diff options
Diffstat (limited to 'src/luaconf.h')
| -rw-r--r-- | src/luaconf.h | 307 |
1 files changed, 166 insertions, 141 deletions
diff --git a/src/luaconf.h b/src/luaconf.h index bc211cd3..d6d4a2a7 100644 --- a/src/luaconf.h +++ b/src/luaconf.h @@ -1,5 +1,5 @@ /* -** $Id: luaconf.h,v 1.49a 2005/05/17 19:49:15 roberto Exp $ +** $Id: luaconf.h,v 1.65 2005/09/09 18:24:42 roberto Exp $ ** Configuration file for Lua ** See Copyright Notice in lua.h */ @@ -22,6 +22,16 @@ /* +@@ LUA_ANSI controls the use of non-ansi features. +** CHANGE it (define it) if you want Lua to avoid the use of any +** non-ansi feature or library. +*/ +#if defined(__STRICT_ANSI__) +#define LUA_ANSI +#endif + + +/* @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for @* Lua libraries. @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for @@ -31,22 +41,27 @@ ** non-conventional directories. */ #if defined(_WIN32) -#define LUA_ROOT "C:\\Program Files\\Lua51" -#define LUA_LDIR LUA_ROOT "\\lua" -#define LUA_CDIR LUA_ROOT "\\dll" +/* +** In Windows, any exclamation mark ('!') in the path is replaced by the +** path of the directory of the executable file of the current process. +*/ +#define LUA_LDIR "!\\lua\\" +#define LUA_CDIR "!\\" #define LUA_PATH_DEFAULT \ - "?.lua;" LUA_LDIR"\\?.lua;" LUA_LDIR"\\?\\init.lua" -#define LUA_CPATH_DEFAULT \ - "?.dll;" "l?.dll;" LUA_CDIR"\\?.dll;" LUA_CDIR"\\l?.dll" + ".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ + LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua" +#define LUA_CPATH_DEFAULT \ + ".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll" #else -#define LUA_ROOT "/usr/local" -#define LUA_LDIR LUA_ROOT "/share/lua/5.1" -#define LUA_CDIR LUA_ROOT "/lib/lua/5.1" +#define LUA_ROOT "/usr/local/" +#define LUA_LDIR LUA_ROOT "share/lua/5.1/" +#define LUA_CDIR LUA_ROOT "lib/lua/5.1/" #define LUA_PATH_DEFAULT \ - "./?.lua;" LUA_LDIR"/?.lua;" LUA_LDIR"/?/init.lua" -#define LUA_CPATH_DEFAULT \ - "./?.so;" "./l?.so;" LUA_CDIR"/?.so;" LUA_CDIR"/l?.so" + "./?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ + LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua" +#define LUA_CPATH_DEFAULT \ + "./?.so;" LUA_CDIR"?.so;" LUA_CDIR"loadall.so" #endif @@ -64,21 +79,20 @@ /* @@ LUA_PATHSEP is the character that separates templates in a path. -** CHANGE it if for some reason your system cannot use a -** semicolon. (E.g., if a semicolon is a common character in -** file/directory names.) Probably you do not need to change this. -*/ -#define LUA_PATHSEP ';' - - -/* @@ LUA_PATH_MARK is the string that marks the substitution points in a @* template. -** CHANGE it if for some reason your system cannot use an interrogation -** mark. (E.g., if an interogation mark is a common character in -** file/directory names.) Probably you do not need to change this. -*/ +@@ LUA_EXECDIR in a Windows path is replaced by the executable's +@* directory. +@@ LUA_IGMARK is a mark to ignore all before it when bulding the +@* luaopen_ function name. +** CHANGE them if for some reason your system cannot use those +** characters. (E.g., if one of those characters is a common character +** in file/directory names.) Probably you do not need to change them. +*/ +#define LUA_PATHSEP ";" #define LUA_PATH_MARK "?" +#define LUA_EXECDIR "!" +#define LUA_IGMARK ":" /* @@ -100,9 +114,9 @@ #if defined(LUA_BUILD_AS_DLL) #if defined(LUA_CORE) || defined(LUA_LIB) -#define LUA_API __declspec(__dllexport) +#define LUA_API __declspec(dllexport) #else -#define LUA_API __declspec(__dllimport) +#define LUA_API __declspec(dllimport) #endif #else @@ -118,19 +132,26 @@ /* @@ LUAI_FUNC is a mark for all extern functions that are not to be @* exported to outside modules. -** CHANGE it if you need to mark them in some special way. Gcc (versions -** 3.2 and later) mark them as "hidden" to optimize their call when Lua -** is compiled as a shared library. +@@ LUAI_DATA is a mark for all extern (const) variables that are not to +@* be exported to outside modules. +** CHANGE them if you need to mark them in some special way. Elf/gcc +** (versions 3.2 and later) mark them as "hidden" to optimize access +** when Lua is compiled as a shared library. */ #if defined(luaall_c) #define LUAI_FUNC static -#elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) -#define LUAI_FUNC __attribute__((visibility("hidden"))) +#define LUAI_DATA /* empty */ +#elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ + defined(__ELF__) +#define LUAI_FUNC __attribute__((visibility("hidden"))) extern +#define LUAI_DATA LUAI_FUNC #else #define LUAI_FUNC extern +#define LUAI_DATA extern #endif + /* @@ lua_assert describes the internal assertions in Lua. ** CHANGE that only if you need to debug Lua. @@ -149,7 +170,7 @@ /* @@ LUA_IDSIZE gives the maximum size for the description of the source @* of a function in debug information. -** CHANGE it if you a different size. +** CHANGE it if you want a different size. */ #define LUA_IDSIZE 60 @@ -168,10 +189,10 @@ ** CHANGE it if you have a better definition for non-POSIX/non-Windows ** systems. */ -#if !defined(__STRICT_ANSI__) && defined(_POSIX_C_SOURCE) +#if !defined(LUA_ANSI) && defined(_POSIX_C_SOURCE) #include <unistd.h> #define lua_stdin_is_tty() isatty(0) -#elif !defined(__STRICT_ANSI__) && defined(_WIN32) +#elif !defined(LUA_ANSI) && defined(_WIN32) #include <io.h> #include <stdio.h> #define lua_stdin_is_tty() _isatty(_fileno(stdin)) @@ -214,7 +235,7 @@ ** CHANGE them if you want to improve this functionality (e.g., by using ** GNU readline and history facilities). */ -#if !defined(__STRICT_ANSI__) && defined(LUA_USE_READLINE) +#if defined(LUA_USE_READLINE) #include <stdio.h> #include <readline/readline.h> #include <readline/history.h> @@ -239,49 +260,52 @@ /* @@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles @* as a percentage. -** CHANGE it if you want the GC to run faster or slower (higher -** values mean larger pauses which mean slower collection.) +** CHANGE it if you want the GC to run faster or slower (higher values +** mean larger pauses which mean slower collection.) You can also change +** this value dynamically. */ #define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */ /* -@@ LUAI_GCMUL defines the speed of garbage collection relative to +@@ LUAI_GCMUL defines the default speed of garbage collection relative to @* memory allocation as a percentage. ** CHANGE it if you want to change the granularity of the garbage ** collection. (Higher values mean coarser collections. 0 represents -** infinity, where each step performs a full collection.) +** infinity, where each step performs a full collection.) You can also +** change this value dynamically. */ #define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */ + /* @@ LUA_COMPAT_GETN controls compatibility with old getn behavior. -** CHANGE it to 1 if you want exact compatibility with the behavior of -** setn/getn in Lua 5.0. +** CHANGE it (define it) if you want exact compatibility with the +** behavior of setn/getn in Lua 5.0. */ -#define LUA_COMPAT_GETN 0 +#undef LUA_COMPAT_GETN /* -@@ LUA_COMPAT_PATH controls compatibility about LUA_PATH. -** CHANGE it to 1 if you want 'require' to look for global LUA_PATH -** before checking package.path. +@@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib. +** CHANGE it to undefined as soon as you do not need a global 'loadlib' +** function (the function is still available as 'package.loadlib'). */ -#define LUA_COMPAT_PATH 0 +#undef LUA_COMPAT_LOADLIB /* -@@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib. -** CHANGE it to 1 if you want a global 'loadlib' function (otherwise -** the function is only available as 'package.loadlib'). +@@ LUA_COMPAT_VARARG controls compatibility with old vararg feature. +** CHANGE it to undefined as soon as your programs use only '...' to +** access vararg parameters (instead of the old 'arg' table). */ -#define LUA_COMPAT_LOADLIB 1 +#define LUA_COMPAT_VARARG /* -@@ LUA_COMPAT_VARARG controls compatibility with old vararg feature. -** CHANGE it to 1 if you want vararg functions that do not use '...' -** to get an 'arg' table with their extra arguments. +@@ LUA_COMPAT_MOD controls compatibility with old math.mod function. +** CHANGE it to undefined as soon as your programs use 'math.fmod' or +** the new '%' operator instead of 'math.mod'. */ -#define LUA_COMPAT_VARARG 1 +#define LUA_COMPAT_MOD /* @@ LUA_COMPAT_LSTR controls compatibility with old long string nesting @@ -292,6 +316,31 @@ #define LUA_COMPAT_LSTR 1 /* +@@ LUA_COMPAT_FIND controls compatibility with old 'string.find' behavior. +** CHANGE it to undefined as soon as your programs use 'string.find' only +** to find patterns. +*/ +#define LUA_COMPAT_FIND + +/* +@@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name. +** CHANGE it to undefined as soon as you rename 'string.gfind' to +** 'string.gmatch'. +*/ +#define LUA_COMPAT_GFIND + + +/* +@@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib' +@* behavior. +** CHANGE it to undefined as soon as you replace to 'luaL_registry' +** your uses of 'luaL_openlib' +*/ +#define LUA_COMPAT_OPENLIB + + + +/* @@ luai_apicheck is the assert macro used by the Lua-C API. ** CHANGE luai_apicheck if you want Lua to perform some checks in the ** parameters it gets from API calls. This may slow down the interpreter @@ -407,13 +456,6 @@ /* -@@ LUAI_MAXEXPWHILE is the maximum size of code for expressions -@* controling a 'while' loop. -*/ -#define LUAI_MAXEXPWHILE 100 - - -/* @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. */ #define LUAL_BUFFERSIZE BUFSIZ @@ -424,47 +466,25 @@ /* @@ lua_number2int is a macro to convert lua_Number to int. -** CHANGE that if you know a faster way to convert a lua_Number to +@@ lua_number2integer is a macro to convert lua_Number to lua_Integer. +** CHANGE them if you know a faster way to convert a lua_Number to ** int (with any rounding method and without throwing errors) in your ** system. In Pentium machines, a naive typecast from double to int ** in C is extremely slow, so any alternative is worth trying. */ -/* On a gcc/Pentium, resort to assembler */ -#if !defined(__STRICT_ANSI__) && defined(__GNUC__) && defined(__i386) -#define lua_number2int(i,d) __asm__ ("fistpl %0":"=m"(i):"t"(d):"st") - -/* On Windows/Pentium, resort to assembler */ -#elif !defined(__STRICT_ANSI__) && defined(_MSC_VER) && defined(_M_IX86) -#define lua_number2int(i,d) \ - __asm fld d \ - __asm fistp i - - -/* on Pentium machines compliant with C99, you can try lrint */ -#elif defined (__i386) && defined(__STDC_VERSION__) && \ - (__STDC_VERSION__ >= 199900L) -#define lua_number2int(i,d) ((i)=lrint(d)) - -/* this option always works, but may be slow */ -#else -#define lua_number2int(i,d) ((i)=(int)(d)) - -#endif - - -/* -@@ lua_number2integer is a macro to convert lua_Number to lua_Integer. -** CHANGE (see lua_number2int). -*/ -/* On a gcc or Windows/Pentium, resort to assembler */ -#if (defined(__GNUC__) && defined(__i386)) || \ - (defined(_MSC_VER) && defined(_M_IX86)) +/* On a Pentium, resort to a trick */ +#if !defined(LUA_ANSI) && !defined(__SSE2__) && \ + (defined(__i386) || defined (_M_IX86)) +union luai_Cast { double l_d; long l_l; }; +#define lua_number2int(i,d) \ + { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; } #define lua_number2integer(i,n) lua_number2int(i, n) /* this option always works, but may be slow */ #else -#define lua_number2integer(i,d) ((i)=(lua_Integer)(d)) +#define lua_number2int(i,d) ((i)=(int)(d)) +#define lua_number2integer(i,d) ((i)=(lua_Integer)(d)) #endif @@ -479,13 +499,13 @@ ** =================================================================== */ +#define LUA_NUMBER double /* @@ LUAI_UACNUMBER is the result of an 'usual argument conversion' @* over a number. */ -#define LUA_NUMBER double -#define LUAI_UACNUMBER LUA_NUMBER +#define LUAI_UACNUMBER double /* @@ -505,16 +525,16 @@ /* @@ The luai_num* macros define the primitive operations over numbers. */ -#define luai_numadd(a,b) ((a)+(b)) -#define luai_numsub(a,b) ((a)-(b)) -#define luai_nummul(a,b) ((a)*(b)) -#define luai_numdiv(a,b) ((a)/(b)) -#define luai_nummod(a,b) ((a) - floor((a)/(b))*(b)) -#define luai_numpow(a,b) pow(a,b) -#define luai_numunm(a) (-(a)) -#define luai_numeq(a,b) ((a)==(b)) -#define luai_numlt(a,b) ((a)<(b)) -#define luai_numle(a,b) ((a)<=(b)) +#define luai_numadd(L,a,b) ((a)+(b)) +#define luai_numsub(L,a,b) ((a)-(b)) +#define luai_nummul(L,a,b) ((a)*(b)) +#define luai_numdiv(L,a,b) ((a)/(b)) +#define luai_nummod(L,a,b) ((a) - floor((a)/(b))*(b)) +#define luai_numpow(L,a,b) pow(a,b) +#define luai_numunm(L,a) (-(a)) +#define luai_numeq(L,a,b) ((a)==(b)) +#define luai_numlt(L,a,b) ((a)<(b)) +#define luai_numle(L,a,b) ((a)<=(b)) /* }================================================================== */ @@ -531,11 +551,11 @@ /* @@ LUAI_THROW/LUAI_TRY define how Lua does exception handling. -** CHANGE them if you prefer to use longjmp/setjmp even with C++ or -** if want/don't want to use _longjmp/_setjmp instead of regular +** CHANGE them if you prefer to use longjmp/setjmp even with C++ +** or if want/don't to use _longjmp/_setjmp instead of regular ** longjmp/setjmp. By default, Lua handles errors with exceptions when -** compiling as C++ code, with _longjmp/_setjmp when compiling as C code -** in a Unix system, and with longjmp/setjmp otherwise. +** compiling as C++ code, with _longjmp/_setjmp when asked to use them, +** and with longjmp/setjmp otherwise. */ #if defined(__cplusplus) /* C++ exceptions */ @@ -544,8 +564,7 @@ { if ((c)->status == 0) (c)->status = -1; } #define luai_jmpbuf int /* dummy variable */ -#elif !defined(__STRICT_ANSI__) && (defined(unix) || defined(__unix) || \ - defined(__unix__)) +#elif defined(LUA_USE_ULONGJMP) /* in Unix, try _longjmp/_setjmp (more efficient) */ #define LUAI_THROW(L,c) _longjmp((c)->b, 1) #define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a } @@ -578,7 +597,7 @@ */ #if defined(loslib_c) || defined(luaall_c) -#if !defined(__STRICT_ANSI__) && defined(_POSIX_C_SOURCE) +#if !defined(LUA_ANSI) && defined(_POSIX_C_SOURCE) #include <unistd.h> #define LUA_TMPNAMBUFSIZE 32 #define lua_tmpnam(b,e) { \ @@ -593,6 +612,30 @@ #endif + +/* +@@ lua_popen spawns a new process connected to the current one through +@* the file streams. +** CHANGE it if you have a way to implement it in your system. +*/ +#if !defined(LUA_ANSI) && defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 2 + +#define lua_popen(L,c,m) popen(c,m) +#define lua_pclose(L,file) (pclose(file) != -1) + +#elif !defined(LUA_ANSI) && defined(_WIN32) + +#define lua_popen(L,c,m) _popen(c,m) +#define lua_pclose(L,file) (_pclose(file) != -1) + +#else + +#define lua_popen(L,c,m) \ + ((void)c, (void)m, luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0) +#define lua_pclose(L,file) ((void)file, 0) + +#endif + /* @@ LUA_DL_* define which dynamic-library system Lua should use. ** CHANGE here if Lua has problems choosing the appropriate @@ -606,7 +649,7 @@ ** If you do not want any kind of dynamic library, undefine all these ** options (or just remove these definitions). */ -#if !defined(__STRICT_ANSI__) +#if !defined(LUA_ANSI) #if defined(_WIN32) #define LUA_DL_DLL #elif defined(__APPLE__) && defined(__MACH__) @@ -618,29 +661,6 @@ /* -@@ lua_lock/lua_unlock are macros for thread synchronization inside the -@* Lua core. This is an attempt to simplify the implementation of a -@* multithreaded version of Lua. -** CHANGE them only if you know what you are doing. All accesses to -** the global state and to global objects are synchronized. Because -** threads can read the stack of other threads (when running garbage -** collection), a thread must also synchronize any write-access to its -** own stack. Unsynchronized accesses are allowed only when reading its -** own stack, or when reading immutable fields from global objects (such -** as string values and udata values). -*/ -#define lua_lock(L) ((void) 0) -#define lua_unlock(L) ((void) 0) - - -/* -@@ lua_threadyield allows a thread switch in appropriate places in the core. -** CHANGE it only if you know what you are doing. (See lua_lock.) -*/ -#define luai_threadyield(L) {lua_unlock(L); lua_lock(L);} - - -/* @@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State @* (the data goes just *before* the lua_State pointer). ** CHANGE (define) this if you really need that. This value must be @@ -650,11 +670,15 @@ /* -@@ luai_userstateopen allows user-specific initialization on new threads. -** CHANGE it if you defined LUAI_EXTRASPACE and need to initialize that -** data whenever a new lua_State is created. +@@ luai_userstate* allow user-specific actions on threads. +** CHANGE them if you defined LUAI_EXTRASPACE and need to do something +** extra when a thread is created/deleted/resumed/yielded. */ -#define luai_userstateopen(L) ((void)0) +#define luai_userstateopen(L) ((void)0) +#define luai_userstatefree(L) ((void)0) +#define luai_userstateresume(L,n) ((void)0) +#define luai_userstateyield(L,n) ((void)0) + @@ -668,3 +692,4 @@ #endif + |