//===----------------------------------------------------------------------===//
#include <llvm/Config/config.h>
+#include <llvm/Config/alloca.h>
#include "Unix.h"
#include <sys/stat.h>
#include <fcntl.h>
#include <fstream>
+#include <utime.h>
+#include <dirent.h>
namespace llvm {
using namespace sys;
{
if (unverified_path.empty())
return;
- if (this->is_valid())
+ if (this->isValid())
return;
// oops, not valid.
path.clear();
Path
Path::GetRootDirectory() {
Path result;
- result.set_directory("/");
+ result.setDirectory("/");
return result;
}
static inline bool IsLibrary(Path& path, const std::string& basename) {
- if (path.append_file(std::string("lib") + basename)) {
- if (path.append_suffix(Path::GetDLLSuffix()) && path.readable())
+ if (path.appendFile(std::string("lib") + basename)) {
+ if (path.appendSuffix(Path::GetDLLSuffix()) && path.readable())
return true;
- else if (path.elide_suffix() && path.append_suffix("a") && path.readable())
+ else if (path.elideSuffix() && path.appendSuffix("a") && path.readable())
return true;
- else if (path.elide_suffix() && path.append_suffix("o") && path.readable())
+ else if (path.elideSuffix() && path.appendSuffix("o") && path.readable())
return true;
- else if (path.elide_suffix() && path.append_suffix("bc") && path.readable())
+ else if (path.elideSuffix() && path.appendSuffix("bc") && path.readable())
return true;
- } else if (path.elide_file() && path.append_file(basename)) {
- if (path.append_suffix(Path::GetDLLSuffix()) && path.readable())
+ } else if (path.elideFile() && path.appendFile(basename)) {
+ if (path.appendSuffix(Path::GetDLLSuffix()) && path.readable())
return true;
- else if (path.elide_suffix() && path.append_suffix("a") && path.readable())
+ else if (path.elideSuffix() && path.appendSuffix("a") && path.readable())
return true;
- else if (path.elide_suffix() && path.append_suffix("o") && path.readable())
+ else if (path.elideSuffix() && path.appendSuffix("o") && path.readable())
return true;
- else if (path.elide_suffix() && path.append_suffix("bc") && path.readable())
+ else if (path.elideSuffix() && path.appendSuffix("bc") && path.readable())
return true;
}
path.clear();
// Try the paths provided
for (std::vector<std::string>::const_iterator I = LibPaths.begin(),
E = LibPaths.end(); I != E; ++I ) {
- if (result.set_directory(*I) && IsLibrary(result,basename))
+ if (result.setDirectory(*I) && IsLibrary(result,basename))
return result;
}
// Try the LLVM lib directory in the LLVM install area
- if (result.set_directory(LLVM_LIBDIR) && IsLibrary(result,basename))
+ if (result.setDirectory(LLVM_LIBDIR) && IsLibrary(result,basename))
return result;
// Try /usr/lib
- if (result.set_directory("/usr/lib/") && IsLibrary(result,basename))
+ if (result.setDirectory("/usr/lib/") && IsLibrary(result,basename))
return result;
// Try /lib
- if (result.set_directory("/lib/") && IsLibrary(result,basename))
+ if (result.setDirectory("/lib/") && IsLibrary(result,basename))
return result;
// Can't find it, give up and return invalid path.
Path
Path::GetLLVMConfigDir() {
Path result;
- if (result.set_directory(LLVM_ETCDIR))
+ if (result.setDirectory(LLVM_ETCDIR))
return result;
return GetLLVMDefaultConfigDir();
}
const char* home = getenv("HOME");
if (home) {
Path result;
- if (result.set_directory(home))
+ if (result.setDirectory(home))
return result;
}
return GetRootDirectory();
}
bool
-Path::is_file() const {
- return (is_valid() && path[path.length()-1] != '/');
+Path::isFile() const {
+ return (isValid() && path[path.length()-1] != '/');
}
bool
-Path::is_directory() const {
- return (is_valid() && path[path.length()-1] == '/');
+Path::isDirectory() const {
+ return (isValid() && path[path.length()-1] == '/');
}
std::string
-Path::get_basename() const {
+Path::getBasename() const {
// Find the last slash
size_t slash = path.rfind('/');
if (slash == std::string::npos)
return path.substr(slash, path.rfind('.'));
}
-bool Path::has_magic_number(const std::string &Magic) const {
+bool Path::hasMagicNumber(const std::string &Magic) const {
size_t len = Magic.size();
- char buf[ 1 + len];
- std::ifstream f(path.c_str());
- f.read(buf, len);
+ assert(len < 1024 && "Request for magic string too long");
+ char* buf = (char*) alloca(1 + len);
+ int fd = ::open(path.c_str(),O_RDONLY);
+ if (fd < 0)
+ return false;
+ if (0 != ::read(fd, buf, len))
+ return false;
+ close(fd);
buf[len] = '\0';
return Magic == buf;
}
+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);
+ int fd = ::open(path.c_str(),O_RDONLY);
+ if (fd < 0)
+ return false;
+ if (0 != ::read(fd, buf, len))
+ return false;
+ close(fd);
+ buf[len] = '\0';
+ Magic = buf;
+ return true;
+}
+
bool
-Path::is_bytecode_file() const {
- if (readable()) {
- return has_magic_number("llvm");
- }
- return false;
+Path::isBytecodeFile() const {
+ char buffer[ 4];
+ buffer[0] = 0;
+ std::ifstream f(path.c_str());
+ f.read(buffer, 4);
+ if (f.bad())
+ ThrowErrno("can't read file signature");
+
+ return (buffer[0] == 'l' && buffer[1] == 'l' && buffer[2] == 'v' &&
+ (buffer[3] == 'c' || buffer[3] == 'm'));
}
bool
-Path::is_archive() const {
+Path::isArchive() const {
if (readable()) {
- return has
_magic_number("!<arch>\012");
+ return has
MagicNumber("!<arch>\012");
}
return false;
}
return path.substr(pos+1);
}
+void
+Path::getStatusInfo(StatusInfo& info) const {
+ struct stat buf;
+ if (0 != stat(path.c_str(), &buf)) {
+ ThrowErrno(std::string("Can't get status: ")+path);
+ }
+ info.fileSize = buf.st_size;
+ info.modTime.fromEpochTime(buf.st_mtime);
+ info.mode = buf.st_mode;
+ info.user = buf.st_uid;
+ info.group = buf.st_gid;
+ info.isDir = S_ISDIR(buf.st_mode);
+ if (info.isDir && path[path.length()-1] != '/')
+ path += '/';
+}
+
+bool
+Path::getDirectoryContents(std::set<Path>& result) const {
+ if (!isDirectory())
+ return false;
+ DIR* direntries = ::opendir(path.c_str());
+ if (direntries == 0)
+ ThrowErrno(path + ": can't open directory");
+
+ result.clear();
+ struct dirent* de = ::readdir(direntries);
+ while (de != 0) {
+ if (de->d_name[0] != '.') {
+ Path aPath(path + (const char*)de->d_name);
+ struct stat buf;
+ if (0 != stat(aPath.path.c_str(), &buf))
+ ThrowErrno(aPath.path + ": can't get status");
+ if (S_ISDIR(buf.st_mode))
+ aPath.path += "/";
+ result.insert(aPath);
+ }
+ de = ::readdir(direntries);
+ }
+
+ closedir(direntries);
+ return true;
+}
+
bool
-Path::set_directory(const std::string& a_path) {
+Path::setDirectory(const std::string& a_path) {
if (a_path.size() == 0)
return false;
Path save(*this);
size_t last = a_path.size() -1;
if (last != 0 && a_path[last] != '/')
path += '/';
- if (!is_valid()) {
+ if (!isValid()) {
path = save.path;
return false;
}
}
bool
-Path::set_file(const std::string& a_path) {
+Path::setFile(const std::string& a_path) {
if (a_path.size() == 0)
return false;
Path save(*this);
while (last > 0 && a_path[last] == '/')
last--;
path.erase(last+1);
- if (!is_valid()) {
+ if (!isValid()) {
path = save.path;
return false;
}
}
bool
-Path::append_directory(const std::string& dir) {
- if (is_file())
+Path::appendDirectory(const std::string& dir) {
+ if (isFile())
return false;
Path save(*this);
path += dir;
path += "/";
- if (!is_valid()) {
+ if (!isValid()) {
path = save.path;
return false;
}
}
bool
-Path::elide_directory() {
- if (is_file())
+Path::elideDirectory() {
+ if (isFile())
return false;
size_t slashpos = path.rfind('/',path.size());
if (slashpos == 0 || slashpos == std::string::npos)
}
bool
-Path::append_file(const std::string& file) {
- if (!is_directory())
+Path::appendFile(const std::string& file) {
+ if (!isDirectory())
return false;
Path save(*this);
path += file;
- if (!is_valid()) {
+ if (!isValid()) {
path = save.path;
return false;
}
}
bool
-Path::elide_file() {
- if (is_directory())
+Path::elideFile() {
+ if (isDirectory())
return false;
size_t slashpos = path.rfind('/',path.size());
if (slashpos == std::string::npos)
}
bool
-Path::append_suffix(const std::string& suffix) {
- if (is_directory())
+Path::appendSuffix(const std::string& suffix) {
+ if (isDirectory())
return false;
Path save(*this);
path.append(".");
path.append(suffix);
- if (!is_valid()) {
+ if (!isValid()) {
path = save.path;
return false;
}
}
bool
-Path::elide_suffix() {
- if (is_directory()) return false;
+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 &&
bool
-Path::create_directory( bool create_parents) {
+Path::createDirectory( bool create_parents) {
// Make sure we're dealing with a directory
- if (!is_directory()) return false;
+ if (!isDirectory()) return false;
// Get a writeable copy of the path name
char pathname[MAXPATHLEN];
int lastchar = path.length() - 1 ;
if (pathname[lastchar] == '/')
pathname[lastchar] = 0;
+ else
+ pathname[lastchar+1] = 0;
// If we're supposed to create intermediate directories
if ( create_parents ) {
if (0 != mkdir(pathname, S_IRWXU | S_IRWXG))
ThrowErrno(std::string(pathname) + ": Can't create directory");
char* save = next;
- next = strchr(pathname,'/');
+ next = strchr(next+1,'/');
*save = '/';
}
- } else if (0 != mkdir(pathname, S_IRWXU | S_IRWXG)) {
- ThrowErrno(std::string(pathname) + ": Can't create directory");
}
+
+ if (0 != access(pathname, F_OK | R_OK))
+ if (0 != mkdir(pathname, S_IRWXU | S_IRWXG))
+ ThrowErrno(std::string(pathname) + ": Can't create directory");
return true;
}
bool
-Path::create_file() {
+Path::createFile() {
// Make sure we're dealing with a file
- if (!is_file()) return false;
+ if (!isFile()) return false;
// Create the file
int fd = ::creat(path.c_str(), S_IRUSR | S_IWUSR);
if (fd < 0)
- ThrowErrno(std::string(path.c_str()) + ": Can't create file");
+ ThrowErrno(path + ": Can't create file");
::close(fd);
return true;
}
bool
-Path::destroy_directory(bool remove_contents) {
+Path::createTemporaryFile() {
+ // Make sure we're dealing with a file
+ if (!isFile()) return false;
+
+ // Append the filename filler
+ char pathname[MAXPATHLEN];
+ path.copy(pathname,MAXPATHLEN);
+ pathname[path.length()] = 0;
+ strcat(pathname,"XXXXXX");
+ int fd = ::mkstemp(pathname);
+ if (fd < 0) {
+ ThrowErrno(path + ": Can't create temporary file");
+ }
+ path = pathname;
+ ::close(fd);
+ return true;
+}
+
+bool
+Path::destroyDirectory(bool remove_contents) {
// Make sure we're dealing with a directory
- if (!is_directory()) return false;
+ if (!isDirectory()) return false;
// If it doesn't exist, we're done.
if (!exists()) return true;
int lastchar = path.length() - 1 ;
if (pathname[lastchar] == '/')
pathname[lastchar] = 0;
+ else
+ pathname[lastchar+1] = 0;
if ( 0 != rmdir(pathname))
ThrowErrno(std::string(pathname) + ": Can't destroy directory");
}
}
bool
-Path::destroy_file() {
- if (!is_file()) return false;
+Path::destroyFile() {
+ if (!isFile()) return false;
if (0 != unlink(path.c_str()))
- ThrowErrno(std::string(path.c_str()) + ": Can't destroy file");
+ ThrowErrno(path + ": Can't destroy file");
+ return true;
+}
+
+bool
+Path::renameFile(const Path& newName) {
+ if (!isFile()) return false;
+ if (0 != rename(path.c_str(), newName.c_str()))
+ ThrowErrno(std::string("can't rename ") + path + " as " + newName.get());
+ return true;
+}
+
+bool
+Path::setStatusInfo(const StatusInfo& si) const {
+ if (!isFile()) return false;
+ struct utimbuf utb;
+ utb.actime = si.modTime.toPosixTime();
+ utb.modtime = utb.actime;
+ if (0 != ::utime(path.c_str(),&utb))
+ ThrowErrno(path + ": can't set file modification time");
+ if (0 != ::chmod(path.c_str(),si.mode))
+ ThrowErrno(path + ": can't set mode");
return true;
}
projects / oota-llvm.git / blobdiff