Merge branch 'tizen' into tizen_4.0

[platform/core/system/sensord.git] / src / server / sensor_handler.cpp

diff --git a/src/server/sensor_handler.cpp b/src/server/sensor_handler.cpp
index 2a2eb6a..37c4dc2 100644 (file)
--- a/src/server/sensor_handler.cpp
+++ b/src/server/sensor_handler.cpp
@@ -28,6 +28,8 @@ using namespace sensor;
 
 sensor_handler::sensor_handler(const sensor_info &info)
 : m_info(info)
+, m_last_data(NULL)
+, m_last_data_size(0)
 {
        const char *priv = sensor::utils::get_privilege(m_info.get_uri());
        m_info.set_privilege(priv);
@@ -84,6 +86,8 @@ int sensor_handler::notify(const char *uri, sensor_data_t *data, int len)
        if (msg->ref_count() == 0)
                msg->unref();
 
+       set_cache(data, len);
+
        return OP_SUCCESS;
 }
 
@@ -91,3 +95,27 @@ uint32_t sensor_handler::observer_count(void)
 {
        return m_observers.size();
 }
+
+void sensor_handler::set_cache(sensor_data_t *data, int size)
+{
+       if (m_last_data == NULL) {
+               m_last_data = (sensor_data_t*)malloc(size);
+               retm_if(m_last_data == NULL, "Memory allocation failed");
+       }
+
+       m_last_data_size = size;
+       memcpy(m_last_data, data, size);
+}
+
+int sensor_handler::get_cache(sensor_data_t **data, int *len)
+{
+       retv_if(m_last_data == NULL, -ENODATA);
+
+       *data = (sensor_data_t *)malloc(m_last_data_size);
+       retvm_if(*data == NULL, -ENOMEM, "Memory allocation failed");
+
+       memcpy(*data, m_last_data, m_last_data_size);
+       *len = m_last_data_size;
+
+       return 0;
+}