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-rw-r--r--vpp/vppinfra/vppinfra/mem_mheap.c165
1 files changed, 165 insertions, 0 deletions
diff --git a/vpp/vppinfra/vppinfra/mem_mheap.c b/vpp/vppinfra/vppinfra/mem_mheap.c
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+/*
+ * Copyright (c) 2015 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.
+ */
+/*
+ Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <vppinfra/format.h>
+#include <vppinfra/mheap.h>
+#include <vppinfra/os.h>
+
+/* Valgrind stuff. */
+#include <vppinfra/memcheck.h>
+#include <vppinfra/valgrind.h>
+
+void *clib_per_cpu_mheaps[CLIB_MAX_MHEAPS];
+
+void
+clib_mem_exit (void)
+{
+ u8 *heap = clib_mem_get_per_cpu_heap ();
+ if (heap)
+ mheap_free (heap);
+ clib_mem_set_per_cpu_heap (0);
+}
+
+/* Initialize CLIB heap based on memory/size given by user.
+ Set memory to 0 and CLIB will try to allocate its own heap. */
+void *
+clib_mem_init (void *memory, uword memory_size)
+{
+ u8 *heap;
+
+ if (memory || memory_size)
+ heap = mheap_alloc (memory, memory_size);
+ else
+ {
+ /* Allocate lots of address space since this will limit
+ the amount of memory the program can allocate.
+ In the kernel we're more conservative since some architectures
+ (e.g. mips) have pretty small kernel virtual address spaces. */
+#ifdef __KERNEL__
+#define MAX_VM_MEG 64
+#else
+#define MAX_VM_MEG 1024
+#endif
+
+ uword alloc_size = MAX_VM_MEG << 20;
+ uword tries = 16;
+
+ while (1)
+ {
+ heap = mheap_alloc (0, alloc_size);
+ if (heap)
+ break;
+ alloc_size = (alloc_size * 3) / 4;
+ tries--;
+ if (tries == 0)
+ break;
+ }
+ }
+
+ clib_mem_set_heap (heap);
+
+ return heap;
+}
+
+#ifdef CLIB_LINUX_KERNEL
+#include <asm/page.h>
+
+uword
+clib_mem_get_page_size (void)
+{
+ return PAGE_SIZE;
+}
+#endif
+
+#ifdef CLIB_UNIX
+uword
+clib_mem_get_page_size (void)
+{
+ return getpagesize ();
+}
+#endif
+
+/* Make a guess for standalone. */
+#ifdef CLIB_STANDALONE
+uword
+clib_mem_get_page_size (void)
+{
+ return 4096;
+}
+#endif
+
+u8 *
+format_clib_mem_usage (u8 * s, va_list * va)
+{
+ int verbose = va_arg (*va, int);
+ return format (s, "%U", format_mheap, clib_mem_get_heap (), verbose);
+}
+
+void
+clib_mem_usage (clib_mem_usage_t * u)
+{
+ mheap_usage (clib_mem_get_heap (), u);
+}
+
+/* Call serial number for debugger breakpoints. */
+uword clib_mem_validate_serial = 0;
+
+void
+clib_mem_validate (void)
+{
+ if (MHEAP_HAVE_SMALL_OBJECT_CACHE)
+ clib_warning ("clib_mem_validate disabled (small object cache is ON)");
+ else
+ {
+ mheap_validate (clib_mem_get_heap ());
+ clib_mem_validate_serial++;
+ }
+}
+
+void
+clib_mem_trace (int enable)
+{
+ mheap_trace (clib_mem_get_heap (), enable);
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */