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I need a generic malloc implementation that uses one big fixed-size buffer. Something similar to the "Zero-malloc memory allocator" SQLite has. Do you know of any such implementations? It should be light-weight and portable that can be used for embedded applications.
Thanks in advance.
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When one calls malloc , memory is taken from the large heap cell, which is returned by malloc . The rest is formed into a new heap cell that consists of all the rest of the memory. When one frees memory, the heap cell is added to the end of the heap's free list.
Use a pointer-to-array type rather than a pointer-to-element type: int (*parray)[10] = malloc(sizeof *parray); Then sizeof *parray gives you the desired answer, but you need to access the array using the * operator, as in (*parray)[i] (or equivalently albeit confusingly, parray[0][i] ).
To check the buffer window, multiply the bit rate (bits per second) by the buffer window (in seconds) and divide by 1000 to get the size, in bits, of the buffer for the stream.
Two suggestions:
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The SQLite source code is freely available. If you like that a particular implementation, why not use it?
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