first commit

example.c

@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include "io.h"
+
+int main()
+{
+    struct io_operation ops[100];
+    struct io_context ioc;
+    if (!io_context_init(&ioc, ops, sizeof(ops)/sizeof(ops[0])))
+        return -1;
+    
+    char msg[] = "Hello, world!\n";
+    for (int i = 0; i < 10; i++) {
+        if (!io_start_send(&ioc, io_get_stdout(), msg, sizeof(msg), NULL))
+            fprintf(stderr, "ERROR\n");
+    }
+
+    for (int i = 0; i < 10; i++) {
+        struct io_event ev;
+        io_wait(&ioc, &ev);
+        fprintf(stderr, "CONCLUDED\n");
+    }
+
+    io_context_free(&ioc);
+    return 0;
+}