diff options
Diffstat (limited to 'engines')
| -rw-r--r-- | engines/sword25/util/pluto/pluto.cpp | 539 |
1 files changed, 472 insertions, 67 deletions
diff --git a/engines/sword25/util/pluto/pluto.cpp b/engines/sword25/util/pluto/pluto.cpp index b7f5e30340..fb477c1687 100644 --- a/engines/sword25/util/pluto/pluto.cpp +++ b/engines/sword25/util/pluto/pluto.cpp @@ -1,6 +1,6 @@ /* $Id$ */ -/* Pluto - Heavy-duty persistence for Lua +/* Tamed Pluto - Heavy-duty persistence for Lua * Copyright (C) 2004 by Ben Sunshine-Hill, and released into the public * domain. People making use of this software as part of an application * are politely requested to email the author at sneftel@gmail.com @@ -14,11 +14,16 @@ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Instrumented by Stefan Reich (info@luaos.net) + * for Mobile Lua (http://luaos.net/pages/mobile-lua.php) */ #include "sword25/util/lua/lua.h" #include "pluto.h" +#undef TOTEXT + #define USE_PDEP #ifdef USE_PDEP @@ -42,10 +47,20 @@ #include <string.h> +/* Define this if you want size_t values to be written in 64-bit + (even on 32-bit systems). Should eliminate at least one source of + 32/64 bit incompatibility. */ +#define SIZES64 + /* #define PLUTO_DEBUG */ +#ifdef SIZES64 +#define VERSION "Tamed Pluto 1.0 with SIZES64 flag" +#else +#define VERSION "Tamed Pluto 1.0" +#endif #ifdef PLUTO_DEBUG @@ -56,6 +71,23 @@ #define verify(x) { int v = (int)((x)); v=v; lua_assert(v); } +#define NUMTYPES 9 +static const char* typenames[] = { + "nil", + "boolean", + "lightuserdata", + "number", + "string", + "table", + "function", + "userdata", + "thread" +}; + +static int humanReadable = 0; +#define hrBufSize 200 +static char hrBuf[hrBufSize]; + typedef struct PersistInfo_t { lua_State *L; int counter; @@ -76,6 +108,77 @@ void printindent(int indent) } #endif +/* lua_Chunkwriter signature: (lua_State *L, const void *p, size_t sz, void *ud). + ud is a pointer to the WriterInfo struct (holds the buffer pointer) +*/ + +static void pi_write(PersistInfo *pi, const void *p, size_t size, void *ud) { + if (humanReadable) { + uint i; + snprintf(hrBuf, hrBufSize, " pi_write %d ", (int) size); + pi->writer(pi->L, hrBuf, strlen(hrBuf), ud); + for (i = 0; i < size; i++) { + char b = ((char *)p)[i]; + snprintf(hrBuf, hrBufSize, "%X%X", (b >> 4) & 0xF, b & 0xF); + pi->writer(pi->L, hrBuf, strlen(hrBuf), ud); + } + snprintf(hrBuf, hrBufSize, "\n"); + pi->writer(pi->L, hrBuf, strlen(hrBuf), ud); + } else { + pi->writer(pi->L, p, size, ud); + } +#ifdef TOTEXT + int i; + printf(" pi_write %d ", (int) size); + for (i = 0; i < size; i++) { + char b = ((char *)p)[i]; + printf("%X%X", (b >> 4) & 0xF, b & 0xF); + } + printf("\n"); +#endif +} + +static void hrOut(PersistInfo *pi) { + pi->writer(pi->L, hrBuf, strlen(hrBuf), pi->ud); +} + +static void write_size(PersistInfo *pi, size_t *val) +{ +#ifdef SIZES64 + int64 longval; /* yeah, you really need long long to get 8 bytes on win32... duh. */ + longval = *val; + pi_write(pi, &longval, 8, pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "write_size64 %ld\n", longval); + hrOut(pi); + } +#ifdef TOTEXT + printf("write_size64 %ld\n", longval); +#endif +#else + pi_write(pi, val, sizeof(size_t), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "write_size %ld\n", *((size_t *)val)); + hrOut(pi); + } +#ifdef TOTEXT + printf("write_size %ld\n", *val); +#endif +#endif +} + +static void read_size(ZIO *zio, size_t *val) +{ +#ifdef SIZES64 + int64 longval; + verify(LIF(Z,read)(zio, &longval, 8) == 0); + *val = longval; +#else + verify(LIF(Z,read)(zio, val, sizeof(size_t)) == 0); +#endif +} + + /* Mutual recursion requires prototype */ static void persist(PersistInfo *pi); @@ -107,7 +210,14 @@ static int persistspecialobject(PersistInfo *pi, int defaction) if(defaction) { { int zero = 0; - pi->writer(pi->L, &zero, sizeof(int), pi->ud); + pi_write(pi, &zero, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistspecialobject_write_zero\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistspecialobject_write_zero\n"); +#endif } return 0; } else { @@ -127,7 +237,14 @@ static int persistspecialobject(PersistInfo *pi, int defaction) if(defaction) { { int zero = 0; - pi->writer(pi->L, &zero, sizeof(int), pi->ud); + pi_write(pi, &zero, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistspecialobject_write_zero2\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistspecialobject_write_zero2\n"); +#endif } return 0; } else { @@ -143,7 +260,14 @@ static int persistspecialobject(PersistInfo *pi, int defaction) /* perms reftbl sptbl ... obj */ { int zero = 0; - pi->writer(pi->L, &zero, sizeof(int), pi->ud); + pi_write(pi, &zero, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistspecialobject_write_zero3\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistspecialobject_write_zero3\n"); +#endif } return 0; } else { @@ -176,7 +300,14 @@ static int persistspecialobject(PersistInfo *pi, int defaction) /* perms reftbl ... obj mt func */ { int one = 1; - pi->writer(pi->L, &one, sizeof(int), pi->ud); + pi_write(pi, &one, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistspecialobject_write_one\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistspecialobject_write_one\n"); +#endif } persist(pi); /* perms reftbl ... obj mt func */ @@ -187,6 +318,14 @@ static int persistspecialobject(PersistInfo *pi, int defaction) static void persisttable(PersistInfo *pi) { + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persisttable\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persisttable\n"); +#endif + /* perms reftbl ... tbl */ lua_checkstack(pi->L, 3); if(persistspecialobject(pi, 1)) { @@ -235,8 +374,15 @@ static void persistuserdata(PersistInfo *pi) { } else { /* Use literal persistence */ size_t length = uvalue(getobject(pi->L, -1))->len; - pi->writer(pi->L, &length, sizeof(size_t), pi->ud); - pi->writer(pi->L, lua_touserdata(pi->L, -1), length, pi->ud); + write_size(pi, &length); + pi_write(pi, lua_touserdata(pi->L, -1), length, pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistuserdata %ld\n", (long) length); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistuserdata %ld\n", (long) length); +#endif if(!lua_getmetatable(pi->L, -1)) { /* perms reftbl ... udata */ lua_pushnil(pi->L); @@ -269,8 +415,8 @@ static void pushproto(lua_State *L, Proto *proto) #define setuvvalue(L,obj,x) \ { TValue *i_o=(obj); \ - i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TUPVAL; \ - checkliveness(G(L),i_o); } + i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TUPVAL; \ + checkliveness(G(L),i_o); } static void pushupval(lua_State *L, UpVal *upval) { @@ -309,7 +455,14 @@ static void persistfunction(PersistInfo *pi) { /* We don't really _NEED_ the number of upvals, * but it'll simplify things a bit */ - pi->writer(pi->L, &cl->l.p->nups, sizeof(lu_byte), pi->ud); + pi_write(pi, &cl->l.p->nups, sizeof(lu_byte), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistfunction_number_upvalues %d\n", (int) cl->l.p->nups); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistfunction_number_upvalues %d\n", (int) cl->l.p->nups); +#endif } /* Persist prototype */ { @@ -401,7 +554,14 @@ static void persistproto(PersistInfo *pi) /* Persist constant refs */ { int i; - pi->writer(pi->L, &p->sizek, sizeof(int), pi->ud); + pi_write(pi, &p->sizek, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_sizek %d\n", p->sizek); + hrOut(pi); + } + #ifdef TOTEXT + printf("persistproto_sizek %d\n", p->sizek); + #endif for(i=0; i<p->sizek; i++) { LIF(A,pushobject)(pi->L, &p->k[i]); /* perms reftbl ... proto const */ @@ -415,7 +575,14 @@ static void persistproto(PersistInfo *pi) /* serialize inner Proto refs */ { int i; - pi->writer(pi->L, &p->sizep, sizeof(int), pi->ud); + pi_write(pi, &p->sizep, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_sizep %d\n", p->sizep); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_sizep %d\n", p->sizep); +#endif for(i=0; i<p->sizep; i++) { pushproto(pi->L, p->p[i]); @@ -429,14 +596,37 @@ static void persistproto(PersistInfo *pi) /* Serialize code */ { - pi->writer(pi->L, &p->sizecode, sizeof(int), pi->ud); - pi->writer(pi->L, p->code, sizeof(Instruction) * p->sizecode, pi->ud); + int len; + pi_write(pi, &p->sizecode, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_sizecode %d\n", p->sizecode); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_sizecode %d\n", p->sizecode); +#endif + len = sizeof(Instruction) * p->sizecode; + pi_write(pi, p->code, len, pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_code %d\n", len); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_code %d\n", len); +#endif } /* Serialize upvalue names */ { int i; - pi->writer(pi->L, &p->sizeupvalues, sizeof(int), pi->ud); + pi_write(pi, &p->sizeupvalues, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_upvalues %d\n", p->sizeupvalues); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_upvalues %d\n", p->sizeupvalues); +#endif for(i=0; i<p->sizeupvalues; i++) { pushstring(pi->L, p->upvalues[i]); @@ -447,15 +637,36 @@ static void persistproto(PersistInfo *pi) /* Serialize local variable infos */ { int i; - pi->writer(pi->L, &p->sizelocvars, sizeof(int), pi->ud); + pi_write(pi, &p->sizelocvars, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_sizelocvars %d\n", p->sizelocvars); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_sizelocvars %d\n", p->sizelocvars); +#endif for(i=0; i<p->sizelocvars; i++) { pushstring(pi->L, p->locvars[i].varname); persist(pi); lua_pop(pi->L, 1); - pi->writer(pi->L, &p->locvars[i].startpc, sizeof(int), pi->ud); - pi->writer(pi->L, &p->locvars[i].endpc, sizeof(int), pi->ud); + pi_write(pi, &p->locvars[i].startpc, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_startpc %d\n", p->locvars[i].startpc); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_startpc %d\n", p->locvars[i].startpc); +#endif + pi_write(pi, &p->locvars[i].endpc, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_endpc %d\n", p->locvars[i].endpc); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_endpc %d\n", p->locvars[i].endpc); +#endif } } @@ -466,23 +677,81 @@ static void persistproto(PersistInfo *pi) /* Serialize line numbers */ { - pi->writer(pi->L, &p->sizelineinfo, sizeof(int), pi->ud); + pi_write(pi, &p->sizelineinfo, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_sizelineinfo %d\n", p->sizelineinfo); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_sizelineinfo %d\n", p->sizelineinfo); +#endif if (p->sizelineinfo) { - pi->writer(pi->L, p->lineinfo, sizeof(int) * p->sizelineinfo, pi->ud); + int len; + len = sizeof(int) * p->sizelineinfo; + pi_write(pi, p->lineinfo, len, pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_lineinfo %d\n", len); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_lineinfo %d\n", len); +#endif } } /* Serialize linedefined and lastlinedefined */ - pi->writer(pi->L, &p->linedefined, sizeof(int), pi->ud); - pi->writer(pi->L, &p->lastlinedefined, sizeof(int), pi->ud); + pi_write(pi, &p->linedefined, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_linedefined %d\n", p->linedefined); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_linedefined %d\n", p->linedefined); +#endif + pi_write(pi, &p->lastlinedefined, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_lastlinedefined %d\n", p->lastlinedefined); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_lastlinedefined %d\n", p->lastlinedefined); +#endif /* Serialize misc values */ { - pi->writer(pi->L, &p->nups, sizeof(lu_byte), pi->ud); - pi->writer(pi->L, &p->numparams, sizeof(lu_byte), pi->ud); - pi->writer(pi->L, &p->is_vararg, sizeof(lu_byte), pi->ud); - pi->writer(pi->L, &p->maxstacksize, sizeof(lu_byte), pi->ud); + pi_write(pi, &p->nups, sizeof(lu_byte), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_nups %d\n", (int) p->nups); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_nups %d\n", (int) p->nups); +#endif + pi_write(pi, &p->numparams, sizeof(lu_byte), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_numparams %d\n", (int) p->numparams); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_numparams %d\n", (int) p->numparams); +#endif + pi_write(pi, &p->is_vararg, sizeof(lu_byte), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_is_vararg %d\n", (int) p->is_vararg); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_is_vararg %d\n", (int) p->is_vararg); +#endif + pi_write(pi, &p->maxstacksize, sizeof(lu_byte), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistproto_maxstacksize %d\n", (int) p->maxstacksize); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistproto_maxstacksize %d\n", (int) p->maxstacksize); +#endif } /* We do not currently persist upvalue names, local variable names, * variable lifetimes, line info, or source code. */ @@ -518,7 +787,7 @@ static void persistthread(PersistInfo *pi) /* Persist the stack */ posremaining = revappendstack(L2, pi->L); /* perms reftbl ... thr (rev'ed contents of L2) */ - pi->writer(pi->L, &posremaining, sizeof(size_t), pi->ud); + write_size(pi, &posremaining); for(; posremaining > 0; posremaining--) { persist(pi); lua_pop(pi->L, 1); @@ -527,7 +796,7 @@ static void persistthread(PersistInfo *pi) /* Now, persist the CallInfo stack. */ { size_t i, numframes = (L2->ci - L2->base_ci) + 1; - pi->writer(pi->L, &numframes, sizeof(size_t), pi->ud); + write_size(pi, &numframes); for(i=0; i<numframes; i++) { CallInfo *ci = L2->base_ci + i; size_t stackbase = ci->base - L2->stack; @@ -536,11 +805,18 @@ static void persistthread(PersistInfo *pi) size_t savedpc = (ci != L2->base_ci) ? ci->savedpc - ci_func(ci)->l.p->code : 0; - pi->writer(pi->L, &stackbase, sizeof(size_t), pi->ud); - pi->writer(pi->L, &stackfunc, sizeof(size_t), pi->ud); - pi->writer(pi->L, &stacktop, sizeof(size_t), pi->ud); - pi->writer(pi->L, &ci->nresults, sizeof(int), pi->ud); - pi->writer(pi->L, &savedpc, sizeof(size_t), pi->ud); + write_size(pi, &stackbase); + write_size(pi, &stackfunc); + write_size(pi, &stacktop); + pi_write(pi, &ci->nresults, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistthread %d\n", ci->nresults); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistthread %d\n", ci->nresults); +#endif + write_size(pi, &savedpc); } } @@ -549,10 +825,18 @@ static void persistthread(PersistInfo *pi) size_t stackbase = L2->base - L2->stack; size_t stacktop = L2->top - L2->stack; lua_assert(L2->nCcalls <= 1); - pi->writer(pi->L, &L2->status, sizeof(lu_byte), pi->ud); - pi->writer(pi->L, &stackbase, sizeof(size_t), pi->ud); - pi->writer(pi->L, &stacktop, sizeof(size_t), pi->ud); - pi->writer(pi->L, &L2->errfunc, sizeof(ptrdiff_t), pi->ud); + pi_write(pi, &L2->status, sizeof(lu_byte), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistthread_status %d\n", (int) L2->status); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistthread_status %d\n", (int) L2->status); +#endif + write_size(pi, &stackbase); + write_size(pi, &stacktop); + pi_write(pi, &L2->errfunc, sizeof(ptrdiff_t), pi->ud); + //write_size(pi, (size_t *)&L2->errfunc); } /* Finally, record upvalues which need to be reopened */ @@ -573,7 +857,7 @@ static void persistthread(PersistInfo *pi) lua_pop(pi->L, 1); /* perms reftbl ... thr */ stackpos = uv->v - L2->stack; - pi->writer(pi->L, &stackpos, sizeof(size_t), pi->ud); + write_size(pi, &stackpos); } /* perms reftbl ... thr */ lua_pushnil(pi->L); @@ -588,26 +872,62 @@ static void persistthread(PersistInfo *pi) static void persistboolean(PersistInfo *pi) { int b = lua_toboolean(pi->L, -1); - pi->writer(pi->L, &b, sizeof(int), pi->ud); + pi_write(pi, &b, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistboolean %d\n", b); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistboolean %d\n", b); +#endif } static void persistlightuserdata(PersistInfo *pi) { void *p = lua_touserdata(pi->L, -1); - pi->writer(pi->L, &p, sizeof(void *), pi->ud); + pi_write(pi, &p, sizeof(void *), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistlightuserdata %p\n", p); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistlightuserdata %d\n", (int) p); +#endif } static void persistnumber(PersistInfo *pi) { lua_Number n = lua_tonumber(pi->L, -1); - pi->writer(pi->L, &n, sizeof(lua_Number), pi->ud); + pi_write(pi, &n, sizeof(lua_Number), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persistnumber %d (%d)\n", (int) n, (int) sizeof(lua_Number)); + hrOut(pi); + } +#ifdef TOTEXT + printf("persistnumber %d (%d)\n", (int) n, (int) sizeof(lua_Number)); +#endif } static void persiststring(PersistInfo *pi) { + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persiststring\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persiststring\n"); +#endif size_t length = lua_strlen(pi->L, -1); - pi->writer(pi->L, &length, sizeof(size_t), pi->ud); - pi->writer(pi->L, lua_tostring(pi->L, -1), length, pi->ud); + write_size(pi, &length); + const char* s = lua_tostring(pi->L, -1); + pi_write(pi, s, length, pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persiststring %d \"%s\"\n", (int)length, s); + hrOut(pi); + } +#ifdef TOTEXT + printf("persiststring %d \"%s\"\n", length, s); +#endif } /* Top-level delegating persist function @@ -630,8 +950,22 @@ static void persist(PersistInfo *pi) // since size_t is supposedly the same size as a pointer on most // (modern) architectures. int ref = (int)(size_t)lua_touserdata(pi->L, -1); - pi->writer(pi->L, &zero, sizeof(int), pi->ud); - pi->writer(pi->L, &ref, sizeof(int), pi->ud); + pi_write(pi, &zero, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persist_seenobject\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persist_seenobject\n"); +#endif + pi_write(pi, &ref, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persist_touserdata_ref %d\n", ref); + hrOut(pi); + } +#ifdef TOTEXT + printf("persist_touserdata_ref %d\n", ref); +#endif lua_pop(pi->L, 1); /* perms reftbl ... obj ref */ #ifdef PLUTO_DEBUG @@ -647,9 +981,16 @@ static void persist(PersistInfo *pi) if(lua_isnil(pi->L, -1)) { int zero = 0; /* firsttime */ - pi->writer(pi->L, &zero, sizeof(int), pi->ud); + pi_write(pi, &zero, sizeof(int), pi->ud); /* ref */ - pi->writer(pi->L, &zero, sizeof(int), pi->ud); + pi_write(pi, &zero, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persist_nil (last 2 lines)\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persist_nil (last 2 lines)\n"); +#endif #ifdef PLUTO_DEBUG printindent(pi->level); printf("0 0\n"); @@ -659,7 +1000,14 @@ static void persist(PersistInfo *pi) { /* indicate that it's the first time */ int one = 1; - pi->writer(pi->L, &one, sizeof(int), pi->ud); + pi_write(pi, &one, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persist_newobject\n"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persist_newobject\n"); +#endif } lua_pushvalue(pi->L, -1); /* perms reftbl ... obj obj */ @@ -668,7 +1016,14 @@ static void persist(PersistInfo *pi) lua_rawset(pi->L, 2); /* perms reftbl ... obj */ - pi->writer(pi->L, &pi->counter, sizeof(int), pi->ud); + pi_write(pi, &pi->counter, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persist_counter %d\n", pi->counter); + hrOut(pi); + } +#ifdef TOTEXT + printf("persist_counter %d\n", pi->counter); +#endif /* At this point, we'll give the permanents table a chance to play. */ @@ -685,7 +1040,14 @@ static void persist(PersistInfo *pi) printf("1 %d PERM\n", pi->counter); pi->level++; #endif - pi->writer(pi->L, &type, sizeof(int), pi->ud); + pi_write(pi, &type, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persist_permtype %d\n", type); + hrOut(pi); + } +#ifdef TOTEXT + printf("persist_permtype %d\n", type); +#endif persist(pi); lua_pop(pi->L, 1); /* perms reftbl ... obj */ @@ -702,7 +1064,14 @@ static void persist(PersistInfo *pi) } { int type = lua_type(pi->L, -1); - pi->writer(pi->L, &type, sizeof(int), pi->ud); + pi_write(pi, &type, sizeof(int), pi->ud); + if (humanReadable) { + snprintf(hrBuf, hrBufSize, "persist %s\n", type >= 0 && type < NUMTYPES ? typenames[type] : "?"); + hrOut(pi); + } +#ifdef TOTEXT + printf("persist %s\n", type >= 0 && type < NUMTYPES ? typenames[type] : "?"); +#endif #ifdef PLUTO_DEBUG printindent(pi->level); @@ -798,8 +1167,8 @@ typedef struct WriterInfo_t { size_t buflen; } WriterInfo; -static int bufwriter (lua_State *L, const void* p, size_t sz, void* ud) { - const char* cp = (const char*)p; +static int bufwriter (lua_State *L, const void *p, size_t sz, void *ud) { + const char *cp = (const char *)p; WriterInfo *wi = (WriterInfo *)ud; LIF(M,reallocvector)(L, wi->buf, wi->buflen, wi->buflen+sz, char); @@ -819,7 +1188,7 @@ int persist_l(lua_State *L) wi.buf = NULL; wi.buflen = 0; - + lua_settop(L, 2); /* perms? rootobj? */ luaL_checktype(L, 1, LUA_TTABLE); @@ -895,10 +1264,13 @@ static void unpersistnumber(UnpersistInfo *upi) static void unpersiststring(UnpersistInfo *upi) { /* perms reftbl sptbl ref */ + /*int length;*/ size_t length; char* string; lua_checkstack(upi->L, 1); - verify(LIF(Z,read)(&upi->zio, &length, sizeof(size_t)) == 0); + /*verify(LIF(Z,read)(&upi->zio, &length, sizeof(int)) == 0);*/ + /*verify(LIF(Z,read)(&upi->zio, &length, sizeof(size_t)) == 0);*/ + read_size(&upi->zio, &length); string = pdep_newvector(upi->L, length, char); verify(LIF(Z,read)(&upi->zio, string, length) == 0); lua_pushlstring(upi->L, string, length); @@ -1312,7 +1684,7 @@ static void unpersistthread(int ref, UnpersistInfo *upi) /* First, deserialize the object stack. */ { size_t i, stacksize; - verify(LIF(Z,read)(&upi->zio, &stacksize, sizeof(size_t)) == 0); + read_size(&upi->zio, &stacksize); LIF(D,growstack)(L2, (int)stacksize); /* Make sure that the first stack element (a nil, representing * the imaginary top-level C function) is written to the very, @@ -1331,16 +1703,16 @@ static void unpersistthread(int ref, UnpersistInfo *upi) /* Now, deserialize the CallInfo stack. */ { size_t i, numframes; - verify(LIF(Z,read)(&upi->zio, &numframes, sizeof(size_t)) == 0); + read_size(&upi->zio, &numframes); LIF(D,reallocCI)(L2,numframes*2); for(i=0; i<numframes; i++) { CallInfo *ci = L2->base_ci + i; size_t stackbase, stackfunc, stacktop, savedpc; - verify(LIF(Z,read)(&upi->zio, &stackbase, sizeof(size_t)) == 0); - verify(LIF(Z,read)(&upi->zio, &stackfunc, sizeof(size_t)) == 0); - verify(LIF(Z,read)(&upi->zio, &stacktop, sizeof(size_t)) == 0); + read_size(&upi->zio, &stackbase); + read_size(&upi->zio, &stackfunc); + read_size(&upi->zio, &stacktop); verify(LIF(Z,read)(&upi->zio, &ci->nresults, sizeof(int)) == 0); - verify(LIF(Z,read)(&upi->zio, &savedpc, sizeof(size_t)) == 0); + read_size(&upi->zio, &savedpc); if(stacklimit < stacktop) stacklimit = stacktop; @@ -1363,9 +1735,10 @@ static void unpersistthread(int ref, UnpersistInfo *upi) size_t stackbase, stacktop; L2->savedpc = L2->ci->savedpc; verify(LIF(Z,read)(&upi->zio, &L2->status, sizeof(lu_byte)) == 0); - verify(LIF(Z,read)(&upi->zio, &stackbase, sizeof(size_t)) == 0); - verify(LIF(Z,read)(&upi->zio, &stacktop, sizeof(size_t)) == 0); + read_size(&upi->zio, &stackbase); + read_size(&upi->zio, &stacktop); verify(LIF(Z,read)(&upi->zio, &L2->errfunc, sizeof(ptrdiff_t)) == 0); + //read_size(&upi->zio, (size_t *)&L2->errfunc); L2->base = L2->stack + stackbase; L2->top = L2->stack + stacktop; } @@ -1391,7 +1764,7 @@ static void unpersistthread(int ref, UnpersistInfo *upi) lua_pop(upi->L, 1); /* perms reftbl ... thr */ - verify(LIF(Z,read)(&upi->zio, &stackpos, sizeof(size_t)) == 0); + read_size(&upi->zio, &stackpos); uv->v = L2->stack + stackpos; gcunlink(upi->L, (GCObject *)uv); uv->marked = luaC_white(g); @@ -1443,7 +1816,7 @@ static void unpersistuserdata(int ref, UnpersistInfo *upi) /* perms reftbl ... udata */ } else { size_t length; - verify(LIF(Z,read)(&upi->zio, &length, sizeof(size_t)) == 0); + read_size(&upi->zio, &length); lua_newuserdata(upi->L, length); /* perms reftbl ... udata */ @@ -1611,8 +1984,8 @@ void pluto_unpersist(lua_State *L, lua_Chunkreader reader, void *ud) } typedef struct LoadInfo_t { - char *buf; - size_t size; + char *buf; + size_t size; } LoadInfo; @@ -1653,9 +2026,41 @@ int unpersist_l(lua_State *L) return 1; } +/* Stefan's first C function for Lua! :) + Returns a string describing the Pluto version you're using. */ + +int version_l(lua_State *L) +{ + const char *version = VERSION; + + lua_settop(L, 0); + /* (empty) */ + lua_pushlstring(L, version, strlen(version)); + /* str */ + return 1; +} + +/* Set human-readable output on or off. */ +int human_l(lua_State *L) +{ + /* flag? ...? */ + lua_settop(L, 1); + /* flag? */ + /*luaL_checktype(L, 1, LUA_TBOOLEAN);*/ + /* flag */ + + humanReadable = lua_toboolean(L, 1); + + lua_settop(L, 0); + /* (empty) */ + return 0; +} + static luaL_reg pluto_reg[] = { { "persist", persist_l }, { "unpersist", unpersist_l }, + { "version", version_l }, + { "human", human_l }, { NULL, NULL } }; |