2 * Copyright 2016-present Facebook, Inc.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
27 #include <sys/locking.h> // @manual
29 #include <folly/portability/SysTypes.h>
31 // This is different from the normal headers because there are a few cases,
32 // such as close(), where we need to override the definition of an existing
33 // function. To avoid conflicts at link time, everything here is in a namespace
34 // which is then used globally.
36 #define _SC_PAGESIZE 1
37 #define _SC_PAGE_SIZE _SC_PAGESIZE
38 #define _SC_NPROCESSORS_ONLN 2
39 #define _SC_NPROCESSORS_CONF 2
41 // Windows doesn't define these, but these are the correct values
43 #define STDIN_FILENO 0
44 #define STDOUT_FILENO 1
45 #define STDERR_FILENO 2
47 // Windows is weird and doesn't actually defined these
48 // for the parameters to access, so we have to do it ourselves -_-...
55 #define F_LOCK _LK_LOCK
56 #define F_ULOCK _LK_UNLCK
59 namespace portability {
61 int access(char const* fn, int am);
62 int chdir(const char* path);
65 int dup2(int fhs, int fhd);
67 int ftruncate(int fd, off_t len);
68 char* getcwd(char* buf, int sz);
75 int lockf(int fd, int cmd, off_t len);
76 off_t lseek(int fh, off_t off, int orig);
77 ssize_t read(int fh, void* buf, size_t mcc);
78 int rmdir(const char* path);
80 ssize_t pread(int fd, void* buf, size_t count, off_t offset);
81 ssize_t pwrite(int fd, const void* buf, size_t count, off_t offset);
82 ssize_t readlink(const char* path, char* buf, size_t buflen);
83 void* sbrk(intptr_t i);
84 unsigned int sleep(unsigned int seconds);
86 int truncate(const char* path, off_t len);
87 int usleep(unsigned int ms);
88 ssize_t write(int fh, void const* buf, size_t count);
93 /* using override */ using namespace folly::portability::unistd;