Msg_reader_core::Msg_reader_core( VSILFILE* fp ) :
_lines(0),
_columns(0),
_line_start(0),
_col_start(0),
_col_dir_step(0.0f),
_line_dir_step(0.0f),
_f_data_offset(0),
_f_data_size(0),
_f_header_offset(0),
_f_header_size(0),
_visir_bytes_per_line(0),
_visir_packet_size(0),
_hrv_bytes_per_line(0),
_hrv_packet_size(0),
_interline_spacing(0),
_year(0),
_month(0),
_day(0),
_hour(0),
_minute(0),
_open_success(false)
{
memset(&_main_header, 0, sizeof(_main_header));
memset(&_sec_header, 0, sizeof(_sec_header));
SecondaryProdHeaderInit(&_sec_header);
for (size_t i=0; i < MSG_NUM_CHANNELS; ++i) {
_calibration[i].cal_slope = 0.0;
_calibration[i].cal_offset = 0.0;
}
read_metadata_block(fp);
}
static struct hash_table_entry *load_entry(struct PkgData *pdata,
long long cstart)
{
// Allocate space for decompressed metadata block.
void *udata = malloc(SQUASHFS_METADATA_SIZE);
if (!udata) {
ERROR("Failed to allocate metadata block\n");
return NULL;
}
long long cnext;
int usize = read_metadata_block(pdata, cstart, &cnext,
udata, SQUASHFS_METADATA_SIZE);
if (usize < 0) {
ERROR("Failed to read metadata block\n");
free(udata);
return NULL;
}
struct hash_table_entry *entry = malloc(sizeof(struct hash_table_entry));
if (!entry) {
ERROR("Failed to allocate hash table entry\n");
free(udata);
return NULL;
}
entry->cstart = cstart;
entry->cnext = cnext;
entry->udata = udata;
entry->usize = usize;
entry->next = NULL;
return entry;
}
Msg_reader_core::Msg_reader_core( const char* fname ) :
_lines(0),
_columns(0),
_line_start(0),
_col_start(0),
_col_dir_step(0.0f),
_line_dir_step(0.0f),
_f_data_offset(0),
_f_data_size(0),
_f_header_offset(0),
_f_header_size(0),
_visir_bytes_per_line(0),
_visir_packet_size(0),
_hrv_bytes_per_line(0),
_hrv_packet_size(0),
_interline_spacing(0),
_year(0),
_month(0),
_day(0),
_hour(0),
_minute(0),
_open_success(false)
{
memset(&_main_header, 0, sizeof(_main_header));
memset(&_sec_header, 0, sizeof(_sec_header));
SecondaryProdHeaderInit(&_sec_header);
for (size_t i=0; i < MSG_NUM_CHANNELS; ++i) {
_calibration[i].cal_slope = 0.0;
_calibration[i].cal_offset = 0.0;
}
VSILFILE* fin = VSIFOpenL(fname, "rb");
if( !fin )
{
CPLError(CE_Failure, CPLE_OpenFailed,
"Could not open file %s", fname);
return;
}
read_metadata_block(fin);
VSIFCloseL(fin);
}
