added append implementation

source_code/MODULE_marigold_vector/internal/internal_marigold_vector.h

@@ -57,8 +57,13 @@ vector_struct
 }
 vector_struct;
 
-vector_struct* vector_initialize();
+vector_struct*
+vector_initialize();
 
-void vector_free_members();
+void
+vector_free_members();
+
+bool
+vector_grow(vector_struct* vector);
 
 #endif /* INTERNAL_MARIGOLD_VECTOR_H */

source_code/MODULE_marigold_vector/marigold_vector.c

@@ -1,6 +1,7 @@
 #include "marigold_vector.h"
 
 #include <stdio.h>
+#include <string.h>
 
 vector_struct*
 vector_create(size_t item_size,
@@ -85,9 +86,38 @@ vector_get_raw_data_pointer(const vector_struct* vector)
 }
 
 bool
-vector_append(vector_struct* vector, const void* element)
+vector_append(vector_struct* vector,
+              const void* element)
 {
+        const bool is_thread_safe = vector_is_thread_safe(vector);
+        if (is_thread_safe)
+        { /* if thread safe enabled, locking before vector modification. */
+                pthread_mutex_lock(vector->mutex_lock);
+        }
 
+        if (vector->current_occupancy == vector->current_capacity)
+        {
+                if (!vector_grow(vector))
+                { /* failed to grow vector (probably out of memory)*/
+                        if (is_thread_safe)
+                        { /* unlocking mutex during fail case if it is locked. */
+                                pthread_mutex_unlock(vector->mutex_lock);
+                        }
+                        return false; /* returns false to show append failed. */
+                }
+        }
+
+        char* data = (char*)vector->data_pointer;
+        size_t offset = vector->current_occupancy * vector->item_size;
+        memcpy(data + offset, element, vector->item_size);
+        vector->current_occupancy++;
+
+        if (is_thread_safe)
+        { /* unlocking mutex post vector modification if it exists/is locked. */
+                pthread_mutex_unlock(vector->mutex_lock);
+        }
+
+        return true; /* returns true to show append success. */
 }
 
 bool