50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2012 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include <signal.h>
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#include <errno.h>
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#include "gtm_unistd.h"
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#include "gtmsiginfo.h"
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#include "io.h"
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#include "send_msg.h"
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#include "setterm.h"
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GBLREF volatile int suspend_status;
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GBLREF io_pair io_std_device;
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GBLREF uint4 process_id;
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GBLREF uint4 sig_count;
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error_def(ERR_SUSPENDING);
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error_def(ERR_TEXT);
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void suspend(int sig)
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{
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int status;
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send_msg(VARLSTCNT(3) ERR_SUSPENDING, 1, sig);
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suspend_status = NOW_SUSPEND;
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/* Dont call flush_pio() if the received signal is SIGTTOU OR if the received signal is SIGTTIN
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* and the $P.out is terminal. Arrival of SIGTTIN and SIGTTOU indicates that current process is
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* in the background. Hence it does not make sense to do flush_pio() $P.out is terminal.
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*/
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if (!(sig == SIGTTOU || ((tt == io_std_device.out->type) && (sig == SIGTTIN))))
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flush_pio();
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if (NULL != io_std_device.in && tt == io_std_device.in->type)
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resetterm(io_std_device.in);
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sig_count = 0;
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status = kill(process_id, SIGSTOP);
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assert(0 == status);
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return;
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}
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