106 lines
2.2 KiB
C++
106 lines
2.2 KiB
C++
/*
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* Copyright (C) 2017-2019 Intel Corporation
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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#include "file_io.h"
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#include "runtime/helpers/debug_helpers.h"
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#include "runtime/helpers/stdio.h"
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#include <cstring>
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#include <new>
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size_t loadDataFromFile(
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const char *filename,
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void *&pData) {
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FILE *fp = nullptr;
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size_t nsize = 0;
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DEBUG_BREAK_IF(nullptr == filename);
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// Open the file
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fopen_s(&fp, filename, "rb");
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if (fp) {
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// Allocate a buffer for the file contents
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fseek(fp, 0, SEEK_END);
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nsize = (size_t)ftell(fp);
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fseek(fp, 0, SEEK_SET);
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pData = new (std::nothrow) char[nsize + 1];
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if (pData) {
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// we initialize to all zeroes before reading in data
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memset(pData, 0x00, nsize + 1);
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auto read = fread(pData, sizeof(unsigned char), nsize, fp);
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DEBUG_BREAK_IF(read != nsize);
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((void)(read));
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} else {
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nsize = 0;
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}
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fclose(fp);
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}
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return nsize;
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}
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void deleteDataReadFromFile(void *&pData) {
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delete[](char *) pData;
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pData = nullptr;
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}
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size_t writeDataToFile(
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const char *filename,
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const void *pData,
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size_t dataSize) {
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FILE *fp = nullptr;
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size_t nsize = 0;
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DEBUG_BREAK_IF(nullptr == pData);
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DEBUG_BREAK_IF(nullptr == filename);
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fopen_s(&fp, filename, "wb");
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if (fp) {
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if (fwrite(pData, sizeof(unsigned char), dataSize, fp) == 0) {
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fclose(fp);
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} else {
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fclose(fp);
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}
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nsize = dataSize;
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}
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return nsize;
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}
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bool fileExists(const std::string &fileName) {
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FILE *pFile = nullptr;
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DEBUG_BREAK_IF(fileName.empty());
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DEBUG_BREAK_IF(fileName == "");
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fopen_s(&pFile, fileName.c_str(), "rb");
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if (pFile) {
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fclose(pFile);
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}
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return pFile != nullptr;
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}
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bool fileExistsHasSize(const std::string &fileName) {
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FILE *pFile = nullptr;
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size_t nsize = 0;
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DEBUG_BREAK_IF(fileName.empty());
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DEBUG_BREAK_IF(fileName == "");
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fopen_s(&pFile, fileName.c_str(), "rb");
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if (pFile) {
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fseek(pFile, 0, SEEK_END);
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nsize = (size_t)ftell(pFile);
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fclose(pFile);
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}
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return pFile != nullptr && nsize > 0;
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}
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