| /* |
| * Copyright (C) 2012 Igalia S.L. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "WebKitSoupRequestInputStream.h" |
| |
| #include <wtf/OwnPtr.h> |
| #include <wtf/PassOwnPtr.h> |
| #include <wtf/Threading.h> |
| #include <wtf/gobject/GRefPtr.h> |
| |
| struct AsyncReadData { |
| AsyncReadData(GSimpleAsyncResult* result, void* buffer, gsize count, GCancellable* cancellable) |
| : result(result) |
| , buffer(buffer) |
| , count(count) |
| , cancellable(cancellable) |
| { |
| } |
| |
| GRefPtr<GSimpleAsyncResult> result; |
| void* buffer; |
| size_t count; |
| GRefPtr<GCancellable> cancellable; |
| }; |
| |
| struct _WebKitSoupRequestInputStreamPrivate { |
| uint64_t contentLength; |
| uint64_t bytesReceived; |
| uint64_t bytesRead; |
| |
| Mutex readLock; |
| OwnPtr<AsyncReadData> pendingAsyncRead; |
| }; |
| |
| G_DEFINE_TYPE(WebKitSoupRequestInputStream, webkit_soup_request_input_stream, G_TYPE_MEMORY_INPUT_STREAM) |
| |
| static void webkitSoupRequestInputStreamReadAsyncResultComplete(WebKitSoupRequestInputStream* stream, GSimpleAsyncResult* result, void* buffer, gsize count, GCancellable* cancellable) |
| { |
| GError* error = 0; |
| gssize bytesRead = G_INPUT_STREAM_GET_CLASS(stream)->read_fn(G_INPUT_STREAM(stream), buffer, count, cancellable, &error); |
| if (!error) { |
| g_simple_async_result_set_op_res_gssize(result, bytesRead); |
| stream->priv->bytesRead += bytesRead; |
| } else |
| g_simple_async_result_take_error(result, error); |
| g_simple_async_result_complete_in_idle(result); |
| } |
| |
| static void webkitSoupRequestInputStreamPendingReadAsyncComplete(WebKitSoupRequestInputStream* stream) |
| { |
| if (!stream->priv->pendingAsyncRead) |
| return; |
| |
| AsyncReadData* data = stream->priv->pendingAsyncRead.get(); |
| webkitSoupRequestInputStreamReadAsyncResultComplete(stream, data->result.get(), data->buffer, data->count, data->cancellable.get()); |
| stream->priv->pendingAsyncRead.clear(); |
| } |
| |
| static bool webkitSoupRequestInputStreamHasDataToRead(WebKitSoupRequestInputStream* stream) |
| { |
| return stream->priv->bytesRead < stream->priv->bytesReceived; |
| } |
| |
| static bool webkitSoupRequestInputStreamIsWaitingForData(WebKitSoupRequestInputStream* stream) |
| { |
| return !stream->priv->contentLength || stream->priv->bytesReceived < stream->priv->contentLength; |
| } |
| |
| static void webkitSoupRequestInputStreamReadAsync(GInputStream* inputStream, void* buffer, gsize count, int /*priority*/, GCancellable* cancellable, GAsyncReadyCallback callback, gpointer userData) |
| { |
| WebKitSoupRequestInputStream* stream = WEBKIT_SOUP_REQUEST_INPUT_STREAM(inputStream); |
| GRefPtr<GSimpleAsyncResult> result = adoptGRef(g_simple_async_result_new(G_OBJECT(stream), callback, userData, reinterpret_cast<void*>(webkitSoupRequestInputStreamReadAsync))); |
| |
| MutexLocker locker(stream->priv->readLock); |
| |
| if (!webkitSoupRequestInputStreamHasDataToRead(stream) && !webkitSoupRequestInputStreamIsWaitingForData(stream)) { |
| g_simple_async_result_set_op_res_gssize(result.get(), 0); |
| g_simple_async_result_complete_in_idle(result.get()); |
| return; |
| } |
| |
| if (webkitSoupRequestInputStreamHasDataToRead(stream)) { |
| webkitSoupRequestInputStreamReadAsyncResultComplete(stream, result.get(), buffer, count, cancellable); |
| return; |
| } |
| |
| stream->priv->pendingAsyncRead = adoptPtr(new AsyncReadData(result.get(), buffer, count, cancellable)); |
| } |
| |
| static gssize webkitSoupRequestInputStreamReadFinish(GInputStream*, GAsyncResult* result, GError**) |
| { |
| GSimpleAsyncResult* simpleResult = G_SIMPLE_ASYNC_RESULT(result); |
| g_warn_if_fail(g_simple_async_result_get_source_tag(simpleResult) == webkitSoupRequestInputStreamReadAsync); |
| |
| return g_simple_async_result_get_op_res_gssize(simpleResult); |
| } |
| |
| static void webkitSoupRequestInputStreamFinalize(GObject* object) |
| { |
| WEBKIT_SOUP_REQUEST_INPUT_STREAM(object)->priv->~WebKitSoupRequestInputStreamPrivate(); |
| G_OBJECT_CLASS(webkit_soup_request_input_stream_parent_class)->finalize(object); |
| } |
| |
| static void webkit_soup_request_input_stream_init(WebKitSoupRequestInputStream* stream) |
| { |
| WebKitSoupRequestInputStreamPrivate* priv = G_TYPE_INSTANCE_GET_PRIVATE(stream, WEBKIT_TYPE_SOUP_REQUEST_INPUT_STREAM, WebKitSoupRequestInputStreamPrivate); |
| stream->priv = priv; |
| new (priv) WebKitSoupRequestInputStreamPrivate(); |
| } |
| |
| static void webkit_soup_request_input_stream_class_init(WebKitSoupRequestInputStreamClass* requestStreamClass) |
| { |
| GObjectClass* gObjectClass = G_OBJECT_CLASS(requestStreamClass); |
| gObjectClass->finalize = webkitSoupRequestInputStreamFinalize; |
| |
| GInputStreamClass* inputStreamClass = G_INPUT_STREAM_CLASS(requestStreamClass); |
| inputStreamClass->read_async = webkitSoupRequestInputStreamReadAsync; |
| inputStreamClass->read_finish = webkitSoupRequestInputStreamReadFinish; |
| |
| g_type_class_add_private(requestStreamClass, sizeof(WebKitSoupRequestInputStreamPrivate)); |
| } |
| |
| GInputStream* webkitSoupRequestInputStreamNew(uint64_t contentLength) |
| { |
| WebKitSoupRequestInputStream* stream = WEBKIT_SOUP_REQUEST_INPUT_STREAM(g_object_new(WEBKIT_TYPE_SOUP_REQUEST_INPUT_STREAM, NULL)); |
| stream->priv->contentLength = contentLength; |
| return G_INPUT_STREAM(stream); |
| } |
| |
| void webkitSoupRequestInputStreamAddData(WebKitSoupRequestInputStream* stream, const void* data, size_t dataLength) |
| { |
| if (webkitSoupRequestInputStreamFinished(stream)) |
| return; |
| |
| MutexLocker locker(stream->priv->readLock); |
| |
| if (dataLength) { |
| // Truncate the dataLength to the contentLength if it's known. |
| if (stream->priv->contentLength && stream->priv->bytesReceived + dataLength > stream->priv->contentLength) |
| dataLength = stream->priv->contentLength - stream->priv->bytesReceived; |
| stream->priv->bytesReceived += dataLength; |
| g_memory_input_stream_add_data(G_MEMORY_INPUT_STREAM(stream), g_memdup(data, dataLength), dataLength, g_free); |
| } else { |
| // We have received all the data, set contentLength to bytesReceived to indicate we have finished. |
| stream->priv->contentLength = stream->priv->bytesReceived; |
| // If there's a pending read to complete, read_fn will return 0 because we haven't added more data to the |
| // memory input stream. And if there isn't a pending read, the next call to read_async will return 0 too, because |
| // webkitSoupRequestInputStreamFinished() is now TRUE. |
| } |
| |
| webkitSoupRequestInputStreamPendingReadAsyncComplete(stream); |
| } |
| |
| bool webkitSoupRequestInputStreamFinished(WebKitSoupRequestInputStream* stream) |
| { |
| return !webkitSoupRequestInputStreamIsWaitingForData(stream); |
| } |