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Added ipc to notify vfs about a forked child.

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TODO: Need to ensure child shmat()s its own utcb
after a fork (possibly in libposix/fork.c)
This commit is contained in:
Bahadir Balban
2008-08-22 00:11:06 +03:00
parent 3ce220f062
commit 1d15821acb
10 changed files with 139 additions and 44 deletions
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18
src/api/thread.c
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@@ -128,10 +128,6 @@ int thread_create(struct task_ids *ids, unsigned int flags)
/* Allocate new pgd and copy all kernel areas */
new->pgd = alloc_pgd();
copy_pgd_kern_all(new->pgd);
/* New space id, or requested id if available */
if ((ids->spid = id_get(space_id_pool, ids->spid)) < 0)
ids->spid = id_new(space_id_pool);
} else {
/* Existing space will be used, find it from all tasks */
list_for_each_entry(task, &global_task_list, task_list) {
@@ -149,10 +145,22 @@ int thread_create(struct task_ids *ids, unsigned int flags)
BUG();
}
out:
/* New thread id, or requested id if available */
/* Allocate requested id if it's available, else a new one */
if ((ids->tid = id_get(thread_id_pool, ids->tid)) < 0)
ids->tid = id_new(thread_id_pool);
/* If thread space is new or copied, it gets a new space id */
if (flags == THREAD_CREATE_NEWSPC ||
flags == THREAD_CREATE_COPYSPC) {
/*
* Allocate requested id if
* it's available, else a new one
*/
if ((ids->spid = id_get(space_id_pool,
ids->spid)) < 0)
ids->spid = id_new(space_id_pool);
}
/* Set all ids */
set_task_ids(new, ids);