Examples with ErrnoException android.system.ErrnoException used on opensource projects

Example 96 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class LocalSocketImpl method getOption.

public Object getOption(int optID) throws IOException {
    if (fd == null) {
        throw new IOException("socket not created");
    }
    try {
        Object toReturn;
        switch(optID) {
            case SocketOptions.SO_TIMEOUT:
                StructTimeval timeval = Os.getsockoptTimeval(fd, OsConstants.SOL_SOCKET, OsConstants.SO_SNDTIMEO);
                toReturn = (int) timeval.toMillis();
                break;
            case SocketOptions.SO_RCVBUF:
            case SocketOptions.SO_SNDBUF:
            case SocketOptions.SO_REUSEADDR:
                int osOpt = javaSoToOsOpt(optID);
                toReturn = Os.getsockoptInt(fd, OsConstants.SOL_SOCKET, osOpt);
                break;
            case SocketOptions.SO_LINGER:
                StructLinger linger = Os.getsockoptLinger(fd, OsConstants.SOL_SOCKET, OsConstants.SO_LINGER);
                if (!linger.isOn()) {
                    toReturn = -1;
                } else {
                    toReturn = linger.l_linger;
                }
                break;
            case SocketOptions.TCP_NODELAY:
                toReturn = Os.getsockoptInt(fd, OsConstants.IPPROTO_TCP, OsConstants.TCP_NODELAY);
                break;
            default:
                throw new IOException("Unknown option: " + optID);
        }
        return toReturn;
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 97 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class LocalSocketImpl method setOption.

public void setOption(int optID, Object value) throws IOException {
    if (fd == null) {
        throw new IOException("socket not created");
    }
    /*
         * Boolean.FALSE is used to disable some options, so it
         * is important to distinguish between FALSE and unset.
         * We define it here that -1 is unset, 0 is FALSE, and 1
         * is TRUE.
         */
    int boolValue = -1;
    int intValue = 0;
    if (value instanceof Integer) {
        intValue = (Integer) value;
    } else if (value instanceof Boolean) {
        boolValue = ((Boolean) value) ? 1 : 0;
    } else {
        throw new IOException("bad value: " + value);
    }
    try {
        switch(optID) {
            case SocketOptions.SO_LINGER:
                StructLinger linger = new StructLinger(boolValue, intValue);
                Os.setsockoptLinger(fd, OsConstants.SOL_SOCKET, OsConstants.SO_LINGER, linger);
                break;
            case SocketOptions.SO_TIMEOUT:
                // The option must set both send and receive timeouts.
                // Note: The incoming timeout value is in milliseconds.
                StructTimeval timeval = StructTimeval.fromMillis(intValue);
                Os.setsockoptTimeval(fd, OsConstants.SOL_SOCKET, OsConstants.SO_RCVTIMEO, timeval);
                Os.setsockoptTimeval(fd, OsConstants.SOL_SOCKET, OsConstants.SO_SNDTIMEO, timeval);
                break;
            case SocketOptions.SO_RCVBUF:
            case SocketOptions.SO_SNDBUF:
            case SocketOptions.SO_REUSEADDR:
                int osOpt = javaSoToOsOpt(optID);
                Os.setsockoptInt(fd, OsConstants.SOL_SOCKET, osOpt, intValue);
                break;
            case SocketOptions.TCP_NODELAY:
                Os.setsockoptInt(fd, OsConstants.IPPROTO_TCP, OsConstants.TCP_NODELAY, intValue);
                break;
            default:
                throw new IOException("Unknown option: " + optID);
        }
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 98 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class SharedPreferencesImpl method writeToFile.

// Note: must hold mWritingToDiskLock
private void writeToFile(MemoryCommitResult mcr, boolean isFromSyncCommit) {
    // Rename the current file so it may be used as a backup during the next read
    if (mFile.exists()) {
        boolean needsWrite = false;
        // Only need to write if the disk state is older than this commit
        if (mDiskStateGeneration < mcr.memoryStateGeneration) {
            if (isFromSyncCommit) {
                needsWrite = true;
            } else {
                synchronized (this) {
                    // be persisted.
                    if (mCurrentMemoryStateGeneration == mcr.memoryStateGeneration) {
                        needsWrite = true;
                    }
                }
            }
        }
        if (!needsWrite) {
            if (DEBUG) {
                Log.d(TAG, "skipped " + mcr.memoryStateGeneration + " -> " + mFile.getName());
            }
            mcr.setDiskWriteResult(true);
            return;
        }
        if (!mBackupFile.exists()) {
            if (!mFile.renameTo(mBackupFile)) {
                Log.e(TAG, "Couldn't rename file " + mFile + " to backup file " + mBackupFile);
                mcr.setDiskWriteResult(false);
                return;
            }
        } else {
            mFile.delete();
        }
    }
    // from the backup.
    try {
        FileOutputStream str = createFileOutputStream(mFile);
        if (str == null) {
            mcr.setDiskWriteResult(false);
            return;
        }
        XmlUtils.writeMapXml(mcr.mapToWriteToDisk, str);
        FileUtils.sync(str);
        if (DEBUG) {
            Log.d(TAG, "wrote " + mcr.memoryStateGeneration + " -> " + mFile.getName());
        }
        str.close();
        ContextImpl.setFilePermissionsFromMode(mFile.getPath(), mMode, 0);
        try {
            final StructStat stat = Os.stat(mFile.getPath());
            synchronized (this) {
                mStatTimestamp = stat.st_mtime;
                mStatSize = stat.st_size;
            }
        } catch (ErrnoException e) {
        // Do nothing
        }
        // Writing was successful, delete the backup file if there is one.
        mBackupFile.delete();
        mDiskStateGeneration = mcr.memoryStateGeneration;
        mcr.setDiskWriteResult(true);
        return;
    } catch (XmlPullParserException e) {
        Log.w(TAG, "writeToFile: Got exception:", e);
    } catch (IOException e) {
        Log.w(TAG, "writeToFile: Got exception:", e);
    }
    // Clean up an unsuccessfully written file
    if (mFile.exists()) {
        if (!mFile.delete()) {
            Log.e(TAG, "Couldn't clean up partially-written file " + mFile);
        }
    }
    mcr.setDiskWriteResult(false);
}

Example 99 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class MemoryMappedFile_Delegate method mmapRO.

@LayoutlibDelegate
static MemoryMappedFile mmapRO(String path) throws ErrnoException {
    if (!path.startsWith(TARGET_PATH)) {
        throw new ErrnoException("Custom timezone data files are not supported.", 1);
    }
    if (sRootPath == null) {
        throw new ErrnoException("Bridge has not been initialized properly.", 1);
    }
    path = path.substring(TARGET_PATH.length());
    try {
        File f = new File(sRootPath, path);
        if (!f.exists()) {
            throw new ErrnoException("File not found: " + f.getPath(), 1);
        }
        RandomAccessFile file = new RandomAccessFile(f, "r");
        try {
            long size = file.length();
            MemoryMappedFile_Delegate newDelegate = new MemoryMappedFile_Delegate(file);
            long filePointer = file.getFilePointer();
            MemoryMappedFile mmFile = new MemoryMappedFile(filePointer, size);
            long delegateIndex = sManager.addNewDelegate(newDelegate);
            sMemoryMappedFileMap.put(mmFile, delegateIndex);
            return mmFile;
        } finally {
            file.close();
        }
    } catch (IOException e) {
        throw new ErrnoException("mmapRO", 1, e);
    }
}

Example 100 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by crdroidandroid.

the class LocalTransport method performBackup.

@Override
public int performBackup(PackageInfo packageInfo, ParcelFileDescriptor data) {
    if (DEBUG) {
        try {
            StructStat ss = Os.fstat(data.getFileDescriptor());
            Log.v(TAG, "performBackup() pkg=" + packageInfo.packageName + " size=" + ss.st_size);
        } catch (ErrnoException e) {
            Log.w(TAG, "Unable to stat input file in performBackup() on " + packageInfo.packageName);
        }
    }
    File packageDir = new File(mCurrentSetIncrementalDir, packageInfo.packageName);
    packageDir.mkdirs();
    // Each 'record' in the restore set is kept in its own file, named by
    // the record key.  Wind through the data file, extracting individual
    // record operations and building a set of all the updates to apply
    // in this update.
    BackupDataInput changeSet = new BackupDataInput(data.getFileDescriptor());
    try {
        int bufSize = 512;
        byte[] buf = new byte[bufSize];
        while (changeSet.readNextHeader()) {
            String key = changeSet.getKey();
            String base64Key = new String(Base64.encode(key.getBytes()));
            File entityFile = new File(packageDir, base64Key);
            int dataSize = changeSet.getDataSize();
            if (DEBUG)
                Log.v(TAG, "Got change set key=" + key + " size=" + dataSize + " key64=" + base64Key);
            if (dataSize >= 0) {
                if (entityFile.exists()) {
                    entityFile.delete();
                }
                FileOutputStream entity = new FileOutputStream(entityFile);
                if (dataSize > bufSize) {
                    bufSize = dataSize;
                    buf = new byte[bufSize];
                }
                changeSet.readEntityData(buf, 0, dataSize);
                if (DEBUG) {
                    try {
                        long cur = Os.lseek(data.getFileDescriptor(), 0, SEEK_CUR);
                        Log.v(TAG, "  read entity data; new pos=" + cur);
                    } catch (ErrnoException e) {
                        Log.w(TAG, "Unable to stat input file in performBackup() on " + packageInfo.packageName);
                    }
                }
                try {
                    entity.write(buf, 0, dataSize);
                } catch (IOException e) {
                    Log.e(TAG, "Unable to update key file " + entityFile.getAbsolutePath());
                    return TRANSPORT_ERROR;
                } finally {
                    entity.close();
                }
            } else {
                entityFile.delete();
            }
        }
        return TRANSPORT_OK;
    } catch (IOException e) {
        // oops, something went wrong.  abort the operation and return error.
        Log.v(TAG, "Exception reading backup input:", e);
        return TRANSPORT_ERROR;
    }
}