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standard configuration should run out-of-the-box in "any" system

This commit is contained in:
Roberto Ierusalimschy 2005-03-29 11:30:16 -03:00
parent ade585bdf9
commit 1c9c886974
2 changed files with 200 additions and 126 deletions
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21
loadlib.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: loadlib.c,v 1.21 2005/03/09 16:28:07 roberto Exp roberto $ ** $Id: loadlib.c,v 1.22 2005/03/18 16:38:43 roberto Exp roberto $
** Dynamic library loader for Lua ** Dynamic library loader for Lua
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
** **
@ -44,7 +44,7 @@ static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym);
#if defined(LUA_USE_DLOPEN) #if defined(LUA_DL_DLOPEN)
/* /*
** {======================================================================== ** {========================================================================
** This is an implementation of loadlib based on the dlfcn interface. ** This is an implementation of loadlib based on the dlfcn interface.
@ -78,7 +78,7 @@ static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
#elif defined(LUA_USE_DLL) #elif defined(LUA_DL_DLL)
/* /*
** {====================================================================== ** {======================================================================
** This is an implementation of loadlib for Windows using native functions. ** This is an implementation of loadlib for Windows using native functions.
@ -93,7 +93,7 @@ static void pusherror (lua_State *L) {
char buffer[128]; char buffer[128];
if (FormatMessage(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM, if (FormatMessage(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM,
NULL, error, 0, buffer, sizeof(buffer), NULL)) NULL, error, 0, buffer, sizeof(buffer), NULL))
lua_pushstring(L,buffer); lua_pushstring(L, buffer);
else else
lua_pushfstring(L, "system error %d\n", error); lua_pushfstring(L, "system error %d\n", error);
} }
@ -120,7 +120,7 @@ static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
#elif defined(LUA_USE_DYLD) #elif defined(LUA_DL_DYLD)
/* /*
** {====================================================================== ** {======================================================================
** Native Mac OS X / Darwin Implementation ** Native Mac OS X / Darwin Implementation
@ -212,6 +212,13 @@ static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
#define LIB_FAIL "absent" #define LIB_FAIL "absent"
#if defined(__ELF__) || defined(__sun) || defined(sgi) || defined(__hpux)
#define DLMSG "your system was not properly installed, " \
"so it cannot run `loadlib'; check your installation"
#else
#define DLMSG "`loadlib' not supported"
#endif
static void ll_unloadlib (void *lib) { static void ll_unloadlib (void *lib) {
(void)lib; /* to avoid warnings */ (void)lib; /* to avoid warnings */
} }
@ -219,14 +226,14 @@ static void ll_unloadlib (void *lib) {
static void *ll_load (lua_State *L, const char *path) { static void *ll_load (lua_State *L, const char *path) {
(void)path; /* to avoid warnings */ (void)path; /* to avoid warnings */
lua_pushliteral(L,"`loadlib' not supported"); lua_pushliteral(L, DLMSG);
return NULL; return NULL;
} }
static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) { static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) {
(void)lib; (void)sym; /* to avoid warnings */ (void)lib; (void)sym; /* to avoid warnings */
lua_pushliteral(L,"`loadlib' not supported"); lua_pushliteral(L, DLMSG);
return NULL; return NULL;
} }

305
luaconf.h
View File

@ -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 ** Configuration file for Lua
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -24,10 +24,10 @@
/* /*
*@ LUA_PATH_DEFAULT is the default path that Lua uses to look for @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
** Lua libraries. @* Lua libraries.
*@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
** C libraries. @* C libraries.
** CHANGE them if your machine has a non-conventional directory ** CHANGE them if your machine has a non-conventional directory
** hierarchy or if you want to install your libraries in ** hierarchy or if you want to install your libraries in
** non-conventional directories. ** 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 ** CHANGE it if your machine does not use "/" as the directory separator
** and is not Windows. (On Windows Lua automatically uses "\".) ** 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 ** CHANGE it if for some reason your system cannot use a
** semicolon. (E.g., a semicolon may be a too common character in ** semicolon. (E.g., a semicolon may be a too common character in
** file/directory names.) Probably you do not need to change this. ** 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 @@ LUA_PATH_MARK is ths string that marks the substitution points in a
** template. @* template.
** CHANGE it if for some reason your system cannot use an interogation ** 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 ** mark. (E.g., an interogation mark may be a too common character in
** file/directory names.) Probably you do not need to change this. ** 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 ** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
** machines, ptrdiff_t gives a good choice between int or long.) ** 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. @@ LUA_API is a mark for all core API functions.
*@ LUALIB_API is a mark for all standard library functions. @@ LUALIB_API is a mark for all standard library functions.
** CHANGE them if you need to define those functions in some special way. ** 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 ** 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 ** core, the other with the libraries, you may want to use the following
** definition: ** definition (define LUA_BUILD_AS_DLL to get it).
**
** #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
*/ */
#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 LUA_API extern
#define LUALIB_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. ** CHANGE that only if you need to debug Lua.
*/ */
#define lua_assert(c) ((void)0) #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 <unistd.h> #include <unistd.h>
#define lua_stdin_is_tty() isatty(0) #define lua_stdin_is_tty() isatty(0)
#elif defined(_WIN32) #elif !defined(__STRICT_ANSI__) && defined(_WIN32)
#include <io.h> #include <io.h>
#include <stdio.h> #include <stdio.h>
#define lua_stdin_is_tty() _isatty(_fileno(stdin)) #define lua_stdin_is_tty() _isatty(_fileno(stdin))
@ -143,46 +154,80 @@
#endif #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_PROMPT "> "
#define LUA_PROMPT2 ">> " #define LUA_PROMPT2 ">> "
#define LUA_PROGNAME "lua"
/* /*
*@ LUA_MAXINPUT is the maximum length for an input line @@ 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
** CHANGE it if you need longer lines. ** CHANGE it if you need longer lines.
*/ */
#define LUA_MAXINPUT 512 #define LUA_MAXINPUT 512
/* /*
*@ lua_readline defines how to show a prompt and then read a line from @@ lua_readline defines how to show a prompt and then read a line from
** the standard input. @* the standard input.
*@ lua_saveline defines how to "save" a read line. @@ 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 ** CHANGE them if you want to improve this functionality (e.g., using GNU
** readline and history facilities). (Lua already tries to use those ** readline and history facilities).
** facilities when it detects a GNU compiler.)
*/ */
#ifdef __GNUC__ #if !defined(__STRICT_ANSI__) && defined(LUA_USE_READLINE)
#include <stdio.h>
#include <readline/readline.h> #include <readline/readline.h>
#include <readline/history.h> #include <readline/history.h>
#define lua_readline(L,b,p) (((b)=readline(p)) != NULL) #define lua_readline(L,b,p) (((b)=readline(p)) != NULL)
#define lua_saveline(L,idx) \ #define lua_saveline(L,idx) \
if (lua_strlen(L,idx) > 0) /* non-empty line? */ \ if (lua_strlen(L,idx) > 0) /* non-empty line? */ \
add_history(lua_tostring(L, idx)); /* add it to history */ add_history(lua_tostring(L, idx)); /* add it to history */
#define lua_freeline(L,b) free(b)
#else #else
#define lua_readline(L,b,p) \ #define lua_readline(L,b,p) \
(fputs(p, stdout), fflush(stdout), /* show prompt */ \ (fputs(p, stdout), fflush(stdout), /* show prompt */ \
fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */ fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */
#define lua_saveline(L,idx) ((void)0) #define lua_saveline(L,idx) ((void)0)
#define lua_freeline(L,b) ((void)0)
#endif #endif
#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 ** CHANGE here (undefining both luaL_getn and luaL_setn) if you want
** exact compatibility with the behavior of setn/getn in Lua 5.0. ** 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 ** 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 ** 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 ** a bit, but may be quite useful when debugging C code that interfaces
** with Lua. A useful redefinition may be like this: ** with Lua. A useful redefinition is to use assert.h.
**
** #include <assert.h>
** #define luai_apicheck(L,o) assert(o)
**
** (By default lua_assert is empty, so luai_apicheck is also empty.)
*/ */
#if defined(LUA_USE_APICHECK)
#include <assert.h>
#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) #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 ** CHANGE here if Lua cannot automatically detect the number of bits of
** your machine. (In that case, simply define LUA_BITSINT.) Probably you ** your machine. Probably you do not need to change this.
** do not need to change this.
*/ */
/* avoid overflows in comparison */ /* avoid overflows in comparison */
#if INT_MAX-20 < 32760 #if INT_MAX-20 < 32760
@ -222,16 +269,16 @@
/* /*
*@ LUAI_UINT32 is an unsigned integer with at least 32 bits. @@ LUAI_UINT32 is an unsigned integer with at least 32 bits.
*@ LUAI_INT32 is an signed 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 @@ LUAI_UMEM is an an unsigned integer big enough to count the total
** memory used by Lua. @* memory used by Lua.
*@ LUAI_MEM is an a signed integer big enough to count the total memory @@ LUAI_MEM is an a signed integer big enough to count the total memory
** used by Lua. @* used by Lua.
** CHANGE here if for some weird reason the default definitions are not ** CHANGE here if for some weird reason the default definitions are not
** good enough for your machine. The `else' definition always works, but ** good enough for your machine. (The `else' definition always works,
** may waste space on machines with 64-bit longs. Probably you do not ** but may waste space on machines with 64-bit longs.) Probably you do
** need to change this. ** not need to change this.
*/ */
#if LUAI_BITSINT >= 32 #if LUAI_BITSINT >= 32
#define LUAI_UINT32 unsigned int #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 ** CHANGE it if you need really deep recursive calls. This limit is
** arbitrary; its only purpose is to stop infinite recursion before ** arbitrary; its only purpose is to stop infinite recursion before
** exhausting memory. ** 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 ** 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. This limit is arbitrary; its only purpose is to stop C
** functions to consume unlimited stack space. ** 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 #define LUAI_MAXCCALLS 200
/* /*
*@ LUAI_MAXPARSERLEVEL is the maximum number of syntactical nested @@ LUAI_MAXPARSERLEVEL is the maximum number of syntactical nested
** non-terminals in a program. @* non-terminals in a program.
*/ */
#define LUAI_MAXPARSERLEVEL 200 #define LUAI_MAXPARSERLEVEL 200
/* /*
*@ LUAI_MAXVARS is the maximum number of local variables per function @@ LUAI_MAXVARS is the maximum number of local variables per function
** (must be smaller than 250). @* (must be smaller than 250).
*/ */
#define LUAI_MAXVARS 200 #define LUAI_MAXVARS 200
/* /*
*@ LUAI_MAXUPVALUES is the maximum number of upvalues per function @@ LUAI_MAXUPVALUES is the maximum number of upvalues per function
** (must be smaller than 250). @* (must be smaller than 250).
*/ */
#define LUAI_MAXUPVALUES 60 #define LUAI_MAXUPVALUES 60
/* /*
*@ LUAI_MAXEXPWHILE is the maximum size of code for expressions @@ LUAI_MAXEXPWHILE is the maximum size of code for expressions
** controling a `while' loop. @* controling a `while' loop.
*/ */
#define LUAI_MAXEXPWHILE 100 #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 #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 ** 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 ** 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. ** in C is extremely slow, so any alternative is worth trying.
*/ */
/* On a GNU/Pentium, resort to assembler */ /* 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") #define lua_number2int(i,d) __asm__ ("fistpl %0":"=m"(i):"t"(d):"st")
/* On Windows/Pentium, resort to assembler */ /* 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) #pragma warning(disable: 4514)
__inline int l_lrint (double flt) __inline int l_lrint (double flt)
{ int i; { int i;
@ -351,7 +398,8 @@ __inline int l_lrint (double flt)
#define lua_number2int(i,d) ((i)=l_lrint((d))) #define lua_number2int(i,d) ((i)=l_lrint((d)))
/* on Pentium machines compliant with C99, you can try lrint */ /* 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)) #define lua_number2int(i,d) ((i)=lrint(d))
/* this option always work, but may be slow */ /* 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). ** CHANGE (see lua_number2int).
*/ */
/* On a GNU or Windows/Pentium, resort to assembler */ /* 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. @@ LUA_NUMBER is the type of numbers in Lua.
*@ LUAI_UACNUMBER is the result of an `usual argument conversion' @@ LUAI_UACNUMBER is the result of an `usual argument conversion'
** over a number. @* over a number.
*/ */
#define LUA_NUMBER double #define LUA_NUMBER double
#define LUAI_UACNUMBER LUA_NUMBER #define LUAI_UACNUMBER LUA_NUMBER
/* /*
*@ LUA_NUMBER_SCAN is the format for reading numbers. @@ LUA_NUMBER_SCAN is the format for reading numbers.
*@ LUA_NUMBER_FMT is the format for writing numbers. @@ LUA_NUMBER_FMT is the format for writing numbers.
*@ lua_number2str converts a number to a string. @@ lua_number2str converts a number to a string.
*@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. @@ LUAI_MAXNUMBER2STR is maximum size of previous conversion.
*@ lua_str2number converts a string to a number. @@ lua_str2number converts a string to a number.
*/ */
#define LUA_NUMBER_SCAN "%lf" #define LUA_NUMBER_SCAN "%lf"
#define LUA_NUMBER_FMT "%.14g" #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_numadd(a,b) ((a)+(b))
#define luai_numsub(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 ** CHANGE it if your system requires alignments larger than double. (For
** instance, if your system supports long double and those long doubles ** instance, if your system supports long double and those long doubles
** must be aligned in 16-byte boundaries, then you should add long ** 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. @@ LUAI_THROW/LUAI_TRY define how Lua does exception handling.
** CHANGE them if you prefer to use longjmp/setjmp even with C++. By ** CHANGE them if you prefer to use longjmp/setjmp even with C++ or
** default, Lua handles errors with longjmp/setjmp when compiling as C ** if want/don't want to use _longjmp/_setjmp instead of regular
** code and with exceptions when compiling as C++ code. ** 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 #if defined(__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
/* C++ exceptions */ /* C++ exceptions */
#define LUAI_THROW(L,c) throw(c) #define LUAI_THROW(L,c) throw(c)
#define LUAI_TRY(L,c,a) try { a } catch(...) \ #define LUAI_TRY(L,c,a) try { a } catch(...) \
{ if ((c)->status == 0) (c)->status = -1; } { if ((c)->status == 0) (c)->status = -1; }
#define luai_jmpbuf int /* dummy variable */ #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 #endif
/* /*
*@ LUA_MAXCAPTURES is the maximum number of captures that a pattern @@ LUA_MAXCAPTURES is the maximum number of captures that a pattern
** can do during pattern-matching. @* can do during pattern-matching.
** CHANGE it if you need more captures. This limit is arbitrary. ** CHANGE it if you need more captures. This limit is arbitrary.
*/ */
#define LUA_MAXCAPTURES 32 #define LUA_MAXCAPTURES 32
/* /*
*@ lua_tmpnam is the function that the OS library uses to create a @@ lua_tmpnam is the function that the OS library uses to create a
** temporary name. @* temporary name.
** CHANGE it if you have an alternative to tmpnam (which is considered @@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam.
** insecure) or if you want the original tmpnam anyway. By default, ** CHANGE them if you have an alternative to tmpnam (which is considered
** Lua uses tmpnam except when compiled when POSIX is available, where ** insecure) or if you want the original tmpnam anyway. By default, Lua
** it uses mkstemp. ** 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 <unistd.h> #include <unistd.h>
#define LUA_TMPNAMBUFSIZE 32 #define LUA_TMPNAMBUFSIZE 32
#define lua_tmpnam(b,e) { \ #define lua_tmpnam(b,e) { \
@ -487,29 +547,36 @@ __inline int l_lrint (double flt)
#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); } #define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); }
#endif #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 ** CHANGE here if Lua has problems choosing the appropriate
** dynamic-library system for your platform (either Windows' DLL, Mac's ** 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 ** 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 ** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for
** to adapt also the makefile.) If you do not want any kind of dynamic ** it. To use dlopen you also need to adapt the makefile (probably
** library, undefine all these options (or just remove these definitions). ** 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) #if defined(_WIN32)
#define LUA_USE_DLL #define LUA_DL_DLL
#elif defined(__APPLE__) && defined(__MACH__) #elif defined(__APPLE__) && defined(__MACH__)
#define LUA_USE_DYLD #define LUA_DL_DYLD
#elif defined(__linux) || defined(sun) || defined(sgi) || defined(BSD) #elif defined(LUA_USE_DLOPEN)
#define LUA_USE_DLOPEN #define LUA_DL_DLOPEN
#endif
#endif #endif
/* /*
*@ lua_lock/lua_unlock are macros for thread synchronization inside the @@ lua_lock/lua_unlock are macros for thread synchronization inside the
** Lua core. This is an attempt to simplify the implementation of a @* Lua core. This is an attempt to simplify the implementation of a
** multithreaded version of Lua. @* multithreaded version of Lua.
** CHANGE them only if you know what you are doing. all accesses to ** CHANGE them only if you know what you are doing. all accesses to
** the global state and to global objects are synchronized. Because ** the global state and to global objects are synchronized. Because
** threads can read the stack of other threads (when running garbage ** 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.) ** CHANGE it only if you know what you are doing. (See lua_lock.)
*/ */
#define luai_threadyield(L) {lua_unlock(L); lua_lock(L);} #define luai_threadyield(L) {lua_unlock(L); lua_lock(L);}
/* /*
*@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State @@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State
** (the data goes just *before* the lua_State pointer). @* (the data goes just *before* the lua_State pointer).
** CHANGE (define) this if you really need that. This value must be ** CHANGE (define) this if you really need that. This value must be
** a multiple of the maximum alignment required for your machine. ** 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 ** CHANGE it if you defined LUAI_EXTRASPACE and need to initialize that
** data whenever a new lua_State is created. ** data whenever a new lua_State is created.
*/ */