src/system/libroot/posix/sys/select.c

   1 /*
   2  * Copyright 2002-2007, Axel Dörfler, axeld@pinc-software.de.
   3  * All rights reserved.
   4  * Distributed under the terms of the MIT License.
   5  */
   6
   7
   8 #include <sys/select.h>
   9
  10 #include <errno.h>
  11 #include <pthread.h>
  12
  13 #include <syscall_utils.h>
  14
  15 #include <errno_private.h>
  16 #include <symbol_versioning.h>
  17 #include <syscalls.h>
  18
  19 #include <signal_private.h>
  20
  21
  22 int __pselect_beos(int numBits, struct fd_set *readBits,
  23         struct fd_set *writeBits, struct fd_set *errorBits,
  24         const struct timespec *tv, const sigset_t *beosSignalMask);
  25 int __pselect(int numBits, struct fd_set *readBits, struct fd_set *writeBits,
  26         struct fd_set *errorBits, const struct timespec *tv,
  27         const sigset_t *sigMask);
  28
  29
  30 int
  31 __pselect_beos(int numBits, struct fd_set *readBits, struct fd_set *writeBits,
  32         struct fd_set *errorBits, const struct timespec *tv,
  33         const sigset_t *beosSignalMask)
  34 {
  35         int status;
  36         sigset_t signalMask;
  37         bigtime_t timeout = -1LL;
  38         if (tv)
  39                 timeout = tv->tv_sec * 1000000LL + tv->tv_nsec / 1000LL;
  40
  41         if (beosSignalMask != NULL)
  42                 signalMask = from_beos_sigset(*beosSignalMask);
  43
  44         status = _kern_select(numBits, readBits, writeBits, errorBits, timeout,
  45                 beosSignalMask != NULL ? &signalMask : NULL);
  46
  47         RETURN_AND_SET_ERRNO_TEST_CANCEL(status);
  48 }
  49
  50
  51 int
  52 __pselect(int numBits, struct fd_set *readBits, struct fd_set *writeBits,
  53         struct fd_set *errorBits, const struct timespec *tv,
  54         const sigset_t *sigMask)
  55 {
  56         int status;
  57         bigtime_t timeout = -1LL;
  58         if (tv)
  59                 timeout = tv->tv_sec * 1000000LL + tv->tv_nsec / 1000LL;
  60
  61         status = _kern_select(numBits, readBits, writeBits, errorBits, timeout,
  62                 sigMask);
  63
  64         RETURN_AND_SET_ERRNO_TEST_CANCEL(status);
  65 }
  66
  67
  68 int
  69 select(int numBits, struct fd_set *readBits, struct fd_set *writeBits,
  70         struct fd_set *errorBits, struct timeval *tv)
  71 {
  72         int status;
  73         bigtime_t timeout = -1LL;
  74         if (tv)
  75                 timeout = tv->tv_sec * 1000000LL + tv->tv_usec;
  76
  77         status = _kern_select(numBits, readBits, writeBits, errorBits, timeout,
  78                 NULL);
  79
  80         RETURN_AND_SET_ERRNO_TEST_CANCEL(status);
  81 }
  82
  83
  84 DEFINE_LIBROOT_KERNEL_SYMBOL_VERSION("__pselect_beos", "pselect@", "BASE");
  85
  86 DEFINE_LIBROOT_KERNEL_SYMBOL_VERSION("__pselect", "pselect@@", "1_ALPHA4");