RTorrent release version 0.16.15

Summary

Cleanup of old unused/unneeded code and commands continues, and the deprecated commands should no longer be used.

Before 1.0 is released, these will be removed.

Deprecated and Disabled Commands

# Deprecated commands:

network.open_sockets
network.max_open_sockets
network.max_open_sockets.set
network.http.max_total_connections.set
network.max_open_files.set

Socket categories are now the correct way to adjust or query socket allocation.

Socket Categories & Migration

Global network socket commands (e.g., network.max_open_sockets) are now deprecated. Socket allocation is managed granularly via Socket Categories: generic, http, internal, rpc, and files.

New Commands:

• system.sockets.<category>.size (Current active sockets)
• system.sockets.<category>.max_size (Historical peak sockets)
• system.sockets.<category>.min_alloc / .max_alloc (Set/get socket allocation boundaries)

See https://github.com/rakshasa/rtorrent/wiki/Socket-Manager-and-Resource-Allocation for more

Configuration Example:

# Replace legacy network settings with category boundaries
system.sockets.rpc.max_alloc.set = 32
system.sockets.generic.min_alloc.set = 100

Development Funding

Current development relies on donations, and as such is highly appreciated.

Donations make futher development possible, and as such are highly appreciated:

• Paypal
• Patreon
• SubscribeStar
• Bitcoin: 1MpmXm5AHtdBoDaLZstJw8nupJJaeKu8V8
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What's Changed

Cleanup

• Added "system.sockets..{size,max_size,min_alloc,max_alloc}" commands by @rakshasa
• Updated default socket category allocation values by @rakshasa
• Cleaned up if/branch commands and made branch type checks stricter by @rakshasa
• Renamed scgi socket manager category to rpc by @rakshasa
• Fail on tracker "warning message" that contains certain keywords by @rakshasa
• Added backoff to callback when it is the only events being handled by @rakshasa

Bug Fixes

• Use posix_spawn for execute commands by @rakshasa
• Only enable SIGCHLD on main thread by @rakshasa
• Validate HTTP proxy url when it is set by @rakshasa
• Fixed CurlGet stack bug using a separate flag for cleaned up requests by @rakshasa
• Reset HttpGet objects to ensure there's not unexpected reuse by @rakshasa
• Use a cache for free diskspace when sync'ing all downloads by @rakshasa
• Replaced reinterpret_cast UB in command_base with aligned placement new by @trim21
• Survive controlling-terminal hangup instead of aborting the client by @xirvik
• Close directory watch on quick shutdown (fix SIGABRT at exit) by @xirvik
• Empty Bitfield must have begin() == end() by @xirvik
• Fix use-after-free in UdpRouter::disconnect_failure_unsafe by @jmakovicka
• Add support for RISC-V by @andreas-schwab