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os: Use Entersyscall when reading directories. 

From-SVN: r188494
This commit is contained in:
Ian Lance Taylor 2012-06-13 04:47:25 +00:00
parent f1dd0d9f3a
commit 57d195e224
1 changed files with 9 additions and 2 deletions
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11
libgo/go/os/dir.go
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@ -42,7 +42,11 @@ func (file *File) readdirnames(n int) (names []string, err error) {
if file.dirinfo == nil {
file.dirinfo = new(dirInfo)
file.dirinfo.buf = make([]byte, elen)
file.dirinfo.dir = libc_opendir(syscall.StringBytePtr(file.name))
p := syscall.StringBytePtr(file.name)
syscall.Entersyscall()
r := libc_opendir(p)
syscall.Exitsyscall()
file.dirinfo.dir = r
}
entry_dirent := unsafe.Pointer(&file.dirinfo.buf[0]).(*syscall.Dirent)
@ -62,7 +66,10 @@ func (file *File) readdirnames(n int) (names []string, err error) {
for n != 0 {
var result *syscall.Dirent
i := libc_readdir_r(dir, entry_dirent, &result)
pr := &result
syscall.Entersyscall()
i := libc_readdir_r(dir, entry_dirent, pr)
syscall.Exitsyscall()
if i != 0 {
return names, NewSyscallError("readdir_r", i)
}