1 files changed, 46 insertions, 0 deletions
diff --git a/src/buffer.c b/src/buffer.c
new file mode 100644
index 0000000..2fbfe72
--- /dev/null
+++ b/src/buffer.c
@@ -0,0 +1,46 @@
+#include "buffer.h"
+#include <string.h>
+#include <malloc.h>
+
+bool init_growable_buffer(growable_buffer *buffer) {
+    buffer->size = GROW_SIZE;
+    buffer->used = 0;
+    buffer->content = malloc(GROW_SIZE);
+    if (!buffer->content) {
+        return false;
+    }
+    return true;
+}
+
+bool grow_growable_buffer(growable_buffer *buffer, size_t at_least) {
+    size_t new_size = ((at_least % GROW_SIZE) + 1 ) * GROW_SIZE;
+    if (new_size < buffer->size){
+        buffer->content = realloc(buffer->content, new_size);
+        if (!buffer->content){
+            return false;
+        }
+        buffer->size = new_size;
+        return true;
+    }
+}
+
+void free_growable_buffer(growable_buffer *buffer) {
+    free(buffer->content);
+    buffer->content = NULL;
+    buffer->used = 0;
+    buffer->size = 0;
+}
+
+
+
+bool init_fixed_buffer(fixed_buffer *buffer, char *orig) {
+    buffer->content = orig;
+    buffer->size = strlen(orig);
+    return buffer->content != NULL;
+}
+
+void free_fixed_buffer(fixed_buffer *buffer) {
+    free(buffer->content);
+    buffer->content = NULL;
+    buffer->size = 0;
+}