// return true means continue, otherwise early terminate with task::set_error_code
static bool fault_on_rpc_reply(task* caller, message_ex* msg)
{
fj_opt& opt = s_fj_opts[msg->local_rpc_code];
if (dsn_probability() < opt.rpc_response_drop_ratio)
{
ddebug("fault inject %s", __FUNCTION__);
return false;
}
else
{
if (dsn_probability() < opt.rpc_response_data_corrupted_ratio)
{
ddebug("fault injector corrupt the rpc reply message from: %s, type: %s",
msg->header->from_address.to_string(), opt.rpc_message_data_corrupted_type.c_str());
corrupt_data(msg, opt.rpc_message_data_corrupted_type);
}
return true;
}
}
static int log_replay( struct jx_database *db, const char *filename, time_t snapshot)
{
char line[LOG_LINE_MAX];
char value[LOG_LINE_MAX];
char name[LOG_LINE_MAX];
char key[LOG_LINE_MAX];
int n;
struct jx *jvalue, *jobject;
long long current = 0;
FILE *file = fopen(filename,"r");
if(!file) return 0;
while(fgets(line,sizeof(line),file)) {
if(line[0]=='C') {
n = sscanf(line,"C %s %[^\n]",key,value);
if(n==1) {
struct nvpair *nv = nvpair_create();
nvpair_parse_stream(nv,file);
jvalue = nvpair_to_jx(nv);
hash_table_insert(db->table,key,jvalue);
} else if(n==2) {
jvalue = jx_parse_string(value);
if(jvalue) {
hash_table_insert(db->table,key,jvalue);
} else {
corrupt_data(filename,line);
}
} else {
corrupt_data(filename,line);
continue;
}
} else if(line[0]=='D') {
n = sscanf(line,"D %s\n",key);
if(n!=1) {
corrupt_data(filename,line);
continue;
}
jx_delete(hash_table_remove(db->table,key));
} else if(line[0]=='U') {
n=sscanf(line,"U %s %s %[^\n],",key,name,value);
if(n!=3) {
corrupt_data(filename,line);
continue;
}
jobject = hash_table_lookup(db->table,key);
if(!jobject) {
corrupt_data(filename,line);
continue;
}
jvalue = jx_parse_string(value);
if(!jvalue) jvalue = jx_string(value);
struct jx *jname = jx_string(name);
jx_delete(jx_remove(jobject,jname));
jx_insert(jobject,jname,jvalue);
} else if(line[0]=='R') {
n=sscanf(line,"R %s %s",key,name);
if(n!=2) {
corrupt_data(filename,line);
continue;
}
jobject = hash_table_lookup(db->table,key);
if(!jobject) {
corrupt_data(filename,line);
continue;
}
struct jx *jname = jx_string(name);
jx_delete(jx_remove(jobject,jname));
jx_delete(jname);
} else if(line[0]=='T') {
n = sscanf(line,"T %lld",¤t);
if(n!=1) {
corrupt_data(filename,line);
continue;
}
if(current>snapshot) break;
} else if(line[0]=='\n') {
continue;
} else {
corrupt_data(filename,line);
}
}
fclose(file);
return 1;
}
