Changeset 9246016 in mainline for uspace/lib/c/generic/io/klog.c

Timestamp:

2017-12-08T21:03:35Z (6 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

6ad454f

Parents:

f43742e2

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2017-12-08 05:21:59)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2017-12-08 21:03:35)

Message:

In SYS_KLOG, pass number of bytes read separately from error code.

File:

• uspace/lib/c/generic/io/klog.c (modified) (1 diff)

uspace/lib/c/generic/io/klog.c

@@ -42 +42 @@
 #include <abi/log.h>
 
-size_t klog_write(log_level_t lvl, const void *buf, size_t size)
+int klog_write(log_level_t lvl, const void *buf, size_t size)
 {
-        ssize_t ret = (ssize_t) __SYSCALL4(SYS_KLOG, KLOG_WRITE, (sysarg_t) buf,
+        return (int) __SYSCALL4(SYS_KLOG, KLOG_WRITE, (sysarg_t) buf,
             size, lvl);
-        
-        if (ret >= 0)
-                return (size_t) ret;
-        
-        return 0;
 }
 
-int klog_read(void *data, size_t size)
+int klog_read(void *data, size_t size, size_t *nread)
 {
-        return (int) __SYSCALL4(SYS_KLOG, KLOG_READ, (uintptr_t) data, size, 0);
+        return (int) __SYSCALL5(SYS_KLOG, KLOG_READ, (uintptr_t) data,
+            size, 0, (sysarg_t) nread);
 }