Public Types |
typedef ACE_Shared_Memory_Pool_Options | OPTIONS |
Public Methods |
| ACE_Shared_Memory_Pool (const ACE_TCHAR *backing_store_name=0, const OPTIONS *options=0) |
| Initialize the pool. More...
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virtual | ~ACE_Shared_Memory_Pool (void) |
virtual void * | init_acquire (size_t nbytes, size_t &rounded_bytes, int &first_time) |
| Ask system for initial chunk of local memory. More...
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virtual void * | acquire (size_t nbytes, size_t &rounded_bytes) |
virtual int | release (int destroy=1) |
| Instruct the memory pool to release all of its resources. More...
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virtual int | sync (ssize_t len=-1, int flags=MS_SYNC) |
| Sync the memory region to the backing store starting at <this->base_addr_>. More...
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virtual int | sync (void *addr, size_t len, int flags=MS_SYNC) |
| Sync the memory region to the backing store starting at <addr_>. More...
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virtual int | protect (ssize_t len=-1, int prot=PROT_RDWR) |
virtual 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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virtual void * | base_addr (void) const |
| Return the base address of this memory pool, 0 if base_addr never changes. More...
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virtual 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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Protected Methods |
virtual size_t | round_up (size_t nbytes) |
| Implement the algorithm for rounding up the request to an appropriate chunksize. More...
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virtual int | commit_backing_store_name (size_t rounded_bytes, off_t &offset) |
virtual int | find_seg (const void *const searchPtr, off_t &offset, size_t &counter) |
| Find the segment that contains the searchPtr. More...
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virtual int | in_use (off_t &offset, size_t &counter) |
| Determine how much memory is currently in use. More...
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virtual int | handle_signal (int signum, siginfo_t *, ucontext_t *) |
| Handle SIGSEGV and SIGBUS signals to remap shared memory properly. More...
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Protected Attributes |
void * | base_addr_ |
size_t | file_perms_ |
| File permissions to use when creating/opening a segment. More...
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size_t | max_segments_ |
| Number of shared memory segments in the <SHM_TABLE> table. More...
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off_t | minimum_bytes_ |
| What the minimim bytes of the initial segment should be. More...
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size_t | segment_size_ |
| Shared memory segment size. More...
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key_t | base_shm_key_ |
| Base shared memory key for the segment. More...
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ACE_Sig_Handler | signal_handler_ |
| Handles SIGSEGV. More...
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