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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 "EventLog.h"
#include <stdarg.h>
#include <stdlib.h>
using namespace apache::thrift::concurrency;
namespace {
// Define environment variable DEBUG_EVENTLOG to enable debug logging
// ex: $ DEBUG_EVENTLOG=1 processor_test
static const char * DEBUG_EVENTLOG = getenv("DEBUG_EVENTLOG");
void debug(const char* fmt, ...) {
if (DEBUG_EVENTLOG) {
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
}
}
}
namespace apache {
namespace thrift {
namespace test {
uint32_t EventLog::nextId_ = 0;
#define EVENT_TYPE(value) EventType EventLog::value = #value
EVENT_TYPE(ET_LOG_END);
EVENT_TYPE(ET_CONN_CREATED);
EVENT_TYPE(ET_CONN_DESTROYED);
EVENT_TYPE(ET_CALL_STARTED);
EVENT_TYPE(ET_CALL_FINISHED);
EVENT_TYPE(ET_PROCESS);
EVENT_TYPE(ET_PRE_READ);
EVENT_TYPE(ET_POST_READ);
EVENT_TYPE(ET_PRE_WRITE);
EVENT_TYPE(ET_POST_WRITE);
EVENT_TYPE(ET_ASYNC_COMPLETE);
EVENT_TYPE(ET_HANDLER_ERROR);
EVENT_TYPE(ET_CALL_INCREMENT_GENERATION);
EVENT_TYPE(ET_CALL_GET_GENERATION);
EVENT_TYPE(ET_CALL_ADD_STRING);
EVENT_TYPE(ET_CALL_GET_STRINGS);
EVENT_TYPE(ET_CALL_GET_DATA_WAIT);
EVENT_TYPE(ET_CALL_ONEWAY_WAIT);
EVENT_TYPE(ET_CALL_EXCEPTION_WAIT);
EVENT_TYPE(ET_CALL_UNEXPECTED_EXCEPTION_WAIT);
EVENT_TYPE(ET_CALL_SET_VALUE);
EVENT_TYPE(ET_CALL_GET_VALUE);
EVENT_TYPE(ET_WAIT_RETURN);
EventLog::EventLog() {
id_ = nextId_++;
debug("New log: %d", id_);
}
void EventLog::append(EventType type,
uint32_t connectionId,
uint32_t callId,
const std::string& message) {
Synchronized s(monitor_);
debug("%d <-- %u, %u, %s \"%s\"", id_, connectionId, callId, type, message.c_str());
Event e(type, connectionId, callId, message);
events_.push_back(e);
monitor_.notify();
}
Event EventLog::waitForEvent(int64_t timeout) {
Synchronized s(monitor_);
try {
while (events_.empty()) {
monitor_.wait(timeout);
}
} catch (const TimedOutException &) {
return Event(ET_LOG_END, 0, 0, "");
}
Event event = events_.front();
events_.pop_front();
return event;
}
Event EventLog::waitForConnEvent(uint32_t connId, int64_t timeout) {
Synchronized s(monitor_);
auto it = events_.begin();
while (true) {
try {
// TODO: it would be nicer to honor timeout for the duration of this
// call, rather than restarting it for each call to wait(). It shouldn't
// be a big problem in practice, though.
while (it == events_.end()) {
monitor_.wait(timeout);
}
} catch (const TimedOutException &) {
return Event(ET_LOG_END, 0, 0, "");
}
if (it->connectionId == connId) {
Event event = *it;
events_.erase(it);
return event;
}
}
}
}
}
} // apache::thrift::test
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