extract kernel module, depends on core and provides kernel service(no stream)

@@ -121,7 +121,7 @@ fi
 #####################################################################################
 #####################################################################################
 # Modules, compile each module, then link to binary
 # Modules, compile each module, then link to binary
 #
 #
-#Core Module
+#Core, depends only on system apis.
 MODULE_ID="CORE" 
 MODULE_ID="CORE" 
 MODULE_DEPENDS=() 
 MODULE_DEPENDS=() 
 ModuleLibIncs=(${SRS_OBJS})
 ModuleLibIncs=(${SRS_OBJS})
@@ -129,12 +129,20 @@ MODULE_FILES=("srs_core" "srs_core_autofree")
 MODULE_DIR="src/core" . auto/modules.sh
 MODULE_DIR="src/core" . auto/modules.sh
 CORE_OBJS="${MODULE_OBJS[@]}"
 CORE_OBJS="${MODULE_OBJS[@]}"
 #
 #
+#Kernel, depends on core, provides error/log/config, nothing about stream information.
+MODULE_ID="KERNEL" 
+MODULE_DEPENDS=("CORE") 
+ModuleLibIncs=(${SRS_OBJS})
+MODULE_FILES=("srs_kernel_error")
+MODULE_DIR="src/kernel" . auto/modules.sh
+KERNEL_OBJS="${MODULE_OBJS[@]}"
+#
 #App Module
 #App Module
 MODULE_ID="APP" 
 MODULE_ID="APP" 
-MODULE_DEPENDS=("CORE") 
+MODULE_DEPENDS=("CORE" "KERNEL") 
 ModuleLibIncs=(${LibSTRoot} ${LibHttpParserRoot} ${LibSSLRoot} ${SRS_OBJS})
 ModuleLibIncs=(${LibSTRoot} ${LibHttpParserRoot} ${LibSSLRoot} ${SRS_OBJS})
 MODULE_FILES=("srs_core_log" "srs_core_server" 
 MODULE_FILES=("srs_core_log" "srs_core_server" 
-        "srs_core_error" "srs_core_conn" "srs_core_client" 
+         "srs_core_conn" "srs_core_client" 
         "srs_core_rtmp" "srs_core_socket" "srs_core_buffer"
         "srs_core_rtmp" "srs_core_socket" "srs_core_buffer"
         "srs_core_protocol" "srs_core_amf0"
         "srs_core_protocol" "srs_core_amf0"
         "srs_core_stream" "srs_core_source" "srs_core_codec"
         "srs_core_stream" "srs_core_source" "srs_core_codec"
@@ -148,7 +156,7 @@ APP_OBJS="${MODULE_OBJS[@]}"
 #
 #
 #Main Module
 #Main Module
 MODULE_ID="MAIN" 
 MODULE_ID="MAIN" 
-MODULE_DEPENDS=("CORE" "APP")
+MODULE_DEPENDS=("CORE" "KERNEL" "APP")
 ModuleLibIncs=(${LibSTRoot} ${SRS_OBJS})
 ModuleLibIncs=(${LibSTRoot} ${SRS_OBJS})
 MODULE_FILES=("srs_main_server" "srs_main_bandcheck")
 MODULE_FILES=("srs_main_server" "srs_main_bandcheck")
 MODULE_DIR="src/main" . auto/modules.sh
 MODULE_DIR="src/main" . auto/modules.sh
@@ -164,7 +172,7 @@ MAIN_ENTRANCES=("srs_main_server" "srs_main_bandcheck")
 # all depends libraries
 # all depends libraries
 ModuleLibFiles=(${LibSTfile} ${LibHttpParserfile} ${LibSSLfile})
 ModuleLibFiles=(${LibSTfile} ${LibHttpParserfile} ${LibSSLfile})
 # all depends objects
 # all depends objects
-MODULE_OBJS="${CORE_OBJS[@]} ${APP_OBJS[@]} ${MAIN_OBJS[@]}"
+MODULE_OBJS="${CORE_OBJS[@]} ${KERNEL_OBJS[@]} ${APP_OBJS[@]} ${MAIN_OBJS[@]}"
 LINK_OPTIONS="-ldl"
 LINK_OPTIONS="-ldl"
 #
 #
 # srs:
 # srs:

@@ -26,7 +26,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <utility>
 #include <utility>
 
 
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_stream.hpp>
 #include <srs_core_stream.hpp>
 
 
 // AMF0 marker
 // AMF0 marker

@@ -29,7 +29,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 using namespace std;
 using namespace std;
 
 
 #include <srs_core_rtmp.hpp>
 #include <srs_core_rtmp.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_amf0.hpp>
 #include <srs_core_amf0.hpp>
 #include <srs_core_protocol.hpp>
 #include <srs_core_protocol.hpp>
 #include <srs_core_config.hpp>
 #include <srs_core_config.hpp>

@@ -23,7 +23,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <srs_core_buffer.hpp>
 #include <srs_core_buffer.hpp>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_socket.hpp>
 #include <srs_core_socket.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 
 

@@ -28,7 +28,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 using namespace std;
 using namespace std;
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_rtmp.hpp>
 #include <srs_core_rtmp.hpp>
 #include <srs_core_protocol.hpp>
 #include <srs_core_protocol.hpp>

@@ -26,7 +26,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <string.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdlib.h>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_stream.hpp>
 #include <srs_core_stream.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_autofree.hpp>
 #include <srs_core_autofree.hpp>

@@ -37,7 +37,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <algorithm>
 #include <algorithm>
 using namespace std;
 using namespace std;
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_autofree.hpp>
 #include <srs_core_autofree.hpp>
 
 

@@ -24,7 +24,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_core_conn.hpp>
 #include <srs_core_conn.hpp>
 
 
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_server.hpp>
 #include <srs_core_server.hpp>
 
 
 SrsConnection::SrsConnection(SrsServer* srs_server, st_netfd_t client_stfd)
 SrsConnection::SrsConnection(SrsServer* srs_server, st_netfd_t client_stfd)

@@ -32,7 +32,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <algorithm>
 #include <algorithm>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_config.hpp>
 #include <srs_core_config.hpp>
 #include <srs_core_rtmp.hpp>
 #include <srs_core_rtmp.hpp>

@@ -28,7 +28,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <netinet/in.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <arpa/inet.h>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_rtmp.hpp>
 #include <srs_core_rtmp.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_protocol.hpp>
 #include <srs_core_protocol.hpp>

@@ -26,7 +26,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <time.h>
 #include <time.h>
 #include <stdlib.h>
 #include <stdlib.h>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_autofree.hpp>
 #include <srs_core_autofree.hpp>
 #include <srs_core_socket.hpp>
 #include <srs_core_socket.hpp>

@@ -33,7 +33,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <algorithm>
 #include <algorithm>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_codec.hpp>
 #include <srs_core_codec.hpp>
 #include <srs_core_amf0.hpp>
 #include <srs_core_amf0.hpp>
 #include <srs_core_protocol.hpp>
 #include <srs_core_protocol.hpp>

@@ -32,7 +32,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <netinet/in.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <arpa/inet.h>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_rtmp.hpp>
 #include <srs_core_rtmp.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_socket.hpp>
 #include <srs_core_socket.hpp>

@@ -29,7 +29,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_config.hpp>
 #include <srs_core_config.hpp>
 #include <srs_core_reload.hpp>
 #include <srs_core_reload.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 
 
 #define SRS_STAGE_DEFAULT_INTERVAL_MS 1200
 #define SRS_STAGE_DEFAULT_INTERVAL_MS 1200
 
 

@@ -25,7 +25,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_amf0.hpp>
 #include <srs_core_amf0.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_socket.hpp>
 #include <srs_core_socket.hpp>
 #include <srs_core_buffer.hpp>
 #include <srs_core_buffer.hpp>
 #include <srs_core_stream.hpp>
 #include <srs_core_stream.hpp>

@@ -35,7 +35,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <srs_core_st.hpp>
 #include <srs_core_st.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 
 
 // the following is the timeout for rtmp protocol, 
 // the following is the timeout for rtmp protocol, 
 // to avoid death connection.
 // to avoid death connection.

@@ -23,7 +23,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <srs_core_refer.hpp>
 #include <srs_core_refer.hpp>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_config.hpp>
 #include <srs_core_config.hpp>
 
 

@@ -25,7 +25,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 using namespace std;
 using namespace std;
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 
 
 ISrsReloadHandler::ISrsReloadHandler()
 ISrsReloadHandler::ISrsReloadHandler()
 {
 {

@@ -24,7 +24,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_core_rtmp.hpp>
 #include <srs_core_rtmp.hpp>
 
 
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_socket.hpp>
 #include <srs_core_socket.hpp>
 #include <srs_core_protocol.hpp>
 #include <srs_core_protocol.hpp>
 #include <srs_core_autofree.hpp>
 #include <srs_core_autofree.hpp>

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <algorithm>
 #include <algorithm>
 
 
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_client.hpp>
 #include <srs_core_client.hpp>
 #include <srs_core_config.hpp>
 #include <srs_core_config.hpp>
 
 

@@ -23,7 +23,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <srs_core_socket.hpp>
 #include <srs_core_socket.hpp>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 
 
 SrsSocket::SrsSocket(st_netfd_t client_stfd)
 SrsSocket::SrsSocket(st_netfd_t client_stfd)
 {
 {

@@ -24,7 +24,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_core_stream.hpp>
 #include <srs_core_stream.hpp>
 
 
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 
 
 SrsStream::SrsStream()
 SrsStream::SrsStream()
 {
 {

@@ -23,7 +23,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <srs_core_thread.hpp>
 #include <srs_core_thread.hpp>
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
 
 
 ISrsThreadHandler::ISrsThreadHandler()
 ISrsThreadHandler::ISrsThreadHandler()

@@ -21,7 +21,7 @@ IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 */
 
 
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 
 
 bool srs_is_system_control_error(int error_code)
 bool srs_is_system_control_error(int error_code)
 {
 {

@@ -21,11 +21,11 @@ IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 */
 
 
-#ifndef SRS_CORE_ERROR_HPP
-#define SRS_CORE_ERROR_HPP
+#ifndef SRS_KERNEL_ERROR_HPP
+#define SRS_KERNEL_ERROR_HPP
 
 
 /*
 /*
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 */
 */
 
 
 #include <srs_core.hpp>
 #include <srs_core.hpp>

@@ -30,7 +30,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
 #include <srs_core_rtmp.hpp>
 #include <srs_core_rtmp.hpp>
 #include <srs_core_protocol.hpp>
 #include <srs_core_protocol.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_amf0.hpp>
 #include <srs_core_amf0.hpp>
 #include <srs_core_autofree.hpp>
 #include <srs_core_autofree.hpp>
 #include <srs_core_stream.hpp>
 #include <srs_core_stream.hpp>

@@ -22,7 +22,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 */
 
 
 #include <srs_core_log.hpp>
 #include <srs_core_log.hpp>
-#include <srs_core_error.hpp>
+#include <srs_kernel_error.hpp>
 #include <srs_core_server.hpp>
 #include <srs_core_server.hpp>
 #include <srs_core_config.hpp>
 #include <srs_core_config.hpp>
 
 

@@ -9,6 +9,9 @@ file
     ..\core\srs_core.cpp,
     ..\core\srs_core.cpp,
     ..\core\srs_core_autofree.hpp,
     ..\core\srs_core_autofree.hpp,
     ..\core\srs_core_autofree.cpp,
     ..\core\srs_core_autofree.cpp,
+    kernel readonly separator,
+    ..\kernel\srs_kernel_error.hpp,
+    ..\kernel\srs_kernel_error.cpp,
     app readonly separator,
     app readonly separator,
     ..\app\srs_core_amf0.hpp,
     ..\app\srs_core_amf0.hpp,
     ..\app\srs_core_amf0.cpp,
     ..\app\srs_core_amf0.cpp,
@@ -26,8 +29,6 @@ file
     ..\app\srs_core_conn.cpp,
     ..\app\srs_core_conn.cpp,
     ..\app\srs_core_encoder.hpp,
     ..\app\srs_core_encoder.hpp,
     ..\app\srs_core_encoder.cpp,
     ..\app\srs_core_encoder.cpp,
-    ..\app\srs_core_error.hpp,
-    ..\app\srs_core_error.cpp,
     ..\app\srs_core_forward.hpp,
     ..\app\srs_core_forward.hpp,
     ..\app\srs_core_forward.cpp,
     ..\app\srs_core_forward.cpp,
     ..\app\srs_core_handshake.hpp,
     ..\app\srs_core_handshake.hpp,