Squashed 'third_party/rawrtc/usrsctp/' content from commit bd1a92db3
Change-Id: If227cd6edd3243ac26044056b7427ae5bca71ef8
git-subtree-dir: third_party/rawrtc/usrsctp
git-subtree-split: bd1a92db338ba1e57453637959a127032bb566ff
diff --git a/usrsctplib/user_malloc.h b/usrsctplib/user_malloc.h
new file mode 100755
index 0000000..73904ca
--- /dev/null
+++ b/usrsctplib/user_malloc.h
@@ -0,0 +1,266 @@
+/*-
+ * Copyright (c) 1987, 1993
+ * The Regents of the University of California.
+ * Copyright (c) 2005 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+/* This file has been renamed user_malloc.h for Userspace */
+#ifndef _USER_MALLOC_H_
+#define _USER_MALLOC_H_
+
+/*__Userspace__*/
+#include <stdlib.h>
+#include <sys/types.h>
+#if !defined (__Userspace_os_Windows)
+#include <strings.h>
+#include <stdint.h>
+#else
+#if defined(_MSC_VER) && _MSC_VER >= 1600
+#include <stdint.h>
+#elif defined(SCTP_STDINT_INCLUDE)
+#include SCTP_STDINT_INCLUDE
+#else
+#define uint32_t unsigned __int32
+#define uint64_t unsigned __int64
+#endif
+#include <winsock2.h>
+#endif
+
+#define MINALLOCSIZE UMA_SMALLEST_UNIT
+
+/*
+ * flags to malloc.
+ */
+#define M_NOWAIT 0x0001 /* do not block */
+#define M_WAITOK 0x0002 /* ok to block */
+#define M_ZERO 0x0100 /* bzero the allocation */
+#define M_NOVM 0x0200 /* don't ask VM for pages */
+#define M_USE_RESERVE 0x0400 /* can alloc out of reserve memory */
+
+#define M_MAGIC 877983977 /* time when first defined :-) */
+
+/*
+ * Two malloc type structures are present: malloc_type, which is used by a
+ * type owner to declare the type, and malloc_type_internal, which holds
+ * malloc-owned statistics and other ABI-sensitive fields, such as the set of
+ * malloc statistics indexed by the compile-time MAXCPU constant.
+ * Applications should avoid introducing dependence on the allocator private
+ * data layout and size.
+ *
+ * The malloc_type ks_next field is protected by malloc_mtx. Other fields in
+ * malloc_type are static after initialization so unsynchronized.
+ *
+ * Statistics in malloc_type_stats are written only when holding a critical
+ * section and running on the CPU associated with the index into the stat
+ * array, but read lock-free resulting in possible (minor) races, which the
+ * monitoring app should take into account.
+ */
+struct malloc_type_stats {
+ uint64_t mts_memalloced; /* Bytes allocated on CPU. */
+ uint64_t mts_memfreed; /* Bytes freed on CPU. */
+ uint64_t mts_numallocs; /* Number of allocates on CPU. */
+ uint64_t mts_numfrees; /* number of frees on CPU. */
+ uint64_t mts_size; /* Bitmask of sizes allocated on CPU. */
+ uint64_t _mts_reserved1; /* Reserved field. */
+ uint64_t _mts_reserved2; /* Reserved field. */
+ uint64_t _mts_reserved3; /* Reserved field. */
+};
+
+#ifndef MAXCPU /* necessary on Linux */
+#define MAXCPU 4 /* arbitrary? */
+#endif
+
+struct malloc_type_internal {
+ struct malloc_type_stats mti_stats[MAXCPU];
+};
+
+/*
+ * ABI-compatible version of the old 'struct malloc_type', only all stats are
+ * now malloc-managed in malloc-owned memory rather than in caller memory, so
+ * as to avoid ABI issues. The ks_next pointer is reused as a pointer to the
+ * internal data handle.
+ */
+struct malloc_type {
+ struct malloc_type *ks_next; /* Next in global chain. */
+ u_long _ks_memuse; /* No longer used. */
+ u_long _ks_size; /* No longer used. */
+ u_long _ks_inuse; /* No longer used. */
+ uint64_t _ks_calls; /* No longer used. */
+ u_long _ks_maxused; /* No longer used. */
+ u_long ks_magic; /* Detect programmer error. */
+ const char *ks_shortdesc; /* Printable type name. */
+
+ /*
+ * struct malloc_type was terminated with a struct mtx, which is no
+ * longer required. For ABI reasons, continue to flesh out the full
+ * size of the old structure, but reuse the _lo_class field for our
+ * internal data handle.
+ */
+ void *ks_handle; /* Priv. data, was lo_class. */
+ const char *_lo_name;
+ const char *_lo_type;
+ u_int _lo_flags;
+ void *_lo_list_next;
+ struct witness *_lo_witness;
+ uintptr_t _mtx_lock;
+ u_int _mtx_recurse;
+};
+
+/*
+ * Statistics structure headers for user space. The kern.malloc sysctl
+ * exposes a structure stream consisting of a stream header, then a series of
+ * malloc type headers and statistics structures (quantity maxcpus). For
+ * convenience, the kernel will provide the current value of maxcpus at the
+ * head of the stream.
+ */
+#define MALLOC_TYPE_STREAM_VERSION 0x00000001
+struct malloc_type_stream_header {
+ uint32_t mtsh_version; /* Stream format version. */
+ uint32_t mtsh_maxcpus; /* Value of MAXCPU for stream. */
+ uint32_t mtsh_count; /* Number of records. */
+ uint32_t _mtsh_pad; /* Pad/reserved field. */
+};
+
+#define MALLOC_MAX_NAME 32
+struct malloc_type_header {
+ char mth_name[MALLOC_MAX_NAME];
+};
+
+/* __Userspace__
+Notice that at places it uses ifdef _KERNEL. That line cannot be
+removed because it causes conflicts with malloc definition in
+/usr/include/malloc.h, which essentially says that malloc.h has
+been overridden by stdlib.h. We will need to use names like
+user_malloc.h for isolating kernel interface headers. using
+original names like malloc.h in a user_include header can be
+confusing, All userspace header files are being placed in ./user_include
+Better still to remove from user_include.h all irrelevant code such
+as that in the block starting with #ifdef _KERNEL. I am only leaving
+it in for the time being to see what functionality is in this file
+that kernel uses.
+
+Start copy: Copied code for __Userspace__ */
+#define MALLOC_DEFINE(type, shortdesc, longdesc) \
+ struct malloc_type type[1] = { \
+ { NULL, 0, 0, 0, 0, 0, M_MAGIC, shortdesc, NULL, NULL, \
+ NULL, 0, NULL, NULL, 0, 0 } \
+ }
+
+/* Removed "extern" in __Userspace__ code */
+/* If we need to use MALLOC_DECLARE before using MALLOC then
+ we have to remove extern.
+ In /usr/include/sys/malloc.h there is this definition:
+ #define MALLOC_DECLARE(type) \
+ extern struct malloc_type type[1]
+ and loader is unable to find the extern malloc_type because
+ it may be defined in one of kernel object files.
+ It seems that MALLOC_DECLARE and MALLOC_DEFINE cannot be used at
+ the same time for same "type" variable. Also, in Randall's architecture
+ document, where it specifies O/S specific macros and functions, it says
+ that the name in SCTP_MALLOC does not have to be used.
+*/
+#define MALLOC_DECLARE(type) \
+ extern struct malloc_type type[1]
+
+#define FREE(addr, type) free((addr))
+
+/* changed definitions of MALLOC and FREE */
+/* Using memset if flag M_ZERO is specified. Todo: M_WAITOK and M_NOWAIT */
+#define MALLOC(space, cast, size, type, flags) \
+ ((space) = (cast)malloc((u_long)(size))); \
+ do { \
+ if (flags & M_ZERO) { \
+ memset(space,0,size); \
+ } \
+ } while (0);
+
+
+/* End copy: Copied code for __Userspace__ */
+
+#if 0
+#ifdef _KERNEL
+#define MALLOC_DEFINE(type, shortdesc, longdesc) \
+ struct malloc_type type[1] = { \
+ { NULL, 0, 0, 0, 0, 0, M_MAGIC, shortdesc, NULL, NULL, \
+ NULL, 0, NULL, NULL, 0, 0 } \
+ }; \
+ SYSINIT(type##_init, SI_SUB_KMEM, SI_ORDER_SECOND, malloc_init, \
+ type); \
+ SYSUNINIT(type##_uninit, SI_SUB_KMEM, SI_ORDER_ANY, \
+ malloc_uninit, type)
+
+
+#define MALLOC_DECLARE(type) \
+ extern struct malloc_type type[1]
+
+MALLOC_DECLARE(M_CACHE);
+MALLOC_DECLARE(M_DEVBUF);
+MALLOC_DECLARE(M_TEMP);
+
+MALLOC_DECLARE(M_IP6OPT); /* for INET6 */
+MALLOC_DECLARE(M_IP6NDP); /* for INET6 */
+
+/*
+ * Deprecated macro versions of not-quite-malloc() and free().
+ */
+#define MALLOC(space, cast, size, type, flags) \
+ ((space) = (cast)malloc((u_long)(size), (type), (flags)))
+#define FREE(addr, type) free((addr), (type))
+
+/*
+ * XXX this should be declared in <sys/uio.h>, but that tends to fail
+ * because <sys/uio.h> is included in a header before the source file
+ * has a chance to include <sys/malloc.h> to get MALLOC_DECLARE() defined.
+ */
+MALLOC_DECLARE(M_IOV);
+
+extern struct mtx malloc_mtx;
+
+/* XXX struct malloc_type is unused for contig*(). */
+void contigfree(void *addr, unsigned long size, struct malloc_type *type);
+void *contigmalloc(unsigned long size, struct malloc_type *type, int flags,
+ vm_paddr_t low, vm_paddr_t high, unsigned long alignment,
+ unsigned long boundary);
+void free(void *addr, struct malloc_type *type);
+void *malloc(unsigned long size, struct malloc_type *type, int flags);
+void malloc_init(void *);
+int malloc_last_fail(void);
+void malloc_type_allocated(struct malloc_type *type, unsigned long size);
+void malloc_type_freed(struct malloc_type *type, unsigned long size);
+void malloc_uninit(void *);
+void *realloc(void *addr, unsigned long size, struct malloc_type *type,
+ int flags);
+void *reallocf(void *addr, unsigned long size, struct malloc_type *type,
+ int flags);
+
+
+#endif /* _KERNEL */
+#endif
+
+#endif /* !_SYS_MALLOC_H_ */