Kernel+LibC: Add sys$waitid(), and make sys$waitpid() wrap it

sys$waitid() takes an explicit description of whether it's waiting for a single
process with the given PID, all of the children, a group, etc., and returns its
info as a siginfo_t.

It also doesn't automatically imply WEXITED, which clears up the confusion in
the kernel.

1 files changed, 9 insertions, 1 deletions

diff --git a/Kernel/Syscall.h b/Kernel/Syscall.h
index 19f755a99e..27dfb1dc7f 100644
--- a/Kernel/Syscall.h
+++ b/Kernel/Syscall.h
@@ -36,6 +36,7 @@ extern "C" {
 struct timeval;
 struct timespec;
 struct sockaddr;
+struct siginfo;
 typedef u32 socklen_t;
 }
 
@@ -51,7 +52,7 @@ typedef u32 socklen_t;
     __ENUMERATE_SYSCALL(exit)                       \
     __ENUMERATE_SYSCALL(getgid)                     \
     __ENUMERATE_SYSCALL(getpid)                     \
-    __ENUMERATE_SYSCALL(waitpid)                    \
+    __ENUMERATE_SYSCALL(waitid)                     \
     __ENUMERATE_SYSCALL(mmap)                       \
     __ENUMERATE_SYSCALL(munmap)                     \
     __ENUMERATE_SYSCALL(get_dir_entries)            \
@@ -404,6 +405,13 @@ struct SC_unveil_params {
     StringArgument permissions;
 };
 
+struct SC_waitid_params {
+    int idtype;
+    int id;
+    struct siginfo* infop;
+    int options;
+};
+
 void initialize();
 int sync();