Changeset 46577995 in mainline for uspace/lib/c/include/io/output.h

Timestamp:

2018-01-04T20:50:52Z (8 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Children:

e211ea04

Parents:

facacc71

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2018-01-04 20:47:53)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2018-01-04 20:50:52)

Message:

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

After this commit, HelenOS is free of code that mixes error codes with non-error
values on the assumption that error codes are negative.

File:

• uspace/lib/c/include/io/output.h (modified) (1 diff)

uspace/lib/c/include/io/output.h

@@ -40 +40 @@
 #include <io/console.h>
 
-extern int output_yield(async_sess_t *);
-extern int output_claim(async_sess_t *);
-extern int output_get_dimensions(async_sess_t *, sysarg_t *, sysarg_t *);
-extern int output_get_caps(async_sess_t *, console_caps_t *);
+extern errno_t output_yield(async_sess_t *);
+extern errno_t output_claim(async_sess_t *);
+extern errno_t output_get_dimensions(async_sess_t *, sysarg_t *, sysarg_t *);
+extern errno_t output_get_caps(async_sess_t *, console_caps_t *);
 
 extern frontbuf_handle_t output_frontbuf_create(async_sess_t *, chargrid_t *);
 
-extern int output_cursor_update(async_sess_t *, frontbuf_handle_t);
-extern int output_set_style(async_sess_t *, console_style_t);
+extern errno_t output_cursor_update(async_sess_t *, frontbuf_handle_t);
+extern errno_t output_set_style(async_sess_t *, console_style_t);
 
-extern int output_update(async_sess_t *, frontbuf_handle_t);
-extern int output_damage(async_sess_t *, frontbuf_handle_t,
+extern errno_t output_update(async_sess_t *, frontbuf_handle_t);
+extern errno_t output_damage(async_sess_t *, frontbuf_handle_t,
     sysarg_t, sysarg_t, sysarg_t, sysarg_t);