X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=filesetup.c;h=faeefaf308fa3e32107375fed6ac68faf65fe594;hp=bb25cd5c20bf43ea46646f3b5fb799637e23f5f2;hb=660a1cb5fb9843ec09a04337714e78d63cd557e7;hpb=b5605e9ded4188ed91faae1a43ecd333a9856f62

diff --git a/filesetup.c b/filesetup.c
index bb25cd5c..faeefaf3 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -200,27 +200,48 @@ void generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
 
 int generic_open_file(struct thread_data *td, struct fio_file *f)
 {
+	int is_std = 0;
 	int flags = 0;
 
+	if (!strcmp(f->file_name, "-")) {
+		if (td_rw(td)) {
+			log_err("fio: can't read/write to stdin/out\n");
+			return 1;
+		}
+		is_std = 1;
+
+		/*
+		 * move output logging to stderr, if we are writing to stdout
+		 */
+		if (td_write(td))
+			f_out = stderr;
+	}
+
 	if (td->o.odirect)
 		flags |= OS_O_DIRECT;
 	if (td->o.sync_io)
 		flags |= O_SYNC;
 
-	if (td_write(td) || td_rw(td)) {
+	if (td_write(td)) {
 		flags |= O_RDWR;
 
 		if (f->filetype == FIO_TYPE_FILE)
 			flags |= O_CREAT;
 
-		f->fd = open(f->file_name, flags, 0600);
+		if (is_std)
+			f->fd = dup(STDOUT_FILENO);
+		else
+			f->fd = open(f->file_name, flags, 0600);
 	} else {
 		if (f->filetype == FIO_TYPE_CHAR)
 			flags |= O_RDWR;
 		else
 			flags |= O_RDONLY;
 
-		f->fd = open(f->file_name, flags);
+		if (is_std)
+			f->fd = dup(STDIN_FILENO);
+		else
+			f->fd = open(f->file_name, flags);
 	}
 
 	if (f->fd == -1) {
@@ -478,7 +499,10 @@ static void get_file_type(struct fio_file *f)
 {
 	struct stat sb;
 
-	f->filetype = FIO_TYPE_FILE;
+	if (!strcmp(f->file_name, "-"))
+		f->filetype = FIO_TYPE_PIPE;
+	else
+		f->filetype = FIO_TYPE_FILE;
 
 	if (!lstat(f->file_name, &sb)) {
 		if (S_ISBLK(sb.st_mode))