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344d0cae64
SHGetFolderPath. This removes the direct dependency on shell32.dll and user32.dll, which eats a lot of "desktop heap" for each backend that's started. The desktop heap is a very limited resource, causing backends to no longer start once it's been exhausted. We still have indirect depdendencies on user32.dll through third party libraries, but those can't easily be removed. Dave Page
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* kill.c
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* kill()
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*
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* Copyright (c) 1996-2007, PostgreSQL Global Development Group
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*
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* This is a replacement version of kill for Win32 which sends
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* signals that the backend can recognize.
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/port/kill.c,v 1.9 2007/10/23 17:58:01 mha Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include "c.h"
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#ifdef WIN32
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/* signal sending */
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int
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pgkill(int pid, int sig)
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{
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char pipename[128];
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BYTE sigData = sig;
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BYTE sigRet = 0;
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DWORD bytes;
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/* we allow signal 0 here, but it will be ignored in pg_queue_signal */
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if (sig >= PG_SIGNAL_COUNT || sig < 0)
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{
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errno = EINVAL;
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return -1;
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}
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if (pid <= 0)
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{
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/* No support for process groups */
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errno = EINVAL;
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return -1;
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}
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snprintf(pipename, sizeof(pipename), "\\\\.\\pipe\\pgsignal_%u", pid);
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if (!CallNamedPipe(pipename, &sigData, 1, &sigRet, 1, &bytes, 1000))
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{
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if (GetLastError() == ERROR_FILE_NOT_FOUND)
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errno = ESRCH;
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else if (GetLastError() == ERROR_ACCESS_DENIED)
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errno = EPERM;
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else
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errno = EINVAL;
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return -1;
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}
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if (bytes != 1 || sigRet != sig)
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{
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errno = ESRCH;
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return -1;
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}
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return 0;
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}
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#endif
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