libuv/test/run-tests.c
Brad King 20cc969e5d
process: add CPU affinity mask option to uv_spawn
It allows setting the child process' CPU affinity mask.
Implement it on Linux, FreeBSD, and Windows for now, and fail with
UV_ENOTSUP on other platforms.

Fixes: https://github.com/libuv/libuv/issues/1389
PR-URL: https://github.com/libuv/libuv/pull/1527
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
2018-02-28 22:12:12 +01:00

254 lines
6.0 KiB
C

/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <errno.h>
#include <stdio.h>
#include <string.h>
#ifdef _WIN32
# include <io.h>
#else
# include <unistd.h>
# include <sched.h>
#endif
#if defined(__FreeBSD__)
# include <sys/param.h>
# include <sys/cpuset.h>
# include <pthread_np.h>
#endif
#include "uv.h"
#include "runner.h"
#include "task.h"
/* Actual tests and helpers are defined in test-list.h */
#include "test-list.h"
int ipc_helper(int listen_after_write);
int ipc_helper_tcp_connection(void);
int ipc_helper_closed_handle(void);
int ipc_send_recv_helper(void);
int ipc_helper_bind_twice(void);
int stdio_over_pipes_helper(void);
int spawn_stdin_stdout(void);
int spawn_tcp_server_helper(void);
static int maybe_run_test(int argc, char **argv);
int main(int argc, char **argv) {
if (platform_init(argc, argv))
return EXIT_FAILURE;
argv = uv_setup_args(argc, argv);
switch (argc) {
case 1: return run_tests(0);
case 2: return maybe_run_test(argc, argv);
case 3: return run_test_part(argv[1], argv[2]);
case 4: return maybe_run_test(argc, argv);
default:
fprintf(stderr, "Too many arguments.\n");
fflush(stderr);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
static int maybe_run_test(int argc, char **argv) {
if (strcmp(argv[1], "--list") == 0) {
print_tests(stdout);
return 0;
}
if (strcmp(argv[1], "ipc_helper_listen_before_write") == 0) {
return ipc_helper(0);
}
if (strcmp(argv[1], "ipc_helper_listen_after_write") == 0) {
return ipc_helper(1);
}
if (strcmp(argv[1], "ipc_send_recv_helper") == 0) {
return ipc_send_recv_helper();
}
if (strcmp(argv[1], "ipc_helper_tcp_connection") == 0) {
return ipc_helper_tcp_connection();
}
if (strcmp(argv[1], "ipc_helper_closed_handle") == 0) {
return ipc_helper_closed_handle();
}
if (strcmp(argv[1], "ipc_helper_bind_twice") == 0) {
return ipc_helper_bind_twice();
}
if (strcmp(argv[1], "stdio_over_pipes_helper") == 0) {
return stdio_over_pipes_helper();
}
if (strcmp(argv[1], "spawn_helper1") == 0) {
return 1;
}
if (strcmp(argv[1], "spawn_helper2") == 0) {
printf("hello world\n");
return 1;
}
if (strcmp(argv[1], "spawn_tcp_server_helper") == 0) {
return spawn_tcp_server_helper();
}
if (strcmp(argv[1], "spawn_helper3") == 0) {
char buffer[256];
ASSERT(buffer == fgets(buffer, sizeof(buffer) - 1, stdin));
buffer[sizeof(buffer) - 1] = '\0';
fputs(buffer, stdout);
return 1;
}
if (strcmp(argv[1], "spawn_helper4") == 0) {
/* Never surrender, never return! */
while (1) uv_sleep(10000);
}
if (strcmp(argv[1], "spawn_helper5") == 0) {
const char out[] = "fourth stdio!\n";
#ifdef _WIN32
DWORD bytes;
WriteFile((HANDLE) _get_osfhandle(3), out, sizeof(out) - 1, &bytes, NULL);
#else
{
ssize_t r;
do
r = write(3, out, sizeof(out) - 1);
while (r == -1 && errno == EINTR);
fsync(3);
}
#endif
return 1;
}
if (strcmp(argv[1], "spawn_helper6") == 0) {
int r;
r = fprintf(stdout, "hello world\n");
ASSERT(r > 0);
r = fprintf(stderr, "hello errworld\n");
ASSERT(r > 0);
return 1;
}
if (strcmp(argv[1], "spawn_helper7") == 0) {
int r;
char *test;
/* Test if the test value from the parent is still set */
test = getenv("ENV_TEST");
ASSERT(test != NULL);
r = fprintf(stdout, "%s", test);
ASSERT(r > 0);
return 1;
}
#ifndef _WIN32
if (strcmp(argv[1], "spawn_helper8") == 0) {
int fd;
ASSERT(sizeof(fd) == read(0, &fd, sizeof(fd)));
ASSERT(fd > 2);
ASSERT(-1 == write(fd, "x", 1));
return 1;
}
#endif /* !_WIN32 */
if (strcmp(argv[1], "spawn_helper9") == 0) {
return spawn_stdin_stdout();
}
#ifndef _WIN32
if (strcmp(argv[1], "spawn_helper_setuid_setgid") == 0) {
uv_uid_t uid = atoi(argv[2]);
uv_gid_t gid = atoi(argv[3]);
ASSERT(uid == getuid());
ASSERT(gid == getgid());
return 1;
}
#endif /* !_WIN32 */
#if !defined(NO_CPU_AFFINITY)
if (strcmp(argv[1], "spawn_helper_affinity") == 0) {
int i;
int r;
int cpu;
int cpumask_size;
#ifdef _WIN32
DWORD_PTR procmask;
DWORD_PTR sysmask;
#elif defined(__linux__)
cpu_set_t cpuset;
#else
cpuset_t cpuset;
#endif
cpumask_size = uv_cpumask_size();
ASSERT(cpumask_size > 0);
cpu = atoi(argv[2]);
ASSERT(cpu >= 0);
ASSERT(cpu < cpumask_size);
/* verify the mask has the cpu we expect */
#ifdef _WIN32
r = GetProcessAffinityMask(GetCurrentProcess(), &procmask, &sysmask);
ASSERT(r != 0);
for (i = 0; i < cpumask_size; ++i) {
ASSERT(((procmask & (((DWORD_PTR)1) << i)) != 0) == (i == cpu));
}
#else
CPU_ZERO(&cpuset);
r = pthread_getaffinity_np(pthread_self(), sizeof(cpuset), &cpuset);
ASSERT(r == 0);
for (i = 0; i < cpumask_size; ++i) {
ASSERT(CPU_ISSET(i, &cpuset) == (i == cpu));
}
#endif
return 1;
}
#endif
return run_test(argv[1], 0, 1);
}