Re: From Gnus to mu4e

[Ian Zimmerman]

On 2015-08-28 02:14 +0200, Suvayu Ali wrote:

> No, it's not.  AFAIK on most (all?) *nix filesystems, basic operations
> are atomic.  See for example this (outdated) list:
> 
> http://rcrowley.org/2010/01/06/things-unix-can-do-atomically.html
> 
> E.g., this breaks down when you talk about network mounts like NFS (not
> sure about SSHFS), but it is a valid assumption as long as your storage
> is local.

Assume there's a message ~/Mail/inbox/cur/1440718280.10956_2.ahiker:2,S

MUA 1 wants to set the "tagged" flag, which means renaming

1440718280.10956_2.ahiker:2,S -> 1440718280.10956_2.ahiker:2,FS

MUA 2 wants to set the "replied" flag, which means renaming

1440718280.10956_2.ahiker:2,S -> 1440718280.10956_2.ahiker:2,RS

Only one of them can succeed, depending on the order they try.  And
final state also depends on that order.

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