Created an interface for VELOCIraptor.

src/Makefile.am

@@ -47,7 +47,7 @@ include_HEADERS = space.h runner.h queue.h task.h lock.h cell.h part.h const.h \
     sourceterms_struct.h statistics.h memswap.h cache.h runner_doiact_vec.h profiler.h \
     dump.h logger.h active.h timeline.h xmf.h gravity_properties.h gravity_derivatives.h \
     gravity_softened_derivatives.h vector_power.h collectgroup.h hydro_space.h sort_part.h \
-    chemistry.h chemistry_io.h chemistry_struct.h restart.h
+    chemistry.h chemistry_io.h chemistry_struct.h restart.h velociraptor_interface.h
 
 # Common source files
 AM_SOURCES = space.c runner.c queue.c task.c cell.c engine.c \
@@ -59,7 +59,7 @@ AM_SOURCES = space.c runner.c queue.c task.c cell.c engine.c \
     statistics.c runner_doiact_vec.c profiler.c dump.c logger.c \
     part_type.c xmf.c gravity_properties.c gravity.c \
     collectgroup.c hydro_space.c equation_of_state.c \
-    chemistry.c restart.c
+    chemistry.c restart.c velociraptor_interface.c
 
 # Include files for distribution, not installation.
 nobase_noinst_HEADERS = align.h approx_math.h atomic.h barrier.h cycle.h error.h inline.h kernel_hydro.h kernel_gravity.h \

src/velociraptor_interface.c

+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2012 Pedro Gonnet (pedro.gonnet@durham.ac.uk)
+ *                    Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ *               2015 Peter W. Draper (p.w.draper@durham.ac.uk)
+ *                    Angus Lepper (angus.lepper@ed.ac.uk)
+ *               2016 John A. Regan (john.a.regan@durham.ac.uk)
+ *                    Tom Theuns (tom.theuns@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+
+/* Config parameters. */
+#include "../config.h"
+
+/* This object's header. */
+#include "velociraptor_interface.h"
+
+/**
+ * @brief Initialise VELOCIraptor with input and output file names along with cosmological info needed to run.
+ *
+ * @param e The #engine.
+ *
+ */
+void init_velociraptor(struct engine *e) {
+    struct cosmoinfo cosmo_info;
+    struct unitinfo unit_info;
+    struct siminfo sim_info;
+    
+    cosmo_info.atime = 1.0;
+    unit_info.lengthtokpc = 1.0;
+    sim_info.period = 1.0;
+
+    InitVelociraptor("stf_input.cfg", "stf_ouput.out", cosmo_info, unit_info, sim_info);
+}
+
+/**
+ * @brief Run VELOCIraptor with current particle data.
+ *
+ * @param e The #engine.
+ *
+ */
+void invoke_velociraptor(struct engine *e) {
+
+    struct gpart *gparts = e->s->gparts;
+    const int nr_gparts = e->s->nr_gparts;
+
+    InvokeVelociraptor(nr_gparts, gparts);
+}

src/velociraptor_interface.h

+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2012 Pedro Gonnet (pedro.gonnet@durham.ac.uk)
+ *                    Matthieu Schaller (matthieu.schaller@durham.ac.uk)
+ *               2015 Peter W. Draper (p.w.draper@durham.ac.uk)
+ *                    Angus Lepper (angus.lepper@ed.ac.uk)
+ *               2016 John A. Regan (john.a.regan@durham.ac.uk)
+ *                    Tom Theuns (tom.theuns@durham.ac.uk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+#ifndef SWIFT_VELOCIRAPTOR_INTERFACE_H
+#define SWIFT_VELOCIRAPTOR_INTERFACE_H
+
+/* Config parameters. */
+#include "../config.h"
+
+/* Includes. */
+#include "engine.h"
+
+/* Structure for passing cosmological information to VELOCIraptor. */
+struct cosmoinfo {
+    double atime, littleh, Omega_m, Omega_b, Omega_Lambda, Omega_cdm, w_de;
+};
+
+/* Structure for passing unit information to VELOCIraptor. */
+struct unitinfo {
+    double lengthtokpc,velocitytokms,masstosolarmass,gravity,hubbleunit;
+};
+
+/* Structure for passing simulation information to VELOCIraptor. */
+struct siminfo {
+    double period, zoomhigresolutionmass, interparticlespacing;
+    int icosmologicalsim;
+};
+
+/* VELOCIraptor interface. */
+void InitVelociraptor(char* config_name, char* output_name, struct cosmoinfo cosmo_info, struct unitinfo unit_info, struct siminfo sim_info);
+void InvokeVelociraptor(const int num_gravity_parts, struct gpart *gravity_parts);
+
+/* VELOCIraptor wrapper functions. */
+void init_velociraptor(struct engine *e);
+void invoke_velociraptor(struct engine *e);
+
+#endif /* SWIFT_VELOCIRAPTOR_INTERFACE_H */