/* vi: set sw=4 ts=4: */ /* * writev() for uClibc * * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <sys/syscall.h> #include <sys/uio.h> #ifdef __UCLIBC_HAS_THREADS_NATIVE__ #include <errno.h> #include <sysdep-cancel.h> /* We should deal with kernel which have a smaller UIO_FASTIOV as well as a very big count. */ static ssize_t __writev (int fd, const struct iovec *vector, int count) { ssize_t bytes_written; bytes_written = INLINE_SYSCALL (writev, 3, fd, vector, count); if (bytes_written >= 0 || errno != EINVAL || count <= UIO_FASTIOV) return bytes_written; /* glibc tries again, but we do not. */ /* return __atomic_writev_replacement (fd, vector, count); */ return -1; } ssize_t writev (int fd, const struct iovec *vector, int count) { if (SINGLE_THREAD_P) return __writev (fd, vector, count); int oldtype = LIBC_CANCEL_ASYNC (); ssize_t result = __writev (fd, vector, count); LIBC_CANCEL_RESET (oldtype); return result; } #else _syscall3(ssize_t, writev, int, filedes, const struct iovec *, vector, int, count) #endif