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/*
This file is part of GNUnet.
(C) 2009 Christian Grothoff (and other contributing authors)
GNUnet 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, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file util/test_os_start_process.c
* @brief testcase for os start process code
*
* This testcase simply calls the os start process code
* giving a file descriptor to write stdout to. If the
* correct data "HELLO" is read then all is well.
*/
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_getopt_lib.h"
#include "gnunet_os_lib.h"
#include "gnunet_program_lib.h"
#include "gnunet_scheduler_lib.h"
#include "disk.h"
#define VERBOSE GNUNET_NO
static char *test_phrase = "HELLO WORLD";
static int ok;
static struct GNUNET_OS_Process *proc;
/* Pipe to write to started processes stdin (on write end) */
static struct GNUNET_DISK_PipeHandle *hello_pipe_stdin;
/* Pipe to read from started processes stdout (on read end) */
static struct GNUNET_DISK_PipeHandle *hello_pipe_stdout;
static GNUNET_SCHEDULER_TaskIdentifier die_task;
static void
end_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
if (0 != GNUNET_OS_process_kill (proc, SIGTERM))
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
}
GNUNET_OS_process_wait (proc);
GNUNET_OS_process_close (proc);
proc = NULL;
GNUNET_DISK_pipe_close(hello_pipe_stdout);
GNUNET_DISK_pipe_close(hello_pipe_stdin);
}
static void
read_call (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GNUNET_DISK_FileHandle *stdout_read_handle = cls;
char buf[16];
memset(&buf, 0, sizeof(buf));
int bytes;
bytes = GNUNET_DISK_file_read(stdout_read_handle, &buf, sizeof(buf));
#if VERBOSE
fprintf(stderr, "bytes is %d\n", bytes);
#endif
if (bytes < 1)
{
GNUNET_break (0);
ok = 1;
GNUNET_SCHEDULER_cancel(die_task);
GNUNET_SCHEDULER_add_now(&end_task, NULL);
return;
}
ok = strncmp(&buf[0], test_phrase, strlen(test_phrase));
#if VERBOSE
fprintf(stderr, "read %s\n", &buf[0]);
#endif
if (ok == 0)
{
GNUNET_SCHEDULER_cancel(die_task);
GNUNET_SCHEDULER_add_now(&end_task, NULL);
return;
}
GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL,
stdout_read_handle, &read_call, stdout_read_handle);
}
static void
task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
char *fn;
const struct GNUNET_DISK_FileHandle *stdout_read_handle;
const struct GNUNET_DISK_FileHandle *wh;
GNUNET_asprintf(&fn, "cat");
hello_pipe_stdin = GNUNET_DISK_pipe (GNUNET_YES, GNUNET_YES, GNUNET_NO);
hello_pipe_stdout = GNUNET_DISK_pipe (GNUNET_YES, GNUNET_NO, GNUNET_YES);
if ((hello_pipe_stdout == NULL) || (hello_pipe_stdin == NULL))
{
GNUNET_break (0);
ok = 1;
GNUNET_free (fn);
return;
}
proc = GNUNET_OS_start_process (hello_pipe_stdin, hello_pipe_stdout, fn,
"test_gnunet_echo_hello", "-", NULL);
GNUNET_free (fn);
/* Close the write end of the read pipe */
GNUNET_DISK_pipe_close_end(hello_pipe_stdout, GNUNET_DISK_PIPE_END_WRITE);
/* Close the read end of the write pipe */
GNUNET_DISK_pipe_close_end(hello_pipe_stdin, GNUNET_DISK_PIPE_END_READ);
wh = GNUNET_DISK_pipe_handle (hello_pipe_stdin, GNUNET_DISK_PIPE_END_WRITE);
/* Write the test_phrase to the cat process */
if (GNUNET_DISK_file_write(wh, test_phrase, strlen(test_phrase) + 1) != strlen(test_phrase) + 1)
{
GNUNET_break (0);
ok = 1;
return;
}
/* Close the write end to end the cycle! */
GNUNET_DISK_pipe_close_end(hello_pipe_stdin, GNUNET_DISK_PIPE_END_WRITE);
stdout_read_handle = GNUNET_DISK_pipe_handle(hello_pipe_stdout, GNUNET_DISK_PIPE_END_READ);
die_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 1), &end_task, NULL);
GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL,
stdout_read_handle, &read_call, (void *)stdout_read_handle);
}
/**
* Main method, starts scheduler with task1,
* checks that "ok" is correct at the end.
*/
static int
check ()
{
ok = 1;
GNUNET_SCHEDULER_run (&task, &ok);
return ok;
}
int
main (int argc, char *argv[])
{
int ret;
GNUNET_log_setup ("test-os-start-process",
#if VERBOSE
"DEBUG",
#else
"WARNING",
#endif
NULL);
ret = check ();
return ret;
}
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