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51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
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// Copyright 2014 The Crashpad Authors. All rights reserved.
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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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#ifndef CRASHPAD_UTIL_FILE_FD_IO_H_
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#define CRASHPAD_UTIL_FILE_FD_IO_H_
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#include <sys/types.h>
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namespace crashpad {
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//! \brief Wraps `read()`, retrying when interrupted or following a short read.
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//!
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//! This function reads into \a buffer, stopping only when \a size bytes have
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//! been read or when `read()` returns 0, indicating that end-of-file has been
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//! reached.
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//!
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//! \return The number of bytes read and placed into \a buffer, or `-1` on
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//! error, with `errno` set appropriately. On error, a portion of \a fd may
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//! have been read into \a buffer.
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//!
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//! \sa WriteFD
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ssize_t ReadFD(int fd, void* buffer, size_t size);
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//! \brief Wraps `write()`, retrying when interrupted or following a short
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//! write.
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//!
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//! This function writes to \a fd, stopping only when \a size bytes have been
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//! written.
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//!
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//! \return The number of bytes written from \a buffer, or `-1` on error, with
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//! `errno` set appropriately. On error, a portion of \a buffer may have
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//! been written to \a fd.
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//!
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//! \sa ReadFD
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ssize_t WriteFD(int fd, const void* buffer, size_t size);
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} // namespace crashpad
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#endif // CRASHPAD_UTIL_FILE_FD_IO_H_
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