/*
 * Copyright 2013, Michael Ellerman, IBM Corp.
 * Licensed under GPLv2.
 */

#include <errno.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <elf.h>
#include <fcntl.h>
#include <link.h>
#include <sys/stat.h>

#include "subunit.h"
#include "utils.h"

#define KILL_TIMEOUT	5

static uint64_t timeout = 120;

int run_test(int (test_function)(void), char *name)
{
	bool terminated;
	int rc, status;
	pid_t pid;

	/* Make sure output is flushed before forking */
	fflush(stdout);

	pid = fork();
	if (pid == 0) {
		setpgid(0, 0);
		exit(test_function());
	} else if (pid == -1) {
		perror("fork");
		return 1;
	}

	setpgid(pid, pid);

	/* Wake us up in timeout seconds */
	alarm(timeout);
	terminated = false;

wait:
	rc = waitpid(pid, &status, 0);
	if (rc == -1) {
		if (errno != EINTR) {
			printf("unknown error from waitpid\n");
			return 1;
		}

		if (terminated) {
			printf("!! force killing %s\n", name);
			kill(-pid, SIGKILL);
			return 1;
		} else {
			printf("!! killing %s\n", name);
			kill(-pid, SIGTERM);
			terminated = true;
			alarm(KILL_TIMEOUT);
			goto wait;
		}
	}

	/* Kill anything else in the process group that is still running */
	kill(-pid, SIGTERM);

	if (WIFEXITED(status))
		status = WEXITSTATUS(status);
	else {
		if (WIFSIGNALED(status))
			printf("!! child died by signal %d\n", WTERMSIG(status));
		else
			printf("!! child died by unknown cause\n");

		status = 1; /* Signal or other */
	}

	return status;
}

static void alarm_handler(int signum)
{
	/* Jut wake us up from waitpid */
}

static struct sigaction alarm_action = {
	.sa_handler = alarm_handler,
};

void test_harness_set_timeout(uint64_t time)
{
	timeout = time;
}

int test_harness(int (test_function)(void), char *name)
{
	int rc;

	test_start(name);
	test_set_git_version(GIT_VERSION);

	if (sigaction(SIGALRM, &alarm_action, NULL)) {
		perror("sigaction");
		test_error(name);
		return 1;
	}

	rc = run_test(test_function, name);

	if (rc == MAGIC_SKIP_RETURN_VALUE)
		test_skip(name);
	else
		test_finish(name, rc);

	return rc;
}
<td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/xen/interface/nmi.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>xen</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen/interface?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>interface</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen/interface/nmi.h?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>nmi.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='7a7b5df84b6b4e5d599c7289526eed96541a0654'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Johan Hovold &lt;johan@kernel.org&gt;</td><td class='right'>2017-01-30 11:26:38 +0100</td></tr>
<tr><th>committer</th><td>Jiri Kosina &lt;jkosina@suse.cz&gt;</td><td class='right'>2017-01-31 12:59:32 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/interface/nmi.h?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>7a7b5df84b6b4e5d599c7289526eed96541a0654</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/xen/interface/nmi.h?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>cf7514c7ddf4410fe37ca9099a2785e1cf08fa7d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/xen/interface/nmi.h?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>include/xen/interface/nmi.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/interface/nmi.h?id=877a021e08ccb6434718c0cc781fdf943c884cc0'>877a021e08ccb6434718c0cc781fdf943c884cc0</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/xen/interface/nmi.h?id=7a7b5df84b6b4e5d599c7289526eed96541a0654&amp;id2=877a021e08ccb6434718c0cc781fdf943c884cc0'>diff</a>)</td></tr></table>
<div class='commit-subject'>HID: cp2112: fix sleep-while-atomic</div><div class='commit-msg'>A recent commit fixing DMA-buffers on stack added a shared transfer
buffer protected by a spinlock. This is broken as the USB HID request
callbacks can sleep. Fix this up by replacing the spinlock with a mutex.

Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable")
Cc: stable &lt;stable@vger.kernel.org&gt;	# 4.9
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Reviewed-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654'>Diffstat</a> (limited to 'include/xen/interface/nmi.h')</div><table summary='diffstat' class='diffstat'>