Public Methods |
| ACE_Mem_Map (void) |
| Default constructor. More...
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| ACE_Mem_Map (ACE_HANDLE handle, int length=-1, int prot=PROT_RDWR, int share=ACE_MAP_PRIVATE, void *addr=0, off_t offset=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. More...
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| ACE_Mem_Map (const ACE_TCHAR *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 offset=0, LPSECURITY_ATTRIBUTES sa=0) |
| Map a file specified by <file_name>. More...
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int | map (ACE_HANDLE handle, int length=-1, int prot=PROT_RDWR, int share=ACE_MAP_PRIVATE, void *addr=0, off_t offset=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. More...
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int | map (int length=-1, int prot=PROT_RDWR, int share=ACE_MAP_PRIVATE, void *addr=0, off_t offset=0, LPSECURITY_ATTRIBUTES sa=0) |
| Remap the file associated with <handle_>. More...
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int | map (const ACE_TCHAR *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 offset=0, LPSECURITY_ATTRIBUTES sa=0) |
| Map a file specified by <filename>. More...
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| ~ACE_Mem_Map (void) |
| Destructor. More...
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int | open (const ACE_TCHAR *filename, int flags=O_RDWR|O_CREAT, int mode=ACE_DEFAULT_FILE_PERMS, LPSECURITY_ATTRIBUTES sa=0) |
| Open the file without mapping it. More...
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int | close (void) |
| Close down the <handle_> if necessary and unmap the mapping. More...
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int | close_handle (void) |
| Close down the <handle_> if necessary. More...
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int | close_filemapping_handle (void) |
int | operator() (void *&addr) |
| This operator passes back the starting address of the mapped file. More...
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void * | addr (void) const |
| Return the base address. More...
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size_t | size (void) const |
| This function returns the number of bytes currently mapped in the file. More...
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int | unmap (int len=-1) |
| Unmap the region starting at <base_addr_>. More...
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int | unmap (void *addr, int len) |
| Unmap the region starting at <addr_>. More...
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int | sync (ssize_t len=-1, int flags=MS_SYNC) |
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_>. More...
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int | protect (ssize_t len=-1, int prot=PROT_RDWR) |
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. More...
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int | remove (void) |
| Close and remove the file from the file system. More...
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int | advise (int behavior, int len=-1) |
| Hook into the underlying VM system. More...
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ACE_HANDLE | handle (void) const |
| Return the underlying <handle_>. More...
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const ACE_TCHAR * | filename (void) const |
| Return the name of file that is mapped (if any). More...
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void | dump (void) const |
| Dump the state of an object. More...
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Public Attributes |
| ACE_ALLOC_HOOK_DECLARE |
| Declare the dynamic allocation hooks. More...
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Private Methods |
int | map_it (ACE_HANDLE handle, int len=-1, int prot=PROT_RDWR, int share=MAP_SHARED, void *addr=0, off_t offset=0, LPSECURITY_ATTRIBUTES sa=0) |
| This method does the dirty work of actually calling mmap to map the file into memory. More...
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| ACE_Mem_Map (const ACE_Mem_Map &) |
void | operator= (const ACE_Mem_Map &) |
Private Attributes |
void * | base_addr_ |
| Base address of the memory-mapped file. More...
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ACE_TCHAR | filename_ [MAXPATHLEN+1] |
| Name of the file that is mapped. More...
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size_t | length_ |
| Length of the mapping. More...
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ACE_HANDLE | handle_ |
| HANDLE for the open file. More...
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ACE_HANDLE | file_mapping_ |
| HANDLE for the open mapping. More...
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int | close_handle_ |
| Keeps track of whether we need to close the handle. This is set if we opened the file. More...
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This class works with both the mmap(2) UNIX system and the Win32 family of memory mapping system calls.