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MINOR: lua: add function which return true if the channel is full.

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Add function which return true if the channel is full. It is
useful for triggering some process when the buffer is full.
This commit is contained in:
Thierry FOURNIER / OZON.IO 2016-11-07 15:28:40 +01:00 committed by Willy Tarreau
parent a7da4d24f5
commit 65192f35d2
4 changed files with 30 additions and 5 deletions
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11
doc/lua-api/_static/channel.fig
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@ -8,12 +8,12 @@ Single
-2
1200 2
1 1 0 1 0 7 50 -1 -1 0.000 1 0.0000 4500 1620 1260 585 4500 1620 5760 2205
2 3 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 9
2 3 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 8
1170 1350 1170 1890 2790 1890 2790 2070 3240 1620 2790 1170
2790 1350 1170 1350 1170 1350
2 3 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 9
2790 1350 1170 1350
2 3 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 8
5760 1350 5760 1890 7380 1890 7380 2070 7830 1620 7380 1170
7380 1350 5760 1350 5760 1350
7380 1350 5760 1350
2 1 1 1 0 7 50 -1 -1 1.000 0 0 -1 1 0 2
5 1 1.00 60.00 120.00
6210 540 6210 1440
@ -51,4 +51,5 @@ Single
4 0 0 50 -1 12 12 0.0000 4 150 720 6300 1110 send()\001
4 0 0 50 -1 12 12 0.0000 4 165 1560 6255 2205 get_out_len()\001
4 0 0 50 -1 16 12 0.0000 4 150 1230 6120 2520 read functions\001
4 1 0 50 -1 16 12 0.0000 4 150 1650 4500 540 both side functions\001
4 1 0 50 -1 16 12 0.0000 4 150 1650 4500 315 both side functions\001
4 1 0 50 -1 12 12 0.0000 4 150 1080 4500 540 is_full()\001

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doc/lua-api/_static/channel.png
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5
doc/lua-api/index.rst
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@ -1070,6 +1070,11 @@ Channel class
:param class_channel channel: The manipulated Channel.
:param integer int: The amount of data which will be forwarded.
.. js:function:: Channel.is_full(channel)
This function returns true if the buffer channel is full.
:returns: a boolean
.. _http_class:

19
src/hlua.c
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@ -2859,6 +2859,24 @@ __LJMP static int hlua_channel_get_in_len(lua_State *L)
return 1;
}
/* Returns true if the channel is full. */
__LJMP static int hlua_channel_is_full(lua_State *L)
{
struct channel *chn;
int rem;
MAY_LJMP(check_args(L, 1, "is_full"));
chn = MAY_LJMP(hlua_checkchannel(L, 1));
rem = chn->buf->size;
rem -= chn->buf->o; /* Output size */
rem -= chn->buf->i; /* Input size */
rem -= global.tune.maxrewrite; /* Rewrite reserved size */
lua_pushboolean(L, rem <= 0);
return 1;
}
/* Just returns the number of bytes available in the output
* side of the buffer. This function never fails.
*/
@ -6765,6 +6783,7 @@ void hlua_init(void)
hlua_class_function(gL.T, "forward", hlua_channel_forward);
hlua_class_function(gL.T, "get_in_len", hlua_channel_get_in_len);
hlua_class_function(gL.T, "get_out_len", hlua_channel_get_out_len);
hlua_class_function(gL.T, "is_full", hlua_channel_is_full);
lua_rawset(gL.T, -3);