Merge branch 'signal-dev'

[lunaix-os.git] / lunaix-os / kernel / lxinit.c

diff --git a/lunaix-os/kernel/lxinit.c b/lunaix-os/kernel/lxinit.c
index 57e2bda22421da102c8b063bca8adfd2f1fd58c4..2de87c5900d59d773499f956123eaae871ba89fe 100644 (file)
--- a/lunaix-os/kernel/lxinit.c
+++ b/lunaix-os/kernel/lxinit.c
@@ -5,6 +5,7 @@
 #include <lunaix/mm/kalloc.h>
 #include <lunaix/mm/vmm.h>
 #include <lunaix/proc.h>
+#include <lunaix/signal.h>
 #include <lunaix/spike.h>
 #include <lunaix/syslog.h>
 #include <lunaix/timer.h>
@@ -18,6 +19,12 @@ LOG_MODULE("INIT")
 #define WAIT_DEMO
 #define IN_USER_MODE
 
+void __USER__
+sigchild_handler(int signum)
+{
+    kprintf(KINFO "SIGCHLD received\n");
+}
+
 void __USER__
 _lxinit_main()
 {
@@ -31,6 +38,8 @@ _lxinit_main()
     }
 #endif
 
+    signal(_SIGCHLD, sigchild_handler);
+
     int status;
 #ifdef WAIT_DEMO
     // 测试wait
@@ -41,6 +50,7 @@ _lxinit_main()
         kprintf("I am child, I am about to terminated\n");
         _exit(1);
     }
+    pause();
     pid_t child = wait(&status);
     kprintf("I am parent, my child (%d) terminated normally with code: %d.\n",
             child,
@@ -57,7 +67,7 @@ _lxinit_main()
 
     waitpid(-1, &status, WNOHANG);
 
-    for (size_t i = 0; i < 5; i++) {
+    for (size_t i = 0; i < 10; i++) {
         pid_t pid = 0;
         if (!(pid = fork())) {
             sleep(i);