llvm16 targets

1 files changed, 160 insertions, 0 deletions

diff --git a/contrib/libs/llvm16/lib/Debuginfod/HTTPClient.cpp b/contrib/libs/llvm16/lib/Debuginfod/HTTPClient.cpp
new file mode 100644
index 00000000000..ab92c351dc0
--- /dev/null
+++ b/contrib/libs/llvm16/lib/Debuginfod/HTTPClient.cpp
@@ -0,0 +1,160 @@
+//===-- llvm/Debuginfod/HTTPClient.cpp - HTTP client library ----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file defines the implementation of the HTTPClient library for issuing
+/// HTTP requests and handling the responses.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Debuginfod/HTTPClient.h"
+#include "llvm/ADT/APInt.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Errc.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/MemoryBuffer.h"
+#ifdef LLVM_ENABLE_CURL
+#error #include <curl/curl.h>
+#endif
+
+using namespace llvm;
+
+HTTPRequest::HTTPRequest(StringRef Url) { this->Url = Url.str(); }
+
+bool operator==(const HTTPRequest &A, const HTTPRequest &B) {
+  return A.Url == B.Url && A.Method == B.Method &&
+         A.FollowRedirects == B.FollowRedirects;
+}
+
+HTTPResponseHandler::~HTTPResponseHandler() = default;
+
+bool HTTPClient::IsInitialized = false;
+
+class HTTPClientCleanup {
+public:
+  ~HTTPClientCleanup() { HTTPClient::cleanup(); }
+};
+static const HTTPClientCleanup Cleanup;
+
+#ifdef LLVM_ENABLE_CURL
+
+bool HTTPClient::isAvailable() { return true; }
+
+void HTTPClient::initialize() {
+  if (!IsInitialized) {
+    curl_global_init(CURL_GLOBAL_ALL);
+    IsInitialized = true;
+  }
+}
+
+void HTTPClient::cleanup() {
+  if (IsInitialized) {
+    curl_global_cleanup();
+    IsInitialized = false;
+  }
+}
+
+void HTTPClient::setTimeout(std::chrono::milliseconds Timeout) {
+  if (Timeout < std::chrono::milliseconds(0))
+    Timeout = std::chrono::milliseconds(0);
+  curl_easy_setopt(Curl, CURLOPT_TIMEOUT_MS, Timeout.count());
+}
+
+/// CurlHTTPRequest and the curl{Header,Write}Function are implementation
+/// details used to work with Curl. Curl makes callbacks with a single
+/// customizable pointer parameter.
+struct CurlHTTPRequest {
+  CurlHTTPRequest(HTTPResponseHandler &Handler) : Handler(Handler) {}
+  void storeError(Error Err) {
+    ErrorState = joinErrors(std::move(Err), std::move(ErrorState));
+  }
+  HTTPResponseHandler &Handler;
+  llvm::Error ErrorState = Error::success();
+};
+
+static size_t curlWriteFunction(char *Contents, size_t Size, size_t NMemb,
+                                CurlHTTPRequest *CurlRequest) {
+  Size *= NMemb;
+  if (Error Err =
+          CurlRequest->Handler.handleBodyChunk(StringRef(Contents, Size))) {
+    CurlRequest->storeError(std::move(Err));
+    return 0;
+  }
+  return Size;
+}
+
+HTTPClient::HTTPClient() {
+  assert(IsInitialized &&
+         "Must call HTTPClient::initialize() at the beginning of main().");
+  if (Curl)
+    return;
+  Curl = curl_easy_init();
+  assert(Curl && "Curl could not be initialized");
+  // Set the callback hooks.
+  curl_easy_setopt(Curl, CURLOPT_WRITEFUNCTION, curlWriteFunction);
+}
+
+HTTPClient::~HTTPClient() { curl_easy_cleanup(Curl); }
+
+Error HTTPClient::perform(const HTTPRequest &Request,
+                          HTTPResponseHandler &Handler) {
+  if (Request.Method != HTTPMethod::GET)
+    return createStringError(errc::invalid_argument,
+                             "Unsupported CURL request method.");
+
+  SmallString<128> Url = Request.Url;
+  curl_easy_setopt(Curl, CURLOPT_URL, Url.c_str());
+  curl_easy_setopt(Curl, CURLOPT_FOLLOWLOCATION, Request.FollowRedirects);
+
+  curl_slist *Headers = nullptr;
+  for (const std::string &Header : Request.Headers)
+    Headers = curl_slist_append(Headers, Header.c_str());
+  curl_easy_setopt(Curl, CURLOPT_HTTPHEADER, Headers);
+
+  CurlHTTPRequest CurlRequest(Handler);
+  curl_easy_setopt(Curl, CURLOPT_WRITEDATA, &CurlRequest);
+  CURLcode CurlRes = curl_easy_perform(Curl);
+  curl_slist_free_all(Headers);
+  if (CurlRes != CURLE_OK)
+    return joinErrors(std::move(CurlRequest.ErrorState),
+                      createStringError(errc::io_error,
+                                        "curl_easy_perform() failed: %s\n",
+                                        curl_easy_strerror(CurlRes)));
+  return std::move(CurlRequest.ErrorState);
+}
+
+unsigned HTTPClient::responseCode() {
+  long Code = 0;
+  curl_easy_getinfo(Curl, CURLINFO_RESPONSE_CODE, &Code);
+  return Code;
+}
+
+#else
+
+HTTPClient::HTTPClient() = default;
+
+HTTPClient::~HTTPClient() = default;
+
+bool HTTPClient::isAvailable() { return false; }
+
+void HTTPClient::initialize() {}
+
+void HTTPClient::cleanup() {}
+
+void HTTPClient::setTimeout(std::chrono::milliseconds Timeout) {}
+
+Error HTTPClient::perform(const HTTPRequest &Request,
+                          HTTPResponseHandler &Handler) {
+  llvm_unreachable("No HTTP Client implementation available.");
+}
+
+unsigned HTTPClient::responseCode() {
+  llvm_unreachable("No HTTP Client implementation available.");
+}
+
+#endif