facf94c74a
(cherry pick from commit 018a96d03f)
Create config_logger, logger and logger_read to house the log
interfaces. Add fake_logger, logd_logger and pmsg_logger to
house the write and read transports. Allows for an easier and
direct path to add new transports to the library.
SideEffects: None, logger benchmark performance unaffected
Bug: 27176738
Bug: 27405083
Change-Id: I01b38637334a5242905c8c89f6ab0a92e2540008
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/*
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* Copyright (C) 2007-2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#if defined(_WIN32)
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#include <unistd.h>
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#include <log/uio.h>
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#include "log_portability.h"
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LIBLOG_ABI_PUBLIC int readv(int fd, struct iovec *vecs, int count)
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{
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int total = 0;
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for ( ; count > 0; count--, vecs++ ) {
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char* buf = vecs->iov_base;
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int len = vecs->iov_len;
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while (len > 0) {
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int ret = read( fd, buf, len );
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if (ret < 0) {
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if (total == 0)
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total = -1;
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goto Exit;
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}
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if (ret == 0)
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goto Exit;
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total += ret;
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buf += ret;
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len -= ret;
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}
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}
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Exit:
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return total;
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}
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LIBLOG_ABI_PUBLIC int writev(int fd, const struct iovec *vecs, int count)
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{
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int total = 0;
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for ( ; count > 0; count--, vecs++ ) {
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const char* buf = vecs->iov_base;
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int len = vecs->iov_len;
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while (len > 0) {
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int ret = write( fd, buf, len );
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if (ret < 0) {
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if (total == 0)
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total = -1;
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goto Exit;
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}
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if (ret == 0)
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goto Exit;
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total += ret;
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buf += ret;
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len -= ret;
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}
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}
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Exit:
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return total;
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}
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#endif
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