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Diffstat (limited to 'ace/Malloc.h')
| -rw-r--r-- | ace/Malloc.h | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/ace/Malloc.h b/ace/Malloc.h deleted file mode 100644 index 0036b4ee7cb..00000000000 --- a/ace/Malloc.h +++ /dev/null @@ -1,217 +0,0 @@ -/* -*- C++ -*- */ -// $Id$ - - -// ============================================================================ -// -// = LIBRARY -// ace -// -// = FILENAME -// Malloc.h -// -// = AUTHOR -// Doug Schmidt and Irfan Pyarali -// -// ============================================================================ - -#if !defined (ACE_MALLOC_H) -#define ACE_MALLOC_H - -#include "ace/ACE.h" - -class ACE_Export ACE_Allocator - // = TITLE - // Interface for a dynamic memory allocator that uses inheritance - // and dynamic binding to provide extensible mechanisms for - // allocating and deallocating memory. -{ -public: - // = Memory Management - - virtual void *malloc (size_t nbytes) = 0; - // Allocate <nbytes>, but don't give them any initial value. - - virtual void *calloc (size_t nbytes, char initial_value = '\0') = 0; - // Allocate <nbytes>, giving them <initial_value>. - - virtual void free (void *ptr) = 0; - // Free <ptr> (must have been allocated by <ACE_Allocator::malloc>). - - virtual int remove (void) = 0; - // Remove any resources associated with this memory manager. - - // = Map manager like functions - - virtual int bind (const char *name, void *pointer, int duplicates = 0) = 0; - // Associate <name> with <pointer>. If <duplicates> == 0 then do - // not allow duplicate <name>/<pointer> associations, else if - // <duplicates> != 0 then allow duplicate <name>/<pointer> - // assocations. Returns 0 if successfully binds (1) a previously - // unbound <name> or (2) <duplicates> != 0, returns 1 if trying to - // bind a previously bound <name> and <duplicates> == 0, else - // returns -1 if a resource failure occurs. - - virtual int trybind (const char *name, void *&pointer) = 0; - // Associate <name> with <pointer>. Does not allow duplicate - // <name>/<pointer> associations. Returns 0 if successfully binds - // (1) a previously unbound <name>, 1 if trying to bind a previously - // bound <name>, or returns -1 if a resource failure occurs. When - // this call returns <pointer>'s value will always reference the - // void * that <name> is associated with. Thus, if the caller needs - // to use <pointer> (e.g., to free it) a copy must be maintained by - // the caller. - - virtual int find (const char *name, void *&pointer) = 0; - // Locate <name> and pass out parameter via pointer. If found, - // return 0, Returns -1 if failure occurs. - - virtual int find (const char *name) = 0; - // returns 0 if the name is in the mapping. -1, otherwise. - - virtual int unbind (const char *name) = 0; - // Unbind (remove) the name from the map. Don't return the pointer - // to the caller - - virtual int unbind (const char *name, void *&pointer) = 0; - // Break any association of name. Returns the value of pointer in - // case the caller needs to deallocate memory. - - // = Protection and "sync" (i.e., flushing memory to persistent - // backing store). - - virtual int sync (ssize_t len = -1, int flags = MS_SYNC) = 0; - // Sync <len> bytes of the memory region to the backing store - // starting at <this->base_addr_>. If <len> == -1 then sync the - // whole region. - - virtual int sync (void *addr, size_t len, int flags = MS_SYNC) = 0; - // Sync <len> bytes of the memory region to the backing store - // starting at <addr_>. - - virtual int protect (ssize_t len = -1, int prot = PROT_RDWR) = 0; - // Change the protection of the pages of the mapped region to <prot> - // starting at <this->base_addr_> up to <len> bytes. If <len> == -1 - // then change protection of all pages in the mapped region. - - virtual int protect (void *addr, size_t len, int prot = PROT_RDWR) = 0; - // Change the protection of the pages of the mapped region to <prot> - // starting at <addr> up to <len> bytes. - - virtual void dump (void) const = 0; - // Dump the state of the object. -}; - -typedef long ACE_Malloc_Align; -// For alignment to long boundary - -union ACE_Export ACE_Malloc_Header -// TITLE -// This is a block header. -{ - struct ACE_Malloc_Control_Block - { - ACE_Malloc_Header *next_block_; - // Points to next block if on free list. - size_t size_; - // Size of this block. - } s_; - - ACE_Malloc_Align x_; - // Force alignment. -}; - -class ACE_Export ACE_Name_Node - // = TITLE - // This is stored as a linked list within the Memory_Pool - // to allow "named memory chunks." -{ -public: - // = Initialization methods. - ACE_Name_Node (const char *name, void *, ACE_Name_Node *); - ACE_Name_Node (void); - - char *name_; - // Name of the Node. - - void *pointer_; - // Pointer to the contents. - - ACE_Name_Node *next_; - // Pointer to the next node in the chain. - - void dump (void) const; - // Dump the state of the object. -}; - -class ACE_Export ACE_Control_Block - // = TITLE - // This information is stored in memory allocated by the MEMORY_POOL. - // - // = DESCRIPTION - // This class should be local to class ACE_Malloc, but cfront and - // G++ don't like nested classes in templates... -{ -public: - ACE_Name_Node *name_head_; - // Head of the linked list of Name Nodes. - - ACE_Malloc_Header *freep_; - // Current head of the freelist. - - char lock_name_[MAXNAMELEN]; - // Name of lock thats ensures mutual exclusion. - -#if defined (ACE_MALLOC_STATS) - // Keep statistics about ACE_Malloc state and performance. - ACE_Malloc_Stats malloc_stats_; -#endif /* ACE_MALLOC_STATS */ - - ACE_Malloc_Header base_; - // Dummy node used to anchor the freelist. - - void dump (void) const; - // Dump the state of the object. -}; - -#if defined (ACE_MALLOC_STATS) -#include "ace/Synch_T.h" -#if defined (ACE_HAS_THREADS) -#define ACE_PROCESS_MUTEX ACE_Process_Mutex -#else -#include "ace/SV_Semaphore_Simple.h" -#define ACE_PROCESS_MUTEX ACE_SV_Semaphore_Simple -#endif /* ACE_HAS_THREADS */ - -typedef ACE_Atomic_Op<ACE_PROCESS_MUTEX, int> ACE_INT; - -struct ACE_Export ACE_Malloc_Stats -// TITLE -// This keeps stats on the usage of the memory manager. -{ - ACE_Malloc_Stats (void); - void dump (void) const; - - ACE_INT nchunks_; - // Coarse-grained unit of allocation. - - ACE_INT nblocks_; - // Fine-grained unit of allocation. - - ACE_INT ninuse_; - // Number of blocks in use -}; -#define AMS(X) X -#else -#define AMS(X) -#endif /* ACE_MALLOC_STATS */ - -#if defined (__ACE_INLINE__) -#include "ace/Malloc.i" -#endif /* __ACE_INLINE__ */ - -// Include the ACE_Malloc templates and ACE_Memory_Pool classes at this point. -#include "ace/Malloc_T.h" -#include "ace/Memory_Pool.h" - -#endif /* ACE_MALLOC_H */ |