Move all sources to subdirs

src/nfs/nfs_proxy.h

@@ -0,0 +1,133 @@
+// Copyright (c) Vitaliy Filippov, 2019+
+// License: VNPL-1.1 (see README.md for details)
+//
+// Simplified NFS proxy - main entrypoint header
+
+#pragma once
+
+#include "cluster_client.h"
+#include "epoll_manager.h"
+#include "nfs_portmap.h"
+#include "proto/xdr_impl.h"
+#include "vitastor_kv.h"
+
+#define NFS_ROOT_HANDLE "R"
+#define RPC_INIT_BUF_SIZE 32768
+#define MAX_REQUEST_SIZE 128*1024*1024
+#define TRUE 1
+#define FALSE 0
+
+class cli_tool_t;
+
+struct kv_fs_state_t;
+struct block_fs_state_t;
+
+class nfs_proxy_t
+{
+public:
+    std::string bind_address;
+    uint64_t fsid = 1;
+    uint64_t server_id = 0;
+    // FIXME: Maybe allow to create files in different pools?
+    std::string default_pool;
+    std::string export_root;
+    bool portmap_enabled;
+    unsigned nfs_port;
+    int trace = 0;
+    std::string logfile = "/dev/null";
+    std::string pidfile;
+    bool exit_on_umount = false;
+    std::string mountpoint;
+    std::string mountopts;
+    std::string fsname;
+
+    int active_connections = 0;
+    bool finished = false;
+    int listening_port = 0;
+    pool_id_t default_pool_id = 0;
+
+    portmap_service_t pmap;
+    ring_loop_t *ringloop = NULL;
+    epoll_manager_t *epmgr = NULL;
+    cluster_client_t *cli = NULL;
+    cli_tool_t *cmd = NULL;
+    kv_dbw_t *db = NULL;
+    kv_fs_state_t *kvfs = NULL;
+    block_fs_state_t *blockfs = NULL;
+
+    std::vector<XDR*> xdr_pool;
+
+    // inode ID => statistics
+    std::map<inode_t, json11::Json> inode_stats;
+    // pool ID => statistics
+    std::map<pool_id_t, json11::Json> pool_stats;
+
+    ~nfs_proxy_t();
+
+    static json11::Json::object parse_args(int narg, const char *args[]);
+    void run(json11::Json cfg);
+    void watch_stats();
+    void parse_stats(etcd_kv_t & kv);
+    void check_default_pool();
+    void do_accept(int listen_fd);
+    void daemonize();
+    void write_pid();
+    void mount_fs();
+    void check_already_mounted();
+    void check_exit();
+};
+
+struct rpc_cur_buffer_t
+{
+    uint8_t *buf;
+    unsigned size;
+    unsigned read_pos;
+    unsigned parsed_pos;
+    int refs;
+};
+
+struct rpc_used_buffer_t
+{
+    unsigned size;
+    int refs;
+};
+
+struct rpc_free_buffer_t
+{
+    uint8_t *buf;
+    unsigned size;
+};
+
+class nfs_client_t
+{
+public:
+    nfs_proxy_t *parent = NULL;
+    int nfs_fd;
+    int epoll_events = 0;
+    int refs = 0;
+    bool stopped = false;
+    std::set<rpc_service_proc_t> proc_table;
+
+    // Read state
+    rpc_cur_buffer_t cur_buffer = { 0 };
+    std::map<uint8_t*, rpc_used_buffer_t> used_buffers;
+    std::vector<rpc_free_buffer_t> free_buffers;
+
+    iovec read_iov;
+    msghdr read_msg = { 0 };
+
+    // Write state
+    msghdr write_msg = { 0 };
+    std::vector<iovec> send_list, next_send_list;
+    std::vector<rpc_op_t*> outbox, next_outbox;
+
+    void select_read_buffer(unsigned wanted_size);
+    void submit_read(unsigned wanted_size);
+    void handle_read(int result);
+    void submit_send();
+    void handle_send(int result);
+    int handle_rpc_message(void *base_buf, void *msg_buf, uint32_t msg_len);
+
+    bool deref();
+    void stop();
+};