1 files changed, 107 insertions, 0 deletions
diff --git a/src/svm/svm.h b/src/svm/svm.h
new file mode 100644
index 00000000..894c3d95
--- /dev/null
+++ b/src/svm/svm.h
@@ -0,0 +1,107 @@
+/*
+ *------------------------------------------------------------------
+ * svm.h - shared VM allocation, mmap(...MAP_FIXED...)
+ * brain police
+ *
+ * Copyright (c) 2009 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __included_svm_h__
+#define __included_svm_h__
+
+#include <pthread.h>
+#include <vppinfra/clib.h>
+#include <vppinfra/mem.h>
+#include <svm/svm_common.h>
+
+#define MMAP_PAGESIZE (clib_mem_get_page_size())
+
+static inline void *
+svm_mem_alloc (svm_region_t * rp, uword size)
+{
+  u8 *oldheap;
+  ASSERT (rp->flags & SVM_FLAGS_MHEAP);
+  u8 *rv;
+
+  pthread_mutex_lock (&rp->mutex);
+  oldheap = clib_mem_set_heap (rp->data_heap);
+  rv = clib_mem_alloc (size);
+  clib_mem_set_heap (oldheap);
+  pthread_mutex_unlock (&rp->mutex);
+  return (rv);
+}
+
+static inline void *
+svm_mem_alloc_aligned_at_offset (svm_region_t * rp,
+				 uword size, uword align, uword offset)
+{
+  u8 *oldheap;
+  ASSERT (rp->flags & SVM_FLAGS_MHEAP);
+  u8 *rv;
+
+  pthread_mutex_lock (&rp->mutex);
+  oldheap = clib_mem_set_heap (rp->data_heap);
+  rv = clib_mem_alloc_aligned_at_offset (size, align, offset,
+					 1 /* yes, call os_out_of_memory */ );
+  clib_mem_set_heap (oldheap);
+  pthread_mutex_unlock (&rp->mutex);
+  return (rv);
+}
+
+static inline void
+svm_mem_free (svm_region_t * rp, void *ptr)
+{
+  u8 *oldheap;
+  ASSERT (rp->flags & SVM_FLAGS_MHEAP);
+
+  pthread_mutex_lock (&rp->mutex);
+  oldheap = clib_mem_set_heap (rp->data_heap);
+  clib_mem_free (ptr);
+  clib_mem_set_heap (oldheap);
+  pthread_mutex_unlock (&rp->mutex);
+
+}
+
+static inline void *
+svm_push_pvt_heap (svm_region_t * rp)
+{
+  u8 *oldheap;
+  oldheap = clib_mem_set_heap (rp->region_heap);
+  return ((void *) oldheap);
+}
+
+static inline void *
+svm_push_data_heap (svm_region_t * rp)
+{
+  u8 *oldheap;
+  oldheap = clib_mem_set_heap (rp->data_heap);
+  return ((void *) oldheap);
+}
+
+static inline void
+svm_pop_heap (void *oldheap)
+{
+  clib_mem_set_heap (oldheap);
+}
+
+#endif /* __included_svm_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */