Added new test (copy trajectory container and molsys)

Also fixed bugs in tng_trajectory_init_from_src.

Change-Id: Iaa44e79f388b7add79973165801ab3dba57b3dcf

1 files changed, 30 insertions, 13 deletions

diff --git a/src/lib/tng_io.c b/src/lib/tng_io.c
index 947df1d..ff8dd40 100644
--- a/src/lib/tng_io.c
+++ b/src/lib/tng_io.c
@@ -9219,24 +9219,38 @@ tng_function_status DECLSPECDLLEXPORT tng_trajectory_init_from_src(tng_trajector
 
     frame_set = &dest->current_trajectory_frame_set;
 
-    dest->input_file_path = malloc(strlen(src->input_file_path) + 1);
-    if(!dest->input_file_path)
+    if(src->input_file_path)
     {
-        fprintf(stderr, "TNG library: Cannot allocate memory (%d bytes). %s: %d\n",
-               (unsigned int)strlen(src->input_file_path) + 1, __FILE__, __LINE__);
-        return(TNG_CRITICAL);
+        dest->input_file_path = malloc(strlen(src->input_file_path) + 1);
+        if(!dest->input_file_path)
+        {
+            fprintf(stderr, "TNG library: Cannot allocate memory (%d bytes). %s: %d\n",
+                   (unsigned int)strlen(src->input_file_path) + 1, __FILE__, __LINE__);
+            return(TNG_CRITICAL);
+        }
+        strcpy(dest->input_file_path, src->input_file_path);
+        dest->input_file_len = src->input_file_len;
+    }
+    else
+    {
+        dest->input_file_path = 0;
     }
-    strcpy(dest->input_file_path, src->input_file_path);
     dest->input_file = 0;
-    dest->input_file_len = src->input_file_len;
-    dest->output_file_path = malloc(strlen(src->output_file_path) + 1);
-    if(!dest->output_file_path)
+    if(src->output_file_path)
     {
-        fprintf(stderr, "TNG library: Cannot allocate memory (%d bytes). %s: %d\n",
-               (unsigned int)strlen(src->output_file_path) + 1, __FILE__, __LINE__);
-        return(TNG_CRITICAL);
+        dest->output_file_path = malloc(strlen(src->output_file_path) + 1);
+        if(!dest->output_file_path)
+        {
+            fprintf(stderr, "TNG library: Cannot allocate memory (%d bytes). %s: %d\n",
+                   (unsigned int)strlen(src->output_file_path) + 1, __FILE__, __LINE__);
+            return(TNG_CRITICAL);
+        }
+        strcpy(dest->output_file_path, src->output_file_path);
+    }
+    else
+    {
+        dest->output_file_path = 0;
     }
-    strcpy(dest->output_file_path, src->output_file_path);
     dest->output_file = 0;
 
     dest->first_program_name = 0;
@@ -9291,6 +9305,9 @@ tng_function_status DECLSPECDLLEXPORT tng_trajectory_init_from_src(tng_trajector
     frame_set->tr_particle_data = 0;
     frame_set->tr_data = 0;
 
+    frame_set->n_written_frames = 0;
+    frame_set->n_unwritten_frames = 0;
+
     frame_set->next_frame_set_file_pos = -1;
     frame_set->prev_frame_set_file_pos = -1;
     frame_set->medium_stride_next_frame_set_file_pos = -1;