Changeset 46577995 in mainline for uspace/lib/c/generic/perm.c

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/generic/perm.c (modified) (2 diffs)

uspace/lib/c/generic/perm.c

@@ -48 +48 @@
  *
  */
-int perm_grant(task_id_t id, unsigned int perms)
+errno_t perm_grant(task_id_t id, unsigned int perms)
 {
 #ifdef __32_BITS__
         sysarg64_t arg = (sysarg64_t) id;
-        return (int) __SYSCALL2(SYS_PERM_GRANT, (sysarg_t) &arg, (sysarg_t) perms);
+        return (errno_t) __SYSCALL2(SYS_PERM_GRANT, (sysarg_t) &arg, (sysarg_t) perms);
 #endif
         
 #ifdef __64_BITS__
-        return (int) __SYSCALL2(SYS_PERM_GRANT, (sysarg_t) id, (sysarg_t) perms);
+        return (errno_t) __SYSCALL2(SYS_PERM_GRANT, (sysarg_t) id, (sysarg_t) perms);
 #endif
 }
@@ -68 +68 @@
  *
  */
-int perm_revoke(task_id_t id, unsigned int perms)
+errno_t perm_revoke(task_id_t id, unsigned int perms)
 {
 #ifdef __32_BITS__
         sysarg64_t arg = (sysarg64_t) id;
-        return (int) __SYSCALL2(SYS_PERM_REVOKE, (sysarg_t) &arg, (sysarg_t) perms);
+        return (errno_t) __SYSCALL2(SYS_PERM_REVOKE, (sysarg_t) &arg, (sysarg_t) perms);
 #endif
         
 #ifdef __64_BITS__
-        return (int) __SYSCALL2(SYS_PERM_REVOKE, (sysarg_t) id, (sysarg_t) perms);
+        return (errno_t) __SYSCALL2(SYS_PERM_REVOKE, (sysarg_t) id, (sysarg_t) perms);
 #endif
 }