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authorLuca Muscariello <lumuscar+fdio@cisco.com>2019-03-23 14:13:53 +0100
committerAngelo Mantellini <manangel@cisco.com>2019-03-24 14:11:17 +0100
commiteb323e056e747d71867cf965434811c1de925de2 (patch)
tree23a6096823d795efe448559cf0409a18ab47932d /hicn-light/src/core/connection.c
parent43562f9f02d35e5d540ab4028a0326c0c7cd4898 (diff)
[HICN-141] Definition of a C API for hicn-light
Change-Id: Id861f0abe58b1e3c9ba8cc76701da0f9c6801748 Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com> Signed-off-by: Angelo Mantellini <manangel@cisco.com>
Diffstat (limited to 'hicn-light/src/core/connection.c')
-rw-r--r--hicn-light/src/core/connection.c272
1 files changed, 0 insertions, 272 deletions
diff --git a/hicn-light/src/core/connection.c b/hicn-light/src/core/connection.c
deleted file mode 100644
index 525fe29c4..000000000
--- a/hicn-light/src/core/connection.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*
- * Copyright (c) 2017-2019 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 <limits.h>
-#include <src/config.h>
-#include <stdio.h>
-
-#include <src/core/connection.h>
-#include <src/core/messageHandler.h>
-#include <src/core/ticks.h>
-#include <src/core/wldr.h>
-#include <src/io/addressPair.h>
-#include <src/io/ioOperations.h>
-
-#include <parc/algol/parc_Memory.h>
-#include <parc/assert/parc_Assert.h>
-
-struct connection {
- const AddressPair *addressPair;
- IoOperations *ops;
-
- unsigned refCount;
-
- bool probing_active;
- unsigned probing_interval;
- unsigned counter;
- Ticks last_sent;
- Ticks delay;
-
- bool wldrAutoStart; // if true, wldr can be set automatically
- // by default this value is set to true.
- // if wldr is activated using a command (config
- // file/hicnLightControl) this value is set to false so
- // that a base station can not disable wldr at the client
- Wldr *wldr;
-};
-
-Connection *connection_Create(IoOperations *ops) {
- parcAssertNotNull(ops, "Parameter ops must be non-null");
- Connection *conn = parcMemory_AllocateAndClear(sizeof(Connection));
- parcAssertNotNull(conn, "parcMemory_AllocateAndClear(%zu) returned NULL",
- sizeof(Connection));
- conn->addressPair = ioOperations_GetAddressPair(ops);
- conn->ops = ops;
- conn->refCount = 1;
- conn->wldr = NULL;
- conn->probing_active = false;
-
- conn->wldrAutoStart = true;
- conn->probing_interval = 0;
- conn->counter = 0;
- conn->last_sent = 0;
- conn->delay = INT_MAX;
- return conn;
-}
-
-Connection *connection_Acquire(Connection *connection) {
- parcAssertNotNull(connection, "Parameter conn must be non-null");
- connection->refCount++;
- return connection;
-}
-
-void connection_Release(Connection **connectionPtr) {
- parcAssertNotNull(connectionPtr, "Parameter must be non-null double pointer");
- parcAssertNotNull(*connectionPtr,
- "Parameter must dereference to non-null pointer");
- Connection *conn = *connectionPtr;
-
- parcAssertTrue(
- conn->refCount > 0,
- "Invalid state, connection reference count should be positive, got 0.");
- conn->refCount--;
- if (conn->refCount == 0) {
- // don't destroy addressPair, its part of ops.
- ioOperations_Release(&conn->ops);
- if (conn->wldr != NULL) {
- wldr_Destroy(&(conn->wldr));
- }
- parcMemory_Deallocate((void **)&conn);
- }
- *connectionPtr = NULL;
-}
-
-bool connection_Send(const Connection *conn, Message *message) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- parcAssertNotNull(message, "Parameter message must be non-null");
-
- if (ioOperations_IsUp(conn->ops)) {
- if (message_GetType(message) == MessagePacketType_ContentObject) {
- uint8_t connectionId = (uint8_t)connection_GetConnectionId(conn);
- message_UpdatePathLabel(message, connectionId);
- }
- if (conn->wldr != NULL) {
- wldr_SetLabel(conn->wldr, message);
- } else {
- message_ResetWldrLabel(message);
- }
- return ioOperations_Send(conn->ops, NULL, message);
- }
- return false;
-}
-
-bool connection_SendCommandResponse(const Connection *conn, struct iovec *msg){
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- parcAssertNotNull(msg, "Parameter message must be non-null");
-
- return ioOperations_SendCommandResponse(conn->ops, msg);
-}
-
-static void _sendProbe(Connection *conn, unsigned probeType, uint8_t *message) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
-
- if (probeType == PACKET_TYPE_PROBE_REQUEST) {
- Ticks now = ioOperations_SendProbe(conn->ops, probeType, message);
- if (now != 0) {
- conn->last_sent = now;
- }
- } else {
- ioOperations_SendProbe(conn->ops, probeType, message);
- }
-}
-
-void connection_Probe(Connection *conn) {
- _sendProbe(conn, PACKET_TYPE_PROBE_REQUEST, NULL);
-}
-
-void connection_HandleProbe(Connection *conn, uint8_t *probe,
- Ticks actualTime) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- parcAssertNotNull(probe, "Parameter pkt must be non-null");
-
- uint8_t probeType = messageHandler_GetProbePacketType(probe);
- if (probeType == PACKET_TYPE_PROBE_REQUEST) {
- _sendProbe(conn, PACKET_TYPE_PROBE_REPLY, probe);
- } else if (probeType == PACKET_TYPE_PROBE_REPLY) {
- Ticks delay = actualTime - conn->last_sent;
- if (delay == 0) {
- delay = 1;
- }
- if (delay < conn->delay) {
- conn->delay = delay;
- }
- } else {
- printf("receivde unkwon probe type\n");
- }
-}
-
-uint64_t connection_GetDelay(Connection *conn) { return (uint64_t)conn->delay; }
-
-IoOperations *connection_GetIoOperations(const Connection *conn) {
- return conn->ops;
-}
-
-unsigned connection_GetConnectionId(const Connection *conn) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- return ioOperations_GetConnectionId(conn->ops);
-}
-
-const AddressPair *connection_GetAddressPair(const Connection *conn) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- return ioOperations_GetAddressPair(conn->ops);
-}
-
-bool connection_IsUp(const Connection *conn) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- if (!conn->ops) return false;
- return ioOperations_IsUp(conn->ops);
-}
-
-bool connection_IsLocal(const Connection *conn) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- return ioOperations_IsLocal(conn->ops);
-}
-
-const void *connection_Class(const Connection *conn) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- return ioOperations_Class(conn->ops);
-}
-
-bool connection_ReSend(const Connection *conn, Message *message,
- bool notification) {
- parcAssertNotNull(conn, "Parameter conn must be non-null");
- parcAssertNotNull(message, "Parameter message must be non-null");
- bool res = false;
-
- if (connection_IsUp(conn)) {
- // here the wldr header is alreay set: this message is a retransmission or a
- // notification
-
- // we need to recompiute the path lable since we always store a pointer to
- // the same message if this message will be sent again to someonelse, the
- // new path label must be computed starting from the orignal labelorignal
- // label. Notice that we heve the same problem in case of PIT aggregation.
- // That case is handled insied the MessageProcessor. This is specific to
- // WLDR retransmittions. This is done only for data packets
-
- if (message_GetType(message) == MessagePacketType_ContentObject) {
- uint8_t connectionId = (uint8_t)connection_GetConnectionId(conn);
- uint32_t old_path_label = message_GetPathLabel(message);
- message_UpdatePathLabel(message, connectionId);
-
- res = ioOperations_Send(conn->ops, NULL, message);
-
- message_SetPathLabel(message, old_path_label);
- } else {
- res = ioOperations_Send(conn->ops, NULL, message);
- }
- }
-
- if (notification) {
- // the notification is never destroyed
- message_Release(&message);
- }
-
- return res;
-}
-
-void connection_AllowWldrAutoStart(Connection *conn, bool allow) {
- conn->wldrAutoStart = allow;
-}
-
-void connection_EnableWldr(Connection *conn) {
- if (!connection_IsLocal(conn)) {
- if (conn->wldr == NULL) {
- printf("----------------- enable wldr\n");
- conn->wldr = wldr_Init();
- }
- }
-}
-
-void connection_DisableWldr(Connection *conn) {
- if (!connection_IsLocal(conn)) {
- if (conn->wldr != NULL) {
- printf("----------------- disable wldr\n");
- wldr_Destroy(&(conn->wldr));
- conn->wldr = NULL;
- }
- }
-}
-
-bool connection_HasWldr(const Connection *conn) {
- if (conn->wldr == NULL) {
- return false;
- } else {
- return true;
- }
-}
-
-bool connection_WldrAutoStartAllowed(const Connection *conn) {
- return conn->wldrAutoStart;
-}
-
-void connection_DetectLosses(Connection *conn, Message *message) {
- if (conn->wldr != NULL) wldr_DetectLosses(conn->wldr, conn, message);
-}
-
-void connection_HandleWldrNotification(Connection *conn, Message *message) {
- if (conn->wldr != NULL)
- wldr_HandleWldrNotification(conn->wldr, conn, message);
-}