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opt / td-agent / embedded / lib / ruby / gems / 2.4.0 / gems / ffi-1.11.1 / ext / ffi_c /

📁 ..
📄 .sitearchdir.time(0 B)
📄 AbstractMemory.c(35.73 KB)
📄 AbstractMemory.h(5.15 KB)
📄 ArrayType.c(4.76 KB)
📄 ArrayType.h(2.04 KB)
📄 Buffer.c(10.79 KB)
📄 Call.c(15.69 KB)
📄 Call.h(3.57 KB)
📄 ClosurePool.c(7.01 KB)
📄 ClosurePool.h(2.46 KB)
📄 DynamicLibrary.c(9.98 KB)
📄 DynamicLibrary.h(2.76 KB)
📄 Function.c(26.25 KB)
📄 Function.h(2.76 KB)
📄 FunctionInfo.c(9 KB)
📄 LastError.c(5.42 KB)
📄 LastError.h(1.83 KB)
📄 LongDouble.c(1.71 KB)
📄 LongDouble.h(1.92 KB)
📄 Makefile(9 KB)
📄 MappedType.c(5.11 KB)
📄 MappedType.h(1.98 KB)
📄 MemoryPointer.c(6.1 KB)
📄 MemoryPointer.h(2.11 KB)
📄 MethodHandle.c(9.45 KB)
📄 MethodHandle.h(2.13 KB)
📄 Platform.c(2.94 KB)
📄 Platform.h(1.81 KB)
📄 Pointer.c(13.82 KB)
📄 Pointer.h(2.2 KB)
📄 Struct.c(22.18 KB)
📄 Struct.h(3.35 KB)
📄 StructByValue.c(4.42 KB)
📄 StructByValue.h(2 KB)
📄 StructLayout.c(20.77 KB)
📄 Thread.c(3.67 KB)
📄 Thread.h(2.43 KB)
📄 Type.c(10.34 KB)
📄 Type.h(1.99 KB)
📄 Types.c(5.03 KB)
📄 Types.h(2.77 KB)
📄 Variadic.c(9.57 KB)
📄 compat.h(2.46 KB)
📄 extconf.h(329 B)
📄 extconf.rb(3.02 KB)
📄 ffi.c(3.19 KB)
📄 ffi_c.so(590.41 KB)
📁 libffi
📄 libffi.bsd.mk(1.07 KB)
📄 libffi.darwin.mk(3.17 KB)
📄 libffi.gnu.mk(848 B)
📄 libffi.mk(535 B)
📄 libffi.vc.mk(568 B)
📄 libffi.vc64.mk(570 B)
📄 rbffi.h(2.16 KB)
📄 rbffi_endian.h(1.37 KB)
📁 win32

Editing: LastError.c

/*
 * Copyright (c) 2008, 2009, Wayne Meissner
 * Copyright (C) 2009 Aman Gupta <aman@tmm1.net>
 *
 * Copyright (c) 2008-2013, Ruby FFI project contributors
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Ruby FFI project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _MSC_VER
# include <sys/param.h>
#endif
#include <sys/types.h>
#include <stdio.h>
#ifndef _MSC_VER
# include <stdint.h>
# include <stdbool.h>
#else
# include "win32/stdbool.h"
#endif
#include <errno.h>
#include <ruby.h>

#include "LastError.h"

#if defined(HAVE_NATIVETHREAD) && !defined(_WIN32) && !defined(__WIN32__)
# include <pthread.h>
# define USE_PTHREAD_LOCAL
#endif

#if defined(__CYGWIN__)
typedef uint32_t DWORD;
DWORD __stdcall GetLastError(void);
void __stdcall SetLastError(DWORD);
#endif

typedef struct ThreadData {
    int td_errno;
#if defined(_WIN32) || defined(__CYGWIN__)
    DWORD td_winapi_errno;
#endif
} ThreadData;

#if defined(USE_PTHREAD_LOCAL)
static pthread_key_t threadDataKey;
#endif

static inline ThreadData* thread_data_get(void);

#if defined(USE_PTHREAD_LOCAL)

static ThreadData*
thread_data_init(void)
{
    ThreadData* td = xcalloc(1, sizeof(ThreadData));

pthread_setspecific(threadDataKey, td);

return td;
}

static inline ThreadData*
thread_data_get(void)
{
    ThreadData* td = pthread_getspecific(threadDataKey);
    return td != NULL ? td : thread_data_init();
}

static void
thread_data_free(void *ptr)
{
    xfree(ptr);
}

#else
static ID id_thread_data;

static ThreadData*
thread_data_init(void)
{
    ThreadData* td;
    VALUE obj;

obj = Data_Make_Struct(rb_cObject, ThreadData, NULL, -1, td);
    rb_thread_local_aset(rb_thread_current(), id_thread_data, obj);

return td;
}

static inline ThreadData*
thread_data_get()
{
    VALUE obj = rb_thread_local_aref(rb_thread_current(), id_thread_data);

if (obj != Qnil && TYPE(obj) == T_DATA) {
        return (ThreadData *) DATA_PTR(obj);
    }

return thread_data_init();
}

#endif

/*
 * call-seq: error
 * @return [Numeric]
 * Get +errno+ value.
 */
static VALUE
get_last_error(VALUE self)
{
    return INT2NUM(thread_data_get()->td_errno);
}

#if defined(_WIN32) || defined(__CYGWIN__)
/*
 * call-seq: winapi_error
 * @return [Numeric]
 * Get +GetLastError()+ value. Only Windows or Cygwin.
 */
static VALUE
get_last_winapi_error(VALUE self)
{
    return INT2NUM(thread_data_get()->td_winapi_errno);
}
#endif

/*
 * call-seq: error(error)
 * @param [Numeric] error
 * @return [nil]
 * Set +errno+ value.
 */
static VALUE
set_last_error(VALUE self, VALUE error)
{

#ifdef _WIN32
    SetLastError(NUM2INT(error));
#else
    errno = NUM2INT(error);
#endif

return Qnil;
}

#if defined(_WIN32) || defined(__CYGWIN__)
/*
 * call-seq: error(error)
 * @param [Numeric] error
 * @return [nil]
 * Set +GetLastError()+ value. Only on Windows and Cygwin.
 */
static VALUE
set_last_winapi_error(VALUE self, VALUE error)
{
    SetLastError(NUM2INT(error));
    return Qnil;
}
#endif

void
rbffi_save_errno(void)
{
    int error = 0;
#ifdef _WIN32
    error = GetLastError();
#else
    error = errno;
#endif

#if defined(_WIN32) || defined(__CYGWIN__)
    DWORD winapi_error = GetLastError();
    thread_data_get()->td_winapi_errno = winapi_error;
#endif

thread_data_get()->td_errno = error;
}

void
rbffi_LastError_Init(VALUE moduleFFI)
{
    /*
     * Document-module: FFI::LastError
     * This module defines a couple of method to set and get +errno+
     * for current thread.
     */
    VALUE moduleError = rb_define_module_under(moduleFFI, "LastError");

rb_define_module_function(moduleError, "error", get_last_error, 0);
    rb_define_module_function(moduleError, "error=", set_last_error, 1);

#if defined(_WIN32) || defined(__CYGWIN__)
    rb_define_module_function(moduleError, "winapi_error", get_last_winapi_error, 0);
    rb_define_module_function(moduleError, "winapi_error=", set_last_winapi_error, 1);
#endif

#if defined(USE_PTHREAD_LOCAL)
    pthread_key_create(&threadDataKey, thread_data_free);
#else
    id_thread_data = rb_intern("ffi_thread_local_data");
#endif /* USE_PTHREAD_LOCAL */
}

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Editing: LastError.c

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