Add io_create_file, io_open_file

example.c

@@ -1,6 +1,8 @@
 #include <stdio.h>
 #include "io.h"
 
+#define NUM_OPS 3
+
 int main()
 {
     struct io_operation ops[100];
@@ -8,13 +10,26 @@ int main()
     if (!io_context_init(&ioc, ops, sizeof(ops)/sizeof(ops[0])))
         return -1;
     
+    io_handle files[NUM_OPS];
+
+    for (int i = 0; i < NUM_OPS; i++) {
+        char name[1<<8];
+        snprintf(name, sizeof(name), "file_%d.txt", i);
+        files[i] = io_create_file(&ioc, name, IO_CREATE_CANTEXIST, NULL);
+        if (files[i] == IO_INVALID_HANDLE)
+            fprintf(stderr, "Couldn't create '%s'\n", name);
+    }
+
+    int started = 0;
     char msg[] = "Hello, world!\n";
-    for (int i = 0; i < 10; i++) {
-        if (!io_start_send(&ioc, io_get_stdout(), msg, sizeof(msg), NULL))
+    for (int i = 0; i < NUM_OPS; i++) {
+        if (io_start_send(&ioc, files[i], msg, sizeof(msg)-1))
+            started++;
+        else
             fprintf(stderr, "ERROR\n");
     }
 
-    for (int i = 0; i < 10; i++) {
+    for (int i = 0; i < started; i++) {
         struct io_event ev;
         io_wait(&ioc, &ev);
         fprintf(stderr, "CONCLUDED\n");