src/system/libroot/posix/signal/sigqueue.cpp

   1 /*
   2  * Copyright 2011, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include <signal.h>
   8
   9 #include <errno.h>
  10
  11 #include <syscall_utils.h>
  12
  13 #include <errno_private.h>
  14 #include <signal_defs.h>
  15 #include <syscalls.h>
  16
  17
  18 int
  19 sigqueue(pid_t pid, int signal, const union sigval userValue)
  20 {
  21         if (signal < 0)
  22                 RETURN_AND_SET_ERRNO(EINVAL);
  23
  24         if (pid <= 0)
  25                 RETURN_AND_SET_ERRNO(ESRCH);
  26
  27         status_t error = _kern_send_signal(pid, signal, &userValue,
  28                 SIGNAL_FLAG_QUEUING_REQUIRED);
  29         if (error != B_OK) {
  30                 // translate B_BAD_THREAD_ID/B_BAD_TEAM_ID to ESRCH
  31                 if (error == B_BAD_THREAD_ID || error == B_BAD_TEAM_ID)
  32                         error = ESRCH;
  33         }
  34
  35         RETURN_AND_SET_ERRNO(error);
  36 }