maci::LibraryManager

maci::LibraryManager −

#include <maciLibraryManager.h>

Classes

struct LibraryInfo

Structure to store data about loaded libraries.

Public Types

typedef bool(* DLLOpenFunc )(int argc, char *argv[])

typedef void(* DLLCloseFunc )(void)

typedef void(* DLLSetupCORBAFunc )(CORBA::ORB_ptr m_orb, PortableServer::POAManager_ptr m_poaManager, PortableServer::POA_ptr m_poaRoot, PortableServer::POA_ptr m_poaPersistent, PortableServer::POA_ptr m_poaTransient)

typedef void(* DLLInitThreadsFunc )(InitThreadFunc initFunc, DoneThreadFunc doneFunc)

Public Member Functions

LibraryManager ()

~LibraryManager ()

void setSearchPath (const char *path)

const char * getSearchPath ()

void closeAllLibraries (bool inform=true)

char * locateLibrary (const char *name)

void lock (int h)

void unlock (int h)

int load (const char *path, int argc=0, char *argv[]=0)

void unload (int h)

void unload (const char *name)

void * getSymbol (int h, const char *symbol)

bool setupCORBAinDLL (int handle, CORBA::ORB_ptr m_orb, PortableServer::POAManager_ptr m_poaManager, PortableServer::POA_ptr m_poaRoot, PortableServer::POA_ptr m_poaPersistent, PortableServer::POA_ptr m_poaTransient)

bool initThreadsInDLL (int handle, InitThreadFunc initFunc, DoneThreadFunc doneFunc)

Private Member Functions

int ldfind (const ACE_TCHAR filename[], ACE_TCHAR pathname[], size_t maxpathnamelen)

Logging::Logger::LoggerSmartPtr getLogger ()

Private Attributes

Registrar< int, LibraryInfo > m_libraries

Data about all loadrd libraries.

char * m_path

Search path.

ACE_Recursive_Thread_Mutex mutex

Thread synchornization mutex.

Logging::Logger::LoggerSmartPtr logger_m

Logger for this container;.

Class responsible of loading/unloading of dynamic-linked/shared libraries

typedef void(* maci::LibraryManager::DLLCloseFunc)(void) Declaration of the DLLClose function. A DLL that expects to be unloaded by the DLL Manager can export a function named ’DLLClose’. The DLL Manager then invokes this function just before it unloads the DLL.

typedef void(* maci::LibraryManager::DLLInitThreadsFunc)(InitThreadFunc initFunc, DoneThreadFunc doneFunc) Declaration of the DLLInitThreads function. A DLL that expects to be loaded by the DLL Manager can export a function named ’DLLInitThreads’. The DLL Manager then invokes this function just after it loads the DLL.

Parameters:

m_orb
m_poaRoot
m_poaPersistent

typedef bool(* maci::LibraryManager::DLLOpenFunc)(int argc, char *argv[]) Declaration of the DLLOpen function. A DLL that expects to be loaded by the DLL Manager can export a function named ’DLLOpen’. The DLL Manager then invokes this function just after it loads the DLL.

Parameters:

argc number of arguments
argv array of arguments

Returns:

false on initialization failure (false indicates that DLL will be unloaded).

typedef void(* maci::LibraryManager::DLLSetupCORBAFunc)(CORBA::ORB_ptr m_orb, PortableServer::POAManager_ptr m_poaManager, PortableServer::POA_ptr m_poaRoot, PortableServer::POA_ptr m_poaPersistent, PortableServer::POA_ptr m_poaTransient) Declaration of the DLLSetupCORBA function. A DLL that expects to be loaded by the DLL Manager can export a function named ’DLLSetupCORBA’. The DLL Manager then invokes this function just after it loads the DLL.

Parameters:

m_orb
m_poaRoot
m_poaPersistent

maci::LibraryManager::LibraryManager () Constructor

maci::LibraryManager::~LibraryManager () Destructor

void maci::LibraryManager::closeAllLibraries (bool inform = true) Close all currently opened libraries

Parameters:

inform if true DLLClose function will be called

Logging::Logger::LoggerSmartPtr maci::LibraryManager::getLogger () [inline, private] Returns an ACS Logger created for this container.

Returns:

an ACS Logger

References logger_m.

const char* maci::LibraryManager::getSearchPath () [inline] Get path where to libraries can be found

Parameters:

path

References m_path.

void* maci::LibraryManager::getSymbol (int h, const char * symbol) Resolves symbol from the library

Parameters:

handle given by open method

See also:

open

bool maci::LibraryManager::initThreadsInDLL (int handle, InitThreadFunc initFunc, DoneThreadFunc doneFunc) Calls ’DLLInitThreads’ in library with specified handle

Parameters:

handle
initFunc pointer to function
doneFunc pointer to function

Returns:

true if successful

int maci::LibraryManager::ldfind (const ACE_TCHAR filename[], ACE_TCHAR pathname[], size_t maxpathnamelen) [private] Search throuh search path(s) for library with given name

Parameters:

filename library name
pathname found path to the library

Returns:

0 on success, -1 on failure

int maci::LibraryManager::load (const char * path, int argc = 0, char * argv[] = 0) Loads library

Parameters:

path
argc
argv

char* maci::LibraryManager::locateLibrary (const char * name) Get path of given library (e.g. ps returns /usr/lib/libps.so)

Parameters:

name ’core’ name of the library

void maci::LibraryManager::lock (int h) Lock library (increase reference counter)

Parameters:

handle given by open method

See also:

open

void maci::LibraryManager::setSearchPath (const char * path) Set path where to libraries can be found

Parameters:

path

bool maci::LibraryManager::setupCORBAinDLL (int handle, CORBA::ORB_ptr m_orb, PortableServer::POAManager_ptr m_poaManager, PortableServer::POA_ptr m_poaRoot, PortableServer::POA_ptr m_poaPersistent, PortableServer::POA_ptr m_poaTransient) Calls ’DLLSetupCORBA’ in library with specified handle

Parameters:

handle
m_orb
m_poaRoot
m_poaPersistent

Returns:

true if successful

void maci::LibraryManager::unload (const char * name) Forces to unload the library (ignoring existing references to this library)

void maci::LibraryManager::unload (int h) Forces to unload the library (ignoring existing references to this library)

void maci::LibraryManager::unlock (int h) Unlock library (decrease reference counter)

Parameters:

handle given by open method

See also:

open

Logging::Logger::LoggerSmartPtr maci::LibraryManager::logger_m [private]

Logger for this container;.

Referenced by getLogger().

Registrar<int, LibraryInfo> maci::LibraryManager::m_libraries [private]

Data about all loadrd libraries.

char* maci::LibraryManager::m_path [private]

Search path.

Referenced by getSearchPath().

ACE_Recursive_Thread_Mutex maci::LibraryManager::mutex [private]

Thread synchornization mutex.

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