Hi everyone, I'm working on a simple network application and I'm new to the
libuv, so I have this noob question to ask
If I have an application which use only one loop, with many tcp/udp handler
registered on it, is it safe to use static buffer in uv_alloc_cb like this?
static char buffer[65535] = {0};
void alloc_buffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t
*buf) {
buf->base = (char*)buffer;
buf->len = 65535;
}
In my imagine, the event loop of libuv would work in a SINGLE thread with
the following way:
1. System polled an event
2. Invoke uv_alloc_cb
3. Invoke uv_recv_cb with the allocated buffer and other infomation
4. After #3 ends, back to #1
In this circuit, it's easy to point out that the allocated memory will be
only used in uv_recv_cb and will not been overwritten before #3 ends, so in
this situation I think use a static buffer here is possible, but I don't
know whether the process I imagine is correct.
If my imagine is correct, is it safe to use the static buffer?
More questions if it's safe:
1. Does libuv has same behaviour on different platform?
2. Will thread-based handler (file or something else) change the behaviour?
Thanks!!!
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