298 lines
9.6 KiB
C++
298 lines
9.6 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <sys/wait.h>
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#include <errno.h>
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#include <unistd.h>
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#include <string>
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#if __BIONIC__
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#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
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#include <sys/_system_properties.h>
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extern void *__system_property_area__;
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struct LocalPropertyTestState {
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LocalPropertyTestState() : valid(false) {
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const char* ANDROID_DATA = getenv("ANDROID_DATA");
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char dir_template[PATH_MAX];
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snprintf(dir_template, sizeof(dir_template), "%s/local/tmp/prop-XXXXXX", ANDROID_DATA);
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char* dirname = mkdtemp(dir_template);
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if (!dirname) {
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fprintf(stderr, "making temp file for test state failed (is %s writable?): %s",
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dir_template, strerror(errno));
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return;
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}
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old_pa = __system_property_area__;
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__system_property_area__ = NULL;
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pa_dirname = dirname;
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pa_filename = pa_dirname + "/__properties__";
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__system_property_set_filename(pa_filename.c_str());
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__system_property_area_init();
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valid = true;
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}
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~LocalPropertyTestState() {
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if (!valid) {
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return;
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}
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__system_property_area__ = old_pa;
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__system_property_set_filename(PROP_FILENAME);
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unlink(pa_filename.c_str());
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rmdir(pa_dirname.c_str());
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}
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public:
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bool valid;
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private:
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std::string pa_dirname;
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std::string pa_filename;
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void *old_pa;
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};
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TEST(properties, add) {
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LocalPropertyTestState pa;
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ASSERT_TRUE(pa.valid);
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char propvalue[PROP_VALUE_MAX];
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ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
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ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
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ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));
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ASSERT_EQ(6, __system_property_get("property", propvalue));
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ASSERT_STREQ(propvalue, "value1");
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ASSERT_EQ(6, __system_property_get("other_property", propvalue));
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ASSERT_STREQ(propvalue, "value2");
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ASSERT_EQ(6, __system_property_get("property_other", propvalue));
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ASSERT_STREQ(propvalue, "value3");
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}
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TEST(properties, update) {
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LocalPropertyTestState pa;
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ASSERT_TRUE(pa.valid);
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char propvalue[PROP_VALUE_MAX];
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prop_info *pi;
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ASSERT_EQ(0, __system_property_add("property", 8, "oldvalue1", 9));
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ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
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ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));
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pi = (prop_info *)__system_property_find("property");
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ASSERT_NE((prop_info *)NULL, pi);
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__system_property_update(pi, "value4", 6);
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pi = (prop_info *)__system_property_find("other_property");
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ASSERT_NE((prop_info *)NULL, pi);
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__system_property_update(pi, "newvalue5", 9);
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pi = (prop_info *)__system_property_find("property_other");
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ASSERT_NE((prop_info *)NULL, pi);
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__system_property_update(pi, "value6", 6);
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ASSERT_EQ(6, __system_property_get("property", propvalue));
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ASSERT_STREQ(propvalue, "value4");
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ASSERT_EQ(9, __system_property_get("other_property", propvalue));
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ASSERT_STREQ(propvalue, "newvalue5");
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ASSERT_EQ(6, __system_property_get("property_other", propvalue));
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ASSERT_STREQ(propvalue, "value6");
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}
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TEST(properties, fill) {
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LocalPropertyTestState pa;
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ASSERT_TRUE(pa.valid);
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char prop_name[PROP_NAME_MAX];
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char prop_value[PROP_VALUE_MAX];
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char prop_value_ret[PROP_VALUE_MAX];
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int count = 0;
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int ret;
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while (true) {
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ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d", count);
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memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret);
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ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d", count);
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memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret);
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prop_name[PROP_NAME_MAX - 1] = 0;
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prop_value[PROP_VALUE_MAX - 1] = 0;
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ret = __system_property_add(prop_name, PROP_NAME_MAX - 1, prop_value, PROP_VALUE_MAX - 1);
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if (ret < 0)
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break;
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count++;
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}
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// For historical reasons at least 247 properties must be supported
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ASSERT_GE(count, 247);
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for (int i = 0; i < count; i++) {
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ret = snprintf(prop_name, PROP_NAME_MAX - 1, "property_%d", i);
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memset(prop_name + ret, 'a', PROP_NAME_MAX - 1 - ret);
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ret = snprintf(prop_value, PROP_VALUE_MAX - 1, "value_%d", i);
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memset(prop_value + ret, 'b', PROP_VALUE_MAX - 1 - ret);
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prop_name[PROP_NAME_MAX - 1] = 0;
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prop_value[PROP_VALUE_MAX - 1] = 0;
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memset(prop_value_ret, '\0', PROP_VALUE_MAX);
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ASSERT_EQ(PROP_VALUE_MAX - 1, __system_property_get(prop_name, prop_value_ret));
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ASSERT_EQ(0, memcmp(prop_value, prop_value_ret, PROP_VALUE_MAX));
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}
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}
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static void foreach_test_callback(const prop_info *pi, void* cookie) {
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size_t *count = static_cast<size_t *>(cookie);
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ASSERT_NE((prop_info *)NULL, pi);
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(*count)++;
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}
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TEST(properties, foreach) {
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LocalPropertyTestState pa;
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ASSERT_TRUE(pa.valid);
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size_t count = 0;
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ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
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ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
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ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));
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ASSERT_EQ(0, __system_property_foreach(foreach_test_callback, &count));
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ASSERT_EQ(3U, count);
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}
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TEST(properties, find_nth) {
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LocalPropertyTestState pa;
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ASSERT_TRUE(pa.valid);
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ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
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ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
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ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));
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ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(0));
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ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(1));
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ASSERT_NE((const prop_info *)NULL, __system_property_find_nth(2));
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ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(3));
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ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(4));
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ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(5));
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ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(100));
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ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(200));
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ASSERT_EQ((const prop_info *)NULL, __system_property_find_nth(247));
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}
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TEST(properties, errors) {
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LocalPropertyTestState pa;
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ASSERT_TRUE(pa.valid);
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char prop_value[PROP_NAME_MAX];
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ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
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ASSERT_EQ(0, __system_property_add("other_property", 14, "value2", 6));
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ASSERT_EQ(0, __system_property_add("property_other", 14, "value3", 6));
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ASSERT_EQ(0, __system_property_find("property1"));
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ASSERT_EQ(0, __system_property_get("property1", prop_value));
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ASSERT_EQ(-1, __system_property_add("name", PROP_NAME_MAX, "value", 5));
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ASSERT_EQ(-1, __system_property_add("name", 4, "value", PROP_VALUE_MAX));
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ASSERT_EQ(-1, __system_property_update(NULL, "value", PROP_VALUE_MAX));
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}
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TEST(properties, serial) {
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LocalPropertyTestState pa;
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ASSERT_TRUE(pa.valid);
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const prop_info *pi;
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unsigned int serial;
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ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
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ASSERT_NE((const prop_info *)NULL, pi = __system_property_find("property"));
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serial = __system_property_serial(pi);
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ASSERT_EQ(0, __system_property_update((prop_info *)pi, "value2", 6));
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ASSERT_NE(serial, __system_property_serial(pi));
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}
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static void *PropertyWaitHelperFn(void *arg)
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{
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int *flag = (int *)arg;
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prop_info *pi;
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pi = (prop_info *)__system_property_find("property");
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usleep(100000);
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*flag = 1;
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__system_property_update(pi, "value3", 6);
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return NULL;
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}
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TEST(properties, wait) {
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LocalPropertyTestState pa;
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ASSERT_TRUE(pa.valid);
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unsigned int serial;
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prop_info *pi;
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pthread_t t;
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int flag = 0;
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ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
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serial = __system_property_wait_any(0);
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pi = (prop_info *)__system_property_find("property");
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ASSERT_NE((prop_info *)NULL, pi);
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__system_property_update(pi, "value2", 6);
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serial = __system_property_wait_any(serial);
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ASSERT_EQ(0, pthread_create(&t, NULL, PropertyWaitHelperFn, &flag));
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ASSERT_EQ(flag, 0);
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serial = __system_property_wait_any(serial);
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ASSERT_EQ(flag, 1);
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void* result;
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ASSERT_EQ(0, pthread_join(t, &result));
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}
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class KilledByFault {
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public:
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explicit KilledByFault() {};
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bool operator()(int exit_status) const;
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};
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bool KilledByFault::operator()(int exit_status) const {
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return WIFSIGNALED(exit_status) &&
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(WTERMSIG(exit_status) == SIGSEGV ||
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WTERMSIG(exit_status) == SIGBUS ||
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WTERMSIG(exit_status) == SIGABRT);
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}
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TEST(properties_DeathTest, read_only) {
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::testing::FLAGS_gtest_death_test_style = "threadsafe";
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// This test only makes sense if we're talking to the real system property service.
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struct stat sb;
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if (stat(PROP_FILENAME, &sb) == -1 && errno == ENOENT) {
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return;
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}
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ASSERT_EXIT(__system_property_add("property", 8, "value", 5), KilledByFault(), "");
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}
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#endif
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