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https://github.com/MariaDB/server.git
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103 lines
2.5 KiB
C++
Executable File
103 lines
2.5 KiB
C++
Executable File
/* Copyright (C) 2004 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/*
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Utility program used to signal a safe_process it's time to shutdown
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Usage:
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safe_kill <pid>
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*/
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#include <windows.h>
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#include <stdio.h>
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#include <signal.h>
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#include <stdlib.h>
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int main(int argc, const char** argv )
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{
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DWORD pid= -1;
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HANDLE shutdown_event;
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char safe_process_name[32]= {0};
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int retry_open_event= 2;
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/* Ignore any signals */
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signal(SIGINT, SIG_IGN);
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signal(SIGBREAK, SIG_IGN);
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signal(SIGTERM, SIG_IGN);
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if (argc != 2) {
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fprintf(stderr, "safe_kill <pid>\n");
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exit(2);
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}
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pid= atoi(argv[1]);
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_snprintf(safe_process_name, sizeof(safe_process_name),
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"safe_process[%d]", pid);
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/* Open the event to signal */
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while ((shutdown_event=
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OpenEvent(EVENT_MODIFY_STATE, FALSE, safe_process_name)) == NULL)
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{
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/*
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Check if the process is alive, otherwise there is really
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no sense to retry the open of the event
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*/
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HANDLE process;
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DWORD exit_code;
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process= OpenProcess(SYNCHRONIZE| PROCESS_QUERY_INFORMATION, FALSE, pid);
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if (!process)
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{
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/* Already died */
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exit(1);
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}
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if (!GetExitCodeProcess(process,&exit_code))
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{
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fprintf(stderr, "GetExitCodeProcess failed, pid= %d, err= %d\n",
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pid, GetLastError());
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exit(1);
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}
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if (exit_code != STILL_ACTIVE)
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{
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/* Already died */
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CloseHandle(process);
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exit(2);
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}
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CloseHandle(process);
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if (retry_open_event--)
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Sleep(100);
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else
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{
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fprintf(stderr, "Failed to open shutdown_event '%s', error: %d\n",
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safe_process_name, GetLastError());
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exit(3);
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}
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}
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if(SetEvent(shutdown_event) == 0)
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{
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fprintf(stderr, "Failed to signal shutdown_event '%s', error: %d\n",
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safe_process_name, GetLastError());
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CloseHandle(shutdown_event);
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exit(4);
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}
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CloseHandle(shutdown_event);
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exit(0);
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}
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