diff options
Diffstat (limited to 'libglusterfs/src/statedump.c')
| -rw-r--r-- | libglusterfs/src/statedump.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/libglusterfs/src/statedump.c b/libglusterfs/src/statedump.c new file mode 100644 index 0000000000..6839c28f6e --- /dev/null +++ b/libglusterfs/src/statedump.c @@ -0,0 +1,213 @@ +/* + 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/>. +*/ + +#include <stdarg.h> +#include <malloc.h> +#include "glusterfs.h" +#include "logging.h" +#include "iobuf.h" +#include "statedump.h" +#include "stack.h" + + +static pthread_mutex_t gf_proc_dump_mutex; +static int gf_dump_fd = -1; + +static void +gf_proc_dump_lock (void) +{ + pthread_mutex_lock(&gf_proc_dump_mutex); +} + +static void +gf_proc_dump_unlock (void) +{ + pthread_mutex_unlock(&gf_proc_dump_mutex); +} + +static int +gf_proc_dump_open (void) +{ + char path[256]; + int dump_fd = -1; + + memset(path, 0, sizeof(path)); + snprintf(path, sizeof(path), "%s.%d",GF_DUMP_LOGFILE_ROOT, getpid()); + + dump_fd = open(path, O_CREAT|O_RDWR|O_TRUNC|O_APPEND, 0600); + if (dump_fd < 0) { + gf_log("", GF_LOG_ERROR, "Unable to open file: %s" + " errno: %d", path, errno); + return -1; + } + + gf_dump_fd = dump_fd; + return 0; +} + +static void +gf_proc_dump_close (void) +{ + close(gf_dump_fd); + gf_dump_fd = -1; +} + +void +gf_proc_dump_add_section (char *key, ...) +{ + + char buf[GF_DUMP_MAX_BUF_LEN]; + va_list ap; + int ret; + + assert(key); + + memset(buf, 0, sizeof(buf)); + snprintf(buf, GF_DUMP_MAX_BUF_LEN, "\n["); + va_start(ap, key); + vsnprintf(buf + strlen(buf), + GF_DUMP_MAX_BUF_LEN - strlen(buf), key, ap); + va_end(ap); + snprintf(buf + strlen(buf), + GF_DUMP_MAX_BUF_LEN - strlen(buf), "]\n"); + ret = write(gf_dump_fd, buf, strlen(buf)); +} + +void +gf_proc_dump_write (char *key, char *value,...) +{ + + char buf[GF_DUMP_MAX_BUF_LEN]; + int offset = 0; + va_list ap; + int ret; + + offset = strlen(key); + + memset(buf, 0, GF_DUMP_MAX_BUF_LEN); + snprintf(buf, GF_DUMP_MAX_BUF_LEN, "%s",key); + snprintf(buf + offset, GF_DUMP_MAX_BUF_LEN - offset, "="); + offset += 1; + va_start(ap, value); + vsnprintf(buf + offset, GF_DUMP_MAX_BUF_LEN - offset, value, ap); + va_end(ap); + + offset = strlen(buf); + snprintf(buf + offset, GF_DUMP_MAX_BUF_LEN - offset, "\n"); + ret = write(gf_dump_fd, buf, strlen(buf)); +} + + +/* Currently this dumps only mallinfo. More can be built on here */ +void +gf_proc_dump_mem_info () +{ +#ifdef HAVE_MALLOC_STATS + struct mallinfo info; + + memset(&info, 0, sizeof(struct mallinfo)); + info = mallinfo(); + + gf_proc_dump_add_section("mallinfo"); + gf_proc_dump_write("mallinfo_arena", "%d", info.arena); + gf_proc_dump_write("mallinfo_ordblks", "%d", info.ordblks); + gf_proc_dump_write("mallinfo_smblks","%d", info.smblks); + gf_proc_dump_write("mallinfo_hblks","%d", info.hblks); + gf_proc_dump_write("mallinfo_hblkhd", "%d", info.hblkhd); + gf_proc_dump_write("mallinfo_usmblks","%d", info.usmblks); + gf_proc_dump_write("mallinfo_fsmblks","%d", info.fsmblks); + gf_proc_dump_write("mallinfo_uordblks","%d", info.uordblks); + gf_proc_dump_write("mallinfo_fordblks", "%d", info.fordblks); + gf_proc_dump_write("mallinfo_keepcost", "%d", info.keepcost); +#endif + +} + + +void +gf_proc_dump_xlator_info (xlator_t *this_xl) +{ + + if (!this_xl) + return; + + while (this_xl) { + if (!this_xl->dumpops) { + this_xl = this_xl->next; + continue; + } + if (this_xl->dumpops->priv) + this_xl->dumpops->priv(this_xl); + if (this_xl->dumpops->inode) + this_xl->dumpops->inode(this_xl); + if (this_xl->dumpops->fd) + this_xl->dumpops->fd(this_xl); + this_xl = this_xl->next; + } + + return; +} + + +void +gf_proc_dump_info (int signum) +{ + int ret = -1; + glusterfs_ctx_t *ctx = NULL; + + gf_proc_dump_lock(); + ret = gf_proc_dump_open(); + if (ret < 0) + goto out; + gf_proc_dump_mem_info(); + ctx = get_global_ctx_ptr(); + if (ctx) { + iobuf_stats_dump(ctx->iobuf_pool); + gf_proc_dump_pending_frames(ctx->pool); + gf_proc_dump_xlator_info(ctx->graph); + } + + gf_proc_dump_close(); +out: + gf_proc_dump_unlock(); + + return; +} + +void +gf_proc_dump_fini (void) +{ + pthread_mutex_destroy(&gf_proc_dump_mutex); +} + + +void +gf_proc_dump_init () +{ + pthread_mutex_init(&gf_proc_dump_mutex, NULL); + + return; +} + +void +gf_proc_dump_cleanup (void) +{ + pthread_mutex_destroy(&gf_proc_dump_mutex); +} + |