diff options
Diffstat (limited to 'src/tcb.c')
| -rw-r--r-- | src/tcb.c | 22 |
1 files changed, 20 insertions, 2 deletions
@@ -106,6 +106,7 @@ stat_t alloc_stack(struct tcb *t) { /* get parent process */ struct tcb *p = get_tcb(t->eid); + assert(p); t->thread_stack = __setup_thread_stack(p, thread_stack_size()); if (!t->thread_stack) @@ -171,16 +172,33 @@ struct tcb *create_thread(struct tcb *p) t->eid = t->pid; t->rid = p->rid; + /* hmm, the rest of this function is maybe a bit too difficult to follow + * for my liking. Will have to think about ways to make the logic more + * easy to follow */ if (!(t->rpc.vmem = create_vmem())) { - if (likely(p)) + if (likely(p)) { + free_page(MM_O0, bottom); return NULL; + } + + destroy_vmem(t->proc.vmem); + free_page(MM_O0, bottom); + return NULL; + } + + if (setup_rpc_stack(t)) { + destroy_rpc_stack(t); + destroy_vmem(t->rpc.vmem); + if (likely(p)) { + free_page(MM_O0, bottom); + return NULL; + } destroy_vmem(t->proc.vmem); free_page(MM_O0, bottom); return NULL; } - setup_rpc_stack(t); reference_thread(p); t->regs = (vm_t)t; |