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51 lines
1.4 KiB
51 lines
1.4 KiB
/* |
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* poll_posix: poll compatibility wrapper for POSIX systems |
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* Copyright © 2013 RealVNC Ltd. |
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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 Street, Fifth Floor, Boston, MA 02110-1301 USA |
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* |
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*/ |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <errno.h> |
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#include <stdlib.h> |
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#include "libusbi.h" |
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int usbi_pipe(int pipefd[2]) |
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{ |
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int ret = pipe(pipefd); |
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if (ret != 0) { |
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return ret; |
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} |
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ret = fcntl(pipefd[1], F_GETFL); |
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if (ret == -1) { |
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usbi_dbg("Failed to get pipe fd flags: %d", errno); |
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goto err_close_pipe; |
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} |
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ret = fcntl(pipefd[1], F_SETFL, ret | O_NONBLOCK); |
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if (ret != 0) { |
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usbi_dbg("Failed to set non-blocking on new pipe: %d", errno); |
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goto err_close_pipe; |
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} |
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return 0; |
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err_close_pipe: |
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usbi_close(pipefd[0]); |
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usbi_close(pipefd[1]); |
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return ret; |
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}
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