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MINOR: lua: allow socket api settimeout to accept integers, float, and doubles 

Instead of hlua_socket_settimeout() accepting only integers, allow user
to specify float and double as well. Convert to milliseconds much like
cli_parse_set_timeout but also sanity check the value.

http://w3.impa.br/~diego/software/luasocket/tcp.html#settimeout

T. Fournier edit:

The main goal is to keep compatibility with the LuaSocket API. This
API only accept seconds, so using a float to specify milliseconds is
an acceptable way.

Update doc.
This commit is contained in:
Mark Lakes 2018-03-27 09:48:06 +02:00 committed by Willy Tarreau
parent 7741c854cd
commit 56cc12509c
2 changed files with 15 additions and 5 deletions
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5
doc/lua-api/index.rst
View File

@ -1906,12 +1906,13 @@ Socket class
The amount of time to wait is specified as the value parameter, in seconds.
The timeout modes are bot implemented, the only settable timeout is the
The timeout modes are not implemented, the only settable timeout is the
inactivity time waiting for complete the internal buffer send or waiting for
receive data.
:param class_socket socket: Is the manipulated Socket.
:param integer value: The timeout value.
:param float value: The timeout value. Use flotting point to specify
milliseconds.
.. _regex_class:

15
src/hlua.c
View File

@ -11,6 +11,7 @@
*/
#include <ctype.h>
#include <limits.h>
#include <setjmp.h>
#include <lauxlib.h>
@ -2464,6 +2465,7 @@ __LJMP static int hlua_socket_settimeout(struct lua_State *L)
{
struct hlua_socket *socket;
int tmout;
double dtmout;
struct xref *peer;
struct appctx *appctx;
struct stream_interface *si;
@ -2472,19 +2474,26 @@ __LJMP static int hlua_socket_settimeout(struct lua_State *L)
MAY_LJMP(check_args(L, 2, "settimeout"));
socket = MAY_LJMP(hlua_checksocket(L, 1));
tmout = MAY_LJMP(luaL_checkinteger(L, 2)) * 1000;
/* round up for inputs that are fractions and convert to millis */
dtmout = (0.5 + MAY_LJMP(luaL_checknumber(L, 2))) * 1000;
/* Check for negative values */
if (tmout < 0)
if (dtmout < 0)
WILL_LJMP(luaL_error(L, "settimeout: cannot set negatives values"));
if (dtmout > INT_MAX) /* overflow check */
WILL_LJMP(luaL_error(L, "settimeout: cannot set values larger than %d", INT_MAX));
tmout = MS_TO_TICKS((int)dtmout);
/* Check if we run on the same thread than the xreator thread.
* We cannot access to the socket if the thread is different.
*/
if (socket->tid != tid)
WILL_LJMP(luaL_error(L, "connect: cannot use socket on other thread"));
/* check for connection break. If some data where read, return it. */
/* check for connection break. If some data were read, return it. */
peer = xref_get_peer_and_lock(&socket->xref);
if (!peer) {
hlua_pusherror(L, "socket: not yet initialised, you can't set timeouts.");