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🧾 NAME

📦 Cache::SharedMemoryCache — extends the MemoryCache.

🚀 Quick Reference

Use Case	Command	Description
📦 Create shared memory cache	Cache::SharedMemoryCache->new( \%options )	🔗 Instantiate a new shared memory cache with namespace and expiry
⚙️ Set namespace	'namespace' => 'MyNamespace'	🏷️ Isolate cache entries under a logical namespace
⏱️ Set default expiry	'default_expires_in' => 600	⏳ Set default TTL in seconds (600 = 10 min)
📄 Use FileCache instead	Cache::FileCache	✅ Recommended replacement — better performance, no size limits, cross-platform

📖 DESCRIPTION

🔗 The SharedMemoryCache extends the MemoryCache class and binds the data store to shared memory so that separate processes can use the same cache.

⚠️ Official recommendation is now to use FileCache instead of SharedMemoryCache. The reasons include:

• 📈 Performance — FileCache provides equal or better performance in all tested cases, due to modern OS buffer/cache of file system accesses.
• 📏 Limits — FileCache has no real limits on cached object size or number, whereas SharedMemoryCache has low limits.
• 🌍 Portability — FileCache works on every OS; SharedMemoryCache requires IPC::ShareLite, which is hard to maintain across platforms.

📋 SYNOPSIS

use Cache::SharedMemoryCache;

my %cache_options = ( 'namespace' => 'MyNamespace',
                      'default_expires_in' => 600 );

my $shared_memory_cache =
  new Cache::SharedMemoryCache( \%cache_options ) or
    croak( "Couldn't instantiate SharedMemoryCache" );

🔧 METHODS

👉 See Cache::Cache for the API documentation.

⚙️ OPTIONS

👉 See Cache::Cache for the standard options.

📌 PROPERTIES

👉 See Cache::Cache for the default properties.

🔗 SEE ALSO

• 📄 Cache::Cache
• 📄 Cache::MemoryCache

👤 AUTHOR

🖋️ Original author: DeWitt Clinton <dewitt AT unto.net>

🔄 Last author: $Author: dclinton $

©️ Copyright (C) 2001-2003 DeWitt Clinton

🧾 NAME 🚀 Quick Reference 📖 DESCRIPTION 📋 SYNOPSIS 🔧 METHODS ⚙️ OPTIONS 📌 PROPERTIES 🔗 SEE ALSO 👤 AUTHOR