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Merge pull request #605 from dachary/wip-erasure-code-plugin-test

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erasure code plugin test
This commit is contained in:
Sage Weil 2013-09-23 10:27:47 -07:00
commit 5bc4610855
8 changed files with 187 additions and 53 deletions
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5
src/osd/ErasureCodePlugin.cc
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@ -36,7 +36,8 @@ static ostream& _prefix(std::ostream* _dout)
ErasureCodePluginRegistry ErasureCodePluginRegistry::singleton;
ErasureCodePluginRegistry::ErasureCodePluginRegistry() :
lock("ErasureCodePluginRegistry::lock")
lock("ErasureCodePluginRegistry::lock"),
loading(false)
{
}
@ -76,7 +77,9 @@ int ErasureCodePluginRegistry::factory(const std::string &plugin_name,
int r = 0;
ErasureCodePlugin *plugin = get(plugin_name);
if (plugin == 0) {
loading = true;
r = load(plugin_name, parameters, &plugin);
loading = false;
if (r != 0)
return r;
}

1
src/osd/ErasureCodePlugin.h
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@ -41,6 +41,7 @@ namespace ceph {
class ErasureCodePluginRegistry {
public:
Mutex lock;
bool loading;
std::map<std::string,ErasureCodePlugin*> plugins;
static ErasureCodePluginRegistry singleton;

23
src/test/Makefile.am
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@ -307,7 +307,28 @@ libec_example_la_LIBADD = $(PTHREAD_LIBS) $(EXTRALIBS)
libec_example_la_LDFLAGS = ${AM_LDFLAGS} -export-symbols-regex '.*__erasure_code_.*'
erasure_codelib_LTLIBRARIES += libec_example.la
unittest_erasure_code_plugin_SOURCES = test/osd/TestErasureCodePluginExample.cc
libec_missing_entry_point_la_SOURCES = test/osd/ErasureCodePluginMissingEntryPoint.cc
libec_missing_entry_point_la_CFLAGS = ${AM_CFLAGS}
libec_missing_entry_point_la_CXXFLAGS= ${AM_CXXFLAGS}
libec_missing_entry_point_la_LIBADD = $(PTHREAD_LIBS) $(EXTRALIBS)
libec_missing_entry_point_la_LDFLAGS = ${AM_LDFLAGS} -export-symbols-regex '.*__erasure_code_.*'
erasure_codelib_LTLIBRARIES += libec_missing_entry_point.la
libec_fail_to_initialize_la_SOURCES = test/osd/ErasureCodePluginFailToInitialize.cc
libec_fail_to_initialize_la_CFLAGS = ${AM_CFLAGS}
libec_fail_to_initialize_la_CXXFLAGS= ${AM_CXXFLAGS}
libec_fail_to_initialize_la_LIBADD = $(PTHREAD_LIBS) $(EXTRALIBS)
libec_fail_to_initialize_la_LDFLAGS = ${AM_LDFLAGS} -export-symbols-regex '.*__erasure_code_.*'
erasure_codelib_LTLIBRARIES += libec_fail_to_initialize.la
libec_fail_to_register_la_SOURCES = test/osd/ErasureCodePluginFailToRegister.cc
libec_fail_to_register_la_CFLAGS = ${AM_CFLAGS}
libec_fail_to_register_la_CXXFLAGS= ${AM_CXXFLAGS}
libec_fail_to_register_la_LIBADD = $(PTHREAD_LIBS) $(EXTRALIBS)
libec_fail_to_register_la_LDFLAGS = ${AM_LDFLAGS} -export-symbols-regex '.*__erasure_code_.*'
erasure_codelib_LTLIBRARIES += libec_fail_to_register.la
unittest_erasure_code_plugin_SOURCES = test/osd/TestErasureCodePlugin.cc
unittest_erasure_code_plugin_CXXFLAGS = $(UNITTEST_CXXFLAGS)
unittest_erasure_code_plugin_LDADD = $(LIBOSD) $(LIBCOMMON) $(UNITTEST_LDADD) $(CEPH_GLOBAL)
if LINUX

23
src/test/osd/ErasureCodePluginFailToInitialize.cc Normal file
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@ -0,0 +1,23 @@
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2013 Cloudwatt <libre.licensing@cloudwatt.com>
*
* Author: Loic Dachary <loic@dachary.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
*/
#include <errno.h>
#include "osd/ErasureCodePlugin.h"
int __erasure_code_init(char *plugin_name)
{
return -ESRCH;
}

22
src/test/osd/ErasureCodePluginFailToRegister.cc Normal file
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@ -0,0 +1,22 @@
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2013 Cloudwatt <libre.licensing@cloudwatt.com>
*
* Author: Loic Dachary <loic@dachary.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
*/
#include "osd/ErasureCodePlugin.h"
int __erasure_code_init(char *plugin_name)
{
return 0;
}

1
src/test/osd/ErasureCodePluginMissingEntryPoint.cc Normal file
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@ -0,0 +1 @@
// missing int __erasure_code_init(char *plugin_name) {}

114
src/test/osd/TestErasureCodePlugin.cc Normal file
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@ -0,0 +1,114 @@
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2013 Cloudwatt <libre.licensing@cloudwatt.com>
*
* Author: Loic Dachary <loic@dachary.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
*/
#include <errno.h>
#include <signal.h>
#include "common/Thread.h"
#include "global/global_init.h"
#include "osd/ErasureCodePlugin.h"
#include "common/ceph_argparse.h"
#include "global/global_context.h"
#include "gtest/gtest.h"
class ErasureCodePluginRegistryTest : public ::testing::Test {
protected:
class Thread_factory : public Thread {
public:
useconds_t delay;
Thread_factory(useconds_t _delay) :
delay(_delay)
{}
virtual void *entry() {
map<std::string,std::string> parameters;
parameters["erasure-code-directory"] = ".libs";
parameters["usleep"] = delay;
ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
ErasureCodeInterfaceRef erasure_code;
instance.factory("example", parameters, &erasure_code);
return NULL;
}
};
};
TEST_F(ErasureCodePluginRegistryTest, factory_mutex) {
ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
EXPECT_TRUE(instance.lock.TryLock());
instance.lock.Unlock();
//
// Test that the loading of a plugin is protected by a mutex.
//
useconds_t delay = 0;
const useconds_t DELAY_MAX = 20 * 1000 * 1000;
Thread_factory sleep_forever(1024 * 1024 * 1024);
sleep_forever.create();
do {
cout << "Trying (1) with delay " << delay << "us\n";
if (delay > 0)
usleep(delay);
if (!instance.loading)
delay = ( delay + 1 ) * 2;
} while(!instance.loading && delay < DELAY_MAX);
ASSERT_TRUE(delay < DELAY_MAX);
EXPECT_FALSE(instance.lock.TryLock());
EXPECT_EQ(0, sleep_forever.detach());
}
TEST_F(ErasureCodePluginRegistryTest, all)
{
map<std::string,std::string> parameters;
parameters["erasure-code-directory"] = ".libs";
ErasureCodeInterfaceRef erasure_code;
ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
EXPECT_FALSE(erasure_code);
EXPECT_EQ(-EIO, instance.factory("invalid", parameters, &erasure_code));
EXPECT_FALSE(erasure_code);
EXPECT_EQ(-ENOENT, instance.factory("missing_entry_point", parameters,
&erasure_code));
EXPECT_FALSE(erasure_code);
EXPECT_EQ(-ESRCH, instance.factory("fail_to_initialize", parameters,
&erasure_code));
EXPECT_FALSE(erasure_code);
EXPECT_EQ(-EBADF, instance.factory("fail_to_register", parameters,
&erasure_code));
EXPECT_FALSE(erasure_code);
EXPECT_EQ(0, instance.factory("example", parameters, &erasure_code));
EXPECT_TRUE(erasure_code);
ErasureCodePlugin *plugin = 0;
EXPECT_EQ(-EEXIST, instance.load("example", parameters, &plugin));
}
int main(int argc, char **argv) {
vector<const char*> args;
argv_to_vec(argc, (const char **)argv, args);
global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT, CODE_ENVIRONMENT_UTILITY, 0);
common_init_finish(g_ceph_context);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
// Local Variables:
// compile-command: "cd ../.. ; make -j4 && make unittest_erasure_code_plugin && valgrind --leak-check=full --tool=memcheck ./unittest_erasure_code_plugin --gtest_filter=*.* --log-to-stderr=true --debug-osd=20"
// End:

51
src/test/osd/TestErasureCodePluginExample.cc
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@ -1,51 +0,0 @@
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2013 Cloudwatt <libre.licensing@cloudwatt.com>
*
* Author: Loic Dachary <loic@dachary.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
*/
#include <errno.h>
#include "common/Thread.h"
#include "global/global_init.h"
#include "osd/ErasureCodePlugin.h"
#include "common/ceph_argparse.h"
#include "global/global_context.h"
#include "gtest/gtest.h"
TEST(ErasureCodePluginRegistry, factory)
{
map<std::string,std::string> parameters;
parameters["erasure-code-directory"] = ".libs";
ErasureCodeInterfaceRef erasure_code;
ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
EXPECT_FALSE(erasure_code);
EXPECT_EQ(0, instance.factory("example", parameters, &erasure_code));
EXPECT_TRUE(erasure_code);
ErasureCodePlugin *plugin = 0;
EXPECT_EQ(-EEXIST, instance.load("example", parameters, &plugin));
}
int main(int argc, char **argv) {
vector<const char*> args;
argv_to_vec(argc, (const char **)argv, args);
global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT, CODE_ENVIRONMENT_UTILITY, 0);
common_init_finish(g_ceph_context);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
// Local Variables:
// compile-command: "cd ../.. ; make -j4 && make unittest_erasure_code_plugin && ./unittest_erasure_code_plugin --gtest_filter=*.* --log-to-stderr=true --debug-osd=20"
// End: