30 #ifndef _UCOMMON_MAPPED_H_ 31 #define _UCOMMON_MAPPED_H_ 33 #ifndef _UCOMMON_LINKED_H_ 37 #ifndef _UCOMMON_THREAD_H_ 41 #ifndef _UCOMMON_STRING_H_ 81 void create(
const char *name,
size_t size = (
size_t)0);
116 static void remove(
const char *name);
122 inline operator bool()
const 123 {
return (size != 0);}
130 {
return (size == 0);}
139 void *sbrk(
size_t size);
146 void *offset(
size_t offset)
const;
156 bool copy(
size_t offset,
void *buffer,
size_t size)
const;
162 inline size_t len(
void)
const 179 static void disable(
void);
203 inline void create(
const char *fname,
unsigned count)
219 MappedReuse(
const char *name,
size_t size,
unsigned count);
225 bool avail(
void)
const;
279 inline void create(
const char *fn,
unsigned members)
299 {
new((caddr_t)offset(0)) T[size /
sizeof(T)];}
306 {
return sbrk(
sizeof(T));}
314 {
return static_cast<T*
>(offset(member *
sizeof(T)));}
321 {
return static_cast<T*
>(sbrk(
sizeof(T)));}
329 {
return *(operator()(member));}
335 inline unsigned max(
void)
const 336 {
return (
unsigned)(size /
sizeof(T));}
372 {
new((caddr_t)pos(0)) T[size /
sizeof(T)];}
378 inline operator bool()
const 409 inline T *
pos(
size_t member)
489 {
return static_cast<const T*
>(offset(member *
sizeof(T)));}
497 {
return *(operator()(member));}
499 inline volatile const T *
get(
unsigned member)
500 {
return static_cast<const T*
>(offset(member *
sizeof(T)));}
502 inline void copy(
unsigned member, T& buffer)
510 {
return (
unsigned)(size /
sizeof(T));}
bool operator!() const
Check whether there are typed objects available to be allocated.
bool copy(size_t offset, void *buffer, size_t size) const
Copy memory from specific offset within the mapped memory segment.
unsigned max(void) const
Get member size of typed objects that can be held in mapped vector.
Class for resource bound memory pools between threads.
volatile const T & operator[](unsigned member)
Reference typed member object in the mapped segment.
size_t len(void) const
Get size of mapped segment.
void release(T *object)
Used to release a typed object back to the reuse typed object pool.
T copy(const T &src)
Convenience function to copy objects.
T * getTimed(timeout_t timeout)
Request a typed reusable object from the free list or mapped space.
Reusable objects for forming private heaps.
void removeLocked(ReusableObject *object)
Used to return an object to the reuse pool when the mutex lock is already held.
bool operator!() const
Test if map is inactive.
Thread classes and sychronization objects.
T * request(void)
Request a typed reusable object from the free list or mapped space.
Template class to map typed vector into shared memory.
ReusableObject * getLocked(void)
Used to get an object from the reuse pool when the mutex lock is already held.
ReusableObject * get(void)
Request a reusable object from the free list or mapped space.
T & operator[](unsigned member)
Reference typed object of vector in mapped segment.
Generic non-recursive exclusive lock class.
Class to access a named mapped segment published from another process.
Map a reusable allocator over a named shared memory segment.
void * offset(size_t offset) const
Get memory from a specific offset within the mapped memory segment.
T * operator*()
Request a typed reusable object from the free list or mapped space by pointer reference.
T * operator()(unsigned member)
Get typed pointer to member object of vector in mapped segment.
Template class to map typed reusable objects into shared memory heap.
void release(ReusableObject *object)
Release resuable object.
A common string class and character string support functions.
ReusableObject * request(void)
Request a reusable object from the free list or mapped space.
T * get(void)
Request a typed reusable object from the free list or mapped space.
bool avail(void) const
Check whether there are objects available to be allocated.
unsigned count(void) const
Get count of typed member objects held in this map.
Linked objects, lists, templates, and containers.
T * operator()(void)
Allocate mapped space for one object.
void initialize(void)
Initialize typed data in mapped array.
volatile const T * operator()(unsigned member)
Access typed member object in the mapped segment.
Common namespace for all ucommon objects.
void initialize(void)
Initialize typed data in mapped array.
mapped_view(const char *name)
Map existing named memory segment.
mapped_reuse(const char *name, unsigned number)
Construct mapped reuse array of typed objects.
void * addLock(void)
Add mapped space while holding lock for one object.
ReusableObject * getTimed(timeout_t timeout)
Request a reusable object from the free list or mapped space.
mapped_array(const char *name, unsigned number)
Construct mapped vector array of typed objects.
T * pos(size_t member)
Get typed object from a specific member offset within the mapped segment.
const struct sockaddr * addr(Socket::address &address)
A convenience function to convert a socket address list into a socket address.
void removeLocked(T *object)
Used to return a typed object to the reuse pool when the mutex lock is already held.
T * getLocked(void)
Used to get a typed object from the reuse pool when the mutex lock is already held.
void create(const char *name, size_t size=(size_t) 0)
Supporting function to construct a new or access an existing shared memory segment.
Construct or access a named section of memory.