apollo::localization::msf::FileUtility类 参考

#include <file_utility.h>

apollo::localization::msf::FileUtility 的协作图:

静态 Public 成员函数
static void	ComputeFileMd5 (const std::string &file_path, unsigned char res[kUcharMd5Length])
	Compute file md5 given a file path.
static void	ComputeFileMd5 (const std::string &file_path, char res[kCharMd5Lenth])
static void	ComputeBinaryMd5 (const unsigned char *binary, size_t size, unsigned char res[kUcharMd5Length])
	Compute file md5 given a binary chunk.
static void	ComputeBinaryMd5 (const unsigned char *binary, size_t size, char res[kCharMd5Lenth])

静态 Public 属性
static const size_t	kUcharMd5Length = 16
static const size_t	kCharMd5Lenth = 33

详细描述

在文件 file_utility.h 第 35 行定义.

成员函数说明

ComputeBinaryMd5() [1/2]

void apollo::localization::msf::FileUtility::ComputeBinaryMd5 ( const unsigned char *  binary, size_t  size, char  res[kCharMd5Lenth]  )

static

在文件 file_utility.cc 第 107 行定义.

                                                            {
  unsigned char md[kUcharMd5Length] = {"\0"};
  char buf[kCharMd5Lenth] = {'\0'};
  char tmp[3] = {'\0'};
 
  ComputeBinaryMd5(binary, size, md);
 
  for (unsigned int i = 0; i < kUcharMd5Length; i++) {
    snprintf(tmp, sizeof(tmp), "%02X", md[i]);
    strncat(buf, tmp, sizeof(tmp));
  }
 
  memcpy(res, buf, sizeof(buf));
}

ComputeBinaryMd5() [2/2]

void apollo::localization::msf::FileUtility::ComputeBinaryMd5 ( const unsigned char *  binary, size_t  size, unsigned char  res[kUcharMd5Length]  )

static

Compute file md5 given a binary chunk.

在文件 file_utility.cc 第 96 行定义.

                                                                       {
  MD5 md5;
  md5.init();
  md5.update(binary, static_cast<unsigned int>(size));
  md5.finalize();
  for (uint8_t i = 0; i < kUcharMd5Length; ++i) {
    res[i] = md5.digest[i];
  }
}

ComputeFileMd5() [1/2]

void apollo::localization::msf::FileUtility::ComputeFileMd5 ( const std::string &  file_path, char  res[kCharMd5Lenth]  )

static

在文件 file_utility.cc 第 67 行定义.

                                                          {
  std::vector<unsigned char> buf(kBufferSize);
  unsigned char *buf_pt = &buf[0];
 
  FILE *file = fopen(file_path.c_str(), "rb");
  size_t total_size = 0;
  if (file) {
    int count = 1;
    while (!feof(file)) {
      if (count > 1) {
        buf.resize(kBufferSize * count);
        buf_pt = &buf[count - 1];
      }
 
      size_t size = fread(buf_pt, sizeof(unsigned char), kBufferSize, file);
      total_size += size;
 
      ++count;
    }
  } else {
    AERROR << "Can't find the file: " << file_path;
    return;
  }
 
  ComputeBinaryMd5(&buf[0], total_size, res);
  fclose(file);
}

ComputeFileMd5() [2/2]

void apollo::localization::msf::FileUtility::ComputeFileMd5 ( const std::string &  file_path, unsigned char  res[kUcharMd5Length]  )

static

Compute file md5 given a file path.

在文件 file_utility.cc 第 38 行定义.

                                                                     {
  std::vector<unsigned char> buf(kBufferSize);
  unsigned char *buf_pt = &buf[0];
 
  FILE *file = fopen(file_path.c_str(), "rb");
  size_t total_size = 0;
  if (file) {
    int count = 1;
    while (!feof(file)) {
      if (count > 1) {
        buf.resize(kBufferSize * count);
        buf_pt = &buf[count - 1];
      }
 
      size_t size = fread(buf_pt, sizeof(unsigned char), kBufferSize, file);
      total_size += size;
 
      ++count;
    }
  } else {
    AERROR << "Can't find the file: " << file_path;
    return;
  }
 
  ComputeBinaryMd5(&buf[0], total_size, res);
  fclose(file);
}

类成员变量说明

kCharMd5Lenth

const size_t apollo::localization::msf::FileUtility::kCharMd5Lenth = 33

static

在文件 file_utility.h 第 38 行定义.

kUcharMd5Length

const size_t apollo::localization::msf::FileUtility::kUcharMd5Length = 16

static

在文件 file_utility.h 第 37 行定义.

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该类的文档由以下文件生成:

• modules/localization/msf/common/util/file_utility.h
• modules/localization/msf/common/util/file_utility.cc