mirrors/Astral
1
0
Fork 0
mirror of https://github.com/Mathewnd/Astral.git synced 2026-11-01 06:58:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

syscalls: read: seek on read

Browse Source
This commit is contained in:
Matheus
2022-08-27 20:29:25 -03:00
parent 6d4439ee2f
commit 06e91be62e
1 changed files with 7 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/sys/syscalls/read.c
+7 -4
View File
@@ -42,18 +42,21 @@ syscallret syscall_read(int ifd, void* buff, size_t count){
int err; int err;
size_t readc = vfs_read(&err, fd->node, kbuff, count, fd->offset); size_t readc = vfs_read(&err, fd->node, kbuff, count, fd->offset);
spinlock_release(&fd->lock);
if(err){
if(err){
spinlock_release(&fd->lock);
free(kbuff); free(kbuff);
retv.errno = err; retv.errno = err;
return retv; return retv;
} }
memcpy(buff, kbuff, count); // XXX user version for safety fd->offset += readc;
spinlock_release(&fd->lock);
memcpy(buff, kbuff, count); // XXX user version for safety
retv.errno = 0; retv.errno = 0;
retv.ret = readc; retv.ret = readc;