From 1c9c8869741897d67b64a27410f3856d34415e87 Mon Sep 17 00:00:00 2001 From: Roberto Ierusalimschy Date: Tue, 29 Mar 2005 11:30:16 -0300 Subject: standard configuration should run out-of-the-box in "any" system --- luaconf.h | 305 ++++++++++++++++++++++++++++++++++++++------------------------ 1 file changed, 186 insertions(+), 119 deletions(-) (limited to 'luaconf.h') diff --git a/luaconf.h b/luaconf.h index fe26dc2b..2a9a22fc 100644 --- a/luaconf.h +++ b/luaconf.h @@ -1,5 +1,5 @@ /* -** $Id: luaconf.h,v 1.37 2005/03/18 18:55:45 roberto Exp roberto $ +** $Id: luaconf.h,v 1.38 2005/03/21 18:12:07 roberto Exp roberto $ ** Configuration file for Lua ** See Copyright Notice in lua.h */ @@ -24,10 +24,10 @@ /* -*@ 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 -** C libraries. +@@ 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 +@* C libraries. ** CHANGE them if your machine has a non-conventional directory ** hierarchy or if you want to install your libraries in ** non-conventional directories. @@ -53,7 +53,7 @@ /* -*@ LUA_DIRSEP is the directory separator (for submodules). +@@ LUA_DIRSEP is the directory separator (for submodules). ** CHANGE it if your machine does not use "/" as the directory separator ** and is not Windows. (On Windows Lua automatically uses "\".) */ @@ -65,7 +65,7 @@ /* -*@ LUA_PATHSEP is the character that separates templates in a path. +@@ 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., a semicolon may be a too common character in ** file/directory names.) Probably you do not need to change this. @@ -74,8 +74,8 @@ /* -*@ LUA_PATH_MARK is ths string that marks the substitution points in a -** template. +@@ LUA_PATH_MARK is ths string that marks the substitution points in a +@* template. ** CHANGE it if for some reason your system cannot use an interogation ** mark. (E.g., an interogation mark may be a too common character in ** file/directory names.) Probably you do not need to change this. @@ -84,7 +84,7 @@ /* -*@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. +@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. ** CHANGE that if ptrdiff_t is not adequate on your machine. (On most ** machines, ptrdiff_t gives a good choice between int or long.) */ @@ -92,30 +92,36 @@ /* -*@ LUA_API is a mark for all core API functions. -*@ LUALIB_API is a mark for all standard library functions. +@@ LUA_API is a mark for all core API functions. +@@ LUALIB_API is a mark for all standard library functions. ** CHANGE them if you need to define those functions in some special way. ** For instance, if you want to create two Windows DLLs, one with the ** core, the other with the libraries, you may want to use the following -** definition: -** -** #ifdef LUA_CORE -** #define LUA_API __declspec(__dllexport) -** #else -** #define LUA_API __declspec(__dllimport) -** #endif -** #ifdef LUA_LIB -** #define LUALIB_API __declspec(__dllexport) -** #else -** #define LUALIB_API __declspec(__dllimport) -** #endif +** definition (define LUA_BUILD_AS_DLL to get it). */ +#if defined (LUA_BUILD_AS_DLL) + +#if defined(LUA_CORE) +#define LUA_API __declspec(__dllexport) +#else +#define LUA_API __declspec(__dllimport) +#endif +#if defined(LUA_LIB) +#define LUALIB_API __declspec(__dllexport) +#else +#define LUALIB_API __declspec(__dllimport) +#endif + +#else + #define LUA_API extern #define LUALIB_API extern +#endif + /* -*@ lua_assert describes the internal assertions in Lua. +@@ lua_assert describes the internal assertions in Lua. ** CHANGE that only if you need to debug Lua. */ #define lua_assert(c) ((void)0) @@ -128,13 +134,18 @@ ** =================================================================== */ -#ifdef lua_c +#if defined(lua_c) || defined(luaall_c) -/* CONFIG: definition of isatty */ -#ifdef _POSIX_C_SOURCE +/* +@@ lua_stdin_is_tty is a function to detect whether the standard input is +@* a `tty' (that is, is interactive). +** CHANGE it if you have a better definition for non-POSIX/non-Windows +** systems. +*/ +#if !defined(__STRICT_ANSI__) && defined(_POSIX_C_SOURCE) #include #define lua_stdin_is_tty() isatty(0) -#elif defined(_WIN32) +#elif !defined(__STRICT_ANSI__) && defined(_WIN32) #include #include #define lua_stdin_is_tty() _isatty(_fileno(stdin)) @@ -143,46 +154,80 @@ #endif +/* +@@ LUA_PROMPT is the default prompt used by stand-alone Lua. +@@ LUA_PROMPT2 is the default continuation prompt used by stand-alone Lua. +** CHANGE them if you want different prompts. (You can also change the +** prompts dynamically, assigning to globals _PROMPT/_PROMPT2.) +*/ #define LUA_PROMPT "> " #define LUA_PROMPT2 ">> " + + +/* +@@ LUA_PROGNAME is the default name for the stand-alone Lua program. +** CHANGE it if your stand-alone interpreter has a different name and +** your system is not able to detect that name automatically. +*/ #define LUA_PROGNAME "lua" + /* -*@ LUA_MAXINPUT is the maximum length for an input line +@@ LUA_MAXINPUT is the maximum length for an input line ** CHANGE it if you need longer lines. */ #define LUA_MAXINPUT 512 /* -*@ lua_readline defines how to show a prompt and then read a line from -** the standard input. -*@ lua_saveline defines how to "save" a read line. +@@ lua_readline defines how to show a prompt and then read a line from +@* the standard input. +@@ lua_saveline defines how to "save" a read line. +@@ lua_freeline defines how to free a line read by lua_readline. ** CHANGE them if you want to improve this functionality (e.g., using GNU -** readline and history facilities). (Lua already tries to use those -** facilities when it detects a GNU compiler.) +** readline and history facilities). */ -#ifdef __GNUC__ +#if !defined(__STRICT_ANSI__) && defined(LUA_USE_READLINE) +#include #include #include #define lua_readline(L,b,p) (((b)=readline(p)) != NULL) #define lua_saveline(L,idx) \ if (lua_strlen(L,idx) > 0) /* non-empty line? */ \ add_history(lua_tostring(L, idx)); /* add it to history */ +#define lua_freeline(L,b) free(b) #else #define lua_readline(L,b,p) \ (fputs(p, stdout), fflush(stdout), /* show prompt */ \ fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */ #define lua_saveline(L,idx) ((void)0) +#define lua_freeline(L,b) ((void)0) #endif - - #endif /* }================================================================== */ +/* +@@ 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.) +*/ +#define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */ + + +/* +@@ LUAI_GCMUL defines the 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.) +*/ +#define LUAI_GCMUL 200 /* GC runs `twice the speed' of memory allocation */ + + /* ** CHANGE here (undefining both luaL_getn and luaL_setn) if you want ** exact compatibility with the behavior of setn/getn in Lua 5.0. @@ -192,23 +237,25 @@ /* +@@ 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 ** a bit, but may be quite useful when debugging C code that interfaces -** with Lua. A useful redefinition may be like this: -** -** #include -** #define luai_apicheck(L,o) assert(o) -** -** (By default lua_assert is empty, so luai_apicheck is also empty.) +** with Lua. A useful redefinition is to use assert.h. */ +#if defined(LUA_USE_APICHECK) +#include +#define luai_apicheck(L,o) assert(o) +#else +/* (By default lua_assert is empty, so luai_apicheck is also empty.) */ #define luai_apicheck(L,o) lua_assert(o) +#endif /* +@@ LUAI_BITSINT defines the number of bits in an int. ** CHANGE here if Lua cannot automatically detect the number of bits of -** your machine. (In that case, simply define LUA_BITSINT.) Probably you -** do not need to change this. +** your machine. Probably you do not need to change this. */ /* avoid overflows in comparison */ #if INT_MAX-20 < 32760 @@ -222,16 +269,16 @@ /* -*@ LUAI_UINT32 is an unsigned integer with at least 32 bits. -*@ LUAI_INT32 is an signed integer with at least 32 bits. -*@ LUAI_UMEM is an an unsigned integer big enough to count the total -** memory used by Lua. -*@ LUAI_MEM is an a signed integer big enough to count the total memory -** used by Lua. +@@ LUAI_UINT32 is an unsigned integer with at least 32 bits. +@@ LUAI_INT32 is an signed integer with at least 32 bits. +@@ LUAI_UMEM is an an unsigned integer big enough to count the total +@* memory used by Lua. +@@ LUAI_MEM is an a signed integer big enough to count the total memory +@* used by Lua. ** CHANGE here if for some weird reason the default definitions are not -** good enough for your machine. The `else' definition always works, but -** may waste space on machines with 64-bit longs. Probably you do not -** need to change this. +** good enough for your machine. (The `else' definition always works, +** but may waste space on machines with 64-bit longs.) Probably you do +** not need to change this. */ #if LUAI_BITSINT >= 32 #define LUAI_UINT32 unsigned int @@ -250,7 +297,7 @@ /* -*@ LUAI_MAXCALLS limits the number of nested calls. +@@ LUAI_MAXCALLS limits the number of nested calls. ** CHANGE it if you need really deep recursive calls. This limit is ** arbitrary; its only purpose is to stop infinite recursion before ** exhausting memory. @@ -259,7 +306,7 @@ /* -*@ LUAI_MAXCSTACK limits the number of slots that a C function can use. +@@ LUAI_MAXCSTACK limits the number of slots that a C function can use. ** CHANGE it if you need lots of (Lua) stack space for your C ** functions. This limit is arbitrary; its only purpose is to stop C ** functions to consume unlimited stack space. @@ -283,41 +330,41 @@ /* -*@ LUAI_MAXCCALLS is the maximum depth for nested C calls (unsigned short). +@@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short). */ #define LUAI_MAXCCALLS 200 /* -*@ LUAI_MAXPARSERLEVEL is the maximum number of syntactical nested -** non-terminals in a program. +@@ LUAI_MAXPARSERLEVEL is the maximum number of syntactical nested +@* non-terminals in a program. */ #define LUAI_MAXPARSERLEVEL 200 /* -*@ LUAI_MAXVARS is the maximum number of local variables per function -** (must be smaller than 250). +@@ LUAI_MAXVARS is the maximum number of local variables per function +@* (must be smaller than 250). */ #define LUAI_MAXVARS 200 /* -*@ LUAI_MAXUPVALUES is the maximum number of upvalues per function -** (must be smaller than 250). +@@ LUAI_MAXUPVALUES is the maximum number of upvalues per function +@* (must be smaller than 250). */ #define LUAI_MAXUPVALUES 60 /* -*@ LUAI_MAXEXPWHILE is the maximum size of code for expressions -** controling a `while' loop. +@@ 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. +@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. */ #define LUAL_BUFFERSIZE BUFSIZ @@ -326,19 +373,19 @@ /* -*@ lua_number2int is a macro to convert lua_Number to int. +@@ 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 ** int (with any rounding method and without throwing errors) in your -** system. In Pentium machines, a naive typecast from doulbe to int +** system. In Pentium machines, a naive typecast from double to int ** in C is extremely slow, so any alternative is worth trying. */ /* On a GNU/Pentium, resort to assembler */ -#if defined(__GNUC__) && defined(__i386) +#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(_MSC_VER) && defined(_M_IX86) +#elif !defined(__STRICT_ANSI__) && defined(_MSC_VER) && defined(_M_IX86) #pragma warning(disable: 4514) __inline int l_lrint (double flt) { int i; @@ -351,7 +398,8 @@ __inline int l_lrint (double flt) #define lua_number2int(i,d) ((i)=l_lrint((d))) /* on Pentium machines compliant with C99, you can try lrint */ -#elif defined (__i386) && defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199900L) +#elif defined (__i386) && defined(__STDC_VERSION__) && \ + (__STDC_VERSION__ >= 199900L) #define lua_number2int(i,d) ((i)=lrint(d)) /* this option always work, but may be slow */ @@ -362,7 +410,7 @@ __inline int l_lrint (double flt) /* -*@ lua_number2integer is a macro to convert lua_Number to lua_Integer. +@@ lua_number2integer is a macro to convert lua_Number to lua_Integer. ** CHANGE (see lua_number2int). */ /* On a GNU or Windows/Pentium, resort to assembler */ @@ -388,20 +436,20 @@ __inline int l_lrint (double flt) /* -*@ LUA_NUMBER is the type of numbers in Lua. -*@ LUAI_UACNUMBER is the result of an `usual argument conversion' -** over a number. +@@ LUA_NUMBER is the type of numbers in Lua. +@@ LUAI_UACNUMBER is the result of an `usual argument conversion' +@* over a number. */ #define LUA_NUMBER double #define LUAI_UACNUMBER LUA_NUMBER /* -*@ LUA_NUMBER_SCAN is the format for reading numbers. -*@ LUA_NUMBER_FMT is the format for writing numbers. -*@ lua_number2str converts a number to a string. -*@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. -*@ lua_str2number converts a string to a number. +@@ LUA_NUMBER_SCAN is the format for reading numbers. +@@ LUA_NUMBER_FMT is the format for writing numbers. +@@ lua_number2str converts a number to a string. +@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. +@@ lua_str2number converts a string to a number. */ #define LUA_NUMBER_SCAN "%lf" #define LUA_NUMBER_FMT "%.14g" @@ -411,7 +459,7 @@ __inline int l_lrint (double flt) /* -*@ The luai_num* macros define the primitive operations over numbers. +@@ The luai_num* macros define the primitive operations over numbers. */ #define luai_numadd(a,b) ((a)+(b)) #define luai_numsub(a,b) ((a)-(b)) @@ -428,7 +476,7 @@ __inline int l_lrint (double flt) /* -*@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment. +@@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment. ** CHANGE it if your system requires alignments larger than double. (For ** instance, if your system supports long double and those long doubles ** must be aligned in 16-byte boundaries, then you should add long @@ -438,43 +486,55 @@ __inline int l_lrint (double flt) /* -*@ LUAI_THROW/LUAI_TRY define how Lua does exception handling. -** CHANGE them if you prefer to use longjmp/setjmp even with C++. By -** default, Lua handles errors with longjmp/setjmp when compiling as C -** code and with exceptions when compiling as C++ code. +@@ 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 +** 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. */ -#ifndef __cplusplus -/* default handling with long jumps */ -#define LUAI_THROW(L,c) longjmp((c)->b, 1) -#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a } -#define luai_jmpbuf jmp_buf - -#else +#if defined(__cplusplus) /* C++ exceptions */ #define LUAI_THROW(L,c) throw(c) #define LUAI_TRY(L,c,a) try { a } catch(...) \ { if ((c)->status == 0) (c)->status = -1; } #define luai_jmpbuf int /* dummy variable */ + +#elif !defined(__STRICT_ANSI__) && (defined(unix) || defined(__unix) || \ + defined(__unix__)) +/* 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 } +#define luai_jmpbuf jmp_buf + +#else +/* default handling with long jumps */ +#define LUAI_THROW(L,c) longjmp((c)->b, 1) +#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a } +#define luai_jmpbuf jmp_buf + #endif /* -*@ LUA_MAXCAPTURES is the maximum number of captures that a pattern -** can do during pattern-matching. +@@ LUA_MAXCAPTURES is the maximum number of captures that a pattern +@* can do during pattern-matching. ** CHANGE it if you need more captures. This limit is arbitrary. */ #define LUA_MAXCAPTURES 32 /* -*@ lua_tmpnam is the function that the OS library uses to create a -** temporary name. -** CHANGE it if you have an alternative to tmpnam (which is considered -** insecure) or if you want the original tmpnam anyway. By default, -** Lua uses tmpnam except when compiled when POSIX is available, where -** it uses mkstemp. +@@ lua_tmpnam is the function that the OS library uses to create a +@* temporary name. +@@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam. +** CHANGE them if you have an alternative to tmpnam (which is considered +** insecure) or if you want the original tmpnam anyway. By default, Lua +** uses tmpnam except when POSIX is available, where it uses mkstemp. */ -#ifdef _POSIX_C_SOURCE +#if defined(loslib_c) || defined(luaall_c) + +#if !defined(__STRICT_ANSI__) && defined(_POSIX_C_SOURCE) #include #define LUA_TMPNAMBUFSIZE 32 #define lua_tmpnam(b,e) { \ @@ -487,29 +547,36 @@ __inline int l_lrint (double flt) #define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); } #endif +#endif /* -*@ LUA_USE_* define which dynamic-library system Lua should use. +@@ LUA_DL_* define which dynamic-library system Lua should use. ** CHANGE here if Lua has problems choosing the appropriate ** dynamic-library system for your platform (either Windows' DLL, Mac's ** dyld, or Unix's dlopen). If your system is some kind of Unix, there -** is a good chance that LUA_USE_DLOPEN will work for it. (You may need -** to adapt also the makefile.) If you do not want any kind of dynamic -** library, undefine all these options (or just remove these definitions). -*/ +** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for +** it. To use dlopen you also need to adapt the makefile (probably +** adding -ldl to the linker options), so Lua does not select it +** automatically. (When you change the makefile to add -ldl, you must +** also add -DLUA_USE_DLOPEN.) +** 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(_WIN32) -#define LUA_USE_DLL +#define LUA_DL_DLL #elif defined(__APPLE__) && defined(__MACH__) -#define LUA_USE_DYLD -#elif defined(__linux) || defined(sun) || defined(sgi) || defined(BSD) -#define LUA_USE_DLOPEN +#define LUA_DL_DYLD +#elif defined(LUA_USE_DLOPEN) +#define LUA_DL_DLOPEN +#endif #endif /* -*@ 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. +@@ 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 @@ -523,15 +590,15 @@ __inline int l_lrint (double flt) /* -*@ lua_threadyield allows a thread switch in appropriate places in the core. +@@ 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). +@@ 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 ** a multiple of the maximum alignment required for your machine. */ @@ -539,7 +606,7 @@ __inline int l_lrint (double flt) /* -*@ luai_userstateopen allows user-specific initialization on new threads. +@@ 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. */ -- cgit v1.2.3-55-g6feb