TAKE2[PATCH BUG:213 1/1] Support for Process State Dump

Support for process state dump.

Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 213 (Support for process state dump)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=213

1 files changed, 78 insertions, 0 deletions

diff --git a/libglusterfs/src/statedump.h b/libglusterfs/src/statedump.h
new file mode 100644
index 00000000000..9ac50ec0c0a
--- /dev/null
+++ b/libglusterfs/src/statedump.h
@@ -0,0 +1,78 @@
+/*
+  Copyright (c) 2009 Z RESEARCH, Inc. <http://www.zresearch.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/>.
+*/
+
+
+#ifndef STATEDUMP_H
+#define STATEDUMP_H   
+
+#include <stdarg.h>
+#include "inode.h"
+
+#define GF_DUMP_MAX_BUF_LEN 4096
+
+#define GF_DUMP_LOGFILE_ROOT "/tmp/glusterdump"
+#define GF_DUMP_LOGFILE_ROOT_LEN 256
+
+static inline
+void _gf_proc_dump_build_key (char *key, const char *prefix, char *fmt,...)
+{
+        char buf[GF_DUMP_MAX_BUF_LEN];
+        va_list ap;
+
+        memset(buf, 0, sizeof(buf));
+        va_start(ap, fmt);
+        vsnprintf(buf, GF_DUMP_MAX_BUF_LEN, fmt, ap);
+        va_end(ap);
+        snprintf(key, GF_DUMP_MAX_BUF_LEN, "%s.%s", prefix, buf);  
+}
+
+#define gf_proc_dump_build_key(key, key_prefix, fmt...) \
+{\
+        _gf_proc_dump_build_key(key, key_prefix, ##fmt);\
+}
+
+typedef void (*inode_priv_dump_fn) (inode_t *);
+
+void
+gf_proc_dump_init();
+
+void 
+gf_proc_dump_fini(void);
+
+void
+gf_proc_dump_cleanup(void);
+
+void
+gf_proc_dump_info(int signum);
+
+void
+gf_proc_dump_add_section(char *key,...);
+
+void
+gf_proc_dump_write(char *key, char *value,...);
+
+void
+inode_table_dump(inode_table_t *itable, char *prefix, inode_priv_dump_fn fn);
+
+void
+fdtable_dump(fdtable_t *fdtable, char *prefix);
+
+void
+inode_dump(inode_t *inode, char *prefix, inode_priv_dump_fn fn);
+#endif /* STATEDUMP_H */