Changeset b7fd2a0 in mainline for uspace/lib/c/include/io/output.h

Timestamp:

2018-01-13T03:10:29Z (7 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

a53ed3a

Parents:

36f0738

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.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
<sup>git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`</sup>

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.

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);