通过例子simpledb来展现skynet.call调用时coroutine的运行过程

第一步
进入skynet目录
运行服务 ./skynet examples/config
运行客户端 ./3rd/lua/lua examples/client.lua

第二步
查看客户端输入hello得到world回复这个过程中coroutine的运行过程
过程日志

skynet=     16777231    dispatch_message begin
skynet=     16777231    raw_dispatch_message begin  6   0   0
skynet=     16777231    raw_dispatch_message request co_create begin
skynet=     16777231    co_create begin
skynet=     16777231    co_create two resume function begin
skynet=     16777231    co_create EXIT end
skynet=     16777231    co_create resume function begin
skynet=     16777231    co_create two resume function end
skynet=     16777231    raw_dispatch_message request co_create end
skynet=     16777231    raw_dispatch_message request suspend begin
skynet=     16777231    co_create resume function end
skynet=     16777231    co_create EXIT begin
skynet=     16777231    suspend begin   true    EXIT
skynet=     16777231    raw_dispatch_message request suspend end
skynet=     16777231    raw_dispatch_message end    6   0   0
skynet=     16777231    dispatch_message end
skynet=     16777232    dispatch_message begin
skynet=     16777232    raw_dispatch_message begin  3   1   16777231
skynet=     16777232    raw_dispatch_message request co_create begin
skynet=     16777232    co_create begin
skynet=     16777232    co_create two resume function begin
skynet=     16777232    co_create EXIT end
skynet=     16777232    co_create resume function begin
skynet=     16777232    co_create two resume function end
skynet=     16777232    raw_dispatch_message request co_create end
skynet=     16777232    raw_dispatch_message request suspend begin
agetnt=     16777232    get begin   hello
skynet=     16777232    skynet.call lua
skynet=     16777232    yield_call begin    4
skynet=     16777232    suspend begin   true    CALL
skynet=     16777232    suspend command = CALL
skynet=     16777232    raw_dispatch_message request suspend end
skynet=     16777232    raw_dispatch_message end    3   1   16777231
skynet=     16777232    dispatch_message end
skynet=     16777229    dispatch_message begin
skynet=     16777229    raw_dispatch_message begin  10  4   16777232
skynet=     16777229    raw_dispatch_message request co_create begin
skynet=     16777229    co_create begin
skynet=     16777229    co_create two resume function begin
skynet=     16777229    co_create EXIT end
skynet=     16777229    co_create resume function begin
skynet=     16777229    co_create two resume function end
skynet=     16777229    raw_dispatch_message request co_create end
skynet=     16777229    raw_dispatch_message request suspend begin
simpledb=   16777229    lua begin
skynet=     16777229    suspend begin   true    RETURN
skynet=     16777229    suspend command = RETURN
skynet=     16777229    suspend command = RETURN begin  true
simpledb=   16777229    lua end
skynet=     16777229    co_create resume function end
skynet=     16777229    co_create EXIT begin
skynet=     16777229    suspend begin   true    EXIT
skynet=     16777229    suspend command = RETURN end    true
skynet=     16777229    raw_dispatch_message request suspend end
skynet=     16777229    raw_dispatch_message end    10  4   16777232
skynet=     16777229    dispatch_message end
skynet=     16777232    dispatch_message begin
skynet=     16777232    raw_dispatch_message begin  1   4   16777229
skynet=     16777232    raw_dispatch_message response suspend begin
skynet=     16777232    yield_call end  4
agetnt=     16777232    get end world
skynet=     16777232    co_create resume function end
skynet=     16777232    co_create EXIT begin
skynet=     16777232    suspend begin   true    EXIT
skynet=     16777232    raw_dispatch_message response suspend end
skynet=     16777232    raw_dispatch_message end    1   4   16777229
skynet=     16777232    dispatch_message end

资料
http://blog.csdn.net/linshuhe1/article/details/73854411
http://www.cnblogs.com/iirecord/p/skynet_coroutine.html
https://blog.codingnow.com/2015/12/skynet_coroutine.html