4 files changed, 33 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e46d295
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+miniclock
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..dfb0a6f
--- /dev/null
+++ b/README.md
@@ -0,0 +1,4 @@
+# Miniclock
+
+Tiny clock app, outputs time accurately each second. Meant to be used with
+status bar apps like i3-blocks.
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..9371f5a
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+gcc -O3 miniclock.c -o miniclock
diff --git a/miniclock.c b/miniclock.c
new file mode 100644
index 0000000..24e8a3f
--- /dev/null
+++ b/miniclock.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <time.h>
+
+int main() {
+    struct timespec ts = {0};
+    struct tm tm = {0};
+
+    for (;;) {
+        // print time
+        clock_gettime(CLOCK_REALTIME, &ts);
+        localtime_r(&ts.tv_sec, &tm);
+        printf("%s", asctime(&tm));
+        fflush(stdout);
+
+        // delay until next second
+        struct timespec td = {
+            .tv_sec = 0,
+            .tv_nsec = 1000000000 - ts.tv_nsec,
+        };
+
+        nanosleep(&td, NULL);
+    }
+
+    return 0;
+}