111 lines
2.2 KiB
C++
111 lines
2.2 KiB
C++
/*******************************************************************************
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ClusterGL - Instruction object utils
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*******************************************************************************/
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#include "main.h"
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Instruction::Instruction() {
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id = 0;
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for(int i=0;i<3;i++) {
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buffers[i].buffer = NULL;
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buffers[i].len = 0;
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buffers[i].needClear = false;
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buffers[i].needReply = false;
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buffers[i].needRemoteReply = false;
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buffers[i].hash = 0;
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}
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memset(args, 0, MAX_ARG_LEN);
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}
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Instruction *Instruction::copy(){
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Instruction *r = new Instruction();
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memcpy(r, this, (sizeof(Instruction) - MAX_ARG_LEN) + arglen);
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for(int i=0;i<3;i++) {
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if(buffers[i].buffer) {
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r->buffers[i].buffer = (byte*) malloc(buffers[i].len);
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memcpy(r->buffers[i].buffer, buffers[i].buffer, buffers[i].len);
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}
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}
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return r;
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}
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void Instruction::clear() {
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//printf("Deleted\n");
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arglen = 0;
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for(int i=0;i<3;i++) {
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if(buffers[i].buffer && buffers[i].needClear) {
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//printf("deleted (%d)\n", id);
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//previously delete buffers[i].buffer
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free(buffers[i].buffer);
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buffers[i].buffer = NULL;
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buffers[i].len = 0;
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buffers[i].hash = 0;
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}
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}
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}
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bool Instruction::needReply(){
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for(int i=0;i<3;i++) {
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if(buffers[i].buffer && buffers[i].needReply){
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return true;
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}
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}
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return false;
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}
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bool Instruction::compare(Instruction *other){
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//instr id
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if(other->id != id){
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return false;
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}
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if(other->arglen != arglen){
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return false;
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}
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//argument data.
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if(memcmp((void *)args, (void *)other->args, arglen) != 0){
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return false;
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}
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//buffers
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for(int i=0;i<3;i++){
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//if one has a buffer and another doesn't...
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if(buffers[i].buffer && !other->buffers[i].buffer){
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return false;
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}
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if(!buffers[i].buffer && other->buffers[i].buffer){
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return false;
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}
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//if we have a buffer at all
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if(!buffers[i].buffer){
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continue;
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}
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//if sizes of buffers are different
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if(buffers[i].len != other->buffers[i].len){
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return false;
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}
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//finally check the memory. this is the most expensive bit
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if(memcmp( (void *)buffers[i].buffer,
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(void *)other->buffers[i].buffer,
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buffers[i].len) != 0){
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return false;
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}
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}
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//the same!
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return true;
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}
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