diff options
Diffstat (limited to 'xlators/playground/template/src')
| -rw-r--r-- | xlators/playground/template/src/Makefile.am | 5 | ||||
| -rw-r--r-- | xlators/playground/template/src/template.c | 182 | ||||
| -rw-r--r-- | xlators/playground/template/src/template.h | 36 |
3 files changed, 195 insertions, 28 deletions
diff --git a/xlators/playground/template/src/Makefile.am b/xlators/playground/template/src/Makefile.am index ef88d4d48bb..e76a717a550 100644 --- a/xlators/playground/template/src/Makefile.am +++ b/xlators/playground/template/src/Makefile.am @@ -1,5 +1,5 @@ xlator_LTLIBRARIES = template.la -xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/testing/features +xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/playground template_la_LDFLAGS = -module $(GF_XLATOR_DEFAULT_LDFLAGS) @@ -8,7 +8,8 @@ template_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la noinst_HEADERS = template.h -AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src +AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \ + -I$(top_srcdir)/rpc/xdr/src -I$(top_builddir)/rpc/xdr/src AM_CFLAGS = -Wall $(GF_CFLAGS) diff --git a/xlators/playground/template/src/template.c b/xlators/playground/template/src/template.c index c4db42debd0..2f25d2363a6 100644 --- a/xlators/playground/template/src/template.c +++ b/xlators/playground/template/src/template.c @@ -1,5 +1,5 @@ /* - Copyright (c) 2006-2012 Red Hat, Inc. <http://www.redhat.com> + Copyright (c) 2006-2018 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. This file is licensed to you under your choice of the GNU Lesser @@ -8,37 +8,179 @@ cases as published by the Free Software Foundation. */ #include "template.h" +#include <glusterfs/statedump.h> -int32_t -init (xlator_t *this) +static int32_t +template_mem_acct_init(xlator_t *this) { + int ret = -1; - if (!this->children || this->children->next) { - gf_log (this->name, GF_LOG_ERROR, - "not configured with exactly one child. exiting"); - return -1; - } + GF_VALIDATE_OR_GOTO("template", this, out); - if (!this->parents) { - gf_log (this->name, GF_LOG_WARNING, - "dangling volume. check volfile "); - } + ret = xlator_mem_acct_init(this, gf_template_mt_end + 1); - return 0; + if (ret != 0) { + gf_msg(this->name, GF_LOG_ERROR, ENOMEM, TEMPLATE_MSG_NO_MEMORY, + "Memory accounting init failed"); + goto out; + } + + ret = 0; +out: + return ret; +} + +static int32_t +template_priv_to_dict(xlator_t *this, dict_t *dict, char *brickname) +{ + int ret = 0; + template_private_t *priv = NULL; + + priv = this->private; + ret = dict_set_uint64(dict, "template.dummy", priv->dummy); + if (ret) + gf_msg_debug(this->name, ENOMEM, "dict_set of dummy key failed"); + + return 0; +} + +static int32_t +template_priv(xlator_t *this) +{ + template_private_t *priv = NULL; + + priv = this->private; + gf_proc_dump_write("template.dummy", "%" PRId32, priv->dummy); + + return 0; +} + +static int32_t +template_dump_metrics(xlator_t *this, int fd) +{ + template_private_t *priv = NULL; + + priv = this->private; + /* NOTE: currently this is adding private variable, which can + be constant here. But in reality, things which are changing + can be added here, so we get to plot them on graph. */ + dprintf(fd, "%s.private.dummy %d\n", this->name, priv->dummy); + + return 0; +} + +static int32_t +template_init(xlator_t *this) +{ + int ret = -1; + template_private_t *priv = NULL; + + if (!this->children || this->children->next) { + gf_msg(this->name, GF_LOG_ERROR, EINVAL, TEMPLATE_MSG_NO_GRAPH, + "not configured with exactly one child. exiting"); + goto out; + } + + if (!this->parents) { + gf_msg(this->name, GF_LOG_ERROR, EINVAL, TEMPLATE_MSG_NO_GRAPH, + "dangling volume. check volfile "); + goto out; + } + + priv = GF_CALLOC(1, sizeof(template_private_t), gf_template_mt_private_t); + if (!priv) { + gf_msg(this->name, GF_LOG_ERROR, ENOMEM, TEMPLATE_MSG_NO_MEMORY, + "priv allocation failed"); + goto out; + } + + GF_OPTION_INIT("dummy", priv->dummy, int32, out); + + this->private = priv; + priv = NULL; + ret = 0; + +out: + if (priv) + GF_FREE(priv); + + return ret; +} + +static int +template_reconfigure(xlator_t *this, dict_t *options) +{ + int ret = -1; + template_private_t *priv = NULL; + + priv = this->private; + + GF_OPTION_RECONF("dummy", priv->dummy, options, int32, out); + + ret = 0; +out: + return ret; +} + +static void +template_fini(xlator_t *this) +{ + template_private_t *priv = NULL; + + priv = this->private; + this->private = NULL; + + GF_FREE(priv); } -void -fini (xlator_t *this) +static int +template_notify(xlator_t *this, int32_t event, void *data, ...) { - return; + switch (event) { + default: + default_notify(this, event, data); + gf_msg_debug(this->name, 0, "event %d received", event); + } + + return 0; } -struct xlator_fops fops = { +struct xlator_fops template_fops = {}; + +struct xlator_cbks template_cbks = {}; + +struct xlator_dumpops template_dumpops = { + .priv = template_priv, + .priv_to_dict = template_priv_to_dict, }; -struct xlator_cbks cbks = { +struct volume_options template_options[] = { + { + .key = {"dummy"}, + .type = GF_OPTION_TYPE_INT, + .min = 1, + .max = 1024, + .default_value = "1", + .description = "a dummy option to show how to set the option", + .op_version = {GD_OP_VERSION_5_0}, + .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC, + .level = OPT_STATUS_EXPERIMENTAL, + .tags = {"development", "experimental", "template"}, + }, + {.key = {NULL}}, }; -struct volume_options options[] = { - { .key = {NULL} }, +xlator_api_t xlator_api = { + .init = template_init, + .fini = template_fini, + .notify = template_notify, + .reconfigure = template_reconfigure, + .mem_acct_init = template_mem_acct_init, + .dump_metrics = template_dump_metrics, + .op_version = {GD_OP_VERSION_5_0}, + .dumpops = &template_dumpops, + .fops = &template_fops, + .cbks = &template_cbks, + .options = template_options, + .identifier = "template", }; diff --git a/xlators/playground/template/src/template.h b/xlators/playground/template/src/template.h index 2e9752cac09..c53dc1c7010 100644 --- a/xlators/playground/template/src/template.h +++ b/xlators/playground/template/src/template.h @@ -1,5 +1,5 @@ /* - Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com> + Copyright (c) 2013-2018 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. This file is licensed to you under your choice of the GNU Lesser @@ -10,10 +10,34 @@ #ifndef __TEMPLATE_H__ #define __TEMPLATE_H__ -#include "glusterfs.h" -#include "logging.h" -#include "dict.h" -#include "xlator.h" -#include "defaults.h" +#include <glusterfs/glusterfs.h> +#include <glusterfs/logging.h> +#include <glusterfs/dict.h> +#include <glusterfs/xlator.h> +#include <glusterfs/defaults.h> + +struct template_private { + /* Add all the relevant fields you need here */ + int32_t dummy; +}; + +typedef struct template_private template_private_t; + +/* Below section goes to template-mem-types.h */ +#include <glusterfs/mem-types.h> + +enum gf_template_mem_types_ { + gf_template_mt_private_t = gf_common_mt_end + 1, + gf_template_mt_end, +}; + +/* This normally goes to another file 'template-messages.h", + required for 'gf_msg()'. + NOTE: make sure you have added your component (in this case, + TEMPLATE) in `libglusterfs/src/glfs-message-id.h`. + */ +#include <glusterfs/glfs-message-id.h> + +GLFS_MSGID(TEMPLATE, TEMPLATE_MSG_NO_MEMORY, TEMPLATE_MSG_NO_GRAPH); #endif /* __TEMPLATE_H__ */ |