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cosmopolitan/libc/calls/sig.internal.h

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Make signal handling work well across platforms - 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
2022-03-25 07:11:44 -07:00
#ifndef COSMOPOLITAN_LIBC_CALLS_SIGNALS_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_SIGNALS_INTERNAL_H_
#include "libc/calls/struct/sigset.h"
Improve locks and signals - Introduce fast spinlock API - Double rand64() perf w/ spinlock - Improve raise() on New Technology - Support gettid() across platforms - Implement SA_NODEFER on New Technology - Move the lock intrinsics into LIBC_INTRIN - Make SIGTRAP recoverable on New Technology - Block SIGCHLD in wait4() on New Technology - Add threading prototypes for XNU and FreeBSD - Rewrite abort() fixing its minor bugs on XNU/NT - Shave down a lot of the content in libc/bits/bits.h - Let signal handlers modify CPU registers on New Technology
2022-04-12 05:20:17 -07:00
#include "libc/calls/ucontext.h"
Overhaul Windows signal handling The new asynchronous signal delivery technique is now also being used for tkill(), raise(), etc. Many subtle issues have been addresesd. We now signal handling on Windows that's remarkably similar to the POSIX behaviors. However that's just across threads. We're lacking a way to have the signal semantics work well, across multiple WIN32 processes.
2023-09-08 01:49:41 -07:00
#include "libc/nt/struct/context.h"
Make signal handling work well across platforms - 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
2022-03-25 07:11:44 -07:00
Elevate Windows production worthiness - SQLite file locking now works on Windows - SQLite will now use fdatasync() on non-Apple platforms - Fix Ctrl-C handler on Windows to not crash with TLS - Signals now work in multithreaded apps on Windows - fcntl() will now accurately report EINVAL errors - fcntl() now has excellent --strace logging - Token bucket replenish now go 100x faster - *NSYNC cancellations now work on Windows - Support closefrom() on NetBSD
2022-10-13 13:44:41 -07:00
#define __SIG_QUEUE_LENGTH 32
Make improvements for Actually Portable Emacs - Get SIGWINCH working again on the New Technology - Correctly handle O_NOFOLLOW in open() on Windows - Implement synthetic umask() functionality on Windows - Do a better job managing file execute access on Windows - Fill in `st_uid` and `st_gid` with username hash on Windows - Munge UNICODE control pictures into control codes on Windows - Do a better job ensuring Windows console settings are restored - Introduce KPRINTF_LOG environment variable to log kprintf to a file
2023-08-19 06:41:06 -07:00
#define __SIG_POLLING_INTERVAL_MS 20
Improve locks and signals - Introduce fast spinlock API - Double rand64() perf w/ spinlock - Improve raise() on New Technology - Support gettid() across platforms - Implement SA_NODEFER on New Technology - Move the lock intrinsics into LIBC_INTRIN - Make SIGTRAP recoverable on New Technology - Block SIGCHLD in wait4() on New Technology - Add threading prototypes for XNU and FreeBSD - Rewrite abort() fixing its minor bugs on XNU/NT - Shave down a lot of the content in libc/bits/bits.h - Let signal handlers modify CPU registers on New Technology
2022-04-12 05:20:17 -07:00
#define __SIG_LOGGING_INTERVAL_MS 1700
Make signal handling work well across platforms - 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
2022-03-25 07:11:44 -07:00
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
Overhaul Windows signal handling The new asynchronous signal delivery technique is now also being used for tkill(), raise(), etc. Many subtle issues have been addresesd. We now signal handling on Windows that's remarkably similar to the POSIX behaviors. However that's just across threads. We're lacking a way to have the signal semantics work well, across multiple WIN32 processes.
2023-09-08 01:49:41 -07:00
struct Delivery {
int ops;
int sig;
int sic;
struct NtContext *nc;
};
Trim down MODE= linkage slightly
2022-04-12 08:05:22 -07:00
struct Signals {
Rewrite Windows signal delivery system
2023-09-12 11:38:34 -07:00
uint64_t mask;
uint64_t pending;
uint64_t count;
Trim down MODE= linkage slightly
2022-04-12 08:05:22 -07:00
};
Make locks more reliable This change switches most of the core locks to be re-entrant, in order to reduce the chance of deadlocking code that does, clever things with asynchronous signal handlers. This change implements it it in pthreads so we're one step closer to having a standardized threading primitives
2022-06-11 01:59:26 -07:00
extern struct Signals __sig;
Trim down MODE= linkage slightly
2022-04-12 08:05:22 -07:00
Make forking off threads reliable on Windows This change makes posix_spawn_test no longer flaky on Windows, by (1) fixing a race condition in wait(), and (2) removing a misguided vfork implementation which was letting Windows bypass pthread_atfork().
2023-07-30 08:55:01 -07:00
bool __sig_check(int);
Overhaul Windows signal handling The new asynchronous signal delivery technique is now also being used for tkill(), raise(), etc. Many subtle issues have been addresesd. We now signal handling on Windows that's remarkably similar to the POSIX behaviors. However that's just across threads. We're lacking a way to have the signal semantics work well, across multiple WIN32 processes.
2023-09-08 01:49:41 -07:00
bool __sig_is_core(int);
Rewrite Windows signal delivery system
2023-09-12 11:38:34 -07:00
bool __sig_is_ignored(int);
Make forking off threads reliable on Windows This change makes posix_spawn_test no longer flaky on Windows, by (1) fixing a race condition in wait(), and (2) removing a misguided vfork implementation which was letting Windows bypass pthread_atfork().
2023-07-30 08:55:01 -07:00
bool __sig_handle(int, int, int, ucontext_t *);
Remove _Hide keyword It never did anything and isn't worthwhile as documentation.
2023-07-24 08:31:54 -07:00
int __sig_mask(int, const sigset_t *, sigset_t *);
Overhaul Windows signal handling The new asynchronous signal delivery technique is now also being used for tkill(), raise(), etc. Many subtle issues have been addresesd. We now signal handling on Windows that's remarkably similar to the POSIX behaviors. However that's just across threads. We're lacking a way to have the signal semantics work well, across multiple WIN32 processes.
2023-09-08 01:49:41 -07:00
bool __sig_deliver(int, int, int, ucontext_t *);
int __sig_tramp(struct Delivery *);
Improve performance and remove fd leaks
2023-09-10 11:52:03 -07:00
bool32 __sig_notify(int, int);
Make signal handling work well across platforms - 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
2022-03-25 07:11:44 -07:00
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_SIGNALS_INTERNAL_H_ */
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