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#include <errno.h>
#include <sysutils/ServiceManager.h>
#define LOG_TAG "Service"
#include <cutils/log.h>
#include <cutils/properties.h>
ServiceManager::ServiceManager() {
}
int ServiceManager::start(const char *name) {
if (isRunning(name)) {
LOGW("Service '%s' is already running", name);
return 0;
}
LOGD("Starting service '%s'", name);
property_set("ctl.start", name);
int count = 200;
while(count--) {
sched_yield();
if (isRunning(name))
break;
}
if (!count) {
LOGW("Timed out waiting for service '%s' to start", name);
errno = ETIMEDOUT;
return -1;
}
LOGD("Sucessfully started '%s'", name);
return 0;
}
int ServiceManager::stop(const char *name) {
if (!isRunning(name)) {
LOGW("Service '%s' is already stopped", name);
return 0;
}
LOGD("Stopping service '%s'", name);
property_set("ctl.stop", name);
int count = 200;
while(count--) {
sched_yield();
if (!isRunning(name))
break;
}
if (!count) {
LOGW("Timed out waiting for service '%s' to stop", name);
errno = ETIMEDOUT;
return -1;
}
LOGD("Sucessfully stopped '%s'", name);
return 0;
}
bool ServiceManager::isRunning(const char *name) {
char propVal[PROPERTY_VALUE_MAX];
char propName[255];
snprintf(propName, sizeof(propVal), "init.svc.%s", name);
if (property_get(propName, propVal, NULL)) {
if (!strcmp(propVal, "running"))
return true;
}
return false;
}
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