1 /*
2 * Copyright 2018 Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "sys.hpp"
18
19 #include <fcntl.h>
20 #include <sys/ioctl.h>
21 #include <sys/mman.h>
22 #include <sys/sendfile.h>
23 #include <sys/stat.h>
24 #include <sys/types.h>
25 #include <unistd.h>
26
27 #include <cstdint>
28
29 namespace internal
30 {
31
getSize(const char * pathname) const32 std::int64_t SysImpl::getSize(const char* pathname) const
33 {
34 struct stat results;
35 int rc = ::stat(pathname, &results);
36 if (rc)
37 {
38 return 0;
39 }
40
41 return static_cast<std::int64_t>(results.st_size);
42 }
43
open(const char * pathname,int flags) const44 int SysImpl::open(const char* pathname, int flags) const
45 {
46 return ::open(pathname, flags);
47 }
48
read(int fd,void * buf,std::size_t count) const49 int SysImpl::read(int fd, void* buf, std::size_t count) const
50 {
51 return static_cast<int>(::read(fd, buf, count));
52 }
53
pread(int fd,void * buf,std::size_t count,off_t offset) const54 int SysImpl::pread(int fd, void* buf, std::size_t count, off_t offset) const
55 {
56 return static_cast<int>(::pread(fd, buf, count, offset));
57 }
58
pwrite(int fd,const void * buf,std::size_t count,off_t offset) const59 int SysImpl::pwrite(int fd, const void* buf, std::size_t count,
60 off_t offset) const
61 {
62 return static_cast<int>(::pwrite(fd, buf, count, offset));
63 }
64
close(int fd) const65 int SysImpl::close(int fd) const
66 {
67 return ::close(fd);
68 }
69
mmap(void * addr,std::size_t length,int prot,int flags,int fd,off_t offset) const70 void* SysImpl::mmap(void* addr, std::size_t length, int prot, int flags, int fd,
71 off_t offset) const
72 {
73 return ::mmap(addr, length, prot, flags, fd, offset);
74 }
75
munmap(void * addr,std::size_t length) const76 int SysImpl::munmap(void* addr, std::size_t length) const
77 {
78 return ::munmap(addr, length);
79 }
80
getpagesize() const81 int SysImpl::getpagesize() const
82 {
83 return ::getpagesize();
84 }
85
ioctl(int fd,unsigned long request,void * param) const86 int SysImpl::ioctl(int fd, unsigned long request, void* param) const
87 {
88 return ::ioctl(fd, request, param);
89 }
90
poll(struct pollfd * fds,nfds_t nfds,int timeout) const91 int SysImpl::poll(struct pollfd* fds, nfds_t nfds, int timeout) const
92 {
93 return ::poll(fds, nfds, timeout);
94 }
95
socket(int domain,int type,int protocol) const96 int SysImpl::socket(int domain, int type, int protocol) const
97 {
98 return ::socket(domain, type, protocol);
99 }
100
connect(int sockfd,const struct sockaddr * addr,socklen_t addrlen) const101 int SysImpl::connect(int sockfd, const struct sockaddr* addr,
102 socklen_t addrlen) const
103 {
104 return ::connect(sockfd, addr, addrlen);
105 }
106
send(int sockfd,const void * buf,size_t len,int flags) const107 ssize_t SysImpl::send(int sockfd, const void* buf, size_t len, int flags) const
108 {
109 return ::send(sockfd, buf, len, flags);
110 }
111
sendfile(int out_fd,int in_fd,off_t * offset,size_t count) const112 ssize_t SysImpl::sendfile(int out_fd, int in_fd, off_t* offset,
113 size_t count) const
114 {
115 return ::sendfile(out_fd, in_fd, offset, count);
116 }
117
getaddrinfo(const char * node,const char * service,const struct addrinfo * hints,struct addrinfo ** res) const118 int SysImpl::getaddrinfo(const char* node, const char* service,
119 const struct addrinfo* hints,
120 struct addrinfo** res) const
121 {
122 return ::getaddrinfo(node, service, hints, res);
123 }
124
freeaddrinfo(struct addrinfo * res) const125 void SysImpl::freeaddrinfo(struct addrinfo* res) const
126 {
127 ::freeaddrinfo(res);
128 }
129
130 SysImpl sys_impl;
131
132 } // namespace internal
133