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28 lines
518 B
C++
28 lines
518 B
C++
#include <llarp/buffer.h>
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#include <cstring>
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extern "C" {
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size_t llarp_buffer_size_left(llarp_buffer_t *buff) {
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std::ptrdiff_t diff = buff->cur - buff->base;
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if (diff < 0) {
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return 0;
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} else if (diff > buff->sz)
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return 0;
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else
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return buff->sz - diff;
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}
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bool llarp_buffer_write(llarp_buffer_t * buff, const void * data, size_t sz)
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{
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size_t left = llarp_buffer_size_left(buff);
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if (sz > left)
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{
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return false;
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}
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std::memcpy(buff->cur, data, sz);
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buff->cur += sz;
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return true;
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}
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}
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