Changeset b7fd2a0 in mainline for uspace/lib/c/include/task.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/task.h (modified) (1 diff)

uspace/lib/c/include/task.h

@@ -51 +51 @@
 
 extern task_id_t task_get_id(void);
-extern int task_set_name(const char *);
-extern int task_kill(task_id_t);
+extern errno_t task_set_name(const char *);
+extern errno_t task_kill(task_id_t);
 
-extern int task_spawnv(task_id_t *, task_wait_t *, const char *path,
+extern errno_t task_spawnv(task_id_t *, task_wait_t *, const char *path,
     const char *const []);
-extern int task_spawnvf(task_id_t *, task_wait_t *, const char *path,
+extern errno_t task_spawnvf(task_id_t *, task_wait_t *, const char *path,
     const char *const [], int, int, int);
-extern int task_spawn(task_id_t *, task_wait_t *, const char *path, int,
+extern errno_t task_spawn(task_id_t *, task_wait_t *, const char *path, int,
     va_list ap);
-extern int task_spawnl(task_id_t *, task_wait_t *, const char *path, ...)
+extern errno_t task_spawnl(task_id_t *, task_wait_t *, const char *path, ...)
     __attribute__((sentinel));
 
-extern int task_setup_wait(task_id_t, task_wait_t *);
+extern errno_t task_setup_wait(task_id_t, task_wait_t *);
 extern void task_cancel_wait(task_wait_t *);
-extern int task_wait(task_wait_t *, task_exit_t *, int *);
-extern int task_wait_task_id(task_id_t, task_exit_t *, int *);
-extern int task_retval(int);
+extern errno_t task_wait(task_wait_t *, task_exit_t *, int *);
+extern errno_t task_wait_task_id(task_id_t, task_exit_t *, int *);
+extern errno_t task_retval(int);
 
 #endif