+#ifdef NDEBUG
+#undef NDEBUG
+#endif
+
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/time.h>
+#include <assert.h>
#include "meshlink.h"
+#include "utils.h"
+
+static struct sync_flag bar_reachable;
+static struct sync_flag pmtu_flag;
-volatile bool bar_reachable = false;
+static void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
+ (void)mesh;
-void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
- if(!strcmp(node->name, "bar"))
- bar_reachable = reachable;
+ if(reachable && !strcmp(node->name, "bar")) {
+ set_sync_flag(&bar_reachable, true);
+ }
}
-int main(int argc, char *argv[]) {
- // Open two new meshlink instance.
+static void pmtu_cb(meshlink_handle_t *mesh, meshlink_node_t *node, uint16_t pmtu) {
+ (void)mesh;
- meshlink_handle_t *mesh1 = meshlink_open("import_export_conf.1", "foo");
- if(!mesh1) {
- fprintf(stderr, "Could not initialize configuration for foo\n");
- return 1;
+ if(pmtu && !strcmp(node->name, "bar")) {
+ set_sync_flag(&pmtu_flag, true);
}
+}
- meshlink_handle_t *mesh2 = meshlink_open("import_export_conf.2", "bar");
- if(!mesh2) {
- fprintf(stderr, "Could not initialize configuration for bar\n");
- return 1;
- }
+int main(void) {
+ init_sync_flag(&bar_reachable);
+ init_sync_flag(&pmtu_flag);
+
+ meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
+
+ // Open two new meshlink instance.
+
+ assert(meshlink_destroy("import_export_conf.1"));
+ assert(meshlink_destroy("import_export_conf.2"));
+
+ meshlink_handle_t *mesh1 = meshlink_open("import_export_conf.1", "foo", "import-export", DEV_CLASS_BACKBONE);
+ assert(mesh1);
+
+ meshlink_handle_t *mesh2 = meshlink_open("import_export_conf.2", "bar", "import-export", DEV_CLASS_BACKBONE);
+ assert(mesh2);
+
+ // Disable local discovery
+
+ meshlink_enable_discovery(mesh1, false);
+ meshlink_enable_discovery(mesh2, false);
// Import and export both side's data
- meshlink_add_address(mesh1, "localhost");
- meshlink_add_address(mesh2, "localhost");
+ assert(meshlink_set_canonical_address(mesh1, meshlink_get_self(mesh1), "localhost", NULL));
+ assert(meshlink_set_canonical_address(mesh2, meshlink_get_self(mesh2), "localhost", NULL));
char *data = meshlink_export(mesh1);
- if(!data) {
- fprintf(stderr, "Foo could not export its configuration\n");
- return 1;
- }
-
- if(!meshlink_import(mesh2, data)) {
- fprintf(stderr, "Bar could not import foo's configuration\n");
- return 1;
- }
+ assert(data);
+ assert(meshlink_import(mesh2, data));
free(data);
data = meshlink_export(mesh2);
- if(!data) {
- fprintf(stderr, "Bar could not export its configuration\n");
- return 1;
- }
+ assert(data);
+ assert(meshlink_import(mesh1, data));
- if(!meshlink_import(mesh1, data)) {
- fprintf(stderr, "Foo could not import bar's configuration\n");
- return 1;
- }
-
+ // Check that importing twice is fine
+ assert(meshlink_import(mesh1, data));
free(data);
+ // Check that importing garbage is not fine
+ assert(!meshlink_import(mesh1, "Garbage\n"));
+
+ // Check that foo knows bar, but that it is not reachable.
+
+ time_t last_reachable;
+ time_t last_unreachable;
+ meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
+ assert(bar);
+ assert(!meshlink_get_node_reachability(mesh1, bar, &last_reachable, &last_unreachable));
+ assert(!last_reachable);
+ assert(!last_unreachable);
+
// Start both instances
meshlink_set_node_status_cb(mesh1, status_cb);
-
- if(!meshlink_start(mesh1)) {
- fprintf(stderr, "Foo could not start\n");
- return 1;
- }
+ meshlink_set_node_pmtu_cb(mesh1, pmtu_cb);
- if(!meshlink_start(mesh2)) {
- fprintf(stderr, "Bar could not start\n");
- return 1;
- }
+ assert(meshlink_start(mesh1));
+ assert(meshlink_start(mesh2));
// Wait for the two to connect.
- for(int i = 0; i < 20; i++) {
- sleep(1);
- if(bar_reachable)
- break;
- }
+ assert(wait_sync_flag(&bar_reachable, 10));
- if(!bar_reachable) {
- fprintf(stderr, "Bar not reachable for foo after 20 seconds\n");
- return 1;
- }
+ // Wait for UDP communication to become possible.
- // Clean up.
+ assert(wait_sync_flag(&pmtu_flag, 10));
+
+ // Check that we now have reachability information
+
+ assert(meshlink_get_node_reachability(mesh1, bar, &last_reachable, &last_unreachable));
+ assert(last_reachable);
+
+ // Stop the meshes.
- meshlink_stop(mesh2);
meshlink_stop(mesh1);
+ meshlink_stop(mesh2);
+
+ // Check that bar is no longer reachable
+
+ assert(!meshlink_get_node_reachability(mesh1, bar, &last_reachable, &last_unreachable));
+ assert(last_reachable);
+ assert(last_unreachable);
+ assert(last_reachable <= last_unreachable);
+
+ // Clean up.
+
meshlink_close(mesh2);
meshlink_close(mesh1);
-
- return 0;
}