From 77adf4cd648dce41f89469dd185deec6b6b53a0b Mon Sep 17 00:00:00 2001 From: Vikas Gorur Date: Wed, 18 Feb 2009 17:36:07 +0530 Subject: Added all files --- libglusterfs/src/scheduler.c | 80 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 libglusterfs/src/scheduler.c (limited to 'libglusterfs/src/scheduler.c') diff --git a/libglusterfs/src/scheduler.c b/libglusterfs/src/scheduler.c new file mode 100644 index 000000000..3478a9385 --- /dev/null +++ b/libglusterfs/src/scheduler.c @@ -0,0 +1,80 @@ +/* + Copyright (c) 2006, 2007, 2008 Z RESEARCH, Inc. + 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 + . +*/ + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include +#include +#include "xlator.h" +#include "scheduler.h" +#include "list.h" + +struct sched_ops * +get_scheduler (xlator_t *xl, const char *name) +{ + struct sched_ops *tmp_sched = NULL; + volume_opt_list_t *vol_opt = NULL; + char *sched_file = NULL; + void *handle = NULL; + + if (name == NULL) { + gf_log ("scheduler", GF_LOG_ERROR, + "'name' not specified, EINVAL"); + return NULL; + } + + asprintf (&sched_file, "%s/%s.so", SCHEDULERDIR, name); + + gf_log ("scheduler", GF_LOG_DEBUG, + "attempt to load file %s.so", name); + + handle = dlopen (sched_file, RTLD_LAZY); + if (!handle) { + gf_log ("scheduler", GF_LOG_ERROR, + "dlopen(%s): %s", sched_file, dlerror ()); + return NULL; + } + + tmp_sched = dlsym (handle, "sched"); + if (!tmp_sched) { + gf_log ("scheduler", GF_LOG_ERROR, + "dlsym(sched) on %s", dlerror ()); + return NULL; + } + + vol_opt = CALLOC (1, sizeof (volume_opt_list_t)); + vol_opt->given_opt = dlsym (handle, "options"); + if (vol_opt->given_opt == NULL) { + gf_log ("scheduler", GF_LOG_DEBUG, + "volume option validation not specified"); + } else { + list_add_tail (&vol_opt->list, &xl->volume_options); + if (validate_xlator_volume_options (xl, vol_opt->given_opt) + == -1) { + gf_log ("scheduler", GF_LOG_ERROR, + "volume option validation failed"); + return NULL; + } + } + + return tmp_sched; +} -- cgit