Windows support

[NoiseByNorthwest]

Initiated from the work of @DanielRuf here https://github.com/DanielRuf/spx-windows-build

[DanielRuf]

Regarding zlib, there might be some additional logic at https://github.com/DanielRuf/php-spx/pull/1/files that can be helpful.

I didn't test this so far due to other more important things.

[NoiseByNorthwest]

@DanielRuf Yes, I now have to add zlib dev package to the windows image. I'm looking for an example, without success so far.

[DanielRuf]

Maybe vcpkg.exe install zlib helps further (see https://vcpkgx.com/details.html?package=zlib and https://vcpkg.io/en/).

https://github.com/DanielRuf/spx-windows-build/actions/runs/10763553391/job/29845207008#step:2:54

I also found this: https://wiki.php.net/internals/windows/libs/apache22

https://github.com/madler/zlib/tree/develop/win32

Not sure if there is some more step needed to compile and load the zlib library.

[DanielRuf]

zlib.lib and zlibd(ebug).lib should be there:

vcpkg.exe install zlib
dir C:/vcpkg/packages/zlib_x64-windows/debug/lib
dir C:/vcpkg/packages/zlib_x64-windows/lib

vcpkg.exe install zlib:x64-windows-static
dir C:/vcpkg/packages/zlib_x64-windows-static/debug/lib
dir C:/vcpkg/packages/zlib_x64-windows-static/lib

C:\vcpkg\packages\zlib_x64-windows\bin contains zlib.pdb and zlib1.dll.
C:\vcpkg\packages\zlib_x64-windows\include contains zconf.h and zlib.h.

I think these should be all relevant files.

I will check later, because a quick search at https://github.com/search?q=repo%3Aphp%2Fphp-windows-builder+libraries&type=code makes me think, that we can simply drop the files in some deps folder, that is linked somehow.

Upon further inspection, this is used via configure --with-php-build="..\deps" in the other project (deps is probably the src folder of PHP, didn't check further). The referenced URLs like https://downloads.php.net/~windows/php-sdk/deps contain some more dependencies (if needed). There we can also find the dll files (see https://downloads.php.net/~windows/php-sdk/deps/dllmapping.json).

[DanielRuf]

@cmb69 before I am going in circles, where can we drop the files to let config.w32 find them with the least amount of changes and most portable setup (configure paramaters / changes only in the CI step)?

[NoiseByNorthwest]

I can't port the logic of the Makefile.frag (adding assets dir copy to install target and defining SPX_HTTP_UI_ASSETS_DIR macro) to win32.
I tried to do the equivalent in a Makefile.frag.w32, without success.
I need some help.

[DanielRuf]

I can't port the logic of the Makefile.frag (adding assets dir copy to install target and defining SPX_HTTP_UI_ASSETS_DIR macro) to win32. I tried to do the equivalent in a Makefile.frag.w32, without success. I need some help.

@cmb69 would you be open to support here and is there something that I can do to cover the efforts or shall I try my luck (still not much C knowledge so it would be pure trial & error on my side)?

[cmb69]

Something like

this patch

 Makefile.frag.w32     | 9 +++++++++
 config.w32            | 3 ++-
 src/php_spx.c         | 2 +-
 src/spx_reporter_fp.c | 2 +-
 4 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/Makefile.frag.w32 b/Makefile.frag.w32
new file mode 100644
index 0000000..da1aaee
--- /dev/null
+++ b/Makefile.frag.w32
@@ -0,0 +1,9 @@
+
+spx_ui_assets_dir = $(PHP_PREFIX)/share/misc/php-spx/assets/web-ui
+
+install-spx-ui-assets:
+	@echo "Installing SPX web UI to: $(spx_ui_assets_dir)"
+	@mkdir -p $(spx_ui_assets_dir)
+	@cp -r assets/web-ui/* $(spx_ui_assets_dir)
+
+install: $(all_targets) $(install_targets) install-spx-ui-assets
diff --git a/config.w32 b/config.w32
index d6cc0f5..4231332 100644
--- a/config.w32
+++ b/config.w32
@@ -5,7 +5,7 @@ ARG_ENABLE("spx-dev", "Compile SPX with debugging symbols", "no");
 if (PHP_SPX == "yes") {
     AC_DEFINE("HAVE_SPX", 1, "spx");
 
-    ADD_FLAG("CFLAGS", "/Ox /Wall /WX /W2 /wd4820 /wd4774 /wd4711 /wd4710 /wd4464 /wd4005");
+    ADD_FLAG("CFLAGS", "/Ox /Wall /W2 /wd4820 /wd4774 /wd4711 /wd4710 /wd4464 /wd4005");
 
     if (PHP_SPX_DEV == "yes") {
         ADD_FLAG("CFLAGS", "/Zi");
@@ -18,6 +18,7 @@ if (PHP_SPX == "yes") {
         ERROR("zlib not found");
     }
 
+    AC_DEFINE("SPX_HTTP_UI_ASSETS_DIR", PHP_PREFIX.replace(/\\/g, "/") + "/share/misc/php-spx/assets/web-ui");
     EXTENSION("spx", "src/php_spx.c \
         src/spx_profiler.c \
         src/spx_profiler_tracer.c \
diff --git a/src/php_spx.c b/src/php_spx.c
index 02276f9..b9759cc 100644
--- a/src/php_spx.c
+++ b/src/php_spx.c
@@ -926,7 +926,7 @@ static void http_ui_handler_shutdown(void)
         goto finish;
     }
 
-    char local_file_absolute_path[PATH_MAX];
+    char local_file_absolute_path[MAXPATHLEN];
 
     if (
         spx_utils_resolve_confined_file_absolute_path(
diff --git a/src/spx_reporter_fp.c b/src/spx_reporter_fp.c
index 6c503ee..f4828d7 100644
--- a/src/spx_reporter_fp.c
+++ b/src/spx_reporter_fp.c
@@ -20,7 +20,7 @@
 #include <stdlib.h>
 #include <math.h>
 
-#include <unistd.h>
+// #include <unistd.h>
 
 #include "spx_reporter_fp.h"
 #include "spx_resource_stats.h"

should be a step in the right direction. With this patch applied (and also having pthreads in the deps/ folder; should be checked in config.w32), I get:

src/spx_metric.c(30): fatal error C1189: #error:  "Please open an issue"

[NoiseByNorthwest]

Thanks @cmb69, I've applied your patch, with a slight variation around PATH_MAX management, and I got this error:

D:\a\php-spx\php-spx\build\ee0377d3\src\php_spx.c : fatal error C1083: Cannot open compiler generated file: 'D:\a\php-spx\php-spx\build\ee0377d3\x64\Release\src\php_spx.obj': No such file or directory

https://github.com/NoiseByNorthwest/php-spx/actions/runs/11263855256/job/31322677812

[cmb69]

I've applied your patch, with a slight variation around PATH_MAX management, and I got this error:

Sorry, I still had no time to look closer into this, but I do not understand why there is a src\ in x64\Release\src\php_spx.obj. The .obj files are supposed to be placed in x64\Release, and they are in my local build. Is that something that php/php-windows-builder does?

[NoiseByNorthwest]

Sorry, I still had no time to look closer into this

Don't worry, and thank you again for your help.

I do not understand why there is a src\ in x64\Release\src\php_spx.obj. The .obj files are supposed to be placed in x64\Release, and they are in my local build. Is that something that php/php-windows-builder does?

I don't know either, I will do some tests with other php-windows-builder's versions, and look at the doc and other extensions using it.

[NoiseByNorthwest]

@DanielRuf I'm pausing the development of this PR until the future web UI version is released or sufficiently advanced.

The current status of this PR is that it is stuck on build issues at CI level. I'm not surprised as this is the kind of difficulty I had anticipated.
Once build issues are fixed, it could take only 1-2 weeks to reach a "working on windows" status. And then few other weeks for fixing windows-related issues with the help of beta testers.

I've also already merged most of the diff required for windows support in a separate branch (see #279) in order to minimize conflicts between master and this branch.