Changeset 46577995 in mainline for kernel/generic/src/ipc/ops/datawrite.c

Timestamp:

2018-01-04T20:50:52Z (6 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/src/ipc/ops/datawrite.c (modified) (4 diffs)

kernel/generic/src/ipc/ops/datawrite.c

@@ -41 +41 @@
 #include <config.h>
 
-static int request_preprocess(call_t *call, phone_t *phone)
+static errno_t request_preprocess(call_t *call, phone_t *phone)
 {
         uintptr_t src = IPC_GET_ARG1(call->data);
@@ -57 +57 @@
 
         call->buffer = (uint8_t *) malloc(size, 0);
-        int rc = copy_from_uspace(call->buffer, (void *) src, size);
+        errno_t rc = copy_from_uspace(call->buffer, (void *) src, size);
         if (rc != 0) {
                 /*
@@ -69 +69 @@
 }
 
-static int answer_preprocess(call_t *answer, ipc_data_t *olddata)
+static errno_t answer_preprocess(call_t *answer, ipc_data_t *olddata)
 {
         assert(answer->buffer);
@@ -80 +80 @@
                         
                 if (size <= max_size) {
-                        int rc = copy_to_uspace((void *) dst,
+                        errno_t rc = copy_to_uspace((void *) dst,
                             answer->buffer, size);
                         if (rc)