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Diffstat (limited to 'libglusterfs/src/graph-print.c')
-rw-r--r--libglusterfs/src/graph-print.c245
1 files changed, 90 insertions, 155 deletions
diff --git a/libglusterfs/src/graph-print.c b/libglusterfs/src/graph-print.c
index 53d8643ee0d..595d74330a1 100644
--- a/libglusterfs/src/graph-print.c
+++ b/libglusterfs/src/graph-print.c
@@ -1,200 +1,135 @@
/*
- Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
+ Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.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 Affero 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
- Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see
- <http://www.gnu.org/licenses/>.
+ 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.
*/
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
#include <sys/uio.h>
-#include "common-utils.h"
-#include "xlator.h"
-#include "graph-mem-types.h"
-#include "graph-utils.h"
-
-
+#include "glusterfs/common-utils.h"
+#include "glusterfs/xlator.h"
+#include "glusterfs/graph-utils.h"
+#include "glusterfs/libglusterfs-messages.h"
struct gf_printer {
- ssize_t (*write) (struct gf_printer *gp, char *buf, size_t len);
- void *priv;
+ ssize_t (*write)(struct gf_printer *gp, char *buf, size_t len);
+ void *priv;
+ int len;
};
static ssize_t
-gp_write_file (struct gf_printer *gp, char *buf, size_t len)
+gp_write_file(struct gf_printer *gp, char *buf, size_t len)
{
- FILE *f = gp->priv;
+ FILE *f = gp->priv;
- if (fwrite (buf, len, 1, f) != 1) {
- gf_log ("graph-print", GF_LOG_ERROR, "fwrite failed (%s)",
- strerror (errno));
+ if (fwrite(buf, len, 1, f) != 1) {
+ gf_msg("graph-print", GF_LOG_ERROR, errno, LG_MSG_FWRITE_FAILED,
+ "fwrite failed");
- return -1;
- }
+ return -1;
+ }
- return len;
+ return len;
}
-static ssize_t
-gp_write_buf (struct gf_printer *gp, char *buf, size_t len)
+static int
+gpprintf(struct gf_printer *gp, const char *format, ...)
{
- struct iovec *iov = gp->priv;
+ va_list arg;
+ char *str = NULL;
+ int ret = 0;
- if (iov->iov_len < len) {
- gf_log ("graph-print", GF_LOG_ERROR, "buffer full");
+ va_start(arg, format);
+ ret = gf_vasprintf(&str, format, arg);
+ va_end(arg);
- return -1;
- }
+ if (ret < 0)
+ return ret;
+
+ ret = gp->write(gp, str, ret);
- memcpy (iov->iov_base, buf, len);
- iov->iov_base += len;
- iov->iov_len -= len;
+ GF_FREE(str);
- return len;
+ return ret;
}
+#define GPPRINTF(gp, fmt, ...) \
+ do { \
+ ret = gpprintf(gp, fmt, ##__VA_ARGS__); \
+ if (ret == -1) \
+ goto out; \
+ else \
+ gp->len += ret; \
+ } while (0)
+
static int
-gpprintf (struct gf_printer *gp, const char *format, ...)
+_print_volume_options(dict_t *d, char *k, data_t *v, void *tmp)
{
- va_list arg;
- char *str = NULL;
- int ret = 0;
+ struct gf_printer *gp = tmp;
+ int ret = 0;
+ GPPRINTF(gp, " option %s %s\n", k, v->data);
+ return 0;
+out:
+ /* means, it is a failure */
+ return -1;
+}
- va_start (arg, format);
- ret = gf_vasprintf (&str, format, arg);
- va_end (arg);
+static int
+glusterfs_graph_print(struct gf_printer *gp, glusterfs_graph_t *graph)
+{
+ xlator_t *trav = NULL;
+ xlator_list_t *xch = NULL;
+ int ret = 0;
+ ssize_t len = 0;
- if (ret < 0)
- return ret;
+ if (!graph->first)
+ return 0;
- ret = gp->write (gp, str, ret);
+ for (trav = graph->first; trav->next; trav = trav->next)
+ ;
+ for (; trav; trav = trav->prev) {
+ GPPRINTF(gp, "volume %s\n type %s\n", trav->name, trav->type);
- GF_FREE (str);
+ ret = dict_foreach(trav->options, _print_volume_options, gp);
+ if (ret)
+ goto out;
- return ret;
-}
+ if (trav->children) {
+ GPPRINTF(gp, " subvolumes");
-static int
-glusterfs_graph_print (struct gf_printer *gp, glusterfs_graph_t *graph)
-{
-#define GPPRINTF(gp, fmt, ...) do { \
- ret = gpprintf (gp, fmt, ## __VA_ARGS__); \
- if (ret == -1) \
- goto out; \
- else \
- len += ret; \
-} while (0)
-
- xlator_t *trav = NULL;
- data_pair_t *pair = NULL;
- xlator_list_t *xch = NULL;
- int ret = 0;
- ssize_t len = 0;
-
- if (!graph->first)
- return 0;
-
- for (trav = graph->first; trav->next; trav = trav->next);
- for (; trav; trav = trav->prev) {
- GPPRINTF (gp, "volume %s\n type %s\n", trav->name,
- trav->type);
-
- for (pair = trav->options->members_list; pair && pair->next;
- pair = pair->next);
- for (; pair; pair = pair->prev)
- GPPRINTF (gp, " option %s %s\n", pair->key,
- pair->value->data);
-
- if (trav->children) {
- GPPRINTF (gp, " subvolumes");
-
- for (xch = trav->children; xch; xch = xch->next)
- GPPRINTF (gp, " %s", xch->xlator->name);
-
- GPPRINTF (gp, "\n");
- }
-
- GPPRINTF (gp, "end-volume\n");
- if (trav != graph->first)
- GPPRINTF (gp, "\n");
+ for (xch = trav->children; xch; xch = xch->next)
+ GPPRINTF(gp, " %s", xch->xlator->name);
+
+ GPPRINTF(gp, "\n");
}
- out:
- if (ret == -1) {
- gf_log ("graph-print", GF_LOG_ERROR, "printing failed");
+ GPPRINTF(gp, "end-volume\n");
+ if (trav != graph->first)
+ GPPRINTF(gp, "\n");
+ }
- return -1;
- }
+out:
+ len = gp->len;
+ if (ret == -1) {
+ gf_msg("graph-print", GF_LOG_ERROR, 0, LG_MSG_PRINT_FAILED,
+ "printing failed");
- return len;
+ return -1;
+ }
+
+ return len;
#undef GPPRINTF
}
int
-glusterfs_graph_print_file (FILE *file, glusterfs_graph_t *graph)
-{
- struct gf_printer gp = { .write = gp_write_file,
- .priv = file
- };
-
- return glusterfs_graph_print (&gp, graph);
-}
-
-char *
-glusterfs_graph_print_buf (glusterfs_graph_t *graph)
+glusterfs_graph_print_file(FILE *file, glusterfs_graph_t *graph)
{
- FILE *f = NULL;
- struct iovec iov = {0,};
- int len = 0;
- char *buf = NULL;
- struct gf_printer gp = { .write = gp_write_buf,
- .priv = &iov
- };
-
- f = fopen ("/dev/null", "a");
- if (!f) {
- gf_log ("graph-print", GF_LOG_ERROR,
- "cannot open /dev/null (%s)", strerror (errno));
-
- return NULL;
- }
- len = glusterfs_graph_print_file (f, graph);
- fclose (f);
- if (len == -1)
- return NULL;
-
- buf = GF_CALLOC (1, len + 1, gf_graph_mt_buf);
- if (!buf) {
- gf_log ("graph-print", GF_LOG_ERROR, "Out of memory");
-
- return NULL;
- }
- iov.iov_base = buf;
- iov.iov_len = len;
-
- len = glusterfs_graph_print (&gp, graph);
- if (len == -1) {
- GF_FREE (buf);
-
- return NULL;
- }
+ struct gf_printer gp = {.write = gp_write_file, .priv = file};
- return buf;
+ return glusterfs_graph_print(&gp, graph);
}
generated by cgit (git 2.34.1) at 2025-12-28 21:59:16 +0000