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