kc3-lang/gnulib/tests/test-nonblocking-pipe-main.c

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• Hash : 0131f682
  Author :
  Date : 2012-02-04T18:18:37
  

  nonblocking-pipe tests: Fix a NULL program name in a diagnostic.
  
  * tests/test-nonblocking-pipe-main.c: Include progname.h.
  (main): Invoke set_program_name.
  * modules/nonblocking-pipe-tests (Depends-on): Add progname.
  

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• tests/test-nonblocking-pipe-main.c

• /* Test for nonblocking read and write on pipes.
  
     Copyright (C) 2011-2012 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  #include <errno.h>
  #include <stdbool.h>
  #include <stdlib.h>
  #include <string.h>
  #include <unistd.h>
  #include <sys/time.h>
  
  #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
  # include <process.h>
  #else
  # include <spawn.h>
  #endif
  
  #include "nonblocking.h"
  #include "wait-process.h"
  #include "progname.h"
  
  #include "macros.h"
  #include "test-nonblocking-pipe.h"
  #define PROG_ROLE "main"
  #include "test-nonblocking-writer.h"
  
  int
  main (int argc, char *argv[])
  {
    const char *child_path;
    int test;
    int fd[2];
    int child;
    int exitcode;
  
    set_program_name (argv[0]);
  
    child_path = argv[1];
    test = atoi (argv[2]);
  
    /* Create a pipe.  */
    ASSERT (pipe (fd) >= 0);
  
    /* Map fd[0] to STDIN_FILENO and fd[1] to STDOUT_FILENO, because on Windows,
       the only three file descriptors that are inherited by child processes are
       STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO.  */
    if (fd[0] != STDIN_FILENO)
      {
        ASSERT (dup2 (fd[0], STDIN_FILENO) >= 0);
        close (fd[0]);
      }
    if (fd[1] != STDOUT_FILENO)
      {
        ASSERT (dup2 (fd[1], STDOUT_FILENO) >= 0);
        close (fd[1]);
      }
  
    /* Prepare the file descriptors.  */
    if (test & 1)
      ASSERT (set_nonblocking_flag (STDOUT_FILENO, true) >= 0);
    if (test & 2)
      ASSERT (set_nonblocking_flag (STDIN_FILENO, true) >= 0);
  
    /* Spawn the child process.  */
    {
      const char *child_argv[3];
  
      child_argv[0] = child_path;
      child_argv[1] = argv[2];
      child_argv[2] = NULL;
  
  #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
      child = spawnvpe (P_NOWAIT, child_path, child_argv,
                        (const char **) environ);
      ASSERT (child >= 0);
  #else
      {
        pid_t child_pid;
        int err =
          posix_spawnp (&child_pid, child_path, NULL, NULL, (char **) child_argv,
                        environ);
        ASSERT (err == 0);
        child = child_pid;
      }
  #endif
    }
  
    /* Close unused file descriptors.  */
    close (STDIN_FILENO);
  
    exitcode =
      main_writer_loop (test, PIPE_DATA_BLOCK_SIZE, STDOUT_FILENO, false);
  
    {
      int err =
        wait_subprocess (child, child_path, false, false, false, false, NULL);
      ASSERT (err == 0);
    }
  
    return exitcode;
  }
  

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