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Make signal handling work well across platforms

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- Fix sigsuspend() on XNU
- Fix strsignal() on non-Linux
- Add unit tests for strsignal()
- Add unit tests for setitimer()
- Add unit tests for sigsuspend()
- Rewrite setitimer() for New Technology
- Rewrite nanosleep() for New Technology
- Polyfill SIGALRM on the New Technology
- select(0,0,0,0) on NT now calls pause()
- Remove some NTDLL calls that aren't needed
- Polyfill SA_NOCLDWAIT on the New Technology
- Polyfill SA_RESETHAND on the New Technology
- Polyfill sigprocmask() on the New Technology
- Polyfill SIGCHLD+SIG_IGN on the New Technology
- Polyfill SA_RESTART masking on the New Technology
- Deliver console signals from main thread on New Technology
- Document SA_RESTART behavior w/ @sarestartable / @norestart
- System call trace in MODE=dbg now prints inherited FDs and signal mask
This commit is contained in:
Justine Tunney 2022-03-25 07:11:44 -07:00
parent 3b9e66ecba
commit 072e1d2910
82 changed files with 1388 additions and 450 deletions
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7
test/libc/sock/select_test.c
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@ -23,8 +23,8 @@
#include "libc/time/time.h"
TEST(select, allZero) {
/* blocks indefinitely not worth supporting */
/* EXPECT_SYS(0, 0, select(0, 0, 0, 0, 0)); */
// todo: figure out how to test block until signal w/ select
// EXPECT_SYS(0, 0, select(0, 0, 0, 0, 0));
}
TEST(select, testSleep) {
@ -35,8 +35,7 @@ TEST(select, testSleep) {
EXPECT_SYS(0, 0, select(0, 0, 0, 0, &t));
e = (nowl() - n) * 1e6;
EXPECT_GT(e, 1000);
if (!IsBsd()) {
/* maybe we should polyfill */
if (IsLinux()) {
EXPECT_EQ(0, t.tv_sec);
EXPECT_EQ(0, t.tv_usec);
}