int main(int argc,char* argv[]) {
struct stat finfo;
char shortName[20]={0,};
size_t len=20;
grib_handle* h=NULL;
size_t fsize;
unsigned char* data=NULL;
unsigned char* p=NULL;
void* pdata=NULL;
int error=0;
int count=0;
char* filename=NULL;
FILE* f=NULL;
long level=0;
grib_context* c=grib_context_get_default();
if (argc==3 && !strcmp(argv[1],"-m")) {
grib_multi_support_on(0);
filename=argv[2];
}
else if (argc==2) filename=argv[1];
else usage(argv[0]);
f=fopen(filename,"r");
if (!f) {perror(filename);exit(1);}
fstat(fileno((FILE*)f),&finfo);
fsize=finfo.st_size;
data=(unsigned char*)malloc(fsize);
p=data;
if (!data) {
fprintf(stderr,"unable to allocate %ld bytes\n",(long)fsize);
exit(1);
}
if( fread(data, 1, fsize, f) != fsize) {
perror(filename);
exit(1);
}
fclose(f);
pdata=&data;
while ((h=grib_handle_new_from_multi_message(c,(void**)pdata,&fsize,&error))!=NULL) {
count++;
len=20;
GRIB_CHECK(grib_get_string(h,"shortName",shortName,&len),"shortName");
GRIB_CHECK(grib_get_long(h,"level",&level),"level");
printf("%d %s %ld\n",count,shortName,level);
grib_handle_delete(h);
}
free(p);
return 0;
}
int main(int argc, char** argv)
{
int err = 0;
long parameterCategory=0,parameterNumber=0,discipline=0;
FILE* in = NULL;
char* filename = "../../data/multi.grib2";
grib_handle *h = NULL;
/* turn on support for multi fields messages */
grib_multi_support_on(0);
/* turn off support for multi fields messages */
/* grib_multi_support_off(0); */
in = fopen(filename,"r");
if(!in) {
printf("ERROR: unable to open file %s\n",filename);
return 1;
}
while ((h = grib_handle_new_from_file(0,in,&err)) != NULL ) {
GRIB_CHECK(err,0);
GRIB_CHECK(grib_get_long(h,"discipline",&discipline),0);
printf("discipline=%ld\n",discipline);
GRIB_CHECK(grib_get_long(h,"parameterCategory",¶meterCategory),0);
printf("parameterCategory=%ld\n",parameterCategory);
GRIB_CHECK(grib_get_long(h,"parameterNumber",¶meterNumber),0);
printf("parameterNumber=%ld\n",parameterNumber);
if ( discipline == 0 && parameterCategory==2) {
if (parameterNumber == 2) printf("-------- u -------\n");
if (parameterNumber == 3) printf("-------- v -------\n");
}
grib_handle_delete(h);
}
fclose(in);
return 0;
}
GribFile::GribFile(const std::string & fileName) :
fileName_(fileName),
gribFile_(0)
{
WDB_LOG & log = WDB_LOG::getInstance( "wdb.gribLoad.openGrib" );
log.debugStream() << "Attempting to open GRIB file " << fileName_;
grib_multi_support_on(0);
gribFile_ = fopen( fileName_.c_str(), "r" );
if ( ! gribFile_ ) {
std::ostringstream errorMessage;
errorMessage << "Could not open the GRIB file " << fileName_;
log.errorStream() << errorMessage.str();
throw std::runtime_error( errorMessage.str() );
}
log.debugStream() << "Opened GRIB file successfully";
}
void codes_grib_multi_support_on(grib_context* c)
{
grib_multi_support_on(c);
}
