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-rw-r--r--source/cFile.cpp542
1 files changed, 271 insertions, 271 deletions
diff --git a/source/cFile.cpp b/source/cFile.cpp
index cd61800e2..32de28fe0 100644
--- a/source/cFile.cpp
+++ b/source/cFile.cpp
@@ -1,271 +1,271 @@
-
-// cFile.cpp
-
-// Implements the cFile class providing an OS-independent abstraction of a file.
-
-#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
-
-#include "cFile.h"
-
-
-
-
-
-
-/// Simple constructor - creates an unopened file object, use Open() to open / create a real file
-cFile::cFile(void) :
- #ifdef USE_STDIO_FILE
- m_File(NULL)
- #else
- m_File(INVALID_HANDLE_VALUE)
- #endif // USE_STDIO_FILE
-{
- // Nothing needed yet
-}
-
-
-
-
-
-/// Constructs and opens / creates the file specified, use IsOpen() to check for success
-cFile::cFile(const AString & iFileName, EMode iMode) :
- #ifdef USE_STDIO_FILE
- m_File(NULL)
- #else
- m_File(INVALID_HANDLE_VALUE)
- #endif // USE_STDIO_FILE
-{
- Open(iFileName, iMode);
-}
-
-
-
-
-
-/// Auto-closes the file, if open
-cFile::~cFile()
-{
- if (IsOpen())
- {
- Close();
- }
-}
-
-
-
-
-
-bool cFile::Open(const AString & iFileName, EMode iMode)
-{
- ASSERT(!IsOpen()); // You should close the file before opening another one
-
- if (IsOpen())
- {
- Close();
- }
-
- const char * Mode = NULL;
- switch (iMode)
- {
- case fmRead: Mode = "rb"; break;
- case fmWrite: Mode = "wb"; break;
- case fmReadWrite: Mode = "rb+"; break;
- default:
- {
- ASSERT(!"Unhandled file mode");
- return false;
- }
- }
- m_File = fopen(iFileName.c_str(), Mode);
- if ((m_File == NULL) && (iMode == fmReadWrite))
- {
- // Fix for MS not following C spec, opening "a" mode files for writing at the end only
- // The file open operation has been tried with "read update", fails if file not found
- // So now we know either the file doesn't exist or we don't have rights, no need to worry about file contents.
- // Simply re-open for read-writing, erasing existing contents:
- m_File = fopen(iFileName.c_str(), "wb+");
- }
- return (m_File != NULL);
-}
-
-
-
-
-
-void cFile::Close(void)
-{
- ASSERT(IsOpen()); // You should not close file objects that don't have an open file.
-
- if (!IsOpen())
- {
- return;
- }
-
- fclose(m_File);
- m_File = NULL;
-}
-
-
-
-
-
-bool cFile::IsOpen(void) const
-{
- return (m_File != NULL);
-}
-
-
-
-
-
-bool cFile::IsEOF(void) const
-{
- ASSERT(IsOpen());
-
- if (!IsOpen())
- {
- // Unopened files behave as at EOF
- return true;
- }
-
- return (feof(m_File) != 0);
-}
-
-
-
-
-
-/// Reads up to iNumBytes bytes into iBuffer, returns the number of bytes actually read, or -1 on failure; asserts if not open
-int cFile::Read (void * iBuffer, int iNumBytes)
-{
- ASSERT(IsOpen());
-
- if (!IsOpen())
- {
- return -1;
- }
-
- return fread(iBuffer, 1, iNumBytes, m_File); // fread() returns the portion of Count parameter actually read, so we need to send iNumBytes as Count
-}
-
-
-
-
-
-/// Writes up to iNumBytes bytes from iBuffer, returns the number of bytes actually written, or -1 on failure; asserts if not open
-int cFile::Write(const void * iBuffer, int iNumBytes)
-{
- ASSERT(IsOpen());
-
- if (!IsOpen())
- {
- return -1;
- }
-
- int res = fwrite(iBuffer, 1, iNumBytes, m_File); // fwrite() returns the portion of Count parameter actually written, so we need to send iNumBytes as Count
- return res;
-}
-
-
-
-
-
-/// Seeks to iPosition bytes from file start, returns old position or -1 for failure
-int cFile::Seek (int iPosition)
-{
- ASSERT(IsOpen());
-
- if (!IsOpen())
- {
- return -1;
- }
-
- if (fseek(m_File, iPosition, SEEK_SET) != 0)
- {
- return -1;
- }
- return ftell(m_File);
-}
-
-
-
-
-
-
-/// Returns the current position (bytes from file start)
-int cFile::Tell (void) const
-{
- ASSERT(IsOpen());
-
- if (!IsOpen())
- {
- return -1;
- }
-
- return ftell(m_File);
-}
-
-
-
-
-
-/// Returns the size of file, in bytes, or -1 for failure; asserts if not open
-int cFile::GetSize(void) const
-{
- ASSERT(IsOpen());
-
- if (!IsOpen())
- {
- return -1;
- }
-
- int CurPos = ftell(m_File);
- if (CurPos < 0)
- {
- return -1;
- }
- if (fseek(m_File, 0, SEEK_END) != 0)
- {
- return -1;
- }
- int res = ftell(m_File);
- if (fseek(m_File, CurPos, SEEK_SET) != 0)
- {
- return -1;
- }
- return res;
-}
-
-
-
-
-
-int cFile::ReadRestOfFile(AString & a_Contents)
-{
- ASSERT(IsOpen());
-
- if (!IsOpen())
- {
- return -1;
- }
-
- int DataSize = GetSize() - Tell();
-
- // HACK: This depends on the internal knowledge that AString's data() function returns the internal buffer directly
- a_Contents.assign(DataSize, '\0');
- return Read((void *)a_Contents.data(), DataSize);
-}
-
-
-
-
-
-bool cFile::Exists(const AString & a_FileName)
-{
- cFile test(a_FileName, fmRead);
- return test.IsOpen();
-}
-
-
-
-
+
+// cFile.cpp
+
+// Implements the cFile class providing an OS-independent abstraction of a file.
+
+#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
+
+#include "cFile.h"
+
+
+
+
+
+
+/// Simple constructor - creates an unopened file object, use Open() to open / create a real file
+cFile::cFile(void) :
+ #ifdef USE_STDIO_FILE
+ m_File(NULL)
+ #else
+ m_File(INVALID_HANDLE_VALUE)
+ #endif // USE_STDIO_FILE
+{
+ // Nothing needed yet
+}
+
+
+
+
+
+/// Constructs and opens / creates the file specified, use IsOpen() to check for success
+cFile::cFile(const AString & iFileName, EMode iMode) :
+ #ifdef USE_STDIO_FILE
+ m_File(NULL)
+ #else
+ m_File(INVALID_HANDLE_VALUE)
+ #endif // USE_STDIO_FILE
+{
+ Open(iFileName, iMode);
+}
+
+
+
+
+
+/// Auto-closes the file, if open
+cFile::~cFile()
+{
+ if (IsOpen())
+ {
+ Close();
+ }
+}
+
+
+
+
+
+bool cFile::Open(const AString & iFileName, EMode iMode)
+{
+ ASSERT(!IsOpen()); // You should close the file before opening another one
+
+ if (IsOpen())
+ {
+ Close();
+ }
+
+ const char * Mode = NULL;
+ switch (iMode)
+ {
+ case fmRead: Mode = "rb"; break;
+ case fmWrite: Mode = "wb"; break;
+ case fmReadWrite: Mode = "rb+"; break;
+ default:
+ {
+ ASSERT(!"Unhandled file mode");
+ return false;
+ }
+ }
+ m_File = fopen(iFileName.c_str(), Mode);
+ if ((m_File == NULL) && (iMode == fmReadWrite))
+ {
+ // Fix for MS not following C spec, opening "a" mode files for writing at the end only
+ // The file open operation has been tried with "read update", fails if file not found
+ // So now we know either the file doesn't exist or we don't have rights, no need to worry about file contents.
+ // Simply re-open for read-writing, erasing existing contents:
+ m_File = fopen(iFileName.c_str(), "wb+");
+ }
+ return (m_File != NULL);
+}
+
+
+
+
+
+void cFile::Close(void)
+{
+ ASSERT(IsOpen()); // You should not close file objects that don't have an open file.
+
+ if (!IsOpen())
+ {
+ return;
+ }
+
+ fclose(m_File);
+ m_File = NULL;
+}
+
+
+
+
+
+bool cFile::IsOpen(void) const
+{
+ return (m_File != NULL);
+}
+
+
+
+
+
+bool cFile::IsEOF(void) const
+{
+ ASSERT(IsOpen());
+
+ if (!IsOpen())
+ {
+ // Unopened files behave as at EOF
+ return true;
+ }
+
+ return (feof(m_File) != 0);
+}
+
+
+
+
+
+/// Reads up to iNumBytes bytes into iBuffer, returns the number of bytes actually read, or -1 on failure; asserts if not open
+int cFile::Read (void * iBuffer, int iNumBytes)
+{
+ ASSERT(IsOpen());
+
+ if (!IsOpen())
+ {
+ return -1;
+ }
+
+ return fread(iBuffer, 1, iNumBytes, m_File); // fread() returns the portion of Count parameter actually read, so we need to send iNumBytes as Count
+}
+
+
+
+
+
+/// Writes up to iNumBytes bytes from iBuffer, returns the number of bytes actually written, or -1 on failure; asserts if not open
+int cFile::Write(const void * iBuffer, int iNumBytes)
+{
+ ASSERT(IsOpen());
+
+ if (!IsOpen())
+ {
+ return -1;
+ }
+
+ int res = fwrite(iBuffer, 1, iNumBytes, m_File); // fwrite() returns the portion of Count parameter actually written, so we need to send iNumBytes as Count
+ return res;
+}
+
+
+
+
+
+/// Seeks to iPosition bytes from file start, returns old position or -1 for failure
+int cFile::Seek (int iPosition)
+{
+ ASSERT(IsOpen());
+
+ if (!IsOpen())
+ {
+ return -1;
+ }
+
+ if (fseek(m_File, iPosition, SEEK_SET) != 0)
+ {
+ return -1;
+ }
+ return ftell(m_File);
+}
+
+
+
+
+
+
+/// Returns the current position (bytes from file start)
+int cFile::Tell (void) const
+{
+ ASSERT(IsOpen());
+
+ if (!IsOpen())
+ {
+ return -1;
+ }
+
+ return ftell(m_File);
+}
+
+
+
+
+
+/// Returns the size of file, in bytes, or -1 for failure; asserts if not open
+int cFile::GetSize(void) const
+{
+ ASSERT(IsOpen());
+
+ if (!IsOpen())
+ {
+ return -1;
+ }
+
+ int CurPos = ftell(m_File);
+ if (CurPos < 0)
+ {
+ return -1;
+ }
+ if (fseek(m_File, 0, SEEK_END) != 0)
+ {
+ return -1;
+ }
+ int res = ftell(m_File);
+ if (fseek(m_File, CurPos, SEEK_SET) != 0)
+ {
+ return -1;
+ }
+ return res;
+}
+
+
+
+
+
+int cFile::ReadRestOfFile(AString & a_Contents)
+{
+ ASSERT(IsOpen());
+
+ if (!IsOpen())
+ {
+ return -1;
+ }
+
+ int DataSize = GetSize() - Tell();
+
+ // HACK: This depends on the internal knowledge that AString's data() function returns the internal buffer directly
+ a_Contents.assign(DataSize, '\0');
+ return Read((void *)a_Contents.data(), DataSize);
+}
+
+
+
+
+
+bool cFile::Exists(const AString & a_FileName)
+{
+ cFile test(a_FileName, fmRead);
+ return test.IsOpen();
+}
+
+
+
+