1 files changed, 173 insertions, 0 deletions
diff --git a/lib/isc/tests/isctest.c b/lib/isc/tests/isctest.c
new file mode 100644
index 0000000..3b0235b
--- /dev/null
+++ b/lib/isc/tests/isctest.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*! \file */
+
+#include "isctest.h"
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include <isc/buffer.h>
+#include <isc/hash.h>
+#include <isc/managers.h>
+#include <isc/mem.h>
+#include <isc/os.h>
+#include <isc/socket.h>
+#include <isc/string.h>
+#include <isc/task.h>
+#include <isc/timer.h>
+#include <isc/util.h>
+
+isc_mem_t *test_mctx = NULL;
+isc_log_t *test_lctx = NULL;
+isc_taskmgr_t *taskmgr = NULL;
+isc_timermgr_t *timermgr = NULL;
+isc_socketmgr_t *socketmgr = NULL;
+isc_nm_t *netmgr = NULL;
+isc_task_t *maintask = NULL;
+int ncpus;
+
+static bool test_running = false;
+
+/*
+ * Logging categories: this needs to match the list in bin/named/log.c.
+ */
+static isc_logcategory_t categories[] = { { "", 0 },
+					  { "client", 0 },
+					  { "network", 0 },
+					  { "update", 0 },
+					  { "queries", 0 },
+					  { "unmatched", 0 },
+					  { "update-security", 0 },
+					  { "query-errors", 0 },
+					  { NULL, 0 } };
+
+static void
+cleanup_managers(void) {
+	if (maintask != NULL) {
+		isc_task_shutdown(maintask);
+		isc_task_destroy(&maintask);
+	}
+
+	isc_managers_destroy(netmgr == NULL ? NULL : &netmgr,
+			     taskmgr == NULL ? NULL : &taskmgr);
+
+	if (socketmgr != NULL) {
+		isc_socketmgr_destroy(&socketmgr);
+	}
+	if (timermgr != NULL) {
+		isc_timermgr_destroy(&timermgr);
+	}
+}
+
+static isc_result_t
+create_managers(unsigned int workers) {
+	isc_result_t result;
+	char *p;
+
+	if (workers == 0) {
+		workers = isc_os_ncpus();
+	}
+
+	p = getenv("ISC_TASK_WORKERS");
+	if (p != NULL) {
+		workers = atoi(p);
+	}
+
+	CHECK(isc_managers_create(test_mctx, workers, 0, &netmgr, &taskmgr));
+	CHECK(isc_task_create_bound(taskmgr, 0, &maintask, 0));
+	isc_taskmgr_setexcltask(taskmgr, maintask);
+
+	CHECK(isc_timermgr_create(test_mctx, &timermgr));
+	CHECK(isc_socketmgr_create(test_mctx, &socketmgr));
+	return (ISC_R_SUCCESS);
+
+cleanup:
+	cleanup_managers();
+	return (result);
+}
+
+isc_result_t
+isc_test_begin(FILE *logfile, bool start_managers, unsigned int workers) {
+	isc_result_t result;
+
+	INSIST(!test_running);
+	test_running = true;
+
+	isc_mem_debugging |= ISC_MEM_DEBUGRECORD;
+
+	INSIST(test_mctx == NULL);
+	isc_mem_create(&test_mctx);
+
+	if (logfile != NULL) {
+		isc_logdestination_t destination;
+		isc_logconfig_t *logconfig = NULL;
+
+		INSIST(test_lctx == NULL);
+		isc_log_create(test_mctx, &test_lctx, &logconfig);
+		isc_log_registercategories(test_lctx, categories);
+		isc_log_setcontext(test_lctx);
+
+		destination.file.stream = logfile;
+		destination.file.name = NULL;
+		destination.file.versions = ISC_LOG_ROLLNEVER;
+		destination.file.maximum_size = 0;
+		isc_log_createchannel(logconfig, "stderr", ISC_LOG_TOFILEDESC,
+				      ISC_LOG_DYNAMIC, &destination, 0);
+		CHECK(isc_log_usechannel(logconfig, "stderr", NULL, NULL));
+	}
+
+	ncpus = isc_os_ncpus();
+
+	if (start_managers) {
+		CHECK(create_managers(workers));
+	}
+
+	return (ISC_R_SUCCESS);
+
+cleanup:
+	isc_test_end();
+	return (result);
+}
+
+void
+isc_test_end(void) {
+	if (maintask != NULL) {
+		isc_task_detach(&maintask);
+	}
+
+	cleanup_managers();
+
+	if (test_lctx != NULL) {
+		isc_log_destroy(&test_lctx);
+	}
+	if (test_mctx != NULL) {
+		isc_mem_destroy(&test_mctx);
+	}
+
+	test_running = false;
+}
+
+/*
+ * Sleep for 'usec' microseconds.
+ */
+void
+isc_test_nap(uint32_t usec) {
+	struct timespec ts;
+
+	ts.tv_sec = usec / 1000000;
+	ts.tv_nsec = (usec % 1000000) * 1000;
+	nanosleep(&ts, NULL);
+}