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https://github.com/CPunch/Cosmo.git
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cdump.c: major refactoring; various fixes
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8efecf71a4
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@ -45,6 +45,9 @@ typedef struct CObjClosure CObjClosure;
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typedef uint8_t INSTRUCTION;
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typedef int (*cosmo_Reader)(CState *state, void *data, size_t size, const void *ud);
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typedef int (*cosmo_Writer)(CState *state, const void *data, size_t size, const void *ud);
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#define COSMOMAX_UPVALS 80
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#define FRAME_MAX 64
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#define STACK_MAX (256 * FRAME_MAX)
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@ -2,6 +2,7 @@
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#include "cundump.h"
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#include "cvm.h"
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#include "cchunk.h"
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#include "cmem.h"
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typedef struct
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{
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@ -11,7 +12,12 @@ typedef struct
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int readerStatus;
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} UndumpState;
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#define check(e) if (!e) return false;
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static bool readCValue(UndumpState *udstate, CValue *val);
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#define check(e) if (!e) { \
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printf("FAILED %d\n", __LINE__); \
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return false; \
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}
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static void initUndumpState(CState *state, UndumpState *udstate, cosmo_Reader reader,
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const void *userData)
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@ -36,9 +42,9 @@ static bool readu8(UndumpState *udstate, uint8_t *d)
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return readBlock(udstate, d, sizeof(uint8_t));
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}
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static bool readu16(UndumpState *udstate, uint16_t *d)
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static bool readu32(UndumpState *udstate, uint32_t *d)
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{
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return readBlock(udstate, d, sizeof(uint16_t));
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return readBlock(udstate, d, sizeof(uint32_t));
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}
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static bool readSize(UndumpState *udstate, size_t *d)
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@ -46,11 +52,11 @@ static bool readSize(UndumpState *udstate, size_t *d)
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return readBlock(udstate, d, sizeof(size_t));
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}
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static bool readVector(UndumpState *udstate, void **data, size_t *size)
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static bool readVector(UndumpState *udstate, void **data, size_t size, size_t *count)
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{
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check(readSize(udstate, size));
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*data = cosmoM_malloc(udstate->state, *size);
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return readBlock(udstate, *data, *size);
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check(readSize(udstate, count));
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*data = cosmoM_xmalloc(udstate->state, (*count)*size);
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return readBlock(udstate, *data, (*count)*size);
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}
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#define checku8(udstate, d, tmp) \
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@ -84,17 +90,17 @@ static bool checkHeader(UndumpState *udstate) {
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static bool readCObjString(UndumpState *udstate, CObjString **str)
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{
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size_t size;
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uint32_t size;
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char *data;
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check(readu32(udstate, &size));
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check(readu32(udstate, (uint32_t *)&size));
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if (size == 0) { /* empty string */
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*str = NULL;
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return true;
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}
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*data = cosmoM_malloc(udstate->state, size+1);
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check(readBlock(udstate, (void *)&data, size));
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data = cosmoM_xmalloc(udstate->state, size+1);
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check(readBlock(udstate, (void *)data, size));
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data[size] = '\0'; /* add NULL-terminator */
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*str = cosmoO_takeString(udstate->state, data, size);
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@ -107,13 +113,13 @@ static bool readCObjFunction(UndumpState *udstate, CObjFunction **func) {
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check(readCObjString(udstate, &(*func)->name));
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check(readCObjString(udstate, &(*func)->module));
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check(readu32(udstate, &(*func)->args));
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check(readu32(udstate, &(*func)->upvals));
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check(readu8(udstate, &(*func)->variadic));
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check(readu32(udstate, (uint32_t *)&(*func)->args));
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check(readu32(udstate, (uint32_t *)&(*func)->upvals));
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check(readu8(udstate, (uint8_t *)&(*func)->variadic));
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/* read chunk info */
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check(readVector(udstate, (void **)&(*func)->chunk.buf, &(*func)->chunk.count));
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check(readVector(udstate, (void **)&(*func)->chunk.lineInfo, &(*func)->chunk.count));
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check(readVector(udstate, (void **)&(*func)->chunk.buf, sizeof(uint8_t), &(*func)->chunk.count));
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check(readVector(udstate, (void **)&(*func)->chunk.lineInfo, sizeof(int), &(*func)->chunk.count));
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/* read constants */
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size_t constants;
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@ -121,6 +127,8 @@ static bool readCObjFunction(UndumpState *udstate, CObjFunction **func) {
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for (int i = 0; i < constants; i++) {
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CValue val;
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check(readCValue(udstate, &val));
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// printValue(val);
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// putc('\n', stdout);
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addConstant(udstate->state, &(*func)->chunk, val);
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}
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@ -178,17 +186,20 @@ static bool readCValue(UndumpState *udstate, CValue *val) {
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return true;
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}
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int cosmoD_undump(CState *state, CObjFunction *func, cosmo_Reader writer, const void *userData) {
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int cosmoD_undump(CState *state, cosmo_Reader reader, const void *userData, CObjFunction **func) {
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UndumpState udstate;
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initUndumpState(state, &udstate, writer, userData);
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initUndumpState(state, &udstate, reader, userData);
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if (!checkHeader(&udstate)) {
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cosmoV_pushNil(state);
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return 1;
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}
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if (!readCObjFunction(&udstate, &func)) {
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if (!readCObjFunction(&udstate, func)) {
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cosmoV_pushNil(state);
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return 1;
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}
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cosmoV_pushRef(state, (CObj *)*func);
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return udstate.readerStatus;
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}
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@ -6,9 +6,7 @@
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#include <stdio.h>
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typedef int (*cosmo_Reader)(CState *state, void *data, size_t size, const void *ud);
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/* returns non-zero on error */
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int cosmoD_undump(CState *state, CObjFunction *func, cosmo_Reader writer, const void *userData);
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int cosmoD_undump(CState *state, cosmo_Reader reader, const void *userData, CObjFunction **func);
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#endif
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