From 460519c0750daa91c2b4d7b0875909c707df8018 Mon Sep 17 00:00:00 2001
From: peri4 <peri4ko@yandex.ru>
Date: Sun, 8 May 2022 16:35:01 +0300
Subject: [PATCH] PISingleApplication fix and optimize

---
 libs/main/system/pisingleapplication.cpp | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/libs/main/system/pisingleapplication.cpp b/libs/main/system/pisingleapplication.cpp
index 5bff0f6b..56d6ca80 100644
--- a/libs/main/system/pisingleapplication.cpp
+++ b/libs/main/system/pisingleapplication.cpp
@@ -49,10 +49,10 @@ bool PISingleApplication::isFirst() const {
 void PISingleApplication::sendMessage(const PIByteArray & m) {
 	waitFirst();
 	PIByteArray ba;
-	int lm[2] = {0, 0};
+	int lm[3] = {0, 0, 0};
 	for (;;) {
-		shm->read(lm, 8);
-		if (lm[1] == 0) break;
+		shm->read(lm, 12);
+		if (lm[2] == 0) break;
 		piMSleep(10);
 	}
 	ba << sacnt << sacnt << int(1) << m;
@@ -85,10 +85,12 @@ void PISingleApplication::run() {
 	int st_[2] = {sacnt, sacnt};
 	shm->write(st_, 8);
 	//piCoutObj << "write" << sacnt;
-	readed = shm->readAll();
-	int t1(0), t2(0), nm(0);
-	readed >> t1 >> t2 >> nm;
-	if (nm != 0 && t1 == t2) {
+	int ri[3] = {0, 0, 0};
+	const int hdr_sz = sizeof(int) * 3;
+	shm->read(ri, hdr_sz);
+	if (ri[2] != 0 && ri[0] == ri[1]) {
+		readed.resize(shm->size() - hdr_sz);
+		shm->read(readed.data(), readed.size(), hdr_sz);
 		PIByteArray msg;
 		readed >> msg;
 		if (!msg.isEmpty()) {