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105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
// -*- C++ -*-
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//
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// $Id: OS_NS_sys_wait.inl 80826 2008-03-04 14:51:23Z wotte $
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#include "ace/OS_NS_errno.h"
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#include "ace/Global_Macros.h"
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ACE_BEGIN_VERSIONED_NAMESPACE_DECL
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ACE_INLINE pid_t
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ACE_OS::wait (int *status)
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{
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ACE_OS_TRACE ("ACE_OS::wait");
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#if defined (ACE_LACKS_WAIT)
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ACE_UNUSED_ARG (status);
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ACE_NOTSUP_RETURN (0);
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#else
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ACE_OSCALL_RETURN (::wait (status), pid_t, -1);
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#endif /* ACE_LACKS_WAIT */
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}
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ACE_INLINE pid_t
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ACE_OS::waitpid (pid_t pid,
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ACE_exitcode *status,
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int wait_options,
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ACE_HANDLE handle)
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{
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ACE_OS_TRACE ("ACE_OS::waitpid");
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#if defined (ACE_LACKS_WAITPID)
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ACE_UNUSED_ARG (pid);
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ACE_UNUSED_ARG (status);
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ACE_UNUSED_ARG (wait_options);
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ACE_UNUSED_ARG (handle);
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ACE_NOTSUP_RETURN (0);
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#elif defined (ACE_WIN32)
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int blocking_period = ACE_BIT_ENABLED (wait_options, WNOHANG)
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? 0 /* don't hang */
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: INFINITE;
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ACE_HANDLE phandle = handle;
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if (phandle == 0)
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{
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phandle = ::OpenProcess (SYNCHRONIZE,
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FALSE,
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pid);
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if (phandle == 0)
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{
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ACE_OS::set_errno_to_last_error ();
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return -1;
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}
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}
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pid_t result = pid;
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// Don't try to get the process exit status if wait failed so we can
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// keep the original error code intact.
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switch (::WaitForSingleObject (phandle,
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blocking_period))
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{
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case WAIT_OBJECT_0:
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if (status != 0)
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// The error status of <GetExitCodeProcess> is nonetheless
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// not tested because we don't know how to return the value.
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::GetExitCodeProcess (phandle,
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status);
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break;
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case WAIT_TIMEOUT:
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errno = ETIME;
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result = 0;
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break;
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default:
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ACE_OS::set_errno_to_last_error ();
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result = -1;
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}
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if (handle == 0)
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::CloseHandle (phandle);
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return result;
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#elif defined(ACE_TANDEM_T1248_PTHREADS)
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ACE_UNUSED_ARG (handle);
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ACE_OSCALL_RETURN (::spt_waitpid (pid, status, wait_options),
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pid_t, -1);
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#else
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ACE_UNUSED_ARG (handle);
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ACE_OSCALL_RETURN (::waitpid (pid, status, wait_options),
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pid_t, -1);
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#endif /* ACE_LACKS_WAITPID */
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}
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ACE_INLINE pid_t
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ACE_OS::wait (pid_t pid,
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ACE_exitcode *status,
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int wait_options,
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ACE_HANDLE handle)
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{
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ACE_OS_TRACE ("ACE_OS::wait");
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return ACE_OS::waitpid (pid,
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status,
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wait_options,
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handle);
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}
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ACE_END_VERSIONED_NAMESPACE_DECL
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