diff --git a/src/log/output.c b/src/log/output.c
new file mode 100644
index 0000000..3b9918d
--- /dev/null
+++ b/src/log/output.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <string.h>
+#include <khash.h>
+#include "criterion/stats.h"
+
+typedef void criterion_reporter(FILE *stream, struct criterion_global_stats *);
+
+KHASH_MAP_INIT_STR(ht_str, criterion_reporter*)
+KHASH_MAP_INIT_STR(ht_path, const char *)
+
+static khash_t(ht_str) *reporters;
+static khash_t(ht_path) *outputs;
+
+void criterion_init_output(void) {
+    reporters = kh_init(ht_str);
+    outputs = kh_init(ht_path);
+}
+
+int criterion_register_output_provider(const char *name, criterion_reporter *reporter) {
+    int absent;
+    khint_t k = kh_put(ht_str, reporters, name, &absent);
+    kh_value(reporters, k) = reporter;
+    return absent;
+}
+
+int criterion_add_output(const char *provider, const char *path) {
+    int absent;
+    khint_t k = kh_put(ht_path, outputs, provider, &absent);
+    kh_value(outputs, k) = path;
+    return absent;
+}
+
+void criterion_free_output(void) {
+    kh_destroy(ht_str, reporters);
+    kh_destroy(ht_path, outputs);
+}