mirror of
https://github.com/sogou/workflow.git
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98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
/*
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Copyright (c) 2021 Sogou, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Author: Xie Han (xiehan@sogou-inc.com;63350856@qq.com)
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*/
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#include <stdio.h>
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#include "workflow/WFTaskFactory.h"
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#include "workflow/WFGraphTask.h"
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#include "workflow/HttpMessage.h"
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#include "workflow/WFFacilities.h"
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using namespace protocol;
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static WFFacilities::WaitGroup wait_group(1);
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void go_func(size_t *size1, size_t *size2)
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{
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printf("page1 size = %zu, page2 size = %zu\n", *size1, *size2);
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}
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void http_callback(WFHttpTask *task)
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{
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size_t *size = (size_t *)task->user_data;
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const void *body;
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if (task->get_state() == WFT_STATE_SUCCESS)
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task->get_resp()->get_parsed_body(&body, size);
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else
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*size = (size_t)-1;
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}
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#define REDIRECT_MAX 3
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#define RETRY_MAX 1
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int main(void)
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{
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WFTimerTask *timer;
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WFHttpTask *http_task1;
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WFHttpTask *http_task2;
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WFGoTask *go_task;
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size_t size1;
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size_t size2;
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timer = WFTaskFactory::create_timer_task(1000000, [](WFTimerTask *) {
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printf("timer task complete(1s).\n");
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});
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/* Http task1 */
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http_task1 = WFTaskFactory::create_http_task("https://www.sogou.com/",
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REDIRECT_MAX, RETRY_MAX,
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http_callback);
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http_task1->user_data = &size1;
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/* Http task2 */
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http_task2 = WFTaskFactory::create_http_task("https://www.baidu.com/",
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REDIRECT_MAX, RETRY_MAX,
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http_callback);
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http_task2->user_data = &size2;
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/* go task will print the http pages's size */
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go_task = WFTaskFactory::create_go_task("go", go_func, &size1, &size2);
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/* Greate a graph. graph is also a kind of task */
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WFGraphTask *graph = WFTaskFactory::create_graph_task([](WFGraphTask *) {
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printf("Graph task complete. Wakeup main process\n");
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wait_group.done();
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});
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/* Greate graph nodes */
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WFGraphNode& a = graph->create_graph_node(timer);
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WFGraphNode& b = graph->create_graph_node(http_task1);
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WFGraphNode& c = graph->create_graph_node(http_task2);
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WFGraphNode& d = graph->create_graph_node(go_task);
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/* Build the graph */
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a-->b;
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a-->c;
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b-->d;
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c-->d;
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graph->start();
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wait_group.wait();
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}
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