From patchwork Thu Oct 21 14:24:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Hostetler X-Patchwork-Id: 12575205 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D62EC433EF for ; Thu, 21 Oct 2021 14:25:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5878B6121E for ; Thu, 21 Oct 2021 14:25:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231622AbhJUO1x (ORCPT ); Thu, 21 Oct 2021 10:27:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38366 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231182AbhJUO1h (ORCPT ); Thu, 21 Oct 2021 10:27:37 -0400 Received: from mail-wm1-x32e.google.com (mail-wm1-x32e.google.com [IPv6:2a00:1450:4864:20::32e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB2E6C061227 for ; Thu, 21 Oct 2021 07:25:17 -0700 (PDT) Received: by mail-wm1-x32e.google.com with SMTP id d198-20020a1c1dcf000000b00322f53b9b89so913063wmd.0 for ; Thu, 21 Oct 2021 07:25:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=66rn+pvA2gArrNQe2ecnAfgJuM96wHeIIhc10sYmfbE=; b=bqt8u3OLTh6LSjY2nsn7jglO2XuZ+Xs4iXQ3iUyvc/ipCEobyb1Tg5RS4H466qR5vV 6RervJMPnucxe2hlby/R+CDU+CWV2cMlrw+/Kf8RpAoFdME+f11yCc3AixgfKHSlyLdo 9VAngP1ISXWuKp+GPNedUijryyOGQnli3fqOXgYxlGuxmC4gFNMSAYpi4dOodDt4/zTF 3MKELmhHySKJOkGOl3qF5Dkxqidxug5STBXJJo+hAxGeol0wsTYJ9UNzbiLPbWzJFcl7 XUEMAQf9cx5lk1UTBG43Dh8s1r+XBUnugozhjuA/y10IElxxHfrbz/NnASNKb/f7XgKd KN4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=66rn+pvA2gArrNQe2ecnAfgJuM96wHeIIhc10sYmfbE=; b=SJddvPjzkxtP0S272yCa6b5OhDL8M9bdXgbYhYYegoxmRnHVqBXlb5G7htIZzuZa4G wrTZwfAG1C/VfiLGt8OAZO6lglsgXe2PvSt6Fj0MxGEdK8Y97LZyt3M0haE90N+X+Q/F UVOFd3ThrsQOozzUxDFL0yQ3tb8mYmZVuNp5/roOdCmegiVsOdSBTCrC/8iNd6ot1nq8 cLwqABjWh9rGndYsg/XSlq2W1fc2GQApaVZ4sYPMtfELexugakZ+YPsAJvSBJVAvTyid 41M/TGrDp7OsCgrZcl/lpoRxErLBxZmUXM/5gbSrc8BWk9f1FAUJwczwZBi9t1s/bkgJ Lx1A== X-Gm-Message-State: AOAM532t+3Wu2efKBJdvajNiyMJf6/faDAsiB+0JH1Bdo7kHalx3+c4y SKmoaM0uicct5d+afplVH+332VaUZQE= X-Google-Smtp-Source: ABdhPJxW82/ol+kPFkr1HOLzWaZnXvxrz9CeB3X32ZtDt4yn7sPBGqJEYGuV80C201rz/VbHJ+bN+A== X-Received: by 2002:a7b:c5cc:: with SMTP id n12mr7047469wmk.43.1634826316305; Thu, 21 Oct 2021 07:25:16 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id f7sm2549182wmg.14.2021.10.21.07.25.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Oct 2021 07:25:16 -0700 (PDT) Message-Id: <5a40b33a00c927373c64536c87fba76a676f8a77.1634826309.git.gitgitgadget@gmail.com> In-Reply-To: References: Date: Thu, 21 Oct 2021 14:24:48 +0000 Subject: [PATCH v4 08/29] compat/fsmonitor/fsm-listen-win32: stub in backend for Windows Fcc: Sent MIME-Version: 1.0 To: git@vger.kernel.org Cc: Jeff Hostetler , Jeff Hostetler , Jeff Hostetler Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Jeff Hostetler From: Jeff Hostetler Stub in empty filesystem listener backend for fsmonitor--daemon on Windows. Signed-off-by: Jeff Hostetler --- Makefile | 13 ++++++++ compat/fsmonitor/fsm-listen-win32.c | 21 +++++++++++++ compat/fsmonitor/fsm-listen.h | 49 +++++++++++++++++++++++++++++ config.mak.uname | 10 ++++++ contrib/buildsystems/CMakeLists.txt | 7 +++++ repo-settings.c | 1 + 6 files changed, 101 insertions(+) create mode 100644 compat/fsmonitor/fsm-listen-win32.c create mode 100644 compat/fsmonitor/fsm-listen.h diff --git a/Makefile b/Makefile index 95ac224bc8d..8a26696c9ed 100644 --- a/Makefile +++ b/Makefile @@ -465,6 +465,11 @@ all:: # directory, and the JSON compilation database 'compile_commands.json' will be # created at the root of the repository. # +# If your platform supports a built-in fsmonitor backend, set +# FSMONITOR_DAEMON_BACKEND to the "" of the corresponding +# `compat/fsmonitor/fsm-listen-.c` that implements the +# `fsm_listen__*()` routines. +# # Define DEVELOPER to enable more compiler warnings. Compiler version # and family are auto detected, but could be overridden by defining # COMPILER_FEATURES (see config.mak.dev). You can still set @@ -1930,6 +1935,11 @@ ifdef NEED_ACCESS_ROOT_HANDLER COMPAT_OBJS += compat/access.o endif +ifdef FSMONITOR_DAEMON_BACKEND + COMPAT_CFLAGS += -DHAVE_FSMONITOR_DAEMON_BACKEND + COMPAT_OBJS += compat/fsmonitor/fsm-listen-$(FSMONITOR_DAEMON_BACKEND).o +endif + ifeq ($(TCLTK_PATH),) NO_TCLTK = NoThanks endif @@ -2805,6 +2815,9 @@ GIT-BUILD-OPTIONS: FORCE @echo DC_SHA1=\''$(subst ','\'',$(subst ','\'',$(DC_SHA1)))'\' >>$@+ @echo SANITIZE_LEAK=\''$(subst ','\'',$(subst ','\'',$(SANITIZE_LEAK)))'\' >>$@+ @echo X=\'$(X)\' >>$@+ +ifdef FSMONITOR_DAEMON_BACKEND + @echo FSMONITOR_DAEMON_BACKEND=\''$(subst ','\'',$(subst ','\'',$(FSMONITOR_DAEMON_BACKEND)))'\' >>$@+ +endif ifdef TEST_OUTPUT_DIRECTORY @echo TEST_OUTPUT_DIRECTORY=\''$(subst ','\'',$(subst ','\'',$(TEST_OUTPUT_DIRECTORY)))'\' >>$@+ endif diff --git a/compat/fsmonitor/fsm-listen-win32.c b/compat/fsmonitor/fsm-listen-win32.c new file mode 100644 index 00000000000..916cbea254f --- /dev/null +++ b/compat/fsmonitor/fsm-listen-win32.c @@ -0,0 +1,21 @@ +#include "cache.h" +#include "config.h" +#include "fsmonitor.h" +#include "fsm-listen.h" + +void fsm_listen__stop_async(struct fsmonitor_daemon_state *state) +{ +} + +void fsm_listen__loop(struct fsmonitor_daemon_state *state) +{ +} + +int fsm_listen__ctor(struct fsmonitor_daemon_state *state) +{ + return -1; +} + +void fsm_listen__dtor(struct fsmonitor_daemon_state *state) +{ +} diff --git a/compat/fsmonitor/fsm-listen.h b/compat/fsmonitor/fsm-listen.h new file mode 100644 index 00000000000..f0539349baf --- /dev/null +++ b/compat/fsmonitor/fsm-listen.h @@ -0,0 +1,49 @@ +#ifndef FSM_LISTEN_H +#define FSM_LISTEN_H + +/* This needs to be implemented by each backend */ + +#ifdef HAVE_FSMONITOR_DAEMON_BACKEND + +struct fsmonitor_daemon_state; + +/* + * Initialize platform-specific data for the fsmonitor listener thread. + * This will be called from the main thread PRIOR to staring the + * fsmonitor_fs_listener thread. + * + * Returns 0 if successful. + * Returns -1 otherwise. + */ +int fsm_listen__ctor(struct fsmonitor_daemon_state *state); + +/* + * Cleanup platform-specific data for the fsmonitor listener thread. + * This will be called from the main thread AFTER joining the listener. + */ +void fsm_listen__dtor(struct fsmonitor_daemon_state *state); + +/* + * The main body of the platform-specific event loop to watch for + * filesystem events. This will run in the fsmonitor_fs_listen thread. + * + * It should call `ipc_server_stop_async()` if the listener thread + * prematurely terminates (because of a filesystem error or if it + * detects that the .git directory has been deleted). (It should NOT + * do so if the listener thread receives a normal shutdown signal from + * the IPC layer.) + * + * It should set `state->error_code` to -1 if the daemon should exit + * with an error. + */ +void fsm_listen__loop(struct fsmonitor_daemon_state *state); + +/* + * Gently request that the fsmonitor listener thread shutdown. + * It does not wait for it to stop. The caller should do a JOIN + * to wait for it. + */ +void fsm_listen__stop_async(struct fsmonitor_daemon_state *state); + +#endif /* HAVE_FSMONITOR_DAEMON_BACKEND */ +#endif /* FSM_LISTEN_H */ diff --git a/config.mak.uname b/config.mak.uname index 3236a4918a3..e6a900c6fd4 100644 --- a/config.mak.uname +++ b/config.mak.uname @@ -426,6 +426,11 @@ ifeq ($(uname_S),Windows) # so we don't need this: # # SNPRINTF_RETURNS_BOGUS = YesPlease + + # The builtin FSMonitor requires Named Pipes and Threads on Windows. + # These are always available, so we do not have to conditionally + # support it. + FSMONITOR_DAEMON_BACKEND = win32 NO_SVN_TESTS = YesPlease RUNTIME_PREFIX = YesPlease HAVE_WPGMPTR = YesWeDo @@ -609,6 +614,11 @@ ifeq ($(uname_S),MINGW) NO_STRTOUMAX = YesPlease NO_MKDTEMP = YesPlease NO_SVN_TESTS = YesPlease + + # The builtin FSMonitor requires Named Pipes and Threads on Windows. + # These are always available, so we do not have to conditionally + # support it. + FSMONITOR_DAEMON_BACKEND = win32 RUNTIME_PREFIX = YesPlease HAVE_WPGMPTR = YesWeDo NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt index fd1399c440f..24a26743dcd 100644 --- a/contrib/buildsystems/CMakeLists.txt +++ b/contrib/buildsystems/CMakeLists.txt @@ -285,6 +285,13 @@ else() endif() endif() +if(SUPPORTS_SIMPLE_IPC) + if(CMAKE_SYSTEM_NAME STREQUAL "Windows") + add_compile_definitions(HAVE_FSMONITOR_DAEMON_BACKEND) + list(APPEND compat_SOURCES compat/fsmonitor/fsm-listen-win32.c) + endif() +endif() + set(EXE_EXTENSION ${CMAKE_EXECUTABLE_SUFFIX}) #header checks diff --git a/repo-settings.c b/repo-settings.c index b93e91a212e..3ed763ad9c6 100644 --- a/repo-settings.c +++ b/repo-settings.c @@ -2,6 +2,7 @@ #include "config.h" #include "repository.h" #include "midx.h" +#include "compat/fsmonitor/fsm-listen.h" static void repo_cfg_bool(struct repository *r, const char *key, int *dest, int def)