Changeset 46577995 in mainline for kernel/generic/include/syscall/copy.h

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:

• kernel/generic/include/syscall/copy.h (modified) (1 diff)

kernel/generic/include/syscall/copy.h

@@ -44 +44 @@
 extern char memcpy_to_uspace_failover_address;
 
-extern int copy_from_uspace(void *dst, const void *uspace_src, size_t size);
-extern int copy_to_uspace(void *dst_uspace, const void *src, size_t size);
+extern errno_t copy_from_uspace(void *dst, const void *uspace_src, size_t size);
+extern errno_t copy_to_uspace(void *dst_uspace, const void *src, size_t size);
 
 /*
  * This interface must be implemented by each architecture.
  */
-extern int memcpy_from_uspace(void *dst, const void *uspace_src, size_t size);
-extern int memcpy_to_uspace(void *uspace_dst, const void *src, size_t size);
+extern errno_t memcpy_from_uspace(void *dst, const void *uspace_src, size_t size);
+extern errno_t memcpy_to_uspace(void *uspace_dst, const void *src, size_t size);
 
 #endif