| commit | 0fa5a2ed8d9f6d987f1ea479fe8ea56a26b89303 | [log] [tgz] |
|---|---|---|
| author | Martin Ågren <martin.agren@gmail.com> | Wed May 09 22:55:39 2018 +0200 |
| committer | Junio C Hamano <gitster@pobox.com> | Thu May 10 14:55:40 2018 +0900 |
| tree | 19f1b29e8f3972f281423aa35c9d5711829f1e02 | |
| parent | b227586831ed393e1d60629bfedcef01be4b9c22 [diff] |
lock_file: move static locks into functions Placing `struct lock_file`s on the stack used to be a bad idea, because the temp- and lockfile-machinery would keep a pointer into the struct. But after 076aa2cbd (tempfile: auto-allocate tempfiles on heap, 2017-09-05), we can safely have lockfiles on the stack. (This applies even if a user returns early, leaving a locked lock behind.) Each of these `struct lock_file`s is used from within a single function. Move them into the respective functions to make the scope clearer and drop the staticness. For good measure, I have inspected these sites and come to believe that they always release the lock, with the possible exception of bailing out using `die()` or `exit()` or by returning from a `cmd_foo()`. As pointed out by Jeff King, it would be bad if someone held on to a `struct lock_file *` for some reason. After some grepping, I agree with his findings: no-one appears to be doing that. After this commit, the remaining occurrences of "static struct lock_file" are locks that are used from within different functions. That is, they need to remain static. (Short of more intrusive changes like passing around pointers to non-static locks.) Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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