remove pthread from sys/unix and use sys/posix where used

core/sys/unix/pthread_darwin.odin

@@ -1,96 +0,0 @@
-#+build darwin
-package unix
-
-import "core:c"
-
-// NOTE(tetra): No 32-bit Macs.
-// Source: _pthread_types.h on my Mac.
-PTHREAD_SIZE           :: 8176
-PTHREAD_ATTR_SIZE      :: 56
-PTHREAD_MUTEXATTR_SIZE :: 8
-PTHREAD_MUTEX_SIZE     :: 56
-PTHREAD_CONDATTR_SIZE  :: 8
-PTHREAD_COND_SIZE      :: 40
-PTHREAD_ONCE_SIZE      :: 8
-PTHREAD_RWLOCK_SIZE    :: 192
-PTHREAD_RWLOCKATTR_SIZE :: 16
-
-pthread_t :: distinct u64
-
-pthread_attr_t :: struct {
-	sig: c.long,
-	_: [PTHREAD_ATTR_SIZE] c.char,
-}
-
-pthread_cond_t :: struct {
-	sig: c.long,
-	_: [PTHREAD_COND_SIZE] c.char,
-}
-
-pthread_condattr_t :: struct {
-	sig: c.long,
-	_: [PTHREAD_CONDATTR_SIZE] c.char,
-}
-
-pthread_mutex_t :: struct {
-	sig: c.long,
-	_: [PTHREAD_MUTEX_SIZE] c.char,
-}
-
-pthread_mutexattr_t :: struct {
-	sig: c.long,
-	_: [PTHREAD_MUTEXATTR_SIZE] c.char,
-}
-
-pthread_once_t :: struct {
-	sig: c.long,
-	_: [PTHREAD_ONCE_SIZE] c.char,
-}
-
-pthread_rwlock_t :: struct {
-	sig: c.long,
-	_: [PTHREAD_RWLOCK_SIZE] c.char,
-}
-
-pthread_rwlockattr_t :: struct {
-	sig: c.long,
-	_: [PTHREAD_RWLOCKATTR_SIZE] c.char,
-}
-
-SCHED_OTHER :: 1 // Avoid if you are writing portable software.
-SCHED_FIFO  :: 4
-SCHED_RR :: 2 // Round robin.
-
-SCHED_PARAM_SIZE :: 4
-
-sched_param :: struct {
-	sched_priority: c.int,
-	_: [SCHED_PARAM_SIZE] c.char,
-}
-
-// Source: https://github.com/apple/darwin-libpthread/blob/03c4628c8940cca6fd6a82957f683af804f62e7f/pthread/pthread.h#L138
-PTHREAD_CREATE_JOINABLE :: 1
-PTHREAD_CREATE_DETACHED :: 2
-PTHREAD_INHERIT_SCHED :: 1
-PTHREAD_EXPLICIT_SCHED :: 2
-PTHREAD_PROCESS_SHARED :: 1
-PTHREAD_PROCESS_PRIVATE :: 2
-
-
-PTHREAD_MUTEX_NORMAL :: 0
-PTHREAD_MUTEX_RECURSIVE :: 1
-PTHREAD_MUTEX_ERRORCHECK :: 2
-
-PTHREAD_CANCEL_ENABLE       :: 0
-PTHREAD_CANCEL_DISABLE      :: 1
-PTHREAD_CANCEL_DEFERRED     :: 0
-PTHREAD_CANCEL_ASYNCHRONOUS :: 1
-
-foreign import pthread "system:System.framework"
-
-@(default_calling_convention="c")
-foreign pthread {
-	pthread_setcancelstate :: proc (state: c.int, old_state: ^c.int) -> c.int ---
-	pthread_setcanceltype  :: proc (type:  c.int, old_type:  ^c.int) -> c.int ---
-	pthread_cancel         :: proc (thread: pthread_t) -> c.int ---
-}

core/sys/unix/pthread_freebsd.odin

@@ -1,122 +0,0 @@
-#+build freebsd
-package unix
-
-import "core:c"
-
-pthread_t :: distinct u64
-// pthread_t :: struct #align(16) { x: u64 }
-
-PTHREAD_COND_T_SIZE :: 8
-
-PTHREAD_MUTEXATTR_T_SIZE :: 8
-PTHREAD_CONDATTR_T_SIZE  :: 8
-PTHREAD_RWLOCKATTR_T_SIZE  :: 8
-PTHREAD_BARRIERATTR_T_SIZE :: 8
-
-// WARNING: The sizes of these things are different yet again
-// on non-X86!
-when size_of(int) == 8 {
-	PTHREAD_ATTR_T_SIZE  :: 8
-	PTHREAD_MUTEX_T_SIZE :: 8
-	PTHREAD_RWLOCK_T_SIZE  :: 8
-	PTHREAD_BARRIER_T_SIZE :: 8
-} else when size_of(int) == 4 { // TODO
-	PTHREAD_ATTR_T_SIZE  :: 32
-	PTHREAD_MUTEX_T_SIZE :: 32
-	PTHREAD_RWLOCK_T_SIZE  :: 44
-	PTHREAD_BARRIER_T_SIZE :: 20
-}
-
-pthread_cond_t :: struct #align(16) {
-	_: [PTHREAD_COND_T_SIZE] c.char,
-}
-pthread_mutex_t :: struct #align(16) {
-	_: [PTHREAD_MUTEX_T_SIZE] c.char,
-}
-pthread_rwlock_t :: struct #align(16) {
-	_: [PTHREAD_RWLOCK_T_SIZE] c.char,
-}
-pthread_barrier_t :: struct #align(16) {
-	_: [PTHREAD_BARRIER_T_SIZE] c.char,
-}
-
-pthread_attr_t :: struct #align(16) {
-	_: [PTHREAD_ATTR_T_SIZE] c.char,
-}
-pthread_condattr_t :: struct #align(16) {
-	_: [PTHREAD_CONDATTR_T_SIZE] c.char,
-}
-pthread_mutexattr_t :: struct #align(16) {
-	_: [PTHREAD_MUTEXATTR_T_SIZE] c.char,
-}
-pthread_rwlockattr_t :: struct #align(16) {
-	_: [PTHREAD_RWLOCKATTR_T_SIZE] c.char,
-}
-pthread_barrierattr_t :: struct #align(16) {
-	_: [PTHREAD_BARRIERATTR_T_SIZE] c.char,
-}
-
-PTHREAD_MUTEX_ERRORCHECK :: 1
-PTHREAD_MUTEX_RECURSIVE :: 2
-PTHREAD_MUTEX_NORMAL :: 3
-
-
-PTHREAD_CREATE_JOINABLE :: 0
-PTHREAD_CREATE_DETACHED :: 1
-PTHREAD_INHERIT_SCHED :: 4
-PTHREAD_EXPLICIT_SCHED :: 0
-PTHREAD_PROCESS_PRIVATE :: 0
-PTHREAD_PROCESS_SHARED :: 1
-
-SCHED_FIFO  :: 1
-SCHED_OTHER :: 2
-SCHED_RR :: 3 // Round robin.
-
-
-sched_param :: struct {
-	sched_priority: c.int,
-}
-
-_usem :: struct {
-	_has_waiters: u32,
-	_count: u32,
-	_flags: u32,
-}
-_usem2 :: struct {
-	_count: u32,
-	_flags: u32,
-}
-sem_t :: struct {
-	_magic: u32,
-	_kern: _usem2,
-	_padding: u32,
-}
-
-PTHREAD_CANCEL_ENABLE       :: 0
-PTHREAD_CANCEL_DISABLE      :: 1
-PTHREAD_CANCEL_DEFERRED     :: 0
-PTHREAD_CANCEL_ASYNCHRONOUS :: 2
-
-foreign import "system:pthread"
-
-@(default_calling_convention="c")
-foreign pthread {
-	// create named semaphore.
-	// used in process-shared semaphores.
-	sem_open :: proc(name: cstring, flags: c.int) -> ^sem_t ---
-
-	sem_init :: proc(sem: ^sem_t, pshared: c.int, initial_value: c.uint) -> c.int ---
-	sem_destroy :: proc(sem: ^sem_t) -> c.int ---
-	sem_post :: proc(sem: ^sem_t) -> c.int ---
-	sem_wait :: proc(sem: ^sem_t) -> c.int ---
-	sem_trywait :: proc(sem: ^sem_t) -> c.int ---
-	// sem_timedwait :: proc(sem: ^sem_t, timeout: time.TimeSpec) -> c.int ---
-
-	// NOTE: unclear whether pthread_yield is well-supported on Linux systems,
-	// see https://linux.die.net/man/3/pthread_yield
-	pthread_yield :: proc() ---
-
-	pthread_setcancelstate :: proc (state: c.int, old_state: ^c.int) -> c.int ---
-	pthread_setcanceltype  :: proc (type:  c.int, old_type:  ^c.int) -> c.int ---
-	pthread_cancel         :: proc (thread: pthread_t) -> c.int ---
-}

core/sys/unix/pthread_haiku.odin

@@ -1,71 +0,0 @@
-package unix
-
-import "core:c"
-
-pthread_t             :: distinct rawptr
-pthread_attr_t        :: distinct rawptr
-pthread_mutex_t       :: distinct rawptr
-pthread_mutexattr_t   :: distinct rawptr
-pthread_cond_t        :: distinct rawptr
-pthread_condattr_t    :: distinct rawptr
-pthread_rwlock_t      :: distinct rawptr
-pthread_rwlockattr_t  :: distinct rawptr
-pthread_barrier_t     :: distinct rawptr
-pthread_barrierattr_t :: distinct rawptr
-pthread_spinlock_t    :: distinct rawptr
-
-pthread_key_t  :: distinct c.int
-pthread_once_t :: struct {
-	state: c.int,
-	mutex: pthread_mutex_t,
-}
-
-PTHREAD_MUTEX_DEFAULT    :: 0
-PTHREAD_MUTEX_NORMAL     :: 1
-PTHREAD_MUTEX_ERRORCHECK :: 2
-PTHREAD_MUTEX_RECURSIVE  :: 3
-
-PTHREAD_DETACHED      :: 0x1
-PTHREAD_SCOPE_SYSTEM  :: 0x2
-PTHREAD_INHERIT_SCHED :: 0x4
-PTHREAD_NOFLOAT       :: 0x8
-
-PTHREAD_CREATE_DETACHED :: PTHREAD_DETACHED
-PTHREAD_CREATE_JOINABLE :: 0
-PTHREAD_SCOPE_PROCESS   :: 0
-PTHREAD_EXPLICIT_SCHED  :: 0
-
-SCHED_FIFO     :: 1
-SCHED_RR       :: 2
-SCHED_SPORADIC :: 3
-SCHED_OTHER    :: 4
-
-sched_param :: struct {
-	sched_priority: c.int,
-}
-
-sem_t :: distinct rawptr
-
-PTHREAD_CANCEL_ENABLE       :: 0
-PTHREAD_CANCEL_DISABLE      :: 1
-PTHREAD_CANCEL_DEFERRED     :: 0
-PTHREAD_CANCEL_ASYNCHRONOUS :: 2
-
-foreign import libc "system:c"
-
-@(default_calling_convention="c")
-foreign libc {
-	sem_open :: proc(name: cstring, flags: c.int) -> ^sem_t ---
-
-	sem_init :: proc(sem: ^sem_t, pshared: c.int, initial_value: c.uint) -> c.int ---
-	sem_destroy :: proc(sem: ^sem_t) -> c.int ---
-	sem_post :: proc(sem: ^sem_t) -> c.int ---
-	sem_wait :: proc(sem: ^sem_t) -> c.int ---
-	sem_trywait :: proc(sem: ^sem_t) -> c.int ---
-	
-	pthread_yield :: proc() ---
-
-	pthread_setcancelstate :: proc (state: c.int, old_state: ^c.int) -> c.int ---
-	pthread_setcanceltype  :: proc (type:  c.int, old_type:  ^c.int) -> c.int ---
-	pthread_cancel         :: proc (thread: pthread_t) -> c.int ---
-}

core/sys/unix/pthread_linux.odin

@@ -1,124 +0,0 @@
-#+build linux
-package unix
-
-import "core:c"
-
-// TODO(tetra): For robustness, I'd like to mark this with align 16.
-// I cannot currently do this.
-// And at the time of writing there is a bug with putting it
-// as the only field in a struct.
-pthread_t :: distinct u64
-// pthread_t :: struct #align(16) { x: u64 };
-
-// NOTE(tetra): Got all the size constants from pthreadtypes-arch.h on my
-// Linux machine.
-
-PTHREAD_COND_T_SIZE :: 48
-
-PTHREAD_MUTEXATTR_T_SIZE :: 4
-PTHREAD_CONDATTR_T_SIZE  :: 4
-PTHREAD_RWLOCKATTR_T_SIZE  :: 8
-PTHREAD_BARRIERATTR_T_SIZE :: 4
-
-// WARNING: The sizes of these things are different yet again
-// on non-X86!
-when size_of(int) == 8 {
-	PTHREAD_ATTR_T_SIZE  :: 56
-	PTHREAD_MUTEX_T_SIZE :: 40
-	PTHREAD_RWLOCK_T_SIZE  :: 56
-	PTHREAD_BARRIER_T_SIZE :: 32
-} else when size_of(int) == 4 {
-	PTHREAD_ATTR_T_SIZE  :: 32
-	PTHREAD_MUTEX_T_SIZE :: 32
-	PTHREAD_RWLOCK_T_SIZE  :: 44
-	PTHREAD_BARRIER_T_SIZE :: 20
-}
-
-pthread_cond_t :: struct #align(16) {
-	_: [PTHREAD_COND_T_SIZE] c.char,
-}
-pthread_mutex_t :: struct #align(16) {
-	_: [PTHREAD_MUTEX_T_SIZE] c.char,
-}
-pthread_rwlock_t :: struct #align(16) {
-	_: [PTHREAD_RWLOCK_T_SIZE] c.char,
-}
-pthread_barrier_t :: struct #align(16) {
-	_: [PTHREAD_BARRIER_T_SIZE] c.char,
-}
-
-pthread_attr_t :: struct #align(16) {
-	_: [PTHREAD_ATTR_T_SIZE] c.char,
-}
-pthread_condattr_t :: struct #align(16) {
-	_: [PTHREAD_CONDATTR_T_SIZE] c.char,
-}
-pthread_mutexattr_t :: struct #align(16) {
-	_: [PTHREAD_MUTEXATTR_T_SIZE] c.char,
-}
-pthread_rwlockattr_t :: struct #align(16) {
-	_: [PTHREAD_RWLOCKATTR_T_SIZE] c.char,
-}
-pthread_barrierattr_t :: struct #align(16) {
-	_: [PTHREAD_BARRIERATTR_T_SIZE] c.char,
-}
-
-PTHREAD_MUTEX_NORMAL :: 0
-PTHREAD_MUTEX_RECURSIVE :: 1
-PTHREAD_MUTEX_ERRORCHECK :: 2
-
-
-// TODO(tetra, 2019-11-01): Maybe make `enum c.int`s for these?
-PTHREAD_CREATE_JOINABLE :: 0
-PTHREAD_CREATE_DETACHED :: 1
-PTHREAD_INHERIT_SCHED :: 0
-PTHREAD_EXPLICIT_SCHED :: 1
-PTHREAD_PROCESS_PRIVATE :: 0
-PTHREAD_PROCESS_SHARED :: 1
-
-SCHED_OTHER :: 0
-SCHED_FIFO  :: 1
-SCHED_RR :: 2 // Round robin.
-
-sched_param :: struct {
-	sched_priority: c.int,
-}
-
-sem_t :: struct #align(16) {
-	_: [SEM_T_SIZE] c.char,
-}
-
-when size_of(int) == 8 {
-	SEM_T_SIZE :: 32
-} else when size_of(int) == 4 {
-	SEM_T_SIZE :: 16
-}
-
-PTHREAD_CANCEL_ENABLE       :: 0
-PTHREAD_CANCEL_DISABLE      :: 1
-PTHREAD_CANCEL_DEFERRED     :: 0
-PTHREAD_CANCEL_ASYNCHRONOUS :: 1
-
-foreign import "system:pthread"
-
-@(default_calling_convention="c")
-foreign pthread {
-	// create named semaphore.
-	// used in process-shared semaphores.
-	sem_open :: proc(name: cstring, flags: c.int) -> ^sem_t ---
-
-	sem_init :: proc(sem: ^sem_t, pshared: c.int, initial_value: c.uint) -> c.int ---
-	sem_destroy :: proc(sem: ^sem_t) -> c.int ---
-	sem_post :: proc(sem: ^sem_t) -> c.int ---
-	sem_wait :: proc(sem: ^sem_t) -> c.int ---
-	sem_trywait :: proc(sem: ^sem_t) -> c.int ---
-	// sem_timedwait :: proc(sem: ^sem_t, timeout: time.TimeSpec) -> c.int ---;
-
-	// NOTE: unclear whether pthread_yield is well-supported on Linux systems,
-	// see https://linux.die.net/man/3/pthread_yield
-	pthread_yield :: proc() -> c.int ---
-
-	pthread_setcancelstate :: proc (state: c.int, old_state: ^c.int) -> c.int ---
-	pthread_setcanceltype  :: proc (type:  c.int, old_type:  ^c.int) -> c.int ---
-	pthread_cancel         :: proc (thread: pthread_t) -> c.int ---
-}

core/sys/unix/pthread_netbsd.odin

@@ -1,102 +0,0 @@
-package unix
-
-import "core:c"
-
-pthread_t :: distinct rawptr
-
-SEM_T_SIZE :: 8
-
-PTHREAD_CONDATTR_T_SIZE    :: 16
-PTHREAD_MUTEXATTR_T_SIZE   :: 16
-PTHREAD_RWLOCKATTR_T_SIZE  :: 16
-PTHREAD_BARRIERATTR_T_SIZE :: 16
-
-PTHREAD_COND_T_SIZE    :: 40
-PTHREAD_MUTEX_T_SIZE   :: 48
-PTHREAD_RWLOCK_T_SIZE  :: 64
-PTHREAD_BARRIER_T_SIZE :: 48
-PTHREAD_ATTR_T_SIZE    :: 16
-
-pthread_cond_t :: struct #align(8) {
-	_: [PTHREAD_COND_T_SIZE] c.char,
-}
-
-pthread_mutex_t :: struct #align(8) {
-	_: [PTHREAD_MUTEX_T_SIZE] c.char,
-}
-
-pthread_rwlock_t :: struct #align(8) {
-	_: [PTHREAD_RWLOCK_T_SIZE] c.char,
-}
-
-pthread_barrier_t :: struct #align(8) {
-	_: [PTHREAD_BARRIER_T_SIZE] c.char,
-}
-
-pthread_attr_t :: struct #align(8) {
-	_: [PTHREAD_ATTR_T_SIZE] c.char,
-}
-
-pthread_condattr_t :: struct #align(8) {
-	_: [PTHREAD_CONDATTR_T_SIZE] c.char,
-}
-
-pthread_mutexattr_t :: struct #align(8) {
-	_: [PTHREAD_MUTEXATTR_T_SIZE] c.char,
-}
-
-pthread_rwlockattr_t :: struct #align(8) {
-	_: [PTHREAD_RWLOCKATTR_T_SIZE] c.char,
-}
-
-pthread_barrierattr_t :: struct #align(8) {
-	_: [PTHREAD_BARRIERATTR_T_SIZE] c.char,
-}
-
-PTHREAD_MUTEX_NORMAL     :: 0
-PTHREAD_MUTEX_ERRORCHECK :: 1
-PTHREAD_MUTEX_RECURSIVE  :: 2
-
-PTHREAD_CREATE_JOINABLE :: 0
-PTHREAD_CREATE_DETACHED :: 1
-PTHREAD_INHERIT_SCHED   :: 0
-PTHREAD_EXPLICIT_SCHED  :: 1
-PTHREAD_PROCESS_PRIVATE :: 0
-PTHREAD_PROCESS_SHARED  :: 1
-
-SCHED_NONE  :: -1
-SCHED_OTHER :: 0
-SCHED_FIFO  :: 1
-SCHED_RR    :: 3
-
-sched_param :: struct {
-	sched_priority: c.int,
-}
-
-sem_t :: struct #align(16) {
-	_: [SEM_T_SIZE] c.char,
-}
-
-PTHREAD_CANCEL_ENABLE       :: 0
-PTHREAD_CANCEL_DISABLE      :: 1
-PTHREAD_CANCEL_DEFERRED     :: 0
-PTHREAD_CANCEL_ASYNCHRONOUS :: 1
-
-foreign import "system:pthread"
-
-@(default_calling_convention="c")
-foreign pthread {
-	sem_open :: proc(name: cstring, flags: c.int) -> ^sem_t ---
-
-	sem_init :: proc(sem: ^sem_t, pshared: c.int, initial_value: c.uint) -> c.int ---
-	sem_destroy :: proc(sem: ^sem_t) -> c.int ---
-	sem_post :: proc(sem: ^sem_t) -> c.int ---
-	sem_wait :: proc(sem: ^sem_t) -> c.int ---
-	sem_trywait :: proc(sem: ^sem_t) -> c.int ---
-
-	pthread_yield :: proc() ---
-
-	pthread_setcancelstate :: proc (state: c.int, old_state: ^c.int) -> c.int ---
-	pthread_setcanceltype  :: proc (type:  c.int, old_type:  ^c.int) -> c.int ---
-	pthread_cancel         :: proc (thread: pthread_t) -> c.int ---
-}

core/sys/unix/pthread_openbsd.odin

@@ -1,74 +0,0 @@
-#+build openbsd
-package unix
-
-import "core:c"
-
-pthread_t             :: distinct rawptr
-pthread_attr_t        :: distinct rawptr
-pthread_mutex_t       :: distinct rawptr
-pthread_mutexattr_t   :: distinct rawptr
-pthread_cond_t        :: distinct rawptr
-pthread_condattr_t    :: distinct rawptr
-pthread_rwlock_t      :: distinct rawptr
-pthread_rwlockattr_t  :: distinct rawptr
-pthread_barrier_t     :: distinct rawptr
-pthread_barrierattr_t :: distinct rawptr
-pthread_spinlock_t    :: distinct rawptr
-
-pthread_key_t  :: distinct c.int
-pthread_once_t :: struct {
-	state: c.int,
-	mutex: pthread_mutex_t,
-}
-
-PTHREAD_MUTEX_ERRORCHECK :: 1
-PTHREAD_MUTEX_RECURSIVE  :: 2
-PTHREAD_MUTEX_NORMAL     :: 3
-PTHREAD_MUTEX_STRICT_NP  :: 4
-
-PTHREAD_DETACHED      :: 0x1
-PTHREAD_SCOPE_SYSTEM  :: 0x2
-PTHREAD_INHERIT_SCHED :: 0x4
-PTHREAD_NOFLOAT       :: 0x8
-
-PTHREAD_CREATE_DETACHED :: PTHREAD_DETACHED
-PTHREAD_CREATE_JOINABLE :: 0
-PTHREAD_SCOPE_PROCESS   :: 0
-PTHREAD_EXPLICIT_SCHED  :: 0
-
-SCHED_FIFO  :: 1
-SCHED_OTHER :: 2
-SCHED_RR    :: 3
-
-sched_param :: struct {
-	sched_priority: c.int,
-}
-
-sem_t :: distinct rawptr
-
-PTHREAD_CANCEL_ENABLE       :: 0
-PTHREAD_CANCEL_DISABLE      :: 1
-PTHREAD_CANCEL_DEFERRED     :: 0
-PTHREAD_CANCEL_ASYNCHRONOUS :: 2
-
-foreign import libc "system:c"
-
-@(default_calling_convention="c")
-foreign libc {
-	sem_open :: proc(name: cstring, flags: c.int) -> ^sem_t ---
-
-	sem_init :: proc(sem: ^sem_t, pshared: c.int, initial_value: c.uint) -> c.int ---
-	sem_destroy :: proc(sem: ^sem_t) -> c.int ---
-	sem_post :: proc(sem: ^sem_t) -> c.int ---
-	sem_wait :: proc(sem: ^sem_t) -> c.int ---
-	sem_trywait :: proc(sem: ^sem_t) -> c.int ---
-	//sem_timedwait :: proc(sem: ^sem_t, timeout: time.TimeSpec) -> c.int ---
-
-	// NOTE: unclear whether pthread_yield is well-supported on Linux systems,
-	// see https://linux.die.net/man/3/pthread_yield
-	pthread_yield :: proc() ---
-
-	pthread_setcancelstate :: proc (state: c.int, old_state: ^c.int) -> c.int ---
-	pthread_setcanceltype  :: proc (type:  c.int, old_type:  ^c.int) -> c.int ---
-	pthread_cancel         :: proc (thread: pthread_t) -> c.int ---
-}

core/sys/unix/pthread_unix.odin

@@ -1,127 +0,0 @@
-#+build linux, darwin, freebsd, openbsd, netbsd, haiku
-package unix
-
-foreign import "system:pthread"
-
-import "core:c"
-
-timespec :: struct {
-	tv_sec:  i64,
-	tv_nsec: i64,
-}
-
-//
-// On success, these functions return 0.
-//
-
-@(default_calling_convention="c")
-foreign pthread {
-	pthread_create :: proc(t: ^pthread_t, attrs: ^pthread_attr_t, routine: proc(data: rawptr) -> rawptr, arg: rawptr) -> c.int ---
-
-	// retval is a pointer to a location to put the return value of the thread proc.
-	pthread_join :: proc(t: pthread_t, retval: ^rawptr) -> c.int ---
-
-	pthread_kill :: proc(t: pthread_t, sig: c.int) -> c.int ---
-
-	pthread_self :: proc() -> pthread_t ---
-
-	pthread_equal :: proc(a, b: pthread_t) -> b32 ---
-
-	pthread_detach :: proc(t: pthread_t) -> c.int ---
-
-	sched_get_priority_min :: proc(policy: c.int) -> c.int ---
-	sched_get_priority_max :: proc(policy: c.int) -> c.int ---
-
-	// NOTE: POSIX says this can fail with OOM.
-	pthread_attr_init :: proc(attrs: ^pthread_attr_t) -> c.int ---
-
-	pthread_attr_destroy :: proc(attrs: ^pthread_attr_t) -> c.int ---
-
-	pthread_attr_getschedparam :: proc(attrs: ^pthread_attr_t, param: ^sched_param) -> c.int ---
-	pthread_attr_setschedparam :: proc(attrs: ^pthread_attr_t, param: ^sched_param) -> c.int ---
-
-	// states: PTHREAD_CREATE_DETACHED, PTHREAD_CREATE_JOINABLE
-	pthread_attr_setdetachstate :: proc(attrs: ^pthread_attr_t, detach_state: c.int) -> c.int ---
-	
-	// NOTE(tetra, 2019-11-06): WARNING: Different systems have different alignment requirements.
-	// For maximum usefulness, use the OS's page size.
-	// ALSO VERY MAJOR WARNING: `stack_ptr` must be the LAST byte of the stack on systems
-	// where the stack grows downwards, which is the common case, so far as I know.
-	// On systems where it grows upwards, give the FIRST byte instead.
-	// ALSO SLIGHTLY LESS MAJOR WARNING: Using this procedure DISABLES automatically-provided
-	// guard pages. If you are using this procedure, YOU must set them up manually.
-	// If you forget to do this, you WILL get stack corruption bugs if you do not EXTREMELY
-	// know what you are doing!
-	pthread_attr_setstack :: proc(attrs: ^pthread_attr_t, stack_ptr: rawptr, stack_size: u64) -> c.int ---
-	pthread_attr_getstack :: proc(attrs: ^pthread_attr_t, stack_ptr: ^rawptr, stack_size: ^u64) -> c.int ---
-
-	pthread_sigmask :: proc(how: c.int, set: rawptr, oldset: rawptr) -> c.int ---
-
-	sched_yield :: proc() -> c.int ---
-}
-
-// NOTE: Unimplemented in Haiku.
-when ODIN_OS != .Haiku {
-	foreign pthread {
-		// scheds: PTHREAD_INHERIT_SCHED, PTHREAD_EXPLICIT_SCHED
-		pthread_attr_setinheritsched :: proc(attrs: ^pthread_attr_t, sched: c.int) -> c.int ---
-
-		pthread_attr_getschedpolicy :: proc(t: ^pthread_attr_t, policy: ^c.int) -> c.int ---
-		pthread_attr_setschedpolicy :: proc(t: ^pthread_attr_t, policy: c.int) -> c.int ---
-	}
-}
-
-@(default_calling_convention="c")
-foreign pthread {
-	// NOTE: POSIX says this can fail with OOM.
-	pthread_cond_init :: proc(cond: ^pthread_cond_t, attrs: ^pthread_condattr_t) -> c.int ---
-
-	pthread_cond_destroy :: proc(cond: ^pthread_cond_t) -> c.int ---
-
-	pthread_cond_signal :: proc(cond: ^pthread_cond_t) -> c.int ---
-
-	// same as signal, but wakes up _all_ threads that are waiting
-	pthread_cond_broadcast :: proc(cond: ^pthread_cond_t) -> c.int ---
-
-
-	// assumes the mutex is pre-locked
-	pthread_cond_wait :: proc(cond: ^pthread_cond_t, mutex: ^pthread_mutex_t) -> c.int ---
-	pthread_cond_timedwait :: proc(cond: ^pthread_cond_t, mutex: ^pthread_mutex_t, timeout: ^timespec) -> c.int ---
-
-	pthread_condattr_init :: proc(attrs: ^pthread_condattr_t) -> c.int ---
-	pthread_condattr_destroy :: proc(attrs: ^pthread_condattr_t) -> c.int ---
-
-	// p-shared = "process-shared" - i.e: is this condition shared among multiple processes?
-	// values: PTHREAD_PROCESS_PRIVATE, PTHREAD_PROCESS_SHARED
-	pthread_condattr_setpshared :: proc(attrs: ^pthread_condattr_t, value: c.int) -> c.int ---
-	pthread_condattr_getpshared :: proc(attrs: ^pthread_condattr_t, result: ^c.int) -> c.int ---
-
-}
-
-@(default_calling_convention="c")
-foreign pthread {
-	// NOTE: POSIX says this can fail with OOM.
-	pthread_mutex_init :: proc(mutex: ^pthread_mutex_t, attrs: ^pthread_mutexattr_t) -> c.int ---
-
-	pthread_mutex_destroy :: proc(mutex: ^pthread_mutex_t) -> c.int ---
-
-	pthread_mutex_trylock :: proc(mutex: ^pthread_mutex_t) -> c.int ---
-
-	pthread_mutex_lock :: proc(mutex: ^pthread_mutex_t) -> c.int ---
-
-	pthread_mutex_timedlock :: proc(mutex: ^pthread_mutex_t, timeout: ^timespec) -> c.int ---
-
-	pthread_mutex_unlock :: proc(mutex: ^pthread_mutex_t) -> c.int ---
-
-
-	pthread_mutexattr_init :: proc(attrs: ^pthread_mutexattr_t) -> c.int ---
-	pthread_mutexattr_destroy :: proc(attrs: ^pthread_mutexattr_t) -> c.int ---
-	pthread_mutexattr_settype :: proc(attrs: ^pthread_mutexattr_t, type: c.int) -> c.int ---
-
-	// p-shared = "process-shared" - i.e: is this mutex shared among multiple processes?
-	// values: PTHREAD_PROCESS_PRIVATE, PTHREAD_PROCESS_SHARED
-	pthread_mutexattr_setpshared :: proc(attrs: ^pthread_mutexattr_t, value: c.int) -> c.int ---
-	pthread_mutexattr_getpshared :: proc(attrs: ^pthread_mutexattr_t, result: ^c.int) -> c.int ---
-
-	pthread_testcancel :: proc () ---
-}

core/sys/unix/unix.odin

@@ -0,0 +1,5 @@
+package unix
+
+import "core:sys/posix"
+
+timespec :: posix.timespec

core/testing/signal_handler_libc.odin

@@ -15,7 +15,7 @@ import "core:c/libc"
 import "core:encoding/ansi"
 import "core:sync"
 import "core:os"
-@require import "core:sys/unix"
+@require import "core:sys/posix"
 
 @(private="file") stop_runner_flag: libc.sig_atomic_t
 
@@ -114,8 +114,8 @@ This is a dire bug and should be reported to the Odin developers.
 				// properly set to PTHREAD_CANCEL_ASYNCHRONOUS.
 				//
 				// The runner would stall after returning from `pthread_cancel`.
-			
-				unix.pthread_testcancel()
+
+				posix.pthread_testcancel()
 			}
 		}
 	}

core/thread/thread_unix.odin

@@ -4,14 +4,14 @@ package thread
 
 import "base:runtime"
 import "core:sync"
-import "core:sys/unix"
+import "core:sys/posix"
 
 _IS_SUPPORTED :: true
 
 // NOTE(tetra): Aligned here because of core/unix/pthread_linux.odin/pthread_t.
 // Also see core/sys/darwin/mach_darwin.odin/semaphore_t.
 Thread_Os_Specific :: struct #align(16) {
-	unix_thread: unix.pthread_t, // NOTE: very large on Darwin, small on Linux.
+	unix_thread: posix.pthread_t, // NOTE: very large on Darwin, small on Linux.
 	start_ok:    sync.Sema,
 }
 //
@@ -23,7 +23,7 @@ _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
 		t := (^Thread)(t)
 
 		// We need to give the thread a moment to start up before we enable cancellation.
-		can_set_thread_cancel_state := unix.pthread_setcancelstate(unix.PTHREAD_CANCEL_ENABLE, nil) == 0
+		can_set_thread_cancel_state := posix.pthread_setcancelstate(.ENABLE, nil) == nil
 
 		t.id = sync.current_thread_id()
 
@@ -37,8 +37,8 @@ _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
 
 		// Enable thread's cancelability.
 		if can_set_thread_cancel_state {
-			unix.pthread_setcanceltype (unix.PTHREAD_CANCEL_ASYNCHRONOUS, nil)
-			unix.pthread_setcancelstate(unix.PTHREAD_CANCEL_ENABLE,       nil)
+			posix.pthread_setcanceltype (.ASYNCHRONOUS, nil)
+			posix.pthread_setcancelstate(.ENABLE,       nil)
 		}
 
 		{
@@ -59,8 +59,8 @@ _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
 		sync.atomic_or(&t.flags, { .Done })
 
 		if .Self_Cleanup in sync.atomic_load(&t.flags) {
-			res := unix.pthread_detach(t.unix_thread)
-			assert_contextless(res == 0)
+			res := posix.pthread_detach(t.unix_thread)
+			assert_contextless(res == nil)
 
 			t.unix_thread = {}
 			// NOTE(ftphikari): It doesn't matter which context 'free' received, right?
@@ -71,19 +71,19 @@ _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
 		return nil
 	}
 
-	attrs: unix.pthread_attr_t
-	if unix.pthread_attr_init(&attrs) != 0 {
+	attrs: posix.pthread_attr_t
+	if posix.pthread_attr_init(&attrs) != nil {
 		return nil // NOTE(tetra, 2019-11-01): POSIX OOM.
 	}
-	defer unix.pthread_attr_destroy(&attrs)
+	defer posix.pthread_attr_destroy(&attrs)
 
 	// NOTE(tetra, 2019-11-01): These only fail if their argument is invalid.
-	res: i32
-	res = unix.pthread_attr_setdetachstate(&attrs, unix.PTHREAD_CREATE_JOINABLE)
-	assert(res == 0)
+	res: posix.Errno
+	res = posix.pthread_attr_setdetachstate(&attrs, .CREATE_JOINABLE)
+	assert(res == nil)
 	when ODIN_OS != .Haiku && ODIN_OS != .NetBSD {
-		res = unix.pthread_attr_setinheritsched(&attrs, unix.PTHREAD_EXPLICIT_SCHED)
-		assert(res == 0)
+		res = posix.pthread_attr_setinheritsched(&attrs, .EXPLICIT_SCHED)
+		assert(res == nil)
 	}
 
 	thread := new(Thread)
@@ -93,26 +93,26 @@ _create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
 	thread.creation_allocator = context.allocator
 
 	// Set thread priority.
-	policy: i32
+	policy: posix.Sched_Policy
 	when ODIN_OS != .Haiku && ODIN_OS != .NetBSD {
-		res = unix.pthread_attr_getschedpolicy(&attrs, &policy)
-		assert(res == 0)
+		res = posix.pthread_attr_getschedpolicy(&attrs, &policy)
+		assert(res == nil)
 	}
-	params: unix.sched_param
-	res = unix.pthread_attr_getschedparam(&attrs, &params)
-	assert(res == 0)
-	low := unix.sched_get_priority_min(policy)
-	high := unix.sched_get_priority_max(policy)
+	params: posix.sched_param
+	res = posix.pthread_attr_getschedparam(&attrs, &params)
+	assert(res == nil)
+	low := posix.sched_get_priority_min(policy)
+	high := posix.sched_get_priority_max(policy)
 	switch priority {
 	case .Normal: // Okay
 	case .Low:  params.sched_priority = low + 1
 	case .High: params.sched_priority = high
 	}
-	res = unix.pthread_attr_setschedparam(&attrs, &params)
-	assert(res == 0)
+	res = posix.pthread_attr_setschedparam(&attrs, &params)
+	assert(res == nil)
 
 	thread.procedure = procedure
-	if unix.pthread_create(&thread.unix_thread, &attrs, __unix_thread_entry_proc, thread) != 0 {
+	if posix.pthread_create(&thread.unix_thread, &attrs, __unix_thread_entry_proc, thread) != nil {
 		free(thread, thread.creation_allocator)
 		return nil
 	}
@@ -130,7 +130,7 @@ _is_done :: proc(t: ^Thread) -> bool {
 }
 
 _join :: proc(t: ^Thread) {
-	if unix.pthread_equal(unix.pthread_self(), t.unix_thread) {
+	if posix.pthread_equal(posix.pthread_self(), t.unix_thread) {
 		return
 	}
 
@@ -144,7 +144,7 @@ _join :: proc(t: ^Thread) {
 	if .Started not_in sync.atomic_load(&t.flags) {
 		_start(t)
 	}
-	unix.pthread_join(t.unix_thread, nil)
+	posix.pthread_join(t.unix_thread, nil)
 }
 
 _join_multiple :: proc(threads: ..^Thread) {
@@ -170,9 +170,9 @@ _terminate :: proc(t: ^Thread, exit_code: int) {
 	//
 	// This is in contrast to behavior I have seen on Linux where the thread is
 	// just terminated.
-	unix.pthread_cancel(t.unix_thread)
+	posix.pthread_cancel(t.unix_thread)
 }
 
 _yield :: proc() {
-	unix.sched_yield()
+	posix.sched_yield()
 }