File Manager

003 File Manager

Current Path: /usr/src/contrib/subversion/subversion/libsvn_subr

usr / src / contrib / subversion / subversion / libsvn_subr /

📁 ..
📄 adler32.c(3.16 KB)
📄 atomic.c(7.23 KB)
📄 auth.c(32.4 KB)
📄 auth.h(6.1 KB)
📄 base64.c(19.18 KB)
📄 bit_array.c(6.26 KB)
📄 cache-inprocess.c(21.2 KB)
📄 cache-membuffer.c(116.43 KB)
📄 cache-memcache.c(17.35 KB)
📄 cache-null.c(4.35 KB)
📄 cache.c(10.22 KB)
📄 cache.h(4.03 KB)
📄 cache_config.c(6.01 KB)
📄 checksum.c(24.17 KB)
📄 checksum.h(2.32 KB)
📄 cmdline.c(58.99 KB)
📄 compat.c(5.28 KB)
📄 compress_lz4.c(4.51 KB)
📄 compress_zlib.c(6.85 KB)
📄 config.c(39.66 KB)
📄 config_auth.c(8.65 KB)
📄 config_file.c(70.25 KB)
📄 config_impl.h(6.15 KB)
📄 config_keys.inc(2.65 KB)
📄 config_win.c(9.61 KB)
📄 crypto.c(25.19 KB)
📄 crypto.h(5.43 KB)
📄 ctype.c(13.81 KB)
📄 date.c(12.86 KB)
📄 debug.c(3.77 KB)
📄 deprecated.c(64.3 KB)
📄 dirent_uri.c(80.17 KB)
📄 dirent_uri.h(1.43 KB)
📄 dso.c(3.74 KB)
📄 encode.c(2.69 KB)
📄 eol.c(2.79 KB)
📄 error.c(24.52 KB)
📄 errorcode.inc(4.27 KB)
📄 fnv1a.c(6.92 KB)
📄 fnv1a.h(3.04 KB)
📄 genctype.py(3.84 KB)
📄 gpg_agent.c(22.29 KB)
📄 hash.c(19.59 KB)
📄 internal_statements.h(1.87 KB)
📄 internal_statements.sql(1.58 KB)
📄 io.c(182.6 KB)
📄 iter.c(3.84 KB)
📄 libsvn_subr.pc.in(515 B)
📄 lock.c(1.69 KB)
📄 log.c(14 KB)
📁 lz4
📄 macos_keychain.c(9.7 KB)
📄 magic.c(5.25 KB)
📄 md5.c(1.8 KB)
📄 mergeinfo.c(89.24 KB)
📄 mutex.c(3.06 KB)
📄 nls.c(3.06 KB)
📄 object_pool.c(9.76 KB)
📄 opt.c(39.34 KB)
📄 opt.h(1.89 KB)
📄 packed_data.c(33.43 KB)
📄 path.c(35.99 KB)
📄 pool.c(4.35 KB)
📄 pools.h(1.45 KB)
📄 prefix_string.c(10.65 KB)
📄 prompt.c(28.82 KB)
📄 properties.c(13.59 KB)
📄 quoprint.c(8.96 KB)
📄 root_pools.c(3.15 KB)
📄 simple_providers.c(25.54 KB)
📄 skel.c(23.04 KB)
📄 sorts.c(15.9 KB)
📄 spillbuf.c(19.78 KB)
📄 sqlite.c(49.68 KB)
📄 sqlite3wrapper.c(3.16 KB)
📄 ssl_client_cert_providers.c(6.66 KB)
📄 ssl_client_cert_pw_providers.c(18.93 KB)
📄 ssl_server_trust_providers.c(7.77 KB)
📄 stream.c(65.69 KB)
📄 string.c(40.2 KB)
📄 subst.c(67.57 KB)
📄 sysinfo.c(43.67 KB)
📄 sysinfo.h(2.58 KB)
📄 target.c(11.58 KB)
📄 temp_serializer.c(14.02 KB)
📄 time.c(9.08 KB)
📄 token.c(2.58 KB)
📄 types.c(9.43 KB)
📄 user.c(2.66 KB)
📄 username_providers.c(9.2 KB)
📄 utf.c(40.38 KB)
📁 utf8proc
📄 utf8proc.c(20.71 KB)
📄 utf_validate.c(13.3 KB)
📄 utf_width.c(10.85 KB)
📄 validate.c(3.35 KB)
📄 version.c(9.89 KB)
📄 win32_crashrpt.c(25.06 KB)
📄 win32_crashrpt.h(1.35 KB)
📄 win32_crashrpt_dll.h(4 KB)
📄 win32_crypto.c(18.12 KB)
📄 win32_xlate.c(7.3 KB)
📄 win32_xlate.h(2.11 KB)
📄 x509.h(3.75 KB)
📄 x509info.c(9.53 KB)
📄 x509parse.c(35.77 KB)
📄 xml.c(20.01 KB)

Editing: cache_config.c

/* svn_cache_config.c : configuration of internal caches
 *
 * ====================================================================
 *    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.
 * ====================================================================
 */

#include <apr_atomic.h>

#include "svn_cache_config.h"
#include "private/svn_atomic.h"
#include "private/svn_cache.h"

#include "svn_pools.h"
#include "svn_sorts.h"

/* The cache settings as a process-wide singleton.
 */
static svn_cache_config_t cache_settings =
  {
    /* default configuration:
     *
     * Please note that the resources listed below will be allocated
     * PER PROCESS. Thus, the defaults chosen here are kept deliberately
     * low to still make a difference yet to ensure that pre-fork servers
     * on machines with small amounts of RAM aren't severely impacted.
     */
    0x1000000,   /* 16 MB for caches.
                  * If you are running a single server process,
                  * you may easily increase that to 50+% of your RAM
                  * using svn_fs_set_cache_config().
                  */
    16,          /* up to 16 files kept open.
                  * Most OS restrict the number of open file handles to
                  * about 1000. To minimize I/O and OS overhead, values
                  * of 500+ can be beneficial (use svn_fs_set_cache_config()
                  * to change the configuration).
                  * When running with a huge in-process cache, this number
                  * has little impact on performance and a more modest
                  * value (< 100) may be more suitable.
                  */
#if APR_HAS_THREADS
    FALSE        /* assume multi-threaded operation.
                  * Because this simply activates proper synchronization
                  * between threads, it is a safe default.
                  */
#else
    TRUE         /* single-threaded is the only supported mode of operation */
#endif
};

/* Get the current FSFS cache configuration. */
const svn_cache_config_t *
svn_cache_config_get(void)
{
  return &cache_settings;
}

/* Initializer function as required by svn_atomic__init_once.  Allocate
 * the process-global (singleton) membuffer cache and return it in the
 * svn_membuffer_t * in *BATON.  UNUSED_POOL is unused and should be NULL.
 */
static svn_error_t *
initialize_cache(void *baton, apr_pool_t *unused_pool)
{
  svn_membuffer_t **cache_p = baton;
  svn_membuffer_t *cache = NULL;

/* Limit the cache size to about half the available address space
   * (typ. 1G under 32 bits).
   */
  apr_uint64_t cache_size = MIN(cache_settings.cache_size,
                                (apr_uint64_t)SVN_MAX_OBJECT_SIZE / 2);

/* Create caches at all? */
  if (cache_size)
    {
      svn_error_t *err;

/* auto-allocate cache */
      apr_allocator_t *allocator = NULL;
      apr_pool_t *pool = NULL;

if (apr_allocator_create(&allocator))
        return SVN_NO_ERROR;

/* Ensure that we free partially allocated data if we run OOM
       * before the cache is complete: If the cache cannot be allocated
       * in its full size, the create() function will clear the pool
       * explicitly. The allocator will make sure that any memory no
       * longer used by the pool will actually be returned to the OS.
       *
       * Please note that this pool and allocator is used *only* to
       * allocate the large membuffer. All later dynamic allocations
       * come from other, temporary pools and allocators.
       */
      apr_allocator_max_free_set(allocator, 1);

/* don't terminate upon OOM but make pool return a NULL pointer
       * instead so we can disable caching gracefully and continue
       * operation without membuffer caches.
       */
      apr_pool_create_ex(&pool, NULL, NULL, allocator);
      if (pool == NULL)
        return SVN_NO_ERROR;
      apr_allocator_owner_set(allocator, pool);

err = svn_cache__membuffer_cache_create(
          &cache,
          (apr_size_t)cache_size,
          (apr_size_t)(cache_size / 5),
          0,
          ! svn_cache_config_get()->single_threaded,
          FALSE,
          pool);

/* Some error occurred. Most likely it's an OOM error but we don't
       * really care. Simply release all cache memory and disable caching
       */
      if (err)
        {
          /* Memory cleanup */
          svn_pool_destroy(pool);

/* Document that we actually don't have a cache. */
          cache_settings.cache_size = 0;

return svn_error_trace(err);
        }

/* done */
      *cache_p = cache;
    }

return SVN_NO_ERROR;
}

/* Access the process-global (singleton) membuffer cache. The first call
 * will automatically allocate the cache using the current cache config.
 * NULL will be returned if the desired cache size is 0 or if the cache
 * could not be created for some reason.
 */
svn_membuffer_t *
svn_cache__get_global_membuffer_cache(void)
{
  static svn_membuffer_t *cache = NULL;
  static svn_atomic_t initialized = 0;

svn_error_t *err
    = svn_atomic__init_once(&initialized, initialize_cache, &cache, NULL);
  if (err)
    {
      /* no caches today ... */
      svn_error_clear(err);
      return NULL;
    }

return cache;
}

void
svn_cache_config_set(const svn_cache_config_t *settings)
{
  cache_settings = *settings;
}

003 File Manager

Editing: cache_config.c

Upload File

Create Folder