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DataTransfer -> FileTransfer

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This commit is contained in:
Nikola Knezevic 2020-04-06 23:43:43 +02:00
parent 7848372b0f
commit c330109bfa
13 changed files with 107 additions and 107 deletions
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2
src/libstore/build.cc
View file

@ -361,7 +361,7 @@ public:
{
actDerivations.progress(doneBuilds, expectedBuilds + doneBuilds, runningBuilds, failedBuilds);
actSubstitutions.progress(doneSubstitutions, expectedSubstitutions + doneSubstitutions, runningSubstitutions, failedSubstitutions);
act.setExpected(actDataTransfer, expectedDownloadSize + doneDownloadSize);
act.setExpected(actFileTransfer, expectedDownloadSize + doneDownloadSize);
act.setExpected(actCopyPath, expectedNarSize + doneNarSize);
}
};

8
src/libstore/builtins/fetchurl.cc
View file

@ -26,9 +26,9 @@ void builtinFetchurl(const BasicDerivation & drv, const std::string & netrcData)
auto mainUrl = getAttr("url");
bool unpack = get(drv.env, "unpack").value_or("") == "1";
/* Note: have to use a fresh dataTransfer here because we're in
/* Note: have to use a fresh fileTransfer here because we're in
a forked process. */
auto dataTransfer = makeDataTransfer();
auto fileTransfer = makeFileTransfer();
auto fetch = [&](const std::string & url) {
@ -36,13 +36,13 @@ void builtinFetchurl(const BasicDerivation & drv, const std::string & netrcData)
/* No need to do TLS verification, because we check the hash of
the result anyway. */
DataTransferRequest request(url);
FileTransferRequest request(url);
request.verifyTLS = false;
request.decompress = false;
auto decompressor = makeDecompressionSink(
unpack && hasSuffix(mainUrl, ".xz") ? "xz" : "none", sink);
dataTransfer->download(std::move(request), *decompressor);
fileTransfer->download(std::move(request), *decompressor);
decompressor->finish();
});

94
src/libstore/datatransfer.cc
View file

@ -27,9 +27,9 @@ using namespace std::string_literals;
namespace nix {
DataTransferSettings dataTransferSettings;
FileTransferSettings fileTransferSettings;
static GlobalConfig::Register r1(&dataTransferSettings);
static GlobalConfig::Register r1(&fileTransferSettings);
std::string resolveUri(const std::string & uri)
{
@ -39,7 +39,7 @@ std::string resolveUri(const std::string & uri)
return uri;
}
struct curlDataTransfer : public DataTransfer
struct curlFileTransfer : public FileTransfer
{
CURLM * curlm = 0;
@ -48,12 +48,12 @@ struct curlDataTransfer : public DataTransfer
struct TransferItem : public std::enable_shared_from_this<TransferItem>
{
curlDataTransfer & dataTransfer;
DataTransferRequest request;
DataTransferResult result;
curlFileTransfer & fileTransfer;
FileTransferRequest request;
FileTransferResult result;
Activity act;
bool done = false; // whether either the success or failure function has been called
Callback<DataTransferResult> callback;
Callback<FileTransferResult> callback;
CURL * req = 0;
bool active = false; // whether the handle has been added to the multi object
std::string status;
@ -72,12 +72,12 @@ struct curlDataTransfer : public DataTransfer
curl_off_t writtenToSink = 0;
TransferItem(curlDataTransfer & dataTransfer,
const DataTransferRequest & request,
Callback<DataTransferResult> && callback)
: dataTransfer(dataTransfer)
TransferItem(curlFileTransfer & fileTransfer,
const FileTransferRequest & request,
Callback<FileTransferResult> && callback)
: fileTransfer(fileTransfer)
, request(request)
, act(*logger, lvlTalkative, actDataTransfer,
, act(*logger, lvlTalkative, actFileTransfer,
fmt(request.data ? "uploading '%s'" : "downloading '%s'", request.uri),
{request.uri}, request.parentAct)
, callback(std::move(callback))
@ -106,13 +106,13 @@ struct curlDataTransfer : public DataTransfer
{
if (req) {
if (active)
curl_multi_remove_handle(dataTransfer.curlm, req);
curl_multi_remove_handle(fileTransfer.curlm, req);
curl_easy_cleanup(req);
}
if (requestHeaders) curl_slist_free_all(requestHeaders);
try {
if (!done)
fail(DataTransferError(Interrupted, format("download of '%s' was interrupted") % request.uri));
fail(FileTransferError(Interrupted, format("download of '%s' was interrupted") % request.uri));
} catch (...) {
ignoreException();
}
@ -257,12 +257,12 @@ struct curlDataTransfer : public DataTransfer
curl_easy_setopt(req, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(req, CURLOPT_USERAGENT,
("curl/" LIBCURL_VERSION " Nix/" + nixVersion +
(dataTransferSettings.userAgentSuffix != "" ? " " + dataTransferSettings.userAgentSuffix.get() : "")).c_str());
(fileTransferSettings.userAgentSuffix != "" ? " " + fileTransferSettings.userAgentSuffix.get() : "")).c_str());
#if LIBCURL_VERSION_NUM >= 0x072b00
curl_easy_setopt(req, CURLOPT_PIPEWAIT, 1);
#endif
#if LIBCURL_VERSION_NUM >= 0x072f00
if (dataTransferSettings.enableHttp2)
if (fileTransferSettings.enableHttp2)
curl_easy_setopt(req, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2TLS);
else
curl_easy_setopt(req, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
@ -297,10 +297,10 @@ struct curlDataTransfer : public DataTransfer
curl_easy_setopt(req, CURLOPT_SSL_VERIFYHOST, 0);
}
curl_easy_setopt(req, CURLOPT_CONNECTTIMEOUT, dataTransferSettings.connectTimeout.get());
curl_easy_setopt(req, CURLOPT_CONNECTTIMEOUT, fileTransferSettings.connectTimeout.get());
curl_easy_setopt(req, CURLOPT_LOW_SPEED_LIMIT, 1L);
curl_easy_setopt(req, CURLOPT_LOW_SPEED_TIME, dataTransferSettings.stalledDownloadTimeout.get());
curl_easy_setopt(req, CURLOPT_LOW_SPEED_TIME, fileTransferSettings.stalledDownloadTimeout.get());
/* If no file exist in the specified path, curl continues to work
anyway as if netrc support was disabled. */
@ -401,14 +401,14 @@ struct curlDataTransfer : public DataTransfer
auto exc =
code == CURLE_ABORTED_BY_CALLBACK && _isInterrupted
? DataTransferError(Interrupted, fmt("%s of '%s' was interrupted", request.verb(), request.uri))
? FileTransferError(Interrupted, fmt("%s of '%s' was interrupted", request.verb(), request.uri))
: httpStatus != 0
? DataTransferError(err,
? FileTransferError(err,
fmt("unable to %s '%s': HTTP error %d",
request.verb(), request.uri, httpStatus)
+ (code == CURLE_OK ? "" : fmt(" (curl error: %s)", curl_easy_strerror(code)))
)
: DataTransferError(err,
: FileTransferError(err,
fmt("unable to %s '%s': %s (%d)",
request.verb(), request.uri, curl_easy_strerror(code), code));
@ -422,13 +422,13 @@ struct curlDataTransfer : public DataTransfer
|| writtenToSink == 0
|| (acceptRanges && encoding.empty())))
{
int ms = request.baseRetryTimeMs * std::pow(2.0f, attempt - 1 + std::uniform_real_distribution<>(0.0, 0.5)(dataTransfer.mt19937));
int ms = request.baseRetryTimeMs * std::pow(2.0f, attempt - 1 + std::uniform_real_distribution<>(0.0, 0.5)(fileTransfer.mt19937));
if (writtenToSink)
warn("%s; retrying from offset %d in %d ms", exc.what(), writtenToSink, ms);
else
warn("%s; retrying in %d ms", exc.what(), ms);
embargo = std::chrono::steady_clock::now() + std::chrono::milliseconds(ms);
dataTransfer.enqueueItem(shared_from_this());
fileTransfer.enqueueItem(shared_from_this());
}
else
fail(exc);
@ -456,7 +456,7 @@ struct curlDataTransfer : public DataTransfer
std::thread workerThread;
curlDataTransfer()
curlFileTransfer()
: mt19937(rd())
{
static std::once_flag globalInit;
@ -469,7 +469,7 @@ struct curlDataTransfer : public DataTransfer
#endif
#if LIBCURL_VERSION_NUM >= 0x071e00 // Max connections requires >= 7.30.0
curl_multi_setopt(curlm, CURLMOPT_MAX_TOTAL_CONNECTIONS,
dataTransferSettings.httpConnections.get());
fileTransferSettings.httpConnections.get());
#endif
wakeupPipe.create();
@ -478,7 +478,7 @@ struct curlDataTransfer : public DataTransfer
workerThread = std::thread([&]() { workerThreadEntry(); });
}
~curlDataTransfer()
~curlFileTransfer()
{
stopWorkerThread();
@ -641,8 +641,8 @@ struct curlDataTransfer : public DataTransfer
}
#endif
void enqueueDataTransfer(const DataTransferRequest & request,
Callback<DataTransferResult> callback) override
void enqueueFileTransfer(const FileTransferRequest & request,
Callback<FileTransferResult> callback) override
{
/* Ugly hack to support s3:// URIs. */
if (hasPrefix(request.uri, "s3://")) {
@ -660,9 +660,9 @@ struct curlDataTransfer : public DataTransfer
// FIXME: implement ETag
auto s3Res = s3Helper.getObject(bucketName, key);
DataTransferResult res;
FileTransferResult res;
if (!s3Res.data)
throw DataTransferError(NotFound, fmt("S3 object '%s' does not exist", request.uri));
throw FileTransferError(NotFound, fmt("S3 object '%s' does not exist", request.uri));
res.data = s3Res.data;
callback(std::move(res));
#else
@ -676,22 +676,22 @@ struct curlDataTransfer : public DataTransfer
}
};
ref<DataTransfer> getDataTransfer()
ref<FileTransfer> getFileTransfer()
{
static ref<DataTransfer> dataTransfer = makeDataTransfer();
return dataTransfer;
static ref<FileTransfer> fileTransfer = makeFileTransfer();
return fileTransfer;
}
ref<DataTransfer> makeDataTransfer()
ref<FileTransfer> makeFileTransfer()
{
return make_ref<curlDataTransfer>();
return make_ref<curlFileTransfer>();
}
std::future<DataTransferResult> DataTransfer::enqueueDataTransfer(const DataTransferRequest & request)
std::future<FileTransferResult> FileTransfer::enqueueFileTransfer(const FileTransferRequest & request)
{
auto promise = std::make_shared<std::promise<DataTransferResult>>();
enqueueDataTransfer(request,
{[promise](std::future<DataTransferResult> fut) {
auto promise = std::make_shared<std::promise<FileTransferResult>>();
enqueueFileTransfer(request,
{[promise](std::future<FileTransferResult> fut) {
try {
promise->set_value(fut.get());
} catch (...) {
@ -701,21 +701,21 @@ std::future<DataTransferResult> DataTransfer::enqueueDataTransfer(const DataTran
return promise->get_future();
}
DataTransferResult DataTransfer::download(const DataTransferRequest & request)
FileTransferResult FileTransfer::download(const FileTransferRequest & request)
{
return enqueueDataTransfer(request).get();
return enqueueFileTransfer(request).get();
}
DataTransferResult DataTransfer::upload(const DataTransferRequest & request)
FileTransferResult FileTransfer::upload(const FileTransferRequest & request)
{
/* Note: this method is the same as download, but helps in readability */
return enqueueDataTransfer(request).get();
return enqueueFileTransfer(request).get();
}
void DataTransfer::download(DataTransferRequest && request, Sink & sink)
void FileTransfer::download(FileTransferRequest && request, Sink & sink)
{
/* Note: we can't call 'sink' via request.dataCallback, because
that would cause the sink to execute on the dataTransfer
that would cause the sink to execute on the fileTransfer
thread. If 'sink' is a coroutine, this will fail. Also, if the
sink is expensive (e.g. one that does decompression and writing
to the Nix store), it would stall the download thread too much.
@ -761,8 +761,8 @@ void DataTransfer::download(DataTransferRequest && request, Sink & sink)
state->avail.notify_one();
};
enqueueDataTransfer(request,
{[_state](std::future<DataTransferResult> fut) {
enqueueFileTransfer(request,
{[_state](std::future<FileTransferResult> fut) {
auto state(_state->lock());
state->quit = true;
try {

44
src/libstore/datatransfer.hh
View file

@ -9,7 +9,7 @@
namespace nix {
struct DataTransferSettings : Config
struct FileTransferSettings : Config
{
Setting<bool> enableHttp2{this, true, "http2",
"Whether to enable HTTP/2 support."};
@ -31,15 +31,15 @@ struct DataTransferSettings : Config
"How often Nix will attempt to download a file before giving up."};
};
extern DataTransferSettings dataTransferSettings;
extern FileTransferSettings fileTransferSettings;
struct DataTransferRequest
struct FileTransferRequest
{
std::string uri;
std::string expectedETag;
bool verifyTLS = true;
bool head = false;
size_t tries = dataTransferSettings.tries;
size_t tries = fileTransferSettings.tries;
unsigned int baseRetryTimeMs = 250;
ActivityId parentAct;
bool decompress = true;
@ -47,7 +47,7 @@ struct DataTransferRequest
std::string mimeType;
std::function<void(char *, size_t)> dataCallback;
DataTransferRequest(const std::string & uri)
FileTransferRequest(const std::string & uri)
: uri(uri), parentAct(getCurActivity()) { }
std::string verb()
@ -56,7 +56,7 @@ struct DataTransferRequest
}
};
struct DataTransferResult
struct FileTransferResult
{
bool cached = false;
std::string etag;
@ -67,43 +67,43 @@ struct DataTransferResult
class Store;
struct DataTransfer
struct FileTransfer
{
virtual ~DataTransfer() { }
virtual ~FileTransfer() { }
/* Enqueue a data transfer request, returning a future to the result of
the download. The future may throw a DataTransferError
the download. The future may throw a FileTransferError
exception. */
virtual void enqueueDataTransfer(const DataTransferRequest & request,
Callback<DataTransferResult> callback) = 0;
virtual void enqueueFileTransfer(const FileTransferRequest & request,
Callback<FileTransferResult> callback) = 0;
std::future<DataTransferResult> enqueueDataTransfer(const DataTransferRequest & request);
std::future<FileTransferResult> enqueueFileTransfer(const FileTransferRequest & request);
/* Synchronously download a file. */
DataTransferResult download(const DataTransferRequest & request);
FileTransferResult download(const FileTransferRequest & request);
/* Synchronously upload a file. */
DataTransferResult upload(const DataTransferRequest & request);
FileTransferResult upload(const FileTransferRequest & request);
/* Download a file, writing its data to a sink. The sink will be
invoked on the thread of the caller. */
void download(DataTransferRequest && request, Sink & sink);
void download(FileTransferRequest && request, Sink & sink);
enum Error { NotFound, Forbidden, Misc, Transient, Interrupted };
};
/* Return a shared DataTransfer object. Using this object is preferred
/* Return a shared FileTransfer object. Using this object is preferred
because it enables connection reuse and HTTP/2 multiplexing. */
ref<DataTransfer> getDataTransfer();
ref<FileTransfer> getFileTransfer();
/* Return a new DataTransfer object. */
ref<DataTransfer> makeDataTransfer();
/* Return a new FileTransfer object. */
ref<FileTransfer> makeFileTransfer();
class DataTransferError : public Error
class FileTransferError : public Error
{
public:
DataTransfer::Error error;
DataTransferError(DataTransfer::Error error, const FormatOrString & fs)
FileTransfer::Error error;
FileTransferError(FileTransfer::Error error, const FormatOrString & fs)
: Error(fs), error(error)
{ }
};

32
src/libstore/http-binary-cache-store.cc
View file

@ -85,14 +85,14 @@ protected:
checkEnabled();
try {
DataTransferRequest request(cacheUri + "/" + path);
FileTransferRequest request(cacheUri + "/" + path);
request.head = true;
getDataTransfer()->download(request);
getFileTransfer()->download(request);
return true;
} catch (DataTransferError & e) {
} catch (FileTransferError & e) {
/* S3 buckets return 403 if a file doesn't exist and the
bucket is unlistable, so treat 403 as 404. */
if (e.error == DataTransfer::NotFound || e.error == DataTransfer::Forbidden)
if (e.error == FileTransfer::NotFound || e.error == FileTransfer::Forbidden)
return false;
maybeDisable();
throw;
@ -103,19 +103,19 @@ protected:
const std::string & data,
const std::string & mimeType) override
{
auto req = DataTransferRequest(cacheUri + "/" + path);
auto req = FileTransferRequest(cacheUri + "/" + path);
req.data = std::make_shared<string>(data); // FIXME: inefficient
req.mimeType = mimeType;
try {
getDataTransfer()->upload(req);
} catch (DataTransferError & e) {
getFileTransfer()->upload(req);
} catch (FileTransferError & e) {
throw UploadToHTTP("while uploading to HTTP binary cache at '%s': %s", cacheUri, e.msg());
}
}
DataTransferRequest makeRequest(const std::string & path)
FileTransferRequest makeRequest(const std::string & path)
{
DataTransferRequest request(cacheUri + "/" + path);
FileTransferRequest request(cacheUri + "/" + path);
return request;
}
@ -124,9 +124,9 @@ protected:
checkEnabled();
auto request(makeRequest(path));
try {
getDataTransfer()->download(std::move(request), sink);
} catch (DataTransferError & e) {
if (e.error == DataTransfer::NotFound || e.error == DataTransfer::Forbidden)
getFileTransfer()->download(std::move(request), sink);
} catch (FileTransferError & e) {
if (e.error == FileTransfer::NotFound || e.error == FileTransfer::Forbidden)
throw NoSuchBinaryCacheFile("file '%s' does not exist in binary cache '%s'", path, getUri());
maybeDisable();
throw;
@ -142,12 +142,12 @@ protected:
auto callbackPtr = std::make_shared<decltype(callback)>(std::move(callback));
getDataTransfer()->enqueueDataTransfer(request,
{[callbackPtr, this](std::future<DataTransferResult> result) {
getFileTransfer()->enqueueFileTransfer(request,
{[callbackPtr, this](std::future<FileTransferResult> result) {
try {
(*callbackPtr)(result.get().data);
} catch (DataTransferError & e) {
if (e.error == DataTransfer::NotFound || e.error == DataTransfer::Forbidden)
} catch (FileTransferError & e) {
if (e.error == FileTransfer::NotFound || e.error == FileTransfer::Forbidden)
return (*callbackPtr)(std::shared_ptr<std::string>());
maybeDisable();
callbackPtr->rethrow();

4
src/libstore/s3-binary-cache-store.cc
View file

@ -132,7 +132,7 @@ ref<Aws::Client::ClientConfiguration> S3Helper::makeConfig(const string & region
return res;
}
S3Helper::DataTransferResult S3Helper::getObject(
S3Helper::FileTransferResult S3Helper::getObject(
const std::string & bucketName, const std::string & key)
{
debug("fetching 's3://%s/%s'...", bucketName, key);
@ -146,7 +146,7 @@ S3Helper::DataTransferResult S3Helper::getObject(
return Aws::New<std::stringstream>("STRINGSTREAM");
});
DataTransferResult res;
FileTransferResult res;
auto now1 = std::chrono::steady_clock::now();

4
src/libstore/s3.hh
View file

@ -18,13 +18,13 @@ struct S3Helper
ref<Aws::Client::ClientConfiguration> makeConfig(const std::string & region, const std::string & scheme, const std::string & endpoint);
struct DataTransferResult
struct FileTransferResult
{
std::shared_ptr<std::string> data;
unsigned int durationMs;
};
DataTransferResult getObject(
FileTransferResult getObject(
const std::string & bucketName, const std::string & key);
};

2
src/libutil/logging.cc
View file

@ -198,7 +198,7 @@ bool handleJSONLogMessage(const std::string & msg,
if (action == "start") {
auto type = (ActivityType) json["type"];
if (trusted || type == actDataTransfer)
if (trusted || type == actFileTransfer)
activities.emplace(std::piecewise_construct,
std::forward_as_tuple(json["id"]),
std::forward_as_tuple(*logger, (Verbosity) json["level"], type,

2
src/libutil/logging.hh
View file

@ -17,7 +17,7 @@ typedef enum {
typedef enum {
actUnknown = 0,
actCopyPath = 100,
actDataTransfer = 101,
actFileTransfer = 101,
actRealise = 102,
actCopyPaths = 103,
actBuilds = 104,

4
src/nix-prefetch-url/nix-prefetch-url.cc
View file

@ -180,9 +180,9 @@ static int _main(int argc, char * * argv)
FdSink sink(fd.get());
DataTransferRequest req(actualUri);
FileTransferRequest req(actualUri);
req.decompress = false;
getDataTransfer()->download(std::move(req), sink);
getFileTransfer()->download(std::move(req), sink);
}
/* Optionally unpack the file. */

8
src/nix/main.cc
View file

@ -176,10 +176,10 @@ void mainWrapped(int argc, char * * argv)
settings.useSubstitutes = false;
if (!settings.tarballTtl.overriden)
settings.tarballTtl = std::numeric_limits<unsigned int>::max();
if (!dataTransferSettings.tries.overriden)
dataTransferSettings.tries = 0;
if (!dataTransferSettings.connectTimeout.overriden)
dataTransferSettings.connectTimeout = 1;
if (!fileTransferSettings.tries.overriden)
fileTransferSettings.tries = 0;
if (!fileTransferSettings.connectTimeout.overriden)
fileTransferSettings.connectTimeout = 1;
}
if (args.refresh)

6
src/nix/progress-bar.cc
View file

@ -190,8 +190,8 @@ public:
i->s = fmt("querying " ANSI_BOLD "%s" ANSI_NORMAL " on %s", name, getS(fields, 1));
}
if ((type == actDataTransfer && hasAncestor(*state, actCopyPath, parent))
|| (type == actDataTransfer && hasAncestor(*state, actQueryPathInfo, parent))
if ((type == actFileTransfer && hasAncestor(*state, actCopyPath, parent))
|| (type == actFileTransfer && hasAncestor(*state, actQueryPathInfo, parent))
|| (type == actCopyPath && hasAncestor(*state, actSubstitute, parent)))
i->visible = false;
@ -416,7 +416,7 @@ public:
if (!s2.empty()) { res += " ("; res += s2; res += ')'; }
}
showActivity(actDataTransfer, "%s MiB DL", "%.1f", MiB);
showActivity(actFileTransfer, "%s MiB DL", "%.1f", MiB);
{
auto s = renderActivity(actOptimiseStore, "%s paths optimised");

4
src/nix/upgrade-nix.cc
View file

@ -138,8 +138,8 @@ struct CmdUpgradeNix : MixDryRun, StoreCommand
Activity act(*logger, lvlInfo, actUnknown, "querying latest Nix version");
// FIXME: use nixos.org?
auto req = DataTransferRequest(storePathsUrl);
auto res = getDataTransfer()->download(req);
auto req = FileTransferRequest(storePathsUrl);
auto res = getFileTransfer()->download(req);
auto state = std::make_unique<EvalState>(Strings(), store);
auto v = state->allocValue();