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Cloud Wu
2014-11-20 11:33:16 +08:00
parent 64801972e7
commit ff6c92b975
1 changed files with 9 additions and 0 deletions
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9
lualib-src/lua-socket.c
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@@ -82,6 +82,15 @@ lnewbuffer(lua_State *L) {
int size
return size
Comment: The table pool record all the buffers chunk,
and the first index [1] is a lightuserdata : free_node. We can always use this pointer for struct buffer_node .
The following ([2] ...) userdatas in table pool is the buffer chunk (for struct buffer_node),
we never free them until the VM closed. The size of first chunk ([2]) is 8 struct buffer_node,
and the second size is 16 ... The largest size of chunk is LARGE_PAGE_NODE (4096)
lpushbbuffer will get a free struct buffer_node from table pool, and then put the msg/size in it.
lpopbuffer return the struct buffer_node back to table pool (By calling return_free_node).
*/
static int
lpushbuffer(lua_State *L) {