This source file includes following definitions.
- MessageForJob
- PIDForJob
#include "base/mac/launchd.h"
#include "base/logging.h"
#include "base/mac/scoped_launch_data.h"
namespace base {
namespace mac {
launch_data_t MessageForJob(const std::string& job_label,
const char* operation) {
ScopedLaunchData message(launch_data_alloc(LAUNCH_DATA_DICTIONARY));
if (!message) {
LOG(ERROR) << "launch_data_alloc";
return NULL;
}
ScopedLaunchData job_label_launchd(launch_data_new_string(job_label.c_str()));
if (!job_label_launchd) {
LOG(ERROR) << "launch_data_new_string";
return NULL;
}
if (!launch_data_dict_insert(message,
job_label_launchd.release(),
operation)) {
return NULL;
}
return launch_msg(message);
}
pid_t PIDForJob(const std::string& job_label) {
ScopedLaunchData response(MessageForJob(job_label, LAUNCH_KEY_GETJOB));
if (!response) {
return -1;
}
launch_data_type_t response_type = launch_data_get_type(response);
if (response_type != LAUNCH_DATA_DICTIONARY) {
if (response_type == LAUNCH_DATA_ERRNO) {
LOG(ERROR) << "PIDForJob: error " << launch_data_get_errno(response);
} else {
LOG(ERROR) << "PIDForJob: expected dictionary, got " << response_type;
}
return -1;
}
launch_data_t pid_data = launch_data_dict_lookup(response,
LAUNCH_JOBKEY_PID);
if (!pid_data)
return 0;
if (launch_data_get_type(pid_data) != LAUNCH_DATA_INTEGER) {
LOG(ERROR) << "PIDForJob: expected integer";
return -1;
}
return launch_data_get_integer(pid_data);
}
}
}