83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
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/*
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* NodeMCU extensions to Lua 5.3 for readonly Flash memory support
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*/
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#ifndef lnodemcu_h
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#define lnodemcu_h
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#include "lua.h"
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#include "lobject.h"
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#include "llimits.h"
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#include "ltm.h"
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#ifdef LUA_USE_HOST
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#define LRO_STRKEY(k) k
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#define LOCK_IN_SECTION(s)
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#else
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#define LRO_STRKEY(k) ((__attribute__((aligned(4))) const char *) k)
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#define LOCK_IN_SECTION(s) __attribute__((used,unused,section(".lua_" #s)))
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#endif
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/* Macros used to declare rotable entries */
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#define LRO_FUNCVAL(v) {{.f = v}, LUA_TLCF}
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#define LRO_LUDATA(v) {{.p = (void *) v}, LUA_TLIGHTUSERDATA}
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#define LRO_NILVAL {{.p = NULL}, LUA_TNIL}
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#define LRO_NUMVAL(v) {{.i = v}, LUA_TNUMINT}
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#define LRO_INTVAL(v) LRO_NUMVAL(v)
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#define LRO_FLOATVAL(v) {{.n = v}, LUA_TNUMFLT}
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#define LRO_ROVAL(v) {{.gc = cast(GCObject *, &(v ## _ROTable))}, LUA_TTBLROF}
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#define LROT_MARKED 0 //<<<<<<<<<< *** TBD *** >>>>>>>>>>>
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#define LROT_FUNCENTRY(n,f) {LRO_STRKEY(#n), LRO_FUNCVAL(f)},
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#define LROT_LUDENTRY(n,x) {LRO_STRKEY(#n), LRO_LUDATA(x)},
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#define LROT_NUMENTRY(n,x) {LRO_STRKEY(#n), LRO_NUMVAL(x)},
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#define LROT_INTENTRY(n,x) LROT_NUMENTRY(n,x)
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#define LROT_FLOATENTRY(n,x) {LRO_STRKEY(#n), LRO_FLOATVAL(x)},
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#define LROT_TABENTRY(n,t) {LRO_STRKEY(#n), LRO_ROVAL(t)},
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#define LROT_TABLE(rt) const ROTable rt ## _ROTable
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#define LROT_ENTRYREF(rt) (rt ##_entries)
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#define LROT_TABLEREF(rt) (&rt ##_ROTable)
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#define LROT_BEGIN(rt,mt,f) LROT_TABLE(rt); \
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static ROTable_entry rt ## _entries[] = {
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#define LROT_ENTRIES_IN_SECTION(rt,s) \
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static ROTable_entry LOCK_IN_SECTION(s) rt ## _entries[] = {
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#define LROT_END(rt,mt,f) {NULL, LRO_NILVAL} }; \
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const ROTable rt ## _ROTable = { \
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(GCObject *)1, LUA_TTBLROF, LROT_MARKED, \
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cast(lu_byte, ~(f)), (sizeof(rt ## _entries)/sizeof(ROTable_entry)) - 1, \
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cast(Table *, mt), cast(ROTable_entry *, rt ## _entries) };
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#define LROT_BREAK(rt) };
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#define LROT_MASK(m) cast(lu_byte, 1<<TM_ ## m)
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/*
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* These are statically coded can be any combination of the fast index tags
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* listed in ltm.h: EQ, GC, INDEX, LEN, MODE, NEWINDEX or combined by anding
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* GC+INDEX is the only common combination used, hence the combinaton macro
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*/
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#define LROT_MASK_EQ LROT_MASK(EQ)
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#define LROT_MASK_GC LROT_MASK(GC)
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#define LROT_MASK_INDEX LROT_MASK(INDEX)
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#define LROT_MASK_LEN LROT_MASK(LEN)
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#define LROT_MASK_MODE LROT_MASK(MODE)
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#define LROT_MASK_NEWINDEX LROT_MASK(NEWINDEX)
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#define LROT_MASK_GC_INDEX (LROT_MASK_GC | LROT_MASK_INDEX)
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#define LUA_MAX_ROTABLE_NAME 32 /* Maximum length of a rotable name and of a string key*/
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#ifdef LUA_CORE
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#include "lstate.h"
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#include "lzio.h"
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LUAI_FUNC int luaN_init (lua_State *L);
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LUAI_FUNC void *luaN_writeFlash (void *data, const void *rec, size_t n);
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LUAI_FUNC void luaN_flushFlash (void *);
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LUAI_FUNC void luaN_setFlash (void *, unsigned int o);
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#endif
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#endif
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