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authorDoug Evans <dje@google.com>2011-05-13 17:31:07 +0000
committerDoug Evans <dje@google.com>2011-05-13 17:31:07 +0000
commit01124a23b32e1d40eefe063aa416438d71ba0240 (patch)
tree5762327207e3693e5a4b2969c841df4165af4568 /gdb/ui-file.h
parent6edba76fe8b37bf2a8f7c84353aa0252724bf293 (diff)
* linux-nat.c (debug_linux_nat_async): Delete.
Replace all references to use debug_linux_nat instead. (show_debug_linux_nat_async): Delete. (sigchld_handler): Call ui_file_write_async_safe instead of fprintf_unfiltered. (_initialize_linux_nat): Remove `set debug lin-lwp-async'. * ui-file.c (struct ui_file): New member to_write_async_safe. (null_file_write_async_safe): New function. (ui_file_write_async_safe): New function. (set_ui_file_write_async_safe): New function. (ui_file_new): Initialize to_write_async_safe. (stdio_file_write_async_safe): New function. (struct stdio_file): New member fd. (stdio_file_new): Initialize to_write_async_safe, fd. (stdio_file_read, stdio_file_isatty): New stdio->fd instead of calling fileno. * ui-file.h (ui_file_write_async_safe_ftype): New typedef. (set_ui_file_write_async_safe): Declare. (ui_file_write_async_safe): Declare. doc/ * gdb.texinfo (Completion): Update example. (Debugging Output): Delete `set/show debug lin-lwp-async'.
Diffstat (limited to 'gdb/ui-file.h')
-rw-r--r--gdb/ui-file.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/gdb/ui-file.h b/gdb/ui-file.h
index 219668a735..4dc8a13e8d 100644
--- 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);