Add support for file appends

[fio.git] / options.c

diff --git a/options.c b/options.c
index 4ff4c9b42a7bd9af3a85251ac2b5a40f20b185d9..4a54c98c15045864931ea503d3f7920bab4ae431 100644 (file)
--- a/options.c
+++ b/options.c
@@ -1002,6 +1002,15 @@ static int str_buffer_pattern_cb(void *data, const char *input)
        return ret;
 }
 
+static int str_buffer_compress_cb(void *data, unsigned long long *il)
+{
+       struct thread_data *td = data;
+
+       td->flags |= TD_F_COMPRESS;
+       td->o.compress_percentage = *il;
+       return 0;
+}
+
 static int str_verify_pattern_cb(void *data, const char *input)
 {
        struct thread_data *td = data;
@@ -1605,6 +1614,16 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .category = FIO_OPT_C_FILE,
                .group  = FIO_OPT_G_INVALID,
        },
+       {
+               .name   = "file_append",
+               .lname  = "File append",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(file_append),
+               .help   = "IO will start at the end of the file(s)",
+               .def    = "0",
+               .category = FIO_OPT_C_FILE,
+               .group  = FIO_OPT_G_INVALID,
+       },
        {
                .name   = "offset",
                .lname  = "IO offset",
@@ -3118,7 +3137,7 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
                .name   = "buffer_compress_percentage",
                .lname  = "Buffer compression percentage",
                .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(compress_percentage),
+               .cb     = str_buffer_compress_cb,
                .maxval = 100,
                .minval = 0,
                .help   = "How compressible the buffer is (approximately)",