLL, aFuncName );
#elif defined MACOSX || defined LINUX
aFunc= dlsym( aDLL, aFuncName );
#else
aFunc= NULL;
#endif
return NotFnd( aFunc, aFuncName );
} // DLL_Func
static bool IsLib( cAppCharP name )
{
int len= strlen(name);
return len==0 || (name[ 0 ]=='[' &&
name[ len-1 ]==']'); // empty or embraced with "[" "]"
} // IsLib
// Connect SyncML engine
TSyError UI_Connect( UI_Call_In &aCI, appPointer &aDLL, cAppCharP aEngineName,
CVersion aPrgVersion,
uInt16 aDebugFlags )
{
// Always search for BOTH names, independently of environment
cAppCharP SyFName= "SySync_ConnectEngine";
cAppCharP FName= "ConnectEngine";
string name= aEngineName;
TSyError err= 0;
bool dbg= ( aDebugFlags & DBG_PLUGIN_DIRECT )!=0;
CVersion engVersion;
appPointer fFunc;
typedef TSyError (*GetCEProc)( UI_Call_In* aCI, CVersion *aEngVersion,
CVersion aPrgVersion,
uInt16 aDebugFlags );
GetCEProc fConnectEngine= NULL;
do {
aCI = NULL; // no such structure available at the beginning
aDLL= NULL;
if (dbg) printf( "name='%s' err=%d\n", name.c_str(), err );
if (name.empty()) {
// not yet fully implemented: Take default settings
aCI= new SDK_Interface_Struct;
InitCallback_Pure( aCI, DB_Callback_Version );
aCI->debugFlags= aDebugFlags;
break;
} // if
if (IsLib( name.c_str() )) {
#ifdef DBAPI_LINKED
fConnectEngine= SYSYNC_EXTERNAL(ConnectEngine);
#endif
break;
} // if
name+= DLL_Suffix;
err= ConnectDLL( name.c_str(), aDLL ); // try with suffix first
if (dbg) printf( "modu='%s' err=%d\n", name.c_str(), err );
if (err) {
name= aEngineName;
err= ConnectDLL( name.c_str(), aDLL ); // then try directly
} // if
if (dbg) printf( "modu='%s' err=%d\n", name.c_str(), err );
if (err) break;
cAppCharP fN= SyFName;
err= DLL_Func( aDLL, fN, fFunc );
fConnectEngine= (GetCEProc)fFunc;
if (dbg) printf( "func err=%d '%s' %s\n", err, fN, RefStr( (void*)fConnectEngine ).c_str() );
if (!fConnectEngine) { fN= FName;
err= DLL_Func( aDLL, fN, fFunc );
fConnectEngine= (GetCEProc)fFunc;
if (dbg) printf( "func err=%d '%s' %s\n", err, fN, RefStr( (void*)fConnectEngine ).c_str() );
} // if
} while (false);
if (fConnectEngine)
err= fConnectEngine( &aCI, &engVersion, aPrgVersion, aDebugFlags );
if (dbg) printf( "call err=%d\n", err );
//DEBUG_DB ( aCI, MyMod, "ConnectEngine", "aCB=%08X eng=%08X prg=%08X aDebugFlags=%04X err=%d",
// aCB, engVersion, aPrgVersion, aDebugFlags, err );
if (fConnectEngine && err) return err;
return NotFnd( aCI, "ConnectEngine" );
} // UI_Connect
TSyError UI_Disconnect( UI_Call_In aCI, appPointer aDLL )
{
// Always search for BOTH names, independently of environment
cAppCharP SyFName= "SySync_DisconnectEngine";
cAppCharP FName= "DisconnectEngine";
TSyError err= 0;
appPointer fFunc;
typedef TSyError (*GetDEProc)( UI_Call_In aCI );
GetDEProc fDisconnectEngine= NULL;
do {
if (aDLL==NULL) {
#ifdef DBAPI_LINKED
fDisconnectEngine= SYSYNC_EXTERNAL(DisconnectEngine);
#endif
break;
} // if
cAppCharP fN= SyFName;
err= DLL_Func( aDLL, fN, fFunc );
fDisconnectEngine= (GetDEProc)fFunc;
if (!fDisconnectEngine) { fN= FName;
err= DLL_Func( aDLL, fN, fFunc );
fDisconnectEngine= (GetDEProc)fFunc;
} // if
//printf( "func err=%d %08X\n", err, fConnectEngine );
} while (false);
if (fDisconnectEngine)
err= fDisconnectEngine( aCI );
//printf( "call err=%d\n", err );
//DEBUG_DB ( aCI, MyMod, "ConnectEngine", "aCB=%08X eng=%08X prg=%08X aDebugFlags=%04X err=%d",
// aCB, engVersion, aPrgVersion, aDebugFlags, err );
if (fDisconnectEngine && err) return err;
return NotFnd( aCI, "DisconnectEngine" );
} // UI_Disconnect
// <uContext> will be casted to the UIContext* structure
UIContext* UiC( CContext uContext ) { return (UIContext*)uContext; }
// Create a UI context
TSyError UI_CreateContext( CContext &uContext, cAppCharP aEngineName,
CVersion aPrgVersion,
uInt16 aDebugFlags )
{
TSyError err;
UIContext* uc= new UIContext;
err= UI_Connect( uc->uCI, uc->uDLL, aEngineName, aPrgVersion, aDebugFlags );
uc->uName= aEngineName;
DEBUG_DB ( uc->uCI, MyMod,"UI_CreateContext", "'%s'", uc->uName.c_str() );
uContext= (CContext)uc;
return err;
} // UI_CreateContext
// Delete a UI context
TSyError UI_DeleteContext( CContext uContext )
{
UIContext* uc= UiC( uContext );
DEBUG_DB ( uc->uCI, MyMod,"UI_DeleteContext", "'%s'", uc->uName.c_str() );
delete uc; // delete context
return LOCERR_OK;
} // UI_DeleteContext
} // namespace sysync
/* eof */
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