Add a simplified waitpid() so that sh can wait on spawned commands.

1 files changed, 5 insertions, 0 deletions

diff --git a/Kernel/Task.h b/Kernel/Task.h
index 06c8dc8212..7427daee80 100644
--- a/Kernel/Task.h
+++ b/Kernel/Task.h
@@ -37,6 +37,7 @@ public:
         Terminated = 6,
         Crashing = 7,
         Exiting = 8,
+        BlockedWait = 9,
     };
 
     enum RingLevel {
@@ -97,6 +98,7 @@ public:
     void sys$sleep(DWORD ticks);
     void sys$exit(int status);
     int sys$spawn(const char* path);
+    pid_t sys$waitpid(pid_t);
 
     struct
     {
@@ -116,6 +118,8 @@ public:
     void didSchedule() { ++m_timesScheduled; }
     dword timesScheduled() const { return m_timesScheduled; }
 
+    pid_t waitee() const { return m_waitee; }
+
 private:
     friend class MemoryManager;
 
@@ -145,6 +149,7 @@ private:
     int m_error { 0 };
     void* m_kernelStack { nullptr };
     dword m_timesScheduled { 0 };
+    pid_t m_waitee { -1 };
 
     struct Region {
         Region(LinearAddress, size_t, RetainPtr<Zone>&&, String&&);