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bd41349831
This first patch permits to cofigure the Lua execution exipiration. This expiration is configured but it is not yet avalaible, it will be add in a future patch.
132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
#ifndef _TYPES_HLUA_H
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#define _TYPES_HLUA_H
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#ifdef USE_LUA
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#include <lua.h>
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#include <lauxlib.h>
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#include <types/proxy.h>
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#include <types/server.h>
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#define CLASS_CORE "Core"
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#define CLASS_TXN "TXN"
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#define CLASS_SOCKET "Socket"
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#define CLASS_CHANNEL "Channel"
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struct session;
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#define HLUA_RUN 0x00000001
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enum hlua_exec {
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HLUA_E_OK = 0,
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HLUA_E_AGAIN, /* LUA yield, must resume the stack execution later, when
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the associatedtask is waked. */
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HLUA_E_ERRMSG, /* LUA stack execution failed with a string error message
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in the top of stack. */
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HLUA_E_ERR, /* LUA stack execution failed without error message. */
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};
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struct hlua {
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lua_State *T; /* The LUA stack. */
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int Tref; /* The reference of the stack in coroutine case.
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-1 for the main lua stack. */
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int Mref; /* The reference of the memory context in coroutine case.
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-1 if the memory context is not used. */
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int nargs; /* The number of arguments in the stack at the start of execution. */
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unsigned int flags; /* The current execution flags. */
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int expire; /* Lua execution must be stopped over this time. */
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struct task *task; /* The task associated with the lua stack execution.
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We must wake this task to continue the task execution */
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struct list com; /* The list head of the signals attached to this task. */
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struct ebpt_node node;
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};
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struct hlua_com {
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struct list purge_me; /* Part of the list of signals to be purged in the
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case of the LUA execution stack crash. */
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struct list wake_me; /* Part of list of signals to be targeted if an
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event occurs. */
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struct task *task; /* The task to be wake if an event occurs. */
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};
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/* This is a part of the list containing references to functions
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* called at the initialisation time.
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*/
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struct hlua_init_function {
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struct list l;
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int function_ref;
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};
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/* This struct contains the lua data used to bind
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* Lua function on HAProxy hook like sample-fetches
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* or actions.
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*/
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struct hlua_function {
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char *name;
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int function_ref;
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};
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/* This struct is used with the structs:
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* - http_req_rule
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* - http_res_rule
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* - tcp_rule
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* It contains the lua execution configuration.
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*/
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struct hlua_rule {
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struct hlua_function fcn;
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char **args;
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};
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/* This struct contains the pointer provided on the most
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* of internal HAProxy calls during the processing of
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* rules, converters and sample-fetches. This struct is
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* associated with the lua object called "TXN".
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*/
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struct hlua_txn {
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struct session *s;
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struct proxy *p;
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void *l7;
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};
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/* This struct is used as a closure argument associated
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* with dynamic sample-fetch created fucntions. This contains
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* a pointer to the original sample_fetch struct. It is used
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* to identify the function to execute with the sample fetch
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* wrapper.
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*/
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struct hlua_sample_fetch {
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struct sample_fetch *f;
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};
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/* This struct contains data used with sleep functions. */
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struct hlua_sleep {
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struct task *task; /* task associated with sleep. */
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struct list com; /* list of signal to wake at the end of sleep. */
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unsigned int wakeup_ms; /* hour to wakeup. */
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};
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/* This struct is used to create coprocess doing TCP or
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* SSL I/O. It uses a fake session.
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*/
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struct hlua_socket {
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struct session *s; /* Session used for socket I/O. */
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luaL_Buffer b; /* buffer used to prepare strings. */
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};
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/* This struct is used join to the class "channel". It
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* just contains a pointer to the manipulated channel.
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*/
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struct hlua_channel {
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struct channel *chn;
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};
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#else /* USE_LUA */
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/* Empty struct for compilation compatibility */
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struct hlua { };
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struct hlua_socket { };
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#endif /* USE_LUA */
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#endif /* _TYPES_HLUA_H */
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