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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-14 19:33:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-14 19:33:32 +0000
commit8bb05ac73a5b448b339ce0bc8d396c82c459b47f (patch)
tree1fdda006866bca20d41cb206767ea5241e36852f /tests/helpers/test_mkfds.h
parentAdding debian version 2.39.3-11. (diff)
downloadutil-linux-8bb05ac73a5b448b339ce0bc8d396c82c459b47f.tar.xz
util-linux-8bb05ac73a5b448b339ce0bc8d396c82c459b47f.zip
Merging upstream version 2.40.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/helpers/test_mkfds.h')
-rw-r--r--tests/helpers/test_mkfds.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/tests/helpers/test_mkfds.h b/tests/helpers/test_mkfds.h
new file mode 100644
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--- /dev/null
+++ b/tests/helpers/test_mkfds.h
@@ -0,0 +1,85 @@
+/*
+ * test_mkfds - make various file descriptors
+ *
+ * Written by Masatake YAMATO <yamato@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef TEST_MKFDS_H
+#define TEST_MKFDS_H
+
+#include <asm/unistd.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+enum multiplexing_mode {
+ MX_READ = 1 << 0,
+ MX_WRITE = 1 << 1,
+ MX_EXCEPT = 1 << 2,
+};
+
+struct fdesc {
+ int fd;
+ void (*close)(int, void *);
+ unsigned int mx_modes;
+ void *data;
+};
+
+#define DEFUN_WAIT_EVENT_POLL(NAME,SYSCALL,XDECLS,SETUP_SIG_HANDLER,SYSCALL_INVOCATION) \
+ void wait_event_##NAME(bool add_stdin, struct fdesc *fdescs, size_t n_fdescs) \
+ { \
+ int n = add_stdin? 1: 0; \
+ int n0 = 0; \
+ struct pollfd *pfds = NULL; \
+ \
+ XDECLS \
+ \
+ for (size_t i = 0; i < n_fdescs; i++) \
+ if (fdescs[i].mx_modes) \
+ n++; \
+ \
+ pfds = xcalloc(n, sizeof(pfds[0])); \
+ \
+ for (size_t i = 0; i < n_fdescs; i++) { \
+ if (!fdescs[i].mx_modes) \
+ continue; \
+ pfds[n0].fd = fdescs[i].fd; \
+ if (fdescs[i].mx_modes & MX_READ) \
+ pfds[n0].events |= POLLIN; \
+ if (fdescs[i].mx_modes & MX_WRITE) \
+ pfds[n0].events |= POLLOUT; \
+ if (fdescs[i].mx_modes & MX_EXCEPT) \
+ pfds[n0].events |= POLLHUP; \
+ n0++; \
+ } \
+ \
+ if (add_stdin) { \
+ pfds[n0].fd = 0; \
+ pfds[n0].events |= POLLIN; \
+ } \
+ \
+ SETUP_SIG_HANDLER \
+ \
+ if (SYSCALL_INVOCATION < 0 \
+ && errno != EINTR) \
+ err(EXIT_FAILURE, "failed in " SYSCALL); \
+ free(pfds); \
+ }
+
+#ifdef __NR_ppoll
+void wait_event_ppoll(bool add_stdin, struct fdesc *fdescs, size_t n_fdescs);
+#endif
+
+#endif /* TEST_MKFDS_H */