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1 #pragma once
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2
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3 class reader_pretend_nonseekable : public file {
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4 public:
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5 reader_pretend_nonseekable( file::ptr f, bool pretendRemote = true ) : m_file(f), m_pretendRemote(pretendRemote) {}
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6
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7 t_filesize get_size(abort_callback & p_abort) {
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8 return m_file->get_size(p_abort);
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9 }
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10
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11
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12 t_filesize get_position(abort_callback & p_abort) {
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13 return m_file->get_position(p_abort);
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14 }
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15
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16 void resize(t_filesize p_size, abort_callback & p_abort) {
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17 throw exception_io_denied();
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18 }
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19
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20 void seek(t_filesize p_position, abort_callback & p_abort) {
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21 throw exception_io_object_not_seekable();
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22 }
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23
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24 void seek_ex(t_sfilesize p_position, t_seek_mode p_mode, abort_callback & p_abort) {
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25 throw exception_io_object_not_seekable();
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26 }
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27
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28 bool can_seek() {return false;}
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29
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30 bool get_content_type(pfc::string_base & p_out) {
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31 return m_file->get_content_type(p_out);
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32 }
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33
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34 bool is_in_memory() { return m_file->is_in_memory(); }
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35
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36 void on_idle(abort_callback & p_abort) {m_file->on_idle(p_abort);}
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37
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38 t_filetimestamp get_timestamp(abort_callback & p_abort) { return m_file->get_timestamp(p_abort); }
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39
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40 void reopen(abort_callback & p_abort) {
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41 #if PFC_DEBUG
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42 auto pos = get_position(p_abort);
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43 FB2K_console_formatter() << "pretend nonseekable reader reopen @ " << pos;
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44 if ( pos > 0 ) {
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45 pfc::nop();
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46 }
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47 #endif
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48 m_file->reopen(p_abort);
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49 }
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50
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51 bool is_remote() {return m_pretendRemote;}
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52
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53 size_t read( void * ptr, size_t bytes, abort_callback & abort ) { return m_file->read(ptr, bytes, abort); }
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54 void read_object(void * p_buffer, t_size p_bytes, abort_callback & p_abort) {m_file->read_object(p_buffer, p_bytes, p_abort); }
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55 t_filesize skip(t_filesize p_bytes, abort_callback & p_abort) { return m_file->skip(p_bytes, p_abort); }
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56 void skip_object(t_filesize p_bytes, abort_callback & p_abort) { m_file->skip_object(p_bytes, p_abort); }
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57 void write( const void * ptr, size_t bytes, abort_callback & abort ) { throw exception_io_denied(); }
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58 private:
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59 const file::ptr m_file;
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60 const bool m_pretendRemote;
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61 }; |
