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Get threads working on all platforms

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We now have a high-quality clone() implementation for creating
lightweight threads on Linux/Windows/FreeBSD/NetBSD/OpenBSD.
This commit is contained in:
Justine Tunney 2022-05-12 17:52:13 -07:00
parent 4e62cefa6e
commit fec396037a
43 changed files with 850 additions and 532 deletions
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14
test/libc/rand/rand64_test.c
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@ -33,6 +33,7 @@
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/testlib.h"
#include "libc/time/time.h"
#define THREADS 8
#define ENTRIES 256
@ -76,7 +77,6 @@ TEST(rand64, testThreadSafety_doesntProduceIdenticalValues) {
sigset_t ss, oldss;
void *stacks[THREADS];
int i, j, rc, ws, tid[THREADS];
if (IsXnu()) return;
struct sigaction oldsa;
struct sigaction sa = {.sa_handler = OnChld, .sa_flags = SA_RESTART};
EXPECT_NE(-1, sigaction(SIGCHLD, &sa, &oldsa));
@ -89,9 +89,9 @@ TEST(rand64, testThreadSafety_doesntProduceIdenticalValues) {
}
ready = false;
for (i = 0; i < THREADS; ++i) {
stacks[i] = mmap(0, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
tid[i] = clone(Thrasher, stacks[i], FRAMESIZE,
stacks[i] = mmap(0, GetStackSize(), PROT_READ | PROT_WRITE,
MAP_STACK | MAP_ANONYMOUS, -1, 0);
tid[i] = clone(Thrasher, stacks[i], GetStackSize(),
CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND,
(void *)(intptr_t)i, 0, 0, 0, 0);
ASSERT_NE(-1, tid[i]);
@ -110,6 +110,10 @@ TEST(rand64, testThreadSafety_doesntProduceIdenticalValues) {
}
}
for (i = 0; i < THREADS; ++i) {
EXPECT_SYS(0, 0, munmap(stacks[i], FRAMESIZE));
tkill(tid[i], SIGKILL);
errno = 0;
}
for (i = 0; i < THREADS; ++i) {
EXPECT_SYS(0, 0, munmap(stacks[i], GetStackSize()));
}
}