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DarkBASIC Professional Discussion / Slow file reading/writting in open to read/write case. Is it possible to load/write entire file into/from memblock?

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Leonid
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Posted: 19th Jun 2012 01:40
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Slow file reading/writting in open to read/write case. Is it possible to load/write entire file into/from memblock (not in byte-to-byte mode)? File of memblock (if to see it into a text editor) contains first 4 bytes to set size of memblock and last byte to mark EndOfFile. Is it possible to make file of memblock without these 5 ugly bytes? Example. My program is reading excel table as txt file. If I use open to read/write command, it works too slowly. If I use read memblock from file, I has a problem with first 4 bytes and last 1 byte - file reading is wrong.
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IanM
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Posted: 19th Jun 2012 16:08
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I think you are using the READ MEMBLOCK/WRITE MEMBLOCK commands. Instead, use the MAKE MEMBLOCK FROM FILE/MAKE FILE FROM MEMBLOCK commands.

... or is it the other way around? I can't remember.

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Leonid
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Posted: 21st Jun 2012 09:32 Edited at: 21st Jun 2012 09:32
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If I am will making a file from memblock, any way I will must save/load it byte-to-byte using READ BYTE and WRITE BYTE. There is no command like SAVE FILE (entire) and LOAD FILE (entire).
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basjak
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Posted: 21st Jun 2012 12:44
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Quote: "There is no command like SAVE FILE (entire) and LOAD FILE (entire)."


- Write memblock fileno, memno
- read memblock fileno, memno

- make file from memblock fileno, memno
- make memblock from file fileno, memno

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IanM
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Posted: 21st Jun 2012 23:15
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Ok, confusion over (mine).

It's the MAKE commands that allow you to read/write memblocks with whole files:


Quote: "If I am will making a file from memblock..."

Nope, use this example with a text file of your own.

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