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/*
Copyright(C) 2015 Brazil
Copyright(C) 2018-2021 Sutou Kouhei <kou@clear-code.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "grn_ctx.h"
#include "grn_windows.h"
#ifdef _WIN32
# include <stdio.h>
# include <tlhelp32.h>
#endif
static grn_thread_get_limit_func get_limit_func = NULL;
static void *get_limit_func_data = NULL;
static grn_thread_set_limit_func set_limit_func = NULL;
static void *set_limit_func_data = NULL;
static grn_thread_get_limit_with_ctx_func get_limit_with_ctx_func = NULL;
static void *get_limit_with_ctx_func_data = NULL;
static grn_thread_set_limit_with_ctx_func set_limit_with_ctx_func = NULL;
static void *set_limit_with_ctx_func_data = NULL;
uint32_t
grn_thread_get_limit(void)
{
if (get_limit_func) {
return get_limit_func(get_limit_func_data);
} else {
return 0;
}
}
void
grn_thread_set_limit(uint32_t new_limit)
{
if (!set_limit_func) {
return;
}
set_limit_func(new_limit, set_limit_func_data);
}
uint32_t
grn_thread_get_limit_with_ctx(grn_ctx *ctx)
{
if (get_limit_with_ctx_func) {
return get_limit_with_ctx_func(ctx, get_limit_with_ctx_func_data);
} else {
return grn_thread_get_limit();
}
}
void
grn_thread_set_limit_with_ctx(grn_ctx *ctx, uint32_t new_limit)
{
if (set_limit_with_ctx_func) {
set_limit_with_ctx_func(ctx, new_limit, set_limit_func_data);
} else {
grn_thread_set_limit(new_limit);
}
}
void
grn_thread_set_get_limit_func(grn_thread_get_limit_func func,
void *data)
{
get_limit_func = func;
get_limit_func_data = data;
}
void
grn_thread_set_set_limit_func(grn_thread_set_limit_func func, void *data)
{
set_limit_func = func;
set_limit_func_data = data;
}
void
grn_thread_set_get_limit_with_ctx_func(grn_thread_get_limit_with_ctx_func func,
void *data)
{
get_limit_with_ctx_func = func;
get_limit_with_ctx_func_data = data;
}
void
grn_thread_set_set_limit_with_ctx_func(grn_thread_set_limit_with_ctx_func func,
void *data)
{
set_limit_with_ctx_func = func;
set_limit_with_ctx_func_data = data;
}
grn_rc
grn_thread_dump(grn_ctx *ctx)
{
GRN_API_ENTER;
#ifdef _WIN32
grn_log_level level = GRN_LOG_NOTICE;
HANDLE thread_snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
if (thread_snapshot == INVALID_HANDLE_VALUE) {
SERR("[thread][dump] failed to create thread snapshot");
GRN_API_RETURN(ctx->rc);
}
HANDLE process = GetCurrentProcess();
DWORD process_id = GetCurrentProcessId();
THREADENTRY32 entry;
entry.dwSize = sizeof(entry);
if (!Thread32First(thread_snapshot, &entry)) {
SERR("[thread][dump] failed to retrieve the first thread");
}
if (ctx->rc == GRN_SUCCESS) {
do {
if (entry.th32OwnerProcessID != process_id) {
continue;
}
HANDLE thread = OpenThread(THREAD_GET_CONTEXT,
FALSE,
entry.th32ThreadID);
if (thread == INVALID_HANDLE_VALUE) {
continue;
}
CONTEXT context;
context.ContextFlags = CONTEXT_FULL;
if (GetThreadContext(thread, &context)) {
GRN_LOG(ctx, level, "-- Thread %08" GRN_FMT_DWORD " --",
entry.th32ThreadID);
grn_windows_log_back_trace(ctx,
level,
process,
thread,
&context);
GRN_LOG(ctx, level, "---------------------");
}
CloseHandle(thread);
} while (Thread32Next(thread_snapshot, &entry));
}
CloseHandle(thread_snapshot);
#else
#endif
GRN_API_RETURN(ctx->rc);
}
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