Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Missed this one: Completed waitpid().

Browse Source 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22089 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2007-08-28 03:31:30 +00:00
parent 24bcf55926
commit a7ba350ff2
1 changed files with 22 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
src/system/libroot/posix/sys/wait.c
View File

@ -28,22 +28,34 @@ waitpid(pid_t pid, int *_status, int options)
status_t returnCode;
int32 reason;
// TODO: there is no support for WUNTRACED and WCONTINUED yet!
thread_id thread = _kern_wait_for_child(pid, options, &reason, &returnCode);
if (thread >= B_OK && _status != NULL) {
int status = returnCode & 0xff;
// WEXITSTATUS()
// See kernel's wait_for_child() for how the return information is encoded:
// See kernel's wait_for_child() for how the return information is
// encoded:
// reason = (signal << 16) | reason
int status;
switch (reason & 0xffff) {
case THREAD_RETURN_INTERRUPTED:
// fill in signal for WIFSIGNALED() and WTERMSIG()
if (reason & THREAD_RETURN_INTERRUPTED)
status = (reason >> 8) & 0xff00;
// TODO: fill in _status correctly for WIFSTOPPED(), WSTOPSIG(), WIFCORED(),
// and WIFCONTINUED()
break;
case THREAD_STOPPED:
// WIFSTOPPED() and WSTOPSIG()
status = reason & 0xff0000;
break;
case THREAD_CONTINUED:
// WIFCONTINUED()
status = 0x20000;
break;
case THREAD_RETURN_EXIT:
default:
// WEXITSTATUS()
status = returnCode & 0xff;
break;
}
*_status = status;
}