From 130121dd61a9adf70d1800ceb03007275bfb589d Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Thu, 7 May 2020 14:29:28 +0200
Subject: Added wait syscall

---
 src/kernel/syscall/actions/sys_wait.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 src/kernel/syscall/actions/sys_wait.c

(limited to 'src/kernel/syscall/actions/sys_wait.c')

diff --git a/src/kernel/syscall/actions/sys_wait.c b/src/kernel/syscall/actions/sys_wait.c
new file mode 100644
index 0000000..7cea24f
--- /dev/null
+++ b/src/kernel/syscall/actions/sys_wait.c
@@ -0,0 +1,24 @@
+#include <tasks/process.h>
+
+u32 sys_wait(u32 pid, u32 *status, u32 options)
+{
+	u32 ret;
+
+	if (pid < 0) { // Wait for any process in gid to die
+		ret = process_wait_gid(pid * -1, status);
+	}
+
+	if (pid == -1) { // Wait for any child to be killed
+		ret = process_wait_gid(current_proc->pid, status);
+	}
+
+	if (pid == 0) { // Wait for siblings of this process to die
+		ret = process_wait_gid(current_proc->gid, status);
+	}
+
+	if (pid > 0) { // Wait for pid to die
+		ret = process_wait_pid(pid, status);
+	}
+
+	return ret;
+}
\ No newline at end of file
-- 
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