id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
1080,boost::interprocess win32 global file mapping issue,matroskin222@…,Ion Gaztañaga,"There is a serious bug in boost::interprocess library. It is unable to create global shared memory between services and simle applications. An exception is thrown ( m_err = 5, m_str = ""Access is denied"" )
I shortly investigated the way to fix this issue and found that call of CreateFileMappingA winAPI in winapi::create_file_mapping function sets lpAttributes parameter as NULL. To get rid of '''""Access is denied""''' error you can reimplement this function as:
''static inline void * create_file_mapping (void * handle, unsigned long access, unsigned long high_size, unsigned long low_size, const char * name)
{  
	SECURITY_ATTRIBUTES sa;
	SECURITY_DESCRIPTOR sd;

	InitializeSecurityDescriptor(&sd,SECURITY_DESCRIPTOR_REVISION);
	SetSecurityDescriptorDacl(&sd, true, NULL, false);

	sa.lpSecurityDescriptor = &sd;
	sa.nLength = sizeof(SECURITY_ATTRIBUTES);
	sa.bInheritHandle = FALSE;
	return CreateFileMappingA (handle, &sa, access, high_size, low_size, name);  
}''",Bugs,closed,Boost 1.45.0,interprocess,,Problem,fixed,interprocess global shared memory win32,