| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | IRIX kernel oplock processing
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| 4 | Copyright (C) Andrew Tridgell 1992-1998
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| 5 |
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| 6 | This program is free software; you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 2 of the License, or
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| 9 | (at your option) any later version.
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| 10 |
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| 11 | This program is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with this program; if not, write to the Free Software
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| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 19 | */
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| 20 |
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| 21 | #define DBGC_CLASS DBGC_LOCKING
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| 22 | #include "includes.h"
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| 23 |
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| 24 | #if HAVE_KERNEL_OPLOCKS_IRIX
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| 25 |
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| 26 | static int oplock_pipe_write = -1;
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| 27 | static int oplock_pipe_read = -1;
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| 28 |
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| 29 | /****************************************************************************
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| 30 | Test to see if IRIX kernel oplocks work.
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| 31 | ****************************************************************************/
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| 32 |
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| 33 | static BOOL irix_oplocks_available(void)
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| 34 | {
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| 35 | int fd;
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| 36 | int pfd[2];
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| 37 | pstring tmpname;
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| 38 |
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| 39 | set_effective_capability(KERNEL_OPLOCK_CAPABILITY);
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| 40 |
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| 41 | slprintf(tmpname,sizeof(tmpname)-1, "%s/koplock.%d", lp_lockdir(),
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| 42 | (int)sys_getpid());
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| 43 |
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| 44 | if(pipe(pfd) != 0) {
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| 45 | DEBUG(0,("check_kernel_oplocks: Unable to create pipe. Error "
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| 46 | "was %s\n",
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| 47 | strerror(errno) ));
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| 48 | return False;
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| 49 | }
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| 50 |
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| 51 | if((fd = sys_open(tmpname, O_RDWR|O_CREAT|O_EXCL|O_TRUNC, 0600)) < 0) {
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| 52 | DEBUG(0,("check_kernel_oplocks: Unable to open temp test file "
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| 53 | "%s. Error was %s\n",
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| 54 | tmpname, strerror(errno) ));
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| 55 | unlink( tmpname );
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