[PULL 07/23] Replace qemu_pipe() with g_unix_open_pipe()

[marcandre . lureau]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

GLib g_unix_open_pipe() is essentially like qemu_pipe(), available since
2.30.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/qemu/osdep.h        |  4 ----
 qemu-nbd.c                  |  5 +++--
 util/event_notifier-posix.c |  2 +-
 util/oslib-posix.c          | 22 ----------------------
 4 files changed, 4 insertions(+), 29 deletions(-)

diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index 52d81c027ba0..1c1e7eca9898 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -547,10 +547,6 @@ static inline void qemu_timersub(const struct timeval 
*val1,
 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
     G_GNUC_WARN_UNUSED_RESULT;
 
-#ifndef _WIN32
-int qemu_pipe(int pipefd[2]);
-#endif
-
 void qemu_set_cloexec(int fd);
 
 /* Return a dynamically allocated directory path that is appropriate for 
storing
diff --git a/qemu-nbd.c b/qemu-nbd.c
index db63980df1e4..2382b5042adf 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -909,13 +909,14 @@ int main(int argc, char **argv)
 
     if ((device && !verbose) || fork_process) {
 #ifndef WIN32
+        g_autoptr(GError) err = NULL;
         int stderr_fd[2];
         pid_t pid;
         int ret;
 
-        if (qemu_pipe(stderr_fd) < 0) {
+        if (!g_unix_open_pipe(stderr_fd, FD_CLOEXEC, &err)) {
             error_report("Error setting up communication pipe: %s",
-                         strerror(errno));
+                         err->message);
             exit(EXIT_FAILURE);
         }
 
diff --git a/util/event_notifier-posix.c b/util/event_notifier-posix.c
index 2aa14eabb38e..76420c5b560c 100644
--- a/util/event_notifier-posix.c
+++ b/util/event_notifier-posix.c
@@ -49,7 +49,7 @@ int event_notifier_init(EventNotifier *e, int active)
         if (errno != ENOSYS) {
             return -errno;
         }
-        if (qemu_pipe(fds) < 0) {
+        if (!g_unix_open_pipe(fds, FD_CLOEXEC, NULL)) {
             return -errno;
         }
         if (!g_unix_set_fd_nonblocking(fds[0], true, NULL)) {
diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index 289efca3fae1..2a6f6248ad03 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -274,28 +274,6 @@ void qemu_set_cloexec(int fd)
     assert(f != -1);
 }
 
-/*
- * Creates a pipe with FD_CLOEXEC set on both file descriptors
- */
-int qemu_pipe(int pipefd[2])
-{
-    int ret;
-
-#ifdef CONFIG_PIPE2
-    ret = pipe2(pipefd, O_CLOEXEC);
-    if (ret != -1 || errno != ENOSYS) {
-        return ret;
-    }
-#endif
-    ret = pipe(pipefd);
-    if (ret == 0) {
-        qemu_set_cloexec(pipefd[0]);
-        qemu_set_cloexec(pipefd[1]);
-    }
-
-    return ret;
-}
-
 char *
 qemu_get_local_state_dir(void)
 {
-- 
2.36.0.44.g0f828332d5ac