mozglue/build/cpuacct.c@b8a032363ba2 (annotated)
mozglue/build/cpuacct.c
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright (C) 2010 The Android Open Source Project |
| michael@0 | 3 | * All rights reserved. |
| michael@0 | 4 | * |
| michael@0 | 5 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 6 | * modification, are permitted provided that the following conditions |
| michael@0 | 7 | * are met: |
| michael@0 | 8 | * * Redistributions of source code must retain the above copyright |
| michael@0 | 9 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 10 | * * Redistributions in binary form must reproduce the above copyright |
| michael@0 | 11 | * notice, this list of conditions and the following disclaimer in |
| michael@0 | 12 | * the documentation and/or other materials provided with the |
| michael@0 | 13 | * distribution. |
| michael@0 | 14 | * |
| michael@0 | 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 16 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 17 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| michael@0 | 18 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| michael@0 | 19 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| michael@0 | 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| michael@0 | 21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| michael@0 | 22 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| michael@0 | 23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| michael@0 | 24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| michael@0 | 25 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| michael@0 | 26 | * SUCH DAMAGE. |
| michael@0 | 27 | */ |
| michael@0 | 28 | #include <unistd.h> |
| michael@0 | 29 | #include <errno.h> |
| michael@0 | 30 | #include <sys/stat.h> |
| michael@0 | 31 | #include <fcntl.h> |
| michael@0 | 32 | #include <stdio.h> |
| michael@0 | 33 | #include "cpuacct.h" |
| michael@0 | 34 | |
| michael@0 | 35 | int cpuacct_add(uid_t uid) |
| michael@0 | 36 | { |
| michael@0 | 37 | int count; |
| michael@0 | 38 | int fd; |
| michael@0 | 39 | char buf[80]; |
| michael@0 | 40 | |
| michael@0 | 41 | count = snprintf(buf, sizeof(buf), "/acct/uid/%d/tasks", uid); |
| michael@0 | 42 | fd = open(buf, O_RDWR|O_CREAT|O_TRUNC|O_SYNC); |
| michael@0 | 43 | if (fd < 0) { |
| michael@0 | 44 | /* Note: sizeof("tasks") returns 6, which includes the NULL char */ |
| michael@0 | 45 | buf[count - sizeof("tasks")] = 0; |
| michael@0 | 46 | if (mkdir(buf, 0775) < 0) |
| michael@0 | 47 | return -errno; |
| michael@0 | 48 | |
| michael@0 | 49 | /* Note: sizeof("tasks") returns 6, which includes the NULL char */ |
| michael@0 | 50 | buf[count - sizeof("tasks")] = '/'; |
| michael@0 | 51 | fd = open(buf, O_RDWR|O_CREAT|O_TRUNC|O_SYNC); |
| michael@0 | 52 | } |
| michael@0 | 53 | if (fd < 0) |
| michael@0 | 54 | return -errno; |
| michael@0 | 55 | |
| michael@0 | 56 | write(fd, "0", 2); |
| michael@0 | 57 | if (close(fd)) |
| michael@0 | 58 | return -errno; |
| michael@0 | 59 | |
| michael@0 | 60 | return 0; |
| michael@0 | 61 | } |
