contrib/qemu: Import qemu block source code

This qemu block format source code and its minimal
dependency files will be used in the next patch to implement
a qemu-block format translator.

Change-Id: Ic87638972f7ea9b3df84d7a0539512a250c11c1c
BUG: 986775
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5366
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/contrib/qemu/include/monitor/readline.h b/contrib/qemu/include/monitor/readline.h
new file mode 100644
index 00000000000..fc9806ecf1a
--- /dev/null
+++ b/contrib/qemu/include/monitor/readline.h
@@ -0,0 +1,55 @@
+#ifndef READLINE_H
+#define READLINE_H
+
+#include "qemu-common.h"
+
+#define READLINE_CMD_BUF_SIZE 4095
+#define READLINE_MAX_CMDS 64
+#define READLINE_MAX_COMPLETIONS 256
+
+typedef void ReadLineFunc(Monitor *mon, const char *str, void *opaque);
+typedef void ReadLineCompletionFunc(const char *cmdline);
+
+typedef struct ReadLineState {
+    char cmd_buf[READLINE_CMD_BUF_SIZE + 1];
+    int cmd_buf_index;
+    int cmd_buf_size;
+
+    char last_cmd_buf[READLINE_CMD_BUF_SIZE + 1];
+    int last_cmd_buf_index;
+    int last_cmd_buf_size;
+
+    int esc_state;
+    int esc_param;
+
+    char *history[READLINE_MAX_CMDS];
+    int hist_entry;
+
+    ReadLineCompletionFunc *completion_finder;
+    char *completions[READLINE_MAX_COMPLETIONS];
+    int nb_completions;
+    int completion_index;
+
+    ReadLineFunc *readline_func;
+    void *readline_opaque;
+    int read_password;
+    char prompt[256];
+    Monitor *mon;
+} ReadLineState;
+
+void readline_add_completion(ReadLineState *rs, const char *str);
+void readline_set_completion_index(ReadLineState *rs, int completion_index);
+
+const char *readline_get_history(ReadLineState *rs, unsigned int index);
+
+void readline_handle_byte(ReadLineState *rs, int ch);
+
+void readline_start(ReadLineState *rs, const char *prompt, int read_password,
+                    ReadLineFunc *readline_func, void *opaque);
+void readline_restart(ReadLineState *rs);
+void readline_show_prompt(ReadLineState *rs);
+
+ReadLineState *readline_init(Monitor *mon,
+                             ReadLineCompletionFunc *completion_finder);
+
+#endif /* !READLINE_H */