32 lines
1.2 KiB
Ruby
32 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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if RUBY_PLATFORM.include?('darwin')
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require 'fiddle'
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require 'ffi'
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module CFTimeZone
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extend FFI::Library
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ffi_lib '/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation'
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attach_function :CFTimeZoneCopyDefault, [], :pointer
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attach_function :CFTimeZoneGetName, [:pointer], :pointer
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attach_function :CFRelease, [:pointer], :void
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end
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# Dynamically load Foundation.framework, ~implicitly~ initialising
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# the Objective-C runtime before any forking happens in webserver
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#
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# From https://bugs.ruby-lang.org/issues/14009
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Fiddle.dlopen '/System/Library/Frameworks/Foundation.framework/Foundation'
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# grpc uses abseil-cpp to retrieve the local time zone via macOS APIs:
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# https://github.com/abseil/abseil-cpp/blob/20230125.rc3/absl/time/internal/cctz/src/time_zone_lookup.cc#L139
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#
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# To ensure these APIs are not called in a forked process (https://github.com/grpc/grpc/issues/26257),
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# load the required framework, retrieve the default time zone, and then release the resource.
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default_time_zone = CFTimeZone.CFTimeZoneCopyDefault
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time_zone_name = CFTimeZone.CFTimeZoneGetName(default_time_zone)
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CFTimeZone.CFRelease(time_zone_name)
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CFTimeZone.CFRelease(default_time_zone)
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end
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