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MEDIUM: lua: move longjmp annotation macros to hlua.h

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__LJMP, WILL_LJMP() and MAY_LJMP() were defined locally in hlua.c,
making them unavailable to other modules that implement Lua bindings.
Move them to include/haproxy/hlua.h so they can be used outside of
hlua.c.
This commit is contained in:
William Lallemand 2026-06-10 14:17:22 +02:00
parent d0fde90e16
commit 5c0733db9a
2 changed files with 11 additions and 10 deletions
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11
include/haproxy/hlua.h
View file

@ -26,6 +26,17 @@
#ifdef USE_LUA
/* Lua uses longjmp to perform yield or throwing errors. This
* macro is used only for identifying the function that can
* not return because a longjmp is executed.
* __LJMP marks a prototype of hlua file that can use longjmp.
* WILL_LJMP() marks an lua function that will use longjmp.
* MAY_LJMP() marks an lua function that may use longjmp.
*/
#define __LJMP
#define WILL_LJMP(func) do { func; my_unreachable(); } while(0)
#define MAY_LJMP(func) func
/* The following macros are used to set flags. */
#define HLUA_SET_RUN(__hlua) do {(__hlua)->flags |= HLUA_RUN;} while(0)
#define HLUA_CLR_RUN(__hlua) do {(__hlua)->flags &= ~HLUA_RUN;} while(0)

10
src/hlua.c
View file

@ -105,16 +105,6 @@ static uint8_t hlua_body = 1;
*/
static uint8_t hlua_bool_sample_conversion = HLUA_BOOL_SAMPLE_CONVERSION_UNK;
/* Lua uses longjmp to perform yield or throwing errors. This
* macro is used only for identifying the function that can
* not return because a longjmp is executed.
* __LJMP marks a prototype of hlua file that can use longjmp.
* WILL_LJMP() marks an lua function that will use longjmp.
* MAY_LJMP() marks an lua function that may use longjmp.
*/
#define __LJMP
#define WILL_LJMP(func) do { func; my_unreachable(); } while(0)
#define MAY_LJMP(func) func
/* This couple of function executes securely some Lua calls outside of
* the lua runtime environment. Each Lua call can return a longjmp