NAME

ACE_Shared_Memory_SV - Shared memory wrapper based on System V shared memory.

SYNOPSIS

#include <ace/Shared_Memory_SV.h>

class ACE_Shared_Memory_SV : public ACE_Shared_Memory { public: enum{ ACE_CREATE = IPC_CREAT, ACE_OPEN = 0 }; ACE_Shared_Memory_SV (void); ACE_Shared_Memory_SV ( key_t id, int length, int create = ACE_Shared_Memory_SV::ACE_OPEN, int perms = ACE_DEFAULT_FILE_PERMS, void *addr = 0, int flags = 0 ); int open ( key_t id, int length, int create = ACE_Shared_Memory_SV::ACE_OPEN, int perms = ACE_DEFAULT_FILE_PERMS, void *addr = 0, int flags = 0 ); virtual int close (void); virtual int remove (void); virtual void *malloc (size_t = 0); virtual int free (void *p); virtual int get_segment_size (void) const; virtual ACE_HANDLE get_id (void) const; void dump (void) const; ACE_ALLOC_HOOK_DECLARE; private: ACE_SV_Shared_Memory shared_memory_; };

DESCRIPTION

This class provides a very simple-minded shared memory manager. For more a powerful memory allocator please see ACE_Malloc.

Initialization and termination methods.

ACE_Shared_Memory_SV (void);

ACE_Shared_Memory_SV (
    key_t id,
    int length,
    int create = ACE_Shared_Memory_SV::ACE_OPEN,
    int perms = ACE_DEFAULT_FILE_PERMS,
    void *addr = 0,
    int flags = 0
    );

int open (
    key_t id,
    int length,
    int create = ACE_Shared_Memory_SV::ACE_OPEN,
    int perms = ACE_DEFAULT_FILE_PERMS,
    void *addr = 0,
    int flags = 0
    );

virtual int close (void);

virtual int remove (void);

Allocation and deallocation methods.

virtual void *malloc (size_t = 0);

virtual int free (void *p);

virtual int get_segment_size (void) const;

virtual ACE_HANDLE get_id (void) const;

void dump (void) const;

ACE_ALLOC_HOOK_DECLARE;

AUTHOR

Doug Schmidt

LIBRARY

ace