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netcdf-c/ncgen/genjjni.c
dmh c99058741a [NCF-265] 
Ncgen is unable to resolve
ambiguous references to an enum
constant when two different enums
have same econstant name.

Solved by allowing more specific
forms for econstant references.
1. /.../enumname.enumconstname
2. enumname.enumconstname
3. enumconstname

Case 1 is resolved by using the econstant
in the specific enum definition. If none is
found, an error is reported.

Case 2 is resolved by
1. finding an enclosing group with an
   enum definition with the specified name
   and containing the specified econstant.
   If there are more than one, then an error is reported
2. finding all enum definitions in the dataset that have
   the specified enum name and contain the specified
   econstant. If more than one is found, then an error is reported.
If the above two methods fail, then report an error.

Case 3 is similar to case 2, but all enums, irrespective
of name are used if they contains the specified enum constant.

The ref_tst_econst.cdl test in ncdump is causing ncdump
to fail. So there may be yet some problem.
2013-09-20 20:43:09 -06:00

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/*********************************************************************
* Copyright 1993, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
* $Header: /upc/share/CVS/netcdf-3/ncgen/genjjni.c,v 1.6 2010/04/04 19:39:46 dmh Exp $
*********************************************************************/
#include "includes.h"
#ifdef ENABLE_JAVA
#undef JGDB
#undef TRACE
/*MNEMONIC*/
#define USEMEMORY 1
extern List* vlenconstants; /* List<Constant*>;*/
/* Forward */
static void genjjni_definevardata(Symbol* vsym);
static void genjjni_primattribute(Symbol*, Bytebuffer*, unsigned long);
static void genjjni_scalarprim(Symbol* var, Bytebuffer* code);
static const char* jgroupncid(Symbol*);
static const char* jtypencid(Symbol*);
static const char* jvarncid(Symbol*);
static const char* jdimncid(Symbol*);
#ifdef USE_NETCDF4
static void definejtype(Symbol*);
static char* jprefixed(List* prefix, char* suffix, char* separator);
static void genjjni_deftype(Symbol*);
static void definespecialattributes(Symbol* vsym);
#endif
static int jputvaraprim(Putvar*, Odometer*, Bytebuffer*, size_t*);
static void genjjni_defineattribute(Symbol* asym);
static void genjjni_definevardata(Symbol*);
static void computemaxunlimited(void);
/*
Global Bytebuffer into which to store the C code output;
periodically dumped to file by jflush().
Defined in genjstd.c.
*/
extern Bytebuffer* jcode;
/*
* Generate code for creating netCDF from in-memory structure.
*/
void
gen_ncjava_jni(const char *filename)
{
int idim, ivar, iatt, maxdims;
int ndims, nvars, natts, ngatts, ngrps, ntyps;
char* cmode_string;
#ifdef USE_NETCDF4
int igrp,ityp;
#endif
jcode = bbNew();
bbSetalloc(jcode,C_MAX_STMT);
ndims = listlength(dimdefs);
nvars = listlength(vardefs);
natts = listlength(attdefs);
ngatts = listlength(gattdefs);
ngrps = listlength(grpdefs);
ntyps = listlength(typdefs);
/* Construct the main class */
#ifdef JGDB
jline("import java.io.*;");
#endif
jline("import java.util.*;");
jline("import netcdf.*;");
jline("import static netcdf.Constants.*;");
jline("import static netcdf.Netcdf.*;");
jline("");
jpartial("public class ");
jline(mainname);
jline("{");
/* Do static initializations */
jline("");
jline("static {");
jlined(1,"System.loadLibrary(\"ncjni\");");
jlined(1,"Netcdf.init();");
jline("}");
jline("");
jline("static long memory = Memory.create(); /* For storing data */");
#ifdef USE_NETCDF4
if (ntyps > 0) {
for(ityp = 0; ityp < ntyps; ityp++) {
Symbol* tsym = (Symbol*)listget(typdefs,ityp);
definejtype(tsym);
}
bbCat(jcode,"");
}
jflush();
/*
Define vlen constants; For java, this is done in
two parts. Part 1 (here) defines the constants and part 2
fills them in.
*/
{
jflush(); /* dump code to this point*/
genjjni_vlenconstants(vlenconstants,jcode);
jline("");
}
/* Construct the chunking constants*/
if(!usingclassic) {
for(ivar=0;ivar<nvars;ivar++) {
Bytebuffer* tmp = bbNew();
Symbol* var = (Symbol*)listget(vardefs,ivar);
Specialdata* special = &var->var.special;
if(special->flags & _CHUNKSIZE_FLAG) {
int i;
size_t* chunks = special->_ChunkSizes;
if(special->nchunks == 0 || chunks == NULL) continue;
bbClear(tmp);
for(i=0;i<special->nchunks;i++) {
nprintf(stmt,sizeof(stmt),"%s%ld",
(i == 0?"":", "),special->_ChunkSizes[i]);
bbCat(tmp,stmt);
}
nprintf(stmt,sizeof(stmt),"static final long[] %s_chunksizes = {",
jname(var),special->nchunks);
jpartial(stmt);
jprint(tmp);
jline("} ;");
}
}
jline("");
}
#endif /*USE_NETCDF4*/
jline("static public void");
jline("check_err(int stat) throws Exception");
jline("{");
jlined(1,"if (stat != NC_NOERR) {");
jlined(2,"System.err.println(\"Failed: \"+nc_strerror(stat));");
jlined(2,"throw new Exception(nc_strerror(stat));");
jlined(1,"}");
jline("}");
jline("");
/* Now construct the main procedure*/
jline("static public void main(String[] argv) throws Exception");
nprintf(stmt,sizeof(stmt), "{ /* create %s */",filename);
jline(stmt);
/* create necessary declarations */
jline("");
jlined(1,"int stat; /* return status */");
jlined(1,"int ncid; /* netCDF id */");
jlined(1,"int[] ncidp = new int[1]; /* netCDF id return */");
jflush();
/*
Define vlen constants Part 2.
The idea is to walk all the data lists
whose variable type has a vlen and collect
the vlen data and define a constant for it.
*/
jline("");
jflush(); /* dump code to this point*/
genjjni_vlendata(vlenconstants,jcode);
#ifdef JGDB
jline("{");
jline("System.out.print(\"go?\");");
jline("BufferedReader rin = new BufferedReader(new InputStreamReader(System.in));");
jline("rin.readLine();");
jline("}");
#endif
#ifdef USE_NETCDF4
/* Define variables to hold group ids*/
if(!usingclassic) {
jline("");
jlined(1,"/* group ids */");
}
if(!usingclassic && ngrps > 0) {
for(igrp = 0; igrp < ngrps; igrp++) {
Symbol* gsym = (Symbol*)listget(grpdefs,igrp);
nprintf(stmt,sizeof(stmt),"int %s;",jgroupncid(gsym));
jlined(1,stmt);
}
}
/* define variables to hold type ids*/
if(!usingclassic && ntyps > 0) {
jline("");
jlined(1,"/* type ids */");
for(ityp = 0; ityp < ntyps; ityp++) {
Symbol* tsym = (Symbol*)listget(typdefs,ityp);
nprintf(stmt,sizeof(stmt),"int %s;",jtypencid(tsym));
jlined(1,stmt);
}
}
jflush();
#endif
if (ndims > 0) {
jline("");
jlined(1,"/* dimension ids */");
for(idim = 0; idim < ndims; idim++) {
Symbol* dsym = (Symbol*)listget(dimdefs,idim);
nprintf(stmt,sizeof(stmt),"int %s;",jdimncid(dsym));
jlined(1,stmt);
}
jline("");
jlined(1,"/* dimension lengths */");
for(idim = 0; idim < ndims; idim++) {
Symbol* dsym = (Symbol*)listget(dimdefs,idim);
if (dsym->dim.size == NC_UNLIMITED) {
nprintf(stmt,sizeof(stmt),"%sfinal long %s_len = NC_UNLIMITED;",
indented(1),jname(dsym));
} else {
nprintf(stmt,sizeof(stmt),"%sfinal long %s_len = %lu;",
indented(1),
jname(dsym),
(unsigned long) dsym->dim.size);
}
jline(stmt);
}
}
jflush();
maxdims = 0; /* most dimensions of any variable */
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
if(vsym->typ.dimset.ndims > maxdims)
maxdims = vsym->typ.dimset.ndims;
}
if (nvars > 0) {
jline("");
jlined(1,"/* variable ids */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
nprintf(stmt,sizeof(stmt),"int %s;", jvarncid(vsym));
jlined(1,stmt);
}
jline("");
jlined(1,"/* rank (number of dimensions) for each variable */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
nprintf(stmt,sizeof(stmt),"final int RANK_%s = %d;",
jname(vsym),vsym->typ.dimset.ndims);
jlined(1,stmt);
}
if (maxdims > 0) { /* we have dimensioned variables */
jline("");
jlined(1,"/* variable shapes */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
if (vsym->typ.dimset.ndims > 0) {
nprintf(stmt,sizeof(stmt),"final int[] %s_dims = new int[RANK_%s];",
jname(vsym), jname(vsym));
jlined(1,stmt);
}
}
}
}
jflush();
/* create netCDF file, uses NC_CLOBBER mode */
jline("");
jlined(1,"/* enter define mode */");
if (!cmode_modifier) {
cmode_string = "NC_CLOBBER";
} else if (cmode_modifier & NC_64BIT_OFFSET) {
cmode_string = "NC_CLOBBER|NC_64BIT_OFFSET";
#ifdef USE_NETCDF4
} else if (cmode_modifier & NC_CLASSIC_MODEL) {
cmode_string = "NC_CLOBBER|NC_NETCDF4|NC_CLASSIC_MODEL";
} else if (cmode_modifier & NC_NETCDF4) {
cmode_string = "NC_CLOBBER|NC_NETCDF4";
#endif
} else {
derror("unknown cmode modifier");
cmode_string = "NC_CLOBBER";
}
nprintf(stmt,sizeof(stmt),"check_err(nc_create(\"%s\", %s, ncidp));",
filename,cmode_string);
jlined(1,stmt);
jlined(1,"ncid = ncidp[0];");
jflush();
#ifdef USE_NETCDF4
/* Define the group structure */
/* ncid created above is also root group*/
if(!usingclassic) {
nprintf(stmt,sizeof(stmt),"%s = ncid;",jgroupncid(rootgroup));
jlined(1,stmt);
/* walking grpdefs list will do a preorder walk of all defined groups*/
for(igrp=0;igrp<listlength(grpdefs);igrp++) {
Symbol* gsym = (Symbol*)listget(grpdefs,igrp);
if(gsym == rootgroup) continue; /* ignore root*/
if(gsym->container == NULL)
PANIC("null container");
nprintf(stmt,sizeof(stmt),
"check_err(nc_def_grp(%s, \"%s\", ncidp));",
jgroupncid(gsym->container),
gsym->name);
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"%s = ncidp[0];",jgroupncid(gsym));
jlined(1,stmt);
}
jflush();
}
#endif
#ifdef USE_NETCDF4
/* Construct code to define types*/
if(ntyps > 0) {
jline("");
for(ityp = 0; ityp < ntyps; ityp++) {
Symbol* tsym = (Symbol*)listget(typdefs,ityp);
if(tsym->subclass == NC_PRIM
|| tsym->subclass == NC_ARRAY) continue; /* no need to do these*/
genjjni_deftype(tsym);
jline("");
}
}
jflush();
#endif
/* define dimensions from info in dims array */
if (ndims > 0) {
jline("");
jlined(1,"/* define dimensions */");
for(idim = 0; idim < ndims; idim++) {
Symbol* dsym = (Symbol*)listget(dimdefs,idim);
nprintf(stmt,sizeof(stmt),
"check_err(nc_def_dim(%s, \"%s\", %s_len, ncidp));",
jgroupncid(dsym->container),
jescapifyname(dsym->name), jname(dsym));
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"%s = ncidp[0];",jdimncid(dsym));
jlined(1,stmt);
}
}
jflush();
/* define variables from info in vars array */
if (nvars > 0) {
jline("");
jlined(1,"/* define variables */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
Symbol* basetype = vsym->typ.basetype;
Dimset* dimset = &vsym->typ.dimset;
jline("");
if(dimset->ndims > 0) {
for(idim = 0; idim < dimset->ndims; idim++) {
Symbol* dsym = dimset->dimsyms[idim];
nprintf(stmt,sizeof(stmt),
"%s_dims[%d] = %s;",
jname(vsym),
idim,
jdimncid(dsym));
jlined(1,stmt);
}
}
nprintf(stmt,sizeof(stmt),
"check_err(nc_def_var(%s, \"%s\", %s, RANK_%s, %s, ncidp));",
jgroupncid(vsym->container),
jescapifyname(vsym->name),
jtypencid(basetype),
jname(vsym),
(dimset->ndims == 0?"null":poolcat(jname(vsym),"_dims")));
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"%s = ncidp[0];",jvarncid(vsym));
jlined(1,stmt);
#ifdef USE_NETCDF4
definespecialattributes(vsym);
#endif /*USE_NETCDF4*/
}
}
jflush();
/* Define the global attributes*/
if(ngatts > 0) {
jline("");
jlined(1,"/* assign global attributes */");
for(iatt = 0; iatt < ngatts; iatt++) {
Symbol* gasym = (Symbol*)listget(gattdefs,iatt);
genjjni_defineattribute(gasym);
}
jline("");
}
jflush();
/* Define the variable specific attributes*/
if(natts > 0) {
jline("");
jlined(1,"/* assign per-variable attributes */");
for(iatt = 0; iatt < natts; iatt++) {
Symbol* asym = (Symbol*)listget(attdefs,iatt);
genjjni_defineattribute(asym);
}
jline("");
}
jflush();
if (nofill_flag) {
jlined(1,"/* don't initialize variables with fill values */");
jlined(1,"check_err(nc_set_fill(%s, NC_NOFILL, 0));");
}
jline("");
jlined(1,"/* leave define mode */");
nprintf(stmt,sizeof(stmt),"check_err(nc_enddef(%s));",
jgroupncid(rootgroup));
jlined(1,stmt);
jflush();
/* Load values into those variables with defined data */
if(nvars > 0) {
jline("");
jlined(1,"/* assign variable data */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
if(vsym->data != NULL) genjjni_definevardata(vsym);
}
jline("");
/* compute the max actual size of the unlimited dimension*/
if(usingclassic) computemaxunlimited();
}
jflush();
}
void
cl_java_jni(void)
{
nprintf(stmt,sizeof(stmt),"check_err(nc_close(%s));",
jgroupncid(rootgroup));
jlined(1,stmt);
jline("}"); /* main */
jline("}"); /* class Main */
jflush();
}
#ifdef USE_NETCDF4
static void
definespecialattributes(Symbol* vsym)
{
Specialdata* special = &vsym->var.special;
if(usingclassic) return;
if(special->flags & _STORAGE_FLAG) {
int storage = special->_Storage;
size_t* chunks = special->_ChunkSizes;
nprintf(stmt,sizeof(stmt),
"%scheck_err(nc_def_var_chunking(%s, %s, %s, ",
indented(1),
jgroupncid(vsym->container),
jvarncid(vsym),
(storage == NC_CONTIGUOUS?"NC_CONTIGUOUS":"NC_CHUNKED"));
jpartial(stmt);
if(special->nchunks == 0 || chunks == NULL)
jpartial("new long[]{}");
else {
nprintf(stmt,sizeof(stmt),"%s_chunksizes",jname(vsym));
jpartial(stmt);
}
jline("));");
}
if(special->flags & _FLETCHER32_FLAG) {
nprintf(stmt,sizeof(stmt),
"check_err(nc_def_var_fletcher32(%s, %s, %d));",
jgroupncid(vsym->container),
jvarncid(vsym),
special->_Fletcher32);
jlined(1,stmt);
}
if(special->flags & (_DEFLATE_FLAG | _SHUFFLE_FLAG)) {
nprintf(stmt,sizeof(stmt),
"check_err(nc_def_var_deflate(%s, %s, %s, %d, %d));",
jgroupncid(vsym->container),
jvarncid(vsym),
(special->_Shuffle == 1?"NC_SHUFFLE":"NC_NOSHUFFLE"),
(special->_DeflateLevel >= 0?1:0),
(special->_DeflateLevel >= 0?special->_DeflateLevel:0));
jlined(1,stmt);
}
if(special->flags & _ENDIAN_FLAG) {
nprintf(stmt,sizeof(stmt),
"check_err(nc_def_var_endian(%s, %s, %s));",
jgroupncid(vsym->container),
jvarncid(vsym),
(special->_Endianness == NC_ENDIAN_LITTLE?"NC_ENDIAN_LITTLE"
:"NC_ENDIAN_BIG")
);
jlined(1,stmt);
}
if(special->flags & _NOFILL_FLAG) {
nprintf(stmt,sizeof(stmt),
"check_err(nc_def_var_fill(%s, %s, %s));",
jgroupncid(vsym->container),
jvarncid(vsym),
(special->_Fill?"NC_FILL":"NC_NOFILL")
);
jlined(1,stmt);
}
}
#endif /*USE_NETCDF4*/
/*
* Return java type name for netCDF type, given type code.
*/
const char*
jtype(nc_type type)
{
switch (type) {
case NC_CHAR: return "char";
case NC_BYTE: return "byte";
case NC_SHORT: return "short";
case NC_INT: return "int";
case NC_FLOAT: return "float";
case NC_DOUBLE: return "double";
case NC_UBYTE: return "long";
case NC_USHORT: return "long";
case NC_UINT: return "long";
case NC_INT64: return "long";
case NC_UINT64: return "long";
case NC_STRING: return "String";
case NC_ENUM: return "int";
case NC_OPAQUE: return "String";
default: PANIC1("ncctype: bad type code:%d",type);
}
return 0;
}
/*
* Return a type name and dimensions for constant arrays
* for netCDF type, given type code.
*/
const char*
jarraytype(nc_type type)
{
switch (type) {
case NC_CHAR:
return "String";
case NC_BYTE:
return "byte";
case NC_SHORT:
return "short";
case NC_INT:
return "int";
case NC_FLOAT:
return "float";
case NC_DOUBLE:
return "double";
case NC_UBYTE:
return "long";
case NC_USHORT:
return "long";
case NC_UINT:
return "long";
case NC_INT64:
return "long";
case NC_UINT64:
return "long";
case NC_STRING:
return "String";
case NC_ENUM:
return "int";
case NC_OPAQUE:
return "String";
default:
PANIC1("ncctype: bad type code:%d",type);
}
return 0;
}
/*
* Return netcdf interface type name for netCDF type suffix, given type code.
*/
const char*
jstype(nc_type nctype)
{
switch (nctype) {
case NC_CHAR:
return "text";
case NC_BYTE:
return "schar";
case NC_SHORT:
return "short";
case NC_INT:
return "int";
case NC_FLOAT:
return "float";
case NC_DOUBLE:
return "double";
case NC_UBYTE:
return "ubyte";
case NC_USHORT:
return "ushort";
case NC_UINT:
return "uint";
case NC_INT64:
return "longlong";
case NC_UINT64:
return "ulonglong";
case NC_STRING:
return "string";
case NC_OPAQUE:
return "opaque";
case NC_ENUM:
return "enum";
default:
derror("ncstype: bad type code: %d",nctype);
return 0;
}
}
/* Return the group name for the specified group*/
static const char*
jgroupncid(Symbol* sym)
{
#ifdef USE_NETCDF4
if(usingclassic) {
return "ncid";
} else {
char* grptmp;
const char* tmp1;
if(sym == NULL) return jgroupncid(rootgroup);
ASSERT(sym->objectclass == NC_GRP);
tmp1 = jname(sym);
grptmp = poolalloc(strlen(tmp1)+strlen("_grp")+1);
strcpy(grptmp,tmp1);
strcat(grptmp,"_grp");
return grptmp;
}
#else
return "ncid";
#endif
}
/* Compute the name for a given type's id*/
/* Watch out: the result is a pool alloc*/
static const char*
jtypencid(Symbol* tsym)
{
char* typtmp;
const char* tmp1;
if(tsym->subclass == NC_PRIM)
return nctype(tsym->typ.typecode);
tmp1 = jtypename(tsym);
typtmp = poolalloc(strlen(tmp1)+strlen("_typ")+1);
strcpy(typtmp,tmp1);
strcat(typtmp,"_typ");
return typtmp;
}
/* Compute the name for a given var's id*/
/* Watch out: the result is a static*/
static const char*
jvarncid(Symbol* vsym)
{
const char* tmp1;
char* vartmp;
tmp1 = jname(vsym);
vartmp = poolalloc(strlen(tmp1)+strlen("_id")+1);
strcpy(vartmp,tmp1);
strcat(vartmp,"_id");
return vartmp;
}
/* Compute the name for a given dim's id*/
/* Watch out: the result is a static*/
static const char*
jdimncid(Symbol* dsym)
{
const char* tmp1;
char* dimtmp;
tmp1 = jname(dsym);
dimtmp = poolalloc(strlen(tmp1)+strlen("_dim")+1);
strcpy(dimtmp,tmp1);
strcat(dimtmp,"_dim");
return dimtmp;
}
/* Compute the C name for a given type*/
const char*
jtypename(Symbol* tsym)
{
const char* name;
ASSERT(tsym->objectclass == NC_TYPE);
if(tsym->subclass == NC_PRIM)
name = jtype(tsym->typ.typecode);
else
name = jname(tsym);
return name;
}
#ifdef USE_NETCDF4
/*
Only generate type info for enumerations
*/
static void
definejtype(Symbol* tsym)
{
int i;
int nconst;
ASSERT(tsym->objectclass == NC_TYPE);
if(tsym->subclass != NC_ENUM) return;
/* start enum def */
nprintf(stmt,sizeof(stmt),"enum %s {",jtypename(tsym));
jline(stmt);
/* define the constants */
nconst = listlength(tsym->subnodes);
for(i=0;i<nconst;i++) {
Symbol* econst = (Symbol*)listget(tsym->subnodes,i);
ASSERT(econst->subclass == NC_ECONST);
nprintf(stmt,sizeof(stmt),"%s%s(%s)%s",
indented(1),
jtypename(econst),
jconst(&econst->typ.econst),
(i == (nconst - 1)?";":","));
jlined(1,stmt);
}
/* add boilerplate */
nprintf(stmt,sizeof(stmt),"private final %s value;",
jtypename(tsym->typ.basetype));
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"%s(%s value) {this.value = value;}",
jtypename(tsym),jtypename(tsym->typ.basetype));
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"public %s value() {return this.value;}",
jtypename(tsym->typ.basetype));
jlined(1,stmt);
jline("}");
}
/*
Generate the code for defining a given type
*/
static void
genjjni_deftype(Symbol* tsym)
{
int i;
ASSERT(tsym->objectclass == NC_TYPE);
switch (tsym->subclass) {
case NC_PRIM: break; /* these are already taken care of*/
case NC_OPAQUE:
nprintf(stmt,sizeof(stmt),"check_err(nc_def_opaque(%s, %lu, \"%s\", ncidp));",
jgroupncid(tsym->container),
tsym->typ.size,
jescapifyname(tsym->name));
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"%s = ncidp[0];",jtypencid(tsym));
jlined(1,stmt);
break;
case NC_ENUM:
jlined(1,"{");
jlined(1,stmt);
jlined(1,"long econst;");
nprintf(stmt,sizeof(stmt),"check_err(nc_def_enum(%s, %s, \"%s\", ncidp));",
jgroupncid(tsym->container),
nctype(tsym->typ.basetype->typ.typecode),
jname(tsym));
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"%s = ncidp[0];",jtypencid(tsym));
jlined(1,stmt);
for(i=0;i<listlength(tsym->subnodes);i++) {
Symbol* econst = (Symbol*)listget(tsym->subnodes,i);
ASSERT(econst->subclass == NC_ECONST);
nprintf(stmt,sizeof(stmt),"econst = (long)%s.%s.value();",
jname(tsym),
jname(econst));
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"check_err(nc_insert_enum(%s, %s, \"%s\", econst));",
jgroupncid(tsym->container), jtypencid(tsym),
jescapifyname(econst->name));
jlined(1,stmt);
}
jlined(1,"}");
break;
case NC_VLEN:
nprintf(stmt,sizeof(stmt),"stat = nc_def_vlen(%s, \"%s\", %s, ncidp);",
jgroupncid(tsym->container),
jescapifyname(tsym->name),
jtypencid(tsym->typ.basetype));
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"%s = ncidp[0];",jtypencid(tsym));
jlined(1,stmt);
break;
case NC_COMPOUND:
/* We cannot use sizeof(), so use the computed size */
nprintf(stmt,sizeof(stmt),"check_err(nc_def_compound(%s, %ld, \"%s\", ncidp));",
jgroupncid(tsym->container),
(unsigned long)tsym->typ.size,
jtypename(tsym),
tsym->name);
jlined(1,stmt);
nprintf(stmt,sizeof(stmt),"%s = ncidp[0];",jtypencid(tsym));
jlined(1,stmt);
/* Generate the field dimension constants*/
jlined(1,"{");
for(i=0;i<listlength(tsym->subnodes);i++) {
int j;
Symbol* efield = (Symbol*)listget(tsym->subnodes,i);
ASSERT(efield->subclass == NC_FIELD);
if(efield->typ.dimset.ndims == 0) continue;
nprintf(stmt,sizeof(stmt),"final int %s_dims[] = new int[] {",
jname(efield));
for(j=0;j<efield->typ.dimset.ndims;j++) {
char tmp[256];
Symbol* e = efield->typ.dimset.dimsyms[j];
ASSERT(e->dim.isconstant);
sprintf(tmp,"%u",e->dim.size);
strcat(stmt,(j==0?"":", "));
strcat(stmt,tmp);
}
strcat(stmt,"};");
jlined(1,stmt);
}
for(i=0;i<listlength(tsym->subnodes);i++) {
Symbol* efield = (Symbol*)listget(tsym->subnodes,i);
char tmp[1024];
ASSERT(efield->subclass == NC_FIELD);
sprintf(tmp,"%lu",efield->typ.offset);
if(efield->typ.dimset.ndims > 0){
nprintf(stmt,sizeof(stmt),"check_err(nc_insert_array_compound(%s, %s, \"%s\", %s, %s, %d, %s_dims));",
jgroupncid(tsym->container),
jtypencid(tsym),
jescapifyname(efield->name),
tmp,
jtypencid(efield->typ.basetype),
efield->typ.dimset.ndims,
jname(efield));
} else {
nprintf(stmt,sizeof(stmt),"check_err(nc_insert_compound(%s, %s, \"%s\", %s, %s));",
jgroupncid(tsym->container),
jtypencid(tsym),
jescapifyname(efield->name),
tmp,
jtypencid(efield->typ.basetype));
}
jlined(1,stmt);
}
jlined(1,"}");
break;
case NC_ARRAY:
/* ignore: this will be handled by def_var*/
break;
default: panic("genjjni_deftype: unexpected type subclass: %d",tsym->subclass);
}
}
#endif
static void
genjjni_defineattribute(Symbol* asym)
{
unsigned long len;
Datalist* list;
Symbol* basetype = asym->typ.basetype;
Bytebuffer* code = NULL; /* capture other decls*/
list = asym->data;
if(list == NULL) PANIC("empty attribute list");
len = asym->att.count;
if(len == 0) PANIC("empty attribute list");
nprintf(stmt,sizeof(stmt),"/* attribute: %s */",asym->name);
jlined(1,stmt);
code = bbNew();
genjjni_attrdata(asym,code);
/* Handle primitives separately */
if(isprimplus(basetype->typ.typecode)) {
if(basetype->typ.typecode != NC_CHAR) commify(code);
genjjni_primattribute(asym, code, len);
} else { /* User defined type */
#ifndef USE_NETCDF4
verror("Non-classic type: %s",nctypename(basetype->typ.typecode));
#else /* USE_NETCDF4 */
if(usingclassic && !isclassicprim(basetype->typ.typecode)) {
verror("Non-classic type: %s",nctypename(basetype->typ.typecode));
return;
}
/* Dump the generation code */
jprint(code);
nprintf(stmt,sizeof(stmt),"check_err(nc_put_att_memory(%s, %s, \"%s\", %s, %lu, memory));",
jgroupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:jvarncid(asym->att.var)),
jescapifyname(asym->name),
jtypencid(basetype),
len);
jlined(1,stmt);
#endif
}
bbFree(code);
}
static void
genjjni_primattribute(Symbol* asym, Bytebuffer* code, unsigned long len)
{
Symbol* basetype = asym->typ.basetype;
nc_type typecode = basetype->typ.typecode;
/* Handle NC_CHAR specially */
if(typecode == NC_CHAR) {
/* revise the length count */
len = bbLength(code);
if(len == 0) {bbAppend(code,'\0'); len++;}
jquotestring(code,'"');
} else {
/* Convert to constant */
char* code2 = bbDup(code);
bbClear(code);
nprintf(stmt,sizeof(stmt),"new %s[]",
jarraytype(typecode));
bbCat(code,stmt);
bbCat(code,"{");
bbCat(code,code2);
bbCat(code,"}");
efree(code2);
}
switch (typecode) {
case NC_BYTE:
case NC_SHORT:
case NC_INT:
case NC_FLOAT:
case NC_DOUBLE:
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_att_%s(%s, %s, \"%s\", %s, %lu, ",
indented(1),
jstype(basetype->typ.typecode),
jgroupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:jvarncid(asym->att.var)),
jescapifyname(asym->name),
jtypencid(basetype),
len);
jpartial(stmt);
jprint(code);
jline("));");
jflush();
break;
case NC_CHAR:
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_att_%s(%s, %s, \"%s\", %lu, ",
indented(1),
jstype(basetype->typ.typecode),
jgroupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:jvarncid(asym->att.var)),
jescapifyname(asym->name),
len);
jpartial(stmt);
jprint(code);
jline("));");
jflush();
break;
#ifdef USING_NETCDF4
/* !usingclassic only (except NC_STRING) */
case NC_UBYTE:
case NC_USHORT:
case NC_UINT:
case NC_INT64:
case NC_UINT64:
case NC_STRING:
if(usingclassic) {
verror("Non-classic type: %s",njtypename(basetype->typ.typecode));
return;
}
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_att_%s(%s, %s, \"%s\", %s, %lu, ",
indented(1),
jstype(basetype->typ.typecode),
jgroupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:jvarncid(asym->att.var)),
jescapifyname(asym->name),
jtypencid(basetype),
len);
jpartial(stmt);
jprint(code);
jline("));");
jflush();
break;
#endif
default: break;
}
}
static void
computemaxunlimited(void)
{
int i;
unsigned long maxsize;
Symbol* udim = rootgroup->grp.unlimiteddim;
if(udim == NULL) return; /* there is no unlimited dimension*/
/* Look at each variable and see what*/
/* size it gives to the unlimited dim (if any)*/
maxsize = 0;
for(i=0;i<listlength(vardefs);i++) {
Symbol* dim;
Symbol* var = (Symbol*)listget(vardefs,i);
if(var->typ.dimset.ndims == 0) continue; /* rank == 0*/
dim = var->typ.dimset.dimsyms[0];
if(dim->dim.size != NC_UNLIMITED) continue; /* var does not use unlimited*/
if(var->typ.dimset.dimsyms[0]->dim.size > maxsize)
maxsize = var->typ.dimset.dimsyms[0]->dim.size;
}
}
/* Define the put_vara closure function for C data*/
/*
Important assumptions:
1. The leftmost changed index controls the count set.
2. All indices to the right of #1 are assumed to be at there
max values.
*/
static int
jputvara(struct Putvar* closure, Odometer* odom, Bytebuffer* databuf)
{
int i;
int stat = NC_NOERR;
size_t startset[NC_MAX_VAR_DIMS];
size_t countset[NC_MAX_VAR_DIMS];
Symbol* vsym = closure->var;
Symbol* basetype = vsym->typ.basetype;
Dimset* dimset = &vsym->typ.dimset;
Bytebuffer* code = closure->code;
char dimstring[NC_MAX_VAR_DIMS*2+1];
size_t count;
nc_type typecode = basetype->typ.typecode;
memset((void*)startset,0,sizeof(startset));
memset((void*)countset,0,sizeof(countset));
#ifdef TRACE
fprintf(stderr,"putvara: %s: ",vsym->name);
fprintf(stderr,"odom = %s\n",odometerprint(odom));
fprintf(stderr,"initial startset = [");
for(i=0;i<closure->rank;i++) fprintf(stderr,"%s%u",(i>0?", ":""),closure->startset[i]);
fprintf(stderr,"]\n");
fflush(stderr);
#endif
/* Compute base on a change in the 0th dimension*/
for(i=1;i<closure->rank;i++) {
startset[i] = 0;
countset[i] = odom->dims[i].datasize;
}
startset[0] = closure->startset[0];
countset[0] = odom->dims[0].index - startset[0];
#ifdef TRACE
{
fprintf(stderr,"startset = [");
for(i=0;i<closure->rank;i++) fprintf(stderr,"%s%u",(i>0?", ":""),startset[i]);
fprintf(stderr,"] ");
fprintf(stderr,"countset = [");
for(i=0;i<closure->rank;i++) fprintf(stderr,"%s%u",(i>0?", ":""),countset[i]);
fprintf(stderr,"]\n");
fflush(stderr);
}
#endif
/* generate constants for data*/
count = 1;
dimstring[0] = '\0';
for(i=0;i<dimset->ndims;i++) {
count *= countset[i];
strcat(dimstring,"[]");
}
/* define a block to avoid name clashes*/
nprintf(stmt,sizeof(stmt),"%s{\n",indented(1));
bbCat(code,stmt);
/* generate constants for startset, countset*/
nprintf(stmt,sizeof(stmt),"%slong[] %s_startset = new long[] {",
indented(1),
jname(vsym));
bbCat(code,stmt);
for(i=0;i<closure->rank;i++) {
nprintf(stmt,sizeof(stmt),"%s%lu",(i>0?", ":""),startset[i]);
bbCat(code,stmt);
}
bbCat(code,"} ;\n");
nprintf(stmt,sizeof(stmt),"%slong[] %s_countset = new long[] {",
indented(1),
jname(vsym));
bbCat(code,stmt);
for(i=0;i<closure->rank;i++) {
nprintf(stmt,sizeof(stmt),"%s%lu",(i>0?", ":""),countset[i]);
bbCat(code,stmt);
}
bbCat(code,"} ;\n");
/* Handle primitives separately */
if(isprimplus(typecode)) {
jputvaraprim(closure, odom,databuf,countset);
} else { /* User defined type */
#ifndef USE_NETCDF4
verror("Non-classic type: %s",nctypename(basetype->typ.typecode));
#else /* USE_NETCDF4 */
if(usingclassic && !isclassicprim(basetype->typ.typecode)) {
verror("Non-classic type: %s",nctypename(basetype->typ.typecode));
return NC_EINVAL;
}
/* Dump the generation code */
bbCat(code,bbContents(databuf));
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_vara_memory(%s, %s, %s_startset, %s_countset, memory));\n",
indented(1),
jgroupncid(vsym->container),
jvarncid(vsym),
jname(vsym),
jname(vsym));
bbCat(code,stmt);
#endif
}
/* end defined block*/
nprintf(stmt,sizeof(stmt),"%s}\n",indented(1));
bbCat(code,stmt);
for(i=0;i<closure->rank;i++) {
closure->startset[i] = startset[i] + countset[i];
}
bbClear(databuf);
return stat;
}
static int
jputvaraprim(struct Putvar* closure, Odometer* odom, Bytebuffer* databuf, size_t* countset)
{
int i;
Symbol* vsym = closure->var;
Symbol* basetype = vsym->typ.basetype;
Dimset* dimset = &vsym->typ.dimset;
Bytebuffer* code = closure->code;
size_t len;
nc_type typecode = basetype->typ.typecode;
/* generate constants for data*/
len = 1;
for(i=0;i<dimset->ndims;i++) {
len *= countset[i];
}
/* Handle NC_CHAR specially */
if(typecode == NC_CHAR) {
/* revise the length count */
len = bbLength(databuf);
if(len == 0) {bbAppend(databuf,'\0'); len++;}
jquotestring(databuf,'"');
} else {
/* Convert to constant */
char* databuf2;
commify(databuf);
databuf2 = bbDup(databuf);
bbClear(databuf);
nprintf(stmt,sizeof(stmt),"new %s[]",
jarraytype(typecode));
bbCat(databuf,stmt);
bbCat(databuf,"{");
bbCat(databuf,databuf2);
bbCat(databuf,"}");
efree(databuf2);
}
switch (typecode) {
case NC_BYTE:
case NC_SHORT:
case NC_INT:
case NC_FLOAT:
case NC_DOUBLE:
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_vara_%s(%s, %s, %s_startset, %s_countset, ",
indented(1),
jstype(basetype->typ.typecode),
jgroupncid(vsym->container),
jvarncid(vsym),
jname(vsym),
jname(vsym));
bbCat(code,stmt);
bbCat(code,bbContents(databuf));
bbCat(code,"));\n");
break;
case NC_CHAR:
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_vara_%s(%s, %s, %s_startset, %s_countset, ",
indented(1),
jstype(basetype->typ.typecode),
jgroupncid(vsym->container),
jvarncid(vsym),
jname(vsym),
jname(vsym));
bbCat(code,stmt);
bbCat(code,bbContents(databuf));
bbCat(code,"));\n");
break;
#ifdef USE_NETCDF4
/* !usingclassic only (except NC_STRING) */
case NC_UBYTE:
case NC_USHORT:
case NC_UINT:
case NC_INT64:
case NC_UINT64:
case NC_STRING:
if(usingclassic) {
verror("Non-classic type: %s",nctypename(typecode));
return NC_EINVAL;
}
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_vara_%s(%s, %s, %s_startset, %s_countset, ",
indented(1),
jstype(basetype->typ.typecode),
jgroupncid(vsym->container),
jvarncid(vsym),
jname(vsym),
jname(vsym));
bbCat(code,stmt);
bbCat(code,bbContents(databuf));
bbCat(code,"));\n");
break;
case NC_ENUM:
case NC_OPAQUE:
if(usingclassic) {
verror("Non-classic type: %s",nctypename(typecode));
return NC_EINVAL;
}
/* We use some augmented vara procedures */
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_vara_%s(%s, %s, %s_startset, %s_countset, ",
indented(1),
(typecode == NC_ENUM?"enum":"opaque"),
jgroupncid(vsym->container),
jvarncid(vsym),
jname(vsym),
jname(vsym));
bbCat(code,stmt);
bbCat(code,bbContents(databuf));
bbCat(code,"));\n");
break;
#endif
default:
verror("Non-classic type: %s",nctypename(typecode));
}
bbClear(databuf);
return NC_NOERR;
}
static void
genjjni_definevardata(Symbol* vsym)
{
Dimset* dimset = &vsym->typ.dimset;
Symbol* basetype = vsym->typ.basetype;
int rank = dimset->ndims;
int isscalar = (dimset->ndims == 0);
Bytebuffer* code;
nc_type typecode = basetype->typ.typecode;
if(vsym->data == NULL) return;
code = bbNew();
/* Handle special cases first*/
if(isscalar) {
genjjni_scalardata(vsym,code);
if(isprimplus(typecode)) {
genjjni_scalarprim(vsym,code);
} else {
nprintf(stmt,sizeof(stmt),"check_err(nc_put_var_memory(%s, %s, memory));",
jgroupncid(vsym->container),
jvarncid(vsym));
jlined(1,stmt);
}
} else { /* Non-scalar*/
Bytebuffer* databuf;
/* build a closure*/
Putvar closure;
closure.putvar = jputvara;
closure.rank = rank;
closure.code = code;
closure.var = vsym;
memset(closure.startset,0,sizeof(closure.startset));
/* Most complex case; use closure as needed*/
/* Use a separate data buffer to capture the data list*/
databuf = bbNew();
genjjni_arraydata(vsym,&closure,databuf);
jprint(code);
bbFree(databuf);
}
bbFree(code);
}
static void
genjjni_scalarprim(Symbol* var, Bytebuffer* code)
{
Symbol* basetype = var->typ.basetype;
nc_type typecode = basetype->typ.typecode;
switch (typecode) {
case NC_BYTE:
case NC_SHORT:
case NC_INT:
case NC_FLOAT:
case NC_DOUBLE:
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_var_%s(%s, %s, (%s)",
indented(1),
ncstype(basetype->typ.typecode),
jgroupncid(var->container),
jvarncid(var),
jtype(basetype->typ.typecode));
jpartial(stmt);
jprint(code);
jline("));");
jflush();
break;
case NC_CHAR:
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_var_%s(%s, %s, ",
indented(1),
ncstype(basetype->typ.typecode),
jgroupncid(var->container),
jvarncid(var));
jpartial(stmt);
jprint(code);
jline("));");
jflush();
break;
#ifdef USING_NETCDF4
/* !usingclassic only (except NC_STRING) */
case NC_UBYTE:
case NC_USHORT:
case NC_UINT:
case NC_INT64:
case NC_UINT64:
case NC_STRING:
if(usingclassic) {
verror("Non-classic type: %s",njtypename(basetype->typ.typecode));
return;
}
nprintf(stmt,sizeof(stmt),"%scheck_err(nc_put_vara_%s(%s, %s, new long[]{0}, new long[]{1}, ",
indented(1),
ncstype(basetype->typ.typecode),
jgroupncid(var->container),
jvarncid(var));
jpartial(stmt);
jprint(code);
jline("));");
jflush();
break;
#endif
default: break;
}
}
/*
* Output a statement
*/
void
jprint(Bytebuffer* buf)
{
bbAppendn(jcode,bbContents(buf),bbLength(buf));
}
void
jpartial(char* line)
{
bbCat(jcode,line);
}
void
jline(char* line)
{
jpartial(line);
bbCat(jcode,"\n");
}
void
jlined(int n, char* line)
{
bbCat(jcode,indented(n));
jline(line);
}
void
jflush(void)
{
if(bbLength(jcode) > 0) {
bbAppend(jcode,'\0');
fputs(bbContents(jcode),stdout);
fflush(stdout);
bbClear(jcode);
}
}
/* Result is a pool string or a constant => do not free*/
char*
jconst(Constant* ci)
{
char tmp[64];
tmp[0] = '\0';
switch (ci->nctype) {
case NC_CHAR:
{
strcpy(tmp,"'");
escapifychar(ci->value.charv,tmp+1,'\'');
strcat(tmp,"'");
}
break;
case NC_BYTE:
sprintf(tmp,"%hhd",ci->value.int8v);
break;
case NC_SHORT:
sprintf(tmp,"%hd",ci->value.int16v);
break;
case NC_INT:
sprintf(tmp,"%d",ci->value.int32v);
break;
case NC_FLOAT:
sprintf(tmp,"%.8g",ci->value.floatv);
break;
case NC_DOUBLE:
sprintf(tmp,"%.16g",ci->value.doublev);
break;
case NC_UBYTE:
sprintf(tmp,"%hhu",ci->value.uint8v);
break;
case NC_USHORT:
sprintf(tmp,"%hu",ci->value.uint16v);
break;
case NC_UINT:
sprintf(tmp,"%uL",ci->value.uint32v); /* upgrade to long */
break;
case NC_INT64:
sprintf(tmp,"%lldL",ci->value.int64v);
break;
case NC_UINT64: {
/* HACK to handle unsigned values */
long long l = (long)ci->value.uint64v;
sprintf(tmp,"%lldL",l);
} break;
case NC_ECONST:
sprintf(tmp,"%s",jname(ci->value.enumv));
break;
case NC_STRING:
{
char* escaped = escapify(ci->value.stringv.stringv,
'"',ci->value.stringv.len);
char* result = poolalloc(1+2+strlen(escaped));
strcpy(result,"\"");
strcat(result,escaped);
strcat(result,"\"");
return result;
}
break;
case NC_OPAQUE: {
char* bstring;
char* p;
int bslen;
bslen=(4*ci->value.opaquev.len);
bstring = poolalloc(bslen+2+1);
strcpy(bstring,"\"");
p = ci->value.opaquev.stringv;
while(*p) {
strcat(bstring,"\\x");
strncat(bstring,p,2);
p += 2;
}
strcat(bstring,"\"");
return bstring;
} break;
default: PANIC1("ncstype: bad type code: %d",ci->nctype);
}
return pooldup(tmp); /*except for NC_STRING and NC_OPAQUE*/
}
void
jquotestring(Bytebuffer* databuf, char quote)
{
char* escaped = jescapify(bbContents(databuf),'"',bbLength(databuf));
bbClear(databuf);
bbAppend(databuf,quote);
if(escaped != NULL) bbCat(databuf,escaped);
bbAppend(databuf,quote);
}
/* Compute the name for a given symbol*/
/* Cache in symbol->lname*/
const char*
jname(Symbol* sym)
{
if(sym->lname == NULL) {
#ifdef USE_NETCDF4
if(sym->subclass == NC_FIELD || sym->subclass == NC_ECONST) {
sym->lname = nulldup(jcodify(sym->name));
} else
#endif
if(sym->objectclass == NC_ATT && sym->att.var != NULL) {
/* Attribute name must be prefixed with the cname of the*/
/* associated variable*/
char* lname;
lname = (char*)emalloc(strlen(sym->att.var->name)
+strlen(sym->name)
+1+1);
lname[0] = '\0';
strcpy(lname,sym->att.var->name);
strcat(lname,"_");
strcat(lname,sym->name);
/* Now convert to java acceptable name */
sym->lname = nulldup(jcodify(lname));
} else {
/* convert to language form*/
#ifdef USE_NETCDF4
sym->lname = nulldup(jcodify(jprefixed(sym->prefix,sym->name,"_")));
#else
sym->lname = nulldup(jcodify(sym->name)); /* convert to usable form*/
#endif
}
}
return sym->lname;
}
#ifdef USE_NETCDF4
/* Result is pool alloc'd*/
static char*
jprefixed(List* prefix, char* suffix, char* separator)
{
int slen;
int plen;
int i;
char* result;
ASSERT(suffix != NULL);
plen = prefixlen(prefix);
if(prefix == NULL || plen == 0) return pooldup(suffix);
/* plen > 0*/
slen = 0;
for(i=0;i<plen;i++) {
Symbol* sym = (Symbol*)listget(prefix,i);
slen += (strlen(sym->name)+strlen(separator));
}
slen += strlen(suffix);
slen++; /* for null terminator*/
result = poolalloc(slen);
result[0] = '\0';
/* Leave off the root*/
i = (rootgroup == (Symbol*)listget(prefix,0))?1:0;
for(;i<plen;i++) {
Symbol* sym = (Symbol*)listget(prefix,i);
strcat(result,sym->name); /* append "<prefix[i]/>"*/
strcat(result,separator);
}
strcat(result,suffix); /* append "<suffix>"*/
return result;
}
#endif /*USE_NETCDF4*/
#endif /*ENABLE_JAVA*/
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