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| author | Chantry Xavier <shiningxc@gmail.com> | 2007-09-08 00:36:38 +0200 |
|---|---|---|
| committer | Dan McGee <dan@archlinux.org> | 2007-09-17 03:17:44 +0200 |
| commit | b0aa51059233849b0a7ef8d6a851750776ce6645 (patch) | |
| tree | 29341593cb82011f65e901aa63bc76f7449d85a2 /src | |
| parent | 046c8a6819a0533fb10434f30100f80bb960fe46 (diff) | |
| download | pacman-b0aa51059233849b0a7ef8d6a851750776ce6645.tar.gz pacman-b0aa51059233849b0a7ef8d6a851750776ce6645.tar.xz | |
trans.c : reworking of transaction interruptions
My two previous hacks related to this part
(8038190c7c4786e1c49494eea1b40cdddcbd5136 and
b15a5194d1a8485a2769560e49e6ff03e1862533) were caused by the lack of
understanding of a feature introduced a while ago:
Better control over CTRL-C interruptions -- do not leave the DB in an
inconsistent state (54008798efcc9646f622f6b052ecd83281d57cda).
Now I have been looking at this commit, and the added feature is indeed
interesting. The main problem I had with it is that it does a rather
unusual use of alpm_trans_release, which caused a few problems that I tried
to fix in a weird way. I think these problems were caused by the fact that
there weren't any difference between "interrupt transaction" and "release a
transaction which failed" actions from the alpm_trans_release POV. So I
decided to add a new function instead, alpm_trans_interrupt, which is
called on Ctrl+C, and which only sets trans->state to STATE_INTERRUPTED so
that remove_commit and add_commit can exit cleanly at a safe moment. This
allowed me to revert my two previous hacks as well.
Also ensure we handle SIGINT correctly in all cases- if a transaction is
not ongoing, then we can free the transaction and exit quickly.
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/pacman/pacman.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/pacman/pacman.c b/src/pacman/pacman.c index 2b748a1c..aa128261 100644 --- a/src/pacman/pacman.c +++ b/src/pacman/pacman.c @@ -207,9 +207,14 @@ static void cleanup(int signum) pm_fprintf(stderr, PM_LOG_ERROR, "Internal pacman error: Segmentation fault.\n" "Please submit a full bug report with --debug if appropriate.\n"); exit(signum); - } else if((signum == SIGINT) && (alpm_trans_release() == -1) - && (pm_errno == PM_ERR_TRANS_COMMITING)) { - return; + } else if((signum == SIGINT)) { + if(alpm_trans_interrupt() == 0) { + /* a transaction is being interrupted, don't exit pacman yet. */ + return; + } else { + /* no commiting transaction, we can release it now and then exit pacman */ + alpm_trans_release(); + } } /* free alpm library resources */ |