Changeset b7fd2a0 in mainline for uspace/lib/c/generic/cap.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/c/generic/cap.c (modified) (6 diffs)

uspace/lib/c/generic/cap.c

@@ -81 +81 @@
  * and @c cv_max gives the maximum value.
  */
-int cap_to_blocks(cap_spec_t *cap, cap_vsel_t cvsel, size_t block_size,
+errno_t cap_to_blocks(cap_spec_t *cap, cap_vsel_t cvsel, size_t block_size,
     uint64_t *rblocks)
 {
@@ -90 +90 @@
         uint64_t blocks;
         uint64_t rem;
-        int rc;
+        errno_t rc;
 
         exp = cap->cunit * 3 - cap->dp;
@@ -144 +144 @@
         unsigned sdig;
         unsigned rdig;
-        int rc;
+        errno_t rc;
 
         /* Change units so that we have at most @c scap_max_idig integer digits */
@@ -175 +175 @@
 }
 
-int cap_format(cap_spec_t *cap, char **rstr)
-{
-        int rc;
+errno_t cap_format(cap_spec_t *cap, char **rstr)
+{
+        errno_t rc;
         int ret;
         const char *sunit;
@@ -208 +208 @@
 }
 
-static int cap_digit_val(char c, int *val)
+static errno_t cap_digit_val(char c, int *val)
 {
         switch (c) {
@@ -228 +228 @@
 }
 
-int cap_parse(const char *str, cap_spec_t *cap)
+errno_t cap_parse(const char *str, cap_spec_t *cap)
 {
         const char *eptr;