| /* |
| * librdkafka - Apache Kafka C library |
| * |
| * Copyright (c) 2012-2015 Magnus Edenhill |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * Win32 (Visual Studio) support |
| */ |
| #pragma once |
| |
| |
| #include <stdlib.h> |
| #include <inttypes.h> |
| #include <sys/types.h> |
| #include <time.h> |
| #include <assert.h> |
| #define WIN32_MEAN_AND_LEAN |
| #include <Winsock2.h> /* for struct timeval */ |
| #include <io.h> |
| #include <fcntl.h> |
| |
| |
| /** |
| * Types |
| */ |
| typedef SSIZE_T ssize_t; |
| typedef int socklen_t; |
| |
| struct iovec { |
| void *iov_base; |
| size_t iov_len; |
| }; |
| |
| struct msghdr { |
| struct iovec *msg_iov; |
| int msg_iovlen; |
| }; |
| |
| #define LOG_EMERG 0 |
| #define LOG_ALERT 1 |
| #define LOG_CRIT 2 |
| #define LOG_ERR 3 |
| #define LOG_WARNING 4 |
| #define LOG_NOTICE 5 |
| #define LOG_INFO 6 |
| #define LOG_DEBUG 7 |
| |
| |
| |
| /** |
| * Annotations, attributes, optimizers |
| */ |
| #ifndef likely |
| #define likely(x) x |
| #endif |
| #ifndef unlikely |
| #define unlikely(x) x |
| #endif |
| |
| #define RD_UNUSED |
| #define RD_INLINE __inline |
| #define RD_WARN_UNUSED_RESULT |
| #define RD_NORETURN __declspec(noreturn) |
| #define RD_IS_CONSTANT(p) (0) |
| #define RD_TLS __declspec(thread) |
| |
| |
| /** |
| * Allocation |
| */ |
| #define rd_alloca(N) _alloca(N) |
| |
| |
| /** |
| * Strings, formatting, printf, .. |
| */ |
| |
| /* size_t and ssize_t format strings */ |
| #define PRIusz "Iu" |
| #define PRIdsz "Id" |
| |
| #define RD_FORMAT(...) |
| |
| static RD_UNUSED RD_INLINE |
| int rd_vsnprintf (char *str, size_t size, const char *format, va_list ap) { |
| int cnt = -1; |
| |
| if (size != 0) |
| cnt = _vsnprintf_s(str, size, _TRUNCATE, format, ap); |
| if (cnt == -1) |
| cnt = _vscprintf(format, ap); |
| |
| return cnt; |
| } |
| |
| static RD_UNUSED RD_INLINE |
| int rd_snprintf (char *str, size_t size, const char *format, ...) { |
| int cnt; |
| va_list ap; |
| |
| va_start(ap, format); |
| cnt = rd_vsnprintf(str, size, format, ap); |
| va_end(ap); |
| |
| return cnt; |
| } |
| |
| |
| #define rd_strcasecmp(A,B) _stricmp(A,B) |
| #define rd_strncasecmp(A,B,N) _strnicmp(A,B,N) |
| |
| |
| /** |
| * Errors |
| */ |
| static RD_INLINE RD_UNUSED const char *rd_strerror(int err) { |
| static RD_TLS char ret[128]; |
| |
| strerror_s(ret, sizeof(ret) - 1, err); |
| return ret; |
| } |
| |
| |
| /** |
| * Atomics |
| */ |
| #ifndef __cplusplus |
| #include "rdatomic.h" |
| #endif |
| |
| |
| /** |
| * Misc |
| */ |
| |
| /** |
| * Microsecond sleep. |
| * 'retry': if true, retry if sleep is interrupted (because of signal) |
| */ |
| #define rd_usleep(usec,terminate) Sleep((usec) / 1000) |
| |
| |
| /** |
| * @brief gettimeofday() for win32 |
| */ |
| static RD_UNUSED |
| int rd_gettimeofday (struct timeval *tv, struct timezone *tz) { |
| SYSTEMTIME st; |
| FILETIME ft; |
| ULARGE_INTEGER d; |
| |
| GetSystemTime(&st); |
| SystemTimeToFileTime(&st, &ft); |
| d.HighPart = ft.dwHighDateTime; |
| d.LowPart = ft.dwLowDateTime; |
| tv->tv_sec = (long)((d.QuadPart - 116444736000000000llu) / 10000000L); |
| tv->tv_usec = (long)(st.wMilliseconds * 1000); |
| |
| return 0; |
| } |
| |
| |
| #define rd_assert(EXPR) assert(EXPR) |
| |
| |
| /** |
| * Empty struct initializer |
| */ |
| #define RD_ZERO_INIT {0} |
| |
| #ifndef __cplusplus |
| /** |
| * Sockets, IO |
| */ |
| |
| /** |
| * @brief Set socket to non-blocking |
| * @returns 0 on success or -1 on failure (see rd_kafka_socket_errno) |
| */ |
| static RD_UNUSED int rd_fd_set_nonblocking (int fd) { |
| int on = 1; |
| if (ioctlsocket(fd, FIONBIO, &on) == SOCKET_ERROR) |
| return (int)WSAGetLastError(); |
| return 0; |
| } |
| |
| /** |
| * @brief Create non-blocking pipe |
| * @returns 0 on success or errno on failure |
| */ |
| static RD_UNUSED int rd_pipe_nonblocking (int *fds) { |
| HANDLE h[2]; |
| int i; |
| |
| if (!CreatePipe(&h[0], &h[1], NULL, 0)) |
| return (int)GetLastError(); |
| for (i = 0 ; i < 2 ; i++) { |
| DWORD mode = PIPE_NOWAIT; |
| /* Set non-blocking */ |
| if (!SetNamedPipeHandleState(h[i], &mode, NULL, NULL)) { |
| CloseHandle(h[0]); |
| CloseHandle(h[1]); |
| return (int)GetLastError(); |
| } |
| |
| /* Open file descriptor for handle */ |
| fds[i] = _open_osfhandle((intptr_t)h[i], |
| i == 0 ? |
| O_RDONLY | O_BINARY : |
| O_WRONLY | O_BINARY); |
| |
| if (fds[i] == -1) { |
| CloseHandle(h[0]); |
| CloseHandle(h[1]); |
| return (int)GetLastError(); |
| } |
| } |
| return 0; |
| } |
| |
| #define rd_read(fd,buf,sz) _read(fd,buf,sz) |
| #define rd_write(fd,buf,sz) _write(fd,buf,sz) |
| #define rd_close(fd) closesocket(fd) |
| |
| static RD_UNUSED char * |
| rd_strerror_w32 (DWORD errcode, char *dst, size_t dstsize) { |
| char *t; |
| FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | |
| FORMAT_MESSAGE_IGNORE_INSERTS, |
| NULL, errcode, |
| MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| (LPSTR)dst, (DWORD)dstsize - 1, NULL); |
| /* Remove newlines */ |
| while ((t = strchr(dst, (int)'\r')) || (t = strchr(dst, (int)'\n'))) |
| *t = (char)'.'; |
| return dst; |
| } |
| |
| #endif /* !__cplusplus*/ |