diff options
author | Reid Spencer <rspencer@reidspencer.com> | 2005-01-09 23:29:00 +0000 |
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committer | Reid Spencer <rspencer@reidspencer.com> | 2005-01-09 23:29:00 +0000 |
commit | bccc8abc79338d1cfdd5ea20f7288452ddf75b84 (patch) | |
tree | c7009daa6a24f65cb6addfee22bc6bc8f40b0d4b /lib/System/Win32/Path.cpp | |
parent | 5cdcc58d51c792d329202bab97c34aefbc043b15 (diff) |
Rename Unix/*.cpp and Win32/*.cpp to have a *.inc suffix so that the silly
gdb debugger doesn't get confused on which file it is reading (the one in
lib/System or the one in lib/System/{Win32,Unix})
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19426 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/System/Win32/Path.cpp')
-rw-r--r-- | lib/System/Win32/Path.cpp | 756 |
1 files changed, 0 insertions, 756 deletions
diff --git a/lib/System/Win32/Path.cpp b/lib/System/Win32/Path.cpp deleted file mode 100644 index a8862380e9..0000000000 --- a/lib/System/Win32/Path.cpp +++ /dev/null @@ -1,756 +0,0 @@ -//===- llvm/System/Linux/Path.cpp - Linux Path Implementation ---*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file was developed by Reid Spencer and is distributed under the -// University of Illinois Open Source License. See LICENSE.TXT for details. -// -// Modified by Henrik Bach to comply with at least MinGW. -// Ported to Win32 by Jeff Cohen. -// -//===----------------------------------------------------------------------===// -// -// This file provides the Win32 specific implementation of the Path class. -// -//===----------------------------------------------------------------------===// - -//===----------------------------------------------------------------------===// -//=== WARNING: Implementation here must contain only generic Win32 code that -//=== is guaranteed to work on *all* Win32 variants. -//===----------------------------------------------------------------------===// - -#include "Win32.h" -#include <malloc.h> - -// We need to undo a macro defined in Windows.h, otherwise we won't compile: -#undef CopyFile - -static void FlipBackSlashes(std::string& s) { - for (size_t i = 0; i < s.size(); i++) - if (s[i] == '\\') - s[i] = '/'; -} - -namespace llvm { -namespace sys { - -bool -Path::isValid() const { - if (path.empty()) - return false; - - // If there is a colon, it must be the second character, preceded by a letter - // and followed by something. - size_t len = path.size(); - size_t pos = path.rfind(':',len); - if (pos != std::string::npos) { - if (pos != 1 || !isalpha(path[0]) || len < 3) - return false; - } - - // Check for illegal characters. - if (path.find_first_of("\\<>\"|\001\002\003\004\005\006\007\010\011\012" - "\013\014\015\016\017\020\021\022\023\024\025\026" - "\027\030\031\032\033\034\035\036\037") - != std::string::npos) - return false; - - // A file or directory name may not end in a period. - if (path[len-1] == '.') - return false; - if (len >= 2 && path[len-2] == '.' && path[len-1] == '/') - return false; - - // A file or directory name may not end in a space. - if (path[len-1] == ' ') - return false; - if (len >= 2 && path[len-2] == ' ' && path[len-1] == '/') - return false; - - return true; -} - -static Path *TempDirectory = NULL; - -Path -Path::GetTemporaryDirectory() { - if (TempDirectory) - return *TempDirectory; - - char pathname[MAX_PATH]; - if (!GetTempPath(MAX_PATH, pathname)) - throw std::string("Can't determine temporary directory"); - - Path result; - result.setDirectory(pathname); - - // Append a subdirectory passed on our process id so multiple LLVMs don't - // step on each other's toes. - sprintf(pathname, "LLVM_%u", GetCurrentProcessId()); - result.appendDirectory(pathname); - - // If there's a directory left over from a previous LLVM execution that - // happened to have the same process id, get rid of it. - result.destroyDirectory(true); - - // And finally (re-)create the empty directory. - result.createDirectory(false); - TempDirectory = new Path(result); - return *TempDirectory; -} - -Path::Path(const std::string& unverified_path) - : path(unverified_path) -{ - FlipBackSlashes(path); - if (unverified_path.empty()) - return; - if (this->isValid()) - return; - // oops, not valid. - path.clear(); - throw std::string(unverified_path + ": path is not valid"); -} - -// FIXME: the following set of functions don't map to Windows very well. -Path -Path::GetRootDirectory() { - Path result; - result.setDirectory("/"); - return result; -} - -static void getPathList(const char*path, std::vector<sys::Path>& Paths) { - const char* at = path; - const char* delim = strchr(at, ';'); - Path tmpPath; - while( delim != 0 ) { - std::string tmp(at, size_t(delim-at)); - if (tmpPath.setDirectory(tmp)) - if (tmpPath.readable()) - Paths.push_back(tmpPath); - at = delim + 1; - delim = strchr(at, ';'); - } - if (*at != 0) - if (tmpPath.setDirectory(std::string(at))) - if (tmpPath.readable()) - Paths.push_back(tmpPath); - -} - -void -Path::GetSystemLibraryPaths(std::vector<sys::Path>& Paths) { - Paths.push_back(sys::Path("C:\\WINDOWS\\SYSTEM32\\")); - Paths.push_back(sys::Path("C:\\WINDOWS\\")); -} - -void -Path::GetBytecodeLibraryPaths(std::vector<sys::Path>& Paths) { - char * env_var = getenv("LLVM_LIB_SEARCH_PATH"); - if (env_var != 0) { - getPathList(env_var,Paths); - } -#ifdef LLVM_LIBDIR - { - Path tmpPath; - if (tmpPath.setDirectory(LLVM_LIBDIR)) - if (tmpPath.readable()) - Paths.push_back(tmpPath); - } -#endif - GetSystemLibraryPaths(Paths); -} - -Path -Path::GetLLVMDefaultConfigDir() { - // TODO: this isn't going to fly on Windows - return Path("/etc/llvm/"); -} - -Path -Path::GetUserHomeDirectory() { - // TODO: Typical Windows setup doesn't define HOME. - const char* home = getenv("HOME"); - if (home) { - Path result; - if (result.setDirectory(home)) - return result; - } - return GetRootDirectory(); -} -// FIXME: the above set of functions don't map to Windows very well. - -bool -Path::isFile() const { - return (isValid() && path[path.length()-1] != '/'); -} - -bool -Path::isDirectory() const { - return (isValid() && path[path.length()-1] == '/'); -} - -std::string -Path::getBasename() const { - // Find the last slash - size_t slash = path.rfind('/'); - if (slash == std::string::npos) - slash = 0; - else - slash++; - - return path.substr(slash, path.rfind('.')); -} - -bool Path::hasMagicNumber(const std::string &Magic) const { - std::string actualMagic; - if (getMagicNumber(actualMagic, Magic.size())) - return Magic == actualMagic; - return false; -} - -bool -Path::isBytecodeFile() const { - std::string actualMagic; - if (!getMagicNumber(actualMagic, 4)) - return false; - return actualMagic == "llvc" || actualMagic == "llvm"; -} - -bool -Path::exists() const { - DWORD attr = GetFileAttributes(path.c_str()); - return attr != INVALID_FILE_ATTRIBUTES; -} - -bool -Path::readable() const { - // FIXME: take security attributes into account. - DWORD attr = GetFileAttributes(path.c_str()); - return attr != INVALID_FILE_ATTRIBUTES; -} - -bool -Path::writable() const { - // FIXME: take security attributes into account. - DWORD attr = GetFileAttributes(path.c_str()); - return (attr != INVALID_FILE_ATTRIBUTES) && !(attr & FILE_ATTRIBUTE_READONLY); -} - -bool -Path::executable() const { - // FIXME: take security attributes into account. - DWORD attr = GetFileAttributes(path.c_str()); - return attr != INVALID_FILE_ATTRIBUTES; -} - -std::string -Path::getLast() const { - // Find the last slash - size_t pos = path.rfind('/'); - - // Handle the corner cases - if (pos == std::string::npos) - return path; - - // If the last character is a slash - if (pos == path.length()-1) { - // Find the second to last slash - size_t pos2 = path.rfind('/', pos-1); - if (pos2 == std::string::npos) - return path.substr(0,pos); - else - return path.substr(pos2+1,pos-pos2-1); - } - // Return everything after the last slash - return path.substr(pos+1); -} - -void -Path::getStatusInfo(StatusInfo& info) const { - WIN32_FILE_ATTRIBUTE_DATA fi; - if (!GetFileAttributesEx(path.c_str(), GetFileExInfoStandard, &fi)) - ThrowError(std::string(path) + ": Can't get status: "); - - info.fileSize = fi.nFileSizeHigh; - info.fileSize <<= 32; - info.fileSize += fi.nFileSizeLow; - - info.mode = fi.dwFileAttributes & FILE_ATTRIBUTE_READONLY ? 0555 : 0777; - info.user = 9999; // Not applicable to Windows, so... - info.group = 9999; // Not applicable to Windows, so... - - __int64 ft = *reinterpret_cast<__int64*>(&fi.ftLastWriteTime); - info.modTime.fromWin32Time(ft); - - info.isDir = fi.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY; - if (info.isDir && path[path.length() - 1] != '/') - path += '/'; - else if (!info.isDir && path[path.length() - 1] == '/') - path.erase(path.length() - 1); -} - -static bool AddPermissionBits(const std::string& Filename, int bits) { - DWORD attr = GetFileAttributes(Filename.c_str()); - - // If it doesn't exist, we're done. - if (attr == INVALID_FILE_ATTRIBUTES) - return false; - - // The best we can do to interpret Unix permission bits is to use - // the owner writable bit. - if ((attr & FILE_ATTRIBUTE_READONLY) && (bits & 0200)) { - if (!SetFileAttributes(Filename.c_str(), attr & ~FILE_ATTRIBUTE_READONLY)) - ThrowError(Filename + ": SetFileAttributes: "); - } - return true; -} - -void Path::makeReadable() { - // All files are readable on Windows (ignoring security attributes). -} - -void Path::makeWriteable() { - DWORD attr = GetFileAttributes(path.c_str()); - - // If it doesn't exist, we're done. - if (attr == INVALID_FILE_ATTRIBUTES) - return; - - if (attr & FILE_ATTRIBUTE_READONLY) { - if (!SetFileAttributes(path.c_str(), attr & ~FILE_ATTRIBUTE_READONLY)) - ThrowError(std::string(path) + ": Can't make file writable: "); - } -} - -void Path::makeExecutable() { - // All files are executable on Windows (ignoring security attributes). -} - -bool -Path::getDirectoryContents(std::set<Path>& result) const { - if (!isDirectory()) - return false; - - result.clear(); - WIN32_FIND_DATA fd; - HANDLE h = FindFirstFile(path.c_str(), &fd); - if (h == INVALID_HANDLE_VALUE) { - if (GetLastError() == ERROR_NO_MORE_FILES) - return true; // not really an error, now is it? - ThrowError(path + ": Can't read directory: "); - } - - do { - if (fd.cFileName[0] == '.') - continue; - Path aPath(path + &fd.cFileName[0]); - if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) - aPath.path += "/"; - result.insert(aPath); - } while (FindNextFile(h, &fd)); - - DWORD err = GetLastError(); - FindClose(h); - if (err != ERROR_NO_MORE_FILES) { - SetLastError(err); - ThrowError(path + ": Can't read directory: "); - } - return true; -} - -bool -Path::setDirectory(const std::string& a_path) { - if (a_path.size() == 0) - return false; - Path save(*this); - path = a_path; - FlipBackSlashes(path); - size_t last = a_path.size() -1; - if (a_path[last] != '/') - path += '/'; - if (!isValid()) { - path = save.path; - return false; - } - return true; -} - -bool -Path::setFile(const std::string& a_path) { - if (a_path.size() == 0) - return false; - Path save(*this); - path = a_path; - FlipBackSlashes(path); - size_t last = a_path.size() - 1; - while (last > 0 && a_path[last] == '/') - last--; - path.erase(last+1); - if (!isValid()) { - path = save.path; - return false; - } - return true; -} - -bool -Path::appendDirectory(const std::string& dir) { - if (isFile()) - return false; - Path save(*this); - path += dir; - path += "/"; - if (!isValid()) { - path = save.path; - return false; - } - return true; -} - -bool -Path::elideDirectory() { - if (isFile()) - return false; - size_t slashpos = path.rfind('/',path.size()); - if (slashpos == 0 || slashpos == std::string::npos) - return false; - if (slashpos == path.size() - 1) - slashpos = path.rfind('/',slashpos-1); - if (slashpos == std::string::npos) - return false; - path.erase(slashpos); - return true; -} - -bool -Path::appendFile(const std::string& file) { - if (!isDirectory()) - return false; - Path save(*this); - path += file; - if (!isValid()) { - path = save.path; - return false; - } - return true; -} - -bool -Path::elideFile() { - if (isDirectory()) - return false; - size_t slashpos = path.rfind('/',path.size()); - if (slashpos == std::string::npos) - return false; - path.erase(slashpos+1); - return true; -} - -bool -Path::appendSuffix(const std::string& suffix) { - if (isDirectory()) - return false; - Path save(*this); - path.append("."); - path.append(suffix); - if (!isValid()) { - path = save.path; - return false; - } - return true; -} - -bool -Path::elideSuffix() { - if (isDirectory()) return false; - size_t dotpos = path.rfind('.',path.size()); - size_t slashpos = path.rfind('/',path.size()); - if (slashpos != std::string::npos && dotpos != std::string::npos && - dotpos > slashpos) { - path.erase(dotpos, path.size()-dotpos); - return true; - } - return false; -} - - -bool -Path::createDirectory( bool create_parents) { - // Make sure we're dealing with a directory - if (!isDirectory()) return false; - - // Get a writeable copy of the path name - char *pathname = reinterpret_cast<char *>(_alloca(path.length()+1)); - path.copy(pathname,path.length()); - pathname[path.length()] = 0; - - // Determine starting point for initial / search. - char *next = pathname; - if (pathname[0] == '/' && pathname[1] == '/') { - // Skip host name. - next = strchr(pathname+2, '/'); - if (next == NULL) - throw std::string(pathname) + ": badly formed remote directory"; - // Skip share name. - next = strchr(next+1, '/'); - if (next == NULL) - throw std::string(pathname) + ": badly formed remote directory"; - next++; - if (*next == 0) - throw std::string(pathname) + ": badly formed remote directory"; - } else { - if (pathname[1] == ':') - next += 2; // skip drive letter - if (*next == '/') - next++; // skip root directory - } - - // If we're supposed to create intermediate directories - if (create_parents) { - // Loop through the directory components until we're done - while (*next) { - next = strchr(next, '/'); - *next = 0; - if (!CreateDirectory(pathname, NULL)) - ThrowError(std::string(pathname) + ": Can't create directory: "); - *next++ = '/'; - } - } else { - // Drop trailing slash. - pathname[path.size()-1] = 0; - if (!CreateDirectory(pathname, NULL)) { - ThrowError(std::string(pathname) + ": Can't create directory: "); - } - } - return true; -} - -bool -Path::createFile() { - // Make sure we're dealing with a file - if (!isFile()) return false; - - // Create the file - HANDLE h = CreateFile(path.c_str(), GENERIC_WRITE, 0, NULL, CREATE_NEW, - FILE_ATTRIBUTE_NORMAL, NULL); - if (h == INVALID_HANDLE_VALUE) - ThrowError(path + ": Can't create file: "); - - CloseHandle(h); - return true; -} - -bool -Path::destroyDirectory(bool remove_contents) const { - // Make sure we're dealing with a directory - if (!isDirectory()) return false; - - // If it doesn't exist, we're done. - if (!exists()) return true; - - char *pathname = reinterpret_cast<char *>(_alloca(path.length()+1)); - path.copy(pathname,path.length()+1); - int lastchar = path.length() - 1 ; - if (pathname[lastchar] == '/') - pathname[lastchar] = 0; - - if (remove_contents) { - WIN32_FIND_DATA fd; - HANDLE h = FindFirstFile(path.c_str(), &fd); - - // It's a bad idea to alter the contents of a directory while enumerating - // its contents. So build a list of its contents first, then destroy them. - - if (h != INVALID_HANDLE_VALUE) { - std::vector<Path> list; - - do { - if (strcmp(fd.cFileName, ".") == 0) - continue; - if (strcmp(fd.cFileName, "..") == 0) - continue; - - Path aPath(path + &fd.cFileName[0]); - if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) - aPath.path += "/"; - list.push_back(aPath); - } while (FindNextFile(h, &fd)); - - DWORD err = GetLastError(); - FindClose(h); - if (err != ERROR_NO_MORE_FILES) { - SetLastError(err); - ThrowError(path + ": Can't read directory: "); - } - - for (std::vector<Path>::iterator I = list.begin(); I != list.end(); ++I) { - Path &aPath = *I; - if (aPath.isDirectory()) - aPath.destroyDirectory(true); - else - aPath.destroyFile(); - } - } else { - if (GetLastError() != ERROR_NO_MORE_FILES) - ThrowError(path + ": Can't read directory: "); - } - } - - if (!RemoveDirectory(pathname)) - ThrowError(std::string(pathname) + ": Can't destroy directory: "); - return true; -} - -bool -Path::destroyFile() const { - if (!isFile()) return false; - - DWORD attr = GetFileAttributes(path.c_str()); - - // If it doesn't exist, we're done. - if (attr == INVALID_FILE_ATTRIBUTES) - return true; - - // Read-only files cannot be deleted on Windows. Must remove the read-only - // attribute first. - if (attr & FILE_ATTRIBUTE_READONLY) { - if (!SetFileAttributes(path.c_str(), attr & ~FILE_ATTRIBUTE_READONLY)) - ThrowError(path + ": Can't destroy file: "); - } - - if (!DeleteFile(path.c_str())) - ThrowError(path + ": Can't destroy file: "); - return true; -} - -bool Path::getMagicNumber(std::string& Magic, unsigned len) const { - if (!isFile()) - return false; - assert(len < 1024 && "Request for magic string too long"); - char* buf = (char*) alloca(1 + len); - - HANDLE h = CreateFile(path.c_str(), - GENERIC_READ, - FILE_SHARE_READ, - NULL, - OPEN_EXISTING, - FILE_ATTRIBUTE_NORMAL, - NULL); - if (h == INVALID_HANDLE_VALUE) - return false; - - DWORD nRead = 0; - BOOL ret = ReadFile(h, buf, len, &nRead, NULL); - CloseHandle(h); - - if (!ret || nRead != len) - return false; - - buf[len] = '\0'; - Magic = buf; - return true; -} - -bool -Path::renameFile(const Path& newName) { - if (!isFile()) return false; - if (!MoveFile(path.c_str(), newName.c_str())) - ThrowError("Can't move '" + path + - "' to '" + newName.path + "': "); - return true; -} - -bool -Path::setStatusInfo(const StatusInfo& si) const { - if (!isFile()) return false; - - HANDLE h = CreateFile(path.c_str(), - FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES, - FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, - NULL, - OPEN_EXISTING, - FILE_ATTRIBUTE_NORMAL, - NULL); - if (h == INVALID_HANDLE_VALUE) - return false; - - BY_HANDLE_FILE_INFORMATION bhfi; - if (!GetFileInformationByHandle(h, &bhfi)) { - DWORD err = GetLastError(); - CloseHandle(h); - SetLastError(err); - ThrowError(path + ": GetFileInformationByHandle: "); - } - - FILETIME ft; - (uint64_t&)ft = si.modTime.toWin32Time(); - BOOL ret = SetFileTime(h, NULL, &ft, &ft); - DWORD err = GetLastError(); - CloseHandle(h); - if (!ret) { - SetLastError(err); - ThrowError(path + ": SetFileTime: "); - } - - // Best we can do with Unix permission bits is to interpret the owner - // writable bit. - if (si.mode & 0200) { - if (bhfi.dwFileAttributes & FILE_ATTRIBUTE_READONLY) { - if (!SetFileAttributes(path.c_str(), - bhfi.dwFileAttributes & ~FILE_ATTRIBUTE_READONLY)) - ThrowError(path + ": SetFileAttributes: "); - } - } else { - if (!(bhfi.dwFileAttributes & FILE_ATTRIBUTE_READONLY)) { - if (!SetFileAttributes(path.c_str(), - bhfi.dwFileAttributes | FILE_ATTRIBUTE_READONLY)) - ThrowError(path + ": SetFileAttributes: "); - } - } - - return true; -} - -void -sys::CopyFile(const sys::Path &Dest, const sys::Path &Src) { - // Can't use CopyFile macro defined in Windows.h because it would mess up the - // above line. We use the expansion it would have in a non-UNICODE build. - if (!::CopyFileA(Src.c_str(), Dest.c_str(), false)) - ThrowError("Can't copy '" + Src.toString() + - "' to '" + Dest.toString() + "': "); -} - -void -Path::makeUnique(bool reuse_current) { - if (reuse_current && !exists()) - return; // File doesn't exist already, just use it! - - Path dir (*this); - dir.elideFile(); - std::string fname = this->getLast(); - - char newName[MAX_PATH + 1]; - if (!GetTempFileName(dir.c_str(), fname.c_str(), 0, newName)) - ThrowError("Cannot make unique filename for '" + path + "': "); - - path = newName; -} - -bool -Path::createTemporaryFile(bool reuse_current) { - // Make sure we're dealing with a file - if (!isFile()) - return false; - - // Make this into a unique file name - makeUnique( reuse_current ); - return true; -} - -} -} - -// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab - |