[llvm-commits] CVS: llvm/lib/System/Unix/Path.cpp Unix.h

[Reid Spencer]

Changes in directory llvm/lib/System/Unix:

Path.cpp added (r1.1)
Unix.h added (r1.1)
---
Log message:

Initial implementation of the Path operating system concept.


---
Diffs of the changes:  (+172 -0)

Index: llvm/lib/System/Unix/Path.cpp
diff -c /dev/null llvm/lib/System/Unix/Path.cpp:1.1
*** /dev/null	Wed Aug 25 01:19:11 2004
--- llvm/lib/System/Unix/Path.cpp	Wed Aug 25 01:19:01 2004
***************
*** 0 ****
--- 1,138 ----
+ //===- llvm/System/Unix/Path.cpp - Unix 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.
+ // 
+ //===----------------------------------------------------------------------===//
+ //
+ // This file implements the Unix specific portion of the Path class.
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ //===----------------------------------------------------------------------===//
+ //=== WARNING: Implementation here must contain only generic UNIX code that
+ //===          is guaranteed to work on all UNIX variants.
+ //===----------------------------------------------------------------------===//
+ 
+ #include "Unix.h"
+ #include <sys/stat.h>
+ #include <fcntl.h>
+ 
+ bool
+ Path::is_file() const {
+   if (!empty() && ((*this)[length()-1] !=  '/'))
+     return true;
+   return false;
+ }
+ 
+ bool
+ Path::is_directory() const {
+   if ((!empty()) && ((*this)[length()-1] ==  '/'))
+     return true;
+   return false;
+ }
+ 
+ void
+ Path::create( bool create_parents) {
+   if ( is_directory() ) {
+     if ( create_parents )
+       this->create_directories( );
+     this->create_directory( );
+   } else if ( is_file() ) {
+     if ( create_parents )
+       this->create_directories( );
+     this->create_file( );
+   }
+ }
+ 
+ void
+ Path::remove() {
+   if ( is_directory() ) {
+     if ( exists() )
+       this->remove_directory( );
+   } else if ( is_file() )
+     if ( exists() ) 
+       this->remove_file( );
+ }
+ 
+ bool
+ Path::exists() {
+   char pathname[MAXPATHLEN];
+   this->fill(pathname,MAXPATHLEN);
+   int lastchar = this->length() - 1 ; 
+   if (pathname[lastchar] == '/') 
+     pathname[lastchar] = 0;
+   return 0 == access(pathname, F_OK );
+ }
+ 
+ void
+ Path::create_directory( ) {
+   char pathname[MAXPATHLEN];
+   this->fill(pathname,MAXPATHLEN);
+   int lastchar = this->length() - 1 ; 
+   if (pathname[lastchar] == '/') 
+     pathname[lastchar] = 0;
+   if (0 != mkdir(pathname, S_IRWXU | S_IRWXG))
+     ThrowErrno(pathname);
+ }
+ 
+ void
+ Path::create_directories() {
+   char pathname[MAXPATHLEN];
+   this->fill(pathname,MAXPATHLEN);
+   int lastchar = this->length() - 1 ; 
+   if (pathname[lastchar] == '/') 
+     pathname[lastchar] = 0;
+ 
+   char * next = index(pathname,'/');
+   if ( pathname[0] == '/') 
+     next = index(&pathname[1],'/');
+   while ( next != 0 )
+   {
+     *next = 0;
+     if (0 != access(pathname, F_OK | R_OK))
+       if (0 != mkdir(pathname, S_IRWXU | S_IRWXG))
+         ThrowErrno(pathname);
+     char* save = next;
+     next = index(pathname,'/');
+     *save = '/';
+   }
+ }
+ 
+ void
+ Path::remove_directory()
+ {
+   char pathname[MAXPATHLEN];
+   this->fill(pathname,MAXPATHLEN);
+   int lastchar = this->length() - 1 ; 
+   if (pathname[lastchar] == '/') 
+     pathname[lastchar] = 0;
+   if ( 0 != rmdir(pathname))
+     ThrowErrno(pathname);
+ }
+ 
+ void
+ Path::create_file() {
+   char pathname[MAXPATHLEN];
+   this->fill(pathname,MAXPATHLEN);
+   int lastchar = this->length() - 1 ; 
+   if (pathname[lastchar] == '/') 
+     pathname[lastchar] = 0;
+   if (0 != creat(pathname, S_IRUSR | S_IWUSR))
+     ThrowErrno(pathname);
+ }
+ 
+ void
+ Path::remove_file() {
+   char pathname[MAXPATHLEN];
+   this->fill(pathname,MAXPATHLEN);
+   int lastchar = this->length() - 1 ; 
+   if (pathname[lastchar] == '/') 
+     pathname[lastchar] = 0;
+   if (0 != unlink(pathname))
+     ThrowErrno(pathname);
+ }
+ 
+ // vim: sw=2


Index: llvm/lib/System/Unix/Unix.h
diff -c /dev/null llvm/lib/System/Unix/Unix.h:1.1
*** /dev/null	Wed Aug 25 01:19:12 2004
--- llvm/lib/System/Unix/Unix.h	Wed Aug 25 01:19:01 2004
***************
*** 0 ****
--- 1,34 ----
+ //===- llvm/System/Unix/Unix.h - Common Unix Include File -----*- 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.
+ // 
+ //===----------------------------------------------------------------------===//
+ //
+ // This file defines things specific to Unix implementations.
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ //===----------------------------------------------------------------------===//
+ //=== WARNING: Implementation here must contain only generic UNIX code that
+ //===          is guaranteed to work on all UNIX variants.
+ //===----------------------------------------------------------------------===//
+ 
+ #include <unistd.h>
+ #include <stdlib.h>
+ #include <string.h>
+ #include <errno.h>
+ #include <sys/types.h>
+ #include <sys/param.h>
+ 
+ inline void ThrowErrno(const std::string& prefix) {
+ #if defined __USE_XOPEN2K || defined __USE_MISC
+     char buffer[MAXPATHLEN];
+     strerror_r(errno,buffer, MAXPATHLEN);
+     throw prefix + ": " + buffer;
+ #else
+     throw prefix + ": " + strerror(errno);
+ #endif
+ }