Changeset b7fd2a0 in mainline for uspace/lib/draw/font/embedded.c

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/draw/font/embedded.c (modified) (4 diffs)

uspace/lib/draw/font/embedded.c

@@ -44 +44 @@
 #include "bitmap_backend.h"
 
-static int fde_resolve_glyph(void *unused, const wchar_t chr,
+static errno_t fde_resolve_glyph(void *unused, const wchar_t chr,
     glyph_id_t *glyph_id)
 {
@@ -56 +56 @@
 }
 
-static int fde_load_glyph_surface(void *unused, glyph_id_t glyph_id,
+static errno_t fde_load_glyph_surface(void *unused, glyph_id_t glyph_id,
     surface_t **out_surface)
 {
@@ -75 +75 @@
 }
 
-static int fde_load_glyph_metrics(void *unused, glyph_id_t glyph_id,
+static errno_t fde_load_glyph_metrics(void *unused, glyph_id_t glyph_id,
     glyph_metrics_t *gm)
 {
@@ -106 +106 @@
 };
 
-int embedded_font_create(font_t **font, uint16_t points)
+errno_t embedded_font_create(font_t **font, uint16_t points)
 {
         return bitmap_font_create(&fd_embedded, NULL, FONT_GLYPHS, font_metrics,