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* For each userland team the kernel creates an area in the userland

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address space that is fully locked and marked B_KERNEL_AREA. It can
  thus be accessed by the kernel without additional checks.
* For each userland thread we do create a user_thread structure in that
  area. The structure is accessible from userland via TLS, using the
  private get_user_thread() function.
* Introduced private userland functions [un]defer_signals(). They can be
  used to cheaply disable/re-enable signal delivery. They use the
  user_thread::defer_signals/pending_signals fields which are
  checked/updated by the kernel.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25451 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2008-05-11 16:25:35 +00:00
parent 58148e2e02
commit d648afb8d7
10 changed files with 256 additions and 13 deletions
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headers/private/kernel/team.h
+3
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@@ -47,6 +47,9 @@ status_t start_watching_team(team_id team, void (*hook)(team_id, void *),
status_t stop_watching_team(team_id team, void (*hook)(team_id, void *),
void *data);
struct user_thread* team_allocate_user_thread(struct team* team);
void team_free_user_thread(struct thread* thread);
// used in syscalls.c
thread_id _user_load_image(int32 argCount, const char **args, int32 envCount,
const char **env, int32 priority, uint32 flags,