layouts/cdl/CdlEngine/src/CdlClient.cpp
changeset 0 05e9090e2422
equal deleted inserted replaced
-1:000000000000 0:05e9090e2422
       
     1 /*
       
     2 * Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include "CdlClient.h"
       
    20 #include "CdlClientServer.h"
       
    21 #ifdef __CDLSERVER_NO_PROCESSES__
       
    22 #include <e32math.h>
       
    23 #endif
       
    24 #include "CdlRefs.h"
       
    25 #include <f32file.h>
       
    26 
       
    27 static TInt StartServer()
       
    28 //
       
    29 // Start the server process or thread
       
    30 //
       
    31 	{
       
    32 	const TUidType serverUid(KNullUid,KNullUid,KServerUid3);
       
    33 
       
    34 #ifdef __CDLSERVER_NO_PROCESSES__
       
    35 	//
       
    36 	// In EKA1 WINS the server is a DLL, the exported entrypoint returns a TInt
       
    37 	// which represents the real entry-point for the server thread
       
    38 	//
       
    39 	RLibrary lib;
       
    40 	TInt r=lib.Load(KCdlServerDllImg,serverUid);
       
    41 	if (r!=KErrNone)
       
    42 		return r;
       
    43 	TLibraryFunction ordinal1=lib.Lookup(1);
       
    44 	TThreadFunction serverFunc=reinterpret_cast<TThreadFunction>(ordinal1());
       
    45 	//
       
    46 	// To deal with the unique thread (+semaphore!) naming in EPOC, and that we may
       
    47 	// be trying to restart a server that has just exited we attempt to create a
       
    48 	// unique thread name for the server.
       
    49 	// This uses Math::Random() to generate a 32-bit random number for the name
       
    50 	//
       
    51 	TName name(KCdlServerName);
       
    52 	name.AppendNum(Math::Random(),EHex);
       
    53 	RThread server;
       
    54 	r=server.Create(name,serverFunc,
       
    55 					KCdlServerStackSize,
       
    56 					NULL,&lib,NULL,
       
    57 					KCdlServerInitHeapSize,KCdlServerMaxHeapSize,EOwnerProcess);
       
    58 	lib.Close();	// if successful, server thread has handle to library now
       
    59 #else
       
    60 	//
       
    61 	// EPOC and EKA2 is easy, we just create a new server process. Simultaneous launching
       
    62 	// of two such processes should be detected when the second one attempts to
       
    63 	// create the server object, failing with KErrAlreadyExists.
       
    64 	//
       
    65 	RProcess server;
       
    66 	TInt r=server.Create(KCdlServerExeImg,KNullDesC,serverUid);
       
    67 #endif
       
    68 	if (r!=KErrNone)
       
    69 		return r;
       
    70 	TRequestStatus stat;
       
    71 	server.Rendezvous(stat);
       
    72 	if (stat!=KRequestPending)
       
    73 		server.Kill(0);		// abort startup
       
    74 	else
       
    75 		server.Resume();	// logon OK - start the server
       
    76 	User::WaitForRequest(stat);		// wait for start or death
       
    77 	// we can't use the 'exit reason' if the server panicked as this
       
    78 	// is the panic 'reason' and may be '0' which cannot be distinguished
       
    79 	// from KErrNone
       
    80 	r=(server.ExitType()==EExitPanic) ? KErrGeneral : stat.Int();
       
    81 	server.Close();
       
    82 	return r;
       
    83 	}
       
    84 
       
    85 TInt RCdlSession::Connect()
       
    86 //
       
    87 // Connect to the server, attempting to start it if necessary
       
    88 //
       
    89 	{
       
    90 	TInt retry=2;
       
    91 	for (;;)
       
    92 		{
       
    93 		TInt r=CreateSession(KCdlServerName,TVersion(0,0,0),1);
       
    94 		if (r!=KErrNotFound && r!=KErrServerTerminated)
       
    95 			return r;
       
    96 		if (--retry==0)
       
    97 			return r;
       
    98 		r=StartServer();
       
    99 		if (r!=KErrNone && r!=KErrAlreadyExists)
       
   100 			return r;
       
   101 		}
       
   102 	}
       
   103 
       
   104 void RCdlSession::RequestGetCustL(const CCdlUids& aUids, TInt& aCustSize) const
       
   105 	{
       
   106 	TPtrC8 ptr = aUids.Export();
       
   107 	TPckg<TInt> pckg(aCustSize);
       
   108 
       
   109 	TIpcArgs p(&pckg, &ptr, ptr.Length());
       
   110 	User::LeaveIfError(SendReceive(ECdlServCmdRequestGetCust,p));
       
   111 	}
       
   112 
       
   113 TInt RCdlSession::GetCust(TDes8& aCust, TInt& aNewSize) const
       
   114 	{
       
   115 	TPckg<TInt> pckg(aNewSize);
       
   116 
       
   117 	TIpcArgs p(&aCust, aCust.MaxLength(), &pckg);
       
   118 	return SendReceive(ECdlServCmdGetCust,p);
       
   119 	}
       
   120 
       
   121 void RCdlSession::SetUidsToNotifyL(const CCdlUids& aUids)
       
   122 	{
       
   123 	TPtrC8 ptr = aUids.Export();
       
   124 
       
   125 	TIpcArgs p(&ptr, ptr.Size());
       
   126 	User::LeaveIfError(SendReceive(ECdlServCmdSetUidsToNotify,p));
       
   127 	}
       
   128 
       
   129 void RCdlSession::NotifyChange(TRequestStatus& aStatus, TPckgBuf<SCdlServerChange>& aChange)
       
   130 	{
       
   131 	TIpcArgs p(&aChange);
       
   132 	SendReceive(ECdlServCmdNotifyChange,p,aStatus);
       
   133 	}
       
   134 
       
   135 void RCdlSession::CancelNotifyChange() const
       
   136 	{
       
   137 	SendReceive(ECdlServCmdCancelNotifyChange,TIpcArgs());
       
   138 	}
       
   139 
       
   140 void RCdlSession::SetCustL(const TDesC8& aCust)
       
   141 	{
       
   142 	TIpcArgs p(&aCust, aCust.Size());
       
   143 	User::LeaveIfError(SendReceive(ECdlServCmdSetCust,p));
       
   144 	}
       
   145 
       
   146 CCdlRefs* RCdlSession::FileContentsLC(const TDesC& aName) const
       
   147 	{
       
   148 	return GetRefsLC(KNullUid, aName, EFalse);
       
   149 	}
       
   150 
       
   151 CCdlRefs* RCdlSession::FindInstancesLC(TUid aCdlUid) const
       
   152 	{
       
   153 	return GetRefsLC(aCdlUid, KNullDesC, ETrue);
       
   154 	}
       
   155 
       
   156 CCdlRefs* RCdlSession::GetRefsLC(TUid aCdlUid, const TDesC& aName, TBool aByUid) const
       
   157 	{
       
   158 	TPckgBuf<TInt> refsSize;
       
   159 
       
   160 	// get the server to export the refs to the temp buffer and return it's size.
       
   161 	TIpcArgs p(&refsSize, aByUid ? 0 : &aName, aName.Length(), aCdlUid.iUid);
       
   162 	User::LeaveIfError(SendReceive(ECdlServCmdGetRefsSize,p));
       
   163 
       
   164 	CCdlRefs* refs = CCdlRefs::NewLC();
       
   165 
       
   166 	// now get the temp buffer and import the refs.
       
   167 	HBufC8* buf = GetTempBufLC(refsSize());
       
   168 	refs->ImportL(*buf);
       
   169 	CleanupStack::PopAndDestroy(buf);
       
   170 
       
   171 	return refs;
       
   172 	}
       
   173 
       
   174 CCdlNames* RCdlSession::FindCustomisationFilesLC() const
       
   175 	{
       
   176 	TPckgBuf<TInt> namesSize;
       
   177 
       
   178 	// get the server to export the files list to the temp buffer and return it's size
       
   179 	TIpcArgs p(&namesSize);
       
   180 	User::LeaveIfError(SendReceive(ECdlServCmdGetNamesSize,p));
       
   181 
       
   182 	CCdlNames* names = CCdlNames::NewLC();
       
   183 
       
   184 	// now get the temp buffer and import the names.
       
   185 	HBufC8* buf = GetTempBufLC(namesSize());
       
   186 	names->ImportL(*buf);
       
   187 	CleanupStack::PopAndDestroy(buf);
       
   188 
       
   189 	return names;
       
   190 	}
       
   191 
       
   192 // There are a number of commands that use a common temporary buffer in the server-side
       
   193 // session. This function gets that buffer.
       
   194 HBufC8* RCdlSession::GetTempBufLC(TInt aSize) const
       
   195 	{
       
   196 	HBufC8* buf = HBufC8::NewMaxLC(aSize);
       
   197 	TPtr8 ptr = buf->Des();
       
   198 	TIpcArgs p(&ptr);
       
   199 	User::LeaveIfError(SendReceive(ECdlServCmdGetTempBuf,p));
       
   200 	return buf;
       
   201 	}
       
   202 
       
   203 CCdlRefs* RCdlSession::AllAvailableRefsLC() const
       
   204 	{
       
   205 	// get the server to export the refs to the temp buffer and return it's size.
       
   206 	TPckgBuf<TInt> refsSize;
       
   207 	TIpcArgs p(&refsSize);
       
   208 	User::LeaveIfError(SendReceive(ECdlServCmdGetAllRefsSize,p));
       
   209 
       
   210 	CCdlRefs* refs = CCdlRefs::NewLC();
       
   211 
       
   212 	// now get the temp buffer and import the refs.
       
   213 	HBufC8* buf = GetTempBufLC(refsSize());
       
   214 	refs->ImportL(*buf);
       
   215 	CleanupStack::PopAndDestroy(buf);
       
   216 
       
   217 	return refs;
       
   218 	}
       
   219 
       
   220 TInt RCdlSession::IsPluginInRom(const TDesC& aFileName, TBool& aIsInRom) const
       
   221 	{
       
   222 	TPckg<TBool> isInRom(aIsInRom);
       
   223 	TIpcArgs p(&aFileName, aFileName.Length(), &isInRom);
       
   224 	return SendReceive(ECdlServCmdIsPluginInRom, p);
       
   225 	}
       
   226 
       
   227 TInt RCdlSession::PluginDrive(const TDesC& aFileName, TDriveUnit& aDrive) const
       
   228 	{
       
   229 	TIpcArgs p(&aFileName, aFileName.Length());
       
   230 	TInt ret = SendReceive(ECdlServCmdPluginDrive, p);
       
   231 	if (ret < KErrNone)
       
   232 	    return ret;
       
   233 	aDrive = ret;
       
   234 	return KErrNone;
       
   235 	}
       
   236