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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-11-11 19:46:22 +0200 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-11-11 19:46:22 +0200 |
| commit | 1d37792fb7a47135f0e7b7fc245e83bb1d8fc496 (patch) | |
| tree | 09ec92012bb9d74d5d26bc7a4a7647c36c9acb3e /common/uapi | |
| parent | 9edd65c48ee75751327c6ee6d42a7009e726d667 (diff) | |
| download | kmi-1d37792fb7a47135f0e7b7fc245e83bb1d8fc496.tar.gz kmi-1d37792fb7a47135f0e7b7fc245e83bb1d8fc496.zip | |
less buggy fork
+ Not strictly done yet, but we can swap between two processes :D
Diffstat (limited to 'common/uapi')
| -rw-r--r-- | common/uapi/proc.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/common/uapi/proc.c b/common/uapi/proc.c index 5dbd90c..969dcd6 100644 --- a/common/uapi/proc.c +++ b/common/uapi/proc.c @@ -62,8 +62,9 @@ SYSCALL_DEFINE0(fork)(){ if (!t) return SYS_RET1(ERR_OOMEM); - /* prepare args for when we eventually swap to the new proc */ - set_args(t, SYS_RET2(OK, 0)); + /* prepare args for when we eventually swap to the new proc, giving + * parent ID as third return value */ + set_args(t, SYS_RET3(OK, 0, c->pid)); return SYS_RET2(OK, t->pid); } @@ -166,5 +167,9 @@ SYSCALL_DEFINE1(swap)(sys_arg_t tid){ /* switch over to new thread */ use_tcb(t); + /* set return value for current thread */ + set_args(c, SYS_RET1(OK)); + + /* get register state for new thread */ return get_args(t); } |