/* *------------------------------------------------------------------ * 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) { clib_mem_heap_t *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) { clib_mem_heap_t *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) { clib_mem_heap_t *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) { clib_mem_heap_t *oldheap; oldheap = clib_mem_set_heap (rp->region_heap); return ((void *) oldheap); } static inline void * svm_push_data_heap (svm_region_t * rp) { clib_mem_heap_t *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: */