352a0baeab
Add function pointers for read, write, and eventfd in Sys wrapper and call these instead of directly calling system calls. CRs-Fixed: 814136 Change-Id: I9964df85be2f6eaa83371b71971c642a768830f8
97 lines
3.7 KiB
C++
97 lines
3.7 KiB
C++
/*
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* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <utils/sys.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <unistd.h>
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#define __CLASS__ "Sys"
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namespace sdm {
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#ifndef SDM_VIRTUAL_DRIVER
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int PthreadCancel(pthread_t /* thread */) {
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return 0;
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}
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// Pointer to actual driver interfaces.
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Sys::ioctl Sys::ioctl_ = ::ioctl;
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Sys::open Sys::open_ = ::open;
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Sys::close Sys::close_ = ::close;
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Sys::poll Sys::poll_ = ::poll;
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Sys::pread Sys::pread_ = ::pread;
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Sys::pwrite Sys::pwrite_ = ::pwrite;
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Sys::fopen Sys::fopen_ = ::fopen;
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Sys::fclose Sys::fclose_ = ::fclose;
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Sys::getline Sys::getline_ = ::getline;
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Sys::pthread_cancel Sys::pthread_cancel_ = PthreadCancel;
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Sys::dup Sys::dup_ = ::dup;
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Sys::read Sys::read_ = ::read;
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Sys::write Sys::write_ = ::write;
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Sys::eventfd Sys::eventfd_ = ::eventfd;
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#else
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// Point to virtual driver interfaces.
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extern int virtual_ioctl(int fd, int cmd, ...);
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extern int virtual_open(const char *file_name, int access, ...);
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extern int virtual_close(int fd);
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extern int virtual_poll(struct pollfd *fds, nfds_t num, int timeout);
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extern ssize_t virtual_pread(int fd, void *data, size_t count, off_t offset);
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extern ssize_t virtual_pwrite(int fd, const void *data, size_t count, off_t offset);
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extern FILE* virtual_fopen(const char *fname, const char *mode);
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extern int virtual_fclose(FILE* fileptr);
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extern ssize_t virtual_getline(char **lineptr, size_t *linelen, FILE *stream);
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extern int virtual_dup(int fd);
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extern ssize_t virtual_read(int fd, void *data, size_t count);
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extern ssize_t virtual_write(int fd, const void *data, size_t count);
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extern int virtual_eventfd(unsigned int initval, int flags);
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Sys::ioctl Sys::ioctl_ = virtual_ioctl;
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Sys::open Sys::open_ = virtual_open;
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Sys::close Sys::close_ = virtual_close;
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Sys::poll Sys::poll_ = virtual_poll;
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Sys::pread Sys::pread_ = virtual_pread;
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Sys::pwrite Sys::pwrite_ = virtual_pwrite;
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Sys::fopen Sys::fopen_ = virtual_fopen;
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Sys::fclose Sys::fclose_ = virtual_fclose;
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Sys::getline Sys::getline_ = virtual_getline;
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Sys::pthread_cancel Sys::pthread_cancel_ = ::pthread_cancel;
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Sys::dup Sys::dup_ = virtual_dup;
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Sys::read Sys::read_ = virtual_read;
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Sys::write Sys::write_ = virtual_write;
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Sys::eventfd Sys::eventfd_ = virtual_eventfd;
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#endif // SDM_VIRTUAL_DRIVER
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} // namespace sdm
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