HCoop / hcoop / debian / openafs.git / blame
| Commit | Line | Data |
|---|---|---|
| 805e021f CE |
1 | /* |
| 2 | * Copyright (c) 2010 Your File System Inc. All rights reserved. | |
| 3 | * | |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions | |
| 6 | * are met: | |
| 7 | * 1. Redistributions of source code must retain the above copyright | |
| 8 | * notice, this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 | * notice, this list of conditions and the following disclaimer in the | |
| 11 | * documentation and/or other materials provided with the distribution. | |
| 12 | * | |
| 13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
| 15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 23 | */ | |
| 24 | ||
| 25 | /*! | |
| 26 | * @file rx_stats.c | |
| 27 | * | |
| 28 | * Code for handling statistics gathering within RX, and for mapping the | |
| 29 | * internal representation into an external one | |
| 30 | */ | |
| 31 | #include <afsconfig.h> | |
| 32 | #include <afs/param.h> | |
| 33 | ||
| 34 | #if !defined(KERNEL) | |
| 35 | #include <roken.h> | |
| 36 | #include <afs/opr.h> | |
| 37 | #endif | |
| 38 | ||
| 39 | #ifdef KERNEL | |
| 40 | /* no kmutex, no atomic emulation...*/ | |
| 41 | #include "rx/rx_kcommon.h" | |
| 42 | #else | |
| 43 | #include "rx.h" | |
| 44 | #endif | |
| 45 | #include "rx_atomic.h" | |
| 46 | #include "rx_stats.h" | |
| 47 | ||
| 48 | /* Globals */ | |
| 49 | ||
| 50 | /*! | |
| 51 | * rx_stats_mutex protects the non-atomic members of the rx_stats structure | |
| 52 | */ | |
| 53 | #if defined(RX_ENABLE_LOCKS) | |
| 54 | afs_kmutex_t rx_stats_mutex; | |
| 55 | #endif | |
| 56 | ||
| 57 | struct rx_statisticsAtomic rx_stats; | |
| 58 | ||
| 59 | /*! | |
| 60 | * Return the internal statistics collected by rx | |
| 61 | * | |
| 62 | * @return | |
| 63 | * A statistics structure which must be freed using rx_FreeStatistics | |
| 64 | * @notes | |
| 65 | * Takes, and releases rx_stats_mutex | |
| 66 | */ | |
| 67 | struct rx_statistics * | |
| 68 | rx_GetStatistics(void) { | |
| 69 | struct rx_statistics *stats = rxi_Alloc(sizeof(struct rx_statistics)); | |
| 70 | MUTEX_ENTER(&rx_stats_mutex); | |
| 71 | memcpy(stats, &rx_stats, sizeof(struct rx_statistics)); | |
| 72 | MUTEX_EXIT(&rx_stats_mutex); | |
| 73 | ||
| 74 | return stats; | |
| 75 | } | |
| 76 | ||
| 77 | /*! | |
| 78 | * Free a statistics block allocated by rx_GetStatistics | |
| 79 | * | |
| 80 | * @param stats | |
| 81 | * The statistics block to free | |
| 82 | */ | |
| 83 | void | |
| 84 | rx_FreeStatistics(struct rx_statistics **stats) { | |
| 85 | if (*stats) { | |
| 86 | rxi_Free(*stats, sizeof(struct rx_statistics)); | |
| 87 | *stats = NULL; | |
| 88 | } | |
| 89 | } | |
| 90 | ||
| 91 | /*! | |
| 92 | * Zero the internal statistics structure | |
| 93 | * | |
| 94 | * @private | |
| 95 | */ | |
| 96 | ||
| 97 | void | |
| 98 | rxi_ResetStatistics(void) { | |
| 99 | memset(&rx_stats, 0, sizeof(struct rx_statisticsAtomic)); | |
| 100 | } |