33 lines
1.5 KiB
Diff
33 lines
1.5 KiB
Diff
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commit 6ce2d43e2533505aa252159bfa8cc799965655bb
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Author: Panu Matilainen <pmatilai@redhat.com>
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Date: Wed Oct 1 09:59:21 2014 +0300
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Dont wait for transaction lock within scriptlets (RhBug:1135596)
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- Packages doing stupid things like rpm -U/-i/-e from their scriptlets
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can and will get hung waiting on the transaction lock, which can
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prompt users to kill the entire transaction, possibly with severe
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consequences. Starting with rpm >= 4.12 we also take the transaction
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lock for importing public keys, which seems to have caught one of
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the bigger fishes in the pond (Google Chrome packages).
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- Only wait when stdin is a tty, this affects more than scriptlets but
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most likely we dont want to wait for locks in those situations either.
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diff --git a/lib/rpmlock.c b/lib/rpmlock.c
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index 7696cbe..9c07654 100644
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--- a/lib/rpmlock.c
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+++ b/lib/rpmlock.c
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@@ -124,10 +124,11 @@ rpmlock rpmlockNew(const char *lock_path, const char *descr)
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int rpmlockAcquire(rpmlock lock)
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{
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int locked = 0; /* assume failure */
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+ int maywait = isatty(STDIN_FILENO); /* dont wait within scriptlets */
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if (lock) {
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locked = rpmlock_acquire(lock, RPMLOCK_WRITE);
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- if (!locked && (lock->openmode & RPMLOCK_WRITE)) {
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+ if (!locked && (lock->openmode & RPMLOCK_WRITE) && maywait) {
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rpmlog(RPMLOG_WARNING, _("waiting for %s lock on %s\n"),
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lock->descr, lock->path);
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locked = rpmlock_acquire(lock, (RPMLOCK_WRITE|RPMLOCK_WAIT));
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