Implement vlc_pipe()

configure.ac

@@ -557,7 +557,7 @@ AC_CHECK_FUNCS(fdatasync,,
 AC_FUNC_STRCOLL
 
 dnl Check for non-standard system calls
-AC_CHECK_FUNCS([accept4 dup3 eventfd vmsplice sched_getaffinity])
+AC_CHECK_FUNCS([accept4 dup3 pipe2 eventfd vmsplice sched_getaffinity])
 
 AH_BOTTOM([#include <vlc_fixups.h>])
 

include/vlc_fs.h

@@ -73,4 +73,5 @@ VLC_EXPORT( int, vlc_lstat, ( const char *filename, struct stat *buf ) );
 VLC_EXPORT( int, vlc_mkstemp, ( char * ) );
 
 VLC_EXPORT( int, vlc_dup, ( int ) );
+VLC_EXPORT( int, vlc_pipe, ( int[2] ) );
 #endif

src/libvlccore.sym

@@ -467,6 +467,7 @@ vlc_strcasestr
 vlc_unlink
 vlc_rename
 vlc_dup
+vlc_pipe
 vlc_accept
 utf8_vfprintf
 var_AddCallback

src/misc/filesystem.c

@@ -334,6 +334,26 @@ int vlc_dup (int oldfd)
     return newfd;
 }
 
+/**
+ * Creates a pipe (see "man pipe" for further reference).
+ */
+int vlc_pipe (int fds[2])
+{
+#ifdef HAVE_PIPE2
+    if (pipe2 (fds, O_CLOEXEC) == 0)
+        return 0;
+    if (errno != ENOSYS)
+        return -1;
+#endif
+
+    if (pipe (fds))
+        return -1;
+
+    fcntl (fds[0], F_SETFD, FD_CLOEXEC);
+    fcntl (fds[1], F_SETFD, FD_CLOEXEC);
+    return 0;
+}
+
 #include <vlc_network.h>
 
 /**

src/win32/filesystem.c

@@ -255,6 +255,11 @@ int vlc_dup (int oldfd)
 #endif
 }
 
+int vlc_pipe (int fds[2])
+{
+    return _pipe (fds, 32768, O_BINARY);
+}
+
 #include <vlc_network.h>
 
 int vlc_socket (int pf, int type, int proto, bool nonblock)