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Diffstat (limited to 'ace/Mem_Map.h')
| -rw-r--r-- | ace/Mem_Map.h | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/ace/Mem_Map.h b/ace/Mem_Map.h deleted file mode 100644 index f08578d8f64..00000000000 --- a/ace/Mem_Map.h +++ /dev/null @@ -1,203 +0,0 @@ -/* -*- C++ -*- */ -// $Id$ - -// ============================================================================ -// -// = LIBRARY -// ace -// -// = FILENAME -// Mem_Map.h -// -// = AUTHOR -// Doug Schmidt -// -// ============================================================================ - -#if !defined (ACE_MEM_MAP_H) -#define ACE_MEM_MAP_H - -#include "ace/ACE.h" - -class ACE_Export ACE_Mem_Map -{ - // = TITLE - // C++ interface OS memory mapping system call. - // - // = DESCRIPTION - // This class works with both the mmap(2) UNIX system and the - // Win32 family of memory mapping system calls. -public: - // = Initialization and termination methods. - - ACE_Mem_Map (void); - // Default constructor. - - ACE_Mem_Map (ACE_HANDLE handle, - int length = -1, - int prot = PROT_RDWR, - int share = ACE_MAP_PRIVATE, - void *addr = 0, - off_t pos = 0, - LPSECURITY_ATTRIBUTES sa = 0); - // Map a file from an open file descriptor <handle>. This function - // will lookup the length of the file if it is not given. - - ACE_Mem_Map (LPCTSTR filename, - int len = -1, - int flags = O_RDWR | O_CREAT, - int mode = ACE_DEFAULT_FILE_PERMS, - int prot = PROT_RDWR, - int share = ACE_MAP_PRIVATE, - void *addr = 0, - off_t pos = 0, - LPSECURITY_ATTRIBUTES sa = 0); - // Map a file specified by <file_name>. - - int map (ACE_HANDLE handle, - int length = -1, - int prot = PROT_RDWR, - int share = ACE_MAP_PRIVATE, - void *addr = 0, - off_t pos = 0, - LPSECURITY_ATTRIBUTES sa = 0); - // Map a file from an open file descriptor <handle>. This function - // will lookup the length of the file if it is not given. - - int map (int length = -1, - int prot = PROT_RDWR, - int share = ACE_MAP_PRIVATE, - void *addr = 0, - off_t pos = 0, - LPSECURITY_ATTRIBUTES sa = 0); - // Remap the file associated with <handle_>. - - int map (LPCTSTR filename, - int len = -1, - int flags = O_RDWR | O_CREAT, - int mode = ACE_DEFAULT_FILE_PERMS, - int prot = PROT_RDWR, - int share = ACE_MAP_PRIVATE, - void *addr = 0, - off_t pos = 0, - LPSECURITY_ATTRIBUTES sa = 0); - // Map a file specified by <filename>. - - ~ACE_Mem_Map (void); - // Destructor. - - int open (LPCTSTR filename, - int flags = O_RDWR | O_CREAT, - int mode = ACE_DEFAULT_FILE_PERMS, - LPSECURITY_ATTRIBUTES sa = 0); - // Open the file without mapping it. - - int close (void); - // Close down the <handle_> if necessary and unmap the mapping. - - int close_handle (void); - // Close down the <handle_> if necessary. - - int close_filemapping_handle (void); - // Close down the internal <file_mapping_> if necessary. This is - // mostly necessary on Win32, that has a different handle for - // file-mapping kernel object. - - int operator () (void *&addr); - // This operator passes back the starting address of the mapped - // file. - - void *addr (void) const; - // Return the base address. - - size_t size (void) const; - // This function returns the number of bytes currently mapped in the - // file. - - int unmap (int len = -1); - // Unmap the region starting at <base_addr_>. - - int unmap (void *addr, int len); - // Unmap the region starting at <addr_>. - - int sync (ssize_t len = -1, int flags = MS_SYNC); - // Sync <len> bytes of the memory region to the backing store - // starting at <base_addr_>. If <len> == -1 then sync the whole - // region. - - int sync (void *addr, size_t len, int flags = MS_SYNC); - // Sync <len> bytes of the memory region to the backing store - // starting at <addr_>. - - int protect (ssize_t len = -1, int prot = PROT_RDWR); - // Change the protection of the pages of the mapped region to <prot> - // starting at <base_addr_> up to <len> bytes. If <len> == -1 then - // change protection of all pages in the mapped region. - - int protect (void *addr, size_t len, int prot = PROT_RDWR); - // Change the protection of the pages of the mapped region to <prot> - // starting at <addr> up to <len> bytes. - - int remove (void); - // Close down and remove the file from the file system. - - int advise (int behavior, int len = -1); - // Hook into the underlying VM system. - - ACE_HANDLE handle (void) const; - // Return the underlying <handle_>. - - const TCHAR *filename (void) const; - // Return the name of file that is mapped (if any). - - void dump (void) const; - // Dump the state of an object. - - ACE_ALLOC_HOOK_DECLARE; - // Declare the dynamic allocation hooks. - -private: - void *base_addr_; - // Base address of the memory-mapped file. - - TCHAR filename_[MAXPATHLEN + 1]; - // Name of the file that is mapped. - - size_t length_; - // Length of the mapping. - - ACE_HANDLE handle_; - // HANDLE for the open file. - - ACE_HANDLE file_mapping_; - // HANDLE for the open mapping. - -#if defined (__Lynx__) - int write_enabled_; - // Flag to indicate that PROT_WRITE has been enabled. -#endif /* __Lynx__ */ - - int close_handle_; - // Keeps track of whether we need to close the handle. This is set - // if we opened the file. - - int map_it (ACE_HANDLE handle, - int len = -1, - int prot = PROT_RDWR, - int share = MAP_SHARED, - void *addr = 0, - off_t pos = 0, - LPSECURITY_ATTRIBUTES sa = 0); - // This method does the dirty work of actually calling ::mmap to map - // the file into memory. - - // = Disallow copying and assignment. - ACE_Mem_Map (const ACE_Mem_Map &); - void operator = (const ACE_Mem_Map &); -}; - -#if defined (__ACE_INLINE__) -#include "ace/Mem_Map.i" -#endif /* __ACE_INLINE__ */ - -#endif /* ACE_MEM_MAP_H */ |