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Start tracing in base before a tracing controller instance is available

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This commit is contained in:
Chinmay Garde 2015-12-03 14:56:55 -08:00
parent 96fc39f16d
commit abe709013c
1 changed files with 15 additions and 0 deletions
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15
sky/shell/platform/mac/platform_mac.mm
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@ -12,9 +12,11 @@
#include "base/logging.h"
#include "base/mac/scoped_nsautorelease_pool.h"
#include "base/message_loop/message_loop.h"
#include "base/trace_event/trace_event.h"
#include "mojo/edk/embedder/embedder.h"
#include "mojo/edk/embedder/simple_platform_support.h"
#include "sky/shell/shell.h"
#include "sky/shell/switches.h"
#include "sky/shell/ui_delegate.h"
#include "ui/gl/gl_surface.h"
@ -53,6 +55,19 @@ int PlatformMacMain(int argc,
InitializeLogging();
base::CommandLine& command_line = *base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(sky::shell::switches::kTraceStartup)) {
// Usually, all tracing within flutter is managed via the tracing controller
// The tracing controller is accessed via the shell instance. This means
// that tracing can only be enabled once that instance is created. Traces
// early in startup are lost. This enables tracing in base manually till
// the tracing controller takes over.
base::trace_event::TraceLog::GetInstance()->SetEnabled(
base::trace_event::TraceConfig("*",
base::trace_event::RECORD_UNTIL_FULL),
base::trace_event::TraceLog::RECORDING_MODE);
}
scoped_ptr<base::MessageLoopForUI> message_loop(new base::MessageLoopForUI());
#if TARGET_OS_IPHONE