From 3c540db464f4034d0a393b076c79a26851f68f47 Mon Sep 17 00:00:00 2001
From: Aargh Rai <aargh.rai+git@gmail.com>
Date: Mon, 6 Jul 2026 23:39:55 +0530
Subject: removed unnescessary stuff + ipc with shared memory + somehow the
 build is faster?

---
 src/ipc.c | 133 ++++++++++----------------------------------------------------
 1 file changed, 20 insertions(+), 113 deletions(-)

(limited to 'src/ipc.c')

diff --git a/src/ipc.c b/src/ipc.c
index d7ef968..9c4dfcc 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -1,133 +1,40 @@
 #ifndef IPC_C
 #define IPC_C
 
-#include <stdlib.h>
-#include <sys/mman.h>
-
-#include "engine/fen.h"
-
-typedef struct {
-  struct uci_move *moves;
-  int count;
-  int capacity;
-} comm_moves;
-
-void add_comm_move(comm_moves *moves, struct uci_move move) {
-  if (moves->count + 1 > moves->capacity) {
-    moves->capacity += 50;
-    moves->moves = realloc(moves->moves, moves->capacity * sizeof(struct uci_move));
-  }
-  moves->moves[moves->count++] = move;
-}
-
-typedef struct {
-  bool engine_message_ready;
-  int depth;
-  int seldepth;
-  int multipv;
-  int score_cp;
-  int nodes;
-  int nps;
-  int hashfull;
-  int tbhits;
-  int time;
-  comm_moves pv;
-
-  bool uci_message_ready;
-  struct fen_load from_position;
-  comm_moves moves;
-} comms;
+#include "ipc.h"
 
 // https://stackoverflow.com/a/5656561
-comms* create_shared_memory() {
+void* create_shared_memory(size_t size) {
   int protection = PROT_READ | PROT_WRITE;
   int visibility = MAP_SHARED | MAP_ANONYMOUS;
-  comms* state = (comms*)mmap(
+  return mmap(
     NULL,
-    sizeof(comms),
+    size,
     protection, visibility,
     -1, 0
   );
-  state->engine_message_ready = false;
-  state->depth = 0;
-  state->seldepth = 0;
-  state->multipv = 0;
-  state->score_cp = 0;
-  state->nodes = 0;
-  state->nps = 0;
-  state->hashfull = 0;
-  state->tbhits = 0;
-  state->time = 0;
-  state->pv = (comm_moves) {
-    (comms*)mmap(
-      NULL,
-      sizeof(struct uci_move) * 50,
-      protection, visibility,
-      -1, 0
-    ), 0, 50
-  };
-  state->uci_message_ready = false;
-  state->from_position = {0};
-  state->moves = (comm_moves) {
-    (comms*)mmap(
-      NULL,
-      sizeof(struct uci_move) * 50,
-      protection, visibility,
-      -1, 0
-    ), 0, 50
-  };
-
-  return state;
-}
-
-void send_uci_message(
-  comms *comms,
-  struct fen_load from_position
-) {
-  comms->from_position = from_position;
-  comms->uci_message_ready = true;
-}
-
-void send_engine_message(
-  comms *comms,
-  int depth,
-  int seldepth,
-  int multipv,
-  int score_cp,
-  int nodes,
-  int nps,
-  int hashfull,
-  int tbhits,
-  int time
-) {
-  comms->depth = depth;
-  comms->seldepth = seldepth;
-  comms->multipv = multipv;
-  comms->score_cp = score_cp;
-  comms->nodes = nodes;
-  comms->nps = nps;
-  comms->hashfull = hashfull;
-  comms->tbhits = tbhits;
-  comms->time = time;
-  comms->engine_message_ready = true;
 }
 
-bool receive_uci_message(comms *comms) {
-  if (comms->uci_message_ready) {
-    comms->uci_message_ready = false;
-    return true;
-  }
-  return false;
+comm_moves comm_moves_init() {
+  return (comm_moves) {
+    create_shared_memory(sizeof(struct uci_move) * 50),
+    0,
+    50
+  };
 }
 
-// TODO: think about dealing with multiple engine messages
-bool receive_engine_message(comms *comms) {
-  if (comms->engine_message_ready) {
-    comms->engine_message_ready = false;
-    return true;
+void add_comm_move(comm_moves *moves, struct uci_move move) {
+  if (moves->count + 1 > moves->capacity) {
+    moves->capacity += 50;
+    moves->moves = realloc(
+      moves->moves,
+      moves->capacity * sizeof(struct uci_move)
+    );
   }
-  return false;
+  moves->moves[moves->count++] = move;
 }
 
+#include "fen.c"
+#include "bitboard.c"
 
 #endif // IPC_C
-- 
cgit v1.2.3