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f36006cdf4
Move this directory and shorten the pdfium::base nested namespace to namespace pdfium. Bug: pdfium:2127 Change-Id: Ie65bc4c3e69e672ff04e2af0218b6f9fc1584d03 Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/116671 Reviewed-by: Thomas Sepez <tsepez@google.com> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
// Copyright 2019 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "testing/utils/file_util.h"
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#include <stdio.h>
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#include <utility>
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#include <vector>
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#include "core/fxcrt/numerics/safe_conversions.h"
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#include "core/fxcrt/span_util.h"
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#include "testing/utils/path_service.h"
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std::vector<uint8_t> GetFileContents(const char* filename) {
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FILE* file = fopen(filename, "rb");
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if (!file) {
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fprintf(stderr, "Failed to open: %s\n", filename);
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return {};
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}
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(void)fseek(file, 0, SEEK_END);
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size_t file_length = ftell(file);
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if (!file_length) {
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return {};
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}
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(void)fseek(file, 0, SEEK_SET);
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std::vector<uint8_t> buffer(file_length);
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size_t bytes_read = fread(buffer.data(), 1, file_length, file);
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(void)fclose(file);
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if (bytes_read != file_length) {
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fprintf(stderr, "Failed to read: %s\n", filename);
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return {};
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}
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return buffer;
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}
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FileAccessForTesting::FileAccessForTesting(const std::string& file_name) {
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std::string file_path = PathService::GetTestFilePath(file_name);
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if (file_path.empty()) {
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return;
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}
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file_contents_ = GetFileContents(file_path.c_str());
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if (file_contents_.empty()) {
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return;
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}
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m_FileLen = pdfium::checked_cast<unsigned long>(file_contents_.size());
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m_GetBlock = SGetBlock;
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m_Param = this;
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}
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int FileAccessForTesting::GetBlockImpl(unsigned long pos,
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unsigned char* pBuf,
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unsigned long size) {
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fxcrt::spancpy(pdfium::make_span(pBuf, size),
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pdfium::make_span(file_contents_).subspan(pos, size));
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return size ? 1 : 0;
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}
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// static
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int FileAccessForTesting::SGetBlock(void* param,
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unsigned long pos,
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unsigned char* pBuf,
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unsigned long size) {
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auto* file_access = static_cast<FileAccessForTesting*>(param);
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return file_access->GetBlockImpl(pos, pBuf, size);
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}
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