83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
// This file Copyright © 2005-2022 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0), GPLv3 (SPDX: GPL-3.0),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#pragma once
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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#include "transmission.h"
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#include "file.h"
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#include "net.h"
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/**
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* @addtogroup file_io File IO
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* @{
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*/
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/***
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****
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***/
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/**
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* Returns an fd to the specified filename.
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*
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* A small pool of open files is kept to avoid the overhead of
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* continually opening and closing the same files when downloading
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* piece data.
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*
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* - if do_write is true, subfolders in torrentFile are created if necessary.
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* - if do_write is true, the target file is created if necessary.
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*
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* on success, a file descriptor >= 0 is returned.
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* on failure, a TR_BAD_SYS_FILE is returned and errno is set.
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*
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* @see tr_fdFileClose
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*/
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tr_sys_file_t tr_fdFileCheckout(
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tr_session* session,
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int torrent_id,
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tr_file_index_t file_num,
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char const* filename,
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bool do_write,
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tr_preallocation_mode preallocation_mode,
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uint64_t preallocation_file_size);
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tr_sys_file_t tr_fdFileGetCached(tr_session* session, int torrent_id, tr_file_index_t file_num, bool doWrite);
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/**
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* Closes a file that's being held by our file repository.
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*
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* If the file isn't checked out, it's fsync()ed and close()d immediately.
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* If the file is currently checked out, it will be closed upon its return.
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*
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* @see tr_fdFileCheckout
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*/
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void tr_fdFileClose(tr_session* session, tr_torrent const* tor, tr_file_index_t file_num);
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/**
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* Closes all the files associated with a given torrent id
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*/
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void tr_fdTorrentClose(tr_session* session, int torrentId);
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/***********************************************************************
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* Sockets
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**********************************************************************/
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tr_socket_t tr_fdSocketCreate(tr_session* session, int domain, int type);
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tr_socket_t tr_fdSocketAccept(tr_session* session, tr_socket_t listening_sockfd, tr_address* addr, tr_port* port);
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void tr_fdSocketClose(tr_session* session, tr_socket_t s);
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/***********************************************************************
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* tr_fdClose
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***********************************************************************
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* Frees resources allocated by tr_fdInit.
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**********************************************************************/
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void tr_fdClose(tr_session* session);
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/* @} */
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