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-rw-r--r--hicn-light/src/hicn/core/dispatcher.c474
1 files changed, 0 insertions, 474 deletions
diff --git a/hicn-light/src/hicn/core/dispatcher.c b/hicn-light/src/hicn/core/dispatcher.c
deleted file mode 100644
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--- a/hicn-light/src/hicn/core/dispatcher.c
+++ /dev/null
@@ -1,474 +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.
- */
-
-/**
- * @header dispatcher.c
- * @abstract Event dispatcher for hicn-light. Uses parcEvent
- * @discussion
- * Wraps the functions we use in parcEvent, along with StreamBuffer and
- * Message. The dispatcher is the event loop, so it manages things like signals,
- * timers, and network events.
- */
-
-#ifndef _WIN32
-#include <arpa/inet.h>
-#include <sys/socket.h>
-#include <unistd.h>
-#endif
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <hicn/hicn-light/config.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#include <parc/algol/parc_EventQueue.h>
-#include <parc/algol/parc_EventTimer.h>
-
-#include <parc/assert/parc_Assert.h>
-
-#include <hicn/core/dispatcher.h>
-
-#include <pthread.h>
-
-#ifndef INPORT_ANY
-#define INPORT_ANY 0
-#endif
-
-struct dispatcher {
- PARCEventScheduler *Base;
- Logger *logger;
-};
-
-// ==========================================
-// Public API
-
-PARCEventScheduler *dispatcher_GetEventScheduler(Dispatcher *dispatcher) {
- return dispatcher->Base;
-}
-
-Dispatcher *dispatcher_Create(Logger *logger) {
- Dispatcher *dispatcher = parcMemory_AllocateAndClear(sizeof(Dispatcher));
- parcAssertNotNull(dispatcher,
- "parcMemory_AllocateAndClear(%zu) returned NULL",
- sizeof(Dispatcher));
-
- dispatcher->Base = parcEventScheduler_Create();
- dispatcher->logger = logger_Acquire(logger);
-
- parcAssertNotNull(dispatcher->Base,
- "Got NULL from parcEventScheduler_Create()");
-
- return dispatcher;
-}
-
-void dispatcher_Destroy(Dispatcher **dispatcherPtr) {
- parcAssertNotNull(dispatcherPtr, "Parameter must be non-null double pointer");
- parcAssertNotNull(*dispatcherPtr,
- "Parameter must dereference to non-null pointer");
- Dispatcher *dispatcher = *dispatcherPtr;
-
- logger_Release(&dispatcher->logger);
- parcEventScheduler_Destroy(&(dispatcher->Base));
- parcMemory_Deallocate((void **)&dispatcher);
- *dispatcherPtr = NULL;
-}
-
-void dispatcher_Stop(Dispatcher *dispatcher) {
- struct timeval delay = {0, 1000};
-
- parcEventScheduler_Stop(dispatcher->Base, &delay);
-}
-
-void dispatcher_Run(Dispatcher *dispatcher) {
- parcAssertNotNull(dispatcher, "Parameter must be non-null");
-
- parcEventScheduler_Start(dispatcher->Base, 0);
-}
-
-void dispatcher_RunDuration(Dispatcher *dispatcher, struct timeval *duration) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(duration, "Parameter duration must be non-null");
-
- parcEventScheduler_Stop(dispatcher->Base, duration);
- parcEventScheduler_Start(dispatcher->Base, 0);
-}
-
-void dispatcher_RunCount(Dispatcher *dispatcher, unsigned count) {
- parcAssertNotNull(dispatcher, "Parameter must be non-null");
-
- for (unsigned i = 0; i < count; i++) {
- parcEventScheduler_Start(dispatcher->Base,
- PARCEventSchedulerDispatchType_LoopOnce);
- }
-}
-
-PARCEventSocket *dispatcher_CreateListener(Dispatcher *dispatcher,
- PARCEventSocket_Callback *callback,
- void *user_data, int backlog,
- const struct sockaddr *sa,
- int socklen) {
- PARCEventSocket *listener = parcEventSocket_Create(
- dispatcher->Base, callback, NULL, user_data, sa, socklen);
- if (listener == NULL) {
- perror("Problem creating listener");
- }
- return listener;
-}
-
-void dispatcher_DestroyListener(Dispatcher *dispatcher,
- PARCEventSocket **listenerPtr) {
- parcAssertNotNull(listenerPtr, "Parameter must be non-null double pointer");
- parcAssertNotNull(*listenerPtr,
- "Parameter must dereference to non-null pointer");
- parcEventSocket_Destroy(listenerPtr);
-}
-
-PARCEventQueue *dispatcher_CreateStreamBufferFromSocket(Dispatcher *dispatcher,
- SocketType fd) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- PARCEventQueue *buffer = parcEventQueue_Create(
- dispatcher->Base, fd,
- PARCEventQueueOption_CloseOnFree | PARCEventQueueOption_DeferCallbacks);
- parcAssertNotNull(buffer,
- "Got null from parcEventBufver_Create for socket %d", fd);
- return buffer;
-}
-
-PARCEventTimer *dispatcher_CreateTimer(Dispatcher *dispatcher, bool isPeriodic,
- PARCEvent_Callback *callback,
- void *userData) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(callback, "Parameter callback must be non-null");
-
- PARCEventType flags = 0;
- if (isPeriodic) {
- flags |= PARCEventType_Persist;
- }
- PARCEventTimer *event =
- parcEventTimer_Create(dispatcher->Base, flags, callback, userData);
- return event;
-}
-
-void dispatcher_StartTimer(Dispatcher *dispatcher, PARCEventTimer *timerEvent,
- struct timeval *delay) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(timerEvent, "Parameter timerEvent must be non-null");
- int failure = parcEventTimer_Start(timerEvent, delay);
- parcAssertFalse(failure < 0, "Error starting timer event %p: (%d) %s",
- (void *)timerEvent, errno, strerror(errno));
-}
-
-void dispatcher_StopTimer(Dispatcher *dispatcher, PARCEventTimer *event) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(event, "Parameter event must be non-null");
-
- int failure = parcEventTimer_Stop(event);
- parcAssertFalse(failure < 0, "Error stopping signal event %p: (%d) %s",
- (void *)event, errno, strerror(errno));
-}
-
-void dispatcher_DestroyTimerEvent(Dispatcher *dispatcher,
- PARCEventTimer **eventPtr) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(eventPtr,
- "Parameter eventPtr must be non-null double pointer");
- parcAssertNotNull(*eventPtr,
- "Paramter eventPtr must dereference to non-null pointer");
-
- parcEventTimer_Destroy(eventPtr);
- eventPtr = NULL;
-}
-
-PARCEvent *dispatcher_CreateNetworkEvent(Dispatcher *dispatcher,
- bool isPersistent,
- PARCEvent_Callback *callback,
- void *userData, int fd) {
- short flags = PARCEventType_Timeout | PARCEventType_Read;
- if (isPersistent) {
- flags |= PARCEventType_Persist;
- }
-
- PARCEvent *event =
- parcEvent_Create(dispatcher->Base, fd, flags, callback, userData);
- parcAssertNotNull(event, "Got null from parcEvent_Create for socket %d", fd);
- return event;
-}
-
-void dispatcher_DestroyNetworkEvent(Dispatcher *dispatcher,
- PARCEvent **eventPtr) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(eventPtr,
- "Parameter eventPtr must be non-null double pointer");
- parcAssertNotNull(*eventPtr,
- "Paramter eventPtr must dereference to non-null pointer");
-
- parcEvent_Destroy(eventPtr);
- eventPtr = NULL;
-}
-
-void dispatcher_StartNetworkEvent(Dispatcher *dispatcher, PARCEvent *event) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(event, "Parameter event must be non-null");
-
- int failure = parcEvent_Start(event);
- parcAssertFalse(failure < 0, "Error starting signal event %p: (%d) %s",
- (void *)event, errno, strerror(errno));
-}
-
-void dispatcher_StopNetworkEvent(Dispatcher *dispatcher, PARCEvent *event) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(event, "Parameter event must be non-null");
-
- int failure = parcEvent_Stop(event);
- parcAssertFalse(failure < 0, "Error stopping signal event %p: (%d) %s",
- (void *)event, errno, strerror(errno));
-}
-
-PARCEventSignal *dispatcher_CreateSignalEvent(
- Dispatcher *dispatcher, PARCEventSignal_Callback *callback, void *userData,
- int signal) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(callback, "Parameter callback must be non-null");
-
- PARCEventSignal *event = parcEventSignal_Create(
- dispatcher->Base, signal, PARCEventType_Signal | PARCEventType_Persist,
- callback, userData);
- parcAssertNotNull(event,
- "Got null event when creating signal catcher for signal %d",
- signal);
-
- return event;
-}
-
-void dispatcher_DestroySignalEvent(Dispatcher *dispatcher,
- PARCEventSignal **eventPtr) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(eventPtr,
- "Parameter eventPtr must be non-null double pointer");
- parcAssertNotNull(*eventPtr,
- "Paramter eventPtr must dereference to non-null pointer");
-
- parcEventSignal_Destroy(eventPtr);
- eventPtr = NULL;
-}
-
-void dispatcher_StartSignalEvent(Dispatcher *dispatcher,
- PARCEventSignal *event) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(event, "Parameter event must be non-null");
-
- int failure = parcEventSignal_Start(event);
- parcAssertFalse(failure < 0, "Error starting signal event %p: (%d) %s",
- (void *)event, errno, strerror(errno));
-}
-
-void dispatcher_StopSignalEvent(Dispatcher *dispatcher,
- PARCEventSignal *event) {
- parcAssertNotNull(dispatcher, "Parameter dispatcher must be non-null");
- parcAssertNotNull(event, "Parameter event must be non-null");
-
- int failure = parcEventSignal_Stop(event);
- parcAssertFalse(failure < 0, "Error stopping signal event %p: (%d) %s",
- (void *)event, errno, strerror(errno));
-}
-
-/**
- * Bind to a local address/port then connect to peer.
- */
-static bool dispatcher_StreamBufferBindAndConnect(Dispatcher *dispatcher,
- PARCEventQueue *buffer,
- struct sockaddr *localSock,
- socklen_t localSockLength,
- struct sockaddr *remoteSock,
- socklen_t remoteSockLength) {
- // we need to bind, then connect. Special operation, so we make our
- // own fd then pass it off to the buffer event
-
-#ifndef _WIN32
- int fd = socket(localSock->sa_family, SOCK_STREAM, 0);
- if (fd < 0) {
- perror("socket");
- return -1;
- }
-
- // Set non-blocking flag
- int flags = fcntl(fd, F_GETFL, NULL);
- if (flags < 0) {
- perror("F_GETFL");
- close(fd);
- return -1;
- }
- int failure = fcntl(fd, F_SETFL, flags | O_NONBLOCK);
- if (failure) {
- perror("F_SETFL");
- close(fd);
- return -1;
- }
-
- failure = bind(fd, localSock, localSockLength);
- if (failure) {
- perror("bind");
- close(fd);
- return false;
- }
-
- parcEventQueue_SetFileDescriptor(buffer, fd);
-
- failure = parcEventQueue_ConnectSocket(buffer, remoteSock, remoteSockLength);
- if (failure && (errno != EINPROGRESS)) {
- perror("connect");
- close(fd);
- return false;
- }
-#else
- SOCKET fd = socket(localSock->sa_family, SOCK_STREAM, 0);
- if (fd == INVALID_SOCKET) {
- perror("socket");
- return -1;
- }
-
- // Set non-blocking flag
- u_long mode = 1;
- int result = ioctlsocket(fd, FIONBIO, &mode);
- if (result == NO_ERROR) {
- perror("ioctlsocket error");
- closesocket(fd);
- WSACleanup();
- return -1;
- }
-
- int failure = bind(fd, localSock, (int)localSockLength);
- if (failure) {
- perror("bind");
- closesocket(fd);
- WSACleanup();
- return false;
- }
-
- parcEventQueue_SetFileDescriptor(buffer, (int)fd);
-
- failure = parcEventQueue_ConnectSocket(buffer, remoteSock, remoteSockLength);
- if (failure && (errno != EINPROGRESS)) {
- perror("connect");
- closesocket(fd);
- WSACleanup();
- return false;
- }
-#endif
-
- return true;
-}
-
-/**
- * Connect to an INET peer
- * @return NULL on error, otherwise a streambuffer
- */
-static PARCEventQueue *dispatcher_StreamBufferConnect_INET(
- Dispatcher *dispatcher, const Address *localAddress,
- const Address *remoteAddress) {
- struct sockaddr_in localSock, remoteSock;
- addressGetInet(localAddress, &localSock);
- addressGetInet(remoteAddress, &remoteSock);
-
- PARCEventQueue *buffer = parcEventQueue_Create(
- dispatcher->Base, -1, PARCEventQueueOption_CloseOnFree);
- parcAssertNotNull(buffer, "got null buffer from parcEventQueue_Create()");
-
- bool success = dispatcher_StreamBufferBindAndConnect(
- dispatcher, buffer, (struct sockaddr *)&localSock, sizeof(localSock),
- (struct sockaddr *)&remoteSock, sizeof(remoteSock));
- if (!success) {
- parcEventQueue_Destroy(&buffer);
- buffer = NULL;
- }
-
- return buffer;
-}
-
-/**
- * Connect to an INET peer
- * @return NULL on error, otherwise a streambuffer
- */
-static PARCEventQueue *
-// static StreamBuffer *
-dispatcher_StreamBufferConnect_INET6(Dispatcher *dispatcher,
- const Address *localAddress,
- const Address *remoteAddress) {
- struct sockaddr_in6 localSock, remoteSock;
- addressGetInet6(localAddress, &localSock);
- addressGetInet6(remoteAddress, &remoteSock);
-
- PARCEventQueue *buffer = parcEventQueue_Create(
- dispatcher->Base, -1, PARCEventQueueOption_CloseOnFree);
- parcAssertNotNull(buffer, "got null buffer from parcEventQueue_Create()");
-
- bool success = dispatcher_StreamBufferBindAndConnect(
- dispatcher, buffer, (struct sockaddr *)&localSock, sizeof(localSock),
- (struct sockaddr *)&remoteSock, sizeof(remoteSock));
- if (!success) {
- parcEventQueue_Destroy(&buffer);
- buffer = NULL;
- }
-
- return buffer;
-}
-
-PARCEventQueue *dispatcher_StreamBufferConnect(Dispatcher *dispatcher,
- const AddressPair *pair) {
- const Address *localAddress = addressPair_GetLocal(pair);
- const Address *remoteAddress = addressPair_GetRemote(pair);
-
- // they must be of the same address family
- if (addressGetType(localAddress) != addressGetType(remoteAddress)) {
- char message[2048];
- char *localAddressString = addressToString(localAddress);
- char *remoteAddressString = addressToString(remoteAddress);
- snprintf(message, 2048,
- "Remote address not same type as local address, expected %d got "
- "%d\nlocal %s remote %s",
- addressGetType(localAddress), addressGetType(remoteAddress),
- localAddressString, remoteAddressString);
-
- parcMemory_Deallocate((void **)&localAddressString);
- parcMemory_Deallocate((void **)&remoteAddressString);
-
- parcAssertTrue(
- addressGetType(localAddress) == addressGetType(remoteAddress), "%s",
- message);
- }
-
- address_type type = addressGetType(localAddress);
-
- PARCEventQueue *result = NULL;
-
- switch (type) {
- case ADDR_INET:
- return dispatcher_StreamBufferConnect_INET(dispatcher, localAddress,
- remoteAddress);
- break;
- case ADDR_INET6:
- return dispatcher_StreamBufferConnect_INET6(dispatcher, localAddress,
- remoteAddress);
- break;
- default:
- parcTrapIllegalValue(type, "local address unsupported address type: %d",
- type);
- }
- return result;
-}