sys/posix: impl rest of linux, impl some of Windows

2026-08-06 07:38:48 +00:00 · 2024-12-01 11:54:51 +11:00
parent 879771fe32
commit 49ddbd9b99
63 changed files with 1237 additions and 789 deletions
@@ -0,0 +1,145 @@
+#+build linux, windows, darwin, netbsd, openbsd, freebsd
+package posix
+
+import "base:intrinsics"
+
+import "core:c"
+import "core:c/libc"
+
+when ODIN_OS == .Windows {
+	foreign import lib "system:libucrt.lib"
+} else when ODIN_OS == .Darwin {
+	foreign import lib "system:System.framework"
+} else {
+	foreign import lib "system:c"
+}
+
+// signal.h - signals
+
+foreign lib {
+	/*
+	Set a signal handler.
+
+	func can either be:
+	- `auto_cast posix.SIG_DFL` setting the default handler for that specific signal
+	- `auto_cast posix.SIG_IGN` causing the specific signal to be ignored
+	- a custom signal handler
+
+	Returns: SIG_ERR (setting errno), the last value of func on success
+
+	[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/signal.html ]]
+	*/
+	signal :: proc(sig: Signal, func: proc "c" (Signal)) -> proc "c" (Signal) ---
+
+	/*
+	Raises a signal, calling its handler and then returning.
+
+	[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/raise.html ]]
+	*/
+	raise :: proc(sig: Signal) -> result ---
+}
+
+Signal :: enum c.int {
+	NONE,
+
+	// LIBC:
+
+	// Process abort signal.
+	SIGABRT   = SIGABRT,
+	// Erronous arithemtic operation.
+	SIGFPE    = SIGFPE,
+	// Illegal instruction.
+	SIGILL    = SIGILL,
+	// Terminal interrupt signal.
+	SIGINT    = SIGINT,
+	// Invalid memory reference.
+	SIGSEGV   = SIGSEGV,
+	// Termination signal.
+	SIGTERM   = SIGTERM,
+
+	// POSIX:
+
+	// Process abort signal.
+	SIGALRM   = SIGALRM,
+	// Access to an undefined portion of a memory object.
+	SIGBUS    = SIGBUS,
+	// Child process terminated, stopped, or continued.
+	SIGCHLD   = SIGCHLD,
+	// Continue execution, if stopped.
+	SIGCONT   = SIGCONT,
+	// Hangup.
+	SIGHUP    = SIGHUP,
+	// Kill (cannot be caught or ignored).
+	SIGKILL   = SIGKILL,
+	// Write on a pipe with no one to read it.
+	SIGPIPE   = SIGPIPE,
+	// Terminal quit signal.
+	SIGQUIT   = SIGQUIT,
+	// Stop executing (cannot be caught or ignored).
+	SIGSTOP   = SIGSTOP,
+	// Terminal stop process.
+	SIGTSTP   = SIGTSTP,
+	// Background process attempting read.
+	SIGTTIN   = SIGTTIN,
+	// Background process attempting write.
+	SIGTTOU   = SIGTTOU,
+	// User-defined signal 1.
+	SIGUSR1   = SIGUSR1,
+	// User-defined signal 2.
+	SIGUSR2   = SIGUSR2,
+	// Pollable event.
+	SIGPOLL   = SIGPOLL,
+	// Profiling timer expired.
+	SIGPROF   = SIGPROF,
+	// Bad system call.
+	SIGSYS    = SIGSYS,
+	// Trace/breakpoint trap.
+	SIGTRAP   = SIGTRAP,
+	// High bandwidth data is available at a socket.
+	SIGURG    = SIGURG,
+	// Virtual timer expired.
+	SIGVTALRM = SIGVTALRM,
+	// CPU time limit exceeded.
+	SIGXCPU   = SIGXCPU,
+	// File size limit exceeded.
+	SIGXFSZ   = SIGXFSZ,
+}
+
+// Request for default signal handling.
+SIG_DFL :: libc.SIG_DFL
+// Return value from signal() in case of error.
+SIG_ERR :: libc.SIG_ERR
+// Request that signal be ignored.
+SIG_IGN :: libc.SIG_IGN
+
+SIGABRT :: libc.SIGABRT
+SIGFPE  :: libc.SIGFPE
+SIGILL  :: libc.SIGILL
+SIGINT  :: libc.SIGINT
+SIGSEGV :: libc.SIGSEGV
+SIGTERM :: libc.SIGTERM
+
+when ODIN_OS == .Windows {
+	SIGALRM   :: -1
+	SIGBUS    :: -1
+	SIGCHLD   :: -1
+	SIGCONT   :: -1
+	SIGHUP    :: -1
+	SIGKILL   :: -1
+	SIGPIPE   :: -1
+	SIGQUIT   :: -1
+	SIGSTOP   :: -1
+	SIGTSTP   :: -1
+	SIGTTIN   :: -1
+	SIGTTOU   :: -1
+	SIGUSR1   :: -1
+	SIGUSR2   :: -1
+	SIGPOLL   :: -1
+	SIGPROF   :: -1
+	SIGSYS    :: -1
+	SIGTRAP   :: -1
+	SIGURG    :: -1
+	SIGVTALRM :: -1
+	SIGXCPU   :: -1
+	SIGXFSZ   :: -1
+}