1062 lines
30 KiB
C
1062 lines
30 KiB
C
/*
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*
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* vcomp implementation
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*
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* Copyright 2011 Austin English
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* Copyright 2012 Dan Kegel
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* Copyright 2015 Sebastian Lackner
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdarg.h>
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#include <assert.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wine/debug.h"
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#include "wine/list.h"
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WINE_DEFAULT_DEBUG_CHANNEL(vcomp);
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static struct list vcomp_idle_threads = LIST_INIT(vcomp_idle_threads);
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static DWORD vcomp_context_tls = TLS_OUT_OF_INDEXES;
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static HMODULE vcomp_module;
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static int vcomp_max_threads;
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static int vcomp_num_threads;
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static BOOL vcomp_nested_fork = FALSE;
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static RTL_CRITICAL_SECTION vcomp_section;
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static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &vcomp_section,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": vcomp_section") }
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};
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static RTL_CRITICAL_SECTION vcomp_section = { &critsect_debug, -1, 0, 0, 0, 0 };
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#define VCOMP_DYNAMIC_FLAGS_STATIC 0x01
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#define VCOMP_DYNAMIC_FLAGS_CHUNKED 0x02
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#define VCOMP_DYNAMIC_FLAGS_GUIDED 0x03
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#define VCOMP_DYNAMIC_FLAGS_INCREMENT 0x40
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struct vcomp_thread_data
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{
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struct vcomp_team_data *team;
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struct vcomp_task_data *task;
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int thread_num;
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BOOL parallel;
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int fork_threads;
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/* only used for concurrent tasks */
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struct list entry;
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CONDITION_VARIABLE cond;
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/* single */
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unsigned int single;
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/* section */
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unsigned int section;
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/* dynamic */
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unsigned int dynamic;
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unsigned int dynamic_type;
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unsigned int dynamic_begin;
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unsigned int dynamic_end;
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};
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struct vcomp_team_data
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{
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CONDITION_VARIABLE cond;
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int num_threads;
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int finished_threads;
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/* callback arguments */
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int nargs;
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void *wrapper;
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__ms_va_list valist;
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/* barrier */
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unsigned int barrier;
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int barrier_count;
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};
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struct vcomp_task_data
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{
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/* single */
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unsigned int single;
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/* section */
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unsigned int section;
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int num_sections;
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int section_index;
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/* dynamic */
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unsigned int dynamic;
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unsigned int dynamic_first;
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unsigned int dynamic_last;
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unsigned int dynamic_iterations;
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int dynamic_step;
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unsigned int dynamic_chunksize;
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};
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#if defined(__i386__)
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extern void CDECL _vcomp_fork_call_wrapper(void *wrapper, int nargs, __ms_va_list args);
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__ASM_GLOBAL_FUNC( _vcomp_fork_call_wrapper,
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"pushl %ebp\n\t"
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__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
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__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
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"movl %esp,%ebp\n\t"
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__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
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"pushl %esi\n\t"
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__ASM_CFI(".cfi_rel_offset %esi,-4\n\t")
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"pushl %edi\n\t"
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__ASM_CFI(".cfi_rel_offset %edi,-8\n\t")
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"movl 12(%ebp),%edx\n\t"
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"movl %esp,%edi\n\t"
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"shll $2,%edx\n\t"
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"jz 1f\n\t"
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"subl %edx,%edi\n\t"
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"andl $~15,%edi\n\t"
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"movl %edi,%esp\n\t"
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"movl 12(%ebp),%ecx\n\t"
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"movl 16(%ebp),%esi\n\t"
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"cld\n\t"
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"rep; movsl\n"
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"1:\tcall *8(%ebp)\n\t"
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"leal -8(%ebp),%esp\n\t"
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"popl %edi\n\t"
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__ASM_CFI(".cfi_same_value %edi\n\t")
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"popl %esi\n\t"
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__ASM_CFI(".cfi_same_value %esi\n\t")
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"popl %ebp\n\t"
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__ASM_CFI(".cfi_def_cfa %esp,4\n\t")
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__ASM_CFI(".cfi_same_value %ebp\n\t")
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"ret" )
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#elif defined(__x86_64__)
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extern void CDECL _vcomp_fork_call_wrapper(void *wrapper, int nargs, __ms_va_list args);
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__ASM_GLOBAL_FUNC( _vcomp_fork_call_wrapper,
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"pushq %rbp\n\t"
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__ASM_CFI(".cfi_adjust_cfa_offset 8\n\t")
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__ASM_CFI(".cfi_rel_offset %rbp,0\n\t")
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"movq %rsp,%rbp\n\t"
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__ASM_CFI(".cfi_def_cfa_register %rbp\n\t")
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"pushq %rsi\n\t"
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__ASM_CFI(".cfi_rel_offset %rsi,-8\n\t")
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"pushq %rdi\n\t"
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__ASM_CFI(".cfi_rel_offset %rdi,-16\n\t")
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"movq %rcx,%rax\n\t"
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"movq $4,%rcx\n\t"
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"cmp %rcx,%rdx\n\t"
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"cmovgq %rdx,%rcx\n\t"
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"leaq 0(,%rcx,8),%rdx\n\t"
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"subq %rdx,%rsp\n\t"
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"andq $~15,%rsp\n\t"
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"movq %rsp,%rdi\n\t"
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"movq %r8,%rsi\n\t"
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"rep; movsq\n\t"
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"movq 0(%rsp),%rcx\n\t"
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"movq 8(%rsp),%rdx\n\t"
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"movq 16(%rsp),%r8\n\t"
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"movq 24(%rsp),%r9\n\t"
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"callq *%rax\n\t"
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"leaq -16(%rbp),%rsp\n\t"
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"popq %rdi\n\t"
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__ASM_CFI(".cfi_same_value %rdi\n\t")
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"popq %rsi\n\t"
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__ASM_CFI(".cfi_same_value %rsi\n\t")
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__ASM_CFI(".cfi_def_cfa_register %rsp\n\t")
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"popq %rbp\n\t"
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__ASM_CFI(".cfi_adjust_cfa_offset -8\n\t")
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__ASM_CFI(".cfi_same_value %rbp\n\t")
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"ret")
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#else
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static void CDECL _vcomp_fork_call_wrapper(void *wrapper, int nargs, __ms_va_list args)
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{
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ERR("Not implemented for this architecture\n");
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}
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#endif
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static inline struct vcomp_thread_data *vcomp_get_thread_data(void)
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{
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return (struct vcomp_thread_data *)TlsGetValue(vcomp_context_tls);
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}
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static inline void vcomp_set_thread_data(struct vcomp_thread_data *thread_data)
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{
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TlsSetValue(vcomp_context_tls, thread_data);
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}
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static struct vcomp_thread_data *vcomp_init_thread_data(void)
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{
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struct vcomp_thread_data *thread_data = vcomp_get_thread_data();
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struct
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{
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struct vcomp_thread_data thread;
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struct vcomp_task_data task;
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} *data;
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if (thread_data) return thread_data;
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if (!(data = HeapAlloc(GetProcessHeap(), 0, sizeof(*data))))
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{
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ERR("could not create thread data\n");
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ExitProcess(1);
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}
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data->task.single = 0;
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data->task.section = 0;
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data->task.dynamic = 0;
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thread_data = &data->thread;
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thread_data->team = NULL;
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thread_data->task = &data->task;
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thread_data->thread_num = 0;
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thread_data->parallel = FALSE;
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thread_data->fork_threads = 0;
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thread_data->single = 1;
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thread_data->section = 1;
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thread_data->dynamic = 1;
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thread_data->dynamic_type = 0;
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vcomp_set_thread_data(thread_data);
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return thread_data;
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}
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static void vcomp_free_thread_data(void)
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{
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struct vcomp_thread_data *thread_data = vcomp_get_thread_data();
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if (!thread_data) return;
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HeapFree(GetProcessHeap(), 0, thread_data);
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vcomp_set_thread_data(NULL);
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}
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void CDECL _vcomp_atomic_add_i4(int *dest, int val)
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{
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interlocked_xchg_add(dest, val);
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}
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void CDECL _vcomp_atomic_and_i4(int *dest, int val)
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{
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int old;
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do old = *dest; while (interlocked_cmpxchg(dest, old & val, old) != old);
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}
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void CDECL _vcomp_atomic_div_i4(int *dest, int val)
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{
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int old;
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do old = *dest; while (interlocked_cmpxchg(dest, old / val, old) != old);
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}
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void CDECL _vcomp_atomic_div_ui4(unsigned int *dest, unsigned int val)
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{
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unsigned int old;
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do old = *dest; while (interlocked_cmpxchg((int *)dest, old / val, old) != old);
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}
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void CDECL _vcomp_atomic_mul_i4(int *dest, int val)
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{
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int old;
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do old = *dest; while (interlocked_cmpxchg(dest, old * val, old) != old);
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}
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void CDECL _vcomp_atomic_or_i4(int *dest, int val)
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{
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int old;
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do old = *dest; while (interlocked_cmpxchg(dest, old | val, old) != old);
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}
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void CDECL _vcomp_atomic_shl_i4(int *dest, int val)
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{
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int old;
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do old = *dest; while (interlocked_cmpxchg(dest, old << val, old) != old);
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}
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void CDECL _vcomp_atomic_shr_i4(int *dest, int val)
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{
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int old;
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do old = *dest; while (interlocked_cmpxchg(dest, old >> val, old) != old);
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}
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void CDECL _vcomp_atomic_shr_ui4(unsigned int *dest, unsigned int val)
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{
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unsigned int old;
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do old = *dest; while (interlocked_cmpxchg((int *)dest, old >> val, old) != old);
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}
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void CDECL _vcomp_atomic_sub_i4(int *dest, int val)
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{
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interlocked_xchg_add(dest, -val);
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}
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void CDECL _vcomp_atomic_xor_i4(int *dest, int val)
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{
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int old;
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do old = *dest; while (interlocked_cmpxchg(dest, old ^ val, old) != old);
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}
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void CDECL _vcomp_atomic_add_r4(float *dest, float val)
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{
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int old, new;
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do
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{
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old = *(int *)dest;
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*(float *)&new = *(float *)&old + val;
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}
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while (interlocked_cmpxchg((int *)dest, new, old) != old);
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}
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void CDECL _vcomp_atomic_div_r4(float *dest, float val)
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{
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int old, new;
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do
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{
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old = *(int *)dest;
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*(float *)&new = *(float *)&old / val;
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}
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while (interlocked_cmpxchg((int *)dest, new, old) != old);
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}
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void CDECL _vcomp_atomic_mul_r4(float *dest, float val)
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{
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int old, new;
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do
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{
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old = *(int *)dest;
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*(float *)&new = *(float *)&old * val;
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}
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while (interlocked_cmpxchg((int *)dest, new, old) != old);
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}
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void CDECL _vcomp_atomic_sub_r4(float *dest, float val)
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{
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int old, new;
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do
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{
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old = *(int *)dest;
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*(float *)&new = *(float *)&old - val;
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}
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while (interlocked_cmpxchg((int *)dest, new, old) != old);
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}
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void CDECL _vcomp_atomic_add_r8(double *dest, double val)
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{
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LONG64 old, new;
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do
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{
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old = *(LONG64 *)dest;
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*(double *)&new = *(double *)&old + val;
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}
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while (interlocked_cmpxchg64((LONG64 *)dest, new, old) != old);
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}
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void CDECL _vcomp_atomic_div_r8(double *dest, double val)
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{
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LONG64 old, new;
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do
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{
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old = *(LONG64 *)dest;
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*(double *)&new = *(double *)&old / val;
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}
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while (interlocked_cmpxchg64((LONG64 *)dest, new, old) != old);
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}
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void CDECL _vcomp_atomic_mul_r8(double *dest, double val)
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{
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LONG64 old, new;
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do
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{
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old = *(LONG64 *)dest;
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*(double *)&new = *(double *)&old * val;
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}
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while (interlocked_cmpxchg64((LONG64 *)dest, new, old) != old);
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}
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void CDECL _vcomp_atomic_sub_r8(double *dest, double val)
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{
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LONG64 old, new;
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do
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{
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old = *(LONG64 *)dest;
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*(double *)&new = *(double *)&old - val;
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}
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while (interlocked_cmpxchg64((LONG64 *)dest, new, old) != old);
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}
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int CDECL omp_get_dynamic(void)
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{
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TRACE("stub\n");
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return 0;
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}
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int CDECL omp_get_max_threads(void)
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{
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TRACE("()\n");
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return vcomp_max_threads;
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}
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int CDECL omp_get_nested(void)
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{
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TRACE("stub\n");
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return vcomp_nested_fork;
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}
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int CDECL omp_get_num_procs(void)
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{
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TRACE("stub\n");
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return 1;
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}
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int CDECL omp_get_num_threads(void)
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{
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struct vcomp_team_data *team_data = vcomp_init_thread_data()->team;
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TRACE("()\n");
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return team_data ? team_data->num_threads : 1;
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}
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int CDECL omp_get_thread_num(void)
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{
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TRACE("()\n");
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return vcomp_init_thread_data()->thread_num;
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}
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/* Time in seconds since "some time in the past" */
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double CDECL omp_get_wtime(void)
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{
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return GetTickCount() / 1000.0;
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}
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void CDECL omp_set_dynamic(int val)
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{
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TRACE("(%d): stub\n", val);
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}
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void CDECL omp_set_nested(int nested)
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{
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TRACE("(%d)\n", nested);
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vcomp_nested_fork = (nested != 0);
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}
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void CDECL omp_set_num_threads(int num_threads)
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{
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TRACE("(%d)\n", num_threads);
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if (num_threads >= 1)
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vcomp_num_threads = num_threads;
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}
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void CDECL _vcomp_barrier(void)
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{
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struct vcomp_team_data *team_data = vcomp_init_thread_data()->team;
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TRACE("()\n");
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if (!team_data)
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return;
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EnterCriticalSection(&vcomp_section);
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if (++team_data->barrier_count >= team_data->num_threads)
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{
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team_data->barrier++;
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team_data->barrier_count = 0;
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WakeAllConditionVariable(&team_data->cond);
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}
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else
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{
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unsigned int barrier = team_data->barrier;
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while (team_data->barrier == barrier)
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SleepConditionVariableCS(&team_data->cond, &vcomp_section, INFINITE);
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}
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LeaveCriticalSection(&vcomp_section);
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}
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void CDECL _vcomp_set_num_threads(int num_threads)
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{
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TRACE("(%d)\n", num_threads);
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if (num_threads >= 1)
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vcomp_init_thread_data()->fork_threads = num_threads;
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}
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int CDECL _vcomp_master_begin(void)
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{
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TRACE("()\n");
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return !vcomp_init_thread_data()->thread_num;
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}
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void CDECL _vcomp_master_end(void)
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{
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TRACE("()\n");
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/* nothing to do here */
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}
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int CDECL _vcomp_single_begin(int flags)
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{
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struct vcomp_thread_data *thread_data = vcomp_init_thread_data();
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struct vcomp_task_data *task_data = thread_data->task;
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int ret = FALSE;
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TRACE("(%x): semi-stub\n", flags);
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|
|
EnterCriticalSection(&vcomp_section);
|
|
thread_data->single++;
|
|
if ((int)(thread_data->single - task_data->single) > 0)
|
|
{
|
|
task_data->single = thread_data->single;
|
|
ret = TRUE;
|
|
}
|
|
LeaveCriticalSection(&vcomp_section);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void CDECL _vcomp_single_end(void)
|
|
{
|
|
TRACE("()\n");
|
|
/* nothing to do here */
|
|
}
|
|
|
|
void CDECL _vcomp_sections_init(int n)
|
|
{
|
|
struct vcomp_thread_data *thread_data = vcomp_init_thread_data();
|
|
struct vcomp_task_data *task_data = thread_data->task;
|
|
|
|
TRACE("(%d)\n", n);
|
|
|
|
EnterCriticalSection(&vcomp_section);
|
|
thread_data->section++;
|
|
if ((int)(thread_data->section - task_data->section) > 0)
|
|
{
|
|
task_data->section = thread_data->section;
|
|
task_data->num_sections = n;
|
|
task_data->section_index = 0;
|
|
}
|
|
LeaveCriticalSection(&vcomp_section);
|
|
}
|
|
|
|
int CDECL _vcomp_sections_next(void)
|
|
{
|
|
struct vcomp_thread_data *thread_data = vcomp_init_thread_data();
|
|
struct vcomp_task_data *task_data = thread_data->task;
|
|
int i = -1;
|
|
|
|
TRACE("()\n");
|
|
|
|
EnterCriticalSection(&vcomp_section);
|
|
if (thread_data->section == task_data->section &&
|
|
task_data->section_index != task_data->num_sections)
|
|
{
|
|
i = task_data->section_index++;
|
|
}
|
|
LeaveCriticalSection(&vcomp_section);
|
|
return i;
|
|
}
|
|
|
|
void CDECL _vcomp_for_static_simple_init(unsigned int first, unsigned int last, int step,
|
|
BOOL increment, unsigned int *begin, unsigned int *end)
|
|
{
|
|
unsigned int iterations, per_thread, remaining;
|
|
struct vcomp_thread_data *thread_data = vcomp_init_thread_data();
|
|
struct vcomp_team_data *team_data = thread_data->team;
|
|
int num_threads = team_data ? team_data->num_threads : 1;
|
|
int thread_num = thread_data->thread_num;
|
|
|
|
TRACE("(%u, %u, %d, %u, %p, %p)\n", first, last, step, increment, begin, end);
|
|
|
|
if (num_threads == 1)
|
|
{
|
|
*begin = first;
|
|
*end = last;
|
|
return;
|
|
}
|
|
|
|
if (step <= 0)
|
|
{
|
|
*begin = 0;
|
|
*end = increment ? -1 : 1;
|
|
return;
|
|
}
|
|
|
|
if (increment)
|
|
iterations = 1 + (last - first) / step;
|
|
else
|
|
{
|
|
iterations = 1 + (first - last) / step;
|
|
step *= -1;
|
|
}
|
|
|
|
per_thread = iterations / num_threads;
|
|
remaining = iterations - per_thread * num_threads;
|
|
|
|
if (thread_num < remaining)
|
|
per_thread++;
|
|
else if (per_thread)
|
|
first += remaining * step;
|
|
else
|
|
{
|
|
*begin = first;
|
|
*end = first - step;
|
|
return;
|
|
}
|
|
|
|
*begin = first + per_thread * thread_num * step;
|
|
*end = *begin + (per_thread - 1) * step;
|
|
}
|
|
|
|
void CDECL _vcomp_for_static_init(int first, int last, int step, int chunksize, unsigned int *loops,
|
|
int *begin, int *end, int *next, int *lastchunk)
|
|
{
|
|
unsigned int iterations, num_chunks, per_thread, remaining;
|
|
struct vcomp_thread_data *thread_data = vcomp_init_thread_data();
|
|
struct vcomp_team_data *team_data = thread_data->team;
|
|
int num_threads = team_data ? team_data->num_threads : 1;
|
|
int thread_num = thread_data->thread_num;
|
|
|
|
TRACE("(%d, %d, %d, %d, %p, %p, %p, %p, %p)\n",
|
|
first, last, step, chunksize, loops, begin, end, next, lastchunk);
|
|
|
|
if (num_threads == 1 && chunksize != 1)
|
|
{
|
|
*loops = 1;
|
|
*begin = first;
|
|
*end = last;
|
|
*next = 0;
|
|
*lastchunk = first;
|
|
return;
|
|
}
|
|
|
|
if (first == last)
|
|
{
|
|
*loops = !thread_num;
|
|
if (!thread_num)
|
|
{
|
|
*begin = first;
|
|
*end = last;
|
|
*next = 0;
|
|
*lastchunk = first;
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (step <= 0)
|
|
{
|
|
*loops = 0;
|
|
return;
|
|
}
|
|
|
|
if (first < last)
|
|
iterations = 1 + (last - first) / step;
|
|
else
|
|
{
|
|
iterations = 1 + (first - last) / step;
|
|
step *= -1;
|
|
}
|
|
|
|
if (chunksize < 1)
|
|
chunksize = 1;
|
|
|
|
num_chunks = ((DWORD64)iterations + chunksize - 1) / chunksize;
|
|
per_thread = num_chunks / num_threads;
|
|
remaining = num_chunks - per_thread * num_threads;
|
|
|
|
*loops = per_thread + (thread_num < remaining);
|
|
*begin = first + thread_num * chunksize * step;
|
|
*end = *begin + (chunksize - 1) * step;
|
|
*next = chunksize * num_threads * step;
|
|
*lastchunk = first + (num_chunks - 1) * chunksize * step;
|
|
}
|
|
|
|
void CDECL _vcomp_for_static_end(void)
|
|
{
|
|
TRACE("()\n");
|
|
/* nothing to do here */
|
|
}
|
|
|
|
void CDECL _vcomp_for_dynamic_init(unsigned int flags, unsigned int first, unsigned int last,
|
|
int step, unsigned int chunksize)
|
|
{
|
|
unsigned int iterations, per_thread, remaining;
|
|
struct vcomp_thread_data *thread_data = vcomp_init_thread_data();
|
|
struct vcomp_team_data *team_data = thread_data->team;
|
|
struct vcomp_task_data *task_data = thread_data->task;
|
|
int num_threads = team_data ? team_data->num_threads : 1;
|
|
int thread_num = thread_data->thread_num;
|
|
unsigned int type = flags & ~VCOMP_DYNAMIC_FLAGS_INCREMENT;
|
|
|
|
TRACE("(%u, %u, %u, %d, %u)\n", flags, first, last, step, chunksize);
|
|
|
|
if (step <= 0)
|
|
{
|
|
thread_data->dynamic_type = 0;
|
|
return;
|
|
}
|
|
|
|
if (flags & VCOMP_DYNAMIC_FLAGS_INCREMENT)
|
|
iterations = 1 + (last - first) / step;
|
|
else
|
|
{
|
|
iterations = 1 + (first - last) / step;
|
|
step *= -1;
|
|
}
|
|
|
|
if (type == VCOMP_DYNAMIC_FLAGS_STATIC)
|
|
{
|
|
per_thread = iterations / num_threads;
|
|
remaining = iterations - per_thread * num_threads;
|
|
|
|
if (thread_num < remaining)
|
|
per_thread++;
|
|
else if (per_thread)
|
|
first += remaining * step;
|
|
else
|
|
{
|
|
thread_data->dynamic_type = 0;
|
|
return;
|
|
}
|
|
|
|
thread_data->dynamic_type = VCOMP_DYNAMIC_FLAGS_STATIC;
|
|
thread_data->dynamic_begin = first + per_thread * thread_num * step;
|
|
thread_data->dynamic_end = thread_data->dynamic_begin + (per_thread - 1) * step;
|
|
}
|
|
else
|
|
{
|
|
if (type != VCOMP_DYNAMIC_FLAGS_CHUNKED &&
|
|
type != VCOMP_DYNAMIC_FLAGS_GUIDED)
|
|
{
|
|
FIXME("unsupported flags %u\n", flags);
|
|
type = VCOMP_DYNAMIC_FLAGS_GUIDED;
|
|
}
|
|
|
|
EnterCriticalSection(&vcomp_section);
|
|
thread_data->dynamic++;
|
|
thread_data->dynamic_type = type;
|
|
if ((int)(thread_data->dynamic - task_data->dynamic) > 0)
|
|
{
|
|
task_data->dynamic = thread_data->dynamic;
|
|
task_data->dynamic_first = first;
|
|
task_data->dynamic_last = last;
|
|
task_data->dynamic_iterations = iterations;
|
|
task_data->dynamic_step = step;
|
|
task_data->dynamic_chunksize = chunksize;
|
|
}
|
|
LeaveCriticalSection(&vcomp_section);
|
|
}
|
|
}
|
|
|
|
int CDECL _vcomp_for_dynamic_next(unsigned int *begin, unsigned int *end)
|
|
{
|
|
struct vcomp_thread_data *thread_data = vcomp_init_thread_data();
|
|
struct vcomp_task_data *task_data = thread_data->task;
|
|
struct vcomp_team_data *team_data = thread_data->team;
|
|
int num_threads = team_data ? team_data->num_threads : 1;
|
|
|
|
TRACE("(%p, %p)\n", begin, end);
|
|
|
|
if (thread_data->dynamic_type == VCOMP_DYNAMIC_FLAGS_STATIC)
|
|
{
|
|
*begin = thread_data->dynamic_begin;
|
|
*end = thread_data->dynamic_end;
|
|
thread_data->dynamic_type = 0;
|
|
return 1;
|
|
}
|
|
else if (thread_data->dynamic_type == VCOMP_DYNAMIC_FLAGS_CHUNKED ||
|
|
thread_data->dynamic_type == VCOMP_DYNAMIC_FLAGS_GUIDED)
|
|
{
|
|
unsigned int iterations = 0;
|
|
EnterCriticalSection(&vcomp_section);
|
|
if (thread_data->dynamic == task_data->dynamic &&
|
|
task_data->dynamic_iterations != 0)
|
|
{
|
|
iterations = min(task_data->dynamic_iterations, task_data->dynamic_chunksize);
|
|
if (thread_data->dynamic_type == VCOMP_DYNAMIC_FLAGS_GUIDED &&
|
|
task_data->dynamic_iterations > num_threads * task_data->dynamic_chunksize)
|
|
{
|
|
iterations = (task_data->dynamic_iterations + num_threads - 1) / num_threads;
|
|
}
|
|
*begin = task_data->dynamic_first;
|
|
*end = task_data->dynamic_first + (iterations - 1) * task_data->dynamic_step;
|
|
task_data->dynamic_iterations -= iterations;
|
|
task_data->dynamic_first += iterations * task_data->dynamic_step;
|
|
if (!task_data->dynamic_iterations)
|
|
*end = task_data->dynamic_last;
|
|
}
|
|
LeaveCriticalSection(&vcomp_section);
|
|
return iterations != 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int CDECL omp_in_parallel(void)
|
|
{
|
|
TRACE("()\n");
|
|
return vcomp_init_thread_data()->parallel;
|
|
}
|
|
|
|
static DWORD WINAPI _vcomp_fork_worker(void *param)
|
|
{
|
|
struct vcomp_thread_data *thread_data = param;
|
|
vcomp_set_thread_data(thread_data);
|
|
|
|
TRACE("starting worker thread for %p\n", thread_data);
|
|
|
|
EnterCriticalSection(&vcomp_section);
|
|
for (;;)
|
|
{
|
|
struct vcomp_team_data *team = thread_data->team;
|
|
if (team != NULL)
|
|
{
|
|
LeaveCriticalSection(&vcomp_section);
|
|
_vcomp_fork_call_wrapper(team->wrapper, team->nargs, team->valist);
|
|
EnterCriticalSection(&vcomp_section);
|
|
|
|
thread_data->team = NULL;
|
|
list_remove(&thread_data->entry);
|
|
list_add_tail(&vcomp_idle_threads, &thread_data->entry);
|
|
if (++team->finished_threads >= team->num_threads)
|
|
WakeAllConditionVariable(&team->cond);
|
|
}
|
|
|
|
if (!SleepConditionVariableCS(&thread_data->cond, &vcomp_section, 5000) &&
|
|
GetLastError() == ERROR_TIMEOUT && !thread_data->team)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
list_remove(&thread_data->entry);
|
|
LeaveCriticalSection(&vcomp_section);
|
|
|
|
TRACE("terminating worker thread for %p\n", thread_data);
|
|
|
|
HeapFree(GetProcessHeap(), 0, thread_data);
|
|
vcomp_set_thread_data(NULL);
|
|
FreeLibraryAndExitThread(vcomp_module, 0);
|
|
return 0;
|
|
}
|
|
|
|
void WINAPIV _vcomp_fork(BOOL ifval, int nargs, void *wrapper, ...)
|
|
{
|
|
struct vcomp_thread_data *prev_thread_data = vcomp_init_thread_data();
|
|
struct vcomp_thread_data thread_data;
|
|
struct vcomp_team_data team_data;
|
|
struct vcomp_task_data task_data;
|
|
int num_threads;
|
|
|
|
TRACE("(%d, %d, %p, ...)\n", ifval, nargs, wrapper);
|
|
|
|
if (prev_thread_data->parallel && !vcomp_nested_fork)
|
|
ifval = FALSE;
|
|
|
|
if (!ifval)
|
|
num_threads = 1;
|
|
else if (prev_thread_data->fork_threads)
|
|
num_threads = prev_thread_data->fork_threads;
|
|
else
|
|
num_threads = vcomp_num_threads;
|
|
|
|
InitializeConditionVariable(&team_data.cond);
|
|
team_data.num_threads = 1;
|
|
team_data.finished_threads = 0;
|
|
team_data.nargs = nargs;
|
|
team_data.wrapper = wrapper;
|
|
__ms_va_start(team_data.valist, wrapper);
|
|
team_data.barrier = 0;
|
|
team_data.barrier_count = 0;
|
|
|
|
task_data.single = 0;
|
|
task_data.section = 0;
|
|
task_data.dynamic = 0;
|
|
|
|
thread_data.team = &team_data;
|
|
thread_data.task = &task_data;
|
|
thread_data.thread_num = 0;
|
|
thread_data.parallel = ifval || prev_thread_data->parallel;
|
|
thread_data.fork_threads = 0;
|
|
thread_data.single = 1;
|
|
thread_data.section = 1;
|
|
thread_data.dynamic = 1;
|
|
thread_data.dynamic_type = 0;
|
|
list_init(&thread_data.entry);
|
|
InitializeConditionVariable(&thread_data.cond);
|
|
|
|
if (num_threads > 1)
|
|
{
|
|
struct list *ptr;
|
|
EnterCriticalSection(&vcomp_section);
|
|
|
|
/* reuse existing threads (if any) */
|
|
while (team_data.num_threads < num_threads && (ptr = list_head(&vcomp_idle_threads)))
|
|
{
|
|
struct vcomp_thread_data *data = LIST_ENTRY(ptr, struct vcomp_thread_data, entry);
|
|
data->team = &team_data;
|
|
data->task = &task_data;
|
|
data->thread_num = team_data.num_threads++;
|
|
data->parallel = thread_data.parallel;
|
|
data->fork_threads = 0;
|
|
data->single = 1;
|
|
data->section = 1;
|
|
data->dynamic = 1;
|
|
data->dynamic_type = 0;
|
|
list_remove(&data->entry);
|
|
list_add_tail(&thread_data.entry, &data->entry);
|
|
WakeAllConditionVariable(&data->cond);
|
|
}
|
|
|
|
/* spawn additional threads */
|
|
while (team_data.num_threads < num_threads)
|
|
{
|
|
struct vcomp_thread_data *data;
|
|
HMODULE module;
|
|
HANDLE thread;
|
|
|
|
data = HeapAlloc(GetProcessHeap(), 0, sizeof(*data));
|
|
if (!data) break;
|
|
|
|
data->team = &team_data;
|
|
data->task = &task_data;
|
|
data->thread_num = team_data.num_threads;
|
|
data->parallel = thread_data.parallel;
|
|
data->fork_threads = 0;
|
|
data->single = 1;
|
|
data->section = 1;
|
|
data->dynamic = 1;
|
|
data->dynamic_type = 0;
|
|
InitializeConditionVariable(&data->cond);
|
|
|
|
thread = CreateThread(NULL, 0, _vcomp_fork_worker, data, 0, NULL);
|
|
if (!thread)
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, data);
|
|
break;
|
|
}
|
|
|
|
GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
|
|
(const WCHAR *)vcomp_module, &module);
|
|
team_data.num_threads++;
|
|
list_add_tail(&thread_data.entry, &data->entry);
|
|
CloseHandle(thread);
|
|
}
|
|
|
|
LeaveCriticalSection(&vcomp_section);
|
|
}
|
|
|
|
vcomp_set_thread_data(&thread_data);
|
|
_vcomp_fork_call_wrapper(team_data.wrapper, team_data.nargs, team_data.valist);
|
|
vcomp_set_thread_data(prev_thread_data);
|
|
prev_thread_data->fork_threads = 0;
|
|
|
|
if (team_data.num_threads > 1)
|
|
{
|
|
EnterCriticalSection(&vcomp_section);
|
|
|
|
team_data.finished_threads++;
|
|
while (team_data.finished_threads < team_data.num_threads)
|
|
SleepConditionVariableCS(&team_data.cond, &vcomp_section, INFINITE);
|
|
|
|
LeaveCriticalSection(&vcomp_section);
|
|
assert(list_empty(&thread_data.entry));
|
|
}
|
|
|
|
__ms_va_end(team_data.valist);
|
|
}
|
|
|
|
void CDECL _vcomp_enter_critsect(CRITICAL_SECTION **critsect)
|
|
{
|
|
TRACE("(%p)\n", critsect);
|
|
|
|
if (!*critsect)
|
|
{
|
|
CRITICAL_SECTION *new_critsect;
|
|
if (!(new_critsect = HeapAlloc(GetProcessHeap(), 0, sizeof(*new_critsect))))
|
|
{
|
|
ERR("could not allocate critical section\n");
|
|
ExitProcess(1);
|
|
}
|
|
|
|
InitializeCriticalSection(new_critsect);
|
|
new_critsect->DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": critsect");
|
|
|
|
if (interlocked_cmpxchg_ptr((void **)critsect, new_critsect, NULL) != NULL)
|
|
{
|
|
/* someone beat us to it */
|
|
new_critsect->DebugInfo->Spare[0] = 0;
|
|
DeleteCriticalSection(new_critsect);
|
|
HeapFree(GetProcessHeap(), 0, new_critsect);
|
|
}
|
|
}
|
|
|
|
EnterCriticalSection(*critsect);
|
|
}
|
|
|
|
void CDECL _vcomp_leave_critsect(CRITICAL_SECTION *critsect)
|
|
{
|
|
TRACE("(%p)\n", critsect);
|
|
LeaveCriticalSection(critsect);
|
|
}
|
|
|
|
BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
|
|
{
|
|
TRACE("(%p, %d, %p)\n", instance, reason, reserved);
|
|
|
|
switch (reason)
|
|
{
|
|
case DLL_WINE_PREATTACH:
|
|
return FALSE; /* prefer native version */
|
|
|
|
case DLL_PROCESS_ATTACH:
|
|
{
|
|
SYSTEM_INFO sysinfo;
|
|
|
|
if ((vcomp_context_tls = TlsAlloc()) == TLS_OUT_OF_INDEXES)
|
|
{
|
|
ERR("Failed to allocate TLS index\n");
|
|
return FALSE;
|
|
}
|
|
|
|
GetSystemInfo(&sysinfo);
|
|
vcomp_module = instance;
|
|
vcomp_max_threads = sysinfo.dwNumberOfProcessors;
|
|
vcomp_num_threads = sysinfo.dwNumberOfProcessors;
|
|
break;
|
|
}
|
|
|
|
case DLL_PROCESS_DETACH:
|
|
{
|
|
if (reserved) break;
|
|
if (vcomp_context_tls != TLS_OUT_OF_INDEXES)
|
|
{
|
|
vcomp_free_thread_data();
|
|
TlsFree(vcomp_context_tls);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case DLL_THREAD_DETACH:
|
|
{
|
|
vcomp_free_thread_data();
|
|
break;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|