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-rw-r--r--Source/CMakeLists.txt1
-rw-r--r--Source/cmFileMonitor.cxx389
-rw-r--r--Source/cmFileMonitor.h28
-rw-r--r--Source/cmServer.cxx5
-rw-r--r--Source/cmServer.h3
-rw-r--r--Source/cmServerConnection.cxx9
-rw-r--r--Source/cmServerConnection.h4
-rw-r--r--Source/cmServerProtocol.cxx8
-rw-r--r--Source/cmServerProtocol.h2
9 files changed, 448 insertions, 1 deletions
diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index b8f02e3..bd237e4 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -780,6 +780,7 @@ target_link_libraries(cmake CMakeLib)
if(CMake_HAVE_SERVER_MODE)
add_library(CMakeServerLib
+ cmFileMonitor.cxx cmFileMonitor.h
cmServer.cxx cmServer.h
cmServerConnection.cxx cmServerConnection.h
cmServerProtocol.cxx cmServerProtocol.h
diff --git a/Source/cmFileMonitor.cxx b/Source/cmFileMonitor.cxx
new file mode 100644
index 0000000..b97590b
--- /dev/null
+++ b/Source/cmFileMonitor.cxx
@@ -0,0 +1,389 @@
+/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
+ file Copyright.txt or https://cmake.org/licensing for details. */
+#include "cmFileMonitor.h"
+
+#include <cmsys/SystemTools.hxx>
+
+#include <cassert>
+#include <iostream>
+#include <set>
+#include <unordered_map>
+
+namespace {
+void on_directory_change(uv_fs_event_t* handle, const char* filename,
+ int events, int status);
+void on_handle_close(uv_handle_t* handle);
+} // namespace
+
+class cmIBaseWatcher
+{
+public:
+ cmIBaseWatcher() = default;
+ virtual ~cmIBaseWatcher() = default;
+
+ virtual void Trigger(const std::string& pathSegment, int events,
+ int status) const = 0;
+ virtual std::string Path() const = 0;
+ virtual uv_loop_t* Loop() const = 0;
+
+ virtual void StartWatching() = 0;
+ virtual void StopWatching() = 0;
+
+ virtual std::vector<std::string> WatchedFiles() const = 0;
+ virtual std::vector<std::string> WatchedDirectories() const = 0;
+};
+
+class cmVirtualDirectoryWatcher : public cmIBaseWatcher
+{
+public:
+ ~cmVirtualDirectoryWatcher()
+ {
+ for (auto i : this->Children) {
+ delete i.second;
+ }
+ }
+
+ cmIBaseWatcher* Find(const std::string& ps)
+ {
+ const auto i = this->Children.find(ps);
+ return (i == this->Children.end()) ? nullptr : i->second;
+ }
+
+ void Trigger(const std::string& pathSegment, int events,
+ int status) const final
+ {
+ if (pathSegment.empty()) {
+ for (const auto& i : this->Children) {
+ i.second->Trigger(std::string(), events, status);
+ }
+ } else {
+ const auto i = this->Children.find(pathSegment);
+ if (i != this->Children.end()) {
+ i->second->Trigger(std::string(), events, status);
+ }
+ }
+ }
+
+ void StartWatching() override
+ {
+ for (const auto& i : this->Children) {
+ i.second->StartWatching();
+ }
+ }
+
+ void StopWatching() override
+ {
+ for (const auto& i : this->Children) {
+ i.second->StopWatching();
+ }
+ }
+
+ std::vector<std::string> WatchedFiles() const final
+ {
+ std::vector<std::string> result;
+ for (const auto& i : this->Children) {
+ for (const auto& j : i.second->WatchedFiles()) {
+ result.push_back(j);
+ }
+ }
+ return result;
+ }
+
+ std::vector<std::string> WatchedDirectories() const override
+ {
+ std::vector<std::string> result;
+ for (const auto& i : this->Children) {
+ for (const auto& j : i.second->WatchedDirectories()) {
+ result.push_back(j);
+ }
+ }
+ return result;
+ }
+
+ void Reset()
+ {
+ for (auto c : this->Children) {
+ delete c.second;
+ }
+ this->Children.clear();
+ }
+
+ void AddChildWatcher(const std::string& ps, cmIBaseWatcher* watcher)
+ {
+ assert(!ps.empty());
+ assert(this->Children.find(ps) == this->Children.end());
+ assert(watcher);
+
+ this->Children.emplace(std::make_pair(ps, watcher));
+ }
+
+private:
+ std::unordered_map<std::string, cmIBaseWatcher*> Children; // owned!
+};
+
+// Root of all the different (on windows!) root directories:
+class cmRootWatcher : public cmVirtualDirectoryWatcher
+{
+public:
+ cmRootWatcher(uv_loop_t* loop)
+ : mLoop(loop)
+ {
+ assert(loop);
+ }
+
+ std::string Path() const final
+ {
+ assert(false);
+ return std::string();
+ }
+ uv_loop_t* Loop() const final { return this->mLoop; }
+
+private:
+ uv_loop_t* const mLoop; // no ownership!
+};
+
+// Real directories:
+class cmRealDirectoryWatcher : public cmVirtualDirectoryWatcher
+{
+public:
+ cmRealDirectoryWatcher(cmVirtualDirectoryWatcher* p, const std::string& ps)
+ : Parent(p)
+ , PathSegment(ps)
+ {
+ assert(p);
+ assert(!ps.empty());
+
+ p->AddChildWatcher(ps, this);
+ }
+
+ ~cmRealDirectoryWatcher()
+ {
+ // Handle is freed via uv_handle_close callback!
+ }
+
+ void StartWatching() final
+ {
+ if (!this->Handle) {
+ this->Handle = new uv_fs_event_t;
+
+ uv_fs_event_init(this->Loop(), this->Handle);
+ this->Handle->data = this;
+ uv_fs_event_start(this->Handle, &on_directory_change, Path().c_str(), 0);
+ }
+ cmVirtualDirectoryWatcher::StartWatching();
+ }
+
+ void StopWatching() final
+ {
+ if (this->Handle) {
+ uv_fs_event_stop(this->Handle);
+ uv_close(reinterpret_cast<uv_handle_t*>(this->Handle), &on_handle_close);
+ this->Handle = nullptr;
+ }
+ cmVirtualDirectoryWatcher::StopWatching();
+ }
+
+ uv_loop_t* Loop() const final { return this->Parent->Loop(); }
+
+ std::vector<std::string> WatchedDirectories() const override
+ {
+ std::vector<std::string> result = { Path() };
+ for (const auto& j : cmVirtualDirectoryWatcher::WatchedDirectories()) {
+ result.push_back(j);
+ }
+ return result;
+ }
+
+protected:
+ cmVirtualDirectoryWatcher* const Parent;
+ const std::string PathSegment;
+
+private:
+ uv_fs_event_t* Handle = nullptr; // owner!
+};
+
+// Root directories:
+class cmRootDirectoryWatcher : public cmRealDirectoryWatcher
+{
+public:
+ cmRootDirectoryWatcher(cmRootWatcher* p, const std::string& ps)
+ : cmRealDirectoryWatcher(p, ps)
+ {
+ }
+
+ std::string Path() const final { return this->PathSegment; }
+};
+
+// Normal directories below root:
+class cmDirectoryWatcher : public cmRealDirectoryWatcher
+{
+public:
+ cmDirectoryWatcher(cmRealDirectoryWatcher* p, const std::string& ps)
+ : cmRealDirectoryWatcher(p, ps)
+ {
+ }
+
+ std::string Path() const final
+ {
+ return this->Parent->Path() + this->PathSegment + "/";
+ }
+};
+
+class cmFileWatcher : public cmIBaseWatcher
+{
+public:
+ cmFileWatcher(cmRealDirectoryWatcher* p, const std::string& ps,
+ cmFileMonitor::Callback cb)
+ : Parent(p)
+ , PathSegment(ps)
+ , CbList({ cb })
+ {
+ assert(p);
+ assert(!ps.empty());
+ p->AddChildWatcher(ps, this);
+ }
+
+ void StartWatching() final {}
+
+ void StopWatching() final {}
+
+ void AppendCallback(cmFileMonitor::Callback cb) { CbList.push_back(cb); }
+
+ std::string Path() const final
+ {
+ return this->Parent->Path() + this->PathSegment;
+ }
+
+ std::vector<std::string> WatchedDirectories() const final { return {}; }
+
+ std::vector<std::string> WatchedFiles() const final
+ {
+ return { this->Path() };
+ }
+
+ void Trigger(const std::string& ps, int events, int status) const final
+ {
+ assert(ps.empty());
+ assert(status == 0);
+ static_cast<void>(ps);
+
+ const std::string path = this->Path();
+ for (const auto& cb : this->CbList) {
+ cb(path, events, status);
+ }
+ }
+
+ uv_loop_t* Loop() const final { return this->Parent->Loop(); }
+
+private:
+ cmRealDirectoryWatcher* Parent;
+ const std::string PathSegment;
+ std::vector<cmFileMonitor::Callback> CbList;
+};
+
+namespace {
+
+void on_directory_change(uv_fs_event_t* handle, const char* filename,
+ int events, int status)
+{
+ const cmIBaseWatcher* const watcher =
+ static_cast<const cmIBaseWatcher*>(handle->data);
+ const std::string pathSegment(filename);
+ watcher->Trigger(pathSegment, events, status);
+}
+
+void on_handle_close(uv_handle_t* handle)
+{
+ delete (reinterpret_cast<uv_fs_event_t*>(handle));
+}
+
+} // namespace
+
+cmFileMonitor::cmFileMonitor(uv_loop_t* l)
+ : Root(new cmRootWatcher(l))
+{
+}
+
+cmFileMonitor::~cmFileMonitor()
+{
+ delete this->Root;
+}
+
+void cmFileMonitor::MonitorPaths(const std::vector<std::string>& paths,
+ Callback cb)
+{
+ for (const auto& p : paths) {
+ std::vector<std::string> pathSegments;
+ cmsys::SystemTools::SplitPath(p, pathSegments, true);
+
+ const size_t segmentCount = pathSegments.size();
+ if (segmentCount < 2) { // Expect at least rootdir and filename
+ continue;
+ }
+ cmVirtualDirectoryWatcher* currentWatcher = this->Root;
+ for (size_t i = 0; i < segmentCount; ++i) {
+ assert(currentWatcher);
+
+ const bool fileSegment = (i == segmentCount - 1);
+ const bool rootSegment = (i == 0);
+ assert(
+ !(fileSegment &&
+ rootSegment)); // Can not be both filename and root part of the path!
+
+ const std::string& currentSegment = pathSegments[i];
+
+ cmIBaseWatcher* nextWatcher = currentWatcher->Find(currentSegment);
+ if (!nextWatcher) {
+ if (rootSegment) { // Root part
+ assert(currentWatcher == this->Root);
+ nextWatcher = new cmRootDirectoryWatcher(this->Root, currentSegment);
+ assert(currentWatcher->Find(currentSegment) == nextWatcher);
+ } else if (fileSegment) { // File part
+ assert(currentWatcher != this->Root);
+ nextWatcher = new cmFileWatcher(
+ dynamic_cast<cmRealDirectoryWatcher*>(currentWatcher),
+ currentSegment, cb);
+ assert(currentWatcher->Find(currentSegment) == nextWatcher);
+ } else { // Any normal directory in between
+ nextWatcher = new cmDirectoryWatcher(
+ dynamic_cast<cmRealDirectoryWatcher*>(currentWatcher),
+ currentSegment);
+ assert(currentWatcher->Find(currentSegment) == nextWatcher);
+ }
+ } else {
+ if (fileSegment) {
+ auto filePtr = dynamic_cast<cmFileWatcher*>(nextWatcher);
+ assert(filePtr);
+ filePtr->AppendCallback(cb);
+ continue;
+ }
+ }
+ currentWatcher = dynamic_cast<cmVirtualDirectoryWatcher*>(nextWatcher);
+ }
+ }
+ this->Root->StartWatching();
+}
+
+void cmFileMonitor::StopMonitoring()
+{
+ this->Root->StopWatching();
+ this->Root->Reset();
+}
+
+std::vector<std::string> cmFileMonitor::WatchedFiles() const
+{
+ std::vector<std::string> result;
+ if (this->Root) {
+ result = this->Root->WatchedFiles();
+ }
+ return result;
+}
+
+std::vector<std::string> cmFileMonitor::WatchedDirectories() const
+{
+ std::vector<std::string> result;
+ if (this->Root) {
+ result = this->Root->WatchedDirectories();
+ }
+ return result;
+}
diff --git a/Source/cmFileMonitor.h b/Source/cmFileMonitor.h
new file mode 100644
index 0000000..e05f48d
--- /dev/null
+++ b/Source/cmFileMonitor.h
@@ -0,0 +1,28 @@
+/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
+ file Copyright.txt or https://cmake.org/licensing for details. */
+#pragma once
+
+#include <functional>
+#include <string>
+#include <vector>
+
+#include "cm_uv.h"
+
+class cmRootWatcher;
+
+class cmFileMonitor
+{
+public:
+ cmFileMonitor(uv_loop_t* l);
+ ~cmFileMonitor();
+
+ using Callback = std::function<void(const std::string&, int, int)>;
+ void MonitorPaths(const std::vector<std::string>& paths, Callback cb);
+ void StopMonitoring();
+
+ std::vector<std::string> WatchedFiles() const;
+ std::vector<std::string> WatchedDirectories() const;
+
+private:
+ cmRootWatcher* Root;
+};
diff --git a/Source/cmServer.cxx b/Source/cmServer.cxx
index ba1bd9d..51a363f 100644
--- a/Source/cmServer.cxx
+++ b/Source/cmServer.cxx
@@ -237,6 +237,11 @@ bool cmServer::Serve(std::string* errorMessage)
return Connection->ProcessEvents(errorMessage);
}
+cmFileMonitor* cmServer::FileMonitor() const
+{
+ return Connection->FileMonitor();
+}
+
void cmServer::WriteJsonObject(const Json::Value& jsonValue,
const DebugInfo* debug) const
{
diff --git a/Source/cmServer.h b/Source/cmServer.h
index 796db8e..7f29e32 100644
--- a/Source/cmServer.h
+++ b/Source/cmServer.h
@@ -13,6 +13,7 @@
#include <string>
#include <vector>
+class cmFileMonitor;
class cmServerConnection;
class cmServerProtocol;
class cmServerRequest;
@@ -28,6 +29,8 @@ public:
bool Serve(std::string* errorMessage);
+ cmFileMonitor* FileMonitor() const;
+
private:
void RegisterProtocol(cmServerProtocol* protocol);
diff --git a/Source/cmServerConnection.cxx b/Source/cmServerConnection.cxx
index 89ee6d8..c62ca3c 100644
--- a/Source/cmServerConnection.cxx
+++ b/Source/cmServerConnection.cxx
@@ -4,7 +4,8 @@
#include "cmServerDictionary.h"
-#include <cmServer.h>
+#include "cmFileMonitor.h"
+#include "cmServer.h"
#include <assert.h>
@@ -64,10 +65,16 @@ public:
: Connection(connection)
{
Connection->mLoop = uv_default_loop();
+ if (Connection->mLoop) {
+ Connection->mFileMonitor = new cmFileMonitor(Connection->mLoop);
+ }
}
~LoopGuard()
{
+ if (Connection->mFileMonitor) {
+ delete Connection->mFileMonitor;
+ }
uv_loop_close(Connection->mLoop);
Connection->mLoop = nullptr;
}
diff --git a/Source/cmServerConnection.h b/Source/cmServerConnection.h
index 16b1d5c..78842e7 100644
--- a/Source/cmServerConnection.h
+++ b/Source/cmServerConnection.h
@@ -10,6 +10,7 @@
#endif
class cmServer;
+class cmFileMonitor;
class LoopGuard;
class cmServerConnection
@@ -29,6 +30,8 @@ public:
virtual void Connect(uv_stream_t* server) { (void)(server); }
+ cmFileMonitor* FileMonitor() const { return this->mFileMonitor; }
+
protected:
virtual bool DoSetup(std::string* errorMessage) = 0;
virtual void TearDown() = 0;
@@ -46,6 +49,7 @@ protected:
private:
uv_loop_t* mLoop = nullptr;
+ cmFileMonitor* mFileMonitor = nullptr;
cmServer* Server = nullptr;
friend class LoopGuard;
diff --git a/Source/cmServerProtocol.cxx b/Source/cmServerProtocol.cxx
index f083e49..66cd801 100644
--- a/Source/cmServerProtocol.cxx
+++ b/Source/cmServerProtocol.cxx
@@ -4,6 +4,7 @@
#include "cmCacheManager.h"
#include "cmExternalMakefileProjectGenerator.h"
+#include "cmFileMonitor.h"
#include "cmGeneratorTarget.h"
#include "cmGlobalGenerator.h"
#include "cmListFileCache.h"
@@ -214,6 +215,11 @@ bool cmServerProtocol::Activate(cmServer* server,
return result;
}
+cmFileMonitor* cmServerProtocol::FileMonitor() const
+{
+ return this->m_Server ? this->m_Server->FileMonitor() : nullptr;
+}
+
void cmServerProtocol::SendSignal(const std::string& name,
const Json::Value& data) const
{
@@ -862,6 +868,8 @@ cmServerResponse cmServerProtocol1_0::ProcessConfigure(
return request.ReportError("This instance is inactive.");
}
+ FileMonitor()->StopMonitoring();
+
// Make sure the types of cacheArguments matches (if given):
std::vector<std::string> cacheArgs;
bool cacheArgumentsError = false;
diff --git a/Source/cmServerProtocol.h b/Source/cmServerProtocol.h
index d672a60..586efff 100644
--- a/Source/cmServerProtocol.h
+++ b/Source/cmServerProtocol.h
@@ -13,6 +13,7 @@
#include <string>
class cmake;
+class cmFileMonitor;
class cmServer;
class cmServerRequest;
@@ -81,6 +82,7 @@ public:
bool Activate(cmServer* server, const cmServerRequest& request,
std::string* errorMessage);
+ cmFileMonitor* FileMonitor() const;
void SendSignal(const std::string& name, const Json::Value& data) const;
protected:
generated by cgit v0.12 at 2024-12-28 19:07:20 (GMT)