testsuite: add simple test for list of loaded modules

Makefile.am

@@ -170,7 +170,7 @@ testsuite_libtestsuite_la_DEPENDENCIES = testsuite/uname.so \
 					 testsuite/rootfs
 testsuite_libtestsuite_la_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
 
-TESTSUITE = testsuite/test-init testsuite/test-testsuite
+TESTSUITE = testsuite/test-init testsuite/test-testsuite testsuite/test-loaded
 check_PROGRAMS = $(TESTSUITE)
 TESTS = $(TESTSUITE)
 
@@ -178,6 +178,9 @@ testsuite_test_init_LDADD = testsuite/libtestsuite.la libkmod/libkmod-private.la
 testsuite_test_init_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
 testsuite_test_testsuite_LDADD = testsuite/libtestsuite.la
 testsuite_test_testsuite_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
+testsuite_test_loaded_LDADD = testsuite/libtestsuite.la libkmod/libkmod-private.la
+testsuite_test_loaded_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
+
 
 DISTCHECK_CONFIGURE_FLAGS=--enable-gtk-doc
 

testsuite/.gitignore

@@ -2,6 +2,7 @@
 *.lo
 *.la
 *.so
-test-testsuite
-test-init
 rootfs/
+test-init
+test-loaded
+test-testsuite

testsuite/test-loaded.c

@@ -0,0 +1,107 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <errno.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <string.h>
+#include <libkmod.h>
+
+#include "testsuite.h"
+
+static int loaded_1(const struct test *t)
+{
+	struct kmod_ctx *ctx;
+	const char *null_config = NULL;
+	struct kmod_list *list, *itr;
+	int err;
+
+	ctx = kmod_new(NULL, &null_config);
+	if (ctx == NULL)
+		exit(EXIT_FAILURE);
+
+	err = kmod_module_new_from_loaded(ctx, &list);
+	if (err < 0) {
+		fprintf(stderr, "%s\n", strerror(-err));
+		kmod_unref(ctx);
+		exit(EXIT_FAILURE);
+	}
+
+	printf("Module                  Size  Used by\n");
+
+	kmod_list_foreach(itr, list) {
+		struct kmod_module *mod = kmod_module_get_module(itr);
+		const char *name = kmod_module_get_name(mod);
+		int use_count = kmod_module_get_refcnt(mod);
+		long size = kmod_module_get_size(mod);
+		struct kmod_list *holders, *hitr;
+		int first = 1;
+
+		printf("%-19s %8ld  %d ", name, size, use_count);
+		holders = kmod_module_get_holders(mod);
+		kmod_list_foreach(hitr, holders) {
+			struct kmod_module *hm = kmod_module_get_module(hitr);
+
+			if (!first)
+				putchar(',');
+			else
+				first = 0;
+
+			fputs(kmod_module_get_name(hm), stdout);
+			kmod_module_unref(hm);
+		}
+		putchar('\n');
+		kmod_module_unref_list(holders);
+		kmod_module_unref(mod);
+	}
+	kmod_module_unref_list(list);
+
+	kmod_unref(ctx);
+
+	return EXIT_SUCCESS;
+}
+static const struct test sloaded_1 = {
+	.name = "sloaded_1",
+	.description = "check if list of module is created",
+	.func = loaded_1,
+	.config = {
+		[TC_ROOTFS] = TESTSUITE_ROOTFS "test-loaded/",
+	},
+	.need_spawn = true,
+	.output = {
+		.stdout = TESTSUITE_ROOTFS "test-loaded/correct.txt",
+	},
+};
+
+static const struct test *tests[] = {
+	&sloaded_1,
+	NULL,
+};
+
+int main(int argc, char *argv[])
+{
+	const struct test *t;
+	int arg;
+	size_t i;
+
+	arg = test_init(argc, argv, tests);
+	if (arg == 0)
+		return 0;
+
+	if (arg < argc) {
+		t = test_find(tests, argv[arg]);
+		if (t == NULL) {
+			fprintf(stderr, "could not find test %s\n", argv[arg]);
+			exit(EXIT_FAILURE);
+		}
+
+		return test_run(t);
+	}
+
+	for (i = 0; tests[i] != NULL; i++) {
+		if (test_run(tests[i]) != 0)
+			exit(EXIT_FAILURE);
+	}
+
+	exit(EXIT_SUCCESS);
+}