diff options
| author | Austin Foxley <austinf@cetoncorp.com> | 2009-10-17 14:32:36 -0700 |
|---|---|---|
| committer | Austin Foxley <austinf@cetoncorp.com> | 2009-10-17 14:32:36 -0700 |
| commit | 57e8823548ad6e65d33b2153edeb18fb0edc20e6 (patch) | |
| tree | 8cfc6fea89ec4e90c94b5764233ee2b2ed9cc54d /libc/termios/tcdrain.c | |
| parent | 9a737ab7a40984cfdfffd014562a220a3736a10f (diff) | |
cancellation support for a large amount of the required syscalls
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libc/termios/tcdrain.c')
| -rw-r--r-- | libc/termios/tcdrain.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/libc/termios/tcdrain.c b/libc/termios/tcdrain.c index ad94803ff..e0f423138 100644 --- a/libc/termios/tcdrain.c +++ b/libc/termios/tcdrain.c @@ -19,14 +19,31 @@ #include <errno.h> #include <termios.h> #include <sys/ioctl.h> - -#ifdef __LINUXTHREADS_OLD__ -extern __typeof(tcdrain) weak_function tcdrain; -strong_alias(tcdrain,__libc_tcdrain) +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ +#include <sysdep-cancel.h> #endif +libc_hidden_proto(ioctl) + +extern __typeof(tcdrain) __libc_tcdrain; /* Wait for pending output to be written on FD. */ -int tcdrain(int fd) +int __libc_tcdrain (int fd) { +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ + if (SINGLE_THREAD_P) + /* With an argument of 1, TCSBRK for output to be drain. */ + return INLINE_SYSCALL (ioctl, 3, fd, TCSBRK, 1); + + int oldtype = LIBC_CANCEL_ASYNC (); + + /* With an argument of 1, TCSBRK for output to be drain. */ + int result = INLINE_SYSCALL (ioctl, 3, fd, TCSBRK, 1); + + LIBC_CANCEL_RESET (oldtype); + + return result; +#else return ioctl(fd, TCSBRK, 1); +#endif } +weak_alias(__libc_tcdrain,tcdrain) |