C++ (Cpp) __android_log_buf_writeの例

コード例 #1

static jint android_util_Log_println_native(JNIEnv* env, jobject clazz,
        jint bufID, jint priority, jstring tagObj, jstring msgObj)
{
    const char* tag = NULL;
    const char* msg = NULL;

    if (msgObj == NULL) {
        jniThrowNullPointerException(env, "println needs a message");
        return -1;
    }

    if (bufID < 0 || bufID >= LOG_ID_MAX) {
        jniThrowNullPointerException(env, "bad bufID");
        return -1;
    }

    if (tagObj != NULL)
        tag = env->GetStringUTFChars(tagObj, NULL);
    msg = env->GetStringUTFChars(msgObj, NULL);

    int res = -1;
#ifdef HAVE_XLOG_FEATURE
    if (xlogf_java_tag_is_on(tag, (android_LogPriority)priority)) {
      res = __android_log_buf_write(bufID, (android_LogPriority)priority, tag, msg);
    }
#else
    res = __android_log_buf_write(bufID, (android_LogPriority)priority, tag, msg);
#endif
    if (tag != NULL)
        env->ReleaseStringUTFChars(tagObj, tag);
    env->ReleaseStringUTFChars(msgObj, msg);

    return res;
}

コード例 #2

ファイル: liblog_test.cpp プロジェクト: davidbrazdil/cheri-art_system_core

TEST(liblog, __android_log_buf_write) {
    ASSERT_LT(0, __android_log_buf_write(LOG_ID_RADIO, ANDROID_LOG_INFO,
                                         "TEST__android_log_buf_write",
                                         "radio"));
    usleep(1000);
    ASSERT_LT(0, __android_log_buf_write(LOG_ID_SYSTEM, ANDROID_LOG_INFO,
                                         "TEST__android_log_buf_write",
                                         "system"));
    usleep(1000);
    ASSERT_LT(0, __android_log_buf_write(LOG_ID_MAIN, ANDROID_LOG_INFO,
                                         "TEST__android_log_buf_write",
                                         "main"));
    usleep(1000);
}

コード例 #3

ファイル: liblog_test.cpp プロジェクト: eudorayou/platform_system_core

TEST(liblog, too_big_payload) {
    pid_t pid = getpid();
    static const char big_payload_tag[] = "TEST_big_payload_XXXX";
    char tag[sizeof(big_payload_tag)];
    memcpy(tag, big_payload_tag, sizeof(tag));
    snprintf(tag + sizeof(tag) - 5, 5, "%04X", pid & 0xFFFF);

    std::string longString(3266519, 'x');

    ssize_t ret = LOG_FAILURE_RETRY(__android_log_buf_write(LOG_ID_SYSTEM,
                                    ANDROID_LOG_INFO, tag, longString.c_str()));

    struct logger_list *logger_list;

    ASSERT_TRUE(NULL != (logger_list = android_logger_list_open(
        LOG_ID_SYSTEM, O_RDONLY | O_NDELAY, 100, 0)));

    ssize_t max_len = 0;

    for(;;) {
        log_msg log_msg;
        if (android_logger_list_read(logger_list, &log_msg) <= 0) {
            break;
        }

        if ((log_msg.entry.pid != pid) || (log_msg.id() != LOG_ID_SYSTEM)) {
            continue;
        }

        char *data = log_msg.msg() + 1;

        if (strcmp(data, tag)) {
            continue;
        }

        data += strlen(data) + 1;

        const char *left = data;
        const char *right = longString.c_str();
        while (*left && *right && (*left == *right)) {
            ++left;
            ++right;
        }

        if (max_len <= (left - data)) {
            max_len = left - data + 1;
        }
    }

    android_logger_list_close(logger_list);

    EXPECT_LE(LOGGER_ENTRY_MAX_PAYLOAD - sizeof(big_payload_tag),
              static_cast<size_t>(max_len));

    EXPECT_EQ(ret, max_len + sizeof(big_payload_tag));
}

コード例 #4

ファイル: logd_write.c プロジェクト: zp8001/STUDY_4.0.3

int __android_log_buf_print(int bufID, int prio, const char *tag, const char *fmt, ...)
{
    va_list ap;
    char buf[LOG_BUF_SIZE];

    va_start(ap, fmt);
    vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
    va_end(ap);

    return __android_log_buf_write(bufID, prio, tag, buf);
}

コード例 #5

ファイル: logd_write.c プロジェクト: cloudpeng/platform_system_core

int __android_log_write(int prio, const char *tag, const char *msg)
{
    return __android_log_buf_write(LOG_ID_MAIN, prio, tag, msg);
}