/usr/lib/erlang/erts-9.2/include/internal/ethread.h is in erlang-dev 1:20.2.2+dfsg-1ubuntu2.
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* %CopyrightBegin%
*
* Copyright Ericsson AB 2004-2017. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
/*
* Description: Thread library for use in the ERTS and other OTP
* applications.
* Author: Rickard Green
*/
#ifndef ETHREAD_H__
#define ETHREAD_H__
#ifndef ETHR_HAVE_ETHREAD_DEFINES
# include "ethread_header_config.h"
#endif
#include <stdlib.h>
#include "ethread_inline.h"
#include "erl_errno.h"
#if defined(DEBUG)
# define ETHR_DEBUG
#endif
#if defined(__PPC__) || defined (__POWERPC)
/* OSE compiler should be fixed! */
#define __ppc__
#endif
#if defined(ETHR_DEBUG)
# undef ETHR_XCHK
# define ETHR_XCHK 1
#else
# ifndef ETHR_XCHK
# define ETHR_XCHK 0
# endif
#endif
#if defined(ETHR_DEBUG) || !defined(ETHR_INLINE) || ETHR_XCHK \
|| (defined(__GNUC__) && defined(ERTS_MIXED_CYGWIN_VC)) \
|| (defined(__GNUC__) && defined(ERTS_MIXED_MSYS_VC))
# undef ETHR_INLINE
# define ETHR_INLINE
# undef ETHR_FORCE_INLINE
# define ETHR_FORCE_INLINE
# undef ETHR_TRY_INLINE_FUNCS
#endif
/* Assume 64-byte cache line size */
#define ETHR_CACHE_LINE_SIZE ASSUMED_CACHE_LINE_SIZE
#define ETHR_CACHE_LINE_MASK (ETHR_CACHE_LINE_SIZE - 1)
#define ETHR_CACHE_LINE_ALIGN_SIZE(SZ) \
(((((SZ) - 1) / ETHR_CACHE_LINE_SIZE) + 1) * ETHR_CACHE_LINE_SIZE)
#ifndef ETHR_INLINE_FUNC_NAME_
# define ETHR_INLINE_FUNC_NAME_(X) X
#endif
#if !defined(__func__)
# if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
# if !defined(__GNUC__) || __GNUC__ < 2
# define __func__ "[unknown_function]"
# else
# define __func__ __FUNCTION__
# endif
# endif
#endif
int ethr_assert_failed(const char *file, int line, const char *func, char *a);
#ifdef ETHR_DEBUG
#define ETHR_ASSERT(A) \
((void) ((A) ? 1 : ethr_assert_failed(__FILE__, __LINE__, __func__, #A)))
#else
#define ETHR_ASSERT(A) ((void) 1)
#endif
#if defined(__GNUC__)
# define ETHR_PROTO_NORETURN__ void __attribute__((noreturn))
# define ETHR_IMPL_NORETURN__ void
#elif defined(__WIN32__) && defined(_MSC_VER)
# define ETHR_PROTO_NORETURN__ __declspec(noreturn) void
# define ETHR_IMPL_NORETURN__ __declspec(noreturn) void
#else
# define ETHR_PROTO_NORETURN__ void
# define ETHR_IMPL_NORETURN__ void
#endif
#if defined(ETHR_PTHREADS)
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* The pthread implementation *
\* */
#if defined(__linux__) && !defined(_GNU_SOURCE)
#error "_GNU_SOURCE not defined. Please, compile all files with -D_GNU_SOURCE."
#endif
#ifdef ETHR_HAVE_PTHREAD_SETNAME_NP_1
#define _DARWIN_C_SOURCE
#endif
#if defined(ETHR_NEED_NPTL_PTHREAD_H)
#include <nptl/pthread.h>
#elif defined(ETHR_HAVE_MIT_PTHREAD_H)
#include <pthread/mit/pthread.h>
#elif defined(ETHR_HAVE_PTHREAD_H)
#include <pthread.h>
#endif
/* Types */
typedef pthread_t ethr_tid;
typedef pthread_key_t ethr_tsd_key;
#define ETHR_HAVE_ETHR_SIG_FUNCS 1
#if defined(PURIFY) || defined(VALGRIND)
# define ETHR_FORCE_PTHREAD_RWLOCK
# define ETHR_FORCE_PTHREAD_MUTEX
#endif
#if !defined(ETHR_FORCE_PTHREAD_RWLOCK)
# define ETHR_USE_OWN_RWMTX_IMPL__
#endif
#if !defined(ETHR_FORCE_PTHREAD_MUTEX) && 0
# define ETHR_USE_OWN_MTX_IMPL__
#endif
#elif defined(ETHR_WIN32_THREADS)
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* The native win32 threads implementation *
\* */
#if !defined(_WIN32_WINNT)
#error "_WIN32_WINNT not defined. Please, compile all files with -D_WIN32_WINNT=0x0403"
#elif _WIN32_WINNT < 0x0403
#error "_WIN32_WINNT defined to a value less than 0x0403. Please, compile all files with -D_WIN32_WINNT=0x0403"
#endif
#ifdef WIN32_LEAN_AND_MEAN
# define ETHR_WIN32_LEAN_AND_MEAN_ALREADY_DEFINED
#else
# define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#ifndef ETHR_WIN32_LEAN_AND_MEAN_ALREADY_DEFINED
# undef WIN32_LEAN_AND_MEAN
#endif
#if defined(_MSC_VER)
#if ETHR_SIZEOF_LONG == 4
#define ETHR_HAVE_INT32_T 1
typedef long ethr_sint32_t;
typedef unsigned long ethr_uint32_t;
#endif
#if ETHR_SIZEOF___INT64 == 8
#define ETHR_HAVE_INT64_T 1
typedef __int64 ethr_sint64_t;
typedef unsigned __int64 ethr_uint64_t;
#endif
#endif
struct ethr_join_data_;
/* Types */
typedef struct {
long id;
struct ethr_join_data_ *jdata;
} ethr_tid; /* thread id type */
typedef DWORD ethr_tsd_key;
#undef ETHR_HAVE_ETHR_SIG_FUNCS
#define ETHR_USE_OWN_RWMTX_IMPL__
#define ETHR_YIELD() (Sleep(0), 0)
#else /* No supported thread lib found */
#ifdef ETHR_NO_SUPP_THR_LIB_NOT_FATAL
#define ETHR_NO_THREAD_LIB
#else
#error "No supported thread lib found"
#endif
#endif
#ifndef ETHR_HAVE_INT32_T
#if ETHR_SIZEOF_INT == 4
#define ETHR_HAVE_INT32_T 1
typedef int ethr_sint32_t;
typedef unsigned int ethr_uint32_t;
#elif ETHR_SIZEOF_LONG == 4
#define ETHR_HAVE_INT32_T 1
typedef long ethr_sint32_t;
typedef unsigned long ethr_uint32_t;
#endif
#endif
#ifndef ETHR_HAVE_INT64_T
#if ETHR_SIZEOF_INT == 8
#define ETHR_HAVE_INT64_T 1
typedef int ethr_sint64_t;
typedef unsigned int ethr_uint64_t;
#elif ETHR_SIZEOF_LONG == 8
#define ETHR_HAVE_INT64_T 1
typedef long ethr_sint64_t;
typedef unsigned long ethr_uint64_t;
#elif ETHR_SIZEOF_LONG_LONG == 8
#define ETHR_HAVE_INT64_T 1
typedef long long ethr_sint64_t;
typedef unsigned long long ethr_uint64_t;
#endif
#endif
#if ETHR_SIZEOF_PTR == 4
#ifndef ETHR_HAVE_INT32_T
#error "No 32-bit integer type found"
#endif
typedef ethr_sint32_t ethr_sint_t;
typedef ethr_uint32_t ethr_uint_t;
#elif ETHR_SIZEOF_PTR == 8
#ifndef ETHR_HAVE_INT64_T
#error "No 64-bit integer type found"
#endif
typedef ethr_sint64_t ethr_sint_t;
typedef ethr_uint64_t ethr_uint_t;
#endif
#if defined(ETHR_SIZEOF___INT128_T) && ETHR_SIZEOF___INT128_T == 16
#define ETHR_HAVE_INT128_T
typedef __int128_t ethr_sint128_t;
typedef __uint128_t ethr_uint128_t;
#endif
#define ETHR_FATAL_ERROR__(ERR) \
ethr_fatal_error__(__FILE__, __LINE__, __func__, (ERR))
ETHR_PROTO_NORETURN__ ethr_fatal_error__(const char *file,
int line,
const char *func,
int err);
#if !ETHR_AT_LEAST_GCC_VSN__(2, 96, 0)
#define __builtin_expect(X, Y) (X)
#endif
#if ETHR_AT_LEAST_GCC_VSN__(3, 1, 1)
# define ETHR_CHOOSE_EXPR __builtin_choose_expr
#else
# define ETHR_CHOOSE_EXPR(B, E1, E2) ((B) ? (E1) : (E2))
#endif
#if ((defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))) \
|| (defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_AMD64))))
# define ETHR_X86_RUNTIME_CONF__
# define ETHR_X86_RUNTIME_CONF_HAVE_META(feature) \
(__builtin_expect(ethr_runtime__.conf.have_##feature != 0, 1))
# define ETHR_X86_RUNTIME_CONF_HAVE_NO_META(feature) \
(__builtin_expect(ethr_runtime__.conf.have_##feature == 0, 0))
# define ETHR_X86_RUNTIME_CONF_HAVE_DW_CMPXCHG__ \
ETHR_X86_RUNTIME_CONF_HAVE_META(dw_cmpxchg)
# define ETHR_X86_RUNTIME_CONF_HAVE_NO_DW_CMPXCHG__ \
ETHR_X86_RUNTIME_CONF_HAVE_NO_META(dw_cmpxchg)
# define ETHR_X86_RUNTIME_CONF_HAVE_SSE2__ \
ETHR_X86_RUNTIME_CONF_HAVE_META(sse2)
# define ETHR_X86_RUNTIME_CONF_HAVE_NO_SSE2__ \
ETHR_X86_RUNTIME_CONF_HAVE_NO_META(sse2)
# define ETHR_X86_RUNTIME_CONF_HAVE_RDTSCP__ \
ETHR_X86_RUNTIME_CONF_HAVE_META(rdtscp)
# define ETHR_X86_RUNTIME_CONF_HAVE_NO_RDTSCP__ \
ETHR_X86_RUNTIME_CONF_HAVE_NO_META(rdtscp)
# define ETHR_X86_RUNTIME_CONF_HAVE_CONSTANT_TSC__ \
ETHR_X86_RUNTIME_CONF_HAVE_META(constant_tsc)
# define ETHR_X86_RUNTIME_CONF_HAVE_NO_CONSTANT_TSC__ \
ETHR_X86_RUNTIME_CONF_HAVE_NO_META(nonstop_tsc)
# define ETHR_X86_RUNTIME_CONF_HAVE_NONSTOP_TSC__ \
ETHR_X86_RUNTIME_CONF_HAVE_META(nonstop_tsc)
# define ETHR_X86_RUNTIME_CONF_HAVE_NO_NONSTOP_TSC__ \
ETHR_X86_RUNTIME_CONF_HAVE_NO_META(nonstop_tsc)
# define ETHR_X86_RUNTIME_CONF_HAVE_TSC_RELIABLE__ \
ETHR_X86_RUNTIME_CONF_HAVE_META(tsc_reliable)
# define ETHR_X86_RUNTIME_CONF_HAVE_NO_TSC_RELIABLE_TSC__ \
ETHR_X86_RUNTIME_CONF_HAVE_NO_META(tsc_reliable)
# define ETHR_X86_RUNTIME_CONF_HAVE_NONSTOP_TSC_S3__ \
ETHR_X86_RUNTIME_CONF_HAVE_META(nonstop_tsc_s3)
# define ETHR_X86_RUNTIME_CONF_HAVE_NO_NONSTOP_TSC_S3__ \
ETHR_X86_RUNTIME_CONF_HAVE_NO_META(nonstop_tsc_s3)
#endif
#if (defined(__GNUC__) \
&& !defined(ETHR_PPC_HAVE_LWSYNC) \
&& !defined(ETHR_PPC_HAVE_NO_LWSYNC) \
&& (defined(__powerpc__) || defined(__ppc__) || defined(__powerpc64__)))
# define ETHR_PPC_RUNTIME_CONF__
# define ETHR_PPC_RUNTIME_CONF_HAVE_LWSYNC__ \
(__builtin_expect(ethr_runtime__.conf.have_lwsync != 0, 1))
# define ETHR_PPC_RUNTIME_CONF_HAVE_NO_LWSYNC__ \
(__builtin_expect(ethr_runtime__.conf.have_lwsync == 0, 0))
#endif
typedef struct {
#if defined(ETHR_X86_RUNTIME_CONF__)
int have_dw_cmpxchg;
int have_sse2;
int have_rdtscp;
int have_constant_tsc;
int have_tsc_reliable;
int have_nonstop_tsc;
int have_nonstop_tsc_s3;
#endif
#if defined(ETHR_PPC_RUNTIME_CONF__)
int have_lwsync;
#endif
int dummy;
} ethr_runtime_conf_t;
typedef union {
ethr_runtime_conf_t conf;
char pad__[ETHR_CACHE_LINE_ALIGN_SIZE(sizeof(ethr_runtime_conf_t))+ETHR_CACHE_LINE_SIZE];
} ethr_runtime_t;
extern ethr_runtime_t ethr_runtime__;
/* For native CPU-optimised atomics, spinlocks, and rwlocks. */
#if !defined(ETHR_DISABLE_NATIVE_IMPLS)
# if defined(__GNUC__)
# if defined(ETHR_PREFER_GCC_NATIVE_IMPLS)
# include "gcc/ethread.h"
# elif defined(ETHR_PREFER_LIBATOMIC_OPS_NATIVE_IMPLS)
# include "libatomic_ops/ethread.h"
# endif
# if !defined(ETHR_HAVE_NATIVE_ATOMIC32) && !defined(ETHR_HAVE_NATIVE_ATOMIC64)
# if ETHR_SIZEOF_PTR == 4
# if defined(__i386__)
# include "i386/ethread.h"
# elif (defined(__powerpc__)||defined(__ppc__))&&!defined(__powerpc64__)
# include "ppc32/ethread.h"
# elif defined(__sparc__)
# include "sparc32/ethread.h"
# elif defined(__tile__)
# include "tile/ethread.h"
# endif
# elif ETHR_SIZEOF_PTR == 8
# if defined(__x86_64__)
# include "x86_64/ethread.h"
# elif defined(__sparc__) && defined(__arch64__)
# include "sparc64/ethread.h"
# endif
# endif
# if ETHR_HAVE_GCC___ATOMIC_BUILTINS
# include "gcc/ethread.h"
# endif
# include "libatomic_ops/ethread.h"
# include "gcc/ethread.h"
# endif
# elif defined(ETHR_HAVE_LIBATOMIC_OPS)
# include "libatomic_ops/ethread.h"
# elif defined(ETHR_WIN32_THREADS)
# include "win/ethread.h"
# endif
#endif /* !ETHR_DISABLE_NATIVE_IMPLS */
#if !defined(ETHR_HAVE_NATIVE_ATOMIC32) && !defined(ETHR_HAVE_NATIVE_ATOMIC64) && !defined(ETHR_DISABLE_NATIVE_IMPLS) && defined(ETHR_SMP_REQUIRE_NATIVE_IMPLS)
#error "No native ethread implementation found. If you want to use fallbacks you have to disable native ethread support with configure."
#endif
#include "ethr_atomics.h" /* The atomics API */
#if defined(__GNUC__)
# ifndef ETHR_SPIN_BODY
# if defined(__i386__) || defined(__x86_64__)
# define ETHR_SPIN_BODY __asm__ __volatile__("rep;nop" : : : "memory")
# elif defined(__ia64__)
# define ETHR_SPIN_BODY __asm__ __volatile__("hint @pause" : : : "memory")
# elif defined(__sparc__)
# define ETHR_SPIN_BODY __asm__ __volatile__("membar #LoadLoad")
# else
# define ETHR_SPIN_BODY ETHR_COMPILER_BARRIER
# endif
# endif
#elif defined(ETHR_WIN32_THREADS)
# ifndef ETHR_SPIN_BODY
# define ETHR_SPIN_BODY do {YieldProcessor();ETHR_COMPILER_BARRIER;} while(0)
# endif
#endif
#define ETHR_YIELD_AFTER_BUSY_LOOPS 50
#ifndef ETHR_SPIN_BODY
# define ETHR_SPIN_BODY ETHR_COMPILER_BARRIER
#endif
#ifndef ETHR_YIELD
# if defined(ETHR_HAVE_SCHED_YIELD)
# ifdef ETHR_HAVE_SCHED_H
# include <sched.h>
# endif
# include <errno.h>
# if defined(ETHR_SCHED_YIELD_RET_INT)
# define ETHR_YIELD() (sched_yield() < 0 ? errno : 0)
# else
# define ETHR_YIELD() (sched_yield(), 0)
# endif
# elif defined(ETHR_HAVE_PTHREAD_YIELD)
# if defined(ETHR_PTHREAD_YIELD_RET_INT)
# define ETHR_YIELD() pthread_yield()
# else
# define ETHR_YIELD() (pthread_yield(), 0)
# endif
# else
# define ETHR_YIELD() (ethr_compiler_barrier(), 0)
# endif
#endif
#if defined(VALGRIND)
/* mutex as fallback for spinlock for VALGRIND. */
# undef ETHR_HAVE_NATIVE_SPINLOCKS
# undef ETHR_HAVE_NATIVE_RWSPINLOCKS
#else
# include "ethr_optimized_fallbacks.h"
#endif
typedef struct {
void *(*thread_create_prepare_func)(void);
void (*thread_create_parent_func)(void *);
void (*thread_create_child_func)(void *);
} ethr_init_data;
#define ETHR_INIT_DATA_DEFAULT_INITER {NULL, NULL, NULL}
typedef struct {
void *(*alloc)(size_t);
void *(*realloc)(void *, size_t);
void (*free)(void *);
} ethr_memory_allocator;
#define ETHR_MEM_ALLOC_DEF_INITER__ {NULL, NULL, NULL}
typedef struct {
ethr_memory_allocator std;
ethr_memory_allocator sl;
ethr_memory_allocator ll;
} ethr_memory_allocators;
#define ETHR_MEM_ALLOCS_DEF_INITER__ \
{ETHR_MEM_ALLOC_DEF_INITER__, \
ETHR_MEM_ALLOC_DEF_INITER__, \
ETHR_MEM_ALLOC_DEF_INITER__}
typedef struct {
ethr_memory_allocators mem;
int reader_groups;
int main_threads;
} ethr_late_init_data;
#define ETHR_LATE_INIT_DATA_DEFAULT_INITER \
{ETHR_MEM_ALLOCS_DEF_INITER__, 0, 0}
typedef struct {
int detached; /* boolean (default false) */
int suggested_stack_size; /* kilo words (default sys dependent) */
char *name; /* max 14 char long (default no-name) */
} ethr_thr_opts;
#define ETHR_THR_OPTS_DEFAULT_INITER {0, -1, NULL}
#if !defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_AUX_IMPL__)
# define ETHR_NEED_SPINLOCK_PROTOTYPES__
# define ETHR_NEED_RWSPINLOCK_PROTOTYPES__
#endif
int ethr_init(ethr_init_data *);
int ethr_late_init(ethr_late_init_data *);
int ethr_install_exit_handler(void (*funcp)(void));
int ethr_thr_create(ethr_tid *, void * (*)(void *), void *, ethr_thr_opts *);
int ethr_thr_join(ethr_tid, void **);
int ethr_thr_detach(ethr_tid);
void ethr_thr_exit(void *);
ethr_tid ethr_self(void);
int ethr_getname(ethr_tid, char *, size_t);
void ethr_setname(char *);
int ethr_equal_tids(ethr_tid, ethr_tid);
int ethr_tsd_key_create(ethr_tsd_key *,char *);
int ethr_tsd_key_delete(ethr_tsd_key);
int ethr_tsd_set(ethr_tsd_key, void *);
void *ethr_tsd_get(ethr_tsd_key);
void *ethr_get_stacklimit(void);
int ethr_set_stacklimit(void *limit);
#ifdef ETHR_HAVE_ETHR_SIG_FUNCS
#include <signal.h>
int ethr_sigmask(int how, const sigset_t *set, sigset_t *oset);
int ethr_sigwait(const sigset_t *set, int *sig);
int ethr_kill(const ethr_tid tid, const int sig);
#endif
void ethr_compiler_barrier(void);
#if defined(ETHR_HAVE_NATIVE_SPINLOCKS)
typedef ethr_native_spinlock_t ethr_spinlock_t;
#elif defined(__WIN32__)
typedef CRITICAL_SECTION ethr_spinlock_t;
#else
typedef pthread_mutex_t ethr_spinlock_t;
#endif
#ifdef ETHR_NEED_SPINLOCK_PROTOTYPES__
int ethr_spinlock_init(ethr_spinlock_t *);
int ethr_spinlock_destroy(ethr_spinlock_t *);
void ethr_spin_unlock(ethr_spinlock_t *);
void ethr_spin_lock(ethr_spinlock_t *);
#endif
#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_AUX_IMPL__)
static ETHR_INLINE int
ETHR_INLINE_FUNC_NAME_(ethr_spinlock_init)(ethr_spinlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_SPINLOCKS
ethr_native_spinlock_init(lock);
return 0;
#elif defined(__WIN32__)
if (!InitializeCriticalSectionAndSpinCount((CRITICAL_SECTION *) lock, INT_MAX))
return ethr_win_get_errno__();
return 0;
#else
return pthread_mutex_init((pthread_mutex_t *) lock, NULL);
#endif
}
static ETHR_INLINE int
ETHR_INLINE_FUNC_NAME_(ethr_spinlock_destroy)(ethr_spinlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_SPINLOCKS
return ethr_native_spinlock_destroy(lock);
#elif defined(__WIN32__)
DeleteCriticalSection((CRITICAL_SECTION *) lock);
return 0;
#else
return pthread_mutex_destroy((pthread_mutex_t *) lock);
#endif
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_spin_unlock)(ethr_spinlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_SPINLOCKS
ethr_native_spin_unlock(lock);
#elif defined(__WIN32__)
LeaveCriticalSection((CRITICAL_SECTION *) lock);
#else
int err = pthread_mutex_unlock((pthread_mutex_t *) lock);
if (err)
ETHR_FATAL_ERROR__(err);
#endif
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_spin_lock)(ethr_spinlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_SPINLOCKS
ethr_native_spin_lock(lock);
#elif defined(__WIN32__)
EnterCriticalSection((CRITICAL_SECTION *) lock);
#else
int err = pthread_mutex_lock((pthread_mutex_t *) lock);
if (err)
ETHR_FATAL_ERROR__(err);
#endif
}
#endif /* ETHR_TRY_INLINE_FUNCS */
typedef struct ethr_ts_event_ ethr_ts_event; /* Needed by ethr_mutex.h */
#if defined(ETHR_WIN32_THREADS)
# include "win/ethr_event.h"
#elif defined(ETHR_PTHREADS)
# include "pthread/ethr_event.h"
#endif
int ethr_set_main_thr_status(int, int);
int ethr_get_main_thr_status(int *);
struct ethr_ts_event_ {
ethr_ts_event *next;
ethr_ts_event *prev;
ethr_event event;
void *udata;
ethr_atomic32_t uaflgs;
unsigned uflgs;
unsigned iflgs; /* for ethr lib only */
short rgix; /* for ethr lib only */
short mtix; /* for ethr lib only */
};
#define ETHR_TS_EV_ETHREAD (((unsigned) 1) << 0)
#define ETHR_TS_EV_INITED (((unsigned) 1) << 1)
#define ETHR_TS_EV_TMP (((unsigned) 1) << 2)
#define ETHR_TS_EV_MAIN_THR (((unsigned) 1) << 3)
int ethr_get_tmp_ts_event__(ethr_ts_event **tsepp);
int ethr_free_ts_event__(ethr_ts_event *tsep);
int ethr_make_ts_event__(ethr_ts_event **tsepp);
#if !defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHREAD_IMPL__)
ethr_ts_event *ethr_get_ts_event(void);
void ethr_leave_ts_event(ethr_ts_event *);
#endif
#if defined(ETHR_PTHREADS)
#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHREAD_IMPL__)
extern pthread_key_t ethr_ts_event_key__;
static ETHR_INLINE ethr_ts_event *
ETHR_INLINE_FUNC_NAME_(ethr_get_ts_event)(void)
{
ethr_ts_event *tsep = pthread_getspecific(ethr_ts_event_key__);
if (!tsep) {
int res = ethr_make_ts_event__(&tsep);
if (res != 0)
ETHR_FATAL_ERROR__(res);
ETHR_ASSERT(tsep);
}
return tsep;
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_leave_ts_event)(ethr_ts_event *tsep)
{
}
#endif
#elif defined(ETHR_WIN32_THREADS)
#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHREAD_IMPL__)
extern DWORD ethr_ts_event_key__;
static ETHR_INLINE ethr_ts_event *
ETHR_INLINE_FUNC_NAME_(ethr_get_ts_event)(void)
{
ethr_ts_event *tsep = TlsGetValue(ethr_ts_event_key__);
if (!tsep) {
int res = ethr_get_tmp_ts_event__(&tsep);
if (res != 0)
ETHR_FATAL_ERROR__(res);
ETHR_ASSERT(tsep);
}
return tsep;
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_leave_ts_event)(ethr_ts_event *tsep)
{
if (tsep->iflgs & ETHR_TS_EV_TMP) {
int res = ethr_free_ts_event__(tsep);
if (res != 0)
ETHR_FATAL_ERROR__(res);
}
}
#endif
#endif
#include "ethr_mutex.h" /* Need atomic declarations and tse */
#ifdef ETHR_HAVE_NATIVE_RWSPINLOCKS
typedef ethr_native_rwlock_t ethr_rwlock_t;
#else
typedef ethr_rwmutex ethr_rwlock_t;
#endif
#ifdef ETHR_NEED_RWSPINLOCK_PROTOTYPES__
int ethr_rwlock_init(ethr_rwlock_t *);
int ethr_rwlock_destroy(ethr_rwlock_t *);
void ethr_read_unlock(ethr_rwlock_t *);
void ethr_read_lock(ethr_rwlock_t *);
void ethr_write_unlock(ethr_rwlock_t *);
void ethr_write_lock(ethr_rwlock_t *);
#endif
#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_AUX_IMPL__)
static ETHR_INLINE int
ETHR_INLINE_FUNC_NAME_(ethr_rwlock_init)(ethr_rwlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_RWSPINLOCKS
ethr_native_rwlock_init(lock);
return 0;
#else
return ethr_rwmutex_init_opt((ethr_rwmutex *) lock, NULL);
#endif
}
static ETHR_INLINE int
ETHR_INLINE_FUNC_NAME_(ethr_rwlock_destroy)(ethr_rwlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_RWSPINLOCKS
return ethr_native_rwlock_destroy(lock);
#else
return ethr_rwmutex_destroy((ethr_rwmutex *) lock);
#endif
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_read_unlock)(ethr_rwlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_RWSPINLOCKS
ethr_native_read_unlock(lock);
#else
ethr_rwmutex_runlock((ethr_rwmutex *) lock);
#endif
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_read_lock)(ethr_rwlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_RWSPINLOCKS
ethr_native_read_lock(lock);
#else
ethr_rwmutex_rlock((ethr_rwmutex *) lock);
#endif
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_write_unlock)(ethr_rwlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_RWSPINLOCKS
ethr_native_write_unlock(lock);
#else
ethr_rwmutex_rwunlock((ethr_rwmutex *) lock);
#endif
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_write_lock)(ethr_rwlock_t *lock)
{
#ifdef ETHR_HAVE_NATIVE_RWSPINLOCKS
ethr_native_write_lock(lock);
#else
ethr_rwmutex_rwlock((ethr_rwmutex *) lock);
#endif
}
#endif /* ETHR_TRY_INLINE_FUNCS */
#endif /* #ifndef ETHREAD_H__ */
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