Memory Buffer Management
You can use Search buffers in parsing or printing routines. They take
care of memory allocation for inserting and appending. They are basically
memory blocks that are easy for Search routines to use.
A Search Buffer is represented in a SearchBuffer structure,
that is created with the SearchBuffer_Create() function
and freed with the SearchBuffer-Free() function. The SearchBuffer structure provides the append(), increase(), and reset() functions for manipulating
the data in the buffer.
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SearchBuffer_Create
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NSAPI_PUBLIC SearchBuffer *
SearchBuffer_Create(int default_sz);
The SearchBuffer is used in Search_PrintInitStr(SearchBuffer
*memory). Before you can print Search to memory, you need to create
a buffer for output.
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SearchBuffer_Free
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NSAPI_PUBLIC void SearchBuffer_Free
(SearchBuffer *sb);
Releases the memory buffer created by SearchBuffer_Create().
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append
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void (*append)(SearchBuffer *sb,
char *data, int n)
Copies n bytes of data into the buffer.
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increase
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void (*increase)(SearchBuffer
*sb, int add_n)
Increases the size of the data buffer by add_n bytes.
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reset
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void (*reset)(SearchBuffer *sb)
Resets the size of the data buffer and invalidates all currently valid
data. A buffer can be reused by resetting it this way.
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