Add support for opening a MeshLink instance without permanent storage.

[meshlink] / test / ephemeral.c

diff --git a/test/ephemeral.c b/test/ephemeral.c
new file mode 100644 (file)
index 0000000..10a6e2b
--- /dev/null
+++ b/test/ephemeral.c
@@ -0,0 +1,74 @@
+#include <stdio.h>
+#include <sys/time.h>
+#include <assert.h>
+
+#include "meshlink.h"
+
+void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
+       static struct timeval tv0;
+       struct timeval tv;
+
+       if(tv0.tv_sec == 0) {
+               gettimeofday(&tv0, NULL);
+       }
+
+       gettimeofday(&tv, NULL);
+       fprintf(stderr, "%u.%.03u ", (unsigned int)(tv.tv_sec - tv0.tv_sec), (unsigned int)tv.tv_usec / 1000);
+
+       if(mesh) {
+               fprintf(stderr, "(%s) ", mesh->name);
+       }
+
+       fprintf(stderr, "[%d] %s\n", level, text);
+}
+
+int main() {
+       meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
+
+       // Open two ephemeral meshlink instance.
+
+       meshlink_handle_t *mesh1 = meshlink_open_ephemeral("foo", "ephemeral", DEV_CLASS_BACKBONE);
+       meshlink_handle_t *mesh2 = meshlink_open_ephemeral("bar", "ephemeral", DEV_CLASS_BACKBONE);
+
+       assert(mesh1);
+       assert(mesh2);
+
+       meshlink_set_log_cb(mesh1, MESHLINK_DEBUG, log_cb);
+       meshlink_set_log_cb(mesh2, MESHLINK_DEBUG, log_cb);
+
+       // Exchange data
+
+       assert(meshlink_import(mesh1, meshlink_export(mesh2)));
+       assert(meshlink_import(mesh2, meshlink_export(mesh1)));
+
+       // Check that they know each other
+
+       assert(meshlink_get_node(mesh1, "bar"));
+       assert(meshlink_get_node(mesh2, "foo"));
+
+       // Close the ephemeral instances and reopen them.
+
+       meshlink_close(mesh1);
+       meshlink_close(mesh2);
+
+       mesh1 = meshlink_open_ephemeral("foo", "ephemeral", DEV_CLASS_BACKBONE);
+       mesh2 = meshlink_open_ephemeral("bar", "ephemeral", DEV_CLASS_BACKBONE);
+
+       assert(mesh1);
+       assert(mesh2);
+
+       meshlink_set_log_cb(mesh1, MESHLINK_DEBUG, log_cb);
+       meshlink_set_log_cb(mesh2, MESHLINK_DEBUG, log_cb);
+
+       // Check that the nodes no longer know each other
+
+       assert(!meshlink_get_node(mesh1, "bar"));
+       assert(!meshlink_get_node(mesh2, "foo"));
+
+       // That's it.
+
+       meshlink_close(mesh1);
+       meshlink_close(mesh2);
+
+       return 0;
+}