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|
// Local_Name_Space_T.cpp
// $Id$
#if !defined (ACE_LOCAL_NAME_SPACE_T_C)
#define ACE_LOCAL_NAME_SPACE_T_C
#define ACE_BUILD_DLL
#include "ace/Log_Msg.h"
#include "ace/ACE.h"
#include "ace/Local_Name_Space.h"
template <class ALLOCATOR>
ACE_Name_Space_Map<ALLOCATOR>::ACE_Name_Space_Map (ALLOCATOR *alloc)
: MAP_MANAGER (alloc)
{
ACE_TRACE ("ACE_Name_Space_Map::ACE_Name_Space_Map");
}
template <class ALLOCATOR> int
ACE_Name_Space_Map<ALLOCATOR>::close (ALLOCATOR* alloc)
{
ACE_TRACE ("ACE_Name_Space_Map::close");
this->allocator_ = alloc;
return this->close_i ();
}
template <class ALLOCATOR> int
ACE_Name_Space_Map<ALLOCATOR>::bind (const ACE_NS_String &ext_id,
const ACE_NS_Internal &int_id,
ALLOCATOR *alloc)
{
ACE_TRACE ("ACE_Name_Space_Map::bind");
this->allocator_ = alloc;
return this->bind_i (ext_id, int_id);
}
template <class ALLOCATOR> int
ACE_Name_Space_Map<ALLOCATOR>::unbind (const ACE_NS_String &ext_id,
ACE_NS_Internal &int_id,
ALLOCATOR *alloc)
{
ACE_TRACE ("ACE_Name_Space_Map::unbind");
this->allocator_ = alloc;
return this->unbind_i (ext_id, int_id);
}
template <class ALLOCATOR> int
ACE_Name_Space_Map<ALLOCATOR>::rebind (const ACE_NS_String &ext_id,
const ACE_NS_Internal &int_id,
ACE_NS_String &old_ext_id,
ACE_NS_Internal &old_int_id,
ALLOCATOR *alloc)
{
ACE_TRACE ("ACE_Name_Space_Map::rebind");
this->allocator_ = alloc;
return this->rebind_i (ext_id, int_id, old_ext_id, old_int_id);
}
template <class ALLOCATOR> int
ACE_Name_Space_Map<ALLOCATOR>::find (const ACE_NS_String &ext_id,
ACE_NS_Internal &int_id,
ALLOCATOR *alloc)
{
ACE_TRACE ("ACE_Name_Space_Map::find");
this->allocator_ = alloc;
return this->find_i (ext_id, int_id);
}
#if defined (ACE_WIN32)
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::remap (EXCEPTION_POINTERS *ep)
{
ACE_TRACE ("ACE_Name_Space_Map::remap");
void *addr = (void *) ep->ExceptionRecord->ExceptionInformation[1];
// The following requires Memory Pool to have ::remap()
// defined. Thus currently this will only work for
// ACE_MMap_Memory_Pool.
if (this->allocator_->alloc ().memory_pool ().remap (addr) == -1)
// Kick it upstairs...
return (DWORD) EXCEPTION_CONTINUE_SEARCH;
#if __X86__
// This is 80x86-specific.
ep->ContextRecord->Edi = (DWORD) addr;
#elif __MIPS__
ep->ContextRecord->IntA0 =
ep->ContextRecord->IntV0 = (DWORD) addr;
ep->ContextRecord->IntT5 = ep->ContextRecord->IntA0 + 3;
#endif /* __X86__ */
// Resume execution at the original point of "failure."
return (DWORD) EXCEPTION_CONTINUE_EXECUTION;
}
#endif /* ACE_WIN32 */
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::shared_bind (const ACE_WString &name,
const ACE_WString &value,
const char *type,
int rebind)
{
// Note that we *must* use structured exception handling here
// because (1) we may need to commit virtual memory pages and (2)
// C++ exception handling doesn't support resumption.
ACE_SEH_TRY
{
return this->shared_bind_i (name, value, type, rebind);
}
ACE_SEH_EXCEPT (this->remap (GetExceptionInformation ()))
{
}
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::shared_bind_i (const ACE_WString &name,
const ACE_WString &value,
const char *type,
int rebind)
{
ACE_TRACE ("ACE_Local_Name_Space::shared_bind");
size_t name_len = (name.length () + 1) * sizeof (ACE_USHORT16);
size_t value_len = (value.length () + 1) * sizeof (ACE_USHORT16);
size_t type_len = ACE_OS::strlen (type) + 1;
size_t total_len = name_len + value_len + type_len;
char *ptr = (char *) this->allocator_->malloc (total_len);
if (ptr == 0)
return -1;
else
{
// Note that the value_rep *must* come first to make sure we can
// retrieve this pointer later on in unbind().
ACE_USHORT16 *value_rep = (ACE_USHORT16 *) (ptr);
ACE_USHORT16 *name_rep = (ACE_USHORT16 *) (ptr + value_len);
char *new_type = (char *) (ptr + value_len + name_len);
ACE_NS_String new_name (name_rep, name.fast_rep (), name_len);
ACE_NS_String new_value (value_rep, value.fast_rep (), value_len);
ACE_OS::strcpy (new_type, type);
ACE_NS_Internal new_internal (new_value, new_type);
int result = -1;
if (rebind == 0)
{
// Do a normal bind. This will fail if there's already an
// <new_internal> with the same name.
result = this->name_space_map_->bind (new_name, new_internal, this->allocator_);
if (result == 1)
{
// Entry already existed so bind failed. Free our dynamically allocated memory.
this->allocator_->free ((void *) ptr);
return result;
}
}
else
{
// Do a rebind. If there's already any entry, this will return the existing
// <new_name> and <new_internal> and overwrite the existing name binding.
ACE_NS_String old_name;
ACE_NS_Internal old_internal;
result = this->name_space_map_->rebind (new_name, new_internal,
old_name, old_internal,
this->allocator_);
if (result == 1)
{
// Free up the memory we allocated in shared_bind(). Note that this
// assumes that the "value" pointer comes first and that the value,
// name, and type are contiguously allocated (see above for details)
this->allocator_->free ((void *) (old_internal.value ()).fast_rep ());
}
}
if (result == -1)
// Free our dynamically allocated memory.
this->allocator_->free ((void *) ptr);
else
// If bind() or rebind() succeed, they will automatically sync
// up the map manager entry. However, we must sync up our
// name/value memory.
this->allocator_->sync (ptr, total_len);
return result;
}
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::unbind (const ACE_WString &name)
{
// Note that we *must* use structured exception handling here
// because (1) we may need to commit virtual memory pages and (2)
// C++ exception handling doesn't support resumption.
ACE_SEH_TRY
{
return this->unbind_i (name);
}
ACE_SEH_EXCEPT (this->remap (GetExceptionInformation ()))
{
}
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::unbind_i (const ACE_WString &name)
{
ACE_TRACE ("ACE_Local_Name_Space::unbind");
ACE_WRITE_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
ACE_NS_String ns_name (name);
ACE_NS_Internal ns_internal;
if (this->name_space_map_->unbind (ns_name, ns_internal, this->allocator_) != 0)
return -1;
else
{
// Free up the memory we allocated in shared_bind(). Note that
// this assumes that the "value" pointer comes first and that
// the value, name and type are contiguously allocated (see
// shared_bind() for details)
this->allocator_->free ((void *) (ns_internal.value ()).fast_rep ());
return 0;
}
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::bind (const ACE_WString &name,
const ACE_WString &value,
const char *type)
{
ACE_TRACE ("ACE_Local_Name_Space::bind");
ACE_WRITE_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
return this->shared_bind (name, value, type, 0);
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::rebind (const ACE_WString &name,
const ACE_WString &value,
const char *type)
{
ACE_TRACE ("ACE_Local_Name_Space::rebind");
ACE_WRITE_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
return this->shared_bind (name, value, type, 1);
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::resolve (const ACE_WString &name,
ACE_WString &value,
char *&type)
{
// Note that we *must* use structured exception handling here
// because (1) we may need to commit virtual memory pages and (2)
// C++ exception handling doesn't support resumption.
ACE_SEH_TRY
{
return this->resolve_i (name, value, type);
}
ACE_SEH_EXCEPT (this->remap (GetExceptionInformation ()))
{
}
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::resolve_i (const ACE_WString &name,
ACE_WString &value,
char *&type)
{
ACE_TRACE ("ACE_Local_Name_Space::resolve");
ACE_READ_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
ACE_NS_String ns_name (name);
ACE_NS_Internal ns_internal;
ACE_NS_String nbc_string; // Note the classy variable name! :)
if (this->name_space_map_->find (ns_name, ns_internal, this->allocator_) != 0)
return -1;
else
{
// Calls conversion operator and then calls the ACE_WString
// assignment operator to get a fresh copy. (*#*(@#&!*@!!*@&(
// HP compiler causes us to add an extra copy explicitly !! :)
nbc_string = ns_internal.value ();
value = nbc_string;
// Gets type and then the actual reprsentation which is a ACE_USHORT16
const char *temp = ns_internal.type ();
size_t len = ACE_OS::strlen (ns_internal.type ());
// Makes a copy here. Caller needs to call delete to free up memory
char *new_type;
ACE_NEW_RETURN (new_type, char [len + 1], -1);
ACE_OS::strncpy (new_type, temp, len);
new_type[len] = '\0'; // Null terminate the string
type = new_type;
return 0;
}
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::open (ACE_Naming_Context::Context_Scope_Type scope_in)
{
ACE_TRACE ("ACE_Local_Name_Space::open");
this->ns_scope_ = scope_in;
return this->create_manager ();
}
template <ACE_MEM_POOL_1, class LOCK>
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::ACE_Local_Name_Space (void)
: allocator_ (0),
name_space_map_ (0),
name_options_ (0)
{
ACE_TRACE ("ACE_Local_Name_Space::ACE_Local_Name_Space");
}
template <ACE_MEM_POOL_1, class LOCK>
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::ACE_Local_Name_Space (ACE_Naming_Context::Context_Scope_Type scope_in,
ACE_Name_Options *name_options)
: name_options_ (name_options)
{
ACE_TRACE ("ACE_Local_Name_Space::ACE_Local_Name_Space");
if (this->open (scope_in) == -1)
ACE_ERROR ((LM_ERROR, "%p\n", "ACE_Local_Name_Space::ACE_Local_Name_Space"));
}
template <ACE_MEM_POOL_1, class LOCK>
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::~ACE_Local_Name_Space (void)
{
ACE_TRACE ("ACE_Local_Name_Space::~ACE_Local_Name_Space");
// Remove the map
delete this->allocator_;
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::create_manager (void)
{
// Note that we *must* use structured exception handling here
// because (1) we may need to commit virtual memory pages and (2)
// C++ exception handling doesn't support resumption.
ACE_SEH_TRY
{
return this->create_manager_i ();
}
ACE_SEH_EXCEPT (this->remap (GetExceptionInformation ()))
{
}
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::create_manager_i (void)
{
ACE_TRACE ("ACE_Local_Name_Space::create_manager");
// Get directory name
const char *dir = this->name_options_->namespace_dir ();
// Use process name as the file name.
size_t len = ACE_OS::strlen (dir);
len += ACE_OS::strlen (this->name_options_->database ()) + 1;
if (len >= MAXNAMELEN)
{
errno = ENAMETOOLONG;
return -1;
}
ACE_OS::strcpy (this->context_file_, dir);
ACE_OS::strcat (this->context_file_, ACE_DIRECTORY_SEPARATOR_STR);
ACE_OS::strcat (this->context_file_, this->name_options_->database ());
ACE_DEBUG ((LM_DEBUG, "contextfile is %s\n",
this->context_file_));
ACE_MEM_POOL_OPTIONS options (this->name_options_->base_address ());
// Create the allocator with the appropriate options.
ACE_NEW_RETURN (this->allocator_, ALLOCATOR (this->context_file_, 0, &options), -1);
if (ACE_LOG_MSG->op_status ())
ACE_ERROR_RETURN ((LM_ERROR, "Allocator::Allocator\n"), -1);
// Now check if the backing store has been created successfully
if (ACE_OS::access (this->context_file_, F_OK) != 0)
ACE_ERROR_RETURN ((LM_ERROR, "create_manager\n"), -1);
void *ns_map = 0;
// This is the easy case since if we find the Name Server Map
// Manager we know it's already initialized.
if (this->allocator_->find (ACE_NAME_SERVER_MAP, ns_map) == 0)
{
this->name_space_map_ = (ACE_Name_Space_Map <ALLOCATOR> *) ns_map;
ACE_DEBUG ((LM_DEBUG, "name_space_map_ = %d, ns_map = %d\n",
this->name_space_map_, ns_map));
}
// This is the hard part since we have to avoid potential race
// conditions...
else
{
size_t map_size = sizeof *this->name_space_map_;
ns_map = this->allocator_->malloc (map_size);
// Initialize the map into its memory location (e.g., shared memory).
ACE_NEW_RETURN (this->name_space_map_,
(ns_map) ACE_Name_Space_Map <ALLOCATOR> (this->allocator_),
-1);
// Don't allow duplicates (atomically return existing int_id, if
// there is one).
if (this->allocator_->trybind (ACE_NAME_SERVER_MAP, ns_map) == 1)
{
// We're not the first one in, so free up the map and assign
// the map to the pointer that was allocated by the caller
// that was the first time in!
this->name_space_map_->close (this->allocator_);
// Note that we can't free <map> since that was overwritten
// in the call to bind()!
this->allocator_->free ((void *) this->name_space_map_);
this->name_space_map_ = (ACE_Name_Space_Map <ALLOCATOR> *) ns_map;
}
ACE_DEBUG ((LM_DEBUG, "name_space_map_ = %d, ns_map = %d\n",
this->name_space_map_, ns_map));
}
return 0;
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::list_names (ACE_PWSTRING_SET &set,
const ACE_WString &pattern)
{
ACE_TRACE ("ACE_Local_Name_Space::list_names");
ACE_READ_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
MAP_ITERATOR map_iterator (*this->name_space_map_);
MAP_ENTRY *map_entry;
int result = 1;
for (map_entry = 0;
map_iterator.next (map_entry) != 0;
map_iterator.advance())
{
if (map_entry->ext_id_.strstr (pattern) != -1)
{
ACE_WString entry (map_entry->ext_id_ );
if (set.insert (entry) == -1)
{
result = -1;
break;
}
else
result = 0;
}
}
return result;
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::list_values (ACE_PWSTRING_SET &set,
const ACE_WString &pattern)
{
ACE_TRACE ("ACE_Local_Name_Space::list_values");
ACE_READ_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
MAP_ITERATOR map_iterator (*this->name_space_map_);
MAP_ENTRY *map_entry;
int result = 1;
for (map_entry = 0;
map_iterator.next (map_entry) != 0;
map_iterator.advance ())
{
if (map_entry->int_id_.value ().strstr (pattern) != -1)
{
ACE_WString entry (map_entry->int_id_.value ());
if (set.insert (entry) == -1)
{
result = -1;
break;
}
else
result = 0;
}
}
return result;
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::list_types (ACE_PWSTRING_SET &set,
const ACE_WString &pattern)
{
ACE_TRACE ("ACE_Local_Name_Space::list_types");
ACE_READ_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
MAP_ITERATOR map_iterator (*this->name_space_map_);
MAP_ENTRY *map_entry;
char *compiled_regexp = 0;
// Note that char_rep() allocates memory so we need to delete it
char *pattern_rep = pattern.char_rep ();
// Check for wildcard case first.
if (ACE_OS::strcmp ("", pattern_rep) == 0)
compiled_regexp = ACE_OS::strdup ("");
else
// Compile the regular expression (the 0's cause ACE_OS::compile to allocate space).
#if defined (ACE_HAS_REGEX)
compiled_regexp = ACE_OS::compile (pattern_rep, 0, 0);
#else // If we don't have regular expressions just the pattern directly.
compiled_regexp = pattern_rep;
#endif /* ACE_HAS_REGEX */
int result = 1;
for (map_entry = 0;
map_iterator.next (map_entry) != 0;
map_iterator.advance ())
{
// Get the type
const char *type = map_entry->int_id_.type ();
if (ACE_OS::strcmp ("", pattern_rep) == 0 // Everything matches the wildcard.
#if defined (ACE_HAS_REGEX)
|| ACE_OS::step (type, compiled_regexp) != 0)
#else // If we don't have regular expressions just use strstr() for substring matching.
|| ACE_OS::strstr (type, compiled_regexp) != 0)
#endif /* ACE_HAS_REGEX */
{
ACE_WString entry (type);
if (set.insert (entry) == -1)
{
result = -1;
break;
}
else
result = 0;
}
}
#if defined (ACE_HAS_REGEX)
if (compiled_regexp)
ACE_OS::free ((void *) compiled_regexp);
#endif /* ACE_HAS_REGEX */
delete [] pattern_rep; // delete pattern_rep;
return result;
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space <ACE_MEM_POOL_2, LOCK>::list_name_entries (ACE_BINDING_SET &set,
const ACE_WString &pattern)
{
ACE_TRACE ("ACE_Local_Name_Space::list_name_entries");
ACE_READ_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
MAP_ITERATOR map_iterator (*this->name_space_map_);
MAP_ENTRY *map_entry;
for (map_entry = 0;
map_iterator.next (map_entry) != 0;
map_iterator.advance())
{
if (map_entry->ext_id_.strstr (pattern) != -1)
{
ACE_Name_Binding entry (map_entry->ext_id_,
map_entry->int_id_.value (),
map_entry->int_id_.type ());
if (set.insert (entry) == -1)
return -1;
}
}
return 0;
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::list_value_entries (ACE_BINDING_SET &set,
const ACE_WString &pattern)
{
ACE_TRACE ("ACE_Local_Name_Space::list_value_entries");
ACE_READ_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
MAP_ITERATOR map_iterator (*this->name_space_map_);
MAP_ENTRY *map_entry;
for (map_entry = 0;
map_iterator.next (map_entry) != 0;
map_iterator.advance ())
{
if (map_entry->int_id_.value ().strstr (pattern) != -1)
{
ACE_Name_Binding entry (map_entry->ext_id_,
map_entry->int_id_.value (),
map_entry->int_id_.type ());
if (set.insert (entry) == -1)
return -1;
}
}
return 0;
}
template <ACE_MEM_POOL_1, class LOCK> int
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::list_type_entries (ACE_BINDING_SET &set,
const ACE_WString &pattern)
{
ACE_TRACE ("ACE_Local_Name_Space::list_type_entries");
ACE_READ_GUARD_RETURN (ACE_RW_Process_Mutex, ace_mon, this->lock_, -1);
MAP_ITERATOR map_iterator (*this->name_space_map_);
MAP_ENTRY *map_entry;
char *compiled_regexp = 0;
// Note that char_rep() allocates memory so we need to delete it
char *pattern_rep = pattern.char_rep ();
// Check for wildcard case first.
if (ACE_OS::strcmp ("", pattern_rep) == 0)
compiled_regexp = ACE_OS::strdup ("");
else
// Compile the regular expression (the 0's cause ACE_OS::compile to allocate space).
#if defined (ACE_HAS_REGEX)
compiled_regexp = ACE_OS::compile (pattern_rep, 0, 0);
#else // If we don't have regular expressions just the pattern directly.
compiled_regexp = pattern_rep;
#endif /* ACE_HAS_REGEX */
for (map_entry = 0;
map_iterator.next (map_entry) != 0;
map_iterator.advance ())
{
// Get the type.
const char *type = map_entry->int_id_.type ();
if (ACE_OS::strcmp ("", pattern_rep) == 0 // Everything matches the wildcard.
#if defined (ACE_HAS_REGEX)
|| ACE_OS::step (type, compiled_regexp) != 0)
#else // If we don't have regular expressions just use strstr() for substring matching.
|| ACE_OS::strstr (type, compiled_regexp) != 0)
#endif /* ACE_HAS_REGEX */
{
ACE_Name_Binding entry (map_entry->ext_id_,
map_entry->int_id_.value (),
map_entry->int_id_.type ());
if (set.insert (entry) == -1)
return -1;
}
}
#if defined (ACE_HAS_REGEX)
if (compiled_regexp)
ACE_OS::free ((void *) compiled_regexp);
#endif /* ACE_HAS_REGEX */
delete [] pattern_rep; // delete pattern_rep;
return 0;
}
template <ACE_MEM_POOL_1, class LOCK> void
ACE_Local_Name_Space<ACE_MEM_POOL_2, LOCK>::dump (void) const
{
ACE_TRACE ("ACE_Local_Name_Space::dump");
ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
MAP_ITERATOR map_iterator (*this->name_space_map_);
MAP_ENTRY *map_entry;
for (map_entry = 0;
map_iterator.next (map_entry) != 0;
map_iterator.advance())
{
char *key = map_entry->ext_id_.char_rep ();
char *value = map_entry->int_id_.value ().char_rep ();
const char *type = map_entry->int_id_.type ();
ACE_DEBUG ((LM_DEBUG, "key=%s\nvalue=%s\ntype=%s\n",
key, value, type));
// We need to delete key and value since char_rep allocates memory for them
delete [] key;
delete [] value;
}
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
}
#endif /* ACE_LOCAL_NAME_SPACE_T_C */
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