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https://gitlab.winehq.org/wine/wine-gecko.git
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51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "LinuxUtils.h"
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#if defined(XP_LINUX)
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#include <ctype.h>
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#include <stdio.h>
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#include "nsPrintfCString.h"
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namespace mozilla {
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void
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LinuxUtils::GetThreadName(pid_t aTid, nsACString& aName)
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{
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aName.Truncate();
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if (aTid <= 0) {
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return;
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}
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const size_t kBuffSize = 16; // 15 chars max + '\n'
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char buf[kBuffSize];
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nsPrintfCString path("/proc/%d/comm", aTid);
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FILE* fp = fopen(path.get(), "r");
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if (!fp) {
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// The fopen could also fail if the thread exited before we got here.
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return;
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}
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size_t len = fread(buf, 1, kBuffSize, fp);
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fclose(fp);
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// No need to strip the '\n', since isspace() includes it.
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while (len > 0 &&
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(isspace(buf[len - 1]) || isdigit(buf[len - 1]) ||
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buf[len - 1] == '#' || buf[len - 1] == '_')) {
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--len;
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}
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aName.Assign(buf, len);
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}
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}
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#endif // XP_LINUX
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