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Delete LIBC_CALLS_HEFTY

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- fork() no longer requires malloc()
- readdir() moved to LIBC_STDIO
- Custom APIs moved to LIBC_X
This commit is contained in:
Justine Tunney 2021-02-02 22:17:53 -08:00
parent c843243322
commit 23a14b537c
44 changed files with 95 additions and 168 deletions
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78
test/libc/calls/fork_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/msync.h"
#include "libc/sysv/consts/prot.h"
#include "libc/testlib/testlib.h"
TEST(fork, testPipes) {
int a, b;
int ws, pid;
int pipefds[2];
ASSERT_NE(-1, pipe(pipefds));
ASSERT_NE(-1, (pid = fork()));
if (!pid) {
a = 31337;
close(pipefds[0]);
write(pipefds[1], &a, sizeof(a));
close(pipefds[1]);
_exit(0);
}
EXPECT_NE(-1, close(pipefds[1]));
EXPECT_EQ(sizeof(b), read(pipefds[0], &b, sizeof(b)));
EXPECT_NE(-1, close(pipefds[0]));
EXPECT_NE(-1, waitpid(pid, &ws, 0));
EXPECT_EQ(31337, b);
}
TEST(fork, testSharedMemory) {
int ws, pid;
int stackvar;
int *sharedvar;
int *privatevar;
EXPECT_NE(MAP_FAILED,
(sharedvar = mmap(NULL, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS, -1, 0)));
EXPECT_NE(MAP_FAILED,
(privatevar = mmap(NULL, FRAMESIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)));
stackvar = 1;
*sharedvar = 1;
*privatevar = 1;
EXPECT_NE(-1, (pid = fork()));
if (!pid) {
EXPECT_EQ(NULL, getenv("_FORK"));
++stackvar;
++*sharedvar;
++*privatevar;
msync((void *)ROUNDDOWN((intptr_t)&stackvar, FRAMESIZE), FRAMESIZE,
MS_SYNC);
EXPECT_NE(-1, msync(privatevar, FRAMESIZE, MS_SYNC));
EXPECT_NE(-1, msync(sharedvar, FRAMESIZE, MS_SYNC));
_exit(0);
}
EXPECT_NE(-1, waitpid(pid, &ws, 0));
EXPECT_EQ(1, stackvar);
EXPECT_EQ(2, *sharedvar);
EXPECT_EQ(1, *privatevar);
EXPECT_NE(-1, munmap(sharedvar, FRAMESIZE));
EXPECT_NE(-1, munmap(privatevar, FRAMESIZE));
}