mirror of
				https://github.com/ton-blockchain/ton
				synced 2025-03-09 15:40:10 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			634 lines
		
	
	
	
		
			17 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			634 lines
		
	
	
	
		
			17 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
 | 
						|
    This file is part of TON Blockchain Library.
 | 
						|
 | 
						|
    TON Blockchain Library is free software: you can redistribute it and/or modify
 | 
						|
    it under the terms of the GNU Lesser General Public License as published by
 | 
						|
    the Free Software Foundation, either version 2 of the License, or
 | 
						|
    (at your option) any later version.
 | 
						|
 | 
						|
    TON Blockchain 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 Lesser General Public License for more details.
 | 
						|
 | 
						|
    You should have received a copy of the GNU Lesser General Public License
 | 
						|
    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
 | 
						|
 | 
						|
    Copyright 2017-2020 Telegram Systems LLP
 | 
						|
*/
 | 
						|
#include "td/utils/port/path.h"
 | 
						|
 | 
						|
#include "td/utils/port/config.h"
 | 
						|
 | 
						|
#include "td/utils/format.h"
 | 
						|
#include "td/utils/logging.h"
 | 
						|
#include "td/utils/port/detail/skip_eintr.h"
 | 
						|
#include "td/utils/ScopeGuard.h"
 | 
						|
 | 
						|
#if TD_PORT_WINDOWS
 | 
						|
#include "td/utils/port/wstring_convert.h"
 | 
						|
#include "td/utils/Random.h"
 | 
						|
#endif
 | 
						|
 | 
						|
#if TD_PORT_POSIX
 | 
						|
 | 
						|
#include <dirent.h>
 | 
						|
#include <limits.h>
 | 
						|
#include <stdio.h>
 | 
						|
 | 
						|
// We don't want warnings from system headers
 | 
						|
#if TD_GCC
 | 
						|
#pragma GCC diagnostic push
 | 
						|
#pragma GCC diagnostic ignored "-Wconversion"
 | 
						|
#endif
 | 
						|
#include <sys/stat.h>
 | 
						|
#if TD_GCC
 | 
						|
#pragma GCC diagnostic pop
 | 
						|
#endif
 | 
						|
 | 
						|
#include <sys/types.h>
 | 
						|
#include <unistd.h>
 | 
						|
 | 
						|
#endif
 | 
						|
 | 
						|
#if TD_DARWIN
 | 
						|
#include <sys/syslimits.h>
 | 
						|
#endif
 | 
						|
 | 
						|
#include <cerrno>
 | 
						|
#include <cstdlib>
 | 
						|
#include <string>
 | 
						|
 | 
						|
namespace td {
 | 
						|
 | 
						|
static string temporary_dir;
 | 
						|
 | 
						|
Status set_temporary_dir(CSlice dir) {
 | 
						|
  string input_dir = dir.str();
 | 
						|
  if (!dir.empty() && dir.back() != TD_DIR_SLASH) {
 | 
						|
    input_dir += TD_DIR_SLASH;
 | 
						|
  }
 | 
						|
  TRY_STATUS(mkpath(input_dir, 0750));
 | 
						|
  TRY_RESULT_ASSIGN(temporary_dir, realpath(input_dir));
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Status mkpath(CSlice path, int32 mode) {
 | 
						|
  Status first_error = Status::OK();
 | 
						|
  Status last_error = Status::OK();
 | 
						|
  for (size_t i = 1; i < path.size(); i++) {
 | 
						|
    if (path[i] == TD_DIR_SLASH) {
 | 
						|
      last_error = mkdir(PSLICE() << path.substr(0, i), mode);
 | 
						|
      if (last_error.is_error() && first_error.is_ok()) {
 | 
						|
        first_error = last_error.clone();
 | 
						|
      }
 | 
						|
    }
 | 
						|
  }
 | 
						|
  if (last_error.is_error()) {
 | 
						|
    return first_error;
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Status rmrf(CSlice path) {
 | 
						|
  return walk_path(path, [](CSlice path, WalkPath::Type type) {
 | 
						|
    switch (type) {
 | 
						|
      case WalkPath::Type::EnterDir:
 | 
						|
        break;
 | 
						|
      case WalkPath::Type::ExitDir:
 | 
						|
        rmdir(path).ignore();
 | 
						|
        break;
 | 
						|
      case WalkPath::Type::NotDir:
 | 
						|
        unlink(path).ignore();
 | 
						|
        break;
 | 
						|
    }
 | 
						|
  });
 | 
						|
}
 | 
						|
 | 
						|
#if TD_PORT_POSIX
 | 
						|
 | 
						|
Status mkdir(CSlice dir, int32 mode) {
 | 
						|
  int mkdir_res = [&] {
 | 
						|
    int res;
 | 
						|
    do {
 | 
						|
      errno = 0;  // just in case
 | 
						|
      res = ::mkdir(dir.c_str(), static_cast<mode_t>(mode));
 | 
						|
    } while (res < 0 && (errno == EINTR || errno == EAGAIN));
 | 
						|
    return res;
 | 
						|
  }();
 | 
						|
  if (mkdir_res == 0) {
 | 
						|
    return Status::OK();
 | 
						|
  }
 | 
						|
  auto mkdir_errno = errno;
 | 
						|
  if (mkdir_errno == EEXIST) {
 | 
						|
    // TODO check that it is a directory
 | 
						|
    return Status::OK();
 | 
						|
  }
 | 
						|
  return Status::PosixError(mkdir_errno, PSLICE() << "Can't create directory \"" << dir << '"');
 | 
						|
}
 | 
						|
 | 
						|
Status rename(CSlice from, CSlice to) {
 | 
						|
  int rename_res = detail::skip_eintr([&] { return ::rename(from.c_str(), to.c_str()); });
 | 
						|
  if (rename_res < 0) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't rename \"" << from << "\" to \"" << to << '\"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Result<string> realpath(CSlice slice, bool ignore_access_denied) {
 | 
						|
  char full_path[PATH_MAX + 1];
 | 
						|
  string res;
 | 
						|
  char *err = detail::skip_eintr_cstr([&] { return ::realpath(slice.c_str(), full_path); });
 | 
						|
  if (err != full_path) {
 | 
						|
    if (ignore_access_denied && (errno == EACCES || errno == EPERM)) {
 | 
						|
      res = slice.str();
 | 
						|
    } else {
 | 
						|
      return OS_ERROR(PSLICE() << "Realpath failed for \"" << slice << '"');
 | 
						|
    }
 | 
						|
  } else {
 | 
						|
    res = full_path;
 | 
						|
  }
 | 
						|
  if (res.empty()) {
 | 
						|
    return Status::Error("Empty path");
 | 
						|
  }
 | 
						|
  if (!slice.empty() && slice.end()[-1] == TD_DIR_SLASH) {
 | 
						|
    if (res.back() != TD_DIR_SLASH) {
 | 
						|
      res += TD_DIR_SLASH;
 | 
						|
    }
 | 
						|
  }
 | 
						|
  return res;
 | 
						|
}
 | 
						|
 | 
						|
Status chdir(CSlice dir) {
 | 
						|
  int chdir_res = detail::skip_eintr([&] { return ::chdir(dir.c_str()); });
 | 
						|
  if (chdir_res) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't change directory to \"" << dir << '"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Status rmdir(CSlice dir) {
 | 
						|
  int rmdir_res = detail::skip_eintr([&] { return ::rmdir(dir.c_str()); });
 | 
						|
  if (rmdir_res) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't delete directory \"" << dir << '"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Status unlink(CSlice path) {
 | 
						|
  int unlink_res = detail::skip_eintr([&] { return ::unlink(path.c_str()); });
 | 
						|
  if (unlink_res) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't unlink \"" << path << '"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
CSlice get_temporary_dir() {
 | 
						|
  static bool is_inited = [] {
 | 
						|
    if (temporary_dir.empty()) {
 | 
						|
      const char *s = std::getenv("TMPDIR");
 | 
						|
      if (s != nullptr && s[0] != '\0') {
 | 
						|
        temporary_dir = s;
 | 
						|
      } else if (P_tmpdir != nullptr && P_tmpdir[0] != '\0') {
 | 
						|
        temporary_dir = P_tmpdir;
 | 
						|
      } else {
 | 
						|
        return false;
 | 
						|
      }
 | 
						|
    }
 | 
						|
    if (temporary_dir.size() > 1 && temporary_dir.back() == TD_DIR_SLASH) {
 | 
						|
      temporary_dir.pop_back();
 | 
						|
    }
 | 
						|
    return true;
 | 
						|
  }();
 | 
						|
  LOG_IF(FATAL, !is_inited) << "Can't find temporary directory";
 | 
						|
  return temporary_dir;
 | 
						|
}
 | 
						|
 | 
						|
Result<std::pair<FileFd, string>> mkstemp(CSlice dir) {
 | 
						|
  if (dir.empty()) {
 | 
						|
    dir = get_temporary_dir();
 | 
						|
    if (dir.empty()) {
 | 
						|
      return Status::Error("Can't find temporary directory");
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  TRY_RESULT(dir_real, realpath(dir));
 | 
						|
  CHECK(!dir_real.empty());
 | 
						|
 | 
						|
  string file_pattern;
 | 
						|
  file_pattern.reserve(dir_real.size() + 14);
 | 
						|
  file_pattern = dir_real;
 | 
						|
  if (file_pattern.back() != TD_DIR_SLASH) {
 | 
						|
    file_pattern += TD_DIR_SLASH;
 | 
						|
  }
 | 
						|
  file_pattern += "tmpXXXXXXXXXX";
 | 
						|
 | 
						|
  int fd = detail::skip_eintr([&] { return ::mkstemp(&file_pattern[0]); });
 | 
						|
  if (fd == -1) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't create temporary file \"" << file_pattern << '"');
 | 
						|
  }
 | 
						|
  if (close(fd)) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't close temporary file \"" << file_pattern << '"');
 | 
						|
  }
 | 
						|
  // TODO create file from fd
 | 
						|
  TRY_RESULT(file, FileFd::open(file_pattern, FileFd::Write | FileFd::Truncate | FileFd::Append));
 | 
						|
  return std::make_pair(std::move(file), std::move(file_pattern));
 | 
						|
}
 | 
						|
 | 
						|
Result<string> mkdtemp(CSlice dir, Slice prefix) {
 | 
						|
  if (dir.empty()) {
 | 
						|
    dir = get_temporary_dir();
 | 
						|
    if (dir.empty()) {
 | 
						|
      return Status::Error("Can't find temporary directory");
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  TRY_RESULT(dir_real, realpath(dir));
 | 
						|
  CHECK(!dir_real.empty());
 | 
						|
 | 
						|
  string dir_pattern;
 | 
						|
  dir_pattern.reserve(dir_real.size() + prefix.size() + 7);
 | 
						|
  dir_pattern = dir_real;
 | 
						|
  if (dir_pattern.back() != TD_DIR_SLASH) {
 | 
						|
    dir_pattern += TD_DIR_SLASH;
 | 
						|
  }
 | 
						|
  dir_pattern.append(prefix.begin(), prefix.size());
 | 
						|
  dir_pattern += "XXXXXX";
 | 
						|
 | 
						|
  char *result = detail::skip_eintr_cstr([&] { return ::mkdtemp(&dir_pattern[0]); });
 | 
						|
  if (result == nullptr) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't create temporary directory \"" << dir_pattern << '"');
 | 
						|
  }
 | 
						|
  return result;
 | 
						|
}
 | 
						|
 | 
						|
namespace detail {
 | 
						|
using WalkFunction = std::function<WalkPath::Action(CSlice name, WalkPath::Type type)>;
 | 
						|
Result<bool> walk_path_dir(string &path, FileFd fd, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
 | 
						|
 | 
						|
Result<bool> walk_path_dir(string &path, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
 | 
						|
 | 
						|
Result<bool> walk_path_file(string &path, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
 | 
						|
 | 
						|
Result<bool> walk_path(string &path, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
 | 
						|
 | 
						|
Result<bool> walk_path_subdir(string &path, DIR *dir, const WalkFunction &func) {
 | 
						|
  while (true) {
 | 
						|
    errno = 0;
 | 
						|
    auto *entry = readdir(dir);
 | 
						|
    auto readdir_errno = errno;
 | 
						|
    if (readdir_errno) {
 | 
						|
      return Status::PosixError(readdir_errno, "readdir");
 | 
						|
    }
 | 
						|
    if (entry == nullptr) {
 | 
						|
      return true;
 | 
						|
    }
 | 
						|
    Slice name = Slice(static_cast<const char *>(entry->d_name));
 | 
						|
    if (name == "." || name == "..") {
 | 
						|
      continue;
 | 
						|
    }
 | 
						|
    auto size = path.size();
 | 
						|
    if (path.back() != TD_DIR_SLASH) {
 | 
						|
      path += TD_DIR_SLASH;
 | 
						|
    }
 | 
						|
    path.append(name.begin(), name.size());
 | 
						|
    SCOPE_EXIT {
 | 
						|
      path.resize(size);
 | 
						|
    };
 | 
						|
    Result<bool> status = true;
 | 
						|
#ifdef DT_DIR
 | 
						|
    if (entry->d_type == DT_UNKNOWN) {
 | 
						|
      status = walk_path(path, func);
 | 
						|
    } else if (entry->d_type == DT_DIR) {
 | 
						|
      status = walk_path_dir(path, func);
 | 
						|
    } else if (entry->d_type == DT_REG) {
 | 
						|
      status = walk_path_file(path, func);
 | 
						|
    }
 | 
						|
#else
 | 
						|
#warning "Slow walk_path"
 | 
						|
    status = walk_path(path, func);
 | 
						|
#endif
 | 
						|
    if (status.is_error() || !status.ok()) {
 | 
						|
      return status;
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
Result<bool> walk_path_dir(string &path, DIR *subdir, const WalkFunction &func) {
 | 
						|
  SCOPE_EXIT {
 | 
						|
    closedir(subdir);
 | 
						|
  };
 | 
						|
  switch (func(path, WalkPath::Type::EnterDir)) {
 | 
						|
    case WalkPath::Action::Abort:
 | 
						|
      return false;
 | 
						|
    case WalkPath::Action::SkipDir:
 | 
						|
      return true;
 | 
						|
    case WalkPath::Action::Continue:
 | 
						|
      break;
 | 
						|
  }
 | 
						|
  auto status = walk_path_subdir(path, subdir, func);
 | 
						|
  if (status.is_error() || !status.ok()) {
 | 
						|
    return status;
 | 
						|
  }
 | 
						|
  switch (func(path, WalkPath::Type::ExitDir)) {
 | 
						|
    case WalkPath::Action::Abort:
 | 
						|
      return false;
 | 
						|
    case WalkPath::Action::SkipDir:
 | 
						|
    case WalkPath::Action::Continue:
 | 
						|
      break;
 | 
						|
  }
 | 
						|
  return true;
 | 
						|
}
 | 
						|
 | 
						|
Result<bool> walk_path_dir(string &path, FileFd fd, const WalkFunction &func) {
 | 
						|
  auto native_fd = fd.move_as_native_fd();
 | 
						|
  auto *subdir = fdopendir(native_fd.fd());
 | 
						|
  if (subdir == nullptr) {
 | 
						|
    return OS_ERROR("fdopendir");
 | 
						|
  }
 | 
						|
  native_fd.release();
 | 
						|
  return walk_path_dir(path, subdir, func);
 | 
						|
}
 | 
						|
 | 
						|
Result<bool> walk_path_dir(string &path, const WalkFunction &func) {
 | 
						|
  auto *subdir = opendir(path.c_str());
 | 
						|
  if (subdir == nullptr) {
 | 
						|
    return OS_ERROR(PSLICE() << tag("opendir", path));
 | 
						|
  }
 | 
						|
  return walk_path_dir(path, subdir, func);
 | 
						|
}
 | 
						|
 | 
						|
Result<bool> walk_path_file(string &path, const WalkFunction &func) {
 | 
						|
  switch (func(path, WalkPath::Type::NotDir)) {
 | 
						|
    case WalkPath::Action::Abort:
 | 
						|
      return false;
 | 
						|
    case WalkPath::Action::SkipDir:
 | 
						|
    case WalkPath::Action::Continue:
 | 
						|
      break;
 | 
						|
  }
 | 
						|
  return true;
 | 
						|
}
 | 
						|
 | 
						|
Result<bool> walk_path(string &path, const WalkFunction &func) {
 | 
						|
  TRY_RESULT(fd, FileFd::open(path, FileFd::Read));
 | 
						|
  TRY_RESULT(stat, fd.stat());
 | 
						|
 | 
						|
  bool is_dir = stat.is_dir_;
 | 
						|
  bool is_reg = stat.is_reg_;
 | 
						|
  if (is_dir) {
 | 
						|
    return walk_path_dir(path, std::move(fd), func);
 | 
						|
  }
 | 
						|
 | 
						|
  fd.close();
 | 
						|
  if (is_reg) {
 | 
						|
    return walk_path_file(path, func);
 | 
						|
  }
 | 
						|
 | 
						|
  return true;
 | 
						|
}
 | 
						|
}  // namespace detail
 | 
						|
 | 
						|
Status WalkPath::do_run(CSlice path, const detail::WalkFunction &func) {
 | 
						|
  string curr_path;
 | 
						|
  curr_path.reserve(PATH_MAX + 10);
 | 
						|
  curr_path = path.c_str();
 | 
						|
  TRY_STATUS(detail::walk_path(curr_path, func));
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
#endif
 | 
						|
 | 
						|
#if TD_PORT_WINDOWS
 | 
						|
 | 
						|
Status mkdir(CSlice dir, int32 mode) {
 | 
						|
  TRY_RESULT(wdir, to_wstring(dir));
 | 
						|
  auto status = CreateDirectoryW(wdir.c_str(), nullptr);
 | 
						|
  if (status == 0 && GetLastError() != ERROR_ALREADY_EXISTS) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't create directory \"" << dir << '"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Status rename(CSlice from, CSlice to) {
 | 
						|
  TRY_RESULT(wfrom, to_wstring(from));
 | 
						|
  TRY_RESULT(wto, to_wstring(to));
 | 
						|
  auto status = MoveFileExW(wfrom.c_str(), wto.c_str(), MOVEFILE_REPLACE_EXISTING);
 | 
						|
  if (status == 0) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't rename \"" << from << "\" to \"" << to << '\"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Result<string> realpath(CSlice slice, bool ignore_access_denied) {
 | 
						|
  wchar_t buf[MAX_PATH + 1];
 | 
						|
  TRY_RESULT(wslice, to_wstring(slice));
 | 
						|
  auto status = GetFullPathNameW(wslice.c_str(), MAX_PATH, buf, nullptr);
 | 
						|
  string res;
 | 
						|
  if (status == 0) {
 | 
						|
    if (ignore_access_denied && errno == ERROR_ACCESS_DENIED) {
 | 
						|
      res = slice.str();
 | 
						|
    } else {
 | 
						|
      return OS_ERROR(PSLICE() << "GetFullPathNameW failed for \"" << slice << '"');
 | 
						|
    }
 | 
						|
  } else {
 | 
						|
    TRY_RESULT_ASSIGN(res, from_wstring(buf));
 | 
						|
  }
 | 
						|
  if (res.empty()) {
 | 
						|
    return Status::Error("Empty path");
 | 
						|
  }
 | 
						|
  if (!slice.empty() && slice.end()[-1] == TD_DIR_SLASH) {
 | 
						|
    if (res.back() != TD_DIR_SLASH) {
 | 
						|
      res += TD_DIR_SLASH;
 | 
						|
    }
 | 
						|
  }
 | 
						|
  return res;
 | 
						|
}
 | 
						|
 | 
						|
Status chdir(CSlice dir) {
 | 
						|
  TRY_RESULT(wdir, to_wstring(dir));
 | 
						|
  auto res = SetCurrentDirectoryW(wdir.c_str());
 | 
						|
  if (res == 0) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't change directory to \"" << dir << '"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Status rmdir(CSlice dir) {
 | 
						|
  TRY_RESULT(wdir, to_wstring(dir));
 | 
						|
  int status = RemoveDirectoryW(wdir.c_str());
 | 
						|
  if (!status) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't delete directory \"" << dir << '"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
Status unlink(CSlice path) {
 | 
						|
  TRY_RESULT(wpath, to_wstring(path));
 | 
						|
  int status = DeleteFileW(wpath.c_str());
 | 
						|
  if (!status) {
 | 
						|
    return OS_ERROR(PSLICE() << "Can't unlink \"" << path << '"');
 | 
						|
  }
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
CSlice get_temporary_dir() {
 | 
						|
  static bool is_inited = [] {
 | 
						|
    if (temporary_dir.empty()) {
 | 
						|
      wchar_t buf[MAX_PATH + 1];
 | 
						|
      if (GetTempPathW(MAX_PATH, buf) == 0) {
 | 
						|
        auto error = OS_ERROR("GetTempPathW failed");
 | 
						|
        LOG(FATAL) << error;
 | 
						|
      }
 | 
						|
      auto rs = from_wstring(buf);
 | 
						|
      LOG_IF(FATAL, rs.is_error()) << "GetTempPathW failed: " << rs.error();
 | 
						|
      temporary_dir = rs.ok();
 | 
						|
    }
 | 
						|
    if (temporary_dir.size() > 1 && temporary_dir.back() == TD_DIR_SLASH) {
 | 
						|
      temporary_dir.pop_back();
 | 
						|
    }
 | 
						|
    return true;
 | 
						|
  }();
 | 
						|
  LOG_IF(FATAL, !is_inited) << "Can't find temporary directory";
 | 
						|
  return temporary_dir;
 | 
						|
}
 | 
						|
 | 
						|
Result<string> mkdtemp(CSlice dir, Slice prefix) {
 | 
						|
  if (dir.empty()) {
 | 
						|
    dir = get_temporary_dir();
 | 
						|
    if (dir.empty()) {
 | 
						|
      return Status::Error("Can't find temporary directory");
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  TRY_RESULT(dir_real, realpath(dir));
 | 
						|
  CHECK(!dir_real.empty());
 | 
						|
 | 
						|
  string dir_pattern;
 | 
						|
  dir_pattern.reserve(dir_real.size() + prefix.size() + 7);
 | 
						|
  dir_pattern = dir_real;
 | 
						|
  if (dir_pattern.back() != TD_DIR_SLASH) {
 | 
						|
    dir_pattern += TD_DIR_SLASH;
 | 
						|
  }
 | 
						|
  dir_pattern.append(prefix.begin(), prefix.size());
 | 
						|
 | 
						|
  for (auto iter = 0; iter < 20; iter++) {
 | 
						|
    auto path = dir_pattern;
 | 
						|
    for (int i = 0; i < 6 + iter / 5; i++) {
 | 
						|
      path += static_cast<char>(Random::fast('a', 'z'));
 | 
						|
    }
 | 
						|
    auto status = mkdir(path);
 | 
						|
    if (status.is_ok()) {
 | 
						|
      return path;
 | 
						|
    }
 | 
						|
  }
 | 
						|
  return Status::Error(PSLICE() << "Can't create temporary directory \"" << dir_pattern << '"');
 | 
						|
}
 | 
						|
 | 
						|
Result<std::pair<FileFd, string>> mkstemp(CSlice dir) {
 | 
						|
  if (dir.empty()) {
 | 
						|
    dir = get_temporary_dir();
 | 
						|
    if (dir.empty()) {
 | 
						|
      return Status::Error("Can't find temporary directory");
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  TRY_RESULT(dir_real, realpath(dir));
 | 
						|
  CHECK(!dir_real.empty());
 | 
						|
 | 
						|
  string file_pattern;
 | 
						|
  file_pattern.reserve(dir_real.size() + 14);
 | 
						|
  file_pattern = dir_real;
 | 
						|
  if (file_pattern.back() != TD_DIR_SLASH) {
 | 
						|
    file_pattern += TD_DIR_SLASH;
 | 
						|
  }
 | 
						|
  file_pattern += "tmp";
 | 
						|
 | 
						|
  for (auto iter = 0; iter < 20; iter++) {
 | 
						|
    auto path = file_pattern;
 | 
						|
    for (int i = 0; i < 6 + iter / 5; i++) {
 | 
						|
      path += static_cast<char>(Random::fast('a', 'z'));
 | 
						|
    }
 | 
						|
    auto r_file = FileFd::open(path, FileFd::Write | FileFd::Read | FileFd::CreateNew);
 | 
						|
    if (r_file.is_ok()) {
 | 
						|
      return std::make_pair(r_file.move_as_ok(), path);
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  return Status::Error(PSLICE() << "Can't create temporary file \"" << file_pattern << '"');
 | 
						|
}
 | 
						|
 | 
						|
static Result<bool> walk_path_dir(const std::wstring &dir_name,
 | 
						|
                                  const std::function<WalkPath::Action(CSlice name, WalkPath::Type type)> &func) {
 | 
						|
  std::wstring name = dir_name + L"\\*";
 | 
						|
  WIN32_FIND_DATA file_data;
 | 
						|
  auto handle = FindFirstFileExW(name.c_str(), FindExInfoStandard, &file_data, FindExSearchNameMatch, nullptr, 0);
 | 
						|
  if (handle == INVALID_HANDLE_VALUE) {
 | 
						|
    return OS_ERROR(PSLICE() << "FindFirstFileEx" << tag("name", from_wstring(name).ok()));
 | 
						|
  }
 | 
						|
 | 
						|
  SCOPE_EXIT {
 | 
						|
    FindClose(handle);
 | 
						|
  };
 | 
						|
 | 
						|
  TRY_RESULT(dir_entry_name, from_wstring(dir_name));
 | 
						|
  switch (func(dir_entry_name, WalkPath::Type::EnterDir)) {
 | 
						|
    case WalkPath::Action::Abort:
 | 
						|
      return false;
 | 
						|
    case WalkPath::Action::SkipDir:
 | 
						|
      return true;
 | 
						|
    case WalkPath::Action::Continue:
 | 
						|
      break;
 | 
						|
  }
 | 
						|
 | 
						|
  while (true) {
 | 
						|
    auto full_name = dir_name + L"\\" + file_data.cFileName;
 | 
						|
    TRY_RESULT(entry_name, from_wstring(full_name));
 | 
						|
    if (file_data.cFileName[0] != '.') {
 | 
						|
      if ((file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0) {
 | 
						|
        TRY_RESULT(is_ok, walk_path_dir(full_name, func));
 | 
						|
        if (!is_ok) {
 | 
						|
          return false;
 | 
						|
        }
 | 
						|
      } else {
 | 
						|
        switch (func(entry_name, WalkPath::Type::NotDir)) {
 | 
						|
          case WalkPath::Action::Abort:
 | 
						|
            return false;
 | 
						|
          case WalkPath::Action::SkipDir:
 | 
						|
          case WalkPath::Action::Continue:
 | 
						|
            break;
 | 
						|
        }
 | 
						|
      }
 | 
						|
    }
 | 
						|
    auto status = FindNextFileW(handle, &file_data);
 | 
						|
    if (status == 0) {
 | 
						|
      auto last_error = GetLastError();
 | 
						|
      if (last_error == ERROR_NO_MORE_FILES) {
 | 
						|
        break;
 | 
						|
      }
 | 
						|
      return OS_ERROR("FindNextFileW");
 | 
						|
    }
 | 
						|
  }
 | 
						|
  switch (func(dir_entry_name, WalkPath::Type::ExitDir)) {
 | 
						|
    case WalkPath::Action::Abort:
 | 
						|
      return false;
 | 
						|
    case WalkPath::Action::SkipDir:
 | 
						|
    case WalkPath::Action::Continue:
 | 
						|
      break;
 | 
						|
  }
 | 
						|
  return true;
 | 
						|
}
 | 
						|
 | 
						|
Status WalkPath::do_run(CSlice path, const std::function<Action(CSlice name, Type)> &func) {
 | 
						|
  TRY_RESULT(wpath, to_wstring(path));
 | 
						|
  Slice path_slice = path;
 | 
						|
  while (!path_slice.empty() && (path_slice.back() == '/' || path_slice.back() == '\\')) {
 | 
						|
    path_slice.remove_suffix(1);
 | 
						|
    wpath.pop_back();
 | 
						|
  }
 | 
						|
  TRY_STATUS(walk_path_dir(wpath, func));
 | 
						|
  return Status::OK();
 | 
						|
}
 | 
						|
 | 
						|
#endif
 | 
						|
 | 
						|
}  // namespace td
 |