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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
commit675b4aa878f16291ce33fced48a2bc7425f635ae (patch)
tree409914df27a98f65adf866da669429c4de141b6f /src/OSSupport/File.h
parentLineBlockTracer: Using the coord-based block faces. (diff)
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Diffstat (limited to 'src/OSSupport/File.h')
-rw-r--r--src/OSSupport/File.h138
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diff --git a/src/OSSupport/File.h b/src/OSSupport/File.h
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index 000000000..cfb3a2019
--- /dev/null
+++ b/src/OSSupport/File.h
@@ -0,0 +1,138 @@
+
+// cFile.h
+
+// Interfaces to the cFile class providing an OS-independent abstraction of a file.
+
+/*
+The object is optimized towards binary reads.
+The object has no multithreading locks, don't use from multiple threads!
+Usage:
+1, Construct a cFile instance (no-param constructor)
+2, Open a file using Open(), check return value for success
+3, Read / write
+4, Destroy the instance
+
+-- OR --
+
+1, Construct a cFile instance opening the file (filename-param constructor)
+2, Check if the file was opened using IsOpen()
+3, Read / write
+4, Destroy the instance
+*/
+
+
+
+
+
+#pragma once
+
+
+
+
+
+#ifndef _WIN32
+ #define USE_STDIO_FILE
+#endif // _WIN32
+
+// DEBUG:
+#define USE_STDIO_FILE
+
+
+
+
+
+// tolua_begin
+
+class cFile
+{
+public:
+
+ // tolua_end
+
+ #ifdef _WIN32
+ static const char PathSeparator = '\\';
+ #else
+ static const char PathSeparator = '/';
+ #endif
+
+ /// The mode in which to open the file
+ enum eMode
+ {
+ fmRead, // Read-only. If the file doesn't exist, object will not be valid
+ fmWrite, // Write-only. If the file already exists, it will be overwritten
+ fmReadWrite // Read/write. If the file already exists, it will be left intact; writing will overwrite the data from the beginning
+ } ;
+
+ /// Simple constructor - creates an unopened file object, use Open() to open / create a real file
+ cFile(void);
+
+ /// Constructs and opens / creates the file specified, use IsOpen() to check for success
+ cFile(const AString & iFileName, eMode iMode);
+
+ /// Auto-closes the file, if open
+ ~cFile();
+
+ bool Open(const AString & iFileName, eMode iMode);
+ void Close(void);
+ bool IsOpen(void) const;
+ bool IsEOF(void) const;
+
+ /// Reads up to iNumBytes bytes into iBuffer, returns the number of bytes actually read, or -1 on failure; asserts if not open
+ int Read (void * iBuffer, int iNumBytes);
+
+ /// Writes up to iNumBytes bytes from iBuffer, returns the number of bytes actually written, or -1 on failure; asserts if not open
+ int Write(const void * iBuffer, int iNumBytes);
+
+ /// Seeks to iPosition bytes from file start, returns old position or -1 for failure; asserts if not open
+ int Seek (int iPosition);
+
+ /// Returns the current position (bytes from file start) or -1 for failure; asserts if not open
+ int Tell (void) const;
+
+ /// Returns the size of file, in bytes, or -1 for failure; asserts if not open
+ int GetSize(void) const;
+
+ /// Reads the file from current position till EOF into an AString; returns the number of bytes read or -1 for error
+ int ReadRestOfFile(AString & a_Contents);
+
+ // tolua_begin
+
+ /// Returns true if the file specified exists
+ static bool Exists(const AString & a_FileName);
+
+ /// Deletes a file, returns true if successful
+ static bool Delete(const AString & a_FileName);
+
+ /// Renames a file or folder, returns true if successful. May fail if dest already exists (libc-dependant)!
+ static bool Rename(const AString & a_OrigPath, const AString & a_NewPath);
+
+ /// Copies a file, returns true if successful.
+ static bool Copy(const AString & a_SrcFileName, const AString & a_DstFileName);
+
+ /// Returns true if the specified path is a folder
+ static bool IsFolder(const AString & a_Path);
+
+ /// Returns true if the specified path is a regular file
+ static bool IsFile(const AString & a_Path);
+
+ /// Returns the size of the file, or a negative number on error
+ static int GetSize(const AString & a_FileName);
+
+ /// Creates a new folder with the specified name. Returns true if successful. Path may be relative or absolute
+ static bool CreateFolder(const AString & a_FolderPath);
+
+ // tolua_end
+
+ int Printf(const char * a_Fmt, ...);
+
+private:
+ #ifdef USE_STDIO_FILE
+ FILE * m_File;
+ #else
+ HANDLE m_File;
+ #endif
+} ; // tolua_export
+
+
+
+