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.
mapped_array(const char *name, unsigned number)
Construct mapped vector array of typed objects.
T * operator()(unsigned member)
Get typed pointer to member object of vector in mapped segment.
void release(T *object)
Used to release a typed object back to the reuse typed object pool.
T * request(void)
Request a typed reusable object from the free list or mapped space.
T & operator[](unsigned member)
Reference typed object of vector in mapped segment.
volatile const T * operator()(unsigned member)
Access typed member object in the mapped segment.
ReusableObject * getTimed(timeout_t timeout)
Request a reusable object from the free list or mapped space.
void removeLocked(ReusableObject *object)
Used to return an object to the reuse pool when the mutex lock is already held.
bool copy(size_t offset, void *buffer, size_t size) const
Copy memory from specific offset within the mapped memory segment.
const struct sockaddr * addr(Socket::address &address)
A convenience function to convert a socket address list into a socket address.
bool avail(void) const
Check whether there are objects available to be allocated.
void create(const char *name, size_t size=(size_t) 0)
Supporting function to construct a new or access an existing shared memory segment.
mapped_view(const char *name)
Map existing named memory segment.
T * getLocked(void)
Used to get a typed object from the reuse pool when the mutex lock is already held.
T * getTimed(timeout_t timeout)
Request a typed reusable object from the free list or mapped space.
T * pos(size_t member)
Get typed object from a specific member offset within the mapped segment.
ReusableObject * get(void)
Request a reusable object from the free list or mapped space.
unsigned max(void) const
Get member size of typed objects that can be held in mapped vector.
T * operator*()
Request a typed reusable object from the free list or mapped space by pointer reference.
Reusable objects for forming private heaps.
unsigned count(void) const
Get count of typed member objects held in this map.
bool operator!() const
Test if map is inactive.
Class to access a named mapped segment published from another process.
Common namespace for all ucommon objects.
Thread classes and sychronization objects.
void initialize(void)
Initialize typed data in mapped array.
ReusableObject * request(void)
Request a reusable object from the free list or mapped space.
volatile const T & operator[](unsigned member)
Reference typed member object in the mapped segment.
void removeLocked(T *object)
Used to return a typed object to the reuse pool when the mutex lock is already held.
void * addLock(void)
Add mapped space while holding lock for one object.
Generic non-recursive exclusive lock class.
void initialize(void)
Initialize typed data in mapped array.
Map a reusable allocator over a named shared memory segment.
A common string class and character string support functions.
size_t len(void) const
Get size of mapped segment.
T * get(void)
Request a typed reusable object from the free list or mapped space.
Class for resource bound memory pools between threads.
T copy(const T &src)
Convenience function to copy objects.
Template class to map typed reusable objects into shared memory heap.
void * offset(size_t offset) const
Get memory from a specific offset within the mapped memory segment.
T * operator()(void)
Allocate mapped space for one object.
Construct or access a named section of memory.
ReusableObject * getLocked(void)
Used to get an object from the reuse pool when the mutex lock is already held.
mapped_reuse(const char *name, unsigned number)
Construct mapped reuse array of typed objects.
Linked objects, lists, templates, and containers.
Template class to map typed vector into shared memory.
void release(ReusableObject *object)
Release resuable object.