mirror of
https://github.com/transmission/transmission
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127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
/*
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* This file Copyright (C) 2007-2010 Mnemosyne LLC
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*
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* This file is licensed by the GPL version 2. Works owned by the
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* Transmission project are granted a special exemption to clause 2(b)
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* so that the bulk of its code can remain under the MIT license.
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* This exemption does not extend to derived works not owned by
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* the Transmission project.
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*
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* $Id$
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*/
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#ifndef TR_MAKEMETA_H
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#define TR_MAKEMETA_H 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct tr_metainfo_builder_file
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{
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char * filename;
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uint64_t size;
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}
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tr_metainfo_builder_file;
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typedef enum
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{
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TR_MAKEMETA_OK,
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TR_MAKEMETA_URL,
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TR_MAKEMETA_CANCELLED,
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TR_MAKEMETA_IO_READ, /* see builder.errfile, builder.my_errno */
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TR_MAKEMETA_IO_WRITE /* see builder.errfile, builder.my_errno */
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}
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tr_metainfo_builder_err;
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typedef struct tr_metainfo_builder
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{
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/**
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*** These are set by tr_makeMetaInfoBuilderCreate()
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*** and cleaned up by tr_metaInfoBuilderFree()
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**/
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char * top;
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tr_metainfo_builder_file * files;
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uint64_t totalSize;
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uint32_t fileCount;
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uint32_t pieceSize;
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uint32_t pieceCount;
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int isSingleFile;
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/**
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*** These are set inside tr_makeMetaInfo()
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*** by copying the arguments passed to it,
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*** and cleaned up by tr_metaInfoBuilderFree()
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**/
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tr_tracker_info * trackers;
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int trackerCount;
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char * comment;
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char * outputFile;
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int isPrivate;
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/**
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*** These are set inside tr_makeMetaInfo() so the client
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*** can poll periodically to see what the status is.
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*** The client can also set abortFlag to nonzero to
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*** tell tr_makeMetaInfo() to abort and clean up after itself.
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**/
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uint32_t pieceIndex;
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int abortFlag;
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int isDone;
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tr_metainfo_builder_err result;
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/* file in use when result was set to _IO_READ or _IO_WRITE,
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* or the URL in use when the result was set to _URL */
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char errfile[2048];
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/* errno encountered when result was set to _IO_READ or _IO_WRITE */
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int my_errno;
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/**
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*** This is an implementation detail.
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*** The client should never use these fields.
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**/
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struct tr_metainfo_builder * nextBuilder;
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}
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tr_metainfo_builder;
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tr_metainfo_builder*tr_metaInfoBuilderCreate( const char * topFile );
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void tr_metaInfoBuilderFree( tr_metainfo_builder* );
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/**
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* @brief create a new .torrent file
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*
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* This is actually done in a worker thread, not the main thread!
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* Otherwise the client's interface would lock up while this runs.
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*
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* It is the caller's responsibility to poll builder->isDone
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* from time to time! When the worker thread sets that flag,
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* the caller must pass the builder to tr_metaInfoBuilderFree().
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*
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* @param outputFile if NULL, builder->top + ".torrent" will be used.
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* @param trackers An array of trackers, sorted by tier from first to last.
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* NOTE: only the `tier' and `announce' fields are used.
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*
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* @param trackerCount size of the `trackers' array
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*/
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void tr_makeMetaInfo( tr_metainfo_builder * builder,
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const char * outputFile,
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const tr_tracker_info * trackers,
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int trackerCount,
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const char * comment,
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int isPrivate );
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#ifdef __cplusplus
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}
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#endif
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#endif
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