int main(){
char linha[100];
if(fork() == 0){
int kv = kv_connect("127.0.0.1", 9999);
printf("CLIENT 0 connected to data-server\n"); fflush(stdout);
for (uint32_t i = 0; i < MAX_VALUES; i +=2){
sprintf(linha, "%u", i);
printf("CLIENT 0 writing key %d with value %s\n", i, linha); fflush(stdout);
kv_write(kv, i , linha, strlen(linha)+1, 0);
}
printf("reading values\n");
for (uint32_t i = 0; i < MAX_VALUES; i ++){
if(kv_read(kv, i , linha, 100) == 0){
printf ("key - %10u value %s\n", i, linha);
}else {
printf("key - %10u does not exist in dictionary\n", i);
}
}
kv_close(kv);
}else{
int kv = kv_connect("127.0.0.1", 9999);
printf("CLIENT 1 connected to data-server\n"); fflush(stdout);
printf("reading values\n");
for (uint32_t i = 0; i < MAX_VALUES; i ++){
if(kv_read(kv, i , linha, 100) == 0){
printf ("key - %10u value %s\n", i, linha);
}else {
printf("key - %10u does not exist in dictionary\n", i);
}
}
printf("writing values\n");
for (uint32_t i = 1; i < MAX_VALUES; i +=2){
sprintf(linha, "%u", i);
printf("CLIENT 1 writing key %d with value %s\n", i, linha); fflush(stdout);
kv_write(kv, i , linha, strlen(linha)+1, 0);
}
printf("press enter to delete even values\n");
for (uint32_t i = 0; i < MAX_VALUES; i +=2){
printf("deleting key %d\n", i);
kv_delete(kv, i);
}
kv_close(kv);
}
}
int main(){
char read_val[MAX_BUFFER];
int ret;
printf("Connecting to server\n");
int kv_descriptor = kv_connect("127.0.0.1",9998); // This descriptor is what the API will use from now on
ret = kv_write(kv_descriptor, 1, "a", (strlen("a") + 1) * sizeof(char), 0);
printf("kv_write returned %d \n", ret);
ret = kv_write(kv_descriptor, 2, "ab", (strlen("ab") + 1) * sizeof(char), 0);
printf("kv_write returned %d \n", ret);
ret = kv_write(kv_descriptor, 3, "abc", (strlen("abc") + 1) * sizeof(char), 0);
printf("kv_write returned %d \n", ret);
ret = kv_delete(kv_descriptor, 2);
printf("kv_delete returned %d \n", ret);
printf("Reading from server\n");
kv_read(kv_descriptor, 3, read_val, MAX_BUFFER);
printf("Closing connection to server\n");
kv_close(kv_descriptor);
exit(0);
}
int kv_delete(int kv_descriptor, uint32_t key){
int return_value;
return_value = try_kv_delete(kv_descriptor, key);
if(return_value == -1){
printf("Retrying...\n");
close(kv_descriptor);
kv_descriptor = kv_connect(restore_server_ip, restore_server_port);
if(kv_descriptor > 0){
return try_kv_delete(kv_descriptor, key);
}else return -1;
}
return return_value;
}
int kv_read(int kv_descriptor, uint32_t key, char * value, int value_length){
int return_value;
return_value = try_kv_read(kv_descriptor, key, value, value_length);
if(return_value == -1){
printf("Retrying...\n");
close(kv_descriptor);
kv_descriptor = kv_connect(restore_server_ip, restore_server_port);
if(kv_descriptor > 0){
return try_kv_read(kv_descriptor, key, value, value_length);
}else return -1;
}
return return_value;
}
int main(int argc, char*argv[]){
char linha[100];
pid_t pid = getpid();
if(argc != 3)
exit(-1);
int kv = kv_connect("127.0.0.1", 9999);
if(kv==-1){
perror("kv_connect");
exit(-1);
}
printf("\nPID %d press enter to write values\n", pid);fflush(stdout);
//getchar();
for (uint32_t i = atoi(argv[1]); i < atoi(argv[2]); i ++){
sprintf(linha, "%u", i);
printf("PID %d writing key %d with value %s\n",pid, i, linha);fflush(stdout);
kv_write(kv, i , linha, strlen(linha)+1, 0);
}
kv_close(kv);
}
