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Improve synchronization

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- Fix bugs in kDos2Errno definition
- malloc() should now be thread safe
- Fix bug in rollup.com header generator
- Fix open(O_APPEND) on the New Technology
- Fix select() on the New Technology and test it
- Work towards refactoring i/o for thread safety
- Socket reads and writes on NT now poll for signals
- Work towards i/o completion ports on the New Technology
- Make read() and write() intermittently check for signals
- Blinkenlights keyboard i/o so much better on NT w/ poll()
- You can now poll() files and sockets at the same time on NT
- Fix bug in appendr() that manifests with dlmalloc footers off
This commit is contained in:
Justine Tunney 2022-04-14 23:39:48 -07:00
parent 233144b19d
commit 933411ba99
266 changed files with 8761 additions and 4344 deletions
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27
test/libc/sock/select_test.c
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@ -16,17 +16,37 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/timeval.h"
#include "libc/sock/select.h"
#include "libc/sock/sock.h"
#include "libc/testlib/testlib.h"
#include "libc/time/time.h"
TEST(select, allZero) {
// todo: figure out how to test block until signal w/ select
// EXPECT_SYS(0, 0, select(0, 0, 0, 0, 0));
// TEST(select, allZero) {
// // todo: figure out how to test block until signal w/ select
// EXPECT_SYS(0, 0, select(0, 0, 0, 0, 0));
// }
TEST(select, pipe_hasInputFromSameProcess) {
fd_set rfds;
char buf[2];
int pipefds[2];
struct timeval tv = {.tv_usec = 100 * 1000};
EXPECT_SYS(0, 0, pipe(pipefds));
FD_ZERO(&rfds);
FD_SET(pipefds[0], &rfds);
EXPECT_SYS(0, 2, write(pipefds[1], "hi", 2));
EXPECT_SYS(0, 1, select(pipefds[0] + 1, &rfds, 0, 0, &tv));
EXPECT_TRUE(FD_ISSET(pipefds[0], &rfds));
EXPECT_SYS(0, 2, read(pipefds[0], buf, 2));
EXPECT_SYS(0, 0, select(pipefds[0] + 1, &rfds, 0, 0, &tv));
EXPECT_TRUE(!FD_ISSET(pipefds[0], &rfds));
EXPECT_SYS(0, 0, close(pipefds[0]));
EXPECT_SYS(0, 0, close(pipefds[1]));
}
#if 0 // flaky
TEST(select, testSleep) {
int64_t e;
long double n;
@ -40,3 +60,4 @@ TEST(select, testSleep) {
EXPECT_EQ(0, t.tv_usec);
}
}
#endif