* THE SOFTWARE.
*/
+/* The following block of code temporarily renames the daemon() function so the
+ compiler does not see the warning associated with it in stdlib.h on OSX */
+#ifdef __APPLE__
+#define daemon qemu_fake_daemon_function
+#include <stdlib.h>
+#undef daemon
+extern int daemon(int, int);
+#endif
+
#include "config-host.h"
#include "sysemu.h"
#include "trace.h"
+#include "qemu_socket.h"
+
-#if !defined(_POSIX_C_SOURCE) || defined(__sun__)
-static void *oom_check(void *ptr)
+
+int qemu_daemon(int nochdir, int noclose)
+{
+ return daemon(nochdir, noclose);
+}
+
+void *qemu_oom_check(void *ptr)
{
if (ptr == NULL) {
fprintf(stderr, "Failed to allocate memory: %s\n", strerror(errno));
}
return ptr;
}
-#endif
void *qemu_memalign(size_t alignment, size_t size)
{
abort();
}
#elif defined(CONFIG_BSD)
- ptr = oom_check(valloc(size));
+ ptr = qemu_oom_check(valloc(size));
#else
- ptr = oom_check(memalign(alignment, size));
+ ptr = qemu_oom_check(memalign(alignment, size));
#endif
trace_qemu_memalign(alignment, size, ptr);
return ptr;
trace_qemu_vfree(ptr);
free(ptr);
}
+
+void socket_set_nonblock(int fd)
+{
+ int f;
+ f = fcntl(fd, F_GETFL);
+ fcntl(fd, F_SETFL, f | O_NONBLOCK);
+}
+
+void qemu_set_cloexec(int fd)
+{
+ int f;
+ f = fcntl(fd, F_GETFD);
+ fcntl(fd, F_SETFD, f | FD_CLOEXEC);
+}
+
+/*
+ * 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;
+}
+
+int qemu_utimensat(int dirfd, const char *path, const struct timespec *times,
+ int flags)
+{
+ struct timeval tv[2], tv_now;
+ struct stat st;
+ int i;
+#ifdef CONFIG_UTIMENSAT
+ int ret;
+
+ ret = utimensat(dirfd, path, times, flags);
+ if (ret != -1 || errno != ENOSYS) {
+ return ret;
+ }
+#endif
+ /* Fallback: use utimes() instead of utimensat() */
+
+ /* happy if special cases */
+ if (times[0].tv_nsec == UTIME_OMIT && times[1].tv_nsec == UTIME_OMIT) {
+ return 0;
+ }
+ if (times[0].tv_nsec == UTIME_NOW && times[1].tv_nsec == UTIME_NOW) {
+ return utimes(path, NULL);
+ }
+
+ /* prepare for hard cases */
+ if (times[0].tv_nsec == UTIME_NOW || times[1].tv_nsec == UTIME_NOW) {
+ gettimeofday(&tv_now, NULL);
+ }
+ if (times[0].tv_nsec == UTIME_OMIT || times[1].tv_nsec == UTIME_OMIT) {
+ stat(path, &st);
+ }
+
+ for (i = 0; i < 2; i++) {
+ if (times[i].tv_nsec == UTIME_NOW) {
+ tv[i].tv_sec = tv_now.tv_sec;
+ tv[i].tv_usec = tv_now.tv_usec;
+ } else if (times[i].tv_nsec == UTIME_OMIT) {
+ tv[i].tv_sec = (i == 0) ? st.st_atime : st.st_mtime;
+ tv[i].tv_usec = 0;
+ } else {
+ tv[i].tv_sec = times[i].tv_sec;
+ tv[i].tv_usec = times[i].tv_nsec / 1000;
+ }
+ }
+
+ return utimes(path, &tv[0]);
+}