1 files changed, 85 insertions, 0 deletions
diff --git a/src/hdf5_utils.h b/src/hdf5_utils.h
new file mode 100644
index 0000000..4f6ad32
--- /dev/null
+++ b/src/hdf5_utils.h
@@ -0,0 +1,85 @@
+#ifndef HDF5_UTILS
+#define HDF5_UTILS
+
+#include <stdint.h>
+#include <stdlib.h> /* for size_t */
+
+/* Struct to hold information for each triggered event (similar to the EV bank,
+ * but with some reconstructed information).
+ *
+ * This is the struct that is written out to the 'ev' dataset in the HDF5 file.
+ *
+ * Note: If there is no FTP, FTK, or RSP info in the zdab file these values
+ * will be set to nan. */
+typedef struct HDF5Event {
+    int run;
+    int evn;
+    double gtr;
+    int nhit;
+    uint32_t gtid;
+    uint32_t trg_type;
+    uint32_t dc;
+    double ftp_x;
+    double ftp_y;
+    double ftp_z;
+    double ftk_energy;
+    double rsp_energy;
+} HDF5Event;
+
+/* Struct to hold information for each primary seed tracks that is written out
+ * as the `mcgn` dataset in the HDF5 file. To figure out which track
+ * corresponds to a given GTID you can match them up based on the evn column,
+ * which is filled with the MC event number in both datasets. */
+typedef struct HDF5MCGN {
+    int run;
+    int evn;
+    int id;
+    double energy;
+    double x;
+    double y;
+    double z;
+    double dirx;
+    double diry;
+    double dirz;
+    double time;
+} HDF5MCGN;
+
+/* Struct to hold information for each fit that is written out
+ * as the `fits` dataset in the HDF5 file.
+ *
+ * Note that the energy2, theta2, phi2 fields will only be filled in for fits
+ * with 2 tracks and similarly for energy3, theta3, and phi3 for 3 track fits. */
+typedef struct HDF5Fit {
+    int run;
+    uint32_t gtid;
+    double x;
+    double y;
+    double z;
+    double t0;
+
+    /* Number of tracks. */
+    int n;
+
+    int id1;
+    double energy1;
+    double theta1;
+    double phi1;
+
+    int id2;
+    double energy2;
+    double theta2;
+    double phi2;
+
+    int id3;
+    double energy3;
+    double theta3;
+    double phi3;
+
+    double fmin;
+    double time;
+    double psi;
+} HDF5Fit;
+
+int save_output(const char *output, HDF5Event *hdf5_events, size_t nevents, HDF5MCGN *hdf5_mcgn, size_t nmcgn, HDF5Fit *hdf5_fits, size_t nfits);
+
+#endif