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c273ddc3ee
Didn't commit all the changes where it wants to initialize a struct with `{}`. Should be reviewed in a separate PR. Option `IgnoreArrays` enabled for now to be conservative, can be disabled to see if it proposes more useful changes. Also fixed manually a handful of other missing initializations / moved some from constructors.
166 lines
5.3 KiB
C++
166 lines
5.3 KiB
C++
/*************************************************************************/
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/* file_access_network.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef FILE_ACCESS_NETWORK_H
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#define FILE_ACCESS_NETWORK_H
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#include "core/io/file_access.h"
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#include "core/io/stream_peer_tcp.h"
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#include "core/os/semaphore.h"
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#include "core/os/thread.h"
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class FileAccessNetwork;
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class FileAccessNetworkClient {
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struct BlockRequest {
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int32_t id;
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uint64_t offset;
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int32_t size;
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};
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List<BlockRequest> block_requests;
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Semaphore sem;
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Thread thread;
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bool quit = false;
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Mutex mutex;
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Mutex blockrequest_mutex;
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Map<int, FileAccessNetwork *> accesses;
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Ref<StreamPeerTCP> client;
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int32_t last_id = 0;
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int32_t lockcount = 0;
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Vector<uint8_t> block;
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void _thread_func();
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static void _thread_func(void *s);
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void put_32(int32_t p_32);
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void put_64(int64_t p_64);
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int32_t get_32();
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int64_t get_64();
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void lock_mutex();
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void unlock_mutex();
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friend class FileAccessNetwork;
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static FileAccessNetworkClient *singleton;
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public:
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static FileAccessNetworkClient *get_singleton() { return singleton; }
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Error connect(const String &p_host, int p_port, const String &p_password = "");
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FileAccessNetworkClient();
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~FileAccessNetworkClient();
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};
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class FileAccessNetwork : public FileAccess {
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Semaphore sem;
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Semaphore page_sem;
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Mutex buffer_mutex;
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bool opened = false;
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uint64_t total_size = 0;
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mutable uint64_t pos = 0;
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int32_t id = -1;
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mutable bool eof_flag = false;
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mutable int32_t last_page = -1;
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mutable uint8_t *last_page_buff = nullptr;
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int32_t page_size = 0;
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int32_t read_ahead = 0;
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mutable int waiting_on_page = -1;
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struct Page {
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int activity = 0;
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bool queued = false;
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Vector<uint8_t> buffer;
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};
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mutable Vector<Page> pages;
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mutable Error response;
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uint64_t exists_modtime = 0;
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friend class FileAccessNetworkClient;
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void _queue_page(int32_t p_page) const;
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void _respond(uint64_t p_len, Error p_status);
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void _set_block(uint64_t p_offset, const Vector<uint8_t> &p_block);
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void _close();
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public:
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enum Command {
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COMMAND_OPEN_FILE,
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COMMAND_READ_BLOCK,
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COMMAND_CLOSE,
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COMMAND_FILE_EXISTS,
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COMMAND_GET_MODTIME,
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};
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enum Response {
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RESPONSE_OPEN,
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RESPONSE_DATA,
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RESPONSE_FILE_EXISTS,
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RESPONSE_GET_MODTIME,
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};
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virtual Error _open(const String &p_path, int p_mode_flags); ///< open a file
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virtual bool is_open() const; ///< true when file is open
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virtual void seek(uint64_t p_position); ///< seek to a given position
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virtual void seek_end(int64_t p_position = 0); ///< seek from the end of file
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virtual uint64_t get_position() const; ///< get position in the file
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virtual uint64_t get_length() const; ///< get size of the file
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virtual bool eof_reached() const; ///< reading passed EOF
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virtual uint8_t get_8() const; ///< get a byte
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virtual uint64_t get_buffer(uint8_t *p_dst, uint64_t p_length) const;
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virtual Error get_error() const; ///< get last error
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virtual void flush();
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virtual void store_8(uint8_t p_dest); ///< store a byte
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virtual bool file_exists(const String &p_path); ///< return true if a file exists
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virtual uint64_t _get_modified_time(const String &p_file);
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virtual uint32_t _get_unix_permissions(const String &p_file);
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virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions);
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static void configure();
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FileAccessNetwork();
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~FileAccessNetwork();
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};
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#endif // FILE_ACCESS_NETWORK_H
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