35 lines
998 B
C
35 lines
998 B
C
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/*
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buffer.h
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--------
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*/
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#define SOME_FUNCTIONS_ARE_DEFINES
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typedef struct Buffer {
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char *data;
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unsigned int allocated;
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unsigned int start;
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unsigned int first_free;
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} Buffer;
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void buffer_init(Buffer* buffer, unsigned int space);
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void buffer_free(Buffer* buffer);
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void buffer_assure_space(Buffer* buffer, unsigned int space);
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void buffer_append(Buffer* buffer, char *from, unsigned int bytes);
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void buffer_remove_start(Buffer* buffer, unsigned int bytes);
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#ifdef SOME_FUNCTIONS_ARE_DEFINES
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#define buffer_increase_length(buffer,bytes) (buffer)->first_free += (bytes)
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#define buffer_length(buffer) ((buffer)->first_free - (buffer)->start)
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#define buffer_start_ptr(buffer) ((buffer)->data + (buffer)->start)
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#define buffer_end_ptr(buffer) ((buffer)->data + (buffer)->first_free)
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#else
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void buffer_increase_length(Buffer* buffer, unsigned int bytes);
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unsigned int buffer_length(Buffer* buffer);
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char* buffer_start_ptr(Buffer* buffer);
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char* buffer_end_ptr(Buffer* buffer);
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#endif
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