Added the beginnings of our power management daemon. Currently does nothing except tell the roster to shut down when you press the power button (in conjuction with acpi_button, of course). Eventually will do things like display low power warnings, spin down hard disks, and display the requisite power info deskbar replicant.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11466 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/Jamfile

@@ -7,6 +7,7 @@ SubInclude OBOS_TOP src servers media ;
 SubInclude OBOS_TOP src servers media_addon ;
 SubInclude OBOS_TOP src servers midi ;
 # SubInclude OBOS_TOP src servers net ;
+SubInclude OBOS_TOP src servers power ;
 SubInclude OBOS_TOP src servers print ;
 SubInclude OBOS_TOP src servers registrar ;
 SubInclude OBOS_TOP src servers screensaver ;

src/servers/power/Jamfile

@@ -0,0 +1,10 @@
+SubDir OBOS_TOP src servers power ;
+
+AddResources power_daemon : power_daemon.rdef ;
+
+Server power_daemon :
+	power_daemon.cpp
+	power_button_monitor.cpp
+	;
+
+LinkSharedOSLibs power_daemon : be ;

src/servers/power/power_button_monitor.cpp

@@ -0,0 +1,30 @@
+#include <Messenger.h>
+#include <Roster.h>
+
+#include "power_button_monitor.h"
+
+#define B_SYSTEM_SHUTDOWN 0x12d
+static const char *kRosterSignature = "application/x-vnd.Be-ROST";
+
+PowerButtonMonitor::PowerButtonMonitor() : BHandler ("power_button_monitor") {
+	power_button_fd = open("/dev/power/button/power",O_RDONLY);
+}
+
+PowerButtonMonitor::~PowerButtonMonitor() {
+	if (power_button_fd > 0)
+		close(power_button_fd);
+}
+
+void PowerButtonMonitor::MessageReceived(BMessage *msg) {
+	if (msg->what != POLL_POWER_BUTTON_STATUS)
+		return;
+		
+	if (power_button_fd <= 0)
+		return;
+		
+	bool button_pressed;
+	read(power_button_fd,&button_pressed,1);
+	
+	if (button_pressed)
+		BMessenger(kRosterSignature).SendMessage(B_SYSTEM_SHUTDOWN);
+}

src/servers/power/power_button_monitor.h

@@ -0,0 +1,19 @@
+#ifndef _POWER_BUTTON_MONITOR_H
+#define _POWER_BUTTON_MONITOR_H
+
+#include <Handler.h>
+
+#define POLL_POWER_BUTTON_STATUS 'ppbs'
+
+class PowerButtonMonitor : public BHandler {
+	public:
+		PowerButtonMonitor();
+		virtual ~PowerButtonMonitor();
+		
+		virtual void MessageReceived(BMessage *msg);
+		
+	private:
+		int power_button_fd;
+};
+
+#endif // _POWER_BUTTON_MONITOR_H

src/servers/power/power_daemon.cpp

@@ -0,0 +1,26 @@
+#include <Application.h>
+#include <MessageRunner.h>
+
+#include "power_button_monitor.h"
+
+class PowerManagementDaemon : public BApplication {
+	public:
+		PowerManagementDaemon();
+		virtual ~PowerManagementDaemon();
+};
+
+int main(void) {
+	new PowerManagementDaemon();
+	be_app->Run();
+	delete be_app;
+	return 0;
+}
+
+PowerManagementDaemon::PowerManagementDaemon() : BApplication("application/x-vnd.Haiku-powermanagement") {
+	PowerButtonMonitor *pb_mon = new PowerButtonMonitor();
+	AddHandler(pb_mon);
+	
+	new BMessageRunner(BMessenger(pb_mon,this),new BMessage(POLL_POWER_BUTTON_STATUS),5e5 /* twice a second */);
+}
+
+PowerManagementDaemon::~PowerManagementDaemon() {}

src/servers/power/power_daemon.rdef

@@ -0,0 +1,22 @@
+
+resource(1, "BEOS:FILE_TYPES") message;
+
+resource(1, "BEOS:APP_SIG") #'MIMS' "application/x-vnd.Haiku-powermanagement";
+
+resource app_version
+{
+	major  = 0, 
+	middle = 0,
+	minor  = 1,
+
+	/* 0 = development	1 = alpha			2 = beta
+	   3 = gamma		4 = golden master	5 = final */
+	variety = 0,
+
+	internal = 0,
+
+	short_info = "Power Management 0.01",
+	long_info = "Haiku Power Management Daemon 0.01 Development"
+};
+
+resource(1, "BEOS:APP_FLAGS") #'APPF' $"04000000";