mirror of
https://github.com/google/sandboxed-api.git
synced 2024-03-22 13:11:30 +08:00
119 lines
3.2 KiB
C++
119 lines
3.2 KiB
C++
// Copyright 2020 Google LLC
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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// Sandboxed version of multithread.c
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// Multithreaded HTTP GET requests
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#include <pthread.h>
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#include <cstdlib>
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#include <iostream>
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#include "curl_sapi.sapi.h"
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#include "sandboxed_api/util/flag.h"
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class CurlApiSandboxEx5 : public CurlSandbox {
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private:
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std::unique_ptr<sandbox2::Policy> ModifyPolicy(
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sandbox2::PolicyBuilder*) override {
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// Return a new policy
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return sandbox2::PolicyBuilder()
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.DangerDefaultAllowAll()
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.AllowUnrestrictedNetworking()
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.AddDirectory("/lib")
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.BuildOrDie();
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}
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};
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struct thread_args {
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const char* url;
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CurlApi* api;
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};
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constexpr int kThreadsnumber = 4;
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void* pull_one_url(void* args) {
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absl::Status status;
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sapi::StatusOr<CURL*> status_or_curl;
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sapi::StatusOr<int> status_or_int;
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CurlApi& api = *((thread_args*)args)->api;
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// Initialize the curl session
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status_or_curl = api.curl_easy_init();
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assert(status_or_curl.ok());
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sapi::v::RemotePtr curl(status_or_curl.value());
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assert(curl.GetValue()); // Checking curl != nullptr
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// Specify URL to get
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sapi::v::ConstCStr sapi_url(((thread_args*)args)->url);
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status_or_int =
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api.curl_easy_setopt_ptr(&curl, CURLOPT_URL, sapi_url.PtrBefore());
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assert(status_or_int.ok());
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assert(status_or_int.value() == CURLE_OK);
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// Perform the request
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status_or_int = api.curl_easy_perform(&curl);
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assert(status_or_int.ok());
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assert(status_or_int.value() == CURLE_OK);
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// Cleanup curl
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status = api.curl_easy_cleanup(&curl);
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assert(status.ok());
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return NULL;
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}
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const char* const urls[kThreadsnumber] = {
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"http://example.com", "http://example.edu", "http://example.net",
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"http://example.org"};
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int main(int argc, char** argv) {
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pthread_t tid[kThreadsnumber];
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absl::Status status;
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sapi::StatusOr<int> status_or_int;
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// Initialize sandbox2 and sapi
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CurlApiSandboxEx5 sandbox;
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status = sandbox.Init();
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assert(status.ok());
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CurlApi api(&sandbox);
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// Initialize curl (CURL_GLOBAL_DEFAULT = 3)
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status_or_int = api.curl_global_init(3l);
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assert(status_or_int.ok());
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assert(status_or_int.value() == CURLE_OK);
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// Create the threads
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for (int i = 0; i < kThreadsnumber; ++i) {
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thread_args args = {urls[i], &api};
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int error = pthread_create(&tid[i], NULL, pull_one_url, (void*)&args);
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assert(!error);
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std::cout << "Thread " << i << " gets " << urls[i] << std::endl;
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}
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// Join the threads
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for (int i = 0; i < kThreadsnumber; i++) {
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pthread_join(tid[i], NULL);
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std::cout << "Thread " << i << " terminated" << std::endl;
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}
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// Cleanup curl
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status = api.curl_global_cleanup();
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assert(status.ok());
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return EXIT_SUCCESS;
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}
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