curl/CMake/Platforms/WindowsCache.cmake
Viktor Szakats b563a92cd6
tidy-up: process.h detection and use
This patch aims to cleanup the use of `process.h` header and the macro
`HAVE_PROCESS_H` associated with it.

- `process.h` is always available on Windows. In curl, it is required
  only for `_beginthreadex()` in `lib/curl_threads.c`.

- `process.h` is also available in MS-DOS. In curl, its only use was in
  `lib/smb.c` for `getpid()`. But `getpid()` is in fact declared by
  `unistd.h`, which is always enabled via `lib/config-dos.h`. So the
  header is not necessary.

- `HAVE_PROCESS_H` was detected by CMake, forced to 1 on Windows and
  left to real detection for other platforms.
  It was also set to always-on in `lib/config-win32.h` and
  `lib/config-dos.h`.
  In autotools builds, there was no detection and the macro was never
  set.

Based on these observations, in this patch we:

- Rework Windows `getpid` logic in `lib/smb.c` to always use the
  equivalent direct Win32 API function `GetCurrentProcessId()`, as we
  already did for Windows UWP apps. This makes `process.h` unnecessary
  here on Windows.

- Stop #including `process.h` into files where it was not necessary.
  This is everywhere, except `lib/curl_threads.c`.

  > Strangely enough, `lib/curl_threads.c` compiled fine with autotools
  > because `process.h` is also indirecty included via `unistd.h`. This
  > might have been broken in autotools MSVC builds, where the latter
  > header is missing.

- Delete all remaining `HAVE_PROCESS_H` feature guards, for they were
  unnecessary.

- Delete `HAVE_PROCESS_H` detection from CMake and predefined values
  from `lib/config-*.h` headers.

Reviewed-by: Jay Satiro
Closes #9703
2022-11-01 22:27:28 +00:00

95 lines
2.8 KiB
CMake

#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
if(NOT UNIX)
if(WIN32)
set(HAVE_LIBSOCKET 0)
set(HAVE_GETHOSTNAME 1)
set(HAVE_LIBZ 0)
set(HAVE_ARPA_INET_H 0)
set(HAVE_FCNTL_H 1)
set(HAVE_INTTYPES_H 0)
set(HAVE_IO_H 1)
set(HAVE_NETDB_H 0)
set(HAVE_NETINET_IN_H 0)
set(HAVE_NET_IF_H 0)
set(HAVE_PWD_H 0)
set(HAVE_SETJMP_H 1)
set(HAVE_SIGNAL_H 1)
set(HAVE_STDINT_H 0)
set(HAVE_STDLIB_H 1)
set(HAVE_STRINGS_H 0)
set(HAVE_STRING_H 1)
set(HAVE_SYS_PARAM_H 0)
set(HAVE_SYS_POLL_H 0)
set(HAVE_SYS_SELECT_H 0)
set(HAVE_SYS_SOCKET_H 0)
set(HAVE_SYS_SOCKIO_H 0)
set(HAVE_SYS_STAT_H 1)
set(HAVE_SYS_TIME_H 0)
set(HAVE_SYS_TYPES_H 1)
set(HAVE_SYS_UTIME_H 1)
set(HAVE_TERMIOS_H 0)
set(HAVE_TERMIO_H 0)
set(HAVE_TIME_H 1)
set(HAVE_UTIME_H 0)
set(HAVE_SOCKET 1)
set(HAVE_SELECT 1)
set(HAVE_STRDUP 1)
set(HAVE_STRICMP 1)
set(HAVE_STRCMPI 1)
set(HAVE_GETTIMEOFDAY 0)
set(HAVE_CLOSESOCKET 1)
set(HAVE_SIGSETJMP 0)
set(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1)
set(HAVE_GETPASS_R 0)
set(HAVE_GETPWUID 0)
set(HAVE_GETEUID 0)
set(HAVE_UTIME 1)
set(HAVE_RAND_EGD 0)
set(HAVE_GMTIME_R 0)
set(HAVE_GETADDRINFO_THREADSAFE 1)
set(HAVE_GETHOSTBYNAME_R 0)
set(HAVE_SIGNAL 1)
set(HAVE_GETHOSTBYNAME_R_3 0)
set(HAVE_GETHOSTBYNAME_R_3_REENTRANT 0)
set(HAVE_GETHOSTBYNAME_R_5 0)
set(HAVE_GETHOSTBYNAME_R_5_REENTRANT 0)
set(HAVE_GETHOSTBYNAME_R_6 0)
set(HAVE_GETHOSTBYNAME_R_6_REENTRANT 0)
set(TIME_WITH_SYS_TIME 0)
set(HAVE_O_NONBLOCK 0)
set(HAVE_IN_ADDR_T 0)
set(STDC_HEADERS 1)
set(HAVE_SIGACTION 0)
set(HAVE_MACRO_SIGSETJMP 0)
else()
message("This file should be included on Windows platform only")
endif()
endif()