initial code repo

[stor4nfv.git] / src / ceph / src / test / librados_test_stub / TestClassHandler.cc

diff --git a/src/ceph/src/test/librados_test_stub/TestClassHandler.cc b/src/ceph/src/test/librados_test_stub/TestClassHandler.cc
new file mode 100644 (file)
index 0000000..35d905a
--- /dev/null
+++ b/src/ceph/src/test/librados_test_stub/TestClassHandler.cc
@@ -0,0 +1,138 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "test/librados_test_stub/TestClassHandler.h"
+#include "test/librados_test_stub/TestIoCtxImpl.h"
+#include <boost/algorithm/string/predicate.hpp>
+#include <dlfcn.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include "common/debug.h"
+#include "include/assert.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rados
+
+namespace librados {
+
+TestClassHandler::TestClassHandler() {
+}
+
+TestClassHandler::~TestClassHandler() {
+  for (ClassHandles::iterator it = m_class_handles.begin();
+      it != m_class_handles.end(); ++it) {
+    dlclose(*it);
+  }
+}
+
+void TestClassHandler::open_class(const std::string& name,
+                                  const std::string& path) {
+  void *handle = dlopen(path.c_str(), RTLD_NOW);
+  if (handle == NULL) {
+    derr << "Failed to load class: " << dlerror() << dendl;
+    return;
+  }
+  m_class_handles.push_back(handle);
+
+  // initialize
+  void (*cls_init)() = reinterpret_cast<void (*)()>(
+      dlsym(handle, "__cls_init"));
+  if (cls_init) {
+    cls_init();
+  }
+}
+
+void TestClassHandler::open_all_classes() {
+  assert(m_class_handles.empty());
+
+  const char* env = getenv("CEPH_LIB");
+  std::string CEPH_LIB(env ? env : ".libs");
+  DIR *dir = ::opendir(CEPH_LIB.c_str());
+  if (dir == NULL) {
+    assert(false);;
+  }
+
+  struct dirent *pde = nullptr;
+  while ((pde = ::readdir(dir))) {
+    std::string name(pde->d_name);
+    if (!boost::algorithm::starts_with(name, "libcls_") ||
+        !boost::algorithm::ends_with(name, ".so")) {
+      continue;
+    }
+    std::string class_name = name.substr(7, name.size() - 10);
+    open_class(class_name, CEPH_LIB + "/" + name);
+  }
+  closedir(dir);
+}
+
+int TestClassHandler::create(const std::string &name, cls_handle_t *handle) {
+  if (m_classes.find(name) != m_classes.end()) {
+    return -EEXIST;
+  }
+
+  SharedClass cls(new Class());
+  m_classes[name] = cls;
+  *handle = reinterpret_cast<cls_handle_t>(cls.get());
+  return 0;
+}
+
+int TestClassHandler::create_method(cls_handle_t hclass,
+                                    const char *name,
+                                    cls_method_cxx_call_t class_call,
+                                    cls_method_handle_t *handle) {
+  Class *cls = reinterpret_cast<Class*>(hclass);
+  if (cls->methods.find(name) != cls->methods.end()) {
+    return -EEXIST;
+  }
+
+  SharedMethod method(new Method());
+  method->class_call = class_call;
+  cls->methods[name] = method;
+  return 0;
+}
+
+cls_method_cxx_call_t TestClassHandler::get_method(const std::string &cls,
+                                                   const std::string &method) {
+  Classes::iterator c_it = m_classes.find(cls);
+  if (c_it == m_classes.end()) {
+    return NULL;
+  }
+
+  SharedClass scls = c_it->second;
+  Methods::iterator m_it = scls->methods.find(method);
+  if (m_it == scls->methods.end()) {
+    return NULL;
+  }
+  return m_it->second->class_call;
+}
+
+TestClassHandler::SharedMethodContext TestClassHandler::get_method_context(
+    TestIoCtxImpl *io_ctx_impl, const std::string &oid,
+    const SnapContext &snapc) {
+  SharedMethodContext ctx(new MethodContext());
+
+  // clone to ioctx to provide a firewall for gmock expectations
+  ctx->io_ctx_impl = io_ctx_impl->clone();
+  ctx->oid = oid;
+  ctx->snapc = snapc;
+  return ctx;
+}
+
+int TestClassHandler::create_filter(cls_handle_t hclass,
+                                   const std::string& name,
+                                   cls_cxx_filter_factory_t fn)
+{
+  Class *cls = reinterpret_cast<Class*>(hclass);
+  if (cls->filters.find(name) != cls->filters.end()) {
+    return -EEXIST;
+  }
+  cls->filters[name] = fn;
+  return 0;
+}
+
+TestClassHandler::MethodContext::~MethodContext() {
+  io_ctx_impl->put();
+}
+
+} // namespace librados