projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
| 2 | // vim: ts=8 sw=2 smarttab | |
| 3 | /* | |
| 4 | * Ceph - scalable distributed file system | |
| 5 | * | |
| 6 | * Copyright (C) 2012 Red Hat | |
| 7 | * | |
| 8 | * This is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU Lesser General Public | |
| 10 | * License version 2.1, as published by the Free Software | |
| 11 | * Foundation. See file COPYING. | |
| 12 | * | |
| 13 | */ | |
| 14 | ||
| 15 | #include <unistd.h> | |
| 31f18b77 FG |
16 | #if defined(__FreeBSD__) |
| 17 | #include <errno.h> | |
| 18 | #endif | |
| 7c673cae FG |
19 | #ifdef __linux__ |
| 20 | #include <sys/syscall.h> /* For SYS_xxx definitions */ | |
| 21 | #endif | |
| 22 | #include <algorithm> | |
| 7c673cae FG |
23 | |
| 24 | #include "io_priority.h" | |
| 25 | ||
| 26 | pid_t ceph_gettid(void) | |
| 27 | { | |
| 28 | #ifdef __linux__ | |
| 29 | return syscall(SYS_gettid); | |
| 30 | #else | |
| 31 | return -ENOSYS; | |
| 32 | #endif | |
| 33 | } | |
| 34 | ||
| 35 | int ceph_ioprio_set(int whence, int who, int ioprio) | |
| 36 | { | |
| 37 | #ifdef __linux__ | |
| 38 | return syscall(SYS_ioprio_set, whence, who, ioprio); | |
| 39 | #else | |
| 40 | return -ENOSYS; | |
| 41 | #endif | |
| 42 | } | |
| 43 | ||
| 44 | int ceph_ioprio_string_to_class(const std::string& s) | |
| 45 | { | |
| 46 | std::string l = s; | |
| 47 | std::transform(l.begin(), l.end(), l.begin(), ::tolower); | |
| 48 | ||
| 49 | if (l == "idle") | |
| 50 | return IOPRIO_CLASS_IDLE; | |
| 51 | if (l == "be" || l == "besteffort" || l == "best effort") | |
| 52 | return IOPRIO_CLASS_BE; | |
| 53 | if (l == "rt" || l == "realtime" || l == "real time") | |
| 54 | return IOPRIO_CLASS_RT; | |
| 55 | return -EINVAL; | |
| 56 | } |