diff options
Diffstat (limited to 'libglusterfs/src/globals.c')
| -rw-r--r-- | libglusterfs/src/globals.c | 522 |
1 files changed, 276 insertions, 246 deletions
diff --git a/libglusterfs/src/globals.c b/libglusterfs/src/globals.c index e845b3dcb66..ae06f8be386 100644 --- a/libglusterfs/src/globals.c +++ b/libglusterfs/src/globals.c @@ -1,336 +1,366 @@ /* - Copyright (c) 2009 Gluster, Inc. <http://www.gluster.com> - This file is part of GlusterFS. - - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. -*/ + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif /* !_CONFIG_H */ + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ #include <pthread.h> -#include "glusterfs.h" -#include "globals.h" -#include "xlator.h" -#include "mem-pool.h" +#include "glusterfs/syncop.h" +#include "glusterfs/libglusterfs-messages.h" + +const char *gf_fop_list[GF_FOP_MAXVALUE] = { + [GF_FOP_NULL] = "NULL", + [GF_FOP_STAT] = "STAT", + [GF_FOP_READLINK] = "READLINK", + [GF_FOP_MKNOD] = "MKNOD", + [GF_FOP_MKDIR] = "MKDIR", + [GF_FOP_UNLINK] = "UNLINK", + [GF_FOP_RMDIR] = "RMDIR", + [GF_FOP_SYMLINK] = "SYMLINK", + [GF_FOP_RENAME] = "RENAME", + [GF_FOP_LINK] = "LINK", + [GF_FOP_TRUNCATE] = "TRUNCATE", + [GF_FOP_OPEN] = "OPEN", + [GF_FOP_READ] = "READ", + [GF_FOP_WRITE] = "WRITE", + [GF_FOP_STATFS] = "STATFS", + [GF_FOP_FLUSH] = "FLUSH", + [GF_FOP_FSYNC] = "FSYNC", + [GF_FOP_SETXATTR] = "SETXATTR", + [GF_FOP_GETXATTR] = "GETXATTR", + [GF_FOP_REMOVEXATTR] = "REMOVEXATTR", + [GF_FOP_OPENDIR] = "OPENDIR", + [GF_FOP_FSYNCDIR] = "FSYNCDIR", + [GF_FOP_ACCESS] = "ACCESS", + [GF_FOP_CREATE] = "CREATE", + [GF_FOP_FTRUNCATE] = "FTRUNCATE", + [GF_FOP_FSTAT] = "FSTAT", + [GF_FOP_LK] = "LK", + [GF_FOP_LOOKUP] = "LOOKUP", + [GF_FOP_READDIR] = "READDIR", + [GF_FOP_INODELK] = "INODELK", + [GF_FOP_FINODELK] = "FINODELK", + [GF_FOP_ENTRYLK] = "ENTRYLK", + [GF_FOP_FENTRYLK] = "FENTRYLK", + [GF_FOP_XATTROP] = "XATTROP", + [GF_FOP_FXATTROP] = "FXATTROP", + [GF_FOP_FSETXATTR] = "FSETXATTR", + [GF_FOP_FGETXATTR] = "FGETXATTR", + [GF_FOP_RCHECKSUM] = "RCHECKSUM", + [GF_FOP_SETATTR] = "SETATTR", + [GF_FOP_FSETATTR] = "FSETATTR", + [GF_FOP_READDIRP] = "READDIRP", + [GF_FOP_GETSPEC] = "GETSPEC", + [GF_FOP_FORGET] = "FORGET", + [GF_FOP_RELEASE] = "RELEASE", + [GF_FOP_RELEASEDIR] = "RELEASEDIR", + [GF_FOP_FREMOVEXATTR] = "FREMOVEXATTR", + [GF_FOP_FALLOCATE] = "FALLOCATE", + [GF_FOP_DISCARD] = "DISCARD", + [GF_FOP_ZEROFILL] = "ZEROFILL", + [GF_FOP_IPC] = "IPC", + [GF_FOP_SEEK] = "SEEK", + [GF_FOP_LEASE] = "LEASE", + [GF_FOP_COMPOUND] = "COMPOUND", + [GF_FOP_GETACTIVELK] = "GETACTIVELK", + [GF_FOP_SETACTIVELK] = "SETACTIVELK", + [GF_FOP_PUT] = "PUT", + [GF_FOP_ICREATE] = "ICREATE", + [GF_FOP_NAMELINK] = "NAMELINK", + [GF_FOP_COPY_FILE_RANGE] = "COPY_FILE_RANGE", +}; + +const char *gf_upcall_list[GF_UPCALL_FLAGS_MAXVALUE] = { + [GF_UPCALL_NULL] = "NULL", + [GF_UPCALL] = "UPCALL", + [GF_UPCALL_CI_STAT] = "CI_IATT", + [GF_UPCALL_CI_XATTR] = "CI_XATTR", + [GF_UPCALL_CI_RENAME] = "CI_RENAME", + [GF_UPCALL_CI_NLINK] = "CI_UNLINK", + [GF_UPCALL_CI_FORGET] = "CI_FORGET", + [GF_UPCALL_LEASE_RECALL] = "LEASE_RECALL", +}; +/* THIS */ -/* gf_*_list[] */ +/* This global ctx is a bad hack to prevent some of the libgfapi crashes. + * This should be removed once the patch on resource pool is accepted + */ +glusterfs_ctx_t *global_ctx = NULL; +pthread_mutex_t global_ctx_mutex = PTHREAD_MUTEX_INITIALIZER; +xlator_t global_xlator; +static int gf_global_mem_acct_enable = 1; +static pthread_once_t globals_inited = PTHREAD_ONCE_INIT; -char *gf_fop_list[GF_FOP_MAXVALUE]; -char *gf_mgmt_list[GF_MGMT_MAXVALUE]; +static pthread_key_t free_key; +static __thread xlator_t *thread_xlator = NULL; +static __thread void *thread_synctask = NULL; +static __thread void *thread_leaseid = NULL; +static __thread struct syncopctx thread_syncopctx = {}; +static __thread char thread_uuid_buf[GF_UUID_BUF_SIZE] = {}; +static __thread char thread_lkowner_buf[GF_LKOWNER_BUF_SIZE] = {}; +static __thread char thread_leaseid_buf[GF_LEASE_ID_BUF_SIZE] = {}; -void -gf_op_list_init() +int +gf_global_mem_acct_enable_get(void) { - gf_fop_list[GF_FOP_NULL] = "NULL"; - gf_fop_list[GF_FOP_STAT] = "STAT"; - gf_fop_list[GF_FOP_READLINK] = "READLINK"; - gf_fop_list[GF_FOP_MKNOD] = "MKNOD"; - gf_fop_list[GF_FOP_MKDIR] = "MKDIR"; - gf_fop_list[GF_FOP_UNLINK] = "UNLINK"; - gf_fop_list[GF_FOP_RMDIR] = "RMDIR"; - gf_fop_list[GF_FOP_SYMLINK] = "SYMLINK"; - gf_fop_list[GF_FOP_RENAME] = "RENAME"; - gf_fop_list[GF_FOP_LINK] = "LINK"; - gf_fop_list[GF_FOP_TRUNCATE] = "TRUNCATE"; - gf_fop_list[GF_FOP_OPEN] = "OPEN"; - gf_fop_list[GF_FOP_READ] = "READ"; - gf_fop_list[GF_FOP_WRITE] = "WRITE"; - gf_fop_list[GF_FOP_STATFS] = "STATFS"; - gf_fop_list[GF_FOP_FLUSH] = "FLUSH"; - gf_fop_list[GF_FOP_FSYNC] = "FSYNC"; - gf_fop_list[GF_FOP_SETXATTR] = "SETXATTR"; - gf_fop_list[GF_FOP_GETXATTR] = "GETXATTR"; - gf_fop_list[GF_FOP_REMOVEXATTR] = "REMOVEXATTR"; - gf_fop_list[GF_FOP_OPENDIR] = "OPENDIR"; - gf_fop_list[GF_FOP_FSYNCDIR] = "FSYNCDIR"; - gf_fop_list[GF_FOP_ACCESS] = "ACCESS"; - gf_fop_list[GF_FOP_CREATE] = "CREATE"; - gf_fop_list[GF_FOP_FTRUNCATE] = "FTRUNCATE"; - gf_fop_list[GF_FOP_FSTAT] = "FSTAT"; - gf_fop_list[GF_FOP_LK] = "LK"; - gf_fop_list[GF_FOP_LOOKUP] = "LOOKUP"; - gf_fop_list[GF_FOP_READDIR] = "READDIR"; - gf_fop_list[GF_FOP_INODELK] = "INODELK"; - gf_fop_list[GF_FOP_FINODELK] = "FINODELK"; - gf_fop_list[GF_FOP_ENTRYLK] = "ENTRYLK"; - gf_fop_list[GF_FOP_FENTRYLK] = "FENTRYLK"; - gf_fop_list[GF_FOP_XATTROP] = "XATTROP"; - gf_fop_list[GF_FOP_FXATTROP] = "FXATTROP"; - gf_fop_list[GF_FOP_FSETXATTR] = "FSETXATTR"; - gf_fop_list[GF_FOP_FGETXATTR] = "FGETXATTR"; - gf_fop_list[GF_FOP_RCHECKSUM] = "RCHECKSUM"; - gf_fop_list[GF_FOP_SETATTR] = "SETATTR"; - gf_fop_list[GF_FOP_FSETATTR] = "FSETATTR"; - gf_fop_list[GF_FOP_READDIRP] = "READDIRP"; - gf_fop_list[GF_FOP_GETSPEC] = "GETSPEC"; - gf_fop_list[GF_FOP_FORGET] = "FORGET"; - gf_fop_list[GF_FOP_RELEASE] = "RELEASE"; - gf_fop_list[GF_FOP_RELEASEDIR] = "RELEASEDIR"; - - gf_fop_list[GF_MGMT_NULL] = "NULL"; - return; + return gf_global_mem_acct_enable; } - -/* CTX */ -static glusterfs_ctx_t *glusterfs_ctx; - - int -glusterfs_ctx_init () +gf_global_mem_acct_enable_set(int val) { - int ret = 0; + gf_global_mem_acct_enable = val; + return 0; +} - if (glusterfs_ctx) - goto out; +static struct xlator_cbks global_cbks = { + .forget = NULL, + .release = NULL, + .releasedir = NULL, + .invalidate = NULL, + .client_destroy = NULL, + .client_disconnect = NULL, + .ictxmerge = NULL, + .ictxsize = NULL, + .fdctxsize = NULL, +}; + +/* This is required to get through the check in graph.c */ +static struct xlator_fops global_fops = {}; + +static int +global_xl_reconfigure(xlator_t *this, dict_t *options) +{ + int ret = -1; + gf_boolean_t bool_opt = _gf_false; + + /* This is not added in volume dump, hence adding the options in log + would be helpful for debugging later */ + dict_dump_to_log(options); - glusterfs_ctx = CALLOC (1, sizeof (*glusterfs_ctx)); - if (!glusterfs_ctx) { - ret = -1; - goto out; - } + GF_OPTION_RECONF("measure-latency", bool_opt, options, bool, out); + this->ctx->measure_latency = bool_opt; - INIT_LIST_HEAD (&glusterfs_ctx->graphs); - ret = pthread_mutex_init (&glusterfs_ctx->lock, NULL); + GF_OPTION_RECONF("metrics-dump-path", this->ctx->config.metrics_dumppath, + options, str, out); + /* TODO: add more things here */ + ret = 0; out: - return ret; + return ret; } - -glusterfs_ctx_t * -glusterfs_ctx_get () +static int +global_xl_init(xlator_t *this) { - return glusterfs_ctx; + int ret = -1; + gf_boolean_t bool_opt = false; -} + GF_OPTION_INIT("measure-latency", bool_opt, bool, out); + this->ctx->measure_latency = bool_opt; + GF_OPTION_INIT("metrics-dump-path", this->ctx->config.metrics_dumppath, str, + out); -/* THIS */ + ret = 0; -xlator_t global_xlator; -static pthread_key_t this_xlator_key; - -void -glusterfs_this_destroy (void *ptr) -{ - if (ptr) - FREE (ptr); +out: + return ret; } - -int -glusterfs_this_init () +static void +global_xl_fini(xlator_t *this) { - int ret = 0; - - ret = pthread_key_create (&this_xlator_key, glusterfs_this_destroy); - if (ret != 0) { - return ret; - } - - global_xlator.name = "glusterfs"; - global_xlator.type = "global"; - global_xlator.ctx = glusterfs_ctx; - - return ret; + return; } +struct volume_options global_xl_options[] = { + {.key = {"measure-latency"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "no", + .op_version = {GD_OP_VERSION_4_0_0}, + .flags = OPT_FLAG_SETTABLE, + .tags = {"global", "context"}, + .description = "Use this option to toggle measuring latency"}, + {.key = {"metrics-dump-path"}, + .type = GF_OPTION_TYPE_STR, + .default_value = "{{gluster_workdir}}/metrics", + .op_version = {GD_OP_VERSION_4_0_0}, + .flags = OPT_FLAG_SETTABLE, + .tags = {"global", "context"}, + .description = "Use this option to set the metrics dump path"}, + + { + .key = {NULL}, + }, +}; + +static volume_opt_list_t global_xl_opt_list; -xlator_t ** -__glusterfs_this_location () +void +glusterfs_this_init() { - xlator_t **this_location = NULL; - int ret = 0; - - this_location = pthread_getspecific (this_xlator_key); - - if (!this_location) { - this_location = CALLOC (1, sizeof (*this_location)); - if (!this_location) - goto out; - - ret = pthread_setspecific (this_xlator_key, this_location); - if (ret != 0) { - FREE (this_location); - this_location = NULL; - goto out; - } - } -out: - if (this_location) { - if (!*this_location) - *this_location = &global_xlator; - } - return this_location; + global_xlator.name = "glusterfs"; + global_xlator.type = GF_GLOBAL_XLATOR_NAME; + global_xlator.cbks = &global_cbks; + global_xlator.fops = &global_fops; + global_xlator.reconfigure = global_xl_reconfigure; + global_xlator.init = global_xl_init; + global_xlator.fini = global_xl_fini; + + INIT_LIST_HEAD(&global_xlator.volume_options); + INIT_LIST_HEAD(&global_xl_opt_list.list); + global_xl_opt_list.given_opt = global_xl_options; + + list_add_tail(&global_xl_opt_list.list, &global_xlator.volume_options); } - -xlator_t * -glusterfs_this_get () +xlator_t ** +__glusterfs_this_location() { - xlator_t **this_location = NULL; + xlator_t **this_location; - this_location = __glusterfs_this_location (); - if (!this_location) - return &global_xlator; + this_location = &thread_xlator; + if (*this_location == NULL) { + thread_xlator = &global_xlator; + } - return *this_location; + return this_location; } - -int -glusterfs_this_set (xlator_t *this) +xlator_t * +glusterfs_this_get() { - xlator_t **this_location = NULL; - - this_location = __glusterfs_this_location (); - if (!this_location) - return -ENOMEM; - - *this_location = this; - - return 0; + return *__glusterfs_this_location(); } - -/* IS_CENTRAL_LOG */ - -static pthread_key_t central_log_flag_key; - void -glusterfs_central_log_flag_destroy (void *ptr) +glusterfs_this_set(xlator_t *this) { - if (ptr) - FREE (ptr); + thread_xlator = this; } +/* SYNCOPCTX */ -int -glusterfs_central_log_flag_init () +void * +syncopctx_getctx() { - int ret = 0; - - ret = pthread_key_create (¢ral_log_flag_key, - glusterfs_central_log_flag_destroy); - - if (ret != 0) { - return ret; - } + return &thread_syncopctx; +} - pthread_setspecific (central_log_flag_key, (void *) 0); +/* SYNCTASK */ - return ret; +void * +synctask_get() +{ + return thread_synctask; } - void -glusterfs_central_log_flag_set () +synctask_set(void *synctask) { - pthread_setspecific (central_log_flag_key, (void *) 1); + thread_synctask = synctask; } +// UUID_BUFFER -long -glusterfs_central_log_flag_get () +char * +glusterfs_uuid_buf_get() { - long flag = 0; - - flag = (long) pthread_getspecific (central_log_flag_key); - - return flag; + return thread_uuid_buf; } +/* LKOWNER_BUFFER */ -void -glusterfs_central_log_flag_unset () +char * +glusterfs_lkowner_buf_get() { - pthread_setspecific (central_log_flag_key, (void *) 0); + return thread_lkowner_buf; } +/* Leaseid buffer */ - -/* SYNCTASK */ - -static pthread_key_t synctask_key; - - -int -synctask_init () +char * +glusterfs_leaseid_buf_get() { - int ret = 0; + char *buf = NULL; - ret = pthread_key_create (&synctask_key, NULL); + buf = thread_leaseid; + if (buf == NULL) { + buf = thread_leaseid_buf; + thread_leaseid = buf; + } - return ret; + return buf; } - -void * -synctask_get () +char * +glusterfs_leaseid_exist() { - void *synctask = NULL; + return thread_leaseid; +} - synctask = pthread_getspecific (synctask_key); +static void +glusterfs_cleanup(void *ptr) +{ + if (thread_syncopctx.groups != NULL) { + GF_FREE(thread_syncopctx.groups); + } - return synctask; + mem_pool_thread_destructor(NULL); } +void +gf_thread_needs_cleanup(void) +{ + /* The value stored in free_key TLS is not really used for anything, but + * pthread implementation doesn't call the TLS destruction function unless + * it's != NULL. This function must be called whenever something is + * allocated for this thread so that glusterfs_cleanup() will be called + * and resources can be released. */ + (void)pthread_setspecific(free_key, (void *)1); +} -int -synctask_set (void *synctask) +static void +gf_globals_init_once() { - int ret = 0; + int ret = 0; - pthread_setspecific (synctask_key, synctask); + glusterfs_this_init(); - return ret; -} + /* This is needed only to cleanup the potential allocation of + * thread_syncopctx.groups. */ + ret = pthread_key_create(&free_key, glusterfs_cleanup); + if (ret != 0) { + gf_msg("", GF_LOG_ERROR, ret, LG_MSG_PTHREAD_KEY_CREATE_FAILED, + "failed to create the pthread key"); + gf_msg("", GF_LOG_CRITICAL, 0, LG_MSG_GLOBAL_INIT_FAILED, + "Exiting as global initialization failed"); + + exit(ret); + } +} int -glusterfs_globals_init () +glusterfs_globals_init(glusterfs_ctx_t *ctx) { - int ret = 0; + int ret = 0; - gf_op_list_init (); + gf_log_globals_init(ctx, GF_LOG_INFO); - ret = glusterfs_ctx_init (); - if (ret) - goto out; + ret = pthread_once(&globals_inited, gf_globals_init_once); - ret = glusterfs_this_init (); - if (ret) - goto out; + if (ret) + gf_msg("", GF_LOG_CRITICAL, ret, LG_MSG_PTHREAD_FAILED, + "pthread_once failed"); - ret = glusterfs_central_log_flag_init (); - if (ret) - goto out; - - gf_mem_acct_enable_set (); - - ret = synctask_init (); - if (ret) - goto out; - -out: - return ret; + return ret; } |