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version 1.5.5

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Bert Belder 2019-05-05 05:14:52 +02:00
commit e9bf27c395
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3 changed files with 79 additions and 80 deletions
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2
LICENSE
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@ -1,7 +1,7 @@
wepoll - epoll for Windows wepoll - epoll for Windows
https://github.com/piscisaureus/wepoll https://github.com/piscisaureus/wepoll
Copyright 2012-2018, Bert Belder <bertbelder@gmail.com> Copyright 2012-2019, Bert Belder <bertbelder@gmail.com>
All rights reserved. All rights reserved.
Redistribution and use in source and binary forms, with or without Redistribution and use in source and binary forms, with or without

77
wepoll.c
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@ -2,7 +2,7 @@
* wepoll - epoll for Windows * wepoll - epoll for Windows
* https://github.com/piscisaureus/wepoll * https://github.com/piscisaureus/wepoll
* *
* Copyright 2012-2018, Bert Belder <bertbelder@gmail.com> * Copyright 2012-2019, Bert Belder <bertbelder@gmail.com>
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
@ -35,8 +35,6 @@
#include <stdint.h> #include <stdint.h>
/* clang-format off */
enum EPOLL_EVENTS { enum EPOLL_EVENTS {
EPOLLIN = (int) (1U << 0), EPOLLIN = (int) (1U << 0),
EPOLLPRI = (int) (1U << 1), EPOLLPRI = (int) (1U << 1),
@ -69,8 +67,6 @@ enum EPOLL_EVENTS {
#define EPOLL_CTL_MOD 2 #define EPOLL_CTL_MOD 2
#define EPOLL_CTL_DEL 3 #define EPOLL_CTL_DEL 3
/* clang-format on */
typedef void* HANDLE; typedef void* HANDLE;
typedef uintptr_t SOCKET; typedef uintptr_t SOCKET;
@ -178,11 +174,11 @@ typedef VOID(NTAPI* PIO_APC_ROUTINE)(PVOID ApcContext,
PIO_STATUS_BLOCK IoStatusBlock, PIO_STATUS_BLOCK IoStatusBlock,
ULONG Reserved); ULONG Reserved);
typedef struct _LSA_UNICODE_STRING { typedef struct _UNICODE_STRING {
USHORT Length; USHORT Length;
USHORT MaximumLength; USHORT MaximumLength;
PWSTR Buffer; PWSTR Buffer;
} LSA_UNICODE_STRING, *PLSA_UNICODE_STRING, UNICODE_STRING, *PUNICODE_STRING; } UNICODE_STRING, *PUNICODE_STRING;
#define RTL_CONSTANT_STRING(s) \ #define RTL_CONSTANT_STRING(s) \
{ sizeof(s) - sizeof((s)[0]), sizeof(s), s } { sizeof(s) - sizeof((s)[0]), sizeof(s), s }
@ -203,6 +199,11 @@ typedef struct _OBJECT_ATTRIBUTES {
#define FILE_OPEN 0x00000001UL #define FILE_OPEN 0x00000001UL
#endif #endif
#define KEYEDEVENT_WAIT 0x00000001UL
#define KEYEDEVENT_WAKE 0x00000002UL
#define KEYEDEVENT_ALL_ACCESS \
(STANDARD_RIGHTS_REQUIRED | KEYEDEVENT_WAIT | KEYEDEVENT_WAKE)
#define NT_NTDLL_IMPORT_LIST(X) \ #define NT_NTDLL_IMPORT_LIST(X) \
X(NTSTATUS, \ X(NTSTATUS, \
NTAPI, \ NTAPI, \
@ -219,6 +220,14 @@ typedef struct _OBJECT_ATTRIBUTES {
PVOID EaBuffer, \ PVOID EaBuffer, \
ULONG EaLength)) \ ULONG EaLength)) \
\ \
X(NTSTATUS, \
NTAPI, \
NtCreateKeyedEvent, \
(PHANDLE KeyedEventHandle, \
ACCESS_MASK DesiredAccess, \
POBJECT_ATTRIBUTES ObjectAttributes, \
ULONG Flags)) \
\
X(NTSTATUS, \ X(NTSTATUS, \
NTAPI, \ NTAPI, \
NtDeviceIoControlFile, \ NtDeviceIoControlFile, \
@ -233,25 +242,23 @@ typedef struct _OBJECT_ATTRIBUTES {
PVOID OutputBuffer, \ PVOID OutputBuffer, \
ULONG OutputBufferLength)) \ ULONG OutputBufferLength)) \
\ \
X(ULONG, WINAPI, RtlNtStatusToDosError, (NTSTATUS Status)) \
\
X(NTSTATUS, \ X(NTSTATUS, \
NTAPI, \ NTAPI, \
NtCreateKeyedEvent, \ NtReleaseKeyedEvent, \
(PHANDLE handle, \ (HANDLE KeyedEventHandle, \
ACCESS_MASK access, \ PVOID KeyValue, \
POBJECT_ATTRIBUTES attr, \ BOOLEAN Alertable, \
ULONG flags)) \ PLARGE_INTEGER Timeout)) \
\ \
X(NTSTATUS, \ X(NTSTATUS, \
NTAPI, \ NTAPI, \
NtWaitForKeyedEvent, \ NtWaitForKeyedEvent, \
(HANDLE handle, PVOID key, BOOLEAN alertable, PLARGE_INTEGER mstimeout)) \ (HANDLE KeyedEventHandle, \
PVOID KeyValue, \
BOOLEAN Alertable, \
PLARGE_INTEGER Timeout)) \
\ \
X(NTSTATUS, \ X(ULONG, WINAPI, RtlNtStatusToDosError, (NTSTATUS Status))
NTAPI, \
NtReleaseKeyedEvent, \
(HANDLE handle, PVOID key, BOOLEAN alertable, PLARGE_INTEGER mstimeout))
#define X(return_type, attributes, name, parameters) \ #define X(return_type, attributes, name, parameters) \
WEPOLL_INTERNAL_VAR return_type(attributes* name) parameters; WEPOLL_INTERNAL_VAR return_type(attributes* name) parameters;
@ -267,10 +274,8 @@ typedef intptr_t ssize_t;
#define array_count(a) (sizeof(a) / (sizeof((a)[0]))) #define array_count(a) (sizeof(a) / (sizeof((a)[0])))
/* clang-format off */
#define container_of(ptr, type, member) \ #define container_of(ptr, type, member) \
((type*) ((uintptr_t) (ptr) - offsetof(type, member))) ((type*) ((uintptr_t) (ptr) - offsetof(type, member)))
/* clang-format on */
#define unused_var(v) ((void) (v)) #define unused_var(v) ((void) (v))
@ -279,7 +284,6 @@ typedef intptr_t ssize_t;
#define inline __inline #define inline __inline
#endif #endif
/* clang-format off */
#define AFD_POLL_RECEIVE 0x0001 #define AFD_POLL_RECEIVE 0x0001
#define AFD_POLL_RECEIVE_EXPEDITED 0x0002 #define AFD_POLL_RECEIVE_EXPEDITED 0x0002
#define AFD_POLL_SEND 0x0004 #define AFD_POLL_SEND 0x0004
@ -288,7 +292,6 @@ typedef intptr_t ssize_t;
#define AFD_POLL_LOCAL_CLOSE 0x0020 #define AFD_POLL_LOCAL_CLOSE 0x0020
#define AFD_POLL_ACCEPT 0x0080 #define AFD_POLL_ACCEPT 0x0080
#define AFD_POLL_CONNECT_FAIL 0x0100 #define AFD_POLL_CONNECT_FAIL 0x0100
/* clang-format on */
typedef struct _AFD_POLL_HANDLE_INFO { typedef struct _AFD_POLL_HANDLE_INFO {
HANDLE Handle; HANDLE Handle;
@ -919,7 +922,11 @@ static BOOL CALLBACK init__once_callback(INIT_ONCE* once,
int init(void) { int init(void) {
if (!init__done && if (!init__done &&
!InitOnceExecuteOnce(&init__once, init__once_callback, NULL, NULL)) !InitOnceExecuteOnce(&init__once, init__once_callback, NULL, NULL))
return -1; /* LastError and errno aren't touched InitOnceExecuteOnce. */ /* `InitOnceExecuteOnce()` itself is infallible, and it doesn't set any
* error code when the once-callback returns FALSE. We return -1 here to
* indicate that global initialization failed; the failing init function is
* resposible for setting `errno` and calling `SetLastError()`. */
return -1;
return 0; return 0;
} }
@ -1476,19 +1483,17 @@ bool queue_enqueued(const queue_node_t* node) {
return node->prev != node; return node->prev != node;
} }
/* clang-format off */
static const long REFLOCK__REF = (long) 0x00000001; static const long REFLOCK__REF = (long) 0x00000001;
static const long REFLOCK__REF_MASK = (long) 0x0fffffff; static const long REFLOCK__REF_MASK = (long) 0x0fffffff;
static const long REFLOCK__DESTROY = (long) 0x10000000; static const long REFLOCK__DESTROY = (long) 0x10000000;
static const long REFLOCK__DESTROY_MASK = (long) 0xf0000000; static const long REFLOCK__DESTROY_MASK = (long) 0xf0000000;
static const long REFLOCK__POISON = (long) 0x300DEAD0; static const long REFLOCK__POISON = (long) 0x300dead0;
/* clang-format on */
static HANDLE reflock__keyed_event = NULL; static HANDLE reflock__keyed_event = NULL;
int reflock_global_init(void) { int reflock_global_init(void) {
NTSTATUS status = NTSTATUS status =
NtCreateKeyedEvent(&reflock__keyed_event, ~(ACCESS_MASK) 0, NULL, 0); NtCreateKeyedEvent(&reflock__keyed_event, KEYEDEVENT_ALL_ACCESS, NULL, 0);
if (status != STATUS_SUCCESS) if (status != STATUS_SUCCESS)
return_set_error(-1, RtlNtStatusToDosError(status)); return_set_error(-1, RtlNtStatusToDosError(status));
return 0; return 0;
@ -1514,22 +1519,20 @@ static void reflock__await_event(void* address) {
void reflock_ref(reflock_t* reflock) { void reflock_ref(reflock_t* reflock) {
long state = InterlockedAdd(&reflock->state, REFLOCK__REF); long state = InterlockedAdd(&reflock->state, REFLOCK__REF);
/* Verify that the counter didn't overflow and the lock isn't destroyed. */
assert((state & REFLOCK__DESTROY_MASK) == 0);
unused_var(state); unused_var(state);
assert((state & REFLOCK__DESTROY_MASK) == 0); /* Overflow or destroyed. */
} }
void reflock_unref(reflock_t* reflock) { void reflock_unref(reflock_t* reflock) {
long state = InterlockedAdd(&reflock->state, -REFLOCK__REF); long state = InterlockedAdd(&reflock->state, -REFLOCK__REF);
long ref_count = state & REFLOCK__REF_MASK;
long destroy = state & REFLOCK__DESTROY_MASK;
unused_var(ref_count); /* Verify that the lock was referenced and not already destroyed. */
unused_var(destroy); assert((state & REFLOCK__DESTROY_MASK & ~REFLOCK__DESTROY) == 0);
if (state == REFLOCK__DESTROY) if (state == REFLOCK__DESTROY)
reflock__signal_event(reflock); reflock__signal_event(reflock);
else
assert(destroy == 0 || ref_count > 0);
} }
void reflock_unref_and_destroy(reflock_t* reflock) { void reflock_unref_and_destroy(reflock_t* reflock) {
@ -1537,8 +1540,8 @@ void reflock_unref_and_destroy(reflock_t* reflock) {
InterlockedAdd(&reflock->state, REFLOCK__DESTROY - REFLOCK__REF); InterlockedAdd(&reflock->state, REFLOCK__DESTROY - REFLOCK__REF);
long ref_count = state & REFLOCK__REF_MASK; long ref_count = state & REFLOCK__REF_MASK;
assert((state & REFLOCK__DESTROY_MASK) == /* Verify that the lock was referenced and not already destroyed. */
REFLOCK__DESTROY); /* Underflow or already destroyed. */ assert((state & REFLOCK__DESTROY_MASK) == REFLOCK__DESTROY);
if (ref_count != 0) if (ref_count != 0)
reflock__await_event(reflock); reflock__await_event(reflock);

6
wepoll.h
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@ -2,7 +2,7 @@
* wepoll - epoll for Windows * wepoll - epoll for Windows
* https://github.com/piscisaureus/wepoll * https://github.com/piscisaureus/wepoll
* *
* Copyright 2012-2018, Bert Belder <bertbelder@gmail.com> * Copyright 2012-2019, Bert Belder <bertbelder@gmail.com>
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
@ -38,8 +38,6 @@
#include <stdint.h> #include <stdint.h>
/* clang-format off */
enum EPOLL_EVENTS { enum EPOLL_EVENTS {
EPOLLIN = (int) (1U << 0), EPOLLIN = (int) (1U << 0),
EPOLLPRI = (int) (1U << 1), EPOLLPRI = (int) (1U << 1),
@ -72,8 +70,6 @@ enum EPOLL_EVENTS {
#define EPOLL_CTL_MOD 2 #define EPOLL_CTL_MOD 2
#define EPOLL_CTL_DEL 3 #define EPOLL_CTL_DEL 3
/* clang-format on */
typedef void* HANDLE; typedef void* HANDLE;
typedef uintptr_t SOCKET; typedef uintptr_t SOCKET;