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