mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-10 06:32:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Greatly expand system() shell code features

Browse source 
The cosmopolitan command interpreter now has 13 builtin commands,
variable support, support for ; / && / || syntax, asynchronous support,
and plenty of unit tests with bug fixes.

This change fixes a bug in posix_spawn() with null envp arg. strace
logging now uses atomic writes for scatter functions. Breaking change
renaming GetCpuCount() to _getcpucount(). TurfWar is now updated to use
the new token bucket algorithm. WIN32 affinity masks now inherit across
fork() and execve().
This commit is contained in:
Justine Tunney 2022-10-11 21:06:27 -07:00
parent e7329b7cba
commit b41f91c658
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
80 changed files with 1370 additions and 344 deletions
Download patch file Download diff file Expand all files Collapse all files

33
test/libc/stdio/spawn_test.c
View file

@ -29,20 +29,18 @@
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
void SetUpOnce(void) {
__enable_threads();
}
char testlib_enable_tmp_setup_teardown;
__attribute__((__constructor__)) static void init(void) {
if (atoi(nulltoempty(getenv("THE_DOGE"))) == 42) {
exit(42);
switch (atoi(nulltoempty(getenv("THE_DOGE")))) {
case 42:
exit(42);
default:
break;
}
}
TEST(spawn, test) {
if (atoi(nulltoempty(getenv("THE_DOGE"))) == 42) {
exit(42);
}
int rc, ws, pid;
char *prog = GetProgramExecutableName();
char *args[] = {program_invocation_name, NULL};
@ -53,6 +51,25 @@ TEST(spawn, test) {
EXPECT_EQ(42, WEXITSTATUS(ws));
}
TEST(spawn, pipe) {
char buf[10];
int p[2], pid, status;
const char *pn = "./echo.com";
posix_spawn_file_actions_t fa;
testlib_extract("/zip/echo.com", "echo.com", 0755);
ASSERT_SYS(0, 0, pipe(p));
ASSERT_EQ(0, posix_spawn_file_actions_init(&fa));
ASSERT_EQ(0, posix_spawn_file_actions_addclose(&fa, p[0]));
ASSERT_EQ(0, posix_spawn_file_actions_adddup2(&fa, p[1], 1));
ASSERT_EQ(0, posix_spawn_file_actions_addclose(&fa, p[1]));
ASSERT_EQ(0, posix_spawnp(&pid, pn, &fa, 0, (char *[]){pn, "hello", 0}, 0));
ASSERT_SYS(0, 0, close(p[1]));
ASSERT_SYS(0, pid, waitpid(pid, &status, 0));
ASSERT_SYS(0, 6, read(p[0], buf, sizeof(buf)));
ASSERT_SYS(0, 0, close(p[0]));
ASSERT_EQ(0, posix_spawn_file_actions_destroy(&fa));
}
/*
* BEST LINUX FORK+EXEC+EXIT+WAIT PERFORMANCE
* The fastest it can go with fork() is 40µs