UInt32.cc

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00001 
00002 // -*- mode: c++; c-basic-offset:4 -*-
00003 
00004 // This file is part of libdap, A C++ implementation of the OPeNDAP Data
00005 // Access Protocol.
00006 
00007 // Copyright (c) 2002,2003 OPeNDAP, Inc.
00008 // Author: James Gallagher <jgallagher@opendap.org>
00009 //
00010 // This library is free software; you can redistribute it and/or
00011 // modify it under the terms of the GNU Lesser General Public
00012 // License as published by the Free Software Foundation; either
00013 // version 2.1 of the License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00023 //
00024 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
00025 
00026 // (c) COPYRIGHT URI/MIT 1999
00027 // Please read the full copyright statement in the file COPYRIGHT_URI.
00028 //
00029 // Authors:
00030 //      jhrg,jimg       James Gallagher <jgallagher@gso.uri.edu>
00031 
00032 // Implementation for Int32.
00033 //
00034 // jhrg 9/7/94
00035 
00036 
00037 #include "config.h"
00038 
00039 static char rcsid[] not_used =
00040     {"$Id: UInt32.cc 16088 2007-03-28 21:42:19Z jimg $"
00041     };
00042 
00043 #include <stdlib.h>
00044 
00045 #include "UInt32.h"
00046 #include "DDS.h"
00047 #include "util.h"
00048 #include "parser.h"
00049 //#include "ce_expr.tab.h"
00050 #include "Operators.h"
00051 #include "dods-limits.h"
00052 #include "debug.h"
00053 #include "InternalErr.h"
00054 
00055 
00056 using std::cerr;
00057 using std::endl;
00058 
00059 UInt32::UInt32(const string &n)
00060         : BaseType(n, dods_uint32_c, (xdrproc_t)XDR_UINT32)
00061 {}
00062 
00063 UInt32::UInt32(const UInt32 &copy_from) : BaseType(copy_from)
00064 {
00065     _buf = copy_from._buf;
00066 }
00067 
00068 BaseType *
00069 UInt32::ptr_duplicate()
00070 {
00071     return new UInt32(*this);
00072 }
00073 
00074 UInt32 &
00075 UInt32::operator=(const UInt32 &rhs)
00076 {
00077     if (this == &rhs)
00078         return *this;
00079 
00080     dynamic_cast<BaseType &>(*this) = rhs;
00081 
00082     _buf = rhs._buf;
00083 
00084     return *this;
00085 }
00086 
00087 unsigned int
00088 UInt32::width()
00089 {
00090     return sizeof(dods_uint32);
00091 }
00092 
00093 bool
00094 UInt32::serialize(const string &dataset, ConstraintEvaluator &eval, DDS &dds,
00095                   XDR *sink, bool ce_eval)
00096 {
00097     dds.timeout_on();
00098 
00099     if (!read_p())
00100         read(dataset);  // read() throws Error and InternalErr
00101 
00102 #if EVAL
00103     if (ce_eval && !eval.eval_selection(dds, dataset))
00104         return true;
00105 #endif
00106 
00107     dds.timeout_off();
00108 
00109     if (!XDR_UINT32(sink, &_buf))
00110         throw Error("Network I/O Error. Could not send uint 32 data. This may be due to a\nbug in libdap or a problem with the network connection.");
00111 
00112     return true;
00113 }
00114 
00115 bool
00116 UInt32::deserialize(XDR *source, DDS *, bool)
00117 {
00118     if (!XDR_UINT32(source, &_buf))
00119         throw Error("Network I/O Error. Could not read uint 32 data. This may be due to a\nbug in libdap or a problem with the network connection.");
00120 
00121     return false;
00122 }
00123 
00124 unsigned int
00125 UInt32::val2buf(void *val, bool)
00126 {
00127 
00128     // Jose Garcia
00129     // This method is public therefore and I believe it has being designed
00130     // to be use by read which must be implemented on the surrogated library,
00131     // thus if the pointer val is NULL, is an Internal Error.
00132     if (!val)
00133         throw InternalErr(__FILE__, __LINE__,
00134                           "The incoming pointer does not contain any data.");
00135 
00136     _buf = *(dods_uint32 *)val;
00137 
00138     return width();
00139 }
00140 
00141 unsigned int
00142 UInt32::buf2val(void **val)
00143 {
00144     // Jose Garcia
00145     // The same comment justifying throwing an Error in val2buf applies here.
00146     if (!val)
00147         throw InternalErr(__FILE__, __LINE__, "NULL pointer.");
00148 
00149     if (!*val)
00150         *val = new dods_uint32;
00151 
00152     *(dods_uint32 *)*val = _buf;
00153 
00154     return width();
00155 }
00156 
00157 dods_uint32
00158 UInt32::value() const
00159 {
00160     return _buf;
00161 }
00162 
00163 bool
00164 UInt32::set_value(dods_uint32 i)
00165 {
00166     _buf = i;
00167     set_read_p(true);
00168 
00169     return true;
00170 }
00171 
00172 void
00173 UInt32::print_val(FILE *out, string space, bool print_decl_p)
00174 {
00175     if (print_decl_p) {
00176         print_decl(out, space, false);
00177         fprintf(out, " = %u;\n", (unsigned int)_buf) ;
00178     }
00179     else
00180         fprintf(out, "%u", (unsigned int)_buf) ;
00181 }
00182 
00183 bool
00184 UInt32::ops(BaseType *b, int op, const string &dataset)
00185 {
00186     // Extract the Byte arg's value.
00187     if (!read_p() && !read(dataset)) {
00188         // Jose Garcia
00189         // Since the read method is virtual and implemented outside
00190         // libdap++ if we can not read the data that is the problem
00191         // of the user or of whoever wrote the surrogate library
00192         // implemeting read therefore it is an internal error.
00193         throw InternalErr(__FILE__, __LINE__, "This value was not read!");
00194     }
00195 
00196     // Extract the second arg's value.
00197     if (!b->read_p() && !b->read(dataset)) {
00198         // Jose Garcia
00199         // Since the read method is virtual and implemented outside
00200         // libdap++ if we can not read the data that is the problem
00201         // of the user or of whoever wrote the surrogate library
00202         // implemeting read therefore it is an internal error.
00203         throw InternalErr(__FILE__, __LINE__, "This value was not read!");
00204     }
00205 
00206     switch (b->type()) {
00207     case dods_byte_c:
00208         return rops<dods_uint32, dods_byte, Cmp<dods_uint32, dods_byte> >
00209                (_buf, dynamic_cast<Byte *>(b)->_buf, op);
00210     case dods_int16_c:
00211         return rops<dods_uint32, dods_int16, USCmp<dods_uint32, dods_int16> >
00212                (_buf, dynamic_cast<Int16 *>(b)->_buf, op);
00213     case dods_uint16_c:
00214         return rops<dods_uint32, dods_uint16, Cmp<dods_uint32, dods_uint16> >
00215                (_buf, dynamic_cast<UInt16 *>(b)->_buf, op);
00216     case dods_int32_c:
00217         return rops<dods_uint32, dods_int32, USCmp<dods_uint32, dods_int32> >
00218                (_buf, dynamic_cast<Int32 *>(b)->_buf, op);
00219     case dods_uint32_c:
00220         return rops<dods_uint32, dods_uint32, Cmp<dods_uint32, dods_uint32> >
00221                (_buf, dynamic_cast<UInt32 *>(b)->_buf, op);
00222     case dods_float32_c:
00223         return rops<dods_uint32, dods_float32, Cmp<dods_uint32, dods_float32> >
00224                (_buf, dynamic_cast<Float32 *>(b)->_buf, op);
00225     case dods_float64_c:
00226         return rops<dods_uint32, dods_float64, Cmp<dods_uint32, dods_float64> >
00227                (_buf, dynamic_cast<Float64 *>(b)->_buf, op);
00228     default:
00229         return false;
00230     }
00231 }
00232 
00241 void
00242 UInt32::dump(ostream &strm) const
00243 {
00244     strm << DapIndent::LMarg << "UInt32::dump - ("
00245     << (void *)this << ")" << endl ;
00246     DapIndent::Indent() ;
00247     BaseType::dump(strm) ;
00248     strm << DapIndent::LMarg << "value: " << _buf << endl ;
00249     DapIndent::UnIndent() ;
00250 }
00251 

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