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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/util/librarypool.h>
#include <vespa/vespalib/util/exceptions.h>
#include <vespa/vespalib/util/stringfmt.h>
namespace vespalib {
LibraryPool::LibraryPool() :
_libraries(),
_lock()
{
}
LibraryPool::~LibraryPool()
{
LockGuard guard(_lock);
_libraries.clear();
}
void
LibraryPool::loadLibrary(const stringref & libName)
{
LockGuard guard(_lock);
if (_libraries.find(libName) == _libraries.end()) {
DynamicLibrarySP lib(new FastOS_DynamicLibrary);
string file(libName);
if (!lib->Open(file.c_str())) {
string error = lib->GetLastErrorString();
throw IllegalArgumentException(make_string("Failed loading dynamic library '%s' due to '%s'.",
file.c_str(), error.c_str()));
} else {
_libraries[libName] = lib;
}
}
}
FastOS_DynamicLibrary *
LibraryPool::get(const stringref & name)
{
LockGuard guard(_lock);
LibraryMap::const_iterator found(_libraries.find(name));
return (found != _libraries.end())
? found->second.get()
: NULL;
}
const FastOS_DynamicLibrary *
LibraryPool::get(const stringref & name) const
{
LockGuard guard(_lock);
LibraryMap::const_iterator found(_libraries.find(name));
return (found != _libraries.end())
? found->second.get()
: NULL;
}
}
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