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-rw-r--r--metis/ccnx/forwarder/metis/config/metis_ControlState.c150
1 files changed, 150 insertions, 0 deletions
diff --git a/metis/ccnx/forwarder/metis/config/metis_ControlState.c b/metis/ccnx/forwarder/metis/config/metis_ControlState.c
new file mode 100644
index 00000000..bf95afce
--- /dev/null
+++ b/metis/ccnx/forwarder/metis/config/metis_ControlState.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <config.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <strings.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <LongBow/runtime.h>
+#include <string.h>
+
+#include <parc/security/parc_Security.h>
+
+#include <parc/algol/parc_Memory.h>
+#include <parc/algol/parc_Network.h>
+#include <parc/algol/parc_List.h>
+#include <parc/algol/parc_TreeRedBlack.h>
+#include <parc/algol/parc_Time.h>
+
+#include <ccnx/forwarder/metis/config/metis_ControlState.h>
+#include <ccnx/forwarder/metis/config/metisControl_Root.h>
+#include <ccnx/forwarder/metis/config/metis_CommandParser.h>
+
+struct metis_control_state {
+ MetisCommandParser *parser;
+ bool debugFlag;
+
+ void *userdata;
+ CCNxMetaMessage * (*writeRead)(void *userdata, CCNxMetaMessage *msg);
+};
+
+MetisControlState *
+metisControlState_Create(void *userdata, CCNxMetaMessage * (*writeRead)(void *userdata, CCNxMetaMessage * msg))
+{
+ MetisControlState *state = parcMemory_AllocateAndClear(sizeof(MetisControlState));
+ assertNotNull(state, "parcMemory_AllocateAndClear(%zu) returned NULL", sizeof(MetisControlState));
+ state->parser = metisCommandParser_Create();
+
+ state->userdata = userdata;
+ state->writeRead = writeRead;
+ state->debugFlag = false;
+
+ return state;
+}
+
+void
+metisControlState_Destroy(MetisControlState **statePtr)
+{
+ assertNotNull(statePtr, "Parameter statePtr must be non-null");
+ assertNotNull(*statePtr, "Parameter statePtr must dereference t non-null");
+ MetisControlState *state = *statePtr;
+ metisCommandParser_Destroy(&state->parser);
+
+ parcMemory_Deallocate((void **) &state);
+ *statePtr = NULL;
+}
+
+void
+metisControlState_SetDebug(MetisControlState *state, bool debugFlag)
+{
+ assertNotNull(state, "Parameter state must be non-null");
+ state->debugFlag = debugFlag;
+ metisCommandParser_SetDebug(state->parser, debugFlag);
+}
+
+bool
+metisControlState_GetDebug(MetisControlState *state)
+{
+ assertNotNull(state, "Parameter state must be non-null");
+ return state->debugFlag;
+}
+
+void
+metisControlState_RegisterCommand(MetisControlState *state, MetisCommandOps *ops)
+{
+ assertNotNull(state, "Parameter state must be non-null");
+ metisCommandParser_RegisterCommand(state->parser, ops);
+}
+
+CCNxMetaMessage *
+metisControlState_WriteRead(MetisControlState *state, CCNxMetaMessage *msg)
+{
+ assertNotNull(state, "Parameter state must be non-null");
+ assertNotNull(msg, "Parameter msg must be non-null");
+
+ return state->writeRead(state->userdata, msg);
+}
+
+static PARCList *
+_metisControlState_ParseStringIntoTokens(const char *originalString)
+{
+ PARCList *list = parcList(parcArrayList_Create(parcArrayList_StdlibFreeFunction), PARCArrayListAsPARCList);
+
+ char *token;
+
+ char *tofree = parcMemory_StringDuplicate(originalString, strlen(originalString) + 1);
+ char *string = tofree;
+
+ while ((token = strsep(&string, " \t\n")) != NULL) {
+ if (strlen(token) > 0) {
+ parcList_Add(list, strdup(token));
+ }
+ }
+
+ parcMemory_Deallocate((void **) &tofree);
+
+ return list;
+}
+
+MetisCommandReturn
+metisControlState_DispatchCommand(MetisControlState *state, PARCList *args)
+{
+ assertNotNull(state, "Parameter state must be non-null");
+ return metisCommandParser_DispatchCommand(state->parser, args);
+}
+
+int
+metisControlState_Interactive(MetisControlState *state)
+{
+ assertNotNull(state, "Parameter state must be non-null");
+ char *line = NULL;
+ size_t linecap = 0;
+ MetisCommandReturn controlReturn = MetisCommandReturn_Success;
+
+ while (controlReturn != MetisCommandReturn_Exit && !feof(stdin)) {
+ fputs("> ", stdout); fflush(stdout);
+ ssize_t failure = getline(&line, &linecap, stdin);
+ assertTrue(failure > -1, "Error getline");
+
+ PARCList *args = _metisControlState_ParseStringIntoTokens(line);
+ controlReturn = metisControlState_DispatchCommand(state, args);
+ parcList_Release(&args);
+ }
+ return 0;
+}