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#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <assert.h>
#include <stdio.h>
#include <stdatomic.h>
#include "uci/internals/command.h"
#include "uci/internals/response.h"
#include "uci/state.h"
#include "ipc/state.h"
#include "ipc/uci.h"
void load_from_message(uci_cmd_t* cmd, const char* message) {
char token[MAX_TOKEN_SIZE];
int i = 0, k = 0;
while (message[i] != 0 && message[i] != '\n' && message[i] != '\r') {
if (message[i] != ' ') {
token[k++] = message[i++];
continue;
}
if (k == 0) {
i++;
continue;
}
i++;
token[k] = 0;
uci_cmd_add(cmd, token);
k = 0;
}
token[k] = 0;
uci_cmd_add(cmd, token);
}
void *uci(ipc_state_t *ipc_state) {
// https://stackoverflow.com/a/41559081
fcntl(STDIN_FILENO, F_SETFL, O_NONBLOCK);
uci_cmd_t cmd = uci_cmd_init();
size_t n;
char buf[1024];
while (true) {
cmd.empty = true;
cmd.args_count = 0;
ssize_t n = read(STDIN_FILENO, buf, sizeof(buf));
if (n > 0) {
load_from_message(&cmd, buf);
}
handle_uci(&ipc_state->uci_state, cmd);
handle_ipc(ipc_state);
}
}
int k =0;
void handle_ipc(ipc_state_t *state) {
int signal = state->uci_state.signal;
assert(signal < UCI_SIGNAL_COUNT);
if (signal == UCI_SIGNAL_NONE) return;
if (signal == UCI_SIGNAL_QUIT) {
return;
}
if (signal == UCI_SIGNAL_GO) {
// some init stuff
ipc_state_set_event(state, EVENT_ENGINE_GO);
state->uci_state.signal = UCI_SIGNAL_GO_LOOP;
}
if (
signal == UCI_SIGNAL_GO_LOOP &&
ipc_state_is_event(state, EVENT_UCI_RUNNING)
) {
bool ended = false;
engine_messages_t engine_messages = state->engine_messages;
int engine_messages_count = engine_messages.count;
for (int i = 0; i < engine_messages_count; i++) {
engine_message_handler_t *handler = engine_messages.data[i];
if (!engine_message_handler_can_pop(handler)) continue;
engine_message_t *message = engine_message_handler_pop(handler);
printf(
"info depth %d seldepth %d multipv %d ",
message->depth,
message->seldepth,
message->multipv
);
if (message->mate) {
printf("mate %d ", message->mate);
} else {
printf("score cp %d ", message->score_cp);
}
if (message->node_limit) {
printf("upperbound ");
}
printf(
"nodes %d nps %d hashfull %d tbhits %d time %d pv",
message->nodes,
message->nps,
message->hashfull,
message->tbhits,
message->time
);
for (int j = 0; j < message->pv.count; j++) {
ipc_move_t move = message->pv.data[i];
printf(
" %c%c%c%c",
(move.from / 8) + 'a',
(move.from % 8) + '1',
(move.to / 8) + 'a',
(move.to % 8) + '1'
);
}
printf("\n");
if (message->best_move.from != 0 && message->best_move.to != 0) {
ended = true;
printf(
"bestmove %c%c%c%c",
(message->best_move.from / 8) + 'a',
(message->best_move.from % 8) + '1',
(message->best_move.to / 8) + 'a',
(message->best_move.to % 8) + '1'
);
if (message->ponder.from != 0 && message->ponder.to != 0) {
printf(
" ponder %c%c%c%c",
(message->ponder.from / 8) + 'a',
(message->ponder.from % 8) + '1',
(message->ponder.to / 8) + 'a',
(message->ponder.to % 8) + '1'
);
}
printf("\n");
}
engine_message_deinit(message);
if (ended) {
state->uci_state.signal = UCI_SIGNAL_NONE;
state->uci_state.current_state = UCI_STATE_IDLE;
break;
}
}
if (ended) {
ipc_state_set_event(state, EVENT_ENGINE_STOP);
} else {
ipc_state_set_event(state, EVENT_ENGINE_RUNNING);
}
return;
}
if (signal == UCI_SIGNAL_STOP) {
printf("uci stopping\n");
return;
}
}
#include "uci/command.c"
#include "uci/response.c"
#include "uci/state.c"
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