nfs: remove nfs from service engine, refactor nfs to a single module

include/dsn/c/api_layer1.h

@@ -565,44 +565,6 @@ extern DSN_API void dsn_file_write_vector(dsn_handle_t file,
                                           int buffer_count,
                                           uint64_t offset,
                                           dsn::aio_task *cb);
-
-/*!
- copy remote directory to the local machine
-
- \param remote     address of the remote nfs server
- \param source_dir source dir on remote server
- \param dest_dir   destination dir on local server
- \param overwrite  true to overwrite, false to preserve.
- \param high_priority  true means copy in high priority.
- \param cb         callback aio task to be executed on completion
- */
-extern DSN_API void dsn_file_copy_remote_directory(dsn::rpc_address remote,
-                                                   const char *source_dir,
-                                                   const char *dest_dir,
-                                                   bool overwrite,
-                                                   bool high_priority,
-                                                   dsn::aio_task *cb);
-
-/*!
- copy remote files to the local machine
-
- \param remote       address of the remote nfs server
- \param source_dir   source dir on remote server
- \param source_files zero-ended file string array within the source dir on remote server,
-    when it contains no files, all files within source_dir are copied
- \param dest_dir     destination dir on local server
- \param overwrite    true to overwrite, false to preserve.
- \param high_priority  true means copy in high priority.
- \param cb           callback aio task to be executed on completion
- */
-extern DSN_API void dsn_file_copy_remote_files(dsn::rpc_address remote,
-                                               const char *source_dir,
-                                               const char **source_files,
-                                               const char *dest_dir,
-                                               bool overwrite,
-                                               bool high_priority,
-                                               dsn::aio_task *cb);
-
 /*@}*/
 
 /*!

include/dsn/tool-api/nfs.h → include/dsn/dist/nfs_node.h

@@ -24,80 +24,59 @@
  * THE SOFTWARE.
  */
 
-/*
- * Description:
- *     network file system component base interface
- *
- * Revision history:
- *     Mar., 2015, @imzhenyu (Zhenyu Guo), first version
- *     xxxx-xx-xx, author, fix bug about xxx
- */
-
 #pragma once
 
-#include <dsn/service_api_c.h>
 #include <string>
+#include <memory>
 #include <dsn/utility/utils.h>
 #include <dsn/utility/binary_reader.h>
 #include <dsn/utility/binary_writer.h>
 #include <dsn/tool-api/task.h>
 
 namespace dsn {
 
-/*!
-@addtogroup tool-api-providers
-@{
-*/
-
 struct remote_copy_request
 {
-    ::dsn::rpc_address source;
+    dsn::rpc_address source;
     std::string source_dir;
     std::vector<std::string> files;
     std::string dest_dir;
     bool overwrite;
     bool high_priority;
 };
 
-struct remote_copy_response
-{
-};
-
-DSN_API extern void marshall(::dsn::binary_writer &writer, const remote_copy_request &val);
-
-DSN_API extern void unmarshall(::dsn::binary_reader &reader, /*out*/ remote_copy_request &val);
-
-class service_node;
-class task_worker_pool;
-class task_queue;
-
 class nfs_node
 {
 public:
-    template <typename T>
-    static nfs_node *create(service_node *node)
-    {
-        return new T(node);
-    }
-
-    typedef nfs_node *(*factory)(service_node *);
+    static std::unique_ptr<nfs_node> create();
 
 public:
-    nfs_node(service_node *node) : _node(node) {}
-
+    aio_task_ptr copy_remote_directory(rpc_address remote,
+                                       const std::string &source_dir,
+                                       const std::string &dest_dir,
+                                       bool overwrite,
+                                       bool high_priority,
+                                       task_code callback_code,
+                                       task_tracker *tracker,
+                                       aio_handler &&callback,
+                                       int hash = 0);
+    aio_task_ptr copy_remote_files(rpc_address remote,
+                                   const std::string &source_dir,
+                                   const std::vector<std::string> &files, // empty for all
+                                   const std::string &dest_dir,
+                                   bool overwrite,
+                                   bool high_priority,
+                                   task_code callback_code,
+                                   task_tracker *tracker,
+                                   aio_handler &&callback,
+                                   int hash = 0);
+
+    nfs_node() {}
     virtual ~nfs_node() {}
-
-    virtual ::dsn::error_code start() = 0;
-
+    virtual error_code start() = 0;
     virtual error_code stop() = 0;
 
-    virtual void call(std::shared_ptr<remote_copy_request> rci, aio_task *callback) = 0;
-
-    service_node *node() { return _node; }
-
 protected:
-    service_node *_node;
+    virtual void call(std::shared_ptr<remote_copy_request> rci, aio_task *callback) = 0;
 };
-
-/*@}*/
 }

include/dsn/tool-api/async_calls.h

@@ -55,11 +55,6 @@ struct is_typed_rpc_callback<TFunction,
     using response_t = typename std::decay<typename inspect_t::template arg_t<1>>::type;
 };
 
-/*!
-@addtogroup tasking
-@{
-*/
-
 namespace tasking {
 inline task_ptr
 create_task(task_code code, task_tracker *tracker, task_handler &&callback, int hash = 0)
@@ -107,12 +102,7 @@ inline task_ptr enqueue_timer(task_code evt,
     return tsk;
 }
 }
-/*@}*/
 
-/*!
-@addtogroup rpc-client
-@{
-*/
 namespace rpc {
 
 inline rpc_response_task_ptr create_rpc_response_task(dsn_message_t req,
@@ -234,12 +224,7 @@ call_wait(rpc_address server,
                                            partition_hash));
 }
 }
-/*@}*/
 
-/*!
-@addtogroup file
-@{
-*/
 namespace file {
 
 inline aio_task_ptr
@@ -292,55 +277,6 @@ inline aio_task_ptr write_vector(dsn_handle_t fh,
     dsn_file_write_vector(fh, buffers, buffer_count, offset, tsk.get());
     return tsk;
 }
-
-void copy_remote_files_impl(rpc_address remote,
-                            const std::string &source_dir,
-                            const std::vector<std::string> &files, // empty for all
-                            const std::string &dest_dir,
-                            bool overwrite,
-                            bool high_priority,
-                            aio_task *tsk);
-
-inline aio_task_ptr copy_remote_files(rpc_address remote,
-                                      const std::string &source_dir,
-                                      const std::vector<std::string> &files, // empty for all
-                                      const std::string &dest_dir,
-                                      bool overwrite,
-                                      bool high_priority,
-                                      task_code callback_code,
-                                      task_tracker *tracker,
-                                      aio_handler &&callback,
-                                      int hash = 0)
-{
-    auto tsk = create_aio_task(callback_code, tracker, std::move(callback), hash);
-    copy_remote_files_impl(
-        remote, source_dir, files, dest_dir, overwrite, high_priority, tsk.get());
-    return tsk;
-}
-
-inline aio_task_ptr copy_remote_directory(rpc_address remote,
-                                          const std::string &source_dir,
-                                          const std::string &dest_dir,
-                                          bool overwrite,
-                                          bool high_priority,
-                                          task_code callback_code,
-                                          task_tracker *tracker,
-                                          aio_handler &&callback,
-                                          int hash = 0)
-{
-    return copy_remote_files(remote,
-                             source_dir,
-                             {},
-                             dest_dir,
-                             overwrite,
-                             high_priority,
-                             callback_code,
-                             tracker,
-                             std::move(callback),
-                             hash);
-}
 }
-/*@}*/
-// ------------- inline implementation ----------------
 
 } // end namespace

include/dsn/tool-api/global_config.h

@@ -137,7 +137,6 @@ struct service_spec
     std::string tool;                // the main tool (only 1 is allowed for a time)
     std::list<std::string> toollets; // toollets enabled compatible to the main tool
     std::string data_dir;            // to store all data/log/coredump etc.
-    bool start_nfs;
 
     //
     // we allow multiple apps in the same process in rDSN, and each app (service_app_spec)
@@ -192,7 +191,6 @@ CONFIG_BEGIN(service_spec)
 CONFIG_FLD_STRING(tool, "", "use what tool to run this process, e.g., native or simulator")
 CONFIG_FLD_STRING_LIST(toollets, "use what toollets, e.g., tracer, profiler, fault_injector")
 CONFIG_FLD_STRING(data_dir, "./data", "where to put the all the data/log/coredump, etc..")
-CONFIG_FLD(bool, bool, start_nfs, false, "whether to start nfs")
 CONFIG_FLD(
     bool,
     bool,

include/dsn/tool-api/task.h

@@ -67,7 +67,6 @@ class task_queue;
 class rpc_engine;
 class disk_engine;
 class env_provider;
-class nfs_node;
 class timer_service;
 class task;
 
@@ -84,7 +83,6 @@ struct __tls_dsn__
     rpc_engine *rpc;
     disk_engine *disk;
     env_provider *env;
-    nfs_node *nfs;
 
     int last_worker_queue_size;
     uint64_t node_pool_thread_ids; // 8,8,16 bits
@@ -258,7 +256,6 @@ class task : public ref_counter, public extensible_object<task, 4>, public trans
     static rpc_engine *get_current_rpc();
     static disk_engine *get_current_disk();
     static env_provider *get_current_env();
-    static nfs_node *get_current_nfs();
 
     static void set_tls_dsn_context(
         service_node *node, // cannot be null
@@ -707,10 +704,4 @@ __inline /*static*/ env_provider *task::get_current_env()
     return tls_dsn.env;
 }
 
-__inline /*static*/ nfs_node *task::get_current_nfs()
-{
-    check_tls_dsn();
-    return tls_dsn.nfs;
-}
-
 } // end namespace

include/dsn/tool_api.h

@@ -59,7 +59,6 @@ Component providers define the interface for the local components (e.g., network
 #include <dsn/tool-api/network.h>
 #include <dsn/tool-api/aio_provider.h>
 #include <dsn/tool-api/env_provider.h>
-#include <dsn/tool-api/nfs.h>
 #include <dsn/tool-api/zlock_provider.h>
 #include <dsn/tool-api/message_parser.h>
 #include <dsn/tool-api/logging_provider.h>
@@ -159,8 +158,6 @@ register_component_provider(const char *name, env_provider::factory f, ::dsn::pr
 DSN_API bool register_component_provider(const char *name,
                                          logging_provider::factory f,
                                          ::dsn::provider_type type);
-DSN_API bool
-register_component_provider(const char *name, nfs_node::factory f, ::dsn::provider_type type);
 DSN_API bool register_component_provider(network_header_format fmt,
                                          const std::vector<const char *> &signatures,
                                          message_parser::factory f,

scripts/linux/build.sh

@@ -190,7 +190,7 @@ echo "##########################################################################
 ##############################################
 if [ -z "$TEST_MODULE" ]
 then
-    TEST_MODULE="dsn.core.tests,dsn.tests,dsn.replication.simple_kv,dsn.rep_tests.simple_kv,dsn.meta.test,dsn.replica.test"
+    TEST_MODULE="dsn.core.tests,dsn.tests,dsn_nfs_test,dsn.replication.simple_kv,dsn.rep_tests.simple_kv,dsn.meta.test,dsn.replica.test"
 fi
 
 echo "TEST_MODULE=$TEST_MODULE"

src/apps/CMakeLists.txt

@@ -1,5 +1,3 @@
 add_subdirectory(echo)
 add_subdirectory(skv)
-add_subdirectory(nfs)
-add_subdirectory(nfs_test)
 add_subdirectory(cli)

src/apps/echo/config.ini

@@ -155,7 +155,7 @@ semaphore_aspects =
 semaphore_factory_name = 
 
 ; whether to start nfs
-start_nfs = false
+
 
 ; timer service aspect providers, usually for tooling purpose
 timer_aspects =