upload http

JIRA: BOTTLENECK-10

Change-Id: I7598427ff904df438ce77c2819ee48ac75ffa8da
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>

1 files changed, 314 insertions, 0 deletions

diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/include/apr_atomic.h b/rubbos/app/httpd-2.0.64/srclib/apr/include/apr_atomic.h
new file mode 100644
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@@ -0,0 +1,314 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 APR_ATOMIC_H
+#define APR_ATOMIC_H
+
+/**
+ * @file apr_atomic.h
+ * @brief APR Atomic Operations
+ */
+
+#include "apr.h"
+#include "apr_pools.h"
+
+/* Platform includes for atomics */
+#if defined(NETWARE) || defined(__MVS__) /* OS/390 */
+#include <stdlib.h>
+#elif defined(__FreeBSD__)
+#include <machine/atomic.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup apr_atomic Atomic Operations
+ * @ingroup APR 
+ * @{
+ */
+
+/* easiest way to get these documented for the moment */
+#if defined(DOXYGEN)
+/**
+ * structure for holding a atomic value.
+ * this number >only< has a 24 bit size on some platforms
+ */
+typedef apr_atomic_t;
+
+/**
+ * this function is required on some platforms to initialize the
+ * atomic operation's internal structures
+ * @param p pool
+ * @return APR_SUCCESS on successful completion
+ */
+apr_status_t apr_atomic_init(apr_pool_t *p);
+/**
+ * read the value stored in a atomic variable
+ * @param mem the pointer
+ * @warning on certain platforms this number is not stored
+ * directly in the pointer. in others it is 
+ */
+apr_uint32_t apr_atomic_read(volatile apr_atomic_t *mem);
+/**
+ * set the value for atomic.
+ * @param mem the pointer
+ * @param val the value
+ */
+void apr_atomic_set(volatile apr_atomic_t *mem, apr_uint32_t val);
+/**
+ * Add 'val' to the atomic variable
+ * @param mem pointer to the atomic value
+ * @param val the addition
+ */
+void apr_atomic_add(volatile apr_atomic_t *mem, apr_uint32_t val);
+
+/**
+ * increment the atomic variable by 1
+ * @param mem pointer to the atomic value
+ */
+void apr_atomic_inc(volatile apr_atomic_t *mem);
+
+/**
+ * decrement the atomic variable by 1
+ * @param mem pointer to the atomic value
+ * @return zero if the value is zero, otherwise non-zero
+ */
+int apr_atomic_dec(volatile apr_atomic_t *mem);
+
+/**
+ * compare the atomic's value with cmp.
+ * If they are the same swap the value with 'with'
+ * @param mem pointer to the atomic value
+ * @param with what to swap it with
+ * @param cmp the value to compare it to
+ * @return the old value of the atomic
+ * @warning do not mix apr_atomic's with the CAS function.
+ * on some platforms they may be implemented by different mechanisms
+ */
+apr_uint32_t apr_atomic_cas(volatile apr_uint32_t *mem, long with, long cmp);
+
+/**
+ * compare the pointer's value with cmp.
+ * If they are the same swap the value with 'with'
+ * @param mem pointer to the pointer
+ * @param with what to swap it with
+ * @param cmp the value to compare it to
+ * @return the old value of the pointer
+ */
+void *apr_atomic_casptr(volatile void **mem, void *with, const void *cmp);
+#else /* !DOXYGEN */
+
+/* The following definitions provide optimized, OS-specific
+ * implementations of the APR atomic functions on various
+ * platforms.  Any atomic operation that isn't redefined as
+ * a macro here will be declared as a function later, and
+ * apr_atomic.c will provide a mutex-based default implementation.
+ */
+
+#if defined(WIN32)
+
+#define apr_atomic_t LONG
+
+#define apr_atomic_add(mem, val)     InterlockedExchangeAdd(mem,val)
+#define apr_atomic_dec(mem)          InterlockedDecrement(mem)
+#define apr_atomic_inc(mem)          InterlockedIncrement(mem)
+#define apr_atomic_set(mem, val)     InterlockedExchange(mem, val)
+#define apr_atomic_read(mem)         (*mem)
+#define apr_atomic_cas(mem,with,cmp) InterlockedCompareExchange(mem,with,cmp)
+#define apr_atomic_init(pool)        APR_SUCCESS
+#define apr_atomic_casptr(mem,with,cmp) InterlockedCompareExchangePointer(mem,with,cmp)
+
+#elif defined(NETWARE)
+
+#define apr_atomic_t unsigned long
+
+#define apr_atomic_add(mem, val)     atomic_add(mem,val)
+#define apr_atomic_inc(mem)          atomic_inc(mem)
+#define apr_atomic_set(mem, val)     (*mem = val)
+#define apr_atomic_read(mem)         (*mem)
+#define apr_atomic_init(pool)        APR_SUCCESS
+#define apr_atomic_cas(mem,with,cmp) atomic_cmpxchg((unsigned long *)(mem),(unsigned long)(cmp),(unsigned long)(with))
+    
+int apr_atomic_dec(apr_atomic_t *mem);
+void *apr_atomic_casptr(void **mem, void *with, const void *cmp);
+#define APR_OVERRIDE_ATOMIC_DEC 1
+#define APR_OVERRIDE_ATOMIC_CASPTR 1
+
+inline int apr_atomic_dec(apr_atomic_t *mem) 
+{
+    return (atomic_xchgadd(mem, 0xFFFFFFFF) - 1);
+}
+
+inline void *apr_atomic_casptr(void **mem, void *with, const void *cmp)
+{
+    return (void*)atomic_cmpxchg((unsigned long *)mem,(unsigned long)cmp,(unsigned long)with);
+}
+
+#elif defined(__FreeBSD__)
+
+#define apr_atomic_t apr_uint32_t
+#define apr_atomic_add(mem, val)     (atomic_add_int(mem,val),mem)
+#define apr_atomic_dec(mem)          (atomic_subtract_int(mem,1),mem)
+#define apr_atomic_inc(mem)          (atomic_add_int(mem,1),mem)
+#define apr_atomic_set(mem, val)     (atomic_set_int(mem, val),mem)
+#define apr_atomic_read(mem)         (*mem)
+
+#elif (defined(__linux__) || defined(__EMX__)) && defined(__i386__) && !APR_FORCE_ATOMIC_GENERIC
+
+#define apr_atomic_t apr_uint32_t
+#define apr_atomic_cas(mem,with,cmp) \
+({ apr_atomic_t prev; \
+    asm volatile ("lock; cmpxchgl %1, %2"              \
+         : "=a" (prev)               \
+         : "r" (with), "m" (*(mem)), "0"(cmp) \
+         : "memory"); \
+    prev;})
+
+#define apr_atomic_add(mem, val)                                \
+({ register apr_atomic_t last;                                  \
+   do {                                                         \
+       last = *(mem);                                           \
+   } while (apr_atomic_cas((mem), last + (val), last) != last); \
+  })
+
+#define apr_atomic_dec(mem)                                     \
+({ register apr_atomic_t last;                                  \
+   do {                                                         \
+       last = *(mem);                                           \
+   } while (apr_atomic_cas((mem), last - 1, last) != last);     \
+  (--last != 0); })
+
+#define apr_atomic_inc(mem)                                     \
+({ register apr_atomic_t last;                                  \
+   do {                                                         \
+       last = *(mem);                                           \
+   } while (apr_atomic_cas((mem), last + 1, last) != last);     \
+  })
+
+#define apr_atomic_set(mem, val)     (*(mem) = val)
+#define apr_atomic_read(mem)        (*(mem))
+#define apr_atomic_init(pool)        APR_SUCCESS
+
+#elif defined(__MVS__) /* OS/390 */
+
+#define apr_atomic_t cs_t
+
+apr_int32_t apr_atomic_add(volatile apr_atomic_t *mem, apr_int32_t val);
+apr_uint32_t apr_atomic_cas(volatile apr_atomic_t *mem, apr_uint32_t swap, 
+                            apr_uint32_t cmp);
+#define APR_OVERRIDE_ATOMIC_ADD 1
+#define APR_OVERRIDE_ATOMIC_CAS 1
+
+#define apr_atomic_inc(mem)          apr_atomic_add(mem, 1)
+#define apr_atomic_dec(mem)          apr_atomic_add(mem, -1)
+#define apr_atomic_init(pool)        APR_SUCCESS
+
+/* warning: the following two operations, _read and _set, are atomic
+ * if the memory variables are aligned (the usual case).  
+ * 
+ * If you try really hard and manage to mis-align them, they are not 
+ * guaranteed to be atomic on S/390.  But then your program will blow up 
+ * with SIGBUS on a sparc, or with a S0C6 abend if you use the mis-aligned 
+ * variables with other apr_atomic_* operations on OS/390.
+ */
+
+#define apr_atomic_read(p)           (*p)
+#define apr_atomic_set(mem, val)     (*mem = val)
+
+#endif /* end big if-elseif switch for platform-specifics */
+
+
+/* Default implementation of the atomic API
+ * The definitions above may override some or all of the
+ * atomic functions with optimized, platform-specific versions.
+ * Any operation that hasn't been overridden as a macro above
+ * is declared as a function here, unless APR_OVERRIDE_ATOMIC_[OPERATION]
+ * is defined.  (The purpose of the APR_OVERRIDE_ATOMIC_* is
+ * to allow a platform to declare an apr_atomic_*() function
+ * with a different signature than the default.)
+ */
+
+#if !defined(apr_atomic_t)
+#define apr_atomic_t apr_uint32_t
+#endif
+
+#if !defined(apr_atomic_init) && !defined(APR_OVERRIDE_ATOMIC_INIT)
+apr_status_t apr_atomic_init(apr_pool_t *p);
+#endif
+
+#if !defined(apr_atomic_read) && !defined(APR_OVERRIDE_ATOMIC_READ)
+#define apr_atomic_read(p)  *p
+#endif
+
+#if !defined(apr_atomic_set) && !defined(APR_OVERRIDE_ATOMIC_SET)
+void apr_atomic_set(volatile apr_atomic_t *mem, apr_uint32_t val);
+#define APR_ATOMIC_NEED_DEFAULT_INIT 1
+#endif
+
+#if !defined(apr_atomic_add) && !defined(APR_OVERRIDE_ATOMIC_ADD)
+void apr_atomic_add(volatile apr_atomic_t *mem, apr_uint32_t val);
+#define APR_ATOMIC_NEED_DEFAULT_INIT 1
+#endif
+
+#if !defined(apr_atomic_inc) && !defined(APR_OVERRIDE_ATOMIC_INC)
+void apr_atomic_inc(volatile apr_atomic_t *mem);
+#define APR_ATOMIC_NEED_DEFAULT_INIT 1
+#endif
+
+#if !defined(apr_atomic_dec) && !defined(APR_OVERRIDE_ATOMIC_DEC)
+int apr_atomic_dec(volatile apr_atomic_t *mem);
+#define APR_ATOMIC_NEED_DEFAULT_INIT 1
+#endif
+
+#if !defined(apr_atomic_cas) && !defined(APR_OVERRIDE_ATOMIC_CAS)
+apr_uint32_t apr_atomic_cas(volatile apr_uint32_t *mem,long with,long cmp);
+#define APR_ATOMIC_NEED_DEFAULT_INIT 1
+#endif
+
+#if !defined(apr_atomic_casptr) && !defined(APR_OVERRIDE_ATOMIC_CASPTR)
+#if APR_SIZEOF_VOIDP == 4
+#define apr_atomic_casptr(mem, with, cmp) (void *)apr_atomic_cas((apr_uint32_t *)(mem), (long)(with), (long)cmp)
+#else
+void *apr_atomic_casptr(volatile void **mem, void *with, const void *cmp);
+#define APR_ATOMIC_NEED_DEFAULT_INIT 1
+#endif
+#endif
+
+#ifndef APR_ATOMIC_NEED_DEFAULT_INIT
+#define APR_ATOMIC_NEED_DEFAULT_INIT 0
+#endif
+
+/* If we're using the default versions of any of the atomic functions,
+ * we'll need the atomic init to set up mutexes.  If a platform-specific
+ * override above has replaced the atomic_init with a macro, it's an error.
+ */
+#if APR_ATOMIC_NEED_DEFAULT_INIT
+#if defined(apr_atomic_init) || defined(APR_OVERRIDE_ATOMIC_INIT)
+#error Platform has redefined apr_atomic_init, but other default default atomics require a default apr_atomic_init
+#endif
+#endif /* APR_ATOMIC_NEED_DEFAULT_INIT */
+
+#endif /* !DOXYGEN */
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* !APR_ATOMIC_H */