diff options
| author | Peter S. Mazinger <ps.m@gmx.net> | 2011-04-21 21:55:48 +0200 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2012-06-15 14:00:40 +0200 |
| commit | 6c7c4fb8e1ff2d7d170af3f50acd4cdc30f608f6 (patch) | |
| tree | df06b67a79e74e9c1b2612edc859bf25a61676e9 /libc/sysdeps/linux/common | |
| parent | e4b5997fc1cea7eeaad155aad02b8b1997143874 (diff) | |
select: adapt cancelation to use cancel.h
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/common')
| -rw-r--r-- | libc/sysdeps/linux/common/select.c | 75 |
1 files changed, 21 insertions, 54 deletions
diff --git a/libc/sysdeps/linux/common/select.c b/libc/sysdeps/linux/common/select.c index 029fb08a0..c13bd0418 100644 --- a/libc/sysdeps/linux/common/select.c +++ b/libc/sysdeps/linux/common/select.c @@ -9,27 +9,24 @@ #include <sys/syscall.h> #include <sys/select.h> -#include <stdint.h> +#include <cancel.h> -#ifdef __UCLIBC_HAS_THREADS_NATIVE__ -#include <sysdep-cancel.h> -#else -#define SINGLE_THREAD_P 1 +#ifdef __NR__newselect +# undef __NR_select +# define __NR_select __NR__newselect #endif -#define USEC_PER_SEC 1000000L - -extern __typeof(select) __libc_select; - -#if !defined(__NR__newselect) && !defined(__NR_select) && defined __USE_XOPEN2K -# define __NR___libc_pselect6 __NR_pselect6 -static _syscall6(int, __libc_pselect6, int, n, fd_set *, readfds, fd_set *, writefds, - fd_set *, exceptfds, const struct timespec *, timeout, - const sigset_t *, sigmask) +#if !defined __NR_select && defined __NR_pselect6 +# include <stdint.h> +# define USEC_PER_SEC 1000000L +#endif -int __libc_select(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, - struct timeval *timeout) +int __NC(select)(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, + struct timeval *timeout) { +#ifdef __NR_select + return INLINE_SYSCALL(select, 5, n, readfds, writefds, exceptfds, timeout); +#elif defined __NR_pselect6 struct timespec _ts, *ts = 0; if (timeout) { uint32_t usec; @@ -51,44 +48,14 @@ int __libc_select(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, ts = &_ts; } - - if (SINGLE_THREAD_P) - return __libc_pselect6(n, readfds, writefds, exceptfds, ts, 0); -#ifdef __UCLIBC_HAS_THREADS_NATIVE__ - int oldtype = LIBC_CANCEL_ASYNC (); - int result = __libc_pselect6(n, readfds, writefds, exceptfds, ts, 0); - LIBC_CANCEL_RESET (oldtype); - return result; -#endif - -} - -#else - -#ifdef __NR__newselect -# define __NR___syscall_select __NR__newselect -#else -# define __NR___syscall_select __NR_select -#endif - -static _syscall5(int, __syscall_select, int, n, fd_set *, readfds, - fd_set *, writefds, fd_set *, exceptfds, struct timeval *, timeout); - -int __libc_select(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, - struct timeval *timeout) -{ - if (SINGLE_THREAD_P) - return __syscall_select(n, readfds, writefds, exceptfds, timeout); - -#ifdef __UCLIBC_HAS_THREADS_NATIVE__ - int oldtype = LIBC_CANCEL_ASYNC (); - int result = __syscall_select(n, readfds, writefds, exceptfds, timeout); - LIBC_CANCEL_RESET (oldtype); - return result; + return INLINE_SYSCALL(pselect6, 6, n, readfds, writefds, exceptfds, ts, 0); #endif } - +/* we should guard it, but we need it in other files, so let it fail + * if we miss any of the syscalls */ +#if 1 /*defined __NR_select || defined __NR_pselect6*/ +CANCELLABLE_SYSCALL(int, select, (int n, fd_set *readfds, fd_set *writefds, + fd_set *exceptfds, struct timeval *timeout), + (n, readfds, writefds, exceptfds, timeout)) +lt_libc_hidden(select) #endif - -weak_alias(__libc_select,select) -libc_hidden_weak(select) |