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ECC-991: Add more error handling

This commit is contained in:
Shahram Najm 2019-11-08 12:51:15 +00:00
parent 1094f9d631
commit ff8931f72f
2 changed files with 45 additions and 2 deletions
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42
src/bufr_util.c
View File

@ -537,6 +537,35 @@ static int bufr_decode_header(grib_context* c, const void* message, off_t offset
return err;
}
static int count_bufr_messages(grib_context* c, FILE* f, int* n)
{
int err=0;
void* mesg=NULL;
size_t size=0;
off_t offset=0;
int done = 0;
*n = 0;
if (!c) c=grib_context_get_default();
while(!done) {
mesg = wmo_read_bufr_from_file_malloc(f, 0, &size, &offset, &err);
/*printf("Count so far=%ld, mesg=%x, err=%d (%s)\n", *count, mesg, err, grib_get_error_message(err));*/
if (!mesg) {
if (err == GRIB_END_OF_FILE || err == GRIB_PREMATURE_END_OF_FILE) {
done = 1; /* reached the end */
}
}
if (mesg && !err) {
grib_context_free(c,mesg);
(*n)++;
}
}
rewind(f);
if (err==GRIB_END_OF_FILE) err=GRIB_SUCCESS;
return err;
}
int codes_bufr_extract_headers_malloc(grib_context* c, const char* filename, codes_bufr_header** result, int* num_messages)
{
int err = 0, i = 0;
@ -552,13 +581,18 @@ int codes_bufr_extract_headers_malloc(grib_context* c, const char* filename, cod
perror(filename);
return GRIB_IO_PROBLEM;
}
err = grib_count_in_file(c, fp, num_messages);
err = count_bufr_messages(c, fp, num_messages);
if (err) {
grib_context_log(c, GRIB_LOG_ERROR, "codes_bufr_extract_headers_malloc: Unable to count BUFR messages in file \"%s\"", filename);
fclose(fp);
return err;
}
size = *num_messages;
if (size == 0) {
grib_context_log(c, GRIB_LOG_ERROR, "codes_bufr_extract_headers_malloc: No BUFR messages in file \"%s\"", filename);
return GRIB_INVALID_MESSAGE;
}
*result = (codes_bufr_header*)calloc(size, sizeof(codes_bufr_header));
if (!*result) {
fclose(fp);
@ -575,6 +609,12 @@ int codes_bufr_extract_headers_malloc(grib_context* c, const char* filename, cod
}
grib_context_free(c, mesg);
}
if (!mesg) {
if (err != GRIB_END_OF_FILE && err != GRIB_PREMATURE_END_OF_FILE) {
/* An error occurred */
grib_context_log(c, GRIB_LOG_ERROR, "codes_bufr_extract_headers_malloc: Unable to read BUFR message");
}
}
}
fclose(fp);

5
tests/bufr_extract_headers.c
View File

@ -46,7 +46,10 @@ int main(int argc, char* argv[])
filename = argv[2];
err = codes_bufr_extract_headers_malloc(c, filename, &header_array, &num_messages);
if (err) return 1;
if (err) {
printf("ERROR: %s\n",grib_get_error_message(err));
return 1;
}
for (i=0; i < num_messages; ++i) {
codes_bufr_header bh = header_array[i];