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9cfd2c515e
'util' builds on Windows after this. R=mark@chromium.org, rsesek@chromium.org BUG=crashpad:1 Review URL: https://codereview.chromium.org/791493007
115 lines
3.3 KiB
C++
115 lines
3.3 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
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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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#include "util/net/http_body.h"
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#include <string.h>
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#include <algorithm>
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#include <limits>
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#include "base/logging.h"
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#include "base/stl_util.h"
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namespace crashpad {
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StringHTTPBodyStream::StringHTTPBodyStream(const std::string& string)
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: HTTPBodyStream(), string_(string), bytes_read_() {
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}
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StringHTTPBodyStream::~StringHTTPBodyStream() {
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}
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ssize_t StringHTTPBodyStream::GetBytesBuffer(uint8_t* buffer, size_t max_len) {
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size_t num_bytes_remaining = string_.length() - bytes_read_;
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if (num_bytes_remaining == 0) {
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return num_bytes_remaining;
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}
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size_t num_bytes_returned =
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std::min(std::min(num_bytes_remaining, max_len),
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implicit_cast<size_t>(std::numeric_limits<ssize_t>::max()));
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memcpy(buffer, &string_[bytes_read_], num_bytes_returned);
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bytes_read_ += num_bytes_returned;
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return num_bytes_returned;
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}
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FileHTTPBodyStream::FileHTTPBodyStream(const base::FilePath& path)
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: HTTPBodyStream(), path_(path), file_(), file_state_(kUnopenedFile) {
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}
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FileHTTPBodyStream::~FileHTTPBodyStream() {
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}
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ssize_t FileHTTPBodyStream::GetBytesBuffer(uint8_t* buffer, size_t max_len) {
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switch (file_state_) {
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case kUnopenedFile:
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file_.reset(LoggingOpenFileForRead(path_));
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if (!file_.is_valid()) {
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file_state_ = kFileOpenError;
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return -1;
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}
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file_state_ = kReading;
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break;
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case kFileOpenError:
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return -1;
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case kClosedAtEOF:
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return 0;
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case kReading:
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break;
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}
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ssize_t rv = ReadFile(file_.get(), buffer, max_len);
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if (rv == 0) {
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file_.reset();
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file_state_ = kClosedAtEOF;
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} else if (rv < 0) {
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PLOG(ERROR) << "read";
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}
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return rv;
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}
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CompositeHTTPBodyStream::CompositeHTTPBodyStream(
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const CompositeHTTPBodyStream::PartsList& parts)
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: HTTPBodyStream(), parts_(parts), current_part_(parts_.begin()) {
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}
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CompositeHTTPBodyStream::~CompositeHTTPBodyStream() {
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STLDeleteContainerPointers(parts_.begin(), parts_.end());
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}
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ssize_t CompositeHTTPBodyStream::GetBytesBuffer(uint8_t* buffer,
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size_t buffer_len) {
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ssize_t max_len = std::min(
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buffer_len, implicit_cast<size_t>(std::numeric_limits<ssize_t>::max()));
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ssize_t bytes_copied = 0;
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while (bytes_copied < max_len && current_part_ != parts_.end()) {
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ssize_t this_read = (*current_part_)->GetBytesBuffer(
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buffer + bytes_copied, max_len - bytes_copied);
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if (this_read == 0) {
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// If the current part has returned 0 indicating EOF, advance the current
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// part and try again.
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++current_part_;
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} else if (this_read < 0) {
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return this_read;
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}
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bytes_copied += this_read;
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}
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return bytes_copied;
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}
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} // namespace crashpad
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