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HTTPDownloaderCurl: Set CURL_NOSIGNAL and block SIGPIPE

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This commit is contained in:
Connor McLaughlin 2021-04-20 12:25:28 +10:00
parent 5af6424324
commit 045eb8be76
1 changed files with 15 additions and 0 deletions
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15
src/frontend-common/http_downloader_curl.cpp
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@ -5,6 +5,8 @@
#include "common/timer.h"
#include <algorithm>
#include <functional>
#include <pthread.h>
#include <signal.h>
Log_SetChannel(HTTPDownloaderCurl);
namespace FrontendCommon {
@ -70,6 +72,15 @@ void HTTPDownloaderCurl::ProcessRequest(Request* req)
cancel_lock.unlock();
// Apparently OpenSSL can fire SIGPIPE...
sigset_t old_block_mask = {};
sigset_t new_block_mask = {};
sigemptyset(&old_block_mask);
sigemptyset(&new_block_mask);
sigaddset(&new_block_mask, SIGPIPE);
if (pthread_sigmask(SIG_BLOCK, &new_block_mask, &old_block_mask) != 0)
Log_WarningPrint("Failed to block SIGPIPE");
req->start_time = Common::Timer::GetValue();
int ret = curl_easy_perform(req->handle);
if (ret == CURLE_OK)
@ -87,6 +98,9 @@ void HTTPDownloaderCurl::ProcessRequest(Request* req)
curl_easy_cleanup(req->handle);
if (pthread_sigmask(SIG_UNBLOCK, &new_block_mask, &old_block_mask) != 0)
Log_WarningPrint("Failed to unblock SIGPIPE");
cancel_lock.lock();
req->state = Request::State::Complete;
if (req->closed.load())
@ -120,6 +134,7 @@ bool HTTPDownloaderCurl::StartRequest(HTTPDownloader::Request* request)
curl_easy_setopt(req->handle, CURLOPT_USERAGENT, m_user_agent.c_str());
curl_easy_setopt(req->handle, CURLOPT_WRITEFUNCTION, &HTTPDownloaderCurl::WriteCallback);
curl_easy_setopt(req->handle, CURLOPT_WRITEDATA, req);
curl_easy_setopt(req->handle, CURLOPT_NOSIGNAL, 1);
if (request->type == Request::Type::Post)
{