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added method in ftServer to allow retrieving data from shared/downloaded files (patch from electron, modified)

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7999 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
csoler 2015-03-08 13:46:07 +00:00
parent 400d3179e8
commit a1b36cd530
13 changed files with 140 additions and 18 deletions
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21
libretroshare/src/retroshare/rsfiles.h
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@ -109,9 +109,22 @@ class RsFiles
RsFiles() { return; }
virtual ~RsFiles() { return; }
/****************************************/
/* download */
/**
* Provides file data for the gui: media streaming or rpc clients.
* It may return unverified chunks. This allows streaming without having to wait for hashes or completion of the file.
* This function returns an unspecified amount of bytes. Either as much data as available or a sensible maximum. Expect a block size of around 1MiB.
* To get more data, call this function repeatedly with different offsets.
* Returns false in case
* - the files is not available on the local node
* - not downloading
* - the requested data was not downloaded yet
* - end of file was reached
* @param hash hash of a file. The file has to be available on this node or it has to be in downloading state.
* @param offset where the desired block starts
* @param requested_size size of pre-allocated data. Will be updated by the function.
* @param data pre-allocated memory chunk of size 'requested_size' by the client
*/
virtual bool getFileData(const RsFileHash& hash, uint64_t offset, uint32_t& requested_size,uint8_t *data)=0;
/***
* Control of Downloads.
@ -147,7 +160,7 @@ class RsFiles
/***
* Download / Upload Details.
***/
virtual bool FileDownloads(std::list<RsFileHash> &hashs) = 0;
virtual void FileDownloads(std::list<RsFileHash> &hashs) = 0;
virtual bool FileUploads(std::list<RsFileHash> &hashs) = 0;
virtual bool FileDetails(const RsFileHash &hash, FileSearchFlags hintflags, FileInfo &info) = 0;