From 7251dd566dac2c1ba7913625dcf39b0992703293 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Duval?= <jerome.duval@gmail.com>
Date: Tue, 24 May 2022 01:40:26 +0200
Subject: [PATCH] Initial support for Haiku (#27793)

* Detect Haiku in core/lib/iomgr

* Detect Haiku in include/grpc/impl/codegen

* CMake: Haiku doesn't need additional libraries

* CMake: Haiku doesn't need additional libraries

* Sanitize: word wrap

Co-authored-by: AJ Heller <hork@google.com>
---
 CMakeLists.txt                            |  2 +-
 include/grpc/impl/codegen/port_platform.h | 26 +++++++++++++++++++++++
 src/core/lib/iomgr/port.h                 | 10 +++++++++
 templates/CMakeLists.txt.template         |  2 +-
 4 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 16c47bf2952..8783b3bf43a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -298,7 +298,7 @@ if (gRPC_XDS_USER_AGENT_IS_CSHARP)
   add_definitions("-DGRPC_XDS_USER_AGENT_NAME_SUFFIX=\"csharp\"" "-DGRPC_XDS_USER_AGENT_VERSION_SUFFIX=\"2.47.0-dev\"")
 endif()
 
-if(UNIX)
+if(UNIX AND NOT HAIKU)
   # -pthread does more than -lpthread
   set(THREADS_PREFER_PTHREAD_FLAG ON)
   find_package(Threads)
diff --git a/include/grpc/impl/codegen/port_platform.h b/include/grpc/impl/codegen/port_platform.h
index 0453de0863f..ef833d470de 100644
--- a/include/grpc/impl/codegen/port_platform.h
+++ b/include/grpc/impl/codegen/port_platform.h
@@ -431,6 +431,32 @@
 #define GPR_HAS_PTHREAD_H 1
 #define GPR_GETPID_IN_UNISTD_H 1
 #define GRPC_ROOT_PEM_PATH "/config/ssl/cert.pem"
+#elif defined(__HAIKU__)
+#define GPR_PLATFORM_STRING "haiku"
+// Haiku is a community-supported platform.
+// Please contact Jerome Duval <jerome.duval@gmail.com> for support.
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE
+#endif
+#define GPR_HAIKU 1
+#define GPR_CPU_POSIX 1
+#define GPR_GCC_ATOMIC 1
+#define GPR_POSIX_LOG 1
+#define GPR_POSIX_ENV 1
+#define GPR_POSIX_TMPFILE 1
+#define GPR_POSIX_STAT 1
+#define GPR_POSIX_STRING 1
+#define GPR_POSIX_SUBPROCESS 1
+#define GPR_POSIX_SYNC 1
+#define GPR_POSIX_TIME 1
+#define GPR_HAS_PTHREAD_H 1
+#define GPR_GETPID_IN_UNISTD_H 1
+#define GPR_SUPPORT_CHANNELS_FROM_FD 1
+#ifdef _LP64
+#define GPR_ARCH_64 1
+#else /* _LP64 */
+#define GPR_ARCH_32 1
+#endif /* _LP64 */
 #else
 #error "Could not auto-detect platform"
 #endif
diff --git a/src/core/lib/iomgr/port.h b/src/core/lib/iomgr/port.h
index 5f0ed329ff4..b3df7ea7c5c 100644
--- a/src/core/lib/iomgr/port.h
+++ b/src/core/lib/iomgr/port.h
@@ -186,6 +186,16 @@
 // TODO(rudominer) Check this does something we want.
 #define GRPC_POSIX_SOCKETUTILS 1
 #define GRPC_TIMER_USE_GENERIC 1
+#elif defined(GPR_HAIKU)
+#define GRPC_HAVE_ARPA_NAMESER 1
+#define GRPC_HAVE_IFADDRS 1
+#define GRPC_HAVE_IPV6_RECVPKTINFO 1
+#define GRPC_HAVE_UNIX_SOCKET 1
+#define GRPC_POSIX_FORK 1
+#define GRPC_POSIX_NO_SPECIAL_WAKEUP_FD 1
+#define GRPC_POSIX_SOCKET 1
+#define GRPC_POSIX_SOCKETUTILS 1
+#define GRPC_POSIX_WAKEUP_FD 1
 #elif !defined(GPR_NO_AUTODETECT_PLATFORM)
 #error "Platform not recognized"
 #endif
diff --git a/templates/CMakeLists.txt.template b/templates/CMakeLists.txt.template
index 72f1d19e8e1..9096d912596 100644
--- a/templates/CMakeLists.txt.template
+++ b/templates/CMakeLists.txt.template
@@ -342,7 +342,7 @@
     add_definitions("-DGRPC_XDS_USER_AGENT_NAME_SUFFIX=\"csharp\"" "-DGRPC_XDS_USER_AGENT_VERSION_SUFFIX=\"${settings.csharp_version}\"")
   endif()
 
-  if(UNIX)
+  if(UNIX AND NOT HAIKU)
     # -pthread does more than -lpthread
     set(THREADS_PREFER_PTHREAD_FLAG ON)
     find_package(Threads)