Exemplo n.º 1
0
/*!
  \brief Load data block definitions (&B)

  Call VFKReader::OpenFile() before this function.

  \return number of data blocks or -1 on error
*/
int VFKReaderSQLite::ReadDataBlocks()
{
    int  nDataBlocks = -1;
    CPLString osSQL;
    const char *pszName, *pszDefn;
    IVFKDataBlock *poNewDataBlock;

    sqlite3_stmt *hStmt;

    osSQL.Printf("SELECT table_name, table_defn FROM %s", VFK_DB_TABLE);
    hStmt = PrepareStatement(osSQL.c_str());
    while(ExecuteSQL(hStmt) == OGRERR_NONE) {
        pszName = (const char*) sqlite3_column_text(hStmt, 0);
        pszDefn = (const char*) sqlite3_column_text(hStmt, 1);
        poNewDataBlock = (IVFKDataBlock *) CreateDataBlock(pszName);
        poNewDataBlock->SetGeometryType();
        poNewDataBlock->SetProperties(pszDefn);
        VFKReader::AddDataBlock(poNewDataBlock, NULL);
    }

    if (m_nDataBlockCount == 0) {
        CPL_IGNORE_RET_VAL(sqlite3_exec(m_poDB, "BEGIN", NULL, NULL, NULL));
        /* CREATE TABLE ... */
        nDataBlocks = VFKReader::ReadDataBlocks();
        CPL_IGNORE_RET_VAL(sqlite3_exec(m_poDB, "COMMIT", NULL, NULL, NULL));

        StoreInfo2DB();
    }

    return nDataBlocks;
}
Exemplo n.º 2
0
int main(int argc, char* argv[])
{
    CPLJoinableThread* hThread;

    printf("main thread %p\n", (void*)CPLGetPID());

    argc = GDALGeneralCmdLineProcessor( argc, &argv, 0 );

    CPLSetConfigOption("GDAL_CACHEMAX", "0");
    CPLSetConfigOption("GDAL_DEBUG_BLOCK_CACHE", "ON");

    MyDataset* poDS = new MyDataset();

    char buf1[] = { 1 } ;
    CPL_IGNORE_RET_VAL(GDALRasterIO(GDALGetRasterBand(poDS, 1), GF_Write, 0, 0, 1, 1, buf1, 1, 1, GDT_Byte, 0, 0));

    hThread = CPLCreateJoinableThread(thread_func, NULL);
    CPLSleep(0.3);
    CPL_IGNORE_RET_VAL(GDALRasterIO(GDALGetRasterBand(poDS, 1), GF_Write, 1, 0, 1, 1, buf1, 1, 1, GDT_Byte, 0, 0));
    GDALFlushCacheBlock();

    CPLJoinThread(hThread);

    delete poDS;
    GDALDestroyDriverManager();
    CSLDestroy( argv );

    return 0;
}
Exemplo n.º 3
0
CPLErr CTable2Dataset::SetGeoTransform( double * padfTransform )

{
    if( eAccess == GA_ReadOnly )
    {
        CPLError( CE_Failure, CPLE_NoWriteAccess,
                  "Unable to update geotransform on readonly file." );
        return CE_Failure;
    }

    if( padfTransform[2] != 0.0 || padfTransform[4] != 0.0 )
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "Rotated and sheared geotransforms not supported for CTable2." );
        return CE_Failure;
    }

    memcpy( adfGeoTransform, padfTransform, sizeof(double)*6 );

/* -------------------------------------------------------------------- */
/*      Update grid header.                                             */
/* -------------------------------------------------------------------- */
    const double dfDegToRad = M_PI / 180.0;

    // read grid header
    CPL_IGNORE_RET_VAL(VSIFSeekL( fpImage, 0, SEEK_SET ));

    char achHeader[160] = { '\0' };
    CPL_IGNORE_RET_VAL(VSIFReadL( achHeader, 1, sizeof(achHeader), fpImage ));

    // lower left origin (longitude, center of pixel, radians)
    double dfValue = (adfGeoTransform[0] + adfGeoTransform[1]*0.5) * dfDegToRad;
    CPL_LSBPTR64( &dfValue );
    memcpy( achHeader + 96, &dfValue, 8 );

    // lower left origin (latitude, center of pixel, radians)
    dfValue = (adfGeoTransform[3] + adfGeoTransform[5] * (nRasterYSize-0.5))
        * dfDegToRad;
    CPL_LSBPTR64( &dfValue );
    memcpy( achHeader + 104, &dfValue, 8 );

    // pixel width (radians)
    dfValue = adfGeoTransform[1] * dfDegToRad;
    CPL_LSBPTR64( &dfValue );
    memcpy( achHeader + 112, &dfValue, 8 );

    // pixel height (radians)
    dfValue = adfGeoTransform[5] * -1 * dfDegToRad;
    CPL_LSBPTR64( &dfValue );
    memcpy( achHeader + 120, &dfValue, 8 );

    // write grid header.
    CPL_IGNORE_RET_VAL(VSIFSeekL( fpImage, 0, SEEK_SET ));
    CPL_IGNORE_RET_VAL(VSIFWriteL( achHeader, 11, 16, fpImage ));

    return CE_None;
}
Exemplo n.º 4
0
void OGRBNALayer::WriteCoord(VSILFILE* fp, double dfX, double dfY)
{
    char szBuffer[64];
    OGRFormatDouble(szBuffer, sizeof(szBuffer), dfX, '.', poDS->GetCoordinatePrecision());
    CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "%s", szBuffer));
    CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "%s", poDS->GetCoordinateSeparator()));
    OGRFormatDouble(szBuffer, sizeof(szBuffer), dfY, '.', poDS->GetCoordinatePrecision());
    CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "%s", szBuffer));
}
Exemplo n.º 5
0
FASTDataset::~FASTDataset()

{
    FlushCache();

    CPLFree( pszDirname );
    CPLFree( pszProjection );
    for ( int i = 0; i < nBands; i++ )
        if ( fpChannels[i] )
            CPL_IGNORE_RET_VAL(VSIFCloseL( fpChannels[i] ));
    if( fpHeader != NULL )
        CPL_IGNORE_RET_VAL(VSIFCloseL( fpHeader ));
}
Exemplo n.º 6
0
void BTDataset::FlushCache()

{
    GDALDataset::FlushCache();

    if( !bHeaderModified )
        return;

    bHeaderModified = FALSE;

    CPL_IGNORE_RET_VAL(VSIFSeekL( fpImage, 0, SEEK_SET ));
    CPL_IGNORE_RET_VAL(VSIFWriteL( abyHeader, 256, 1, fpImage ));
}
Exemplo n.º 7
0
JDEMDataset::~JDEMDataset()

{
    FlushCache();
    if( fp != NULL )
        CPL_IGNORE_RET_VAL(VSIFCloseL( fp ));
}
Exemplo n.º 8
0
GSCDataset::~GSCDataset()

{
    FlushCache();
    if( fpImage != NULL )
        CPL_IGNORE_RET_VAL(VSIFCloseL( fpImage ));
}
Exemplo n.º 9
0
static int ReadInt( VSILFILE *fp )
{
    char c;
    int nRead = 0;
    char szBuffer[12];
    bool bInProlog = true;

    while( true )
    {
        if (VSIFReadL(&c, 1, 1, fp) != 1)
        {
            return 0;
        }
        if( bInProlog )
        {
            if ( !isspace( static_cast<int>(c) ) )
            {
                bInProlog = false;
            }
        }
        if( !bInProlog )
        {
            if( c != '-' && c != '+' && !(c >= '0' && c <= '9') )
            {
                CPL_IGNORE_RET_VAL(VSIFSeekL(fp, VSIFTellL(fp) - 1, SEEK_SET));
                break;
            }
            if( nRead < 11 )
                szBuffer[nRead] = c;
            nRead ++;
        }
    }
    szBuffer[std::min(nRead, 11)] = 0;
    return atoi(szBuffer);
}
Exemplo n.º 10
0
static CPLErr PAuxDelete( const char * pszBasename )

{
    VSILFILE *fp = VSIFOpenL( CPLResetExtension( pszBasename, "aux" ), "r" );
    if( fp == NULL )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "%s does not appear to be a PAux dataset, there is no .aux file.",
                  pszBasename );
        return CE_Failure;
    }

    const char *pszLine = CPLReadLineL( fp );
    CPL_IGNORE_RET_VAL(VSIFCloseL( fp ));

    if( pszLine == NULL || !STARTS_WITH_CI(pszLine, "AuxilaryTarget") )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "%s does not appear to be a PAux dataset,\n"
                  "the .aux file does not start with AuxilaryTarget",
                  pszBasename );
        return CE_Failure;
    }

    if( VSIUnlink( pszBasename ) != 0 )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "OS unlinking file %s.", pszBasename );
        return CE_Failure;
    }

    VSIUnlink( CPLResetExtension( pszBasename, "aux" ) );

    return CE_None;
}
Exemplo n.º 11
0
CPLErr JDEMRasterBand::IReadBlock( CPL_UNUSED int nBlockXOff,
                                   int nBlockYOff,
                                   void * pImage )

{
    JDEMDataset *poGDS = static_cast<JDEMDataset *>(poDS);

    if (pszRecord == nullptr)
    {
        if (bBufferAllocFailed)
            return CE_Failure;

        pszRecord = static_cast<char *>(VSI_MALLOC_VERBOSE(nRecordSize));
        if (pszRecord == nullptr)
        {
            bBufferAllocFailed = true;
            return CE_Failure;
        }
    }

    CPL_IGNORE_RET_VAL(
        VSIFSeekL(poGDS->fp, 1011 + nRecordSize * nBlockYOff, SEEK_SET));

    CPL_IGNORE_RET_VAL(VSIFReadL(pszRecord, 1, nRecordSize, poGDS->fp));

    if( !EQUALN(reinterpret_cast<char *>(poGDS->abyHeader), pszRecord, 6) )
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "JDEM Scanline corrupt.  Perhaps file was not transferred "
                 "in binary mode?");
        return CE_Failure;
    }

    if( JDEMGetField(pszRecord + 6, 3) != nBlockYOff + 1 )
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "JDEM scanline out of order, JDEM driver does not "
                 "currently support partial datasets.");
        return CE_Failure;
    }

    for( int i = 0; i < nBlockXSize; i++ )
        static_cast<float *>(pImage)[i] =
            JDEMGetField(pszRecord + 9 + 5 * i, 5) * 0.1f;

    return CE_None;
}
Exemplo n.º 12
0
DOQ1Dataset::~DOQ1Dataset()

{
    FlushCache();

    CPLFree( pszProjection );
    if( fpImage != NULL )
        CPL_IGNORE_RET_VAL(VSIFCloseL( fpImage ));
}
Exemplo n.º 13
0
USGSDEMDataset::~USGSDEMDataset()

{
    FlushCache();

    CPLFree( pszProjection );
    if( fp != nullptr )
        CPL_IGNORE_RET_VAL(VSIFCloseL( fp ));
}
Exemplo n.º 14
0
static void GDALWriteIMDMultiLine( VSILFILE *fp, const char *pszValue )

{
    char **papszItems = CSLTokenizeStringComplex( pszValue, "(,) ",
                                                  FALSE, FALSE );
    const int nItemCount = CSLCount(papszItems);

    CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "(\n" ));

    for( int i = 0; i < nItemCount; i++ )
    {
        if( i == nItemCount-1 )
            CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "\t%s );\n", papszItems[i] ));
        else
            CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "\t%s,\n", papszItems[i] ));
    }
    CSLDestroy( papszItems );
}
Exemplo n.º 15
0
GDALDataset *JDEMDataset::Open( GDALOpenInfo *poOpenInfo )

{
    // Confirm that the header is compatible with a JDEM dataset.
    if (!Identify(poOpenInfo))
        return nullptr;

    // Confirm the requested access is supported.
    if( poOpenInfo->eAccess == GA_Update )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "The JDEM driver does not support update access to existing "
                 "datasets.");
        return nullptr;
    }

    // Check that the file pointer from GDALOpenInfo* is available.
    if( poOpenInfo->fpL == nullptr )
    {
        return nullptr;
    }

    // Create a corresponding GDALDataset.
    JDEMDataset *poDS = new JDEMDataset();

    // Borrow the file pointer from GDALOpenInfo*.
    poDS->fp = poOpenInfo->fpL;
    poOpenInfo->fpL = nullptr;

    // Read the header.
    CPL_IGNORE_RET_VAL(VSIFReadL(poDS->abyHeader, 1, 1012, poDS->fp));

    const char *psHeader = reinterpret_cast<char *>(poDS->abyHeader);
    poDS->nRasterXSize = JDEMGetField(psHeader + 23, 3);
    poDS->nRasterYSize = JDEMGetField(psHeader + 26, 3);
    if( poDS->nRasterXSize <= 0 || poDS->nRasterYSize <= 0 )
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "Invalid dimensions : %d x %d",
                 poDS->nRasterXSize, poDS->nRasterYSize);
        delete poDS;
        return nullptr;
    }

    // Create band information objects.
    poDS->SetBand(1, new JDEMRasterBand(poDS, 1));

    // Initialize any PAM information.
    poDS->SetDescription(poOpenInfo->pszFilename);
    poDS->TryLoadXML();

    // Check for overviews.
    poDS->oOvManager.Initialize(poDS, poOpenInfo->pszFilename);

    return poDS;
}
Exemplo n.º 16
0
void HFADictionary::Dump( FILE * fp )

{
    CPL_IGNORE_RET_VAL(VSIFPrintf( fp, "\nHFADictionary:\n" ));

    for( int i = 0; i < nTypes; i++ )
    {
        papoTypes[i]->Dump( fp );
    }
}
Exemplo n.º 17
0
void OGRBNALayer::ResetReading()

{
    if( fpBNA == NULL )
        return;
    eof = FALSE;
    failed = FALSE;
    curLine = 0;
    nNextFID = 0;
    CPL_IGNORE_RET_VAL(VSIFSeekL( fpBNA, 0, SEEK_SET ));
}
Exemplo n.º 18
0
static toff_t
_tiffSizeProc(thandle_t th)
{
    GDALTiffHandle* psGTH = (GDALTiffHandle*) th;
    vsi_l_offset  old_off;
    toff_t        file_size;

    if( psGTH->bAtEndOfFile )
    {
        return (toff_t) psGTH->nExpectedPos;
    }

    old_off = VSIFTellL( psGTH->fpL );
    CPL_IGNORE_RET_VAL(VSIFSeekL( psGTH->fpL, 0, SEEK_END ));

    file_size = (toff_t) VSIFTellL( psGTH->fpL );
    CPL_IGNORE_RET_VAL(VSIFSeekL( psGTH->fpL, old_off, SEEK_SET ));

    return file_size;
}
Exemplo n.º 19
0
CPLErr LANDataset::SetGeoTransform( double * padfTransform )

{
    unsigned char abyHeader[128] = { '\0' };

    memcpy( adfGeoTransform, padfTransform, sizeof(double) * 6 );

    CPL_IGNORE_RET_VAL(VSIFSeekL( fpImage, 0, SEEK_SET ));
    CPL_IGNORE_RET_VAL(VSIFReadL( abyHeader, 128, 1, fpImage ));

    // Upper Left X.
    float f32Val = static_cast<float>(
        adfGeoTransform[0] + 0.5 * adfGeoTransform[1] );
    memcpy( abyHeader + 112, &f32Val, 4 );

    // Upper Left Y.
    f32Val = static_cast<float>(
        adfGeoTransform[3] + 0.5 * adfGeoTransform[5] );
    memcpy( abyHeader + 116, &f32Val, 4 );

    // Width of pixel.
    f32Val = static_cast<float>( adfGeoTransform[1] );
    memcpy( abyHeader + 120, &f32Val, 4 );

    // Height of pixel.
    f32Val = static_cast<float>( std::abs( adfGeoTransform[5] ) );
    memcpy( abyHeader + 124, &f32Val, 4 );

    if( VSIFSeekL( fpImage, 0, SEEK_SET ) != 0
        || VSIFWriteL( abyHeader, 128, 1, fpImage ) != 1 )
    {
        CPLError( CE_Failure, CPLE_FileIO,
                  "File IO Error writing header with new geotransform." );
        return CE_Failure;
    }

    return CE_None;
}
Exemplo n.º 20
0
HDF5ImageRasterBand::HDF5ImageRasterBand( HDF5ImageDataset *poDSIn, int nBandIn,
                                          GDALDataType eType ) :
    bNoDataSet(false),
    dfNoDataValue(-9999.0)
{
    poDS = poDSIn;
    nBand = nBandIn;
    eDataType     = eType;
    nBlockXSize   = poDS->GetRasterXSize( );
    nBlockYSize   = 1;

/* -------------------------------------------------------------------- */
/*      Take a copy of Global Metadata since  I can't pass Raster       */
/*      variable to Iterate function.                                   */
/* -------------------------------------------------------------------- */
    char **papszMetaGlobal = CSLDuplicate( poDSIn->papszMetadata );
    CSLDestroy( poDSIn->papszMetadata );
    poDSIn->papszMetadata = NULL;

    if( poDSIn->poH5Objects->nType == H5G_DATASET ) {
        poDSIn->CreateMetadata( poDSIn->poH5Objects, H5G_DATASET );
    }

/* -------------------------------------------------------------------- */
/*      Recover Global Metadata and set Band Metadata                   */
/* -------------------------------------------------------------------- */

    SetMetadata( poDSIn->papszMetadata );

    CSLDestroy( poDSIn->papszMetadata );
    poDSIn->papszMetadata = CSLDuplicate( papszMetaGlobal );
    CSLDestroy( papszMetaGlobal );

    /* check for chunksize and set it as the blocksize (optimizes read) */
    const hid_t listid = H5Dget_create_plist(poDSIn->dataset_id);
    if (listid>0)
    {
        if(H5Pget_layout(listid) == H5D_CHUNKED)
        {
            hsize_t panChunkDims[3] = {0, 0, 0};
            const int nDimSize = H5Pget_chunk(listid, 3, panChunkDims);
            CPL_IGNORE_RET_VAL(nDimSize);
            CPLAssert(nDimSize == poDSIn->ndims);
            nBlockXSize   = (int) panChunkDims[poDSIn->GetXIndex()];
            nBlockYSize   = (int) panChunkDims[poDSIn->GetYIndex()];
        }

        H5Pclose(listid);
    }
}
Exemplo n.º 21
0
void OGRBNALayer::WriteFeatureAttributes(VSILFILE* fp, OGRFeature *poFeature )
{
    OGRFieldDefn *poFieldDefn;
    int nbOutID = poDS->GetNbOutId();
    if (nbOutID < 0)
        nbOutID = poFeatureDefn->GetFieldCount();
    for(int i = 0; i < nbOutID; i++ )
    {
        if (i < poFeatureDefn->GetFieldCount())
        {
            poFieldDefn = poFeatureDefn->GetFieldDefn( i );
            if( poFeature->IsFieldSet( i ) )
            {
                if (poFieldDefn->GetType() == OFTReal)
                {
                    char szBuffer[64];
                    OGRFormatDouble(szBuffer, sizeof(szBuffer),
                                    poFeature->GetFieldAsDouble(i), '.');
                    CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "\"%s\",", szBuffer));
                }
                else
                {
                    const char *pszRaw = poFeature->GetFieldAsString( i );
                    CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "\"%s\",", pszRaw));
                }
            }
            else
            {
                CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "\"\","));
            }
        }
        else
        {
            CPL_IGNORE_RET_VAL(VSIFPrintfL( fp, "\"\","));
        }
    }
}
Exemplo n.º 22
0
static void USGSDEMSetCurrentFilePos( Buffer* psBuffer, vsi_l_offset nNewPos )
{
    vsi_l_offset nCurPosFP = VSIFTellL(psBuffer->fp);
    if( nNewPos >= nCurPosFP - psBuffer->buffer_size && nNewPos < nCurPosFP )
    {
        psBuffer->cur_index =
            static_cast<int>(nNewPos - (nCurPosFP - psBuffer->buffer_size));
    }
    else
    {
        CPL_IGNORE_RET_VAL( VSIFSeekL(psBuffer->fp, nNewPos, SEEK_SET) );
        psBuffer->buffer_size = 0;
        psBuffer->cur_index = 0;
    }
}
Exemplo n.º 23
0
static double DConvert( VSILFILE *fp, int nCharCount )

{
    char szBuffer[100];

    CPL_IGNORE_RET_VAL(VSIFReadL( szBuffer, nCharCount, 1, fp ));
    szBuffer[nCharCount] = '\0';

    for( int i = 0; i < nCharCount; i++ )
    {
        if( szBuffer[i] == 'D' )
            szBuffer[i] = 'E';
    }

    return CPLAtof(szBuffer);
}
Exemplo n.º 24
0
static void ReadRaster(GDALDataset* poDS, int nXSize, int nYSize, int nBands,
                       GByte* pBuffer, int nXOff, int nYOff, int nXWin, int nYWin)
{
    CPL_IGNORE_RET_VAL(poDS->RasterIO(GF_Read, nXOff, nYOff, nXWin, nYWin,
                    pBuffer, nXWin, nYWin,
                    GDT_Byte,
                    nBands, NULL,
                    0, 0, 0
#ifdef GDAL_COMPILATION
                    , NULL
#endif
                    ));
    if( bCheck )
    {
        Check(pBuffer, nXSize, nYSize, nBands,
              nXOff, nYOff, nXWin, nYWin);
    }
}
Exemplo n.º 25
0
void DDFModule::Close()

{
/* -------------------------------------------------------------------- */
/*      Close the file.                                                 */
/* -------------------------------------------------------------------- */
    if( fpDDF != NULL )
    {
        CPL_IGNORE_RET_VAL(VSIFCloseL( fpDDF ));
        fpDDF = NULL;
    }

/* -------------------------------------------------------------------- */
/*      Cleanup the working record.                                     */
/* -------------------------------------------------------------------- */
    if( poRecord != NULL )
    {
        delete poRecord;
        poRecord = NULL;
    }

/* -------------------------------------------------------------------- */
/*      Cleanup the clones.                                             */
/* -------------------------------------------------------------------- */
    for( int i = 0; i < nCloneCount; i++ )
    {
        papoClones[i]->RemoveIsCloneFlag();
        delete papoClones[i];
    }
    nCloneCount = 0;
    nMaxCloneCount = 0;
    CPLFree( papoClones );
    papoClones = NULL;

/* -------------------------------------------------------------------- */
/*      Cleanup the field definitions.                                  */
/* -------------------------------------------------------------------- */
    for( int i = 0; i < nFieldDefnCount; i++ )
        delete papoFieldDefns[i];
    CPLFree( papoFieldDefns );
    papoFieldDefns = NULL;
    nFieldDefnCount = 0;
}
Exemplo n.º 26
0
CPLErr GNMGenericNetwork::DisconnectAll()
{
    if(!m_bIsGraphLoaded && LoadGraph() != CE_None)
    {
        return CE_Failure;
    }
    // delete everything from m_pGraphLayer

    OGRFeature *poFeature;
    m_poGraphLayer->ResetReading();
    while ((poFeature = m_poGraphLayer->GetNextFeature()) != NULL)
    {
        CPL_IGNORE_RET_VAL(m_poGraphLayer->DeleteFeature(poFeature->GetFID()));
        OGRFeature::DestroyFeature( poFeature );
    }

    m_oGraph.Clear();

    return CE_None;
}
Exemplo n.º 27
0
int CPLSpawn(const char * const papszArgv[], VSILFILE* fin, VSILFILE* fout,
             int bDisplayErr)
{
    CPLSpawnedProcess* sp = CPLSpawnAsync(NULL, papszArgv, TRUE, TRUE, TRUE, NULL);
    if( sp == NULL )
        return -1;

    CPL_FILE_HANDLE in_child = CPLSpawnAsyncGetOutputFileHandle(sp);
    if (fin != NULL)
        FillPipeFromFile(fin, in_child);
    CPLSpawnAsyncCloseOutputFileHandle(sp);

    CPL_FILE_HANDLE out_child = CPLSpawnAsyncGetInputFileHandle(sp);
    if (fout != NULL)
        FillFileFromPipe(out_child, fout);
    CPLSpawnAsyncCloseInputFileHandle(sp);

    CPL_FILE_HANDLE err_child = CPLSpawnAsyncGetErrorFileHandle(sp);
    CPLString osName;
    osName.Printf("/vsimem/child_stderr_" CPL_FRMT_GIB, CPLGetPID());
    VSILFILE* ferr = VSIFOpenL(osName.c_str(), "w");

    FillFileFromPipe(err_child, ferr);
    CPLSpawnAsyncCloseErrorFileHandle(sp);

    CPL_IGNORE_RET_VAL(VSIFCloseL(ferr));
    vsi_l_offset nDataLength = 0;
    GByte* pData = VSIGetMemFileBuffer(osName.c_str(), &nDataLength, TRUE);
    if( nDataLength > 0 )
        pData[nDataLength-1] = '\0';
    if( pData && strstr(
            const_cast<const char *>( reinterpret_cast<char *>( pData ) ),
            "An error occurred while forking process") != NULL )
        bDisplayErr = TRUE;
    if( pData && bDisplayErr )
        CPLError(CE_Failure, CPLE_AppDefined, "[%s error] %s", papszArgv[0], pData);
    CPLFree(pData);

    return CPLSpawnAsyncFinish(sp, TRUE, FALSE);
}
Exemplo n.º 28
0
/**
 * GDALCheckFileHeader()
 */
bool GDALCheckFileHeader(const CPLString& soFilePath,
                         const char * pszTestString, int nBufferSize)
{
    VSILFILE* fpL = VSIFOpenL( soFilePath, "r" );
    if( fpL == NULL )
        return false;
    char *pBuffer = new char[nBufferSize + 1];
    pBuffer[nBufferSize] = '\0';
    const int nReadBytes = static_cast<int>(
        VSIFReadL( pBuffer, 1, nBufferSize, fpL ) );
    CPL_IGNORE_RET_VAL(VSIFCloseL(fpL));
    if(nReadBytes == 0)
    {
        delete [] pBuffer;
        return false;
    }

    const bool bResult = strstr(pBuffer, pszTestString) != NULL;
    delete [] pBuffer;

    return bResult;
}
Exemplo n.º 29
0
CPLErr GNMGenericNetwork::DeleteAllRules()
{
    CPLString soFilter;
    soFilter.Printf("%s LIKE '%s%%'", GNM_SYSFIELD_PARAMNAME, GNM_MD_RULE);
    m_poMetadataLayer->SetAttributeFilter(soFilter);

    m_poMetadataLayer->ResetReading();
    OGRFeature *poFeature;
    std::vector<GIntBig> aFIDs;
    while((poFeature = m_poMetadataLayer->GetNextFeature()) != NULL)
    {
        aFIDs.push_back(poFeature->GetFID());
        OGRFeature::DestroyFeature(poFeature);
    }

    m_poMetadataLayer->SetAttributeFilter(NULL);
    for(size_t i = 0; i < aFIDs.size(); ++i)
    {
        CPL_IGNORE_RET_VAL(m_poMetadataLayer->DeleteFeature(aFIDs[i]));
    }

    return CE_None;
}
Exemplo n.º 30
0
static
char* CPLLoadContentFromFile(const char* pszFilename)
{
    VSILFILE* fp = VSIFOpenL(pszFilename, "rb");
    if (fp == NULL)
        return NULL;
    vsi_l_offset nSize;
    if( VSIFSeekL(fp, 0, SEEK_END) != 0 )
    {
        CPL_IGNORE_RET_VAL(VSIFCloseL(fp));
        return NULL;
    }
    nSize = VSIFTellL(fp);
    if( VSIFSeekL(fp, 0, SEEK_SET) != 0 )
    {
        CPL_IGNORE_RET_VAL(VSIFCloseL(fp));
        return NULL;
    }
    if ((vsi_l_offset)(int)nSize != nSize ||
            nSize > INT_MAX - 1 )
    {
        CPL_IGNORE_RET_VAL(VSIFCloseL(fp));
        return NULL;
    }
    char* pszBuffer = (char*)VSIMalloc((size_t)nSize + 1);
    if (pszBuffer == NULL)
    {
        CPL_IGNORE_RET_VAL(VSIFCloseL(fp));
        return NULL;
    }
    if( (size_t)VSIFReadL(pszBuffer, 1, (size_t)nSize, fp) != (size_t)nSize )
    {
        VSIFree(pszBuffer);
        CPL_IGNORE_RET_VAL(VSIFCloseL(fp));
        return NULL;
    }
    pszBuffer[nSize] = '\0';
    CPL_IGNORE_RET_VAL(VSIFCloseL(fp));
    return pszBuffer;
}