From a5d2b5ed451ca8414bc3a82288fbbf63fcc97070 Mon Sep 17 00:00:00 2001 From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com> Date: Thu, 3 Nov 2022 08:16:03 +0100 Subject: libdecor: update from source git repo (commit e87dcfda) This brings the GTK plugin inside the master libdecor git repo. --- libdecor/src/os-compatibility.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) (limited to 'libdecor/src/os-compatibility.c') diff --git a/libdecor/src/os-compatibility.c b/libdecor/src/os-compatibility.c index 50beb79f8..8287da0e6 100644 --- a/libdecor/src/os-compatibility.c +++ b/libdecor/src/os-compatibility.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -86,11 +87,27 @@ static int os_resize_anonymous_file(int fd, off_t size) { #ifdef HAVE_POSIX_FALLOCATE + sigset_t mask; + sigset_t old_mask; + + /* posix_fallocate() might be interrupted, so we need to check + * for EINTR and retry in that case. + * However, in the presence of an alarm, the interrupt may trigger + * repeatedly and prevent a large posix_fallocate() to ever complete + * successfully, so we need to first block SIGALRM to prevent + * this. + */ + sigemptyset(&mask); + sigaddset(&mask, SIGALRM); + sigprocmask(SIG_BLOCK, &mask, &old_mask); /* - * Filesystems that do support fallocate will return EINVAL or + * Filesystems that do not support fallocate will return EINVAL or * EOPNOTSUPP. In this case we need to fall back to ftruncate */ - errno = posix_fallocate(fd, 0, size); + do { + errno = posix_fallocate(fd, 0, size); + } while (errno == EINTR); + sigprocmask(SIG_SETMASK, &old_mask, NULL); if (errno == 0) return 0; else if (errno != EINVAL && errno != EOPNOTSUPP) -- cgit v1.2.3