tor-browser

commit 11f2a88ae4ad882f5bfd93d4723eaa9e710a5944
parent 12327d5a5c7c9a6e4b803ce39d3b04bd9a91bf6a
Author: Nazım Can Altınova <canaltinova@gmail.com>
Date:   Wed,  3 Dec 2025 19:24:24 +0000

Bug 2002982 - Add a shell function to query profiler script source count r=iain

This patch adds getGeckoProfilingScriptSourcesCount() to the JS shell,
which returns the number of script sources currently registered with the
Gecko Profiler. This will be used inside a jit-test on the following
commit to verify that script sources are properly registered across
consecutive profiler runs.

Differential Revision: https://phabricator.services.mozilla.com/D274447

Diffstat:
M
js/src/shell/js.cpp
 | 
12
++++++++++++
M
js/src/vm/GeckoProfiler.h
 | 
2
++

2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
@@ -8085,6 +8085,14 @@ static bool DisableGeckoProfiling(JSContext* cx, unsigned argc, Value* vp) {
   return true;
 }
 
+static bool GetGeckoProfilingScriptSourcesCount(JSContext* cx, unsigned argc,
+                                                Value* vp) {
+  CallArgs args = CallArgsFromVp(argc, vp);
+  size_t count = cx->runtime()->geckoProfiler().scriptSourcesCount();
+  args.rval().setNumber(static_cast<double>(count));
+  return true;
+}
+
 // Global mailbox that is used to communicate a shareable object value from one
 // worker to another.
 //
@@ -10575,6 +10583,10 @@ JS_FN_HELP("createUserArrayBuffer", CreateUserArrayBuffer, 1, 0,
 "disableGeckoProfiling()",
 "  Disables Gecko Profiler instrumentation"),
 
+    JS_FN_HELP("getGeckoProfilingScriptSourcesCount", GetGeckoProfilingScriptSourcesCount, 0, 0,
+"getGeckoProfilingScriptSourcesCount()",
+"  Returns the number of script sources registered with the Gecko Profiler"),
+
     JS_FN_HELP("isLatin1", IsLatin1, 1, 0,
 "isLatin1(s)",
 "  Return true iff the string's characters are stored as Latin1."),
diff --git a/js/src/vm/GeckoProfiler.h b/js/src/vm/GeckoProfiler.h
@@ -199,6 +199,8 @@ class GeckoProfilerRuntime {
 
   js::ProfilerJSSources getProfilerScriptSources();
 
+  size_t scriptSourcesCount() { return scriptSources_.readLock()->count(); }
+
   const uint32_t* addressOfEnabled() const { return &enabled_; }
 
   void fixupStringsMapAfterMovingGC();