2011-06-06 Pedro Alves <pedro@codesourcery.com>

[deliverable/binutils-gdb.git] / gdb / ui-file.h

diff --git a/gdb/ui-file.h b/gdb/ui-file.h
index 01cee1f1b85710ad886683e1d9bb17317d906dab..4dc8a13e8d2c8b83d15e53f5b9d9ce17e5b63967 100644 (file)
--- a/gdb/ui-file.h
+++ b/gdb/ui-file.h
@@ -45,6 +45,17 @@ typedef void (ui_file_fputs_ftype) (const char *, struct ui_file *stream);
 extern void set_ui_file_fputs (struct ui_file *stream,
                               ui_file_fputs_ftype *fputs);
 
+/* This version of "write" is safe for use in signal handlers.
+   It's not guaranteed that all existing output will have been
+   flushed first.
+   Implementations are also free to ignore some or all of the request.
+   fputs_async is not provided as the async versions are rarely used,
+   no point in having both for a rarely used interface.  */
+typedef void (ui_file_write_async_safe_ftype)
+  (struct ui_file *stream, const char *buf, long length_buf);
+extern void set_ui_file_write_async_safe
+  (struct ui_file *stream, ui_file_write_async_safe_ftype *write_async_safe);
+
 typedef long (ui_file_read_ftype) (struct ui_file *stream,
                                   char *buf, long length_buf);
 extern void set_ui_file_read (struct ui_file *stream,
@@ -83,6 +94,9 @@ extern int ui_file_isatty (struct ui_file *);
 extern void ui_file_write (struct ui_file *file, const char *buf,
                           long length_buf);
 
+extern void ui_file_write_async_safe (struct ui_file *file, const char *buf,
+                                     long length_buf);
+
 /* NOTE: copies left to right.  */
 extern void ui_file_put (struct ui_file *src,
                         ui_file_put_method_ftype *write, void *dest);
@@ -106,7 +120,7 @@ extern struct ui_file *mem_fileopen (void);
 
 
 
-/* Open/create a an STDIO based UI_FILE using the already open FILE.  */
+/* Open/create a STDIO based UI_FILE using the already open FILE.  */
 extern struct ui_file *stdio_fileopen (FILE *file);
 
 /* Open NAME returning an STDIO based UI_FILE.  */