Does it make a difference in terms of performance to use stack buffers?
I switched now to using stack buffers, since for me it makes the code
more readable not having to deal with several buffers and possible race
conditions. (but just my view on the topic)
Thanks a lot for your answer. I will also update the forum post with the
information! :)
Bests
Nick
On 10/13/21 10:51, Felix Fietkau wrote:
On 2021-10-13 07:53, Nick wrote:
Since I saw there were some new patches, e.g., procd, fixing
blob_buf_free() calls.
I asked several months ago: "Should you call blob_buf_free() after
calling blob_buf_init()?"
https://forum.openwrt.org/t/should-you-call-blob-buf-free-after-calling-blob-buf-init
I did not receive any answer. I think blob_buf_init() is freeing memory
if it is the same buf?
Any suggestions how to use blob_buf_free?
If a buffer was already allocated, blob_buf_init reuses it. You can keep
reusing it as many times as you want. You only need to call
blob_buf_free if you explicitly want to free the buffer memory (e.g. on
exit, or if the blob_buf is on stack)
- Felix
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