* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
#include <libcfs/libcfs.h>
-#include <sys/mman.h>
-#ifndef __CYGWIN__
-#include <stdint.h>
-#ifdef HAVE_ASM_PAGE_H
-#include <asm/page.h>
-#endif
-#ifdef HAVE_SYS_USER_H
-#include <sys/user.h>
-#endif
-#else
-#include <sys/types.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/stat.h>
-#ifdef HAVE_SYS_VFS_H
-#include <sys/vfs.h>
-#endif
-
/*
- * Sleep channel. No-op implementation.
+ * Wait queue. No-op implementation.
*/
void cfs_waitq_init(struct cfs_waitq *waitq)
(void)link;
}
-void cfs_waitq_forward(struct cfs_waitlink *link, struct cfs_waitq *waitq)
-{
- LASSERT(waitq != NULL);
- LASSERT(link != NULL);
- (void)waitq;
- (void)link;
-}
-
void cfs_waitq_del(struct cfs_waitq *waitq, struct cfs_waitlink *link)
{
LASSERT(waitq != NULL);
(void)waitq;
}
-void cfs_waitq_wait(struct cfs_waitlink *link, int state)
+void cfs_waitq_wait(struct cfs_waitlink *link, cfs_task_state_t state)
{
LASSERT(link != NULL);
(void)link;
}
-int64_t cfs_waitq_timedwait(struct cfs_waitlink *link, int state, int64_t timeout)
+int64_t cfs_waitq_timedwait(struct cfs_waitlink *link, cfs_task_state_t state,
+ int64_t timeout)
{
LASSERT(link != NULL);
(void)link;
return 0;
}
-#ifdef HAVE_LIBPTHREAD
-
-/*
- * Threads
- */
-
-struct lustre_thread_arg {
- cfs_thread_t f;
- void *arg;
-};
-static void *cfs_thread_helper(void *data)
+void cfs_schedule_timeout(cfs_task_state_t state, int64_t timeout)
{
- struct lustre_thread_arg *targ = data;
- cfs_thread_t f = targ->f;
- void *arg = targ->arg;
-
- free(targ);
-
- (void)f(arg);
- return NULL;
+ cfs_waitlink_t l;
+ /* sleep(timeout) here instead? */
+ cfs_waitq_timedwait(&l, state, timeout);
}
-int cfs_create_thread(cfs_thread_t func, void *arg)
-{
- pthread_t tid;
- pthread_attr_t tattr;
- int rc;
- struct lustre_thread_arg *targ_p = malloc(sizeof(struct lustre_thread_arg));
- if ( targ_p == NULL )
- return -ENOMEM;
-
- targ_p->f = func;
- targ_p->arg = arg;
+void
+cfs_pause(cfs_duration_t d)
+{
+ struct timespec s;
- pthread_attr_init(&tattr);
- pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED);
- rc = pthread_create(&tid, &tattr, cfs_thread_helper, targ_p);
- pthread_attr_destroy(&tattr);
- return -rc;
+ cfs_duration_nsec(d, &s);
+ nanosleep(&s, NULL);
}
-#endif
-uid_t cfs_curproc_uid(void)
+int cfs_need_resched(void)
{
- return getuid();
+ return 0;
}
-int cfs_parse_int_tunable(int *value, char *name)
+void cfs_cond_resched(void)
{
- char *env = getenv(name);
- char *end;
-
- if (env == NULL)
- return 0;
-
- *value = strtoull(env, &end, 0);
- if (*end == 0)
- return 0;
-
- CERROR("Can't parse tunable %s=%s\n", name, env);
- return -EINVAL;
}
/*
- * Allocator
+ * Timer
*/
-cfs_page_t *cfs_alloc_page(unsigned int flags)
+void cfs_init_timer(cfs_timer_t *t)
{
- cfs_page_t *pg = malloc(sizeof(*pg));
-
- if (!pg)
- return NULL;
- pg->addr = malloc(CFS_PAGE_SIZE);
-
- if (!pg->addr) {
- free(pg);
- return NULL;
- }
- return pg;
+ CFS_INIT_LIST_HEAD(&t->tl_list);
}
-void cfs_free_page(cfs_page_t *pg)
+void cfs_timer_init(cfs_timer_t *l, cfs_timer_func_t *func, void *arg)
{
- free(pg->addr);
- free(pg);
+ CFS_INIT_LIST_HEAD(&l->tl_list);
+ l->function = func;
+ l->data = (ulong_ptr_t)arg;
+ return;
}
-void *cfs_page_address(cfs_page_t *pg)
+int cfs_timer_is_armed(cfs_timer_t *l)
{
- return pg->addr;
+ if (cfs_time_before(cfs_time_current(), l->expires))
+ return 1;
+ else
+ return 0;
}
-void *cfs_kmap(cfs_page_t *pg)
+void cfs_timer_arm(cfs_timer_t *l, cfs_time_t deadline)
{
- return pg->addr;
+ l->expires = deadline;
}
-void cfs_kunmap(cfs_page_t *pg)
+void cfs_timer_disarm(cfs_timer_t *l)
{
}
+cfs_time_t cfs_timer_deadline(cfs_timer_t *l)
+{
+ return l->expires;
+}
+
+
+#ifdef HAVE_LIBPTHREAD
/*
- * SLAB allocator
+ * Threads
*/
-cfs_mem_cache_t *
-cfs_mem_cache_create(const char *name, size_t objsize, size_t off, unsigned long flags)
+struct lustre_thread_arg {
+ cfs_thread_t f;
+ void *arg;
+};
+static void *cfs_thread_helper(void *data)
{
- cfs_mem_cache_t *c;
+ struct lustre_thread_arg *targ = data;
+ cfs_thread_t f = targ->f;
+ void *arg = targ->arg;
- c = malloc(sizeof(*c));
- if (!c)
- return NULL;
- c->size = objsize;
- CDEBUG(D_MALLOC, "alloc slab cache %s at %p, objsize %d\n",
- name, c, (int)objsize);
- return c;
-}
+ free(targ);
-int cfs_mem_cache_destroy(cfs_mem_cache_t *c)
-{
- CDEBUG(D_MALLOC, "destroy slab cache %p, objsize %u\n", c, c->size);
- free(c);
- return 0;
+ (void)f(arg);
+ return NULL;
}
-
-void *cfs_mem_cache_alloc(cfs_mem_cache_t *c, int gfp)
+int cfs_create_thread(cfs_thread_t func, void *arg)
{
- return cfs_alloc(c->size, gfp);
+ pthread_t tid;
+ pthread_attr_t tattr;
+ int rc;
+ struct lustre_thread_arg *targ_p = malloc(sizeof(struct lustre_thread_arg));
+
+ if ( targ_p == NULL )
+ return -ENOMEM;
+
+ targ_p->f = func;
+ targ_p->arg = arg;
+
+ pthread_attr_init(&tattr);
+ pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED);
+ rc = pthread_create(&tid, &tattr, cfs_thread_helper, targ_p);
+ pthread_attr_destroy(&tattr);
+ return -rc;
}
+#endif
-void cfs_mem_cache_free(cfs_mem_cache_t *c, void *addr)
+uid_t cfs_curproc_uid(void)
{
- cfs_free(addr);
+ return getuid();
}
void cfs_enter_debugger(void)
{
cfs_sigset_t old;
int rc;
-
+
rc = sigprocmask(SIG_SETMASK, &blocks, &old);
LASSERT (rc == 0);
void cfs_stack_trace_fill(struct cfs_stack_trace *trace)
{
- backtrace(trace->frame, sizeof_array(trace->frame));
+ backtrace(trace->frame, ARRAY_SIZE(trace->frame));
}
void *cfs_stack_trace_frame(struct cfs_stack_trace *trace, int frame_no)
{
- if (0 <= frame_no && frame_no < sizeof_array(trace->frame))
+ if (0 <= frame_no && frame_no < ARRAY_SIZE(trace->frame))
return trace->frame[frame_no];
else
return NULL;
/* __linux__ */
#endif
-void lbug_with_loc(char *file, const char *func, const int line)
+void lbug_with_loc(const char *file, const char *func, const int line)
{
/* No libcfs_catastrophe in userspace! */
libcfs_debug_msg(NULL, 0, D_EMERG, file, func, line, "LBUG\n");
git://git.whamcloud.com / fs / lustre-release.git / blobdiff