From 48ea61ab9c369ab643b0909a5f5873b2b3c26bb7 Mon Sep 17 00:00:00 2001
From: Giacomo Tesio <giacomo@tesio.it>
Date: Mon, 8 May 2017 00:36:04 +0200
Subject: [PATCH] newlib: more tests for signals

---
 qa/lib/newlib/202-signals.c | 55 ++++++++++++++++++++++++++++
 qa/lib/newlib/203-signals.c | 73 +++++++++++++++++++++++++++++++++++++
 2 files changed, 128 insertions(+)
 create mode 100644 qa/lib/newlib/202-signals.c
 create mode 100644 qa/lib/newlib/203-signals.c

diff --git a/qa/lib/newlib/202-signals.c b/qa/lib/newlib/202-signals.c
new file mode 100644
index 0000000..eee052a
--- /dev/null
+++ b/qa/lib/newlib/202-signals.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/wait.h>
+
+void sigcont() {
+	printf("CHILD: Got SIGCONT\n");
+	exit(0);
+}
+
+int
+main() { 
+	int pid, p[2], child, cstatus;
+	char dummy[1];
+
+	/* get child process */
+
+	if(pipe(p)){
+		perror("pipe");
+		exit(1);
+	}
+	if ((pid = fork()) < 0) {
+		perror("fork");
+		exit(2);
+	}
+
+	if (pid == 0) {
+		signal(SIGCONT,sigcont); /* set function calls */
+		printf("Child going to loop...\n");
+		close(p[1]);
+		close(p[0]);
+		for(;;); /* loop for ever */
+	}
+	else /* parent */
+	{
+		close(p[1]);
+		if(read(p[0], &dummy, 1) > 0){
+			printf("sync read received data");
+			exit(EXIT_FAILURE);
+		}
+		close(p[0]);
+		printf("PARENT: sending SIGCONT\n\n");
+		kill(pid,SIGCONT);
+		child = wait(&cstatus);
+		if(child == pid && cstatus == 0)
+			exit(0);
+		else
+		{
+			printf("PARENT: child exited with status %d\n", cstatus);
+			exit(1);
+		}
+	}
+}
+
diff --git a/qa/lib/newlib/203-signals.c b/qa/lib/newlib/203-signals.c
new file mode 100644
index 0000000..9d81e9e
--- /dev/null
+++ b/qa/lib/newlib/203-signals.c
@@ -0,0 +1,73 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/wait.h>
+
+void sigcont() {
+	signal(SIGCONT,sigcont); /* reset signal */
+	printf("CHILD: Got SIGCONT\n");
+	exit(0);
+}
+
+void sigstop() {
+	signal(SIGSTOP,sigstop); /* reset signal */
+	printf("CHILD: Got SIGSTOP\n");
+	exit(1);
+}
+
+int
+main() { 
+	int pid, p[2], child, cstatus;
+	char dummy[1];
+
+	/* get child process */
+
+	if(pipe(p)){
+		perror("pipe");
+		exit(1);
+	}
+	if ((pid = fork()) < 0) {
+		perror("fork");
+		exit(2);
+	}
+
+	if (pid == 0) {
+		signal(SIGCONT,sigcont); /* set function calls */
+		signal(SIGSTOP,sigstop); /* set function calls */
+		printf("Child going to loop...\n");
+		close(p[1]);
+		close(p[0]);
+		for(;;){
+			/* loop for ever */
+			printf(".");
+			usleep(1000);
+		}
+	}
+	else /* parent */
+	{
+		close(p[1]);
+		if(read(p[0], &dummy, 1) > 0){
+			printf("sync read received data");
+			exit(EXIT_FAILURE);
+		}
+		close(p[0]);
+		sleep(2);
+		printf("PARENT: sending SIGSTOP\n");
+		kill(pid,SIGSTOP);
+		sleep(4);
+		
+		printf("PARENT: sending SIGCONT\n");
+		kill(pid,SIGCONT);
+		
+		child = wait(&cstatus);
+		if(child == pid && cstatus == 0)
+			exit(0);
+		else
+		{
+			printf("PARENT: child exited with status %d\n", cstatus);
+			exit(1);
+		}
+	}
+}
+